--- /dev/null
+/*
+ * DHD Bus Module for SDIO
+ *
+ * Copyright (C) 1999-2010, Broadcom Corporation
+ *
+ * Unless you and Broadcom execute a separate written software license
+ * agreement governing use of this software, this software is licensed to you
+ * under the terms of the GNU General Public License version 2 (the "GPL"),
+ * available at http://www.broadcom.com/licenses/GPLv2.php, with the
+ * following added to such license:
+ *
+ * As a special exception, the copyright holders of this software give you
+ * permission to link this software with independent modules, and to copy and
+ * distribute the resulting executable under terms of your choice, provided that
+ * you also meet, for each linked independent module, the terms and conditions of
+ * the license of that module. An independent module is a module which is not
+ * derived from this software. The special exception does not apply to any
+ * modifications of the software.
+ *
+ * Notwithstanding the above, under no circumstances may you combine this
+ * software in any way with any other Broadcom software provided under a license
+ * other than the GPL, without Broadcom's express prior written consent.
+ *
+ * $Id: dhd_sdio.c,v 1.157.2.27.2.33.2.109 2010/04/22 05:52:46 Exp $
+ */
+
+#include <typedefs.h>
+#include <osl.h>
+#include <bcmsdh.h>
+
+#ifdef BCMEMBEDIMAGE
+#include BCMEMBEDIMAGE
+#endif /* BCMEMBEDIMAGE */
+
+#include <bcmdefs.h>
+#include <bcmutils.h>
+#include <bcmendian.h>
+#include <bcmdevs.h>
+
+#include <siutils.h>
+#include <hndpmu.h>
+#include <hndsoc.h>
+#include <hndrte_armtrap.h>
+#include <sbchipc.h>
+#include <sbhnddma.h>
+
+#include <sdio.h>
+#include <sbsdio.h>
+#include <sbsdpcmdev.h>
+#include <bcmsdpcm.h>
+
+#include <proto/ethernet.h>
+#include <proto/802.1d.h>
+#include <proto/802.11.h>
+
+#include <dngl_stats.h>
+#include <dhd.h>
+#include <dhd_bus.h>
+#include <dhd_proto.h>
+#include <dhd_dbg.h>
+#include <dhdioctl.h>
+#include <sdiovar.h>
+
+#define QLEN 256 /* bulk rx and tx queue lengths */
+#define FCHI (QLEN - 10)
+#define FCLOW (FCHI / 2)
+#define PRIOMASK 7
+
+#define TXRETRIES 2 /* # of retries for tx frames */
+
+#if defined(CONFIG_MACH_SANDGATE2G)
+#define DHD_RXBOUND 250 /* Default for max rx frames in one scheduling */
+#else
+#define DHD_RXBOUND 50 /* Default for max rx frames in one scheduling */
+#endif /* defined(CONFIG_MACH_SANDGATE2G) */
+
+#define DHD_TXBOUND 20 /* Default for max tx frames in one scheduling */
+
+#define DHD_TXMINMAX 1 /* Max tx frames if rx still pending */
+
+#define MEMBLOCK 2048 /* Block size used for downloading of dongle image */
+#define MAX_DATA_BUF (32 * 1024) /* Must be large enough to hold biggest possible glom */
+
+/* Packet alignment for most efficient SDIO (can change based on platform) */
+#ifndef DHD_SDALIGN
+#define DHD_SDALIGN 32
+#endif
+#if !ISPOWEROF2(DHD_SDALIGN)
+#error DHD_SDALIGN is not a power of 2!
+#endif
+
+#ifndef DHD_FIRSTREAD
+#define DHD_FIRSTREAD 32
+#endif
+#if !ISPOWEROF2(DHD_FIRSTREAD)
+#error DHD_FIRSTREAD is not a power of 2!
+#endif
+
+/* Total length of frame header for dongle protocol */
+#define SDPCM_HDRLEN (SDPCM_FRAMETAG_LEN + SDPCM_SWHEADER_LEN)
+#ifdef SDTEST
+#define SDPCM_RESERVE (SDPCM_HDRLEN + SDPCM_TEST_HDRLEN + DHD_SDALIGN)
+#else
+#define SDPCM_RESERVE (SDPCM_HDRLEN + DHD_SDALIGN)
+#endif
+
+/* Space for header read, limit for data packets */
+#ifndef MAX_HDR_READ
+#define MAX_HDR_READ 32
+#endif
+#if !ISPOWEROF2(MAX_HDR_READ)
+#error MAX_HDR_READ is not a power of 2!
+#endif
+
+#define MAX_RX_DATASZ 2048
+
+/* Maximum milliseconds to wait for F2 to come up */
+#define DHD_WAIT_F2RDY 3000
+
+/* Bump up limit on waiting for HT to account for first startup;
+ * if the image is doing a CRC calculation before programming the PMU
+ * for HT availability, it could take a couple hundred ms more, so
+ * max out at a half second (500000us).
+ */
+#if (PMU_MAX_TRANSITION_DLY <= 500000)
+#undef PMU_MAX_TRANSITION_DLY
+#define PMU_MAX_TRANSITION_DLY 500000
+#endif
+
+/* Value for ChipClockCSR during initial setup */
+#define DHD_INIT_CLKCTL1 (SBSDIO_FORCE_HW_CLKREQ_OFF | SBSDIO_ALP_AVAIL_REQ)
+#define DHD_INIT_CLKCTL2 (SBSDIO_FORCE_HW_CLKREQ_OFF | SBSDIO_FORCE_ALP)
+
+/* Flags for SDH calls */
+#define F2SYNC (SDIO_REQ_4BYTE | SDIO_REQ_FIXED)
+
+/* Packet free applicable unconditionally for sdio and sdspi. Conditional if
+ * bufpool was present for gspi bus.
+ */
+#define PKTFREE2() if ((bus->bus != SPI_BUS) || bus->usebufpool) \
+ PKTFREE(bus->dhd->osh, pkt, FALSE);
+DHD_SPINWAIT_SLEEP_INIT(sdioh_spinwait_sleep);
+extern int dhdcdc_set_ioctl(dhd_pub_t *dhd, int ifidx, uint cmd, void *buf, uint len);
+
+
+/* Private data for SDIO bus interaction */
+typedef struct dhd_bus {
+ dhd_pub_t *dhd;
+
+ bcmsdh_info_t *sdh; /* Handle for BCMSDH calls */
+ si_t *sih; /* Handle for SI calls */
+ char *vars; /* Variables (from CIS and/or other) */
+ uint varsz; /* Size of variables buffer */
+ uint32 sbaddr; /* Current SB window pointer (-1, invalid) */
+
+ sdpcmd_regs_t *regs; /* Registers for SDIO core */
+ uint sdpcmrev; /* SDIO core revision */
+ uint armrev; /* CPU core revision */
+ uint ramrev; /* SOCRAM core revision */
+ uint32 ramsize; /* Size of RAM in SOCRAM (bytes) */
+ uint32 orig_ramsize; /* Size of RAM in SOCRAM (bytes) */
+
+ uint32 bus; /* gSPI or SDIO bus */
+ uint32 hostintmask; /* Copy of Host Interrupt Mask */
+ uint32 intstatus; /* Intstatus bits (events) pending */
+ bool dpc_sched; /* Indicates DPC schedule (intrpt rcvd) */
+ bool fcstate; /* State of dongle flow-control */
+
+ uint16 cl_devid; /* cached devid for dhdsdio_probe_attach() */
+ char *fw_path; /* module_param: path to firmware image */
+ char *nv_path; /* module_param: path to nvram vars file */
+ const char *nvram_params; /* user specified nvram params. */
+
+ uint blocksize; /* Block size of SDIO transfers */
+ uint roundup; /* Max roundup limit */
+
+ struct pktq txq; /* Queue length used for flow-control */
+ uint8 flowcontrol; /* per prio flow control bitmask */
+ uint8 tx_seq; /* Transmit sequence number (next) */
+ uint8 tx_max; /* Maximum transmit sequence allowed */
+
+ uint8 hdrbuf[MAX_HDR_READ + DHD_SDALIGN];
+ uint8 *rxhdr; /* Header of current rx frame (in hdrbuf) */
+ uint16 nextlen; /* Next Read Len from last header */
+ uint8 rx_seq; /* Receive sequence number (expected) */
+ bool rxskip; /* Skip receive (awaiting NAK ACK) */
+
+ void *glomd; /* Packet containing glomming descriptor */
+ void *glom; /* Packet chain for glommed superframe */
+ uint glomerr; /* Glom packet read errors */
+
+ uint8 *rxbuf; /* Buffer for receiving control packets */
+ uint rxblen; /* Allocated length of rxbuf */
+ uint8 *rxctl; /* Aligned pointer into rxbuf */
+ uint8 *databuf; /* Buffer for receiving big glom packet */
+ uint8 *dataptr; /* Aligned pointer into databuf */
+ uint rxlen; /* Length of valid data in buffer */
+
+ uint8 sdpcm_ver; /* Bus protocol reported by dongle */
+
+ bool intr; /* Use interrupts */
+ bool poll; /* Use polling */
+ bool ipend; /* Device interrupt is pending */
+ bool intdis; /* Interrupts disabled by isr */
+ uint intrcount; /* Count of device interrupt callbacks */
+ uint lastintrs; /* Count as of last watchdog timer */
+ uint spurious; /* Count of spurious interrupts */
+ uint pollrate; /* Ticks between device polls */
+ uint polltick; /* Tick counter */
+ uint pollcnt; /* Count of active polls */
+
+
+ uint regfails; /* Count of R_REG/W_REG failures */
+
+ uint clkstate; /* State of sd and backplane clock(s) */
+ bool activity; /* Activity flag for clock down */
+ int32 idletime; /* Control for activity timeout */
+ int32 idlecount; /* Activity timeout counter */
+ int32 idleclock; /* How to set bus driver when idle */
+ int32 sd_divisor; /* Speed control to bus driver */
+ int32 sd_mode; /* Mode control to bus driver */
+ int32 sd_rxchain; /* If bcmsdh api accepts PKT chains */
+ bool use_rxchain; /* If dhd should use PKT chains */
+ bool sleeping; /* Is SDIO bus sleeping? */
+ bool rxflow_mode; /* Rx flow control mode */
+ bool rxflow; /* Is rx flow control on */
+ uint prev_rxlim_hit; /* Is prev rx limit exceeded (per dpc schedule) */
+ bool alp_only; /* Don't use HT clock (ALP only) */
+ /* Field to decide if rx of control frames happen in rxbuf or lb-pool */
+ bool usebufpool;
+
+#ifdef SDTEST
+ /* external loopback */
+ bool ext_loop;
+ uint8 loopid;
+
+ /* pktgen configuration */
+ uint pktgen_freq; /* Ticks between bursts */
+ uint pktgen_count; /* Packets to send each burst */
+ uint pktgen_print; /* Bursts between count displays */
+ uint pktgen_total; /* Stop after this many */
+ uint pktgen_minlen; /* Minimum packet data len */
+ uint pktgen_maxlen; /* Maximum packet data len */
+ uint pktgen_mode; /* Configured mode: tx, rx, or echo */
+ uint pktgen_stop; /* Number of tx failures causing stop */
+
+ /* active pktgen fields */
+ uint pktgen_tick; /* Tick counter for bursts */
+ uint pktgen_ptick; /* Burst counter for printing */
+ uint pktgen_sent; /* Number of test packets generated */
+ uint pktgen_rcvd; /* Number of test packets received */
+ uint pktgen_fail; /* Number of failed send attempts */
+ uint16 pktgen_len; /* Length of next packet to send */
+#endif /* SDTEST */
+
+ /* Some additional counters */
+ uint tx_sderrs; /* Count of tx attempts with sd errors */
+ uint fcqueued; /* Tx packets that got queued */
+ uint rxrtx; /* Count of rtx requests (NAK to dongle) */
+ uint rx_toolong; /* Receive frames too long to receive */
+ uint rxc_errors; /* SDIO errors when reading control frames */
+ uint rx_hdrfail; /* SDIO errors on header reads */
+ uint rx_badhdr; /* Bad received headers (roosync?) */
+ uint rx_badseq; /* Mismatched rx sequence number */
+ uint fc_rcvd; /* Number of flow-control events received */
+ uint fc_xoff; /* Number which turned on flow-control */
+ uint fc_xon; /* Number which turned off flow-control */
+ uint rxglomfail; /* Failed deglom attempts */
+ uint rxglomframes; /* Number of glom frames (superframes) */
+ uint rxglompkts; /* Number of packets from glom frames */
+ uint f2rxhdrs; /* Number of header reads */
+ uint f2rxdata; /* Number of frame data reads */
+ uint f2txdata; /* Number of f2 frame writes */
+ uint f1regdata; /* Number of f1 register accesses */
+
+ uint8 *ctrl_frame_buf;
+ uint32 ctrl_frame_len;
+ bool ctrl_frame_stat;
+} dhd_bus_t;
+
+/* clkstate */
+#define CLK_NONE 0
+#define CLK_SDONLY 1
+#define CLK_PENDING 2 /* Not used yet */
+#define CLK_AVAIL 3
+
+#define DHD_NOPMU(dhd) (FALSE)
+
+#ifdef DHD_DEBUG
+static int qcount[NUMPRIO];
+static int tx_packets[NUMPRIO];
+#endif /* DHD_DEBUG */
+
+/* Deferred transmit */
+const uint dhd_deferred_tx = 1;
+
+extern uint dhd_watchdog_ms;
+extern void dhd_os_wd_timer(void *bus, uint wdtick);
+
+/* Tx/Rx bounds */
+uint dhd_txbound;
+uint dhd_rxbound;
+uint dhd_txminmax;
+
+/* override the RAM size if possible */
+#define DONGLE_MIN_MEMSIZE (128 *1024)
+int dhd_dongle_memsize;
+
+static bool dhd_doflow;
+static bool dhd_alignctl;
+
+static bool sd1idle;
+
+static bool retrydata;
+#define RETRYCHAN(chan) (((chan) == SDPCM_EVENT_CHANNEL) || retrydata)
+
+static const uint watermark = 8;
+static const uint firstread = DHD_FIRSTREAD;
+
+#define HDATLEN (firstread - (SDPCM_HDRLEN))
+
+/* Retry count for register access failures */
+static const uint retry_limit = 2;
+
+/* Force even SD lengths (some host controllers mess up on odd bytes) */
+static bool forcealign;
+
+#define ALIGNMENT 4
+
+#if defined(OOB_INTR_ONLY) && defined(HW_OOB)
+extern void bcmsdh_enable_hw_oob_intr(void *sdh, bool enable);
+#endif
+
+#if defined(OOB_INTR_ONLY) && defined(SDIO_ISR_THREAD)
+#error OOB_INTR_ONLY is NOT working with SDIO_ISR_THREAD
+#endif /* defined(OOB_INTR_ONLY) && defined(SDIO_ISR_THREAD) */
+#define PKTALIGN(osh, p, len, align) \
+ do { \
+ uint datalign; \
+ datalign = (uintptr)PKTDATA((osh), (p)); \
+ datalign = ROUNDUP(datalign, (align)) - datalign; \
+ ASSERT(datalign < (align)); \
+ ASSERT(PKTLEN((osh), (p)) >= ((len) + datalign)); \
+ if (datalign) \
+ PKTPULL((osh), (p), datalign); \
+ PKTSETLEN((osh), (p), (len)); \
+ } while (0)
+
+/* Limit on rounding up frames */
+static const uint max_roundup = 512;
+
+/* Try doing readahead */
+static bool dhd_readahead;
+
+
+/* To check if there's window offered */
+#define DATAOK(bus) \
+ (((uint8)(bus->tx_max - bus->tx_seq) != 0) && \
+ (((uint8)(bus->tx_max - bus->tx_seq) & 0x80) == 0))
+
+/* Macros to get register read/write status */
+/* NOTE: these assume a local dhdsdio_bus_t *bus! */
+#define R_SDREG(regvar, regaddr, retryvar) \
+do { \
+ retryvar = 0; \
+ do { \
+ regvar = R_REG(bus->dhd->osh, regaddr); \
+ } while (bcmsdh_regfail(bus->sdh) && (++retryvar <= retry_limit)); \
+ if (retryvar) { \
+ bus->regfails += (retryvar-1); \
+ if (retryvar > retry_limit) { \
+ DHD_ERROR(("%s: FAILED" #regvar "READ, LINE %d\n", \
+ __FUNCTION__, __LINE__)); \
+ regvar = 0; \
+ } \
+ } \
+} while (0)
+
+#define W_SDREG(regval, regaddr, retryvar) \
+do { \
+ retryvar = 0; \
+ do { \
+ W_REG(bus->dhd->osh, regaddr, regval); \
+ } while (bcmsdh_regfail(bus->sdh) && (++retryvar <= retry_limit)); \
+ if (retryvar) { \
+ bus->regfails += (retryvar-1); \
+ if (retryvar > retry_limit) \
+ DHD_ERROR(("%s: FAILED REGISTER WRITE, LINE %d\n", \
+ __FUNCTION__, __LINE__)); \
+ } \
+} while (0)
+
+
+#define DHD_BUS SDIO_BUS
+
+#define PKT_AVAILABLE() (intstatus & I_HMB_FRAME_IND)
+
+#define HOSTINTMASK (I_HMB_SW_MASK | I_CHIPACTIVE)
+
+#define GSPI_PR55150_BAILOUT
+
+
+#ifdef SDTEST
+static void dhdsdio_testrcv(dhd_bus_t *bus, void *pkt, uint seq);
+static void dhdsdio_sdtest_set(dhd_bus_t *bus, bool start);
+#endif
+
+static int dhdsdio_checkdied(dhd_bus_t *bus, uint8 *data, uint size);
+static int dhdsdio_download_state(dhd_bus_t *bus, bool enter);
+
+static void dhdsdio_release(dhd_bus_t *bus, osl_t *osh);
+static void dhdsdio_release_malloc(dhd_bus_t *bus, osl_t *osh);
+static void dhdsdio_disconnect(void *ptr);
+static bool dhdsdio_chipmatch(uint16 chipid);
+static bool dhdsdio_probe_attach(dhd_bus_t *bus, osl_t *osh, void *sdh,
+ void * regsva, uint16 devid);
+static bool dhdsdio_probe_malloc(dhd_bus_t *bus, osl_t *osh, void *sdh);
+static bool dhdsdio_probe_init(dhd_bus_t *bus, osl_t *osh, void *sdh);
+static void dhdsdio_release_dongle(dhd_bus_t *bus, osl_t *osh);
+
+static uint process_nvram_vars(char *varbuf, uint len);
+
+static void dhd_dongle_setmemsize(struct dhd_bus *bus, int mem_size);
+static int dhd_bcmsdh_recv_buf(dhd_bus_t *bus, uint32 addr, uint fn, uint flags,
+ uint8 *buf, uint nbytes,
+ void *pkt, bcmsdh_cmplt_fn_t complete, void *handle);
+static int dhd_bcmsdh_send_buf(dhd_bus_t *bus, uint32 addr, uint fn, uint flags,
+ uint8 *buf, uint nbytes,
+ void *pkt, bcmsdh_cmplt_fn_t complete, void *handle);
+
+static bool dhdsdio_download_firmware(struct dhd_bus *bus, osl_t *osh, void *sdh);
+static int _dhdsdio_download_firmware(struct dhd_bus *bus);
+
+static int dhdsdio_download_code_file(struct dhd_bus *bus, char *image_path);
+static int dhdsdio_download_nvram(struct dhd_bus *bus);
+#ifdef BCMEMBEDIMAGE
+static int dhdsdio_download_code_array(struct dhd_bus *bus);
+#endif
+
+
+static void
+dhd_dongle_setmemsize(struct dhd_bus *bus, int mem_size)
+{
+ int32 min_size = DONGLE_MIN_MEMSIZE;
+ /* Restrict the memsize to user specified limit */
+ DHD_ERROR(("user: Restrict the dongle ram size to %d, min accepted %d\n",
+ dhd_dongle_memsize, min_size));
+ if ((dhd_dongle_memsize > min_size) &&
+ (dhd_dongle_memsize < (int32)bus->orig_ramsize))
+ bus->ramsize = dhd_dongle_memsize;
+}
+
+static int
+dhdsdio_set_siaddr_window(dhd_bus_t *bus, uint32 address)
+{
+ int err = 0;
+ bcmsdh_cfg_write(bus->sdh, SDIO_FUNC_1, SBSDIO_FUNC1_SBADDRLOW,
+ (address >> 8) & SBSDIO_SBADDRLOW_MASK, &err);
+ if (!err)
+ bcmsdh_cfg_write(bus->sdh, SDIO_FUNC_1, SBSDIO_FUNC1_SBADDRMID,
+ (address >> 16) & SBSDIO_SBADDRMID_MASK, &err);
+ if (!err)
+ bcmsdh_cfg_write(bus->sdh, SDIO_FUNC_1, SBSDIO_FUNC1_SBADDRHIGH,
+ (address >> 24) & SBSDIO_SBADDRHIGH_MASK, &err);
+ return err;
+}
+
+
+/* Turn backplane clock on or off */
+static int
+dhdsdio_htclk(dhd_bus_t *bus, bool on, bool pendok)
+{
+ int err;
+ uint8 clkctl, clkreq, devctl;
+ bcmsdh_info_t *sdh;
+
+ DHD_TRACE(("%s: Enter\n", __FUNCTION__));
+
+#if defined(OOB_INTR_ONLY)
+ pendok = FALSE;
+#endif
+ clkctl = 0;
+ sdh = bus->sdh;
+
+
+ if (on) {
+ /* Request HT Avail */
+ clkreq = bus->alp_only ? SBSDIO_ALP_AVAIL_REQ : SBSDIO_HT_AVAIL_REQ;
+
+ if ((bus->sih->chip == BCM4329_CHIP_ID) && (bus->sih->chiprev == 0))
+ clkreq |= SBSDIO_FORCE_ALP;
+
+
+
+
+ bcmsdh_cfg_write(sdh, SDIO_FUNC_1, SBSDIO_FUNC1_CHIPCLKCSR, clkreq, &err);
+ if (err) {
+ DHD_ERROR(("%s: HT Avail request error: %d\n", __FUNCTION__, err));
+ return BCME_ERROR;
+ }
+
+ if (pendok &&
+ ((bus->sih->buscoretype == PCMCIA_CORE_ID) && (bus->sih->buscorerev == 9))) {
+ uint32 dummy, retries;
+ R_SDREG(dummy, &bus->regs->clockctlstatus, retries);
+ }
+
+ /* Check current status */
+ clkctl = bcmsdh_cfg_read(sdh, SDIO_FUNC_1, SBSDIO_FUNC1_CHIPCLKCSR, &err);
+ if (err) {
+ DHD_ERROR(("%s: HT Avail read error: %d\n", __FUNCTION__, err));
+ return BCME_ERROR;
+ }
+
+ /* Go to pending and await interrupt if appropriate */
+ if (!SBSDIO_CLKAV(clkctl, bus->alp_only) && pendok) {
+ /* Allow only clock-available interrupt */
+ devctl = bcmsdh_cfg_read(sdh, SDIO_FUNC_1, SBSDIO_DEVICE_CTL, &err);
+ if (err) {
+ DHD_ERROR(("%s: Devctl access error setting CA: %d\n",
+ __FUNCTION__, err));
+ return BCME_ERROR;
+ }
+
+ devctl |= SBSDIO_DEVCTL_CA_INT_ONLY;
+ bcmsdh_cfg_write(sdh, SDIO_FUNC_1, SBSDIO_DEVICE_CTL, devctl, &err);
+ DHD_INFO(("CLKCTL: set PENDING\n"));
+ bus->clkstate = CLK_PENDING;
+ return BCME_OK;
+ } else if (bus->clkstate == CLK_PENDING) {
+ /* Cancel CA-only interrupt filter */
+ devctl = bcmsdh_cfg_read(sdh, SDIO_FUNC_1, SBSDIO_DEVICE_CTL, &err);
+ devctl &= ~SBSDIO_DEVCTL_CA_INT_ONLY;
+ bcmsdh_cfg_write(sdh, SDIO_FUNC_1, SBSDIO_DEVICE_CTL, devctl, &err);
+ }
+
+ /* Otherwise, wait here (polling) for HT Avail */
+ if (!SBSDIO_CLKAV(clkctl, bus->alp_only)) {
+ SPINWAIT_SLEEP(sdioh_spinwait_sleep,
+ ((clkctl = bcmsdh_cfg_read(sdh, SDIO_FUNC_1,
+ SBSDIO_FUNC1_CHIPCLKCSR, &err)),
+ !SBSDIO_CLKAV(clkctl, bus->alp_only)), PMU_MAX_TRANSITION_DLY);
+ }
+ if (err) {
+ DHD_ERROR(("%s: HT Avail request error: %d\n", __FUNCTION__, err));
+ return BCME_ERROR;
+ }
+ if (!SBSDIO_CLKAV(clkctl, bus->alp_only)) {
+ DHD_ERROR(("%s: HT Avail timeout (%d): clkctl 0x%02x\n",
+ __FUNCTION__, PMU_MAX_TRANSITION_DLY, clkctl));
+ return BCME_ERROR;
+ }
+
+
+ /* Mark clock available */
+ bus->clkstate = CLK_AVAIL;
+ DHD_INFO(("CLKCTL: turned ON\n"));
+
+#if defined(DHD_DEBUG)
+ if (bus->alp_only == TRUE) {
+#if !defined(BCMLXSDMMC)
+ if (!SBSDIO_ALPONLY(clkctl)) {
+ DHD_ERROR(("%s: HT Clock, when ALP Only\n", __FUNCTION__));
+ }
+#endif /* !defined(BCMLXSDMMC) */
+ } else {
+ if (SBSDIO_ALPONLY(clkctl)) {
+ DHD_ERROR(("%s: HT Clock should be on.\n", __FUNCTION__));
+ }
+ }
+#endif /* defined (DHD_DEBUG) */
+
+ bus->activity = TRUE;
+ } else {
+ clkreq = 0;
+
+ if (bus->clkstate == CLK_PENDING) {
+ /* Cancel CA-only interrupt filter */
+ devctl = bcmsdh_cfg_read(sdh, SDIO_FUNC_1, SBSDIO_DEVICE_CTL, &err);
+ devctl &= ~SBSDIO_DEVCTL_CA_INT_ONLY;
+ bcmsdh_cfg_write(sdh, SDIO_FUNC_1, SBSDIO_DEVICE_CTL, devctl, &err);
+ }
+
+ bus->clkstate = CLK_SDONLY;
+ bcmsdh_cfg_write(sdh, SDIO_FUNC_1, SBSDIO_FUNC1_CHIPCLKCSR, clkreq, &err);
+ DHD_INFO(("CLKCTL: turned OFF\n"));
+ if (err) {
+ DHD_ERROR(("%s: Failed access turning clock off: %d\n",
+ __FUNCTION__, err));
+ return BCME_ERROR;
+ }
+ }
+ return BCME_OK;
+}
+
+/* Change idle/active SD state */
+static int
+dhdsdio_sdclk(dhd_bus_t *bus, bool on)
+{
+ int err;
+ int32 iovalue;
+
+ DHD_TRACE(("%s: Enter\n", __FUNCTION__));
+
+ if (on) {
+ if (bus->idleclock == DHD_IDLE_STOP) {
+ /* Turn on clock and restore mode */
+ iovalue = 1;
+ err = bcmsdh_iovar_op(bus->sdh, "sd_clock", NULL, 0,
+ &iovalue, sizeof(iovalue), TRUE);
+ if (err) {
+ DHD_ERROR(("%s: error enabling sd_clock: %d\n",
+ __FUNCTION__, err));
+ return BCME_ERROR;
+ }
+
+ iovalue = bus->sd_mode;
+ err = bcmsdh_iovar_op(bus->sdh, "sd_mode", NULL, 0,
+ &iovalue, sizeof(iovalue), TRUE);
+ if (err) {
+ DHD_ERROR(("%s: error changing sd_mode: %d\n",
+ __FUNCTION__, err));
+ return BCME_ERROR;
+ }
+ } else if (bus->idleclock != DHD_IDLE_ACTIVE) {
+ /* Restore clock speed */
+ iovalue = bus->sd_divisor;
+ err = bcmsdh_iovar_op(bus->sdh, "sd_divisor", NULL, 0,
+ &iovalue, sizeof(iovalue), TRUE);
+ if (err) {
+ DHD_ERROR(("%s: error restoring sd_divisor: %d\n",
+ __FUNCTION__, err));
+ return BCME_ERROR;
+ }
+ }
+ bus->clkstate = CLK_SDONLY;
+ } else {
+ /* Stop or slow the SD clock itself */
+ if ((bus->sd_divisor == -1) || (bus->sd_mode == -1)) {
+ DHD_TRACE(("%s: can't idle clock, divisor %d mode %d\n",
+ __FUNCTION__, bus->sd_divisor, bus->sd_mode));
+ return BCME_ERROR;
+ }
+ if (bus->idleclock == DHD_IDLE_STOP) {
+ if (sd1idle) {
+ /* Change to SD1 mode and turn off clock */
+ iovalue = 1;
+ err = bcmsdh_iovar_op(bus->sdh, "sd_mode", NULL, 0,
+ &iovalue, sizeof(iovalue), TRUE);
+ if (err) {
+ DHD_ERROR(("%s: error changing sd_clock: %d\n",
+ __FUNCTION__, err));
+ return BCME_ERROR;
+ }
+ }
+
+ iovalue = 0;
+ err = bcmsdh_iovar_op(bus->sdh, "sd_clock", NULL, 0,
+ &iovalue, sizeof(iovalue), TRUE);
+ if (err) {
+ DHD_ERROR(("%s: error disabling sd_clock: %d\n",
+ __FUNCTION__, err));
+ return BCME_ERROR;
+ }
+ } else if (bus->idleclock != DHD_IDLE_ACTIVE) {
+ /* Set divisor to idle value */
+ iovalue = bus->idleclock;
+ err = bcmsdh_iovar_op(bus->sdh, "sd_divisor", NULL, 0,
+ &iovalue, sizeof(iovalue), TRUE);
+ if (err) {
+ DHD_ERROR(("%s: error changing sd_divisor: %d\n",
+ __FUNCTION__, err));
+ return BCME_ERROR;
+ }
+ }
+ bus->clkstate = CLK_NONE;
+ }
+
+ return BCME_OK;
+}
+
+/* Transition SD and backplane clock readiness */
+static int
+dhdsdio_clkctl(dhd_bus_t *bus, uint target, bool pendok)
+{
+#ifdef DHD_DEBUG
+ uint oldstate = bus->clkstate;
+#endif /* DHD_DEBUG */
+
+ DHD_TRACE(("%s: Enter\n", __FUNCTION__));
+
+ /* Early exit if we're already there */
+ if (bus->clkstate == target) {
+ if (target == CLK_AVAIL) {
+ dhd_os_wd_timer(bus->dhd, dhd_watchdog_ms);
+ bus->activity = TRUE;
+ }
+ return BCME_OK;
+ }
+
+ switch (target) {
+ case CLK_AVAIL:
+ /* Make sure SD clock is available */
+ if (bus->clkstate == CLK_NONE)
+ dhdsdio_sdclk(bus, TRUE);
+ /* Now request HT Avail on the backplane */
+ dhdsdio_htclk(bus, TRUE, pendok);
+ dhd_os_wd_timer(bus->dhd, dhd_watchdog_ms);
+ bus->activity = TRUE;
+ break;
+
+ case CLK_SDONLY:
+ /* Remove HT request, or bring up SD clock */
+ if (bus->clkstate == CLK_NONE)
+ dhdsdio_sdclk(bus, TRUE);
+ else if (bus->clkstate == CLK_AVAIL)
+ dhdsdio_htclk(bus, FALSE, FALSE);
+ else
+ DHD_ERROR(("dhdsdio_clkctl: request for %d -> %d\n",
+ bus->clkstate, target));
+ dhd_os_wd_timer(bus->dhd, dhd_watchdog_ms);
+ break;
+
+ case CLK_NONE:
+ /* Make sure to remove HT request */
+ if (bus->clkstate == CLK_AVAIL)
+ dhdsdio_htclk(bus, FALSE, FALSE);
+ /* Now remove the SD clock */
+ dhdsdio_sdclk(bus, FALSE);
+ dhd_os_wd_timer(bus->dhd, 0);
+ break;
+ }
+#ifdef DHD_DEBUG
+ DHD_INFO(("dhdsdio_clkctl: %d -> %d\n", oldstate, bus->clkstate));
+#endif /* DHD_DEBUG */
+
+ return BCME_OK;
+}
+
+int
+dhdsdio_bussleep(dhd_bus_t *bus, bool sleep)
+{
+ bcmsdh_info_t *sdh = bus->sdh;
+ sdpcmd_regs_t *regs = bus->regs;
+ uint retries = 0;
+
+ DHD_INFO(("dhdsdio_bussleep: request %s (currently %s)\n",
+ (sleep ? "SLEEP" : "WAKE"),
+ (bus->sleeping ? "SLEEP" : "WAKE")));
+
+ /* Done if we're already in the requested state */
+ if (sleep == bus->sleeping)
+ return BCME_OK;
+
+ /* Going to sleep: set the alarm and turn off the lights... */
+ if (sleep) {
+ /* Don't sleep if something is pending */
+ if (bus->dpc_sched || bus->rxskip || pktq_len(&bus->txq))
+ return BCME_BUSY;
+
+
+ /* Disable SDIO interrupts (no longer interested) */
+ bcmsdh_intr_disable(bus->sdh);
+
+ /* Make sure the controller has the bus up */
+ dhdsdio_clkctl(bus, CLK_AVAIL, FALSE);
+
+ /* Tell device to start using OOB wakeup */
+ W_SDREG(SMB_USE_OOB, ®s->tosbmailbox, retries);
+ if (retries > retry_limit)
+ DHD_ERROR(("CANNOT SIGNAL CHIP, WILL NOT WAKE UP!!\n"));
+
+ /* Turn off our contribution to the HT clock request */
+ dhdsdio_clkctl(bus, CLK_SDONLY, FALSE);
+
+ bcmsdh_cfg_write(sdh, SDIO_FUNC_1, SBSDIO_FUNC1_CHIPCLKCSR,
+ SBSDIO_FORCE_HW_CLKREQ_OFF, NULL);
+
+ /* Isolate the bus */
+ if (bus->sih->chip != BCM4329_CHIP_ID && bus->sih->chip != BCM4319_CHIP_ID) {
+ bcmsdh_cfg_write(sdh, SDIO_FUNC_1, SBSDIO_DEVICE_CTL,
+ SBSDIO_DEVCTL_PADS_ISO, NULL);
+ }
+
+ /* Change state */
+ bus->sleeping = TRUE;
+
+ } else {
+ /* Waking up: bus power up is ok, set local state */
+
+ bcmsdh_cfg_write(sdh, SDIO_FUNC_1, SBSDIO_FUNC1_CHIPCLKCSR,
+ 0, NULL);
+
+ /* Force pad isolation off if possible (in case power never toggled) */
+ if ((bus->sih->buscoretype == PCMCIA_CORE_ID) && (bus->sih->buscorerev >= 10))
+ bcmsdh_cfg_write(sdh, SDIO_FUNC_1, SBSDIO_DEVICE_CTL, 0, NULL);
+
+
+ /* Make sure the controller has the bus up */
+ dhdsdio_clkctl(bus, CLK_AVAIL, FALSE);
+
+ /* Send misc interrupt to indicate OOB not needed */
+ W_SDREG(0, ®s->tosbmailboxdata, retries);
+ if (retries <= retry_limit)
+ W_SDREG(SMB_DEV_INT, ®s->tosbmailbox, retries);
+
+ if (retries > retry_limit)
+ DHD_ERROR(("CANNOT SIGNAL CHIP TO CLEAR OOB!!\n"));
+
+ /* Make sure we have SD bus access */
+ dhdsdio_clkctl(bus, CLK_SDONLY, FALSE);
+
+ /* Change state */
+ bus->sleeping = FALSE;
+
+ /* Enable interrupts again */
+ if (bus->intr && (bus->dhd->busstate == DHD_BUS_DATA)) {
+ bus->intdis = FALSE;
+ bcmsdh_intr_enable(bus->sdh);
+ }
+ }
+
+ return BCME_OK;
+}
+#if defined(OOB_INTR_ONLY)
+void
+dhd_enable_oob_intr(struct dhd_bus *bus, bool enable)
+{
+#if defined(HW_OOB)
+ bcmsdh_enable_hw_oob_intr(bus->sdh, enable);
+#else
+ sdpcmd_regs_t *regs = bus->regs;
+ uint retries = 0;
+
+ dhdsdio_clkctl(bus, CLK_AVAIL, FALSE);
+ if (enable == TRUE) {
+
+ /* Tell device to start using OOB wakeup */
+ W_SDREG(SMB_USE_OOB, ®s->tosbmailbox, retries);
+ if (retries > retry_limit)
+ DHD_ERROR(("CANNOT SIGNAL CHIP, WILL NOT WAKE UP!!\n"));
+
+ } else {
+ /* Send misc interrupt to indicate OOB not needed */
+ W_SDREG(0, ®s->tosbmailboxdata, retries);
+ if (retries <= retry_limit)
+ W_SDREG(SMB_DEV_INT, ®s->tosbmailbox, retries);
+ }
+
+ /* Turn off our contribution to the HT clock request */
+ dhdsdio_clkctl(bus, CLK_SDONLY, FALSE);
+#endif /* !defined(HW_OOB) */
+}
+#endif /* defined(OOB_INTR_ONLY) */
+
+#define BUS_WAKE(bus) \
+ do { \
+ if ((bus)->sleeping) \
+ dhdsdio_bussleep((bus), FALSE); \
+ } while (0);
+
+
+/* Writes a HW/SW header into the packet and sends it. */
+/* Assumes: (a) header space already there, (b) caller holds lock */
+static int
+dhdsdio_txpkt(dhd_bus_t *bus, void *pkt, uint chan, bool free_pkt)
+{
+ int ret;
+ osl_t *osh;
+ uint8 *frame;
+ uint16 len, pad = 0;
+ uint32 swheader;
+ uint retries = 0;
+ bcmsdh_info_t *sdh;
+ void *new;
+ int i;
+
+ DHD_TRACE(("%s: Enter\n", __FUNCTION__));
+
+ sdh = bus->sdh;
+ osh = bus->dhd->osh;
+
+ if (bus->dhd->dongle_reset) {
+ ret = BCME_NOTREADY;
+ goto done;
+ }
+
+ frame = (uint8*)PKTDATA(osh, pkt);
+
+ /* Add alignment padding, allocate new packet if needed */
+ if ((pad = ((uintptr)frame % DHD_SDALIGN))) {
+ if (PKTHEADROOM(osh, pkt) < pad) {
+ DHD_INFO(("%s: insufficient headroom %d for %d pad\n",
+ __FUNCTION__, (int)PKTHEADROOM(osh, pkt), pad));
+ bus->dhd->tx_realloc++;
+ new = PKTGET(osh, (PKTLEN(osh, pkt) + DHD_SDALIGN), TRUE);
+ if (!new) {
+ DHD_ERROR(("%s: couldn't allocate new %d-byte packet\n",
+ __FUNCTION__, PKTLEN(osh, pkt) + DHD_SDALIGN));
+ ret = BCME_NOMEM;
+ goto done;
+ }
+
+ PKTALIGN(osh, new, PKTLEN(osh, pkt), DHD_SDALIGN);
+ bcopy(PKTDATA(osh, pkt), PKTDATA(osh, new), PKTLEN(osh, pkt));
+ if (free_pkt)
+ PKTFREE(osh, pkt, TRUE);
+ /* free the pkt if canned one is not used */
+ free_pkt = TRUE;
+ pkt = new;
+ frame = (uint8*)PKTDATA(osh, pkt);
+ ASSERT(((uintptr)frame % DHD_SDALIGN) == 0);
+ pad = 0;
+ } else {
+ PKTPUSH(osh, pkt, pad);
+ frame = (uint8*)PKTDATA(osh, pkt);
+
+ ASSERT((pad + SDPCM_HDRLEN) <= (int) PKTLEN(osh, pkt));
+ bzero(frame, pad + SDPCM_HDRLEN);
+ }
+ }
+ ASSERT(pad < DHD_SDALIGN);
+
+ /* Hardware tag: 2 byte len followed by 2 byte ~len check (all LE) */
+ len = (uint16)PKTLEN(osh, pkt);
+ *(uint16*)frame = htol16(len);
+ *(((uint16*)frame) + 1) = htol16(~len);
+
+ /* Software tag: channel, sequence number, data offset */
+ swheader = ((chan << SDPCM_CHANNEL_SHIFT) & SDPCM_CHANNEL_MASK) | bus->tx_seq |
+ (((pad + SDPCM_HDRLEN) << SDPCM_DOFFSET_SHIFT) & SDPCM_DOFFSET_MASK);
+ htol32_ua_store(swheader, frame + SDPCM_FRAMETAG_LEN);
+ htol32_ua_store(0, frame + SDPCM_FRAMETAG_LEN + sizeof(swheader));
+ bus->tx_seq = (bus->tx_seq + 1) % SDPCM_SEQUENCE_WRAP;
+
+#ifdef DHD_DEBUG
+ tx_packets[PKTPRIO(pkt)]++;
+ if (DHD_BYTES_ON() &&
+ (((DHD_CTL_ON() && (chan == SDPCM_CONTROL_CHANNEL)) ||
+ (DHD_DATA_ON() && (chan != SDPCM_CONTROL_CHANNEL))))) {
+ prhex("Tx Frame", frame, len);
+ } else if (DHD_HDRS_ON()) {
+ prhex("TxHdr", frame, MIN(len, 16));
+ }
+#endif
+
+ /* Raise len to next SDIO block to eliminate tail command */
+ if (bus->roundup && bus->blocksize && (len > bus->blocksize)) {
+ uint16 pad = bus->blocksize - (len % bus->blocksize);
+ if ((pad <= bus->roundup) && (pad < bus->blocksize))
+#ifdef NOTUSED
+ if (pad <= PKTTAILROOM(osh, pkt))
+#endif /* NOTUSED */
+ len += pad;
+ } else if (len % DHD_SDALIGN) {
+ len += DHD_SDALIGN - (len % DHD_SDALIGN);
+ }
+
+ /* Some controllers have trouble with odd bytes -- round to even */
+ if (forcealign && (len & (ALIGNMENT - 1))) {
+#ifdef NOTUSED
+ if (PKTTAILROOM(osh, pkt))
+#endif
+ len = ROUNDUP(len, ALIGNMENT);
+#ifdef NOTUSED
+ else
+ DHD_ERROR(("%s: sending unrounded %d-byte packet\n", __FUNCTION__, len));
+#endif
+ }
+
+ do {
+ ret = dhd_bcmsdh_send_buf(bus, bcmsdh_cur_sbwad(sdh), SDIO_FUNC_2, F2SYNC,
+ frame, len, pkt, NULL, NULL);
+ bus->f2txdata++;
+ ASSERT(ret != BCME_PENDING);
+
+ if (ret < 0) {
+ /* On failure, abort the command and terminate the frame */
+ DHD_INFO(("%s: sdio error %d, abort command and terminate frame.\n",
+ __FUNCTION__, ret));
+ bus->tx_sderrs++;
+
+ bcmsdh_abort(sdh, SDIO_FUNC_2);
+ bcmsdh_cfg_write(sdh, SDIO_FUNC_1, SBSDIO_FUNC1_FRAMECTRL,
+ SFC_WF_TERM, NULL);
+ bus->f1regdata++;
+
+ for (i = 0; i < 3; i++) {
+ uint8 hi, lo;
+ hi = bcmsdh_cfg_read(sdh, SDIO_FUNC_1,
+ SBSDIO_FUNC1_WFRAMEBCHI, NULL);
+ lo = bcmsdh_cfg_read(sdh, SDIO_FUNC_1,
+ SBSDIO_FUNC1_WFRAMEBCLO, NULL);
+ bus->f1regdata += 2;
+ if ((hi == 0) && (lo == 0))
+ break;
+ }
+
+ }
+ } while ((ret < 0) && retrydata && retries++ < TXRETRIES);
+
+done:
+ /* restore pkt buffer pointer before calling tx complete routine */
+ PKTPULL(osh, pkt, SDPCM_HDRLEN + pad);
+ dhd_os_sdunlock(bus->dhd);
+ dhd_txcomplete(bus->dhd, pkt, ret != 0);
+ dhd_os_sdlock(bus->dhd);
+
+ if (free_pkt)
+ PKTFREE(osh, pkt, TRUE);
+
+ return ret;
+}
+
+int
+dhd_bus_txdata(struct dhd_bus *bus, void *pkt)
+{
+ int ret = BCME_ERROR;
+ osl_t *osh;
+ uint datalen, prec;
+
+ DHD_TRACE(("%s: Enter\n", __FUNCTION__));
+
+ osh = bus->dhd->osh;
+ datalen = PKTLEN(osh, pkt);
+
+#ifdef SDTEST
+ /* Push the test header if doing loopback */
+ if (bus->ext_loop) {
+ uint8* data;
+ PKTPUSH(osh, pkt, SDPCM_TEST_HDRLEN);
+ data = PKTDATA(osh, pkt);
+ *data++ = SDPCM_TEST_ECHOREQ;
+ *data++ = (uint8)bus->loopid++;
+ *data++ = (datalen >> 0);
+ *data++ = (datalen >> 8);
+ datalen += SDPCM_TEST_HDRLEN;
+ }
+#endif /* SDTEST */
+
+ /* Add space for the header */
+ PKTPUSH(osh, pkt, SDPCM_HDRLEN);
+ ASSERT(ISALIGNED((uintptr)PKTDATA(osh, pkt), 2));
+
+ prec = PRIO2PREC((PKTPRIO(pkt) & PRIOMASK));
+
+
+ /* Check for existing queue, current flow-control, pending event, or pending clock */
+ if (dhd_deferred_tx || bus->fcstate || pktq_len(&bus->txq) || bus->dpc_sched ||
+ (!DATAOK(bus)) || (bus->flowcontrol & NBITVAL(prec)) ||
+ (bus->clkstate == CLK_PENDING)) {
+ DHD_TRACE(("%s: deferring pktq len %d\n", __FUNCTION__,
+ pktq_len(&bus->txq)));
+ bus->fcqueued++;
+
+ /* Priority based enq */
+ dhd_os_sdlock_txq(bus->dhd);
+ if (dhd_prec_enq(bus->dhd, &bus->txq, pkt, prec) == FALSE) {
+ PKTPULL(osh, pkt, SDPCM_HDRLEN);
+ dhd_txcomplete(bus->dhd, pkt, FALSE);
+ PKTFREE(osh, pkt, TRUE);
+ DHD_ERROR(("%s: out of bus->txq !!!\n", __FUNCTION__));
+ ret = BCME_NORESOURCE;
+ } else {
+ ret = BCME_OK;
+ }
+ dhd_os_sdunlock_txq(bus->dhd);
+
+ if ((pktq_len(&bus->txq) >= FCHI) && dhd_doflow)
+ dhd_txflowcontrol(bus->dhd, 0, ON);
+
+#ifdef DHD_DEBUG
+ if (pktq_plen(&bus->txq, prec) > qcount[prec])
+ qcount[prec] = pktq_plen(&bus->txq, prec);
+#endif
+ /* Schedule DPC if needed to send queued packet(s) */
+ if (dhd_deferred_tx && !bus->dpc_sched) {
+ bus->dpc_sched = TRUE;
+ dhd_sched_dpc(bus->dhd);
+ }
+ } else {
+ /* Lock: we're about to use shared data/code (and SDIO) */
+ dhd_os_sdlock(bus->dhd);
+
+ /* Otherwise, send it now */
+ BUS_WAKE(bus);
+ dhdsdio_clkctl(bus, CLK_AVAIL, TRUE);
+
+#ifndef SDTEST
+ DHD_TRACE(("%s: calling txpkt\n", __FUNCTION__));
+ ret = dhdsdio_txpkt(bus, pkt, SDPCM_DATA_CHANNEL, TRUE);
+#else
+ ret = dhdsdio_txpkt(bus, pkt,
+ (bus->ext_loop ? SDPCM_TEST_CHANNEL : SDPCM_DATA_CHANNEL), TRUE);
+#endif
+ if (ret)
+ bus->dhd->tx_errors++;
+ else
+ bus->dhd->dstats.tx_bytes += datalen;
+
+ if ((bus->idletime == DHD_IDLE_IMMEDIATE) && !bus->dpc_sched) {
+ bus->activity = FALSE;
+ dhdsdio_clkctl(bus, CLK_NONE, TRUE);
+ }
+
+ dhd_os_sdunlock(bus->dhd);
+ }
+
+
+ return ret;
+}
+
+static uint
+dhdsdio_sendfromq(dhd_bus_t *bus, uint maxframes)
+{
+ void *pkt;
+ uint32 intstatus = 0;
+ uint retries = 0;
+ int ret = 0, prec_out;
+ uint cnt = 0;
+ uint datalen;
+ uint8 tx_prec_map;
+
+ dhd_pub_t *dhd = bus->dhd;
+ sdpcmd_regs_t *regs = bus->regs;
+
+ DHD_TRACE(("%s: Enter\n", __FUNCTION__));
+
+ tx_prec_map = ~bus->flowcontrol;
+
+ /* Send frames until the limit or some other event */
+ for (cnt = 0; (cnt < maxframes) && DATAOK(bus); cnt++) {
+ dhd_os_sdlock_txq(bus->dhd);
+ if ((pkt = pktq_mdeq(&bus->txq, tx_prec_map, &prec_out)) == NULL) {
+ dhd_os_sdunlock_txq(bus->dhd);
+ break;
+ }
+ dhd_os_sdunlock_txq(bus->dhd);
+ datalen = PKTLEN(bus->dhd->osh, pkt) - SDPCM_HDRLEN;
+
+#ifndef SDTEST
+ ret = dhdsdio_txpkt(bus, pkt, SDPCM_DATA_CHANNEL, TRUE);
+#else
+ ret = dhdsdio_txpkt(bus, pkt,
+ (bus->ext_loop ? SDPCM_TEST_CHANNEL : SDPCM_DATA_CHANNEL), TRUE);
+#endif
+ if (ret)
+ bus->dhd->tx_errors++;
+ else
+ bus->dhd->dstats.tx_bytes += datalen;
+
+ /* In poll mode, need to check for other events */
+ if (!bus->intr && cnt)
+ {
+ /* Check device status, signal pending interrupt */
+ R_SDREG(intstatus, ®s->intstatus, retries);
+ bus->f2txdata++;
+ if (bcmsdh_regfail(bus->sdh))
+ break;
+ if (intstatus & bus->hostintmask)
+ bus->ipend = TRUE;
+ }
+ }
+
+ /* Deflow-control stack if needed */
+ if (dhd_doflow && dhd->up && (dhd->busstate == DHD_BUS_DATA) &&
+ dhd->txoff && (pktq_len(&bus->txq) < FCLOW))
+ dhd_txflowcontrol(dhd, 0, OFF);
+
+ return cnt;
+}
+
+int
+dhd_bus_txctl(struct dhd_bus *bus, uchar *msg, uint msglen)
+{
+ uint8 *frame;
+ uint16 len;
+ uint32 swheader;
+ uint retries = 0;
+ bcmsdh_info_t *sdh = bus->sdh;
+ uint8 doff = 0;
+ int ret = -1;
+ int i;
+
+ DHD_TRACE(("%s: Enter\n", __FUNCTION__));
+
+ if (bus->dhd->dongle_reset)
+ return -EIO;
+
+ /* Back the pointer to make a room for bus header */
+ frame = msg - SDPCM_HDRLEN;
+ len = (msglen += SDPCM_HDRLEN);
+
+ /* Add alignment padding (optional for ctl frames) */
+ if (dhd_alignctl) {
+ if ((doff = ((uintptr)frame % DHD_SDALIGN))) {
+ frame -= doff;
+ len += doff;
+ msglen += doff;
+ bzero(frame, doff + SDPCM_HDRLEN);
+ }
+ ASSERT(doff < DHD_SDALIGN);
+ }
+ doff += SDPCM_HDRLEN;
+
+ /* Round send length to next SDIO block */
+ if (bus->roundup && bus->blocksize && (len > bus->blocksize)) {
+ uint16 pad = bus->blocksize - (len % bus->blocksize);
+ if ((pad <= bus->roundup) && (pad < bus->blocksize))
+ len += pad;
+ } else if (len % DHD_SDALIGN) {
+ len += DHD_SDALIGN - (len % DHD_SDALIGN);
+ }
+
+ /* Satisfy length-alignment requirements */
+ if (forcealign && (len & (ALIGNMENT - 1)))
+ len = ROUNDUP(len, ALIGNMENT);
+
+ ASSERT(ISALIGNED((uintptr)frame, 2));
+
+
+ /* Need to lock here to protect txseq and SDIO tx calls */
+ dhd_os_sdlock(bus->dhd);
+
+ BUS_WAKE(bus);
+
+ /* Make sure backplane clock is on */
+ dhdsdio_clkctl(bus, CLK_AVAIL, FALSE);
+
+ /* Hardware tag: 2 byte len followed by 2 byte ~len check (all LE) */
+ *(uint16*)frame = htol16((uint16)msglen);
+ *(((uint16*)frame) + 1) = htol16(~msglen);
+
+ /* Software tag: channel, sequence number, data offset */
+ swheader = ((SDPCM_CONTROL_CHANNEL << SDPCM_CHANNEL_SHIFT) & SDPCM_CHANNEL_MASK)
+ | bus->tx_seq | ((doff << SDPCM_DOFFSET_SHIFT) & SDPCM_DOFFSET_MASK);
+ htol32_ua_store(swheader, frame + SDPCM_FRAMETAG_LEN);
+ htol32_ua_store(0, frame + SDPCM_FRAMETAG_LEN + sizeof(swheader));
+
+ if (!DATAOK(bus)) {
+ bus->ctrl_frame_stat = TRUE;
+ /* Send from dpc */
+ bus->ctrl_frame_buf = frame;
+ bus->ctrl_frame_len = len;
+
+ dhd_wait_for_event(bus->dhd, &bus->ctrl_frame_stat);
+
+ if (bus->ctrl_frame_stat == FALSE)
+ ret = 0;
+ else
+ ret = -1;
+ }
+
+ if (ret == -1) {
+ bus->tx_seq = (bus->tx_seq + 1) % SDPCM_SEQUENCE_WRAP;
+
+#ifdef DHD_DEBUG
+ if (DHD_BYTES_ON() && DHD_CTL_ON()) {
+ prhex("Tx Frame", frame, len);
+ } else if (DHD_HDRS_ON()) {
+ prhex("TxHdr", frame, MIN(len, 16));
+ }
+#endif
+
+ do {
+ ret = dhd_bcmsdh_send_buf(bus, bcmsdh_cur_sbwad(sdh), SDIO_FUNC_2, F2SYNC,
+ frame, len, NULL, NULL, NULL);
+ ASSERT(ret != BCME_PENDING);
+
+ if (ret < 0) {
+ /* On failure, abort the command and terminate the frame */
+ DHD_INFO(("%s: sdio error %d, abort command and terminate frame.\n",
+ __FUNCTION__, ret));
+ bus->tx_sderrs++;
+
+ bcmsdh_abort(sdh, SDIO_FUNC_2);
+
+ bcmsdh_cfg_write(sdh, SDIO_FUNC_1, SBSDIO_FUNC1_FRAMECTRL,
+ SFC_WF_TERM, NULL);
+ bus->f1regdata++;
+
+ for (i = 0; i < 3; i++) {
+ uint8 hi, lo;
+ hi = bcmsdh_cfg_read(sdh, SDIO_FUNC_1,
+ SBSDIO_FUNC1_WFRAMEBCHI, NULL);
+ lo = bcmsdh_cfg_read(sdh, SDIO_FUNC_1,
+ SBSDIO_FUNC1_WFRAMEBCLO, NULL);
+ bus->f1regdata += 2;
+ if ((hi == 0) && (lo == 0))
+ break;
+ }
+
+ }
+ } while ((ret < 0) && retries++ < TXRETRIES);
+ }
+
+ if ((bus->idletime == DHD_IDLE_IMMEDIATE) && !bus->dpc_sched) {
+ bus->activity = FALSE;
+ dhdsdio_clkctl(bus, CLK_NONE, TRUE);
+ }
+
+ dhd_os_sdunlock(bus->dhd);
+
+ if (ret)
+ bus->dhd->tx_ctlerrs++;
+ else
+ bus->dhd->tx_ctlpkts++;
+
+ return ret ? -EIO : 0;
+}
+
+int
+dhd_bus_rxctl(struct dhd_bus *bus, uchar *msg, uint msglen)
+{
+ int timeleft;
+ uint rxlen = 0;
+ bool pending;
+
+ DHD_TRACE(("%s: Enter\n", __FUNCTION__));
+
+ if (bus->dhd->dongle_reset)
+ return -EIO;
+
+ /* Wait until control frame is available */
+ timeleft = dhd_os_ioctl_resp_wait(bus->dhd, &bus->rxlen, &pending);
+
+ dhd_os_sdlock(bus->dhd);
+ rxlen = bus->rxlen;
+ bcopy(bus->rxctl, msg, MIN(msglen, rxlen));
+ bus->rxlen = 0;
+ dhd_os_sdunlock(bus->dhd);
+
+ if (rxlen) {
+ DHD_CTL(("%s: resumed on rxctl frame, got %d expected %d\n",
+ __FUNCTION__, rxlen, msglen));
+ } else if (timeleft == 0) {
+ DHD_ERROR(("%s: resumed on timeout\n", __FUNCTION__));
+ dhd_os_sdlock(bus->dhd);
+ dhdsdio_checkdied(bus, NULL, 0);
+ dhd_os_sdunlock(bus->dhd);
+ } else if (pending == TRUE) {
+ DHD_CTL(("%s: cancelled\n", __FUNCTION__));
+ return -ERESTARTSYS;
+ } else {
+ DHD_CTL(("%s: resumed for unknown reason?\n", __FUNCTION__));
+ dhd_os_sdlock(bus->dhd);
+ dhdsdio_checkdied(bus, NULL, 0);
+ dhd_os_sdunlock(bus->dhd);
+ }
+
+ if (rxlen)
+ bus->dhd->rx_ctlpkts++;
+ else
+ bus->dhd->rx_ctlerrs++;
+
+ return rxlen ? (int)rxlen : -ETIMEDOUT;
+}
+
+/* IOVar table */
+enum {
+ IOV_INTR = 1,
+ IOV_POLLRATE,
+ IOV_SDREG,
+ IOV_SBREG,
+ IOV_SDCIS,
+ IOV_MEMBYTES,
+ IOV_MEMSIZE,
+ IOV_CHECKDIED,
+ IOV_DOWNLOAD,
+ IOV_FORCEEVEN,
+ IOV_SDIOD_DRIVE,
+ IOV_READAHEAD,
+ IOV_SDRXCHAIN,
+ IOV_ALIGNCTL,
+ IOV_SDALIGN,
+ IOV_DEVRESET,
+ IOV_CPU,
+#ifdef SDTEST
+ IOV_PKTGEN,
+ IOV_EXTLOOP,
+#endif /* SDTEST */
+ IOV_SPROM,
+ IOV_TXBOUND,
+ IOV_RXBOUND,
+ IOV_TXMINMAX,
+ IOV_IDLETIME,
+ IOV_IDLECLOCK,
+ IOV_SD1IDLE,
+ IOV_SLEEP,
+ IOV_VARS
+};
+
+const bcm_iovar_t dhdsdio_iovars[] = {
+ {"intr", IOV_INTR, 0, IOVT_BOOL, 0 },
+ {"sleep", IOV_SLEEP, 0, IOVT_BOOL, 0 },
+ {"pollrate", IOV_POLLRATE, 0, IOVT_UINT32, 0 },
+ {"idletime", IOV_IDLETIME, 0, IOVT_INT32, 0 },
+ {"idleclock", IOV_IDLECLOCK, 0, IOVT_INT32, 0 },
+ {"sd1idle", IOV_SD1IDLE, 0, IOVT_BOOL, 0 },
+ {"membytes", IOV_MEMBYTES, 0, IOVT_BUFFER, 2 * sizeof(int) },
+ {"memsize", IOV_MEMSIZE, 0, IOVT_UINT32, 0 },
+ {"download", IOV_DOWNLOAD, 0, IOVT_BOOL, 0 },
+ {"vars", IOV_VARS, 0, IOVT_BUFFER, 0 },
+ {"sdiod_drive", IOV_SDIOD_DRIVE, 0, IOVT_UINT32, 0 },
+ {"readahead", IOV_READAHEAD, 0, IOVT_BOOL, 0 },
+ {"sdrxchain", IOV_SDRXCHAIN, 0, IOVT_BOOL, 0 },
+ {"alignctl", IOV_ALIGNCTL, 0, IOVT_BOOL, 0 },
+ {"sdalign", IOV_SDALIGN, 0, IOVT_BOOL, 0 },
+ {"devreset", IOV_DEVRESET, 0, IOVT_BOOL, 0 },
+#ifdef DHD_DEBUG
+ {"sdreg", IOV_SDREG, 0, IOVT_BUFFER, sizeof(sdreg_t) },
+ {"sbreg", IOV_SBREG, 0, IOVT_BUFFER, sizeof(sdreg_t) },
+ {"sd_cis", IOV_SDCIS, 0, IOVT_BUFFER, DHD_IOCTL_MAXLEN },
+ {"forcealign", IOV_FORCEEVEN, 0, IOVT_BOOL, 0 },
+ {"txbound", IOV_TXBOUND, 0, IOVT_UINT32, 0 },
+ {"rxbound", IOV_RXBOUND, 0, IOVT_UINT32, 0 },
+ {"txminmax", IOV_TXMINMAX, 0, IOVT_UINT32, 0 },
+ {"cpu", IOV_CPU, 0, IOVT_BOOL, 0 },
+ {"checkdied", IOV_CHECKDIED, 0, IOVT_BUFFER, 0 },
+#endif /* DHD_DEBUG */
+#ifdef SDTEST
+ {"extloop", IOV_EXTLOOP, 0, IOVT_BOOL, 0 },
+ {"pktgen", IOV_PKTGEN, 0, IOVT_BUFFER, sizeof(dhd_pktgen_t) },
+#endif /* SDTEST */
+
+ {NULL, 0, 0, 0, 0 }
+};
+
+static void
+dhd_dump_pct(struct bcmstrbuf *strbuf, char *desc, uint num, uint div)
+{
+ uint q1, q2;
+
+ if (!div) {
+ bcm_bprintf(strbuf, "%s N/A", desc);
+ } else {
+ q1 = num / div;
+ q2 = (100 * (num - (q1 * div))) / div;
+ bcm_bprintf(strbuf, "%s %d.%02d", desc, q1, q2);
+ }
+}
+
+void
+dhd_bus_dump(dhd_pub_t *dhdp, struct bcmstrbuf *strbuf)
+{
+ dhd_bus_t *bus = dhdp->bus;
+
+ bcm_bprintf(strbuf, "Bus SDIO structure:\n");
+ bcm_bprintf(strbuf, "hostintmask 0x%08x intstatus 0x%08x sdpcm_ver %d\n",
+ bus->hostintmask, bus->intstatus, bus->sdpcm_ver);
+ bcm_bprintf(strbuf, "fcstate %d qlen %d tx_seq %d, max %d, rxskip %d rxlen %d rx_seq %d\n",
+ bus->fcstate, pktq_len(&bus->txq), bus->tx_seq, bus->tx_max, bus->rxskip,
+ bus->rxlen, bus->rx_seq);
+ bcm_bprintf(strbuf, "intr %d intrcount %d lastintrs %d spurious %d\n",
+ bus->intr, bus->intrcount, bus->lastintrs, bus->spurious);
+ bcm_bprintf(strbuf, "pollrate %d pollcnt %d regfails %d\n",
+ bus->pollrate, bus->pollcnt, bus->regfails);
+
+ bcm_bprintf(strbuf, "\nAdditional counters:\n");
+ bcm_bprintf(strbuf, "tx_sderrs %d fcqueued %d rxrtx %d rx_toolong %d rxc_errors %d\n",
+ bus->tx_sderrs, bus->fcqueued, bus->rxrtx, bus->rx_toolong,
+ bus->rxc_errors);
+ bcm_bprintf(strbuf, "rx_hdrfail %d badhdr %d badseq %d\n",
+ bus->rx_hdrfail, bus->rx_badhdr, bus->rx_badseq);
+ bcm_bprintf(strbuf, "fc_rcvd %d, fc_xoff %d, fc_xon %d\n",
+ bus->fc_rcvd, bus->fc_xoff, bus->fc_xon);
+ bcm_bprintf(strbuf, "rxglomfail %d, rxglomframes %d, rxglompkts %d\n",
+ bus->rxglomfail, bus->rxglomframes, bus->rxglompkts);
+ bcm_bprintf(strbuf, "f2rx (hdrs/data) %d (%d/%d), f2tx %d f1regs %d\n",
+ (bus->f2rxhdrs + bus->f2rxdata), bus->f2rxhdrs, bus->f2rxdata,
+ bus->f2txdata, bus->f1regdata);
+ {
+ dhd_dump_pct(strbuf, "\nRx: pkts/f2rd", bus->dhd->rx_packets,
+ (bus->f2rxhdrs + bus->f2rxdata));
+ dhd_dump_pct(strbuf, ", pkts/f1sd", bus->dhd->rx_packets, bus->f1regdata);
+ dhd_dump_pct(strbuf, ", pkts/sd", bus->dhd->rx_packets,
+ (bus->f2rxhdrs + bus->f2rxdata + bus->f1regdata));
+ dhd_dump_pct(strbuf, ", pkts/int", bus->dhd->rx_packets, bus->intrcount);
+ bcm_bprintf(strbuf, "\n");
+
+ dhd_dump_pct(strbuf, "Rx: glom pct", (100 * bus->rxglompkts),
+ bus->dhd->rx_packets);
+ dhd_dump_pct(strbuf, ", pkts/glom", bus->rxglompkts, bus->rxglomframes);
+ bcm_bprintf(strbuf, "\n");
+
+ dhd_dump_pct(strbuf, "Tx: pkts/f2wr", bus->dhd->tx_packets, bus->f2txdata);
+ dhd_dump_pct(strbuf, ", pkts/f1sd", bus->dhd->tx_packets, bus->f1regdata);
+ dhd_dump_pct(strbuf, ", pkts/sd", bus->dhd->tx_packets,
+ (bus->f2txdata + bus->f1regdata));
+ dhd_dump_pct(strbuf, ", pkts/int", bus->dhd->tx_packets, bus->intrcount);
+ bcm_bprintf(strbuf, "\n");
+
+ dhd_dump_pct(strbuf, "Total: pkts/f2rw",
+ (bus->dhd->tx_packets + bus->dhd->rx_packets),
+ (bus->f2txdata + bus->f2rxhdrs + bus->f2rxdata));
+ dhd_dump_pct(strbuf, ", pkts/f1sd",
+ (bus->dhd->tx_packets + bus->dhd->rx_packets), bus->f1regdata);
+ dhd_dump_pct(strbuf, ", pkts/sd",
+ (bus->dhd->tx_packets + bus->dhd->rx_packets),
+ (bus->f2txdata + bus->f2rxhdrs + bus->f2rxdata + bus->f1regdata));
+ dhd_dump_pct(strbuf, ", pkts/int",
+ (bus->dhd->tx_packets + bus->dhd->rx_packets), bus->intrcount);
+ bcm_bprintf(strbuf, "\n\n");
+ }
+
+#ifdef SDTEST
+ if (bus->pktgen_count) {
+ bcm_bprintf(strbuf, "pktgen config and count:\n");
+ bcm_bprintf(strbuf, "freq %d count %d print %d total %d min %d len %d\n",
+ bus->pktgen_freq, bus->pktgen_count, bus->pktgen_print,
+ bus->pktgen_total, bus->pktgen_minlen, bus->pktgen_maxlen);
+ bcm_bprintf(strbuf, "send attempts %d rcvd %d fail %d\n",
+ bus->pktgen_sent, bus->pktgen_rcvd, bus->pktgen_fail);
+ }
+#endif /* SDTEST */
+#ifdef DHD_DEBUG
+ bcm_bprintf(strbuf, "dpc_sched %d host interrupt%spending\n",
+ bus->dpc_sched, (bcmsdh_intr_pending(bus->sdh) ? " " : " not "));
+ bcm_bprintf(strbuf, "blocksize %d roundup %d\n", bus->blocksize, bus->roundup);
+#endif /* DHD_DEBUG */
+ bcm_bprintf(strbuf, "clkstate %d activity %d idletime %d idlecount %d sleeping %d\n",
+ bus->clkstate, bus->activity, bus->idletime, bus->idlecount, bus->sleeping);
+}
+
+void
+dhd_bus_clearcounts(dhd_pub_t *dhdp)
+{
+ dhd_bus_t *bus = (dhd_bus_t *)dhdp->bus;
+
+ bus->intrcount = bus->lastintrs = bus->spurious = bus->regfails = 0;
+ bus->rxrtx = bus->rx_toolong = bus->rxc_errors = 0;
+ bus->rx_hdrfail = bus->rx_badhdr = bus->rx_badseq = 0;
+ bus->tx_sderrs = bus->fc_rcvd = bus->fc_xoff = bus->fc_xon = 0;
+ bus->rxglomfail = bus->rxglomframes = bus->rxglompkts = 0;
+ bus->f2rxhdrs = bus->f2rxdata = bus->f2txdata = bus->f1regdata = 0;
+}
+
+#ifdef SDTEST
+static int
+dhdsdio_pktgen_get(dhd_bus_t *bus, uint8 *arg)
+{
+ dhd_pktgen_t pktgen;
+
+ pktgen.version = DHD_PKTGEN_VERSION;
+ pktgen.freq = bus->pktgen_freq;
+ pktgen.count = bus->pktgen_count;
+ pktgen.print = bus->pktgen_print;
+ pktgen.total = bus->pktgen_total;
+ pktgen.minlen = bus->pktgen_minlen;
+ pktgen.maxlen = bus->pktgen_maxlen;
+ pktgen.numsent = bus->pktgen_sent;
+ pktgen.numrcvd = bus->pktgen_rcvd;
+ pktgen.numfail = bus->pktgen_fail;
+ pktgen.mode = bus->pktgen_mode;
+ pktgen.stop = bus->pktgen_stop;
+
+ bcopy(&pktgen, arg, sizeof(pktgen));
+
+ return 0;
+}
+
+static int
+dhdsdio_pktgen_set(dhd_bus_t *bus, uint8 *arg)
+{
+ dhd_pktgen_t pktgen;
+ uint oldcnt, oldmode;
+
+ bcopy(arg, &pktgen, sizeof(pktgen));
+ if (pktgen.version != DHD_PKTGEN_VERSION)
+ return BCME_BADARG;
+
+ oldcnt = bus->pktgen_count;
+ oldmode = bus->pktgen_mode;
+
+ bus->pktgen_freq = pktgen.freq;
+ bus->pktgen_count = pktgen.count;
+ bus->pktgen_print = pktgen.print;
+ bus->pktgen_total = pktgen.total;
+ bus->pktgen_minlen = pktgen.minlen;
+ bus->pktgen_maxlen = pktgen.maxlen;
+ bus->pktgen_mode = pktgen.mode;
+ bus->pktgen_stop = pktgen.stop;
+
+ bus->pktgen_tick = bus->pktgen_ptick = 0;
+ bus->pktgen_len = MAX(bus->pktgen_len, bus->pktgen_minlen);
+ bus->pktgen_len = MIN(bus->pktgen_len, bus->pktgen_maxlen);
+
+ /* Clear counts for a new pktgen (mode change, or was stopped) */
+ if (bus->pktgen_count && (!oldcnt || oldmode != bus->pktgen_mode))
+ bus->pktgen_sent = bus->pktgen_rcvd = bus->pktgen_fail = 0;
+
+ return 0;
+}
+#endif /* SDTEST */
+
+static int
+dhdsdio_membytes(dhd_bus_t *bus, bool write, uint32 address, uint8 *data, uint size)
+{
+ int bcmerror = 0;
+ uint32 sdaddr;
+ uint dsize;
+
+ /* Determine initial transfer parameters */
+ sdaddr = address & SBSDIO_SB_OFT_ADDR_MASK;
+ if ((sdaddr + size) & SBSDIO_SBWINDOW_MASK)
+ dsize = (SBSDIO_SB_OFT_ADDR_LIMIT - sdaddr);
+ else
+ dsize = size;
+
+ /* Set the backplane window to include the start address */
+ if ((bcmerror = dhdsdio_set_siaddr_window(bus, address))) {
+ DHD_ERROR(("%s: window change failed\n", __FUNCTION__));
+ goto xfer_done;
+ }
+
+ /* Do the transfer(s) */
+ while (size) {
+ DHD_INFO(("%s: %s %d bytes at offset 0x%08x in window 0x%08x\n",
+ __FUNCTION__, (write ? "write" : "read"), dsize, sdaddr,
+ (address & SBSDIO_SBWINDOW_MASK)));
+ if ((bcmerror = bcmsdh_rwdata(bus->sdh, write, sdaddr, data, dsize))) {
+ DHD_ERROR(("%s: membytes transfer failed\n", __FUNCTION__));
+ break;
+ }
+
+ /* Adjust for next transfer (if any) */
+ if ((size -= dsize)) {
+ data += dsize;
+ address += dsize;
+ if ((bcmerror = dhdsdio_set_siaddr_window(bus, address))) {
+ DHD_ERROR(("%s: window change failed\n", __FUNCTION__));
+ break;
+ }
+ sdaddr = 0;
+ dsize = MIN(SBSDIO_SB_OFT_ADDR_LIMIT, size);
+ }
+ }
+
+xfer_done:
+ /* Return the window to backplane enumeration space for core access */
+ if (dhdsdio_set_siaddr_window(bus, bcmsdh_cur_sbwad(bus->sdh))) {
+ DHD_ERROR(("%s: FAILED to set window back to 0x%x\n", __FUNCTION__,
+ bcmsdh_cur_sbwad(bus->sdh)));
+ }
+
+ return bcmerror;
+}
+
+static int
+dhdsdio_readshared(dhd_bus_t *bus, sdpcm_shared_t *sh)
+{
+ uint32 addr;
+ int rv;
+
+ /* Read last word in memory to determine address of sdpcm_shared structure */
+ if ((rv = dhdsdio_membytes(bus, FALSE, bus->ramsize - 4, (uint8 *)&addr, 4)) < 0)
+ return rv;
+
+ addr = ltoh32(addr);
+
+ DHD_INFO(("sdpcm_shared address 0x%08X\n", addr));
+
+ /*
+ * Check if addr is valid.
+ * NVRAM length at the end of memory should have been overwritten.
+ */
+ if (addr == 0 || ((~addr >> 16) & 0xffff) == (addr & 0xffff)) {
+ DHD_ERROR(("%s: address (0x%08x) of sdpcm_shared invalid\n", __FUNCTION__, addr));
+ return BCME_ERROR;
+ }
+
+ /* Read hndrte_shared structure */
+ if ((rv = dhdsdio_membytes(bus, FALSE, addr, (uint8 *)sh, sizeof(sdpcm_shared_t))) < 0)
+ return rv;
+
+ /* Endianness */
+ sh->flags = ltoh32(sh->flags);
+ sh->trap_addr = ltoh32(sh->trap_addr);
+ sh->assert_exp_addr = ltoh32(sh->assert_exp_addr);
+ sh->assert_file_addr = ltoh32(sh->assert_file_addr);
+ sh->assert_line = ltoh32(sh->assert_line);
+ sh->console_addr = ltoh32(sh->console_addr);
+ sh->msgtrace_addr = ltoh32(sh->msgtrace_addr);
+
+ if ((sh->flags & SDPCM_SHARED_VERSION_MASK) != SDPCM_SHARED_VERSION) {
+ DHD_ERROR(("%s: sdpcm_shared version %d in dhd "
+ "is different than sdpcm_shared version %d in dongle\n",
+ __FUNCTION__, SDPCM_SHARED_VERSION,
+ sh->flags & SDPCM_SHARED_VERSION_MASK));
+ return BCME_ERROR;
+ }
+
+ return BCME_OK;
+}
+
+static int
+dhdsdio_checkdied(dhd_bus_t *bus, uint8 *data, uint size)
+{
+ int bcmerror = 0;
+ uint msize = 512;
+ char *mbuffer = NULL;
+ uint maxstrlen = 256;
+ char *str = NULL;
+ trap_t tr;
+ sdpcm_shared_t sdpcm_shared;
+ struct bcmstrbuf strbuf;
+
+ DHD_TRACE(("%s: Enter\n", __FUNCTION__));
+
+ if (data == NULL) {
+ /*
+ * Called after a rx ctrl timeout. "data" is NULL.
+ * allocate memory to trace the trap or assert.
+ */
+ size = msize;
+ mbuffer = data = MALLOC(bus->dhd->osh, msize);
+ if (mbuffer == NULL) {
+ DHD_ERROR(("%s: MALLOC(%d) failed \n", __FUNCTION__, msize));
+ bcmerror = BCME_NOMEM;
+ goto done;
+ }
+ }
+
+ if ((str = MALLOC(bus->dhd->osh, maxstrlen)) == NULL) {
+ DHD_ERROR(("%s: MALLOC(%d) failed \n", __FUNCTION__, maxstrlen));
+ bcmerror = BCME_NOMEM;
+ goto done;
+ }
+
+ if ((bcmerror = dhdsdio_readshared(bus, &sdpcm_shared)) < 0)
+ goto done;
+
+ bcm_binit(&strbuf, data, size);
+
+ bcm_bprintf(&strbuf, "msgtrace address : 0x%08X\nconsole address : 0x%08X\n",
+ sdpcm_shared.msgtrace_addr, sdpcm_shared.console_addr);
+
+ if ((sdpcm_shared.flags & SDPCM_SHARED_ASSERT_BUILT) == 0) {
+ /* NOTE: Misspelled assert is intentional - DO NOT FIX.
+ * (Avoids conflict with real asserts for programmatic parsing of output.)
+ */
+ bcm_bprintf(&strbuf, "Assrt not built in dongle\n");
+ }
+
+ if ((sdpcm_shared.flags & (SDPCM_SHARED_ASSERT|SDPCM_SHARED_TRAP)) == 0) {
+ /* NOTE: Misspelled assert is intentional - DO NOT FIX.
+ * (Avoids conflict with real asserts for programmatic parsing of output.)
+ */
+ bcm_bprintf(&strbuf, "No trap%s in dongle",
+ (sdpcm_shared.flags & SDPCM_SHARED_ASSERT_BUILT)
+ ?"/assrt" :"");
+ } else {
+ if (sdpcm_shared.flags & SDPCM_SHARED_ASSERT) {
+ /* Download assert */
+ bcm_bprintf(&strbuf, "Dongle assert");
+ if (sdpcm_shared.assert_exp_addr != 0) {
+ str[0] = '\0';
+ if ((bcmerror = dhdsdio_membytes(bus, FALSE,
+ sdpcm_shared.assert_exp_addr,
+ (uint8 *)str, maxstrlen)) < 0)
+ goto done;
+
+ str[maxstrlen - 1] = '\0';
+ bcm_bprintf(&strbuf, " expr \"%s\"", str);
+ }
+
+ if (sdpcm_shared.assert_file_addr != 0) {
+ str[0] = '\0';
+ if ((bcmerror = dhdsdio_membytes(bus, FALSE,
+ sdpcm_shared.assert_file_addr,
+ (uint8 *)str, maxstrlen)) < 0)
+ goto done;
+
+ str[maxstrlen - 1] = '\0';
+ bcm_bprintf(&strbuf, " file \"%s\"", str);
+ }
+
+ bcm_bprintf(&strbuf, " line %d ", sdpcm_shared.assert_line);
+ }
+
+ if (sdpcm_shared.flags & SDPCM_SHARED_TRAP) {
+ if ((bcmerror = dhdsdio_membytes(bus, FALSE,
+ sdpcm_shared.trap_addr,
+ (uint8*)&tr, sizeof(trap_t))) < 0)
+ goto done;
+
+ bcm_bprintf(&strbuf,
+ "Dongle trap type 0x%x @ epc 0x%x, cpsr 0x%x, spsr 0x%x, sp 0x%x,"
+ "lp 0x%x, rpc 0x%x Trap offset 0x%x, "
+ "r0 0x%x, r1 0x%x, r2 0x%x, r3 0x%x, r4 0x%x, r5 0x%x, r6 0x%x, r7 0x%x\n",
+ tr.type, tr.epc, tr.cpsr, tr.spsr, tr.r13, tr.r14, tr.pc,
+ sdpcm_shared.trap_addr,
+ tr.r0, tr.r1, tr.r2, tr.r3, tr.r4, tr.r5, tr.r6, tr.r7);
+ }
+ }
+
+ if (sdpcm_shared.flags & (SDPCM_SHARED_ASSERT | SDPCM_SHARED_TRAP)) {
+ DHD_ERROR(("%s: %s\n", __FUNCTION__, strbuf.origbuf));
+ }
+
+done:
+ if (mbuffer)
+ MFREE(bus->dhd->osh, mbuffer, msize);
+ if (str)
+ MFREE(bus->dhd->osh, str, maxstrlen);
+
+ return bcmerror;
+}
+
+int
+dhdsdio_downloadvars(dhd_bus_t *bus, void *arg, int len)
+{
+ int bcmerror = BCME_OK;
+
+ DHD_TRACE(("%s: Enter\n", __FUNCTION__));
+
+ /* Basic sanity checks */
+ if (bus->dhd->up) {
+ bcmerror = BCME_NOTDOWN;
+ goto err;
+ }
+ if (!len) {
+ bcmerror = BCME_BUFTOOSHORT;
+ goto err;
+ }
+
+ /* Free the old ones and replace with passed variables */
+ if (bus->vars)
+ MFREE(bus->dhd->osh, bus->vars, bus->varsz);
+
+ bus->vars = MALLOC(bus->dhd->osh, len);
+ bus->varsz = bus->vars ? len : 0;
+ if (bus->vars == NULL) {
+ bcmerror = BCME_NOMEM;
+ goto err;
+ }
+
+ /* Copy the passed variables, which should include the terminating double-null */
+ bcopy(arg, bus->vars, bus->varsz);
+err:
+ return bcmerror;
+}
+
+static int
+dhdsdio_doiovar(dhd_bus_t *bus, const bcm_iovar_t *vi, uint32 actionid, const char *name,
+ void *params, int plen, void *arg, int len, int val_size)
+{
+ int bcmerror = 0;
+ int32 int_val = 0;
+ bool bool_val = 0;
+
+ DHD_TRACE(("%s: Enter, action %d name %s params %p plen %d arg %p len %d val_size %d\n",
+ __FUNCTION__, actionid, name, params, plen, arg, len, val_size));
+
+ if ((bcmerror = bcm_iovar_lencheck(vi, arg, len, IOV_ISSET(actionid))) != 0)
+ goto exit;
+
+ if (plen >= (int)sizeof(int_val))
+ bcopy(params, &int_val, sizeof(int_val));
+
+ bool_val = (int_val != 0) ? TRUE : FALSE;
+
+
+ /* Some ioctls use the bus */
+ dhd_os_sdlock(bus->dhd);
+
+ /* Check if dongle is in reset. If so, only allow DEVRESET iovars */
+ if (bus->dhd->dongle_reset && !(actionid == IOV_SVAL(IOV_DEVRESET) ||
+ actionid == IOV_GVAL(IOV_DEVRESET))) {
+ bcmerror = BCME_NOTREADY;
+ goto exit;
+ }
+
+ /* Handle sleep stuff before any clock mucking */
+ if (vi->varid == IOV_SLEEP) {
+ if (IOV_ISSET(actionid)) {
+ bcmerror = dhdsdio_bussleep(bus, bool_val);
+ } else {
+ int_val = (int32)bus->sleeping;
+ bcopy(&int_val, arg, val_size);
+ }
+ goto exit;
+ }
+
+ /* Request clock to allow SDIO accesses */
+ if (!bus->dhd->dongle_reset) {
+ BUS_WAKE(bus);
+ dhdsdio_clkctl(bus, CLK_AVAIL, FALSE);
+ }
+
+ switch (actionid) {
+ case IOV_GVAL(IOV_INTR):
+ int_val = (int32)bus->intr;
+ bcopy(&int_val, arg, val_size);
+ break;
+
+ case IOV_SVAL(IOV_INTR):
+ bus->intr = bool_val;
+ bus->intdis = FALSE;
+ if (bus->dhd->up) {
+ if (bus->intr) {
+ DHD_INTR(("%s: enable SDIO device interrupts\n", __FUNCTION__));
+ bcmsdh_intr_enable(bus->sdh);
+ } else {
+ DHD_INTR(("%s: disable SDIO interrupts\n", __FUNCTION__));
+ bcmsdh_intr_disable(bus->sdh);
+ }
+ }
+ break;
+
+ case IOV_GVAL(IOV_POLLRATE):
+ int_val = (int32)bus->pollrate;
+ bcopy(&int_val, arg, val_size);
+ break;
+
+ case IOV_SVAL(IOV_POLLRATE):
+ bus->pollrate = (uint)int_val;
+ bus->poll = (bus->pollrate != 0);
+ break;
+
+ case IOV_GVAL(IOV_IDLETIME):
+ int_val = bus->idletime;
+ bcopy(&int_val, arg, val_size);
+ break;
+
+ case IOV_SVAL(IOV_IDLETIME):
+ if ((int_val < 0) && (int_val != DHD_IDLE_IMMEDIATE)) {
+ bcmerror = BCME_BADARG;
+ } else {
+ bus->idletime = int_val;
+ }
+ break;
+
+ case IOV_GVAL(IOV_IDLECLOCK):
+ int_val = (int32)bus->idleclock;
+ bcopy(&int_val, arg, val_size);
+ break;
+
+ case IOV_SVAL(IOV_IDLECLOCK):
+ bus->idleclock = int_val;
+ break;
+
+ case IOV_GVAL(IOV_SD1IDLE):
+ int_val = (int32)sd1idle;
+ bcopy(&int_val, arg, val_size);
+ break;
+
+ case IOV_SVAL(IOV_SD1IDLE):
+ sd1idle = bool_val;
+ break;
+
+
+ case IOV_SVAL(IOV_MEMBYTES):
+ case IOV_GVAL(IOV_MEMBYTES):
+ {
+ uint32 address;
+ uint size, dsize;
+ uint8 *data;
+
+ bool set = (actionid == IOV_SVAL(IOV_MEMBYTES));
+
+ ASSERT(plen >= 2*sizeof(int));
+
+ address = (uint32)int_val;
+ bcopy((char *)params + sizeof(int_val), &int_val, sizeof(int_val));
+ size = (uint)int_val;
+
+ /* Do some validation */
+ dsize = set ? plen - (2 * sizeof(int)) : len;
+ if (dsize < size) {
+ DHD_ERROR(("%s: error on %s membytes, addr 0x%08x size %d dsize %d\n",
+ __FUNCTION__, (set ? "set" : "get"), address, size, dsize));
+ bcmerror = BCME_BADARG;
+ break;
+ }
+
+ DHD_INFO(("%s: Request to %s %d bytes at address 0x%08x\n", __FUNCTION__,
+ (set ? "write" : "read"), size, address));
+
+ /* If we know about SOCRAM, check for a fit */
+ if ((bus->orig_ramsize) &&
+ ((address > bus->orig_ramsize) || (address + size > bus->orig_ramsize))) {
+ DHD_ERROR(("%s: ramsize 0x%08x doesn't have %d bytes at 0x%08x\n",
+ __FUNCTION__, bus->orig_ramsize, size, address));
+ bcmerror = BCME_BADARG;
+ break;
+ }
+
+ /* Generate the actual data pointer */
+ data = set ? (uint8*)params + 2 * sizeof(int): (uint8*)arg;
+
+ /* Call to do the transfer */
+ bcmerror = dhdsdio_membytes(bus, set, address, data, size);
+
+ break;
+ }
+
+ case IOV_GVAL(IOV_MEMSIZE):
+ int_val = (int32)bus->ramsize;
+ bcopy(&int_val, arg, val_size);
+ break;
+
+ case IOV_GVAL(IOV_SDIOD_DRIVE):
+ int_val = (int32)dhd_sdiod_drive_strength;
+ bcopy(&int_val, arg, val_size);
+ break;
+
+ case IOV_SVAL(IOV_SDIOD_DRIVE):
+ dhd_sdiod_drive_strength = int_val;
+ si_sdiod_drive_strength_init(bus->sih, bus->dhd->osh, dhd_sdiod_drive_strength);
+ break;
+
+ case IOV_SVAL(IOV_DOWNLOAD):
+ bcmerror = dhdsdio_download_state(bus, bool_val);
+ break;
+
+ case IOV_SVAL(IOV_VARS):
+ bcmerror = dhdsdio_downloadvars(bus, arg, len);
+ break;
+
+ case IOV_GVAL(IOV_READAHEAD):
+ int_val = (int32)dhd_readahead;
+ bcopy(&int_val, arg, val_size);
+ break;
+
+ case IOV_SVAL(IOV_READAHEAD):
+ if (bool_val && !dhd_readahead)
+ bus->nextlen = 0;
+ dhd_readahead = bool_val;
+ break;
+
+ case IOV_GVAL(IOV_SDRXCHAIN):
+ int_val = (int32)bus->use_rxchain;
+ bcopy(&int_val, arg, val_size);
+ break;
+
+ case IOV_SVAL(IOV_SDRXCHAIN):
+ if (bool_val && !bus->sd_rxchain)
+ bcmerror = BCME_UNSUPPORTED;
+ else
+ bus->use_rxchain = bool_val;
+ break;
+ case IOV_GVAL(IOV_ALIGNCTL):
+ int_val = (int32)dhd_alignctl;
+ bcopy(&int_val, arg, val_size);
+ break;
+
+ case IOV_SVAL(IOV_ALIGNCTL):
+ dhd_alignctl = bool_val;
+ break;
+
+ case IOV_GVAL(IOV_SDALIGN):
+ int_val = DHD_SDALIGN;
+ bcopy(&int_val, arg, val_size);
+ break;
+
+#ifdef DHD_DEBUG
+ case IOV_GVAL(IOV_VARS):
+ if (bus->varsz < (uint)len)
+ bcopy(bus->vars, arg, bus->varsz);
+ else
+ bcmerror = BCME_BUFTOOSHORT;
+ break;
+#endif /* DHD_DEBUG */
+
+#ifdef DHD_DEBUG
+ case IOV_GVAL(IOV_SDREG):
+ {
+ sdreg_t *sd_ptr;
+ uint32 addr, size;
+
+ sd_ptr = (sdreg_t *)params;
+
+ addr = (uintptr)bus->regs + sd_ptr->offset;
+ size = sd_ptr->func;
+ int_val = (int32)bcmsdh_reg_read(bus->sdh, addr, size);
+ if (bcmsdh_regfail(bus->sdh))
+ bcmerror = BCME_SDIO_ERROR;
+ bcopy(&int_val, arg, sizeof(int32));
+ break;
+ }
+
+ case IOV_SVAL(IOV_SDREG):
+ {
+ sdreg_t *sd_ptr;
+ uint32 addr, size;
+
+ sd_ptr = (sdreg_t *)params;
+
+ addr = (uintptr)bus->regs + sd_ptr->offset;
+ size = sd_ptr->func;
+ bcmsdh_reg_write(bus->sdh, addr, size, sd_ptr->value);
+ if (bcmsdh_regfail(bus->sdh))
+ bcmerror = BCME_SDIO_ERROR;
+ break;
+ }
+
+ /* Same as above, but offset is not backplane (not SDIO core) */
+ case IOV_GVAL(IOV_SBREG):
+ {
+ sdreg_t sdreg;
+ uint32 addr, size;
+
+ bcopy(params, &sdreg, sizeof(sdreg));
+
+ addr = SI_ENUM_BASE + sdreg.offset;
+ size = sdreg.func;
+ int_val = (int32)bcmsdh_reg_read(bus->sdh, addr, size);
+ if (bcmsdh_regfail(bus->sdh))
+ bcmerror = BCME_SDIO_ERROR;
+ bcopy(&int_val, arg, sizeof(int32));
+ break;
+ }
+
+ case IOV_SVAL(IOV_SBREG):
+ {
+ sdreg_t sdreg;
+ uint32 addr, size;
+
+ bcopy(params, &sdreg, sizeof(sdreg));
+
+ addr = SI_ENUM_BASE + sdreg.offset;
+ size = sdreg.func;
+ bcmsdh_reg_write(bus->sdh, addr, size, sdreg.value);
+ if (bcmsdh_regfail(bus->sdh))
+ bcmerror = BCME_SDIO_ERROR;
+ break;
+ }
+
+ case IOV_GVAL(IOV_SDCIS):
+ {
+ *(char *)arg = 0;
+
+ bcmstrcat(arg, "\nFunc 0\n");
+ bcmsdh_cis_read(bus->sdh, 0x10, (uint8 *)arg + strlen(arg), SBSDIO_CIS_SIZE_LIMIT);
+ bcmstrcat(arg, "\nFunc 1\n");
+ bcmsdh_cis_read(bus->sdh, 0x11, (uint8 *)arg + strlen(arg), SBSDIO_CIS_SIZE_LIMIT);
+ bcmstrcat(arg, "\nFunc 2\n");
+ bcmsdh_cis_read(bus->sdh, 0x12, (uint8 *)arg + strlen(arg), SBSDIO_CIS_SIZE_LIMIT);
+ break;
+ }
+
+ case IOV_GVAL(IOV_FORCEEVEN):
+ int_val = (int32)forcealign;
+ bcopy(&int_val, arg, val_size);
+ break;
+
+ case IOV_SVAL(IOV_FORCEEVEN):
+ forcealign = bool_val;
+ break;
+
+ case IOV_GVAL(IOV_TXBOUND):
+ int_val = (int32)dhd_txbound;
+ bcopy(&int_val, arg, val_size);
+ break;
+
+ case IOV_SVAL(IOV_TXBOUND):
+ dhd_txbound = (uint)int_val;
+ break;
+
+ case IOV_GVAL(IOV_RXBOUND):
+ int_val = (int32)dhd_rxbound;
+ bcopy(&int_val, arg, val_size);
+ break;
+
+ case IOV_SVAL(IOV_RXBOUND):
+ dhd_rxbound = (uint)int_val;
+ break;
+
+ case IOV_GVAL(IOV_TXMINMAX):
+ int_val = (int32)dhd_txminmax;
+ bcopy(&int_val, arg, val_size);
+ break;
+
+ case IOV_SVAL(IOV_TXMINMAX):
+ dhd_txminmax = (uint)int_val;
+ break;
+
+
+
+#endif /* DHD_DEBUG */
+
+
+#ifdef SDTEST
+ case IOV_GVAL(IOV_EXTLOOP):
+ int_val = (int32)bus->ext_loop;
+ bcopy(&int_val, arg, val_size);
+ break;
+
+ case IOV_SVAL(IOV_EXTLOOP):
+ bus->ext_loop = bool_val;
+ break;
+
+ case IOV_GVAL(IOV_PKTGEN):
+ bcmerror = dhdsdio_pktgen_get(bus, arg);
+ break;
+
+ case IOV_SVAL(IOV_PKTGEN):
+ bcmerror = dhdsdio_pktgen_set(bus, arg);
+ break;
+#endif /* SDTEST */
+
+
+ case IOV_SVAL(IOV_DEVRESET):
+ DHD_TRACE(("%s: Called set IOV_DEVRESET=%d dongle_reset=%d busstate=%d\n",
+ __FUNCTION__, bool_val, bus->dhd->dongle_reset,
+ bus->dhd->busstate));
+
+ ASSERT(bus->dhd->osh);
+ /* ASSERT(bus->cl_devid); */
+
+ dhd_bus_devreset(bus->dhd, (uint8)bool_val);
+
+ break;
+
+ case IOV_GVAL(IOV_DEVRESET):
+ DHD_TRACE(("%s: Called get IOV_DEVRESET\n", __FUNCTION__));
+
+ /* Get its status */
+ int_val = (bool) bus->dhd->dongle_reset;
+ bcopy(&int_val, arg, val_size);
+
+ break;
+
+ default:
+ bcmerror = BCME_UNSUPPORTED;
+ break;
+ }
+
+exit:
+ if ((bus->idletime == DHD_IDLE_IMMEDIATE) && !bus->dpc_sched) {
+ bus->activity = FALSE;
+ dhdsdio_clkctl(bus, CLK_NONE, TRUE);
+ }
+
+ dhd_os_sdunlock(bus->dhd);
+
+ if (actionid == IOV_SVAL(IOV_DEVRESET) && bool_val == FALSE)
+ dhd_preinit_ioctls((dhd_pub_t *) bus->dhd);
+
+ return bcmerror;
+}
+
+static int
+dhdsdio_write_vars(dhd_bus_t *bus)
+{
+ int bcmerror = 0;
+ uint32 varsize;
+ uint32 varaddr;
+ uint8 *vbuffer;
+ uint32 varsizew;
+#ifdef DHD_DEBUG
+ char *nvram_ularray;
+#endif /* DHD_DEBUG */
+
+ /* Even if there are no vars are to be written, we still need to set the ramsize. */
+ varsize = bus->varsz ? ROUNDUP(bus->varsz, 4) : 0;
+ varaddr = (bus->ramsize - 4) - varsize;
+
+ if (bus->vars) {
+ vbuffer = (uint8 *)MALLOC(bus->dhd->osh, varsize);
+ if (!vbuffer)
+ return BCME_NOMEM;
+
+ bzero(vbuffer, varsize);
+ bcopy(bus->vars, vbuffer, bus->varsz);
+
+ /* Write the vars list */
+ bcmerror = dhdsdio_membytes(bus, TRUE, varaddr, vbuffer, varsize);
+#ifdef DHD_DEBUG
+ /* Verify NVRAM bytes */
+ DHD_INFO(("Compare NVRAM dl & ul; varsize=%d\n", varsize));
+ nvram_ularray = (char*)MALLOC(bus->dhd->osh, varsize);
+ if (!nvram_ularray)
+ return BCME_NOMEM;
+
+ /* Upload image to verify downloaded contents. */
+ memset(nvram_ularray, 0xaa, varsize);
+
+ /* Read the vars list to temp buffer for comparison */
+ bcmerror = dhdsdio_membytes(bus, FALSE, varaddr, nvram_ularray, varsize);
+ if (bcmerror) {
+ DHD_ERROR(("%s: error %d on reading %d nvram bytes at 0x%08x\n",
+ __FUNCTION__, bcmerror, varsize, varaddr));
+ }
+ /* Compare the org NVRAM with the one read from RAM */
+ if (memcmp(vbuffer, nvram_ularray, varsize)) {
+ DHD_ERROR(("%s: Downloaded NVRAM image is corrupted.\n", __FUNCTION__));
+ } else
+ DHD_ERROR(("%s: Download, Upload and compare of NVRAM succeeded.\n",
+ __FUNCTION__));
+
+ MFREE(bus->dhd->osh, nvram_ularray, varsize);
+#endif /* DHD_DEBUG */
+
+ MFREE(bus->dhd->osh, vbuffer, varsize);
+ }
+
+ /* adjust to the user specified RAM */
+ DHD_INFO(("Physical memory size: %d, usable memory size: %d\n",
+ bus->orig_ramsize, bus->ramsize));
+ DHD_INFO(("Vars are at %d, orig varsize is %d\n",
+ varaddr, varsize));
+ varsize = ((bus->orig_ramsize - 4) - varaddr);
+
+ /*
+ * Determine the length token:
+ * Varsize, converted to words, in lower 16-bits, checksum in upper 16-bits.
+ */
+ if (bcmerror) {
+ varsizew = 0;
+ } else {
+ varsizew = varsize / 4;
+ varsizew = (~varsizew << 16) | (varsizew & 0x0000FFFF);
+ varsizew = htol32(varsizew);
+ }
+
+ DHD_INFO(("New varsize is %d, length token=0x%08x\n", varsize, varsizew));
+
+ /* Write the length token to the last word */
+ bcmerror = dhdsdio_membytes(bus, TRUE, (bus->orig_ramsize - 4),
+ (uint8*)&varsizew, 4);
+
+ return bcmerror;
+}
+
+static int
+dhdsdio_download_state(dhd_bus_t *bus, bool enter)
+{
+ uint retries;
+ int bcmerror = 0;
+
+ /* To enter download state, disable ARM and reset SOCRAM.
+ * To exit download state, simply reset ARM (default is RAM boot).
+ */
+ if (enter) {
+
+ bus->alp_only = TRUE;
+
+ if (!(si_setcore(bus->sih, ARM7S_CORE_ID, 0)) &&
+ !(si_setcore(bus->sih, ARMCM3_CORE_ID, 0))) {
+ DHD_ERROR(("%s: Failed to find ARM core!\n", __FUNCTION__));
+ bcmerror = BCME_ERROR;
+ goto fail;
+ }
+
+ si_core_disable(bus->sih, 0);
+ if (bcmsdh_regfail(bus->sdh)) {
+ bcmerror = BCME_SDIO_ERROR;
+ goto fail;
+ }
+
+ if (!(si_setcore(bus->sih, SOCRAM_CORE_ID, 0))) {
+ DHD_ERROR(("%s: Failed to find SOCRAM core!\n", __FUNCTION__));
+ bcmerror = BCME_ERROR;
+ goto fail;
+ }
+
+ si_core_reset(bus->sih, 0, 0);
+ if (bcmsdh_regfail(bus->sdh)) {
+ DHD_ERROR(("%s: Failure trying reset SOCRAM core?\n", __FUNCTION__));
+ bcmerror = BCME_SDIO_ERROR;
+ goto fail;
+ }
+
+ /* Clear the top bit of memory */
+ if (bus->ramsize) {
+ uint32 zeros = 0;
+ dhdsdio_membytes(bus, TRUE, bus->ramsize - 4, (uint8*)&zeros, 4);
+ }
+ } else {
+ if (!(si_setcore(bus->sih, SOCRAM_CORE_ID, 0))) {
+ DHD_ERROR(("%s: Failed to find SOCRAM core!\n", __FUNCTION__));
+ bcmerror = BCME_ERROR;
+ goto fail;
+ }
+
+ if (!si_iscoreup(bus->sih)) {
+ DHD_ERROR(("%s: SOCRAM core is down after reset?\n", __FUNCTION__));
+ bcmerror = BCME_ERROR;
+ goto fail;
+ }
+
+ if ((bcmerror = dhdsdio_write_vars(bus))) {
+ DHD_ERROR(("%s: no vars written to RAM\n", __FUNCTION__));
+ bcmerror = 0;
+ }
+
+ if (!si_setcore(bus->sih, PCMCIA_CORE_ID, 0) &&
+ !si_setcore(bus->sih, SDIOD_CORE_ID, 0)) {
+ DHD_ERROR(("%s: Can't change back to SDIO core?\n", __FUNCTION__));
+ bcmerror = BCME_ERROR;
+ goto fail;
+ }
+ W_SDREG(0xFFFFFFFF, &bus->regs->intstatus, retries);
+
+
+ if (!(si_setcore(bus->sih, ARM7S_CORE_ID, 0)) &&
+ !(si_setcore(bus->sih, ARMCM3_CORE_ID, 0))) {
+ DHD_ERROR(("%s: Failed to find ARM core!\n", __FUNCTION__));
+ bcmerror = BCME_ERROR;
+ goto fail;
+ }
+
+ si_core_reset(bus->sih, 0, 0);
+ if (bcmsdh_regfail(bus->sdh)) {
+ DHD_ERROR(("%s: Failure trying to reset ARM core?\n", __FUNCTION__));
+ bcmerror = BCME_SDIO_ERROR;
+ goto fail;
+ }
+
+ /* Allow HT Clock now that the ARM is running. */
+ bus->alp_only = FALSE;
+
+ bus->dhd->busstate = DHD_BUS_LOAD;
+ }
+
+fail:
+ /* Always return to SDIOD core */
+ if (!si_setcore(bus->sih, PCMCIA_CORE_ID, 0))
+ si_setcore(bus->sih, SDIOD_CORE_ID, 0);
+
+ return bcmerror;
+}
+
+int
+dhd_bus_iovar_op(dhd_pub_t *dhdp, const char *name,
+ void *params, int plen, void *arg, int len, bool set)
+{
+ dhd_bus_t *bus = dhdp->bus;
+ const bcm_iovar_t *vi = NULL;
+ int bcmerror = 0;
+ int val_size;
+ uint32 actionid;
+
+ DHD_TRACE(("%s: Enter\n", __FUNCTION__));
+
+ ASSERT(name);
+ ASSERT(len >= 0);
+
+ /* Get MUST have return space */
+ ASSERT(set || (arg && len));
+
+ /* Set does NOT take qualifiers */
+ ASSERT(!set || (!params && !plen));
+
+ /* Look up var locally; if not found pass to host driver */
+ if ((vi = bcm_iovar_lookup(dhdsdio_iovars, name)) == NULL) {
+ dhd_os_sdlock(bus->dhd);
+
+ BUS_WAKE(bus);
+
+ /* Turn on clock in case SD command needs backplane */
+ dhdsdio_clkctl(bus, CLK_AVAIL, FALSE);
+
+ bcmerror = bcmsdh_iovar_op(bus->sdh, name, params, plen, arg, len, set);
+
+ /* Check for bus configuration changes of interest */
+
+ /* If it was divisor change, read the new one */
+ if (set && strcmp(name, "sd_divisor") == 0) {
+ if (bcmsdh_iovar_op(bus->sdh, "sd_divisor", NULL, 0,
+ &bus->sd_divisor, sizeof(int32), FALSE) != BCME_OK) {
+ bus->sd_divisor = -1;
+ DHD_ERROR(("%s: fail on %s get\n", __FUNCTION__, name));
+ } else {
+ DHD_INFO(("%s: noted %s update, value now %d\n",
+ __FUNCTION__, name, bus->sd_divisor));
+ }
+ }
+ /* If it was a mode change, read the new one */
+ if (set && strcmp(name, "sd_mode") == 0) {
+ if (bcmsdh_iovar_op(bus->sdh, "sd_mode", NULL, 0,
+ &bus->sd_mode, sizeof(int32), FALSE) != BCME_OK) {
+ bus->sd_mode = -1;
+ DHD_ERROR(("%s: fail on %s get\n", __FUNCTION__, name));
+ } else {
+ DHD_INFO(("%s: noted %s update, value now %d\n",
+ __FUNCTION__, name, bus->sd_mode));
+ }
+ }
+ /* Similar check for blocksize change */
+ if (set && strcmp(name, "sd_blocksize") == 0) {
+ int32 fnum = 2;
+ if (bcmsdh_iovar_op(bus->sdh, "sd_blocksize", &fnum, sizeof(int32),
+ &bus->blocksize, sizeof(int32), FALSE) != BCME_OK) {
+ bus->blocksize = 0;
+ DHD_ERROR(("%s: fail on %s get\n", __FUNCTION__, "sd_blocksize"));
+ } else {
+ DHD_INFO(("%s: noted %s update, value now %d\n",
+ __FUNCTION__, "sd_blocksize", bus->blocksize));
+ }
+ }
+ bus->roundup = MIN(max_roundup, bus->blocksize);
+
+ if ((bus->idletime == DHD_IDLE_IMMEDIATE) && !bus->dpc_sched) {
+ bus->activity = FALSE;
+ dhdsdio_clkctl(bus, CLK_NONE, TRUE);
+ }
+
+ dhd_os_sdunlock(bus->dhd);
+ goto exit;
+ }
+
+ DHD_CTL(("%s: %s %s, len %d plen %d\n", __FUNCTION__,
+ name, (set ? "set" : "get"), len, plen));
+
+ /* set up 'params' pointer in case this is a set command so that
+ * the convenience int and bool code can be common to set and get
+ */
+ if (params == NULL) {
+ params = arg;
+ plen = len;
+ }
+
+ if (vi->type == IOVT_VOID)
+ val_size = 0;
+ else if (vi->type == IOVT_BUFFER)
+ val_size = len;
+ else
+ /* all other types are integer sized */
+ val_size = sizeof(int);
+
+ actionid = set ? IOV_SVAL(vi->varid) : IOV_GVAL(vi->varid);
+ bcmerror = dhdsdio_doiovar(bus, vi, actionid, name, params, plen, arg, len, val_size);
+
+exit:
+ return bcmerror;
+}
+
+void
+dhd_bus_stop(struct dhd_bus *bus, bool enforce_mutex)
+{
+ osl_t *osh = bus->dhd->osh;
+ uint32 local_hostintmask;
+ uint8 saveclk;
+ uint retries;
+ int err;
+
+ DHD_TRACE(("%s: Enter\n", __FUNCTION__));
+
+ if (enforce_mutex)
+ dhd_os_sdlock(bus->dhd);
+
+ BUS_WAKE(bus);
+
+ /* Enable clock for device interrupts */
+ dhdsdio_clkctl(bus, CLK_AVAIL, FALSE);
+
+ /* Disable and clear interrupts at the chip level also */
+ W_SDREG(0, &bus->regs->hostintmask, retries);
+ local_hostintmask = bus->hostintmask;
+ bus->hostintmask = 0;
+
+ /* Change our idea of bus state */
+ bus->dhd->busstate = DHD_BUS_DOWN;
+
+ /* Force clocks on backplane to be sure F2 interrupt propagates */
+ saveclk = bcmsdh_cfg_read(bus->sdh, SDIO_FUNC_1, SBSDIO_FUNC1_CHIPCLKCSR, &err);
+ if (!err) {
+ bcmsdh_cfg_write(bus->sdh, SDIO_FUNC_1, SBSDIO_FUNC1_CHIPCLKCSR,
+ (saveclk | SBSDIO_FORCE_HT), &err);
+ }
+ if (err) {
+ DHD_ERROR(("%s: Failed to force clock for F2: err %d\n", __FUNCTION__, err));
+ }
+
+ /* Turn off the bus (F2), free any pending packets */
+ DHD_INTR(("%s: disable SDIO interrupts\n", __FUNCTION__));
+ bcmsdh_intr_disable(bus->sdh);
+ bcmsdh_cfg_write(bus->sdh, SDIO_FUNC_0, SDIOD_CCCR_IOEN, SDIO_FUNC_ENABLE_1, NULL);
+
+ /* Clear any pending interrupts now that F2 is disabled */
+ W_SDREG(local_hostintmask, &bus->regs->intstatus, retries);
+
+ /* Turn off the backplane clock (only) */
+ dhdsdio_clkctl(bus, CLK_SDONLY, FALSE);
+
+ /* Clear the data packet queues */
+ pktq_flush(osh, &bus->txq, TRUE);
+
+ /* Clear any held glomming stuff */
+ if (bus->glomd)
+ PKTFREE(osh, bus->glomd, FALSE);
+
+ if (bus->glom)
+ PKTFREE(osh, bus->glom, FALSE);
+
+ bus->glom = bus->glomd = NULL;
+
+ /* Clear rx control and wake any waiters */
+ bus->rxlen = 0;
+ dhd_os_ioctl_resp_wake(bus->dhd);
+
+ /* Reset some F2 state stuff */
+ bus->rxskip = FALSE;
+ bus->tx_seq = bus->rx_seq = 0;
+
+ if (enforce_mutex)
+ dhd_os_sdunlock(bus->dhd);
+}
+
+int
+dhd_bus_init(dhd_pub_t *dhdp, bool enforce_mutex)
+{
+ dhd_bus_t *bus = dhdp->bus;
+ dhd_timeout_t tmo;
+ uint retries = 0;
+ uint8 ready, enable;
+ int err, ret = 0;
+ uint8 saveclk;
+
+ DHD_TRACE(("%s: Enter\n", __FUNCTION__));
+
+ ASSERT(bus->dhd);
+ if (!bus->dhd)
+ return 0;
+
+ if (enforce_mutex)
+ dhd_os_sdlock(bus->dhd);
+
+ /* Make sure backplane clock is on, needed to generate F2 interrupt */
+ dhdsdio_clkctl(bus, CLK_AVAIL, FALSE);
+ if (bus->clkstate != CLK_AVAIL)
+ goto exit;
+
+
+ /* Force clocks on backplane to be sure F2 interrupt propagates */
+ saveclk = bcmsdh_cfg_read(bus->sdh, SDIO_FUNC_1, SBSDIO_FUNC1_CHIPCLKCSR, &err);
+ if (!err) {
+ bcmsdh_cfg_write(bus->sdh, SDIO_FUNC_1, SBSDIO_FUNC1_CHIPCLKCSR,
+ (saveclk | SBSDIO_FORCE_HT), &err);
+ }
+ if (err) {
+ DHD_ERROR(("%s: Failed to force clock for F2: err %d\n", __FUNCTION__, err));
+ goto exit;
+ }
+
+ /* Enable function 2 (frame transfers) */
+ W_SDREG((SDPCM_PROT_VERSION << SMB_DATA_VERSION_SHIFT),
+ &bus->regs->tosbmailboxdata, retries);
+ enable = (SDIO_FUNC_ENABLE_1 | SDIO_FUNC_ENABLE_2);
+
+ bcmsdh_cfg_write(bus->sdh, SDIO_FUNC_0, SDIOD_CCCR_IOEN, enable, NULL);
+
+ /* Give the dongle some time to do its thing and set IOR2 */
+ dhd_timeout_start(&tmo, DHD_WAIT_F2RDY * 1000);
+
+ ready = 0;
+ while (ready != enable && !dhd_timeout_expired(&tmo))
+ ready = bcmsdh_cfg_read(bus->sdh, SDIO_FUNC_0, SDIOD_CCCR_IORDY, NULL);
+
+
+ DHD_INFO(("%s: enable 0x%02x, ready 0x%02x (waited %uus)\n",
+ __FUNCTION__, enable, ready, tmo.elapsed));
+
+
+ /* If F2 successfully enabled, set core and enable interrupts */
+ if (ready == enable) {
+ /* Make sure we're talking to the core. */
+ if (!(bus->regs = si_setcore(bus->sih, PCMCIA_CORE_ID, 0)))
+ bus->regs = si_setcore(bus->sih, SDIOD_CORE_ID, 0);
+
+ /* Set up the interrupt mask and enable interrupts */
+ bus->hostintmask = HOSTINTMASK;
+ W_SDREG(bus->hostintmask, &bus->regs->hostintmask, retries);
+
+ bcmsdh_cfg_write(bus->sdh, SDIO_FUNC_1, SBSDIO_WATERMARK, (uint8)watermark, &err);
+
+ /* Set bus state according to enable result */
+ dhdp->busstate = DHD_BUS_DATA;
+
+ /* bcmsdh_intr_unmask(bus->sdh); */
+
+ bus->intdis = FALSE;
+ if (bus->intr) {
+ DHD_INTR(("%s: enable SDIO device interrupts\n", __FUNCTION__));
+ bcmsdh_intr_enable(bus->sdh);
+ } else {
+ DHD_INTR(("%s: disable SDIO interrupts\n", __FUNCTION__));
+ bcmsdh_intr_disable(bus->sdh);
+ }
+
+ }
+
+
+ else {
+ /* Disable F2 again */
+ enable = SDIO_FUNC_ENABLE_1;
+ bcmsdh_cfg_write(bus->sdh, SDIO_FUNC_0, SDIOD_CCCR_IOEN, enable, NULL);
+ }
+
+ /* Restore previous clock setting */
+ bcmsdh_cfg_write(bus->sdh, SDIO_FUNC_1, SBSDIO_FUNC1_CHIPCLKCSR, saveclk, &err);
+
+
+ /* If we didn't come up, turn off backplane clock */
+ if (dhdp->busstate != DHD_BUS_DATA)
+ dhdsdio_clkctl(bus, CLK_NONE, FALSE);
+
+exit:
+ if (enforce_mutex)
+ dhd_os_sdunlock(bus->dhd);
+
+ return ret;
+}
+
+static void
+dhdsdio_rxfail(dhd_bus_t *bus, bool abort, bool rtx)
+{
+ bcmsdh_info_t *sdh = bus->sdh;
+ sdpcmd_regs_t *regs = bus->regs;
+ uint retries = 0;
+ uint16 lastrbc;
+ uint8 hi, lo;
+ int err;
+
+ DHD_ERROR(("%s: %sterminate frame%s\n", __FUNCTION__,
+ (abort ? "abort command, " : ""), (rtx ? ", send NAK" : "")));
+
+ if (abort) {
+ bcmsdh_abort(sdh, SDIO_FUNC_2);
+ }
+
+ bcmsdh_cfg_write(sdh, SDIO_FUNC_1, SBSDIO_FUNC1_FRAMECTRL, SFC_RF_TERM, &err);
+ bus->f1regdata++;
+
+ /* Wait until the packet has been flushed (device/FIFO stable) */
+ for (lastrbc = retries = 0xffff; retries > 0; retries--) {
+ hi = bcmsdh_cfg_read(sdh, SDIO_FUNC_1, SBSDIO_FUNC1_RFRAMEBCHI, NULL);
+ lo = bcmsdh_cfg_read(sdh, SDIO_FUNC_1, SBSDIO_FUNC1_RFRAMEBCLO, NULL);
+ bus->f1regdata += 2;
+
+ if ((hi == 0) && (lo == 0))
+ break;
+
+ if ((hi > (lastrbc >> 8)) && (lo > (lastrbc & 0x00ff))) {
+ DHD_ERROR(("%s: count growing: last 0x%04x now 0x%04x\n",
+ __FUNCTION__, lastrbc, ((hi << 8) + lo)));
+ }
+ lastrbc = (hi << 8) + lo;
+ }
+
+ if (!retries) {
+ DHD_ERROR(("%s: count never zeroed: last 0x%04x\n", __FUNCTION__, lastrbc));
+ } else {
+ DHD_INFO(("%s: flush took %d iterations\n", __FUNCTION__, (0xffff - retries)));
+ }
+
+ if (rtx) {
+ bus->rxrtx++;
+ W_SDREG(SMB_NAK, ®s->tosbmailbox, retries);
+ bus->f1regdata++;
+ if (retries <= retry_limit) {
+ bus->rxskip = TRUE;
+ }
+ }
+
+ /* Clear partial in any case */
+ bus->nextlen = 0;
+
+ /* If we can't reach the device, signal failure */
+ if (err || bcmsdh_regfail(sdh))
+ bus->dhd->busstate = DHD_BUS_DOWN;
+}
+
+static void
+dhdsdio_read_control(dhd_bus_t *bus, uint8 *hdr, uint len, uint doff)
+{
+ bcmsdh_info_t *sdh = bus->sdh;
+ uint rdlen, pad;
+
+ int sdret;
+
+ DHD_TRACE(("%s: Enter\n", __FUNCTION__));
+
+ /* Control data already received in aligned rxctl */
+ if ((bus->bus == SPI_BUS) && (!bus->usebufpool))
+ goto gotpkt;
+
+ ASSERT(bus->rxbuf);
+ /* Set rxctl for frame (w/optional alignment) */
+ bus->rxctl = bus->rxbuf;
+ if (dhd_alignctl) {
+ bus->rxctl += firstread;
+ if ((pad = ((uintptr)bus->rxctl % DHD_SDALIGN)))
+ bus->rxctl += (DHD_SDALIGN - pad);
+ bus->rxctl -= firstread;
+ }
+ ASSERT(bus->rxctl >= bus->rxbuf);
+
+ /* Copy the already-read portion over */
+ bcopy(hdr, bus->rxctl, firstread);
+ if (len <= firstread)
+ goto gotpkt;
+
+ /* Copy the full data pkt in gSPI case and process ioctl. */
+ if (bus->bus == SPI_BUS) {
+ bcopy(hdr, bus->rxctl, len);
+ goto gotpkt;
+ }
+
+ /* Raise rdlen to next SDIO block to avoid tail command */
+ rdlen = len - firstread;
+ if (bus->roundup && bus->blocksize && (rdlen > bus->blocksize)) {
+ pad = bus->blocksize - (rdlen % bus->blocksize);
+ if ((pad <= bus->roundup) && (pad < bus->blocksize) &&
+ ((len + pad) < bus->dhd->maxctl))
+ rdlen += pad;
+ } else if (rdlen % DHD_SDALIGN) {
+ rdlen += DHD_SDALIGN - (rdlen % DHD_SDALIGN);
+ }
+
+ /* Satisfy length-alignment requirements */
+ if (forcealign && (rdlen & (ALIGNMENT - 1)))
+ rdlen = ROUNDUP(rdlen, ALIGNMENT);
+
+ /* Drop if the read is too big or it exceeds our maximum */
+ if ((rdlen + firstread) > bus->dhd->maxctl) {
+ DHD_ERROR(("%s: %d-byte control read exceeds %d-byte buffer\n",
+ __FUNCTION__, rdlen, bus->dhd->maxctl));
+ bus->dhd->rx_errors++;
+ dhdsdio_rxfail(bus, FALSE, FALSE);
+ goto done;
+ }
+
+ if ((len - doff) > bus->dhd->maxctl) {
+ DHD_ERROR(("%s: %d-byte ctl frame (%d-byte ctl data) exceeds %d-byte limit\n",
+ __FUNCTION__, len, (len - doff), bus->dhd->maxctl));
+ bus->dhd->rx_errors++; bus->rx_toolong++;
+ dhdsdio_rxfail(bus, FALSE, FALSE);
+ goto done;
+ }
+
+
+ /* Read remainder of frame body into the rxctl buffer */
+ sdret = dhd_bcmsdh_recv_buf(bus, bcmsdh_cur_sbwad(sdh), SDIO_FUNC_2, F2SYNC,
+ (bus->rxctl + firstread), rdlen, NULL, NULL, NULL);
+ bus->f2rxdata++;
+ ASSERT(sdret != BCME_PENDING);
+
+ /* Control frame failures need retransmission */
+ if (sdret < 0) {
+ DHD_ERROR(("%s: read %d control bytes failed: %d\n", __FUNCTION__, rdlen, sdret));
+ bus->rxc_errors++; /* dhd.rx_ctlerrs is higher level */
+ dhdsdio_rxfail(bus, TRUE, TRUE);
+ goto done;
+ }
+
+gotpkt:
+
+#ifdef DHD_DEBUG
+ if (DHD_BYTES_ON() && DHD_CTL_ON()) {
+ prhex("RxCtrl", bus->rxctl, len);
+ }
+#endif
+
+ /* Point to valid data and indicate its length */
+ bus->rxctl += doff;
+ bus->rxlen = len - doff;
+
+done:
+ /* Awake any waiters */
+ dhd_os_ioctl_resp_wake(bus->dhd);
+}
+
+static uint8
+dhdsdio_rxglom(dhd_bus_t *bus, uint8 rxseq)
+{
+ uint16 dlen, totlen;
+ uint8 *dptr, num = 0;
+
+ uint16 sublen, check;
+ void *pfirst, *plast, *pnext, *save_pfirst;
+ osl_t *osh = bus->dhd->osh;
+
+ int errcode;
+ uint8 chan, seq, doff, sfdoff;
+ uint8 txmax;
+
+ int ifidx = 0;
+ bool usechain = bus->use_rxchain;
+
+ /* If packets, issue read(s) and send up packet chain */
+ /* Return sequence numbers consumed? */
+
+ DHD_TRACE(("dhdsdio_rxglom: start: glomd %p glom %p\n", bus->glomd, bus->glom));
+
+ /* If there's a descriptor, generate the packet chain */
+ if (bus->glomd) {
+ dhd_os_sdlock_rxq(bus->dhd);
+
+ pfirst = plast = pnext = NULL;
+ dlen = (uint16)PKTLEN(osh, bus->glomd);
+ dptr = PKTDATA(osh, bus->glomd);
+ if (!dlen || (dlen & 1)) {
+ DHD_ERROR(("%s: bad glomd len (%d), ignore descriptor\n",
+ __FUNCTION__, dlen));
+ dlen = 0;
+ }
+
+ for (totlen = num = 0; dlen; num++) {
+ /* Get (and move past) next length */
+ sublen = ltoh16_ua(dptr);
+ dlen -= sizeof(uint16);
+ dptr += sizeof(uint16);
+ if ((sublen < SDPCM_HDRLEN) ||
+ ((num == 0) && (sublen < (2 * SDPCM_HDRLEN)))) {
+ DHD_ERROR(("%s: descriptor len %d bad: %d\n",
+ __FUNCTION__, num, sublen));
+ pnext = NULL;
+ break;
+ }
+ if (sublen % DHD_SDALIGN) {
+ DHD_ERROR(("%s: sublen %d not a multiple of %d\n",
+ __FUNCTION__, sublen, DHD_SDALIGN));
+ usechain = FALSE;
+ }
+ totlen += sublen;
+
+ /* For last frame, adjust read len so total is a block multiple */
+ if (!dlen) {
+ sublen += (ROUNDUP(totlen, bus->blocksize) - totlen);
+ totlen = ROUNDUP(totlen, bus->blocksize);
+ }
+
+ /* Allocate/chain packet for next subframe */
+ if ((pnext = PKTGET(osh, sublen + DHD_SDALIGN, FALSE)) == NULL) {
+ DHD_ERROR(("%s: PKTGET failed, num %d len %d\n",
+ __FUNCTION__, num, sublen));
+ break;
+ }
+ ASSERT(!PKTLINK(pnext));
+ if (!pfirst) {
+ ASSERT(!plast);
+ pfirst = plast = pnext;
+ } else {
+ ASSERT(plast);
+ PKTSETNEXT(osh, plast, pnext);
+ plast = pnext;
+ }
+
+ /* Adhere to start alignment requirements */
+ PKTALIGN(osh, pnext, sublen, DHD_SDALIGN);
+ }
+
+ /* If all allocations succeeded, save packet chain in bus structure */
+ if (pnext) {
+ DHD_GLOM(("%s: allocated %d-byte packet chain for %d subframes\n",
+ __FUNCTION__, totlen, num));
+ if (DHD_GLOM_ON() && bus->nextlen) {
+ if (totlen != bus->nextlen) {
+ DHD_GLOM(("%s: glomdesc mismatch: nextlen %d glomdesc %d "
+ "rxseq %d\n", __FUNCTION__, bus->nextlen,
+ totlen, rxseq));
+ }
+ }
+ bus->glom = pfirst;
+ pfirst = pnext = NULL;
+ } else {
+ if (pfirst)
+ PKTFREE(osh, pfirst, FALSE);
+ bus->glom = NULL;
+ num = 0;
+ }
+
+ /* Done with descriptor packet */
+ PKTFREE(osh, bus->glomd, FALSE);
+ bus->glomd = NULL;
+ bus->nextlen = 0;
+
+ dhd_os_sdunlock_rxq(bus->dhd);
+ }
+
+ /* Ok -- either we just generated a packet chain, or had one from before */
+ if (bus->glom) {
+ if (DHD_GLOM_ON()) {
+ DHD_GLOM(("%s: attempt superframe read, packet chain:\n", __FUNCTION__));
+ for (pnext = bus->glom; pnext; pnext = PKTNEXT(osh, pnext)) {
+ DHD_GLOM((" %p: %p len 0x%04x (%d)\n",
+ pnext, (uint8*)PKTDATA(osh, pnext),
+ PKTLEN(osh, pnext), PKTLEN(osh, pnext)));
+ }
+ }
+
+ pfirst = bus->glom;
+ dlen = (uint16)pkttotlen(osh, pfirst);
+
+ /* Do an SDIO read for the superframe. Configurable iovar to
+ * read directly into the chained packet, or allocate a large
+ * packet and and copy into the chain.
+ */
+ if (usechain) {
+ errcode = dhd_bcmsdh_recv_buf(bus,
+ bcmsdh_cur_sbwad(bus->sdh), SDIO_FUNC_2,
+ F2SYNC, (uint8*)PKTDATA(osh, pfirst),
+ dlen, pfirst, NULL, NULL);
+ } else if (bus->dataptr) {
+ errcode = dhd_bcmsdh_recv_buf(bus,
+ bcmsdh_cur_sbwad(bus->sdh), SDIO_FUNC_2,
+ F2SYNC, bus->dataptr,
+ dlen, NULL, NULL, NULL);
+ sublen = (uint16)pktfrombuf(osh, pfirst, 0, dlen, bus->dataptr);
+ if (sublen != dlen) {
+ DHD_ERROR(("%s: FAILED TO COPY, dlen %d sublen %d\n",
+ __FUNCTION__, dlen, sublen));
+ errcode = -1;
+ }
+ pnext = NULL;
+ } else {
+ DHD_ERROR(("COULDN'T ALLOC %d-BYTE GLOM, FORCE FAILURE\n", dlen));
+ errcode = -1;
+ }
+ bus->f2rxdata++;
+ ASSERT(errcode != BCME_PENDING);
+
+ /* On failure, kill the superframe, allow a couple retries */
+ if (errcode < 0) {
+ DHD_ERROR(("%s: glom read of %d bytes failed: %d\n",
+ __FUNCTION__, dlen, errcode));
+ bus->dhd->rx_errors++;
+
+ if (bus->glomerr++ < 3) {
+ dhdsdio_rxfail(bus, TRUE, TRUE);
+ } else {
+ bus->glomerr = 0;
+ dhdsdio_rxfail(bus, TRUE, FALSE);
+ dhd_os_sdlock_rxq(bus->dhd);
+ PKTFREE(osh, bus->glom, FALSE);
+ dhd_os_sdunlock_rxq(bus->dhd);
+ bus->rxglomfail++;
+ bus->glom = NULL;
+ }
+ return 0;
+ }
+
+#ifdef DHD_DEBUG
+ if (DHD_GLOM_ON()) {
+ prhex("SUPERFRAME", PKTDATA(osh, pfirst),
+ MIN(PKTLEN(osh, pfirst), 48));
+ }
+#endif
+
+
+ /* Validate the superframe header */
+ dptr = (uint8 *)PKTDATA(osh, pfirst);
+ sublen = ltoh16_ua(dptr);
+ check = ltoh16_ua(dptr + sizeof(uint16));
+
+ chan = SDPCM_PACKET_CHANNEL(&dptr[SDPCM_FRAMETAG_LEN]);
+ seq = SDPCM_PACKET_SEQUENCE(&dptr[SDPCM_FRAMETAG_LEN]);
+ bus->nextlen = dptr[SDPCM_FRAMETAG_LEN + SDPCM_NEXTLEN_OFFSET];
+ if ((bus->nextlen << 4) > MAX_RX_DATASZ) {
+ DHD_INFO(("%s: got frame w/nextlen too large (%d) seq %d\n",
+ __FUNCTION__, bus->nextlen, seq));
+ bus->nextlen = 0;
+ }
+ doff = SDPCM_DOFFSET_VALUE(&dptr[SDPCM_FRAMETAG_LEN]);
+ txmax = SDPCM_WINDOW_VALUE(&dptr[SDPCM_FRAMETAG_LEN]);
+
+ errcode = 0;
+ if ((uint16)~(sublen^check)) {
+ DHD_ERROR(("%s (superframe): HW hdr error: len/check 0x%04x/0x%04x\n",
+ __FUNCTION__, sublen, check));
+ errcode = -1;
+ } else if (ROUNDUP(sublen, bus->blocksize) != dlen) {
+ DHD_ERROR(("%s (superframe): len 0x%04x, rounded 0x%04x, expect 0x%04x\n",
+ __FUNCTION__, sublen, ROUNDUP(sublen, bus->blocksize), dlen));
+ errcode = -1;
+ } else if (SDPCM_PACKET_CHANNEL(&dptr[SDPCM_FRAMETAG_LEN]) != SDPCM_GLOM_CHANNEL) {
+ DHD_ERROR(("%s (superframe): bad channel %d\n", __FUNCTION__,
+ SDPCM_PACKET_CHANNEL(&dptr[SDPCM_FRAMETAG_LEN])));
+ errcode = -1;
+ } else if (SDPCM_GLOMDESC(&dptr[SDPCM_FRAMETAG_LEN])) {
+ DHD_ERROR(("%s (superframe): got second descriptor?\n", __FUNCTION__));
+ errcode = -1;
+ } else if ((doff < SDPCM_HDRLEN) ||
+ (doff > (PKTLEN(osh, pfirst) - SDPCM_HDRLEN))) {
+ DHD_ERROR(("%s (superframe): Bad data offset %d: HW %d pkt %d min %d\n",
+ __FUNCTION__, doff, sublen, PKTLEN(osh, pfirst), SDPCM_HDRLEN));
+ errcode = -1;
+ }
+
+ /* Check sequence number of superframe SW header */
+ if (rxseq != seq) {
+ DHD_INFO(("%s: (superframe) rx_seq %d, expected %d\n",
+ __FUNCTION__, seq, rxseq));
+ bus->rx_badseq++;
+ rxseq = seq;
+ }
+
+ /* Check window for sanity */
+ if ((uint8)(txmax - bus->tx_seq) > 0x40) {
+ DHD_ERROR(("%s: got unlikely tx max %d with tx_seq %d\n",
+ __FUNCTION__, txmax, bus->tx_seq));
+ txmax = bus->tx_seq + 2;
+ }
+ bus->tx_max = txmax;
+
+ /* Remove superframe header, remember offset */
+ PKTPULL(osh, pfirst, doff);
+ sfdoff = doff;
+
+ /* Validate all the subframe headers */
+ for (num = 0, pnext = pfirst; pnext && !errcode;
+ num++, pnext = PKTNEXT(osh, pnext)) {
+ dptr = (uint8 *)PKTDATA(osh, pnext);
+ dlen = (uint16)PKTLEN(osh, pnext);
+ sublen = ltoh16_ua(dptr);
+ check = ltoh16_ua(dptr + sizeof(uint16));
+ chan = SDPCM_PACKET_CHANNEL(&dptr[SDPCM_FRAMETAG_LEN]);
+ doff = SDPCM_DOFFSET_VALUE(&dptr[SDPCM_FRAMETAG_LEN]);
+#ifdef DHD_DEBUG
+ if (DHD_GLOM_ON()) {
+ prhex("subframe", dptr, 32);
+ }
+#endif
+
+ if ((uint16)~(sublen^check)) {
+ DHD_ERROR(("%s (subframe %d): HW hdr error: "
+ "len/check 0x%04x/0x%04x\n",
+ __FUNCTION__, num, sublen, check));
+ errcode = -1;
+ } else if ((sublen > dlen) || (sublen < SDPCM_HDRLEN)) {
+ DHD_ERROR(("%s (subframe %d): length mismatch: "
+ "len 0x%04x, expect 0x%04x\n",
+ __FUNCTION__, num, sublen, dlen));
+ errcode = -1;
+ } else if ((chan != SDPCM_DATA_CHANNEL) &&
+ (chan != SDPCM_EVENT_CHANNEL)) {
+ DHD_ERROR(("%s (subframe %d): bad channel %d\n",
+ __FUNCTION__, num, chan));
+ errcode = -1;
+ } else if ((doff < SDPCM_HDRLEN) || (doff > sublen)) {
+ DHD_ERROR(("%s (subframe %d): Bad data offset %d: HW %d min %d\n",
+ __FUNCTION__, num, doff, sublen, SDPCM_HDRLEN));
+ errcode = -1;
+ }
+ }
+
+ if (errcode) {
+ /* Terminate frame on error, request a couple retries */
+ if (bus->glomerr++ < 3) {
+ /* Restore superframe header space */
+ PKTPUSH(osh, pfirst, sfdoff);
+ dhdsdio_rxfail(bus, TRUE, TRUE);
+ } else {
+ bus->glomerr = 0;
+ dhdsdio_rxfail(bus, TRUE, FALSE);
+ dhd_os_sdlock_rxq(bus->dhd);
+ PKTFREE(osh, bus->glom, FALSE);
+ dhd_os_sdunlock_rxq(bus->dhd);
+ bus->rxglomfail++;
+ bus->glom = NULL;
+ }
+ bus->nextlen = 0;
+ return 0;
+ }
+
+ /* Basic SD framing looks ok - process each packet (header) */
+ save_pfirst = pfirst;
+ bus->glom = NULL;
+ plast = NULL;
+
+ dhd_os_sdlock_rxq(bus->dhd);
+ for (num = 0; pfirst; rxseq++, pfirst = pnext) {
+ pnext = PKTNEXT(osh, pfirst);
+ PKTSETNEXT(osh, pfirst, NULL);
+
+ dptr = (uint8 *)PKTDATA(osh, pfirst);
+ sublen = ltoh16_ua(dptr);
+ chan = SDPCM_PACKET_CHANNEL(&dptr[SDPCM_FRAMETAG_LEN]);
+ seq = SDPCM_PACKET_SEQUENCE(&dptr[SDPCM_FRAMETAG_LEN]);
+ doff = SDPCM_DOFFSET_VALUE(&dptr[SDPCM_FRAMETAG_LEN]);
+
+ DHD_GLOM(("%s: Get subframe %d, %p(%p/%d), sublen %d chan %d seq %d\n",
+ __FUNCTION__, num, pfirst, PKTDATA(osh, pfirst),
+ PKTLEN(osh, pfirst), sublen, chan, seq));
+
+ ASSERT((chan == SDPCM_DATA_CHANNEL) || (chan == SDPCM_EVENT_CHANNEL));
+
+ if (rxseq != seq) {
+ DHD_GLOM(("%s: rx_seq %d, expected %d\n",
+ __FUNCTION__, seq, rxseq));
+ bus->rx_badseq++;
+ rxseq = seq;
+ }
+
+#ifdef DHD_DEBUG
+ if (DHD_BYTES_ON() && DHD_DATA_ON()) {
+ prhex("Rx Subframe Data", dptr, dlen);
+ }
+#endif
+
+ PKTSETLEN(osh, pfirst, sublen);
+ PKTPULL(osh, pfirst, doff);
+
+ if (PKTLEN(osh, pfirst) == 0) {
+ PKTFREE(bus->dhd->osh, pfirst, FALSE);
+ if (plast) {
+ PKTSETNEXT(osh, plast, pnext);
+ } else {
+ ASSERT(save_pfirst == pfirst);
+ save_pfirst = pnext;
+ }
+ continue;
+ } else if (dhd_prot_hdrpull(bus->dhd, &ifidx, pfirst) != 0) {
+ DHD_ERROR(("%s: rx protocol error\n", __FUNCTION__));
+ bus->dhd->rx_errors++;
+ PKTFREE(osh, pfirst, FALSE);
+ if (plast) {
+ PKTSETNEXT(osh, plast, pnext);
+ } else {
+ ASSERT(save_pfirst == pfirst);
+ save_pfirst = pnext;
+ }
+ continue;
+ }
+
+ /* this packet will go up, link back into chain and count it */
+ PKTSETNEXT(osh, pfirst, pnext);
+ plast = pfirst;
+ num++;
+
+#ifdef DHD_DEBUG
+ if (DHD_GLOM_ON()) {
+ DHD_GLOM(("%s subframe %d to stack, %p(%p/%d) nxt/lnk %p/%p\n",
+ __FUNCTION__, num, pfirst,
+ PKTDATA(osh, pfirst), PKTLEN(osh, pfirst),
+ PKTNEXT(osh, pfirst), PKTLINK(pfirst)));
+ prhex("", (uint8 *)PKTDATA(osh, pfirst),
+ MIN(PKTLEN(osh, pfirst), 32));
+ }
+#endif /* DHD_DEBUG */
+ }
+ dhd_os_sdunlock_rxq(bus->dhd);
+ if (num) {
+ dhd_os_sdunlock(bus->dhd);
+ dhd_rx_frame(bus->dhd, ifidx, save_pfirst, num);
+ dhd_os_sdlock(bus->dhd);
+ }
+
+ bus->rxglomframes++;
+ bus->rxglompkts += num;
+ }
+ return num;
+}
+
+/* Return TRUE if there may be more frames to read */
+static uint
+dhdsdio_readframes(dhd_bus_t *bus, uint maxframes, bool *finished)
+{
+ osl_t *osh = bus->dhd->osh;
+ bcmsdh_info_t *sdh = bus->sdh;
+
+ uint16 len, check; /* Extracted hardware header fields */
+ uint8 chan, seq, doff; /* Extracted software header fields */
+ uint8 fcbits; /* Extracted fcbits from software header */
+ uint8 delta;
+
+ void *pkt; /* Packet for event or data frames */
+ uint16 pad; /* Number of pad bytes to read */
+ uint16 rdlen; /* Total number of bytes to read */
+ uint8 rxseq; /* Next sequence number to expect */
+ uint rxleft = 0; /* Remaining number of frames allowed */
+ int sdret; /* Return code from bcmsdh calls */
+ uint8 txmax; /* Maximum tx sequence offered */
+ bool len_consistent; /* Result of comparing readahead len and len from hw-hdr */
+ uint8 *rxbuf;
+ int ifidx = 0;
+ uint rxcount = 0; /* Total frames read */
+
+#if defined(DHD_DEBUG) || defined(SDTEST)
+ bool sdtest = FALSE; /* To limit message spew from test mode */
+#endif
+
+ DHD_TRACE(("%s: Enter\n", __FUNCTION__));
+
+ ASSERT(maxframes);
+
+#ifdef SDTEST
+ /* Allow pktgen to override maxframes */
+ if (bus->pktgen_count && (bus->pktgen_mode == DHD_PKTGEN_RECV)) {
+ maxframes = bus->pktgen_count;
+ sdtest = TRUE;
+ }
+#endif
+
+ /* Not finished unless we encounter no more frames indication */
+ *finished = FALSE;
+
+
+ for (rxseq = bus->rx_seq, rxleft = maxframes;
+ !bus->rxskip && rxleft && bus->dhd->busstate != DHD_BUS_DOWN;
+ rxseq++, rxleft--) {
+
+ /* Handle glomming separately */
+ if (bus->glom || bus->glomd) {
+ uint8 cnt;
+ DHD_GLOM(("%s: calling rxglom: glomd %p, glom %p\n",
+ __FUNCTION__, bus->glomd, bus->glom));
+ cnt = dhdsdio_rxglom(bus, rxseq);
+ DHD_GLOM(("%s: rxglom returned %d\n", __FUNCTION__, cnt));
+ rxseq += cnt - 1;
+ rxleft = (rxleft > cnt) ? (rxleft - cnt) : 1;
+ continue;
+ }
+
+ /* Try doing single read if we can */
+ if (dhd_readahead && bus->nextlen) {
+ uint16 nextlen = bus->nextlen;
+ bus->nextlen = 0;
+
+ if (bus->bus == SPI_BUS) {
+ rdlen = len = nextlen;
+ }
+ else {
+ rdlen = len = nextlen << 4;
+
+ /* Pad read to blocksize for efficiency */
+ if (bus->roundup && bus->blocksize && (rdlen > bus->blocksize)) {
+ pad = bus->blocksize - (rdlen % bus->blocksize);
+ if ((pad <= bus->roundup) && (pad < bus->blocksize) &&
+ ((rdlen + pad + firstread) < MAX_RX_DATASZ))
+ rdlen += pad;
+ } else if (rdlen % DHD_SDALIGN) {
+ rdlen += DHD_SDALIGN - (rdlen % DHD_SDALIGN);
+ }
+ }
+
+ /* We use bus->rxctl buffer in WinXP for initial control pkt receives.
+ * Later we use buffer-poll for data as well as control packets.
+ * This is required becuase dhd receives full frame in gSPI unlike SDIO.
+ * After the frame is received we have to distinguish whether it is data
+ * or non-data frame.
+ */
+ /* Allocate a packet buffer */
+ dhd_os_sdlock_rxq(bus->dhd);
+ if (!(pkt = PKTGET(osh, rdlen + DHD_SDALIGN, FALSE))) {
+ if (bus->bus == SPI_BUS) {
+ bus->usebufpool = FALSE;
+ bus->rxctl = bus->rxbuf;
+ if (dhd_alignctl) {
+ bus->rxctl += firstread;
+ if ((pad = ((uintptr)bus->rxctl % DHD_SDALIGN)))
+ bus->rxctl += (DHD_SDALIGN - pad);
+ bus->rxctl -= firstread;
+ }
+ ASSERT(bus->rxctl >= bus->rxbuf);
+ rxbuf = bus->rxctl;
+ /* Read the entire frame */
+ sdret = dhd_bcmsdh_recv_buf(bus,
+ bcmsdh_cur_sbwad(sdh),
+ SDIO_FUNC_2,
+ F2SYNC, rxbuf, rdlen,
+ NULL, NULL, NULL);
+ bus->f2rxdata++;
+ ASSERT(sdret != BCME_PENDING);
+
+
+ /* Control frame failures need retransmission */
+ if (sdret < 0) {
+ DHD_ERROR(("%s: read %d control bytes failed: %d\n",
+ __FUNCTION__, rdlen, sdret));
+ /* dhd.rx_ctlerrs is higher level */
+ bus->rxc_errors++;
+ dhd_os_sdunlock_rxq(bus->dhd);
+ dhdsdio_rxfail(bus, TRUE,
+ (bus->bus == SPI_BUS) ? FALSE : TRUE);
+ continue;
+ }
+ } else {
+ /* Give up on data, request rtx of events */
+ DHD_ERROR(("%s (nextlen): PKTGET failed: len %d rdlen %d "
+ "expected rxseq %d\n",
+ __FUNCTION__, len, rdlen, rxseq));
+ /* Just go try again w/normal header read */
+ dhd_os_sdunlock_rxq(bus->dhd);
+ continue;
+ }
+ } else {
+ if (bus->bus == SPI_BUS)
+ bus->usebufpool = TRUE;
+
+ ASSERT(!PKTLINK(pkt));
+ PKTALIGN(osh, pkt, rdlen, DHD_SDALIGN);
+ rxbuf = (uint8 *)PKTDATA(osh, pkt);
+ /* Read the entire frame */
+ sdret = dhd_bcmsdh_recv_buf(bus, bcmsdh_cur_sbwad(sdh),
+ SDIO_FUNC_2,
+ F2SYNC, rxbuf, rdlen,
+ pkt, NULL, NULL);
+ bus->f2rxdata++;
+ ASSERT(sdret != BCME_PENDING);
+
+ if (sdret < 0) {
+ DHD_ERROR(("%s (nextlen): read %d bytes failed: %d\n",
+ __FUNCTION__, rdlen, sdret));
+ PKTFREE(bus->dhd->osh, pkt, FALSE);
+ bus->dhd->rx_errors++;
+ dhd_os_sdunlock_rxq(bus->dhd);
+ /* Force retry w/normal header read. Don't attemp NAK for
+ * gSPI
+ */
+ dhdsdio_rxfail(bus, TRUE,
+ (bus->bus == SPI_BUS) ? FALSE : TRUE);
+ continue;
+ }
+ }
+ dhd_os_sdunlock_rxq(bus->dhd);
+
+ /* Now check the header */
+ bcopy(rxbuf, bus->rxhdr, SDPCM_HDRLEN);
+
+ /* Extract hardware header fields */
+ len = ltoh16_ua(bus->rxhdr);
+ check = ltoh16_ua(bus->rxhdr + sizeof(uint16));
+
+ /* All zeros means readahead info was bad */
+ if (!(len|check)) {
+ DHD_INFO(("%s (nextlen): read zeros in HW header???\n",
+ __FUNCTION__));
+ dhd_os_sdlock_rxq(bus->dhd);
+ PKTFREE2();
+ dhd_os_sdunlock_rxq(bus->dhd);
+ GSPI_PR55150_BAILOUT;
+ continue;
+ }
+
+ /* Validate check bytes */
+ if ((uint16)~(len^check)) {
+ DHD_ERROR(("%s (nextlen): HW hdr error: nextlen/len/check"
+ " 0x%04x/0x%04x/0x%04x\n", __FUNCTION__, nextlen,
+ len, check));
+ dhd_os_sdlock_rxq(bus->dhd);
+ PKTFREE2();
+ dhd_os_sdunlock_rxq(bus->dhd);
+ bus->rx_badhdr++;
+ dhdsdio_rxfail(bus, FALSE, FALSE);
+ GSPI_PR55150_BAILOUT;
+ continue;
+ }
+
+ /* Validate frame length */
+ if (len < SDPCM_HDRLEN) {
+ DHD_ERROR(("%s (nextlen): HW hdr length invalid: %d\n",
+ __FUNCTION__, len));
+ dhd_os_sdlock_rxq(bus->dhd);
+ PKTFREE2();
+ dhd_os_sdunlock_rxq(bus->dhd);
+ GSPI_PR55150_BAILOUT;
+ continue;
+ }
+
+ /* Check for consistency with readahead info */
+ len_consistent = (nextlen != (ROUNDUP(len, 16) >> 4));
+ if (len_consistent) {
+ /* Mismatch, force retry w/normal header (may be >4K) */
+ DHD_ERROR(("%s (nextlen): mismatch, nextlen %d len %d rnd %d; "
+ "expected rxseq %d\n",
+ __FUNCTION__, nextlen, len, ROUNDUP(len, 16), rxseq));
+ dhd_os_sdlock_rxq(bus->dhd);
+ PKTFREE2();
+ dhd_os_sdunlock_rxq(bus->dhd);
+ dhdsdio_rxfail(bus, TRUE, (bus->bus == SPI_BUS) ? FALSE : TRUE);
+ GSPI_PR55150_BAILOUT;
+ continue;
+ }
+
+
+ /* Extract software header fields */
+ chan = SDPCM_PACKET_CHANNEL(&bus->rxhdr[SDPCM_FRAMETAG_LEN]);
+ seq = SDPCM_PACKET_SEQUENCE(&bus->rxhdr[SDPCM_FRAMETAG_LEN]);
+ doff = SDPCM_DOFFSET_VALUE(&bus->rxhdr[SDPCM_FRAMETAG_LEN]);
+ txmax = SDPCM_WINDOW_VALUE(&bus->rxhdr[SDPCM_FRAMETAG_LEN]);
+
+ bus->nextlen =
+ bus->rxhdr[SDPCM_FRAMETAG_LEN + SDPCM_NEXTLEN_OFFSET];
+ if ((bus->nextlen << 4) > MAX_RX_DATASZ) {
+ DHD_INFO(("%s (nextlen): got frame w/nextlen too large"
+ " (%d), seq %d\n", __FUNCTION__, bus->nextlen,
+ seq));
+ bus->nextlen = 0;
+ }
+
+ bus->dhd->rx_readahead_cnt ++;
+ /* Handle Flow Control */
+ fcbits = SDPCM_FCMASK_VALUE(&bus->rxhdr[SDPCM_FRAMETAG_LEN]);
+
+ delta = 0;
+ if (~bus->flowcontrol & fcbits) {
+ bus->fc_xoff++;
+ delta = 1;
+ }
+ if (bus->flowcontrol & ~fcbits) {
+ bus->fc_xon++;
+ delta = 1;
+ }
+
+ if (delta) {
+ bus->fc_rcvd++;
+ bus->flowcontrol = fcbits;
+ }
+
+ /* Check and update sequence number */
+ if (rxseq != seq) {
+ DHD_INFO(("%s (nextlen): rx_seq %d, expected %d\n",
+ __FUNCTION__, seq, rxseq));
+ bus->rx_badseq++;
+ rxseq = seq;
+ }
+
+ /* Check window for sanity */
+ if ((uint8)(txmax - bus->tx_seq) > 0x40) {
+ DHD_ERROR(("%s: got unlikely tx max %d with tx_seq %d\n",
+ __FUNCTION__, txmax, bus->tx_seq));
+ txmax = bus->tx_seq + 2;
+ }
+ bus->tx_max = txmax;
+
+#ifdef DHD_DEBUG
+ if (DHD_BYTES_ON() && DHD_DATA_ON()) {
+ prhex("Rx Data", rxbuf, len);
+ } else if (DHD_HDRS_ON()) {
+ prhex("RxHdr", bus->rxhdr, SDPCM_HDRLEN);
+ }
+#endif
+
+ if (chan == SDPCM_CONTROL_CHANNEL) {
+ if (bus->bus == SPI_BUS) {
+ dhdsdio_read_control(bus, rxbuf, len, doff);
+ if (bus->usebufpool) {
+ dhd_os_sdlock_rxq(bus->dhd);
+ PKTFREE(bus->dhd->osh, pkt, FALSE);
+ dhd_os_sdunlock_rxq(bus->dhd);
+ }
+ continue;
+ } else {
+ DHD_ERROR(("%s (nextlen): readahead on control"
+ " packet %d?\n", __FUNCTION__, seq));
+ /* Force retry w/normal header read */
+ bus->nextlen = 0;
+ dhdsdio_rxfail(bus, FALSE, TRUE);
+ dhd_os_sdlock_rxq(bus->dhd);
+ PKTFREE2();
+ dhd_os_sdunlock_rxq(bus->dhd);
+ continue;
+ }
+ }
+
+ if ((bus->bus == SPI_BUS) && !bus->usebufpool) {
+ DHD_ERROR(("Received %d bytes on %d channel. Running out of "
+ "rx pktbuf's or not yet malloced.\n", len, chan));
+ continue;
+ }
+
+ /* Validate data offset */
+ if ((doff < SDPCM_HDRLEN) || (doff > len)) {
+ DHD_ERROR(("%s (nextlen): bad data offset %d: HW len %d min %d\n",
+ __FUNCTION__, doff, len, SDPCM_HDRLEN));
+ dhd_os_sdlock_rxq(bus->dhd);
+ PKTFREE2();
+ dhd_os_sdunlock_rxq(bus->dhd);
+ ASSERT(0);
+ dhdsdio_rxfail(bus, FALSE, FALSE);
+ continue;
+ }
+
+ /* All done with this one -- now deliver the packet */
+ goto deliver;
+ }
+ /* gSPI frames should not be handled in fractions */
+ if (bus->bus == SPI_BUS) {
+ break;
+ }
+
+ /* Read frame header (hardware and software) */
+ sdret = dhd_bcmsdh_recv_buf(bus, bcmsdh_cur_sbwad(sdh), SDIO_FUNC_2, F2SYNC,
+ bus->rxhdr, firstread, NULL, NULL, NULL);
+ bus->f2rxhdrs++;
+ ASSERT(sdret != BCME_PENDING);
+
+ if (sdret < 0) {
+ DHD_ERROR(("%s: RXHEADER FAILED: %d\n", __FUNCTION__, sdret));
+ bus->rx_hdrfail++;
+ dhdsdio_rxfail(bus, TRUE, TRUE);
+ continue;
+ }
+
+#ifdef DHD_DEBUG
+ if (DHD_BYTES_ON() || DHD_HDRS_ON()) {
+ prhex("RxHdr", bus->rxhdr, SDPCM_HDRLEN);
+ }
+#endif
+
+ /* Extract hardware header fields */
+ len = ltoh16_ua(bus->rxhdr);
+ check = ltoh16_ua(bus->rxhdr + sizeof(uint16));
+
+ /* All zeros means no more frames */
+ if (!(len|check)) {
+ *finished = TRUE;
+ break;
+ }
+
+ /* Validate check bytes */
+ if ((uint16)~(len^check)) {
+ DHD_ERROR(("%s: HW hdr error: len/check 0x%04x/0x%04x\n",
+ __FUNCTION__, len, check));
+ bus->rx_badhdr++;
+ dhdsdio_rxfail(bus, FALSE, FALSE);
+ continue;
+ }
+
+ /* Validate frame length */
+ if (len < SDPCM_HDRLEN) {
+ DHD_ERROR(("%s: HW hdr length invalid: %d\n", __FUNCTION__, len));
+ continue;
+ }
+
+ /* Extract software header fields */
+ chan = SDPCM_PACKET_CHANNEL(&bus->rxhdr[SDPCM_FRAMETAG_LEN]);
+ seq = SDPCM_PACKET_SEQUENCE(&bus->rxhdr[SDPCM_FRAMETAG_LEN]);
+ doff = SDPCM_DOFFSET_VALUE(&bus->rxhdr[SDPCM_FRAMETAG_LEN]);
+ txmax = SDPCM_WINDOW_VALUE(&bus->rxhdr[SDPCM_FRAMETAG_LEN]);
+
+ /* Validate data offset */
+ if ((doff < SDPCM_HDRLEN) || (doff > len)) {
+ DHD_ERROR(("%s: Bad data offset %d: HW len %d, min %d seq %d\n",
+ __FUNCTION__, doff, len, SDPCM_HDRLEN, seq));
+ bus->rx_badhdr++;
+ ASSERT(0);
+ dhdsdio_rxfail(bus, FALSE, FALSE);
+ continue;
+ }
+
+ /* Save the readahead length if there is one */
+ bus->nextlen = bus->rxhdr[SDPCM_FRAMETAG_LEN + SDPCM_NEXTLEN_OFFSET];
+ if ((bus->nextlen << 4) > MAX_RX_DATASZ) {
+ DHD_INFO(("%s (nextlen): got frame w/nextlen too large (%d), seq %d\n",
+ __FUNCTION__, bus->nextlen, seq));
+ bus->nextlen = 0;
+ }
+
+ /* Handle Flow Control */
+ fcbits = SDPCM_FCMASK_VALUE(&bus->rxhdr[SDPCM_FRAMETAG_LEN]);
+
+ delta = 0;
+ if (~bus->flowcontrol & fcbits) {
+ bus->fc_xoff++;
+ delta = 1;
+ }
+ if (bus->flowcontrol & ~fcbits) {
+ bus->fc_xon++;
+ delta = 1;
+ }
+
+ if (delta) {
+ bus->fc_rcvd++;
+ bus->flowcontrol = fcbits;
+ }
+
+ /* Check and update sequence number */
+ if (rxseq != seq) {
+ DHD_INFO(("%s: rx_seq %d, expected %d\n", __FUNCTION__, seq, rxseq));
+ bus->rx_badseq++;
+ rxseq = seq;
+ }
+
+ /* Check window for sanity */
+ if ((uint8)(txmax - bus->tx_seq) > 0x40) {
+ DHD_ERROR(("%s: got unlikely tx max %d with tx_seq %d\n",
+ __FUNCTION__, txmax, bus->tx_seq));
+ txmax = bus->tx_seq + 2;
+ }
+ bus->tx_max = txmax;
+
+ /* Call a separate function for control frames */
+ if (chan == SDPCM_CONTROL_CHANNEL) {
+ dhdsdio_read_control(bus, bus->rxhdr, len, doff);
+ continue;
+ }
+
+ ASSERT((chan == SDPCM_DATA_CHANNEL) || (chan == SDPCM_EVENT_CHANNEL) ||
+ (chan == SDPCM_TEST_CHANNEL) || (chan == SDPCM_GLOM_CHANNEL));
+
+ /* Length to read */
+ rdlen = (len > firstread) ? (len - firstread) : 0;
+
+ /* May pad read to blocksize for efficiency */
+ if (bus->roundup && bus->blocksize && (rdlen > bus->blocksize)) {
+ pad = bus->blocksize - (rdlen % bus->blocksize);
+ if ((pad <= bus->roundup) && (pad < bus->blocksize) &&
+ ((rdlen + pad + firstread) < MAX_RX_DATASZ))
+ rdlen += pad;
+ } else if (rdlen % DHD_SDALIGN) {
+ rdlen += DHD_SDALIGN - (rdlen % DHD_SDALIGN);
+ }
+
+ /* Satisfy length-alignment requirements */
+ if (forcealign && (rdlen & (ALIGNMENT - 1)))
+ rdlen = ROUNDUP(rdlen, ALIGNMENT);
+
+ if ((rdlen + firstread) > MAX_RX_DATASZ) {
+ /* Too long -- skip this frame */
+ DHD_ERROR(("%s: too long: len %d rdlen %d\n", __FUNCTION__, len, rdlen));
+ bus->dhd->rx_errors++; bus->rx_toolong++;
+ dhdsdio_rxfail(bus, FALSE, FALSE);
+ continue;
+ }
+
+ dhd_os_sdlock_rxq(bus->dhd);
+ if (!(pkt = PKTGET(osh, (rdlen + firstread + DHD_SDALIGN), FALSE))) {
+ /* Give up on data, request rtx of events */
+ DHD_ERROR(("%s: PKTGET failed: rdlen %d chan %d\n",
+ __FUNCTION__, rdlen, chan));
+ bus->dhd->rx_dropped++;
+ dhd_os_sdunlock_rxq(bus->dhd);
+ dhdsdio_rxfail(bus, FALSE, RETRYCHAN(chan));
+ continue;
+ }
+ dhd_os_sdunlock_rxq(bus->dhd);
+
+ ASSERT(!PKTLINK(pkt));
+
+ /* Leave room for what we already read, and align remainder */
+ ASSERT(firstread < (PKTLEN(osh, pkt)));
+ PKTPULL(osh, pkt, firstread);
+ PKTALIGN(osh, pkt, rdlen, DHD_SDALIGN);
+
+ /* Read the remaining frame data */
+ sdret = dhd_bcmsdh_recv_buf(bus, bcmsdh_cur_sbwad(sdh), SDIO_FUNC_2, F2SYNC,
+ ((uint8 *)PKTDATA(osh, pkt)), rdlen, pkt, NULL, NULL);
+ bus->f2rxdata++;
+ ASSERT(sdret != BCME_PENDING);
+
+ if (sdret < 0) {
+ DHD_ERROR(("%s: read %d %s bytes failed: %d\n", __FUNCTION__, rdlen,
+ ((chan == SDPCM_EVENT_CHANNEL) ? "event" :
+ ((chan == SDPCM_DATA_CHANNEL) ? "data" : "test")), sdret));
+ dhd_os_sdlock_rxq(bus->dhd);
+ PKTFREE(bus->dhd->osh, pkt, FALSE);
+ dhd_os_sdunlock_rxq(bus->dhd);
+ bus->dhd->rx_errors++;
+ dhdsdio_rxfail(bus, TRUE, RETRYCHAN(chan));
+ continue;
+ }
+
+ /* Copy the already-read portion */
+ PKTPUSH(osh, pkt, firstread);
+ bcopy(bus->rxhdr, PKTDATA(osh, pkt), firstread);
+
+#ifdef DHD_DEBUG
+ if (DHD_BYTES_ON() && DHD_DATA_ON()) {
+ prhex("Rx Data", PKTDATA(osh, pkt), len);
+ }
+#endif
+
+deliver:
+ /* Save superframe descriptor and allocate packet frame */
+ if (chan == SDPCM_GLOM_CHANNEL) {
+ if (SDPCM_GLOMDESC(&bus->rxhdr[SDPCM_FRAMETAG_LEN])) {
+ DHD_GLOM(("%s: got glom descriptor, %d bytes:\n",
+ __FUNCTION__, len));
+#ifdef DHD_DEBUG
+ if (DHD_GLOM_ON()) {
+ prhex("Glom Data", PKTDATA(osh, pkt), len);
+ }
+#endif
+ PKTSETLEN(osh, pkt, len);
+ ASSERT(doff == SDPCM_HDRLEN);
+ PKTPULL(osh, pkt, SDPCM_HDRLEN);
+ bus->glomd = pkt;
+ } else {
+ DHD_ERROR(("%s: glom superframe w/o descriptor!\n", __FUNCTION__));
+ dhdsdio_rxfail(bus, FALSE, FALSE);
+ }
+ continue;
+ }
+
+ /* Fill in packet len and prio, deliver upward */
+ PKTSETLEN(osh, pkt, len);
+ PKTPULL(osh, pkt, doff);
+
+#ifdef SDTEST
+ /* Test channel packets are processed separately */
+ if (chan == SDPCM_TEST_CHANNEL) {
+ dhdsdio_testrcv(bus, pkt, seq);
+ continue;
+ }
+#endif /* SDTEST */
+
+ if (PKTLEN(osh, pkt) == 0) {
+ dhd_os_sdlock_rxq(bus->dhd);
+ PKTFREE(bus->dhd->osh, pkt, FALSE);
+ dhd_os_sdunlock_rxq(bus->dhd);
+ continue;
+ } else if (dhd_prot_hdrpull(bus->dhd, &ifidx, pkt) != 0) {
+ DHD_ERROR(("%s: rx protocol error\n", __FUNCTION__));
+ dhd_os_sdlock_rxq(bus->dhd);
+ PKTFREE(bus->dhd->osh, pkt, FALSE);
+ dhd_os_sdunlock_rxq(bus->dhd);
+ bus->dhd->rx_errors++;
+ continue;
+ }
+
+
+ /* Unlock during rx call */
+ dhd_os_sdunlock(bus->dhd);
+ dhd_rx_frame(bus->dhd, ifidx, pkt, 1);
+ dhd_os_sdlock(bus->dhd);
+ }
+ rxcount = maxframes - rxleft;
+#ifdef DHD_DEBUG
+ /* Message if we hit the limit */
+ if (!rxleft && !sdtest)
+ DHD_DATA(("%s: hit rx limit of %d frames\n", __FUNCTION__, maxframes));
+ else
+#endif /* DHD_DEBUG */
+ DHD_DATA(("%s: processed %d frames\n", __FUNCTION__, rxcount));
+ /* Back off rxseq if awaiting rtx, update rx_seq */
+ if (bus->rxskip)
+ rxseq--;
+ bus->rx_seq = rxseq;
+
+ return rxcount;
+}
+
+static uint32
+dhdsdio_hostmail(dhd_bus_t *bus)
+{
+ sdpcmd_regs_t *regs = bus->regs;
+ uint32 intstatus = 0;
+ uint32 hmb_data;
+ uint8 fcbits;
+ uint retries = 0;
+
+ DHD_TRACE(("%s: Enter\n", __FUNCTION__));
+
+ /* Read mailbox data and ack that we did so */
+ R_SDREG(hmb_data, ®s->tohostmailboxdata, retries);
+ if (retries <= retry_limit)
+ W_SDREG(SMB_INT_ACK, ®s->tosbmailbox, retries);
+ bus->f1regdata += 2;
+
+ /* Dongle recomposed rx frames, accept them again */
+ if (hmb_data & HMB_DATA_NAKHANDLED) {
+ DHD_INFO(("Dongle reports NAK handled, expect rtx of %d\n", bus->rx_seq));
+ if (!bus->rxskip) {
+ DHD_ERROR(("%s: unexpected NAKHANDLED!\n", __FUNCTION__));
+ }
+ bus->rxskip = FALSE;
+ intstatus |= I_HMB_FRAME_IND;
+ }
+
+ /*
+ * DEVREADY does not occur with gSPI.
+ */
+ if (hmb_data & (HMB_DATA_DEVREADY | HMB_DATA_FWREADY)) {
+ bus->sdpcm_ver = (hmb_data & HMB_DATA_VERSION_MASK) >> HMB_DATA_VERSION_SHIFT;
+ if (bus->sdpcm_ver != SDPCM_PROT_VERSION)
+ DHD_ERROR(("Version mismatch, dongle reports %d, expecting %d\n",
+ bus->sdpcm_ver, SDPCM_PROT_VERSION));
+ else
+ DHD_INFO(("Dongle ready, protocol version %d\n", bus->sdpcm_ver));
+ }
+
+ /*
+ * Flow Control has been moved into the RX headers and this out of band
+ * method isn't used any more. Leae this here for possibly remaining backward
+ * compatible with older dongles
+ */
+ if (hmb_data & HMB_DATA_FC) {
+ fcbits = (hmb_data & HMB_DATA_FCDATA_MASK) >> HMB_DATA_FCDATA_SHIFT;
+
+ if (fcbits & ~bus->flowcontrol)
+ bus->fc_xoff++;
+ if (bus->flowcontrol & ~fcbits)
+ bus->fc_xon++;
+
+ bus->fc_rcvd++;
+ bus->flowcontrol = fcbits;
+ }
+
+ /* Shouldn't be any others */
+ if (hmb_data & ~(HMB_DATA_DEVREADY |
+ HMB_DATA_NAKHANDLED |
+ HMB_DATA_FC |
+ HMB_DATA_FWREADY |
+ HMB_DATA_FCDATA_MASK |
+ HMB_DATA_VERSION_MASK)) {
+ DHD_ERROR(("Unknown mailbox data content: 0x%02x\n", hmb_data));
+ }
+
+ return intstatus;
+}
+
+bool
+dhdsdio_dpc(dhd_bus_t *bus)
+{
+ bcmsdh_info_t *sdh = bus->sdh;
+ sdpcmd_regs_t *regs = bus->regs;
+ uint32 intstatus, newstatus = 0;
+ uint retries = 0;
+ uint rxlimit = dhd_rxbound; /* Rx frames to read before resched */
+ uint txlimit = dhd_txbound; /* Tx frames to send before resched */
+ uint framecnt = 0; /* Temporary counter of tx/rx frames */
+ bool rxdone = TRUE; /* Flag for no more read data */
+ bool resched = FALSE; /* Flag indicating resched wanted */
+
+ DHD_TRACE(("%s: Enter\n", __FUNCTION__));
+
+ /* Start with leftover status bits */
+ intstatus = bus->intstatus;
+
+ dhd_os_sdlock(bus->dhd);
+
+ /* If waiting for HTAVAIL, check status */
+ if (bus->clkstate == CLK_PENDING) {
+ int err;
+ uint8 clkctl, devctl = 0;
+
+#ifdef DHD_DEBUG
+ /* Check for inconsistent device control */
+ devctl = bcmsdh_cfg_read(sdh, SDIO_FUNC_1, SBSDIO_DEVICE_CTL, &err);
+ if (err) {
+ DHD_ERROR(("%s: error reading DEVCTL: %d\n", __FUNCTION__, err));
+ bus->dhd->busstate = DHD_BUS_DOWN;
+ } else {
+ ASSERT(devctl & SBSDIO_DEVCTL_CA_INT_ONLY);
+ }
+#endif /* DHD_DEBUG */
+
+ /* Read CSR, if clock on switch to AVAIL, else ignore */
+ clkctl = bcmsdh_cfg_read(sdh, SDIO_FUNC_1, SBSDIO_FUNC1_CHIPCLKCSR, &err);
+ if (err) {
+ DHD_ERROR(("%s: error reading CSR: %d\n", __FUNCTION__, err));
+ bus->dhd->busstate = DHD_BUS_DOWN;
+ }
+
+ DHD_INFO(("DPC: PENDING, devctl 0x%02x clkctl 0x%02x\n", devctl, clkctl));
+
+ if (SBSDIO_HTAV(clkctl)) {
+ devctl = bcmsdh_cfg_read(sdh, SDIO_FUNC_1, SBSDIO_DEVICE_CTL, &err);
+ if (err) {
+ DHD_ERROR(("%s: error reading DEVCTL: %d\n",
+ __FUNCTION__, err));
+ bus->dhd->busstate = DHD_BUS_DOWN;
+ }
+ devctl &= ~SBSDIO_DEVCTL_CA_INT_ONLY;
+ bcmsdh_cfg_write(sdh, SDIO_FUNC_1, SBSDIO_DEVICE_CTL, devctl, &err);
+ if (err) {
+ DHD_ERROR(("%s: error writing DEVCTL: %d\n",
+ __FUNCTION__, err));
+ bus->dhd->busstate = DHD_BUS_DOWN;
+ }
+ bus->clkstate = CLK_AVAIL;
+ } else {
+ goto clkwait;
+ }
+ }
+
+ BUS_WAKE(bus);
+
+ /* Make sure backplane clock is on */
+ dhdsdio_clkctl(bus, CLK_AVAIL, TRUE);
+ if (bus->clkstate == CLK_PENDING)
+ goto clkwait;
+
+ /* Pending interrupt indicates new device status */
+ if (bus->ipend) {
+ bus->ipend = FALSE;
+ R_SDREG(newstatus, ®s->intstatus, retries);
+ bus->f1regdata++;
+ if (bcmsdh_regfail(bus->sdh))
+ newstatus = 0;
+ newstatus &= bus->hostintmask;
+ bus->fcstate = !!(newstatus & I_HMB_FC_STATE);
+ if (newstatus) {
+ W_SDREG(newstatus, ®s->intstatus, retries);
+ bus->f1regdata++;
+ }
+ }
+
+ /* Merge new bits with previous */
+ intstatus |= newstatus;
+ bus->intstatus = 0;
+
+ /* Handle flow-control change: read new state in case our ack
+ * crossed another change interrupt. If change still set, assume
+ * FC ON for safety, let next loop through do the debounce.
+ */
+ if (intstatus & I_HMB_FC_CHANGE) {
+ intstatus &= ~I_HMB_FC_CHANGE;
+ W_SDREG(I_HMB_FC_CHANGE, ®s->intstatus, retries);
+ R_SDREG(newstatus, ®s->intstatus, retries);
+ bus->f1regdata += 2;
+ bus->fcstate = !!(newstatus & (I_HMB_FC_STATE | I_HMB_FC_CHANGE));
+ intstatus |= (newstatus & bus->hostintmask);
+ }
+
+ /* Handle host mailbox indication */
+ if (intstatus & I_HMB_HOST_INT) {
+ intstatus &= ~I_HMB_HOST_INT;
+ intstatus |= dhdsdio_hostmail(bus);
+ }
+
+ /* Generally don't ask for these, can get CRC errors... */
+ if (intstatus & I_WR_OOSYNC) {
+ DHD_ERROR(("Dongle reports WR_OOSYNC\n"));
+ intstatus &= ~I_WR_OOSYNC;
+ }
+
+ if (intstatus & I_RD_OOSYNC) {
+ DHD_ERROR(("Dongle reports RD_OOSYNC\n"));
+ intstatus &= ~I_RD_OOSYNC;
+ }
+
+ if (intstatus & I_SBINT) {
+ DHD_ERROR(("Dongle reports SBINT\n"));
+ intstatus &= ~I_SBINT;
+ }
+
+ /* Would be active due to wake-wlan in gSPI */
+ if (intstatus & I_CHIPACTIVE) {
+ DHD_INFO(("Dongle reports CHIPACTIVE\n"));
+ intstatus &= ~I_CHIPACTIVE;
+ }
+
+ /* Ignore frame indications if rxskip is set */
+ if (bus->rxskip)
+ intstatus &= ~I_HMB_FRAME_IND;
+
+ /* On frame indication, read available frames */
+ if (PKT_AVAILABLE()) {
+ framecnt = dhdsdio_readframes(bus, rxlimit, &rxdone);
+ if (rxdone || bus->rxskip)
+ intstatus &= ~I_HMB_FRAME_IND;
+ rxlimit -= MIN(framecnt, rxlimit);
+ }
+
+ /* Keep still-pending events for next scheduling */
+ bus->intstatus = intstatus;
+
+clkwait:
+ /* Re-enable interrupts to detect new device events (mailbox, rx frame)
+ * or clock availability. (Allows tx loop to check ipend if desired.)
+ * (Unless register access seems hosed, as we may not be able to ACK...)
+ */
+ if (bus->intr && bus->intdis && !bcmsdh_regfail(sdh)) {
+ DHD_INTR(("%s: enable SDIO interrupts, rxdone %d framecnt %d\n",
+ __FUNCTION__, rxdone, framecnt));
+ bus->intdis = FALSE;
+ bcmsdh_intr_enable(sdh);
+ }
+
+ if (DATAOK(bus) && bus->ctrl_frame_stat) {
+ int ret, i;
+
+ ret = dhd_bcmsdh_send_buf(bus, bcmsdh_cur_sbwad(sdh), SDIO_FUNC_2, F2SYNC,
+ (uint8 *)bus->ctrl_frame_buf, (uint32)bus->ctrl_frame_len,
+ NULL, NULL, NULL);
+ ASSERT(ret != BCME_PENDING);
+
+ if (ret < 0) {
+ /* On failure, abort the command and terminate the frame */
+ DHD_INFO(("%s: sdio error %d, abort command and terminate frame.\n",
+ __FUNCTION__, ret));
+ bus->tx_sderrs++;
+
+ bcmsdh_abort(sdh, SDIO_FUNC_2);
+
+ bcmsdh_cfg_write(sdh, SDIO_FUNC_1, SBSDIO_FUNC1_FRAMECTRL,
+ SFC_WF_TERM, NULL);
+ bus->f1regdata++;
+
+ for (i = 0; i < 3; i++) {
+ uint8 hi, lo;
+ hi = bcmsdh_cfg_read(sdh, SDIO_FUNC_1,
+ SBSDIO_FUNC1_WFRAMEBCHI, NULL);
+ lo = bcmsdh_cfg_read(sdh, SDIO_FUNC_1,
+ SBSDIO_FUNC1_WFRAMEBCLO, NULL);
+ bus->f1regdata += 2;
+ if ((hi == 0) && (lo == 0))
+ break;
+ }
+
+ }
+ printf("Return_dpc value is : %d\n", ret);
+ bus->tx_seq = (bus->tx_seq + 1) % SDPCM_SEQUENCE_WRAP;
+ bus->ctrl_frame_stat = FALSE;
+ dhd_wait_event_wakeup(bus->dhd);
+ }
+ /* Send queued frames (limit 1 if rx may still be pending) */
+ else if ((bus->clkstate != CLK_PENDING) && !bus->fcstate &&
+ pktq_mlen(&bus->txq, ~bus->flowcontrol) && txlimit && DATAOK(bus)) {
+ framecnt = rxdone ? txlimit : MIN(txlimit, dhd_txminmax);
+ framecnt = dhdsdio_sendfromq(bus, framecnt);
+ txlimit -= framecnt;
+ }
+
+ /* Resched if events or tx frames are pending, else await next interrupt */
+ /* On failed register access, all bets are off: no resched or interrupts */
+ if ((bus->dhd->busstate == DHD_BUS_DOWN) || bcmsdh_regfail(sdh)) {
+ DHD_ERROR(("%s: failed backplane access over SDIO, halting operation %d \n",
+ __FUNCTION__, bcmsdh_regfail(sdh)));
+ bus->dhd->busstate = DHD_BUS_DOWN;
+ bus->intstatus = 0;
+ } else if (bus->clkstate == CLK_PENDING) {
+ /* Awaiting I_CHIPACTIVE; don't resched */
+ } else if (bus->intstatus || bus->ipend ||
+ (!bus->fcstate && pktq_mlen(&bus->txq, ~bus->flowcontrol) && DATAOK(bus)) ||
+ PKT_AVAILABLE()) { /* Read multiple frames */
+ resched = TRUE;
+ }
+
+
+ bus->dpc_sched = resched;
+
+ /* If we're done for now, turn off clock request. */
+ if ((bus->clkstate != CLK_PENDING) && bus->idletime == DHD_IDLE_IMMEDIATE) {
+ bus->activity = FALSE;
+ dhdsdio_clkctl(bus, CLK_NONE, FALSE);
+ }
+
+ dhd_os_sdunlock(bus->dhd);
+
+ return resched;
+}
+
+bool
+dhd_bus_dpc(struct dhd_bus *bus)
+{
+#ifdef SDIO_ISR_THREAD
+ bool resched;
+
+ /* Call the DPC directly. */
+ DHD_TRACE(("Calling dhdsdio_dpc() from %s\n", __FUNCTION__));
+ resched = dhdsdio_dpc(bus);
+
+ return resched;
+#else
+ return dhdsdio_dpc(bus);
+#endif /* SDIO_ISR_THREAD */
+}
+
+void
+dhdsdio_isr(void *arg)
+{
+ dhd_bus_t *bus = (dhd_bus_t*)arg;
+ bcmsdh_info_t *sdh;
+
+ if (!bus) {
+ DHD_ERROR(("%s : bus is null pointer , exit \n", __FUNCTION__));
+ return;
+ }
+ sdh = bus->sdh;
+
+ if (bus->dhd->busstate == DHD_BUS_DOWN) {
+ DHD_ERROR(("%s : bus is down. we have nothing to do\n", __FUNCTION__));
+ return;
+ }
+
+ DHD_TRACE(("%s: Enter\n", __FUNCTION__));
+
+ /* Count the interrupt call */
+ bus->intrcount++;
+ bus->ipend = TRUE;
+
+ /* Shouldn't get this interrupt if we're sleeping? */
+ if (bus->sleeping) {
+ DHD_ERROR(("INTERRUPT WHILE SLEEPING??\n"));
+ return;
+ }
+
+ /* Disable additional interrupts (is this needed now)? */
+ if (bus->intr) {
+ DHD_INTR(("%s: disable SDIO interrupts\n", __FUNCTION__));
+ } else {
+ DHD_ERROR(("dhdsdio_isr() w/o interrupt configured!\n"));
+ }
+
+ bcmsdh_intr_disable(sdh);
+ bus->intdis = TRUE;
+
+#if defined(SDIO_ISR_THREAD)
+ DHD_TRACE(("Calling dhdsdio_dpc() from %s\n", __FUNCTION__));
+ dhd_os_wake_lock(bus->dhd);
+ while (dhdsdio_dpc(bus));
+ dhd_os_wake_unlock(bus->dhd);
+#else
+ bus->dpc_sched = TRUE;
+ dhd_sched_dpc(bus->dhd);
+#endif
+
+}
+
+#ifdef SDTEST
+static void
+dhdsdio_pktgen_init(dhd_bus_t *bus)
+{
+ /* Default to specified length, or full range */
+ if (dhd_pktgen_len) {
+ bus->pktgen_maxlen = MIN(dhd_pktgen_len, MAX_PKTGEN_LEN);
+ bus->pktgen_minlen = bus->pktgen_maxlen;
+ } else {
+ bus->pktgen_maxlen = MAX_PKTGEN_LEN;
+ bus->pktgen_minlen = 0;
+ }
+ bus->pktgen_len = (uint16)bus->pktgen_minlen;
+
+ /* Default to per-watchdog burst with 10s print time */
+ bus->pktgen_freq = 1;
+ bus->pktgen_print = 10000 / dhd_watchdog_ms;
+ bus->pktgen_count = (dhd_pktgen * dhd_watchdog_ms + 999) / 1000;
+
+ /* Default to echo mode */
+ bus->pktgen_mode = DHD_PKTGEN_ECHO;
+ bus->pktgen_stop = 1;
+}
+
+static void
+dhdsdio_pktgen(dhd_bus_t *bus)
+{
+ void *pkt;
+ uint8 *data;
+ uint pktcount;
+ uint fillbyte;
+ osl_t *osh = bus->dhd->osh;
+ uint16 len;
+
+ /* Display current count if appropriate */
+ if (bus->pktgen_print && (++bus->pktgen_ptick >= bus->pktgen_print)) {
+ bus->pktgen_ptick = 0;
+ printf("%s: send attempts %d rcvd %d\n",
+ __FUNCTION__, bus->pktgen_sent, bus->pktgen_rcvd);
+ }
+
+ /* For recv mode, just make sure dongle has started sending */
+ if (bus->pktgen_mode == DHD_PKTGEN_RECV) {
+ if (!bus->pktgen_rcvd)
+ dhdsdio_sdtest_set(bus, TRUE);
+ return;
+ }
+
+ /* Otherwise, generate or request the specified number of packets */
+ for (pktcount = 0; pktcount < bus->pktgen_count; pktcount++) {
+ /* Stop if total has been reached */
+ if (bus->pktgen_total && (bus->pktgen_sent >= bus->pktgen_total)) {
+ bus->pktgen_count = 0;
+ break;
+ }
+
+ /* Allocate an appropriate-sized packet */
+ len = bus->pktgen_len;
+ if (!(pkt = PKTGET(osh, (len + SDPCM_HDRLEN + SDPCM_TEST_HDRLEN + DHD_SDALIGN),
+ TRUE))) {;
+ DHD_ERROR(("%s: PKTGET failed!\n", __FUNCTION__));
+ break;
+ }
+ PKTALIGN(osh, pkt, (len + SDPCM_HDRLEN + SDPCM_TEST_HDRLEN), DHD_SDALIGN);
+ data = (uint8*)PKTDATA(osh, pkt) + SDPCM_HDRLEN;
+
+ /* Write test header cmd and extra based on mode */
+ switch (bus->pktgen_mode) {
+ case DHD_PKTGEN_ECHO:
+ *data++ = SDPCM_TEST_ECHOREQ;
+ *data++ = (uint8)bus->pktgen_sent;
+ break;
+
+ case DHD_PKTGEN_SEND:
+ *data++ = SDPCM_TEST_DISCARD;
+ *data++ = (uint8)bus->pktgen_sent;
+ break;
+
+ case DHD_PKTGEN_RXBURST:
+ *data++ = SDPCM_TEST_BURST;
+ *data++ = (uint8)bus->pktgen_count;
+ break;
+
+ default:
+ DHD_ERROR(("Unrecognized pktgen mode %d\n", bus->pktgen_mode));
+ PKTFREE(osh, pkt, TRUE);
+ bus->pktgen_count = 0;
+ return;
+ }
+
+ /* Write test header length field */
+ *data++ = (len >> 0);
+ *data++ = (len >> 8);
+
+ /* Then fill in the remainder -- N/A for burst, but who cares... */
+ for (fillbyte = 0; fillbyte < len; fillbyte++)
+ *data++ = SDPCM_TEST_FILL(fillbyte, (uint8)bus->pktgen_sent);
+
+#ifdef DHD_DEBUG
+ if (DHD_BYTES_ON() && DHD_DATA_ON()) {
+ data = (uint8*)PKTDATA(osh, pkt) + SDPCM_HDRLEN;
+ prhex("dhdsdio_pktgen: Tx Data", data, PKTLEN(osh, pkt) - SDPCM_HDRLEN);
+ }
+#endif
+
+ /* Send it */
+ if (dhdsdio_txpkt(bus, pkt, SDPCM_TEST_CHANNEL, TRUE)) {
+ bus->pktgen_fail++;
+ if (bus->pktgen_stop && bus->pktgen_stop == bus->pktgen_fail)
+ bus->pktgen_count = 0;
+ }
+ bus->pktgen_sent++;
+
+ /* Bump length if not fixed, wrap at max */
+ if (++bus->pktgen_len > bus->pktgen_maxlen)
+ bus->pktgen_len = (uint16)bus->pktgen_minlen;
+
+ /* Special case for burst mode: just send one request! */
+ if (bus->pktgen_mode == DHD_PKTGEN_RXBURST)
+ break;
+ }
+}
+
+static void
+dhdsdio_sdtest_set(dhd_bus_t *bus, bool start)
+{
+ void *pkt;
+ uint8 *data;
+ osl_t *osh = bus->dhd->osh;
+
+ /* Allocate the packet */
+ if (!(pkt = PKTGET(osh, SDPCM_HDRLEN + SDPCM_TEST_HDRLEN + DHD_SDALIGN, TRUE))) {
+ DHD_ERROR(("%s: PKTGET failed!\n", __FUNCTION__));
+ return;
+ }
+ PKTALIGN(osh, pkt, (SDPCM_HDRLEN + SDPCM_TEST_HDRLEN), DHD_SDALIGN);
+ data = (uint8*)PKTDATA(osh, pkt) + SDPCM_HDRLEN;
+
+ /* Fill in the test header */
+ *data++ = SDPCM_TEST_SEND;
+ *data++ = start;
+ *data++ = (bus->pktgen_maxlen >> 0);
+ *data++ = (bus->pktgen_maxlen >> 8);
+
+ /* Send it */
+ if (dhdsdio_txpkt(bus, pkt, SDPCM_TEST_CHANNEL, TRUE))
+ bus->pktgen_fail++;
+}
+
+
+static void
+dhdsdio_testrcv(dhd_bus_t *bus, void *pkt, uint seq)
+{
+ osl_t *osh = bus->dhd->osh;
+ uint8 *data;
+ uint pktlen;
+
+ uint8 cmd;
+ uint8 extra;
+ uint16 len;
+ uint16 offset;
+
+ /* Check for min length */
+ if ((pktlen = PKTLEN(osh, pkt)) < SDPCM_TEST_HDRLEN) {
+ DHD_ERROR(("dhdsdio_restrcv: toss runt frame, pktlen %d\n", pktlen));
+ PKTFREE(osh, pkt, FALSE);
+ return;
+ }
+
+ /* Extract header fields */
+ data = PKTDATA(osh, pkt);
+ cmd = *data++;
+ extra = *data++;
+ len = *data++; len += *data++ << 8;
+
+ /* Check length for relevant commands */
+ if (cmd == SDPCM_TEST_DISCARD || cmd == SDPCM_TEST_ECHOREQ || cmd == SDPCM_TEST_ECHORSP) {
+ if (pktlen != len + SDPCM_TEST_HDRLEN) {
+ DHD_ERROR(("dhdsdio_testrcv: frame length mismatch, pktlen %d seq %d"
+ " cmd %d extra %d len %d\n", pktlen, seq, cmd, extra, len));
+ PKTFREE(osh, pkt, FALSE);
+ return;
+ }
+ }
+
+ /* Process as per command */
+ switch (cmd) {
+ case SDPCM_TEST_ECHOREQ:
+ /* Rx->Tx turnaround ok (even on NDIS w/current implementation) */
+ *(uint8 *)(PKTDATA(osh, pkt)) = SDPCM_TEST_ECHORSP;
+ if (dhdsdio_txpkt(bus, pkt, SDPCM_TEST_CHANNEL, TRUE) == 0) {
+ bus->pktgen_sent++;
+ } else {
+ bus->pktgen_fail++;
+ PKTFREE(osh, pkt, FALSE);
+ }
+ bus->pktgen_rcvd++;
+ break;
+
+ case SDPCM_TEST_ECHORSP:
+ if (bus->ext_loop) {
+ PKTFREE(osh, pkt, FALSE);
+ bus->pktgen_rcvd++;
+ break;
+ }
+
+ for (offset = 0; offset < len; offset++, data++) {
+ if (*data != SDPCM_TEST_FILL(offset, extra)) {
+ DHD_ERROR(("dhdsdio_testrcv: echo data mismatch: "
+ "offset %d (len %d) expect 0x%02x rcvd 0x%02x\n",
+ offset, len, SDPCM_TEST_FILL(offset, extra), *data));
+ break;
+ }
+ }
+ PKTFREE(osh, pkt, FALSE);
+ bus->pktgen_rcvd++;
+ break;
+
+ case SDPCM_TEST_DISCARD:
+ PKTFREE(osh, pkt, FALSE);
+ bus->pktgen_rcvd++;
+ break;
+
+ case SDPCM_TEST_BURST:
+ case SDPCM_TEST_SEND:
+ default:
+ DHD_INFO(("dhdsdio_testrcv: unsupported or unknown command, pktlen %d seq %d"
+ " cmd %d extra %d len %d\n", pktlen, seq, cmd, extra, len));
+ PKTFREE(osh, pkt, FALSE);
+ break;
+ }
+
+ /* For recv mode, stop at limie (and tell dongle to stop sending) */
+ if (bus->pktgen_mode == DHD_PKTGEN_RECV) {
+ if (bus->pktgen_total && (bus->pktgen_rcvd >= bus->pktgen_total)) {
+ bus->pktgen_count = 0;
+ dhdsdio_sdtest_set(bus, FALSE);
+ }
+ }
+}
+#endif /* SDTEST */
+
+extern bool
+dhd_bus_watchdog(dhd_pub_t *dhdp)
+{
+ dhd_bus_t *bus;
+
+ DHD_TIMER(("%s: Enter\n", __FUNCTION__));
+
+ bus = dhdp->bus;
+
+ if (bus->dhd->dongle_reset)
+ return FALSE;
+
+ /* Ignore the timer if simulating bus down */
+ if (bus->sleeping)
+ return FALSE;
+
+ dhd_os_sdlock(bus->dhd);
+
+ /* Poll period: check device if appropriate. */
+ if (bus->poll && (++bus->polltick >= bus->pollrate)) {
+ uint32 intstatus = 0;
+
+ /* Reset poll tick */
+ bus->polltick = 0;
+
+ /* Check device if no interrupts */
+ if (!bus->intr || (bus->intrcount == bus->lastintrs)) {
+
+ if (!bus->dpc_sched) {
+ uint8 devpend;
+ devpend = bcmsdh_cfg_read(bus->sdh, SDIO_FUNC_0,
+ SDIOD_CCCR_INTPEND, NULL);
+ intstatus = devpend & (INTR_STATUS_FUNC1 | INTR_STATUS_FUNC2);
+ }
+
+ /* If there is something, make like the ISR and schedule the DPC */
+ if (intstatus) {
+ bus->pollcnt++;
+ bus->ipend = TRUE;
+ if (bus->intr) {
+ bcmsdh_intr_disable(bus->sdh);
+ }
+ bus->dpc_sched = TRUE;
+ dhd_sched_dpc(bus->dhd);
+
+ }
+ }
+
+ /* Update interrupt tracking */
+ bus->lastintrs = bus->intrcount;
+ }
+
+
+#ifdef SDTEST
+ /* Generate packets if configured */
+ if (bus->pktgen_count && (++bus->pktgen_tick >= bus->pktgen_freq)) {
+ /* Make sure backplane clock is on */
+ dhdsdio_clkctl(bus, CLK_AVAIL, FALSE);
+ bus->pktgen_tick = 0;
+ dhdsdio_pktgen(bus);
+ }
+#endif
+
+ /* On idle timeout clear activity flag and/or turn off clock */
+ if ((bus->idletime > 0) && (bus->clkstate == CLK_AVAIL)) {
+ if (++bus->idlecount >= bus->idletime) {
+ bus->idlecount = 0;
+ if (bus->activity) {
+ bus->activity = FALSE;
+ } else {
+ dhdsdio_clkctl(bus, CLK_NONE, FALSE);
+ }
+ }
+ }
+
+ dhd_os_sdunlock(bus->dhd);
+
+ return bus->ipend;
+}
+
+
+#ifdef DHD_DEBUG
+static void
+dhd_dump_cis(uint fn, uint8 *cis)
+{
+ uint byte, tag, tdata;
+ DHD_INFO(("Function %d CIS:\n", fn));
+
+ for (tdata = byte = 0; byte < SBSDIO_CIS_SIZE_LIMIT; byte++) {
+ if ((byte % 16) == 0)
+ DHD_INFO((" "));
+ DHD_INFO(("%02x ", cis[byte]));
+ if ((byte % 16) == 15)
+ DHD_INFO(("\n"));
+ if (!tdata--) {
+ tag = cis[byte];
+ if (tag == 0xff)
+ break;
+ else if (!tag)
+ tdata = 0;
+ else if ((byte + 1) < SBSDIO_CIS_SIZE_LIMIT)
+ tdata = cis[byte + 1] + 1;
+ else
+ DHD_INFO(("]"));
+ }
+ }
+ if ((byte % 16) != 15)
+ DHD_INFO(("\n"));
+}
+#endif /* DHD_DEBUG */
+
+static bool
+dhdsdio_chipmatch(uint16 chipid)
+{
+ if (chipid == BCM4325_CHIP_ID)
+ return TRUE;
+ if (chipid == BCM4329_CHIP_ID)
+ return TRUE;
+ if (chipid == BCM4315_CHIP_ID)
+ return TRUE;
+ if (chipid == BCM4319_CHIP_ID)
+ return TRUE;
+ return FALSE;
+}
+
+static void *
+dhdsdio_probe(uint16 venid, uint16 devid, uint16 bus_no, uint16 slot,
+ uint16 func, uint bustype, void *regsva, osl_t * osh, void *sdh)
+{
+ int ret;
+ dhd_bus_t *bus;
+
+ /* Init global variables at run-time, not as part of the declaration.
+ * This is required to support init/de-init of the driver. Initialization
+ * of globals as part of the declaration results in non-deterministic
+ * behavior since the value of the globals may be different on the
+ * first time that the driver is initialized vs subsequent initializations.
+ */
+ dhd_txbound = DHD_TXBOUND;
+ dhd_rxbound = DHD_RXBOUND;
+ dhd_alignctl = TRUE;
+ sd1idle = TRUE;
+ dhd_readahead = TRUE;
+ retrydata = FALSE;
+ dhd_doflow = FALSE;
+ dhd_dongle_memsize = 0;
+ dhd_txminmax = DHD_TXMINMAX;
+
+ forcealign = TRUE;
+
+
+ dhd_common_init();
+
+ DHD_TRACE(("%s: Enter\n", __FUNCTION__));
+ DHD_INFO(("%s: venid 0x%04x devid 0x%04x\n", __FUNCTION__, venid, devid));
+
+ /* We make assumptions about address window mappings */
+ ASSERT((uintptr)regsva == SI_ENUM_BASE);
+
+ /* BCMSDH passes venid and devid based on CIS parsing -- but low-power start
+ * means early parse could fail, so here we should get either an ID
+ * we recognize OR (-1) indicating we must request power first.
+ */
+ /* Check the Vendor ID */
+ switch (venid) {
+ case 0x0000:
+ case VENDOR_BROADCOM:
+ break;
+ default:
+ DHD_ERROR(("%s: unknown vendor: 0x%04x\n",
+ __FUNCTION__, venid));
+ return NULL;
+ }
+
+ /* Check the Device ID and make sure it's one that we support */
+ switch (devid) {
+ case BCM4325_D11DUAL_ID: /* 4325 802.11a/g id */
+ case BCM4325_D11G_ID: /* 4325 802.11g 2.4Ghz band id */
+ case BCM4325_D11A_ID: /* 4325 802.11a 5Ghz band id */
+ DHD_INFO(("%s: found 4325 Dongle\n", __FUNCTION__));
+ break;
+ case BCM4329_D11NDUAL_ID: /* 4329 802.11n dualband device */
+ case BCM4329_D11N2G_ID: /* 4329 802.11n 2.4G device */
+ case BCM4329_D11N5G_ID: /* 4329 802.11n 5G device */
+ case 0x4329:
+ DHD_INFO(("%s: found 4329 Dongle\n", __FUNCTION__));
+ break;
+ case BCM4315_D11DUAL_ID: /* 4315 802.11a/g id */
+ case BCM4315_D11G_ID: /* 4315 802.11g id */
+ case BCM4315_D11A_ID: /* 4315 802.11a id */
+ DHD_INFO(("%s: found 4315 Dongle\n", __FUNCTION__));
+ break;
+ case BCM4319_D11N_ID: /* 4319 802.11n id */
+ case BCM4319_D11N2G_ID: /* 4319 802.11n2g id */
+ case BCM4319_D11N5G_ID: /* 4319 802.11n5g id */
+ DHD_INFO(("%s: found 4319 Dongle\n", __FUNCTION__));
+ break;
+ case 0:
+ DHD_INFO(("%s: allow device id 0, will check chip internals\n",
+ __FUNCTION__));
+ break;
+
+ default:
+ DHD_ERROR(("%s: skipping 0x%04x/0x%04x, not a dongle\n",
+ __FUNCTION__, venid, devid));
+ return NULL;
+ }
+
+ if (osh == NULL) {
+ /* Ask the OS interface part for an OSL handle */
+ if (!(osh = dhd_osl_attach(sdh, DHD_BUS))) {
+ DHD_ERROR(("%s: osl_attach failed!\n", __FUNCTION__));
+ return NULL;
+ }
+ }
+
+ /* Allocate private bus interface state */
+ if (!(bus = MALLOC(osh, sizeof(dhd_bus_t)))) {
+ DHD_ERROR(("%s: MALLOC of dhd_bus_t failed\n", __FUNCTION__));
+ goto fail;
+ }
+ bzero(bus, sizeof(dhd_bus_t));
+ bus->sdh = sdh;
+ bus->cl_devid = (uint16)devid;
+ bus->bus = DHD_BUS;
+ bus->tx_seq = SDPCM_SEQUENCE_WRAP - 1;
+ bus->usebufpool = FALSE; /* Use bufpool if allocated, else use locally malloced rxbuf */
+
+ /* attempt to attach to the dongle */
+ if (!(dhdsdio_probe_attach(bus, osh, sdh, regsva, devid))) {
+ DHD_ERROR(("%s: dhdsdio_probe_attach failed\n", __FUNCTION__));
+ goto fail;
+ }
+
+ /* Attach to the dhd/OS/network interface */
+ if (!(bus->dhd = dhd_attach(osh, bus, SDPCM_RESERVE))) {
+ DHD_ERROR(("%s: dhd_attach failed\n", __FUNCTION__));
+ goto fail;
+ }
+
+ /* Allocate buffers */
+ if (!(dhdsdio_probe_malloc(bus, osh, sdh))) {
+ DHD_ERROR(("%s: dhdsdio_probe_malloc failed\n", __FUNCTION__));
+ goto fail;
+ }
+
+ if (!(dhdsdio_probe_init(bus, osh, sdh))) {
+ DHD_ERROR(("%s: dhdsdio_probe_init failed\n", __FUNCTION__));
+ goto fail;
+ }
+
+ /* Register interrupt callback, but mask it (not operational yet). */
+ DHD_INTR(("%s: disable SDIO interrupts (not interested yet)\n", __FUNCTION__));
+ bcmsdh_intr_disable(sdh);
+ if ((ret = bcmsdh_intr_reg(sdh, dhdsdio_isr, bus)) != 0) {
+ DHD_ERROR(("%s: FAILED: bcmsdh_intr_reg returned %d\n",
+ __FUNCTION__, ret));
+ goto fail;
+ }
+ DHD_INTR(("%s: registered SDIO interrupt function ok\n", __FUNCTION__));
+
+ DHD_INFO(("%s: completed!!\n", __FUNCTION__));
+
+
+ /* if firmware path present try to download and bring up bus */
+ if ((ret = dhd_bus_start(bus->dhd)) != 0) {
+#if 1
+ DHD_ERROR(("%s: failed\n", __FUNCTION__));
+ goto fail;
+#else
+ if (ret == BCME_NOTUP) {
+ DHD_ERROR(("%s: dongle is not responding\n", __FUNCTION__));
+ goto fail;
+ }
+#endif
+ }
+ /* Ok, have the per-port tell the stack we're open for business */
+ if (dhd_net_attach(bus->dhd, 0) != 0) {
+ DHD_ERROR(("%s: Net attach failed!!\n", __FUNCTION__));
+ goto fail;
+ }
+
+ return bus;
+
+fail:
+ dhdsdio_release(bus, osh);
+ return NULL;
+}
+
+
+static bool
+dhdsdio_probe_attach(struct dhd_bus *bus, osl_t *osh, void *sdh, void *regsva,
+ uint16 devid)
+{
+ uint8 clkctl = 0;
+ int err = 0;
+
+ bus->alp_only = TRUE;
+
+ /* Return the window to backplane enumeration space for core access */
+ if (dhdsdio_set_siaddr_window(bus, SI_ENUM_BASE)) {
+ DHD_ERROR(("%s: FAILED to return to SI_ENUM_BASE\n", __FUNCTION__));
+ }
+
+#ifdef DHD_DEBUG
+ printf("F1 signature read @0x18000000=0x%4x\n",
+ bcmsdh_reg_read(bus->sdh, SI_ENUM_BASE, 4));
+
+
+#endif /* DHD_DEBUG */
+
+
+ /* Force PLL off until si_attach() programs PLL control regs */
+
+
+
+ bcmsdh_cfg_write(sdh, SDIO_FUNC_1, SBSDIO_FUNC1_CHIPCLKCSR, DHD_INIT_CLKCTL1, &err);
+ if (!err)
+ clkctl = bcmsdh_cfg_read(sdh, SDIO_FUNC_1, SBSDIO_FUNC1_CHIPCLKCSR, &err);
+
+ if (err || ((clkctl & ~SBSDIO_AVBITS) != DHD_INIT_CLKCTL1)) {
+ DHD_ERROR(("dhdsdio_probe: ChipClkCSR access: err %d wrote 0x%02x read 0x%02x\n",
+ err, DHD_INIT_CLKCTL1, clkctl));
+ goto fail;
+ }
+
+
+#ifdef DHD_DEBUG
+ if (DHD_INFO_ON()) {
+ uint fn, numfn;
+ uint8 *cis[SDIOD_MAX_IOFUNCS];
+ int err = 0;
+
+ numfn = bcmsdh_query_iofnum(sdh);
+ ASSERT(numfn <= SDIOD_MAX_IOFUNCS);
+
+ /* Make sure ALP is available before trying to read CIS */
+ SPINWAIT(((clkctl = bcmsdh_cfg_read(sdh, SDIO_FUNC_1,
+ SBSDIO_FUNC1_CHIPCLKCSR, NULL)),
+ !SBSDIO_ALPAV(clkctl)), PMU_MAX_TRANSITION_DLY);
+
+ /* Now request ALP be put on the bus */
+ bcmsdh_cfg_write(sdh, SDIO_FUNC_1, SBSDIO_FUNC1_CHIPCLKCSR,
+ DHD_INIT_CLKCTL2, &err);
+ OSL_DELAY(65);
+
+ for (fn = 0; fn <= numfn; fn++) {
+ if (!(cis[fn] = MALLOC(osh, SBSDIO_CIS_SIZE_LIMIT))) {
+ DHD_INFO(("dhdsdio_probe: fn %d cis malloc failed\n", fn));
+ break;
+ }
+ bzero(cis[fn], SBSDIO_CIS_SIZE_LIMIT);
+
+ if ((err = bcmsdh_cis_read(sdh, fn, cis[fn], SBSDIO_CIS_SIZE_LIMIT))) {
+ DHD_INFO(("dhdsdio_probe: fn %d cis read err %d\n", fn, err));
+ MFREE(osh, cis[fn], SBSDIO_CIS_SIZE_LIMIT);
+ break;
+ }
+ dhd_dump_cis(fn, cis[fn]);
+ }
+
+ while (fn-- > 0) {
+ ASSERT(cis[fn]);
+ MFREE(osh, cis[fn], SBSDIO_CIS_SIZE_LIMIT);
+ }
+
+ if (err) {
+ DHD_ERROR(("dhdsdio_probe: failure reading or parsing CIS\n"));
+ goto fail;
+ }
+ }
+#endif /* DHD_DEBUG */
+
+ /* si_attach() will provide an SI handle and scan the backplane */
+ if (!(bus->sih = si_attach((uint)devid, osh, regsva, DHD_BUS, sdh,
+ &bus->vars, &bus->varsz))) {
+ DHD_ERROR(("%s: si_attach failed!\n", __FUNCTION__));
+ goto fail;
+ }
+
+ bcmsdh_chipinfo(sdh, bus->sih->chip, bus->sih->chiprev);
+
+ if (!dhdsdio_chipmatch((uint16)bus->sih->chip)) {
+ DHD_ERROR(("%s: unsupported chip: 0x%04x\n",
+ __FUNCTION__, bus->sih->chip));
+ goto fail;
+ }
+
+ si_sdiod_drive_strength_init(bus->sih, osh, dhd_sdiod_drive_strength);
+
+
+ /* Get info on the ARM and SOCRAM cores... */
+ if (!DHD_NOPMU(bus)) {
+ if ((si_setcore(bus->sih, ARM7S_CORE_ID, 0)) ||
+ (si_setcore(bus->sih, ARMCM3_CORE_ID, 0))) {
+ bus->armrev = si_corerev(bus->sih);
+ } else {
+ DHD_ERROR(("%s: failed to find ARM core!\n", __FUNCTION__));
+ goto fail;
+ }
+ if (!(bus->orig_ramsize = si_socram_size(bus->sih))) {
+ DHD_ERROR(("%s: failed to find SOCRAM memory!\n", __FUNCTION__));
+ goto fail;
+ }
+ bus->ramsize = bus->orig_ramsize;
+ if (dhd_dongle_memsize)
+ dhd_dongle_setmemsize(bus, dhd_dongle_memsize);
+
+ DHD_ERROR(("DHD: dongle ram size is set to %d(orig %d)\n",
+ bus->ramsize, bus->orig_ramsize));
+ }
+
+ /* ...but normally deal with the SDPCMDEV core */
+ if (!(bus->regs = si_setcore(bus->sih, PCMCIA_CORE_ID, 0)) &&
+ !(bus->regs = si_setcore(bus->sih, SDIOD_CORE_ID, 0))) {
+ DHD_ERROR(("%s: failed to find SDIODEV core!\n", __FUNCTION__));
+ goto fail;
+ }
+ bus->sdpcmrev = si_corerev(bus->sih);
+
+ /* Set core control so an SDIO reset does a backplane reset */
+ OR_REG(osh, &bus->regs->corecontrol, CC_BPRESEN);
+
+ pktq_init(&bus->txq, (PRIOMASK + 1), QLEN);
+
+ /* Locate an appropriately-aligned portion of hdrbuf */
+ bus->rxhdr = (uint8 *)ROUNDUP((uintptr)&bus->hdrbuf[0], DHD_SDALIGN);
+
+ /* Set the poll and/or interrupt flags */
+ bus->intr = (bool)dhd_intr;
+ if ((bus->poll = (bool)dhd_poll))
+ bus->pollrate = 1;
+
+ return TRUE;
+
+fail:
+ return FALSE;
+}
+
+static bool
+dhdsdio_probe_malloc(dhd_bus_t *bus, osl_t *osh, void *sdh)
+{
+ DHD_TRACE(("%s: Enter\n", __FUNCTION__));
+
+#ifndef DHD_USE_STATIC_BUF
+ if (bus->dhd->maxctl) {
+ bus->rxblen = ROUNDUP((bus->dhd->maxctl + SDPCM_HDRLEN), ALIGNMENT) + DHD_SDALIGN;
+ if (!(bus->rxbuf = MALLOC(osh, bus->rxblen))) {
+ DHD_ERROR(("%s: MALLOC of %d-byte rxbuf failed\n",
+ __FUNCTION__, bus->rxblen));
+ goto fail;
+ }
+ }
+
+ /* Allocate buffer to receive glomed packet */
+ if (!(bus->databuf = MALLOC(osh, MAX_DATA_BUF))) {
+ DHD_ERROR(("%s: MALLOC of %d-byte databuf failed\n",
+ __FUNCTION__, MAX_DATA_BUF));
+ /* release rxbuf which was already located as above */
+ if (!bus->rxblen) MFREE(osh, bus->rxbuf, bus->rxblen);
+ goto fail;
+ }
+#else
+ if (bus->dhd->maxctl) {
+ bus->rxblen = ROUNDUP((bus->dhd->maxctl + SDPCM_HDRLEN), ALIGNMENT) + DHD_SDALIGN;
+ if (!(bus->rxbuf = dhd_os_prealloc(DHD_PREALLOC_RXBUF, bus->rxblen))) {
+ DHD_ERROR(("%s: MALLOC of %d-byte rxbuf failed\n",
+ __FUNCTION__, bus->rxblen));
+ goto fail;
+ }
+ }
+ /* Allocate buffer to receive glomed packet */
+ if (!(bus->databuf = dhd_os_prealloc(DHD_PREALLOC_DATABUF, MAX_DATA_BUF))) {
+ DHD_ERROR(("%s: MALLOC of %d-byte databuf failed\n",
+ __FUNCTION__, MAX_DATA_BUF));
+ goto fail;
+ }
+#endif /* DHD_USE_STATIC_BUF */
+
+ /* Align the buffer */
+ if ((uintptr)bus->databuf % DHD_SDALIGN)
+ bus->dataptr = bus->databuf + (DHD_SDALIGN - ((uintptr)bus->databuf % DHD_SDALIGN));
+ else
+ bus->dataptr = bus->databuf;
+
+ return TRUE;
+
+fail:
+ return FALSE;
+}
+
+
+static bool
+dhdsdio_probe_init(dhd_bus_t *bus, osl_t *osh, void *sdh)
+{
+ int32 fnum;
+
+ DHD_TRACE(("%s: Enter\n", __FUNCTION__));
+
+#ifdef SDTEST
+ dhdsdio_pktgen_init(bus);
+#endif /* SDTEST */
+
+ /* Disable F2 to clear any intermediate frame state on the dongle */
+ bcmsdh_cfg_write(sdh, SDIO_FUNC_0, SDIOD_CCCR_IOEN, SDIO_FUNC_ENABLE_1, NULL);
+
+ bus->dhd->busstate = DHD_BUS_DOWN;
+ bus->sleeping = FALSE;
+ bus->rxflow = FALSE;
+ bus->prev_rxlim_hit = 0;
+
+
+ /* Done with backplane-dependent accesses, can drop clock... */
+ bcmsdh_cfg_write(sdh, SDIO_FUNC_1, SBSDIO_FUNC1_CHIPCLKCSR, 0, NULL);
+
+ /* ...and initialize clock/power states */
+ bus->clkstate = CLK_SDONLY;
+ bus->idletime = (int32)dhd_idletime;
+ bus->idleclock = DHD_IDLE_ACTIVE;
+
+ /* Query the SD clock speed */
+ if (bcmsdh_iovar_op(sdh, "sd_divisor", NULL, 0,
+ &bus->sd_divisor, sizeof(int32), FALSE) != BCME_OK) {
+ DHD_ERROR(("%s: fail on %s get\n", __FUNCTION__, "sd_divisor"));
+ bus->sd_divisor = -1;
+ } else {
+ DHD_INFO(("%s: Initial value for %s is %d\n",
+ __FUNCTION__, "sd_divisor", bus->sd_divisor));
+ }
+
+ /* Query the SD bus mode */
+ if (bcmsdh_iovar_op(sdh, "sd_mode", NULL, 0,
+ &bus->sd_mode, sizeof(int32), FALSE) != BCME_OK) {
+ DHD_ERROR(("%s: fail on %s get\n", __FUNCTION__, "sd_mode"));
+ bus->sd_mode = -1;
+ } else {
+ DHD_INFO(("%s: Initial value for %s is %d\n",
+ __FUNCTION__, "sd_mode", bus->sd_mode));
+ }
+
+ /* Query the F2 block size, set roundup accordingly */
+ fnum = 2;
+ if (bcmsdh_iovar_op(sdh, "sd_blocksize", &fnum, sizeof(int32),
+ &bus->blocksize, sizeof(int32), FALSE) != BCME_OK) {
+ bus->blocksize = 0;
+ DHD_ERROR(("%s: fail on %s get\n", __FUNCTION__, "sd_blocksize"));
+ } else {
+ DHD_INFO(("%s: Initial value for %s is %d\n",
+ __FUNCTION__, "sd_blocksize", bus->blocksize));
+ }
+ bus->roundup = MIN(max_roundup, bus->blocksize);
+
+ /* Query if bus module supports packet chaining, default to use if supported */
+ if (bcmsdh_iovar_op(sdh, "sd_rxchain", NULL, 0,
+ &bus->sd_rxchain, sizeof(int32), FALSE) != BCME_OK) {
+ bus->sd_rxchain = FALSE;
+ } else {
+ DHD_INFO(("%s: bus module (through bcmsdh API) %s chaining\n",
+ __FUNCTION__, (bus->sd_rxchain ? "supports" : "does not support")));
+ }
+ bus->use_rxchain = (bool)bus->sd_rxchain;
+
+ return TRUE;
+}
+
+bool
+dhd_bus_download_firmware(struct dhd_bus *bus, osl_t *osh,
+ char *fw_path, char *nv_path)
+{
+ bool ret;
+ bus->fw_path = fw_path;
+ bus->nv_path = nv_path;
+
+ ret = dhdsdio_download_firmware(bus, osh, bus->sdh);
+
+ return ret;
+}
+
+static bool
+dhdsdio_download_firmware(struct dhd_bus *bus, osl_t *osh, void *sdh)
+{
+ bool ret;
+
+ /* Download the firmware */
+ dhd_os_wake_lock(bus->dhd);
+ dhdsdio_clkctl(bus, CLK_AVAIL, FALSE);
+
+ ret = _dhdsdio_download_firmware(bus) == 0;
+
+ dhdsdio_clkctl(bus, CLK_SDONLY, FALSE);
+ dhd_os_wake_unlock(bus->dhd);
+ return ret;
+}
+
+/* Detach and free everything */
+static void
+dhdsdio_release(dhd_bus_t *bus, osl_t *osh)
+{
+ DHD_TRACE(("%s: Enter\n", __FUNCTION__));
+
+ if (bus) {
+ ASSERT(osh);
+
+
+ /* De-register interrupt handler */
+ bcmsdh_intr_disable(bus->sdh);
+ bcmsdh_intr_dereg(bus->sdh);
+
+ if (bus->dhd) {
+
+ dhdsdio_release_dongle(bus, osh);
+
+ dhd_detach(bus->dhd);
+ bus->dhd = NULL;
+ }
+
+ dhdsdio_release_malloc(bus, osh);
+
+
+ MFREE(osh, bus, sizeof(dhd_bus_t));
+ }
+
+ if (osh)
+ dhd_osl_detach(osh);
+
+ DHD_TRACE(("%s: Disconnected\n", __FUNCTION__));
+}
+
+static void
+dhdsdio_release_malloc(dhd_bus_t *bus, osl_t *osh)
+{
+ DHD_TRACE(("%s: Enter\n", __FUNCTION__));
+
+ if (bus->dhd && bus->dhd->dongle_reset)
+ return;
+
+ if (bus->rxbuf) {
+#ifndef DHD_USE_STATIC_BUF
+ MFREE(osh, bus->rxbuf, bus->rxblen);
+#endif
+ bus->rxctl = bus->rxbuf = NULL;
+ bus->rxlen = 0;
+ }
+
+ if (bus->databuf) {
+#ifndef DHD_USE_STATIC_BUF
+ MFREE(osh, bus->databuf, MAX_DATA_BUF);
+#endif
+ bus->databuf = NULL;
+ }
+}
+
+
+static void
+dhdsdio_release_dongle(dhd_bus_t *bus, osl_t *osh)
+{
+ DHD_TRACE(("%s: Enter\n", __FUNCTION__));
+
+ if (bus->dhd && bus->dhd->dongle_reset)
+ return;
+
+ if (bus->sih) {
+ dhdsdio_clkctl(bus, CLK_AVAIL, FALSE);
+#if !defined(BCMLXSDMMC)
+ si_watchdog(bus->sih, 4);
+#endif /* !defined(BCMLXSDMMC) */
+ dhdsdio_clkctl(bus, CLK_NONE, FALSE);
+ si_detach(bus->sih);
+ if (bus->vars && bus->varsz)
+ MFREE(osh, bus->vars, bus->varsz);
+ bus->vars = NULL;
+ }
+
+ DHD_TRACE(("%s: Disconnected\n", __FUNCTION__));
+}
+
+static void
+dhdsdio_disconnect(void *ptr)
+{
+ dhd_bus_t *bus = (dhd_bus_t *)ptr;
+
+ DHD_TRACE(("%s: Enter\n", __FUNCTION__));
+
+ if (bus) {
+ ASSERT(bus->dhd);
+ dhdsdio_release(bus, bus->dhd->osh);
+ }
+
+ DHD_TRACE(("%s: Disconnected\n", __FUNCTION__));
+}
+
+
+/* Register/Unregister functions are called by the main DHD entry
+ * point (e.g. module insertion) to link with the bus driver, in
+ * order to look for or await the device.
+ */
+
+static bcmsdh_driver_t dhd_sdio = {
+ dhdsdio_probe,
+ dhdsdio_disconnect
+};
+
+int
+dhd_bus_register(void)
+{
+ DHD_TRACE(("%s: Enter\n", __FUNCTION__));
+
+ return bcmsdh_register(&dhd_sdio);
+}
+
+void
+dhd_bus_unregister(void)
+{
+ DHD_TRACE(("%s: Enter\n", __FUNCTION__));
+
+ bcmsdh_unregister();
+}
+
+#ifdef BCMEMBEDIMAGE
+static int
+dhdsdio_download_code_array(struct dhd_bus *bus)
+{
+ int bcmerror = -1;
+ int offset = 0;
+
+ DHD_INFO(("%s: download embedded firmware...\n", __FUNCTION__));
+
+ /* Download image */
+ while ((offset + MEMBLOCK) < sizeof(dlarray)) {
+ bcmerror = dhdsdio_membytes(bus, TRUE, offset, dlarray + offset, MEMBLOCK);
+ if (bcmerror) {
+ DHD_ERROR(("%s: error %d on writing %d membytes at 0x%08x\n",
+ __FUNCTION__, bcmerror, MEMBLOCK, offset));
+ goto err;
+ }
+
+ offset += MEMBLOCK;
+ }
+
+ if (offset < sizeof(dlarray)) {
+ bcmerror = dhdsdio_membytes(bus, TRUE, offset,
+ dlarray + offset, sizeof(dlarray) - offset);
+ if (bcmerror) {
+ DHD_ERROR(("%s: error %d on writing %d membytes at 0x%08x\n",
+ __FUNCTION__, bcmerror, sizeof(dlarray) - offset, offset));
+ goto err;
+ }
+ }
+
+#ifdef DHD_DEBUG
+ /* Upload and compare the downloaded code */
+ {
+ unsigned char *ularray;
+
+ ularray = MALLOC(bus->dhd->osh, bus->ramsize);
+ /* Upload image to verify downloaded contents. */
+ offset = 0;
+ memset(ularray, 0xaa, bus->ramsize);
+ while ((offset + MEMBLOCK) < sizeof(dlarray)) {
+ bcmerror = dhdsdio_membytes(bus, FALSE, offset, ularray + offset, MEMBLOCK);
+ if (bcmerror) {
+ DHD_ERROR(("%s: error %d on reading %d membytes at 0x%08x\n",
+ __FUNCTION__, bcmerror, MEMBLOCK, offset));
+ goto err;
+ }
+
+ offset += MEMBLOCK;
+ }
+
+ if (offset < sizeof(dlarray)) {
+ bcmerror = dhdsdio_membytes(bus, FALSE, offset,
+ ularray + offset, sizeof(dlarray) - offset);
+ if (bcmerror) {
+ DHD_ERROR(("%s: error %d on reading %d membytes at 0x%08x\n",
+ __FUNCTION__, bcmerror, sizeof(dlarray) - offset, offset));
+ goto err;
+ }
+ }
+
+ if (memcmp(dlarray, ularray, sizeof(dlarray))) {
+ DHD_ERROR(("%s: Downloaded image is corrupted.\n", __FUNCTION__));
+ ASSERT(0);
+ goto err;
+ } else
+ DHD_ERROR(("%s: Download, Upload and compare succeeded.\n", __FUNCTION__));
+
+ MFREE(bus->dhd->osh, ularray, bus->ramsize);
+ }
+#endif /* DHD_DEBUG */
+
+err:
+ return bcmerror;
+}
+#endif /* BCMEMBEDIMAGE */
+
+static int
+dhdsdio_download_code_file(struct dhd_bus *bus, char *fw_path)
+{
+ int bcmerror = -1;
+ int offset = 0;
+ uint len;
+ void *image = NULL;
+ uint8 *memblock = NULL, *memptr;
+
+ DHD_INFO(("%s: download firmware %s\n", __FUNCTION__, fw_path));
+
+ image = dhd_os_open_image(fw_path);
+ if (image == NULL)
+ goto err;
+
+ memptr = memblock = MALLOC(bus->dhd->osh, MEMBLOCK + DHD_SDALIGN);
+ if (memblock == NULL) {
+ DHD_ERROR(("%s: Failed to allocate memory %d bytes\n", __FUNCTION__, MEMBLOCK));
+ goto err;
+ }
+ if ((uint32)(uintptr)memblock % DHD_SDALIGN)
+ memptr += (DHD_SDALIGN - ((uint32)(uintptr)memblock % DHD_SDALIGN));
+
+ /* Download image */
+ while ((len = dhd_os_get_image_block((char*)memptr, MEMBLOCK, image))) {
+ bcmerror = dhdsdio_membytes(bus, TRUE, offset, memptr, len);
+ if (bcmerror) {
+ DHD_ERROR(("%s: error %d on writing %d membytes at 0x%08x\n",
+ __FUNCTION__, bcmerror, MEMBLOCK, offset));
+ goto err;
+ }
+
+ offset += MEMBLOCK;
+ }
+
+err:
+ if (memblock)
+ MFREE(bus->dhd->osh, memblock, MEMBLOCK + DHD_SDALIGN);
+
+ if (image)
+ dhd_os_close_image(image);
+
+ return bcmerror;
+}
+
+/*
+ * ProcessVars:Takes a buffer of "<var>=<value>\n" lines read from a file and ending in a NUL.
+ * Removes carriage returns, empty lines, comment lines, and converts newlines to NULs.
+ * Shortens buffer as needed and pads with NULs. End of buffer is marked by two NULs.
+*/
+
+static uint
+process_nvram_vars(char *varbuf, uint len)
+{
+ char *dp;
+ bool findNewline;
+ int column;
+ uint buf_len, n;
+
+ dp = varbuf;
+
+ findNewline = FALSE;
+ column = 0;
+
+ for (n = 0; n < len; n++) {
+ if (varbuf[n] == 0)
+ break;
+ if (varbuf[n] == '\r')
+ continue;
+ if (findNewline && varbuf[n] != '\n')
+ continue;
+ findNewline = FALSE;
+ if (varbuf[n] == '#') {
+ findNewline = TRUE;
+ continue;
+ }
+ if (varbuf[n] == '\n') {
+ if (column == 0)
+ continue;
+ *dp++ = 0;
+ column = 0;
+ continue;
+ }
+ *dp++ = varbuf[n];
+ column++;
+ }
+ buf_len = dp - varbuf;
+
+ while (dp < varbuf + n)
+ *dp++ = 0;
+
+ return buf_len;
+}
+
+/*
+ EXAMPLE: nvram_array
+ nvram_arry format:
+ name=value
+ Use carriage return at the end of each assignment, and an empty string with
+ carriage return at the end of array.
+
+ For example:
+ unsigned char nvram_array[] = {"name1=value1\n", "name2=value2\n", "\n"};
+ Hex values start with 0x, and mac addr format: xx:xx:xx:xx:xx:xx.
+
+ Search "EXAMPLE: nvram_array" to see how the array is activated.
+*/
+
+void
+dhd_bus_set_nvram_params(struct dhd_bus * bus, const char *nvram_params)
+{
+ bus->nvram_params = nvram_params;
+}
+
+static int
+dhdsdio_download_nvram(struct dhd_bus *bus)
+{
+ int bcmerror = -1;
+ uint len;
+ void * image = NULL;
+ char * memblock = NULL;
+ char *bufp;
+ char *nv_path;
+ bool nvram_file_exists;
+
+ nv_path = bus->nv_path;
+
+ nvram_file_exists = ((nv_path != NULL) && (nv_path[0] != '\0'));
+ if (!nvram_file_exists && (bus->nvram_params == NULL))
+ return (0);
+
+ if (nvram_file_exists) {
+ image = dhd_os_open_image(nv_path);
+ if (image == NULL)
+ goto err;
+ }
+
+ memblock = MALLOC(bus->dhd->osh, MEMBLOCK);
+ if (memblock == NULL) {
+ DHD_ERROR(("%s: Failed to allocate memory %d bytes\n",
+ __FUNCTION__, MEMBLOCK));
+ goto err;
+ }
+
+ /* Download variables */
+ if (nvram_file_exists) {
+ len = dhd_os_get_image_block(memblock, MEMBLOCK, image);
+ }
+ else {
+ len = strlen(bus->nvram_params);
+ ASSERT(len <= MEMBLOCK);
+ if (len > MEMBLOCK)
+ len = MEMBLOCK;
+ memcpy(memblock, bus->nvram_params, len);
+ }
+
+ if (len > 0 && len < MEMBLOCK) {
+ bufp = (char *)memblock;
+ bufp[len] = 0;
+ len = process_nvram_vars(bufp, len);
+ bufp += len;
+ *bufp++ = 0;
+ if (len)
+ bcmerror = dhdsdio_downloadvars(bus, memblock, len + 1);
+ if (bcmerror) {
+ DHD_ERROR(("%s: error downloading vars: %d\n",
+ __FUNCTION__, bcmerror));
+ }
+ }
+ else {
+ DHD_ERROR(("%s: error reading nvram file: %d\n",
+ __FUNCTION__, len));
+ bcmerror = BCME_SDIO_ERROR;
+ }
+
+err:
+ if (memblock)
+ MFREE(bus->dhd->osh, memblock, MEMBLOCK);
+
+ if (image)
+ dhd_os_close_image(image);
+
+ return bcmerror;
+}
+
+static int
+_dhdsdio_download_firmware(struct dhd_bus *bus)
+{
+ int bcmerror = -1;
+
+ bool embed = FALSE; /* download embedded firmware */
+ bool dlok = FALSE; /* download firmware succeeded */
+
+ /* Out immediately if no image to download */
+ if ((bus->fw_path == NULL) || (bus->fw_path[0] == '\0')) {
+#ifdef BCMEMBEDIMAGE
+ embed = TRUE;
+#else
+ return bcmerror;
+#endif
+ }
+
+ /* Keep arm in reset */
+ if (dhdsdio_download_state(bus, TRUE)) {
+ DHD_ERROR(("%s: error placing ARM core in reset\n", __FUNCTION__));
+ goto err;
+ }
+
+ /* External image takes precedence if specified */
+ if ((bus->fw_path != NULL) && (bus->fw_path[0] != '\0')) {
+ if (dhdsdio_download_code_file(bus, bus->fw_path)) {
+ DHD_ERROR(("%s: dongle image file download failed\n", __FUNCTION__));
+#ifdef BCMEMBEDIMAGE
+ embed = TRUE;
+#else
+ goto err;
+#endif
+ }
+ else {
+ embed = FALSE;
+ dlok = TRUE;
+ }
+ }
+#ifdef BCMEMBEDIMAGE
+ if (embed) {
+ if (dhdsdio_download_code_array(bus)) {
+ DHD_ERROR(("%s: dongle image array download failed\n", __FUNCTION__));
+ goto err;
+ }
+ else {
+ dlok = TRUE;
+ }
+ }
+#endif
+ if (!dlok) {
+ DHD_ERROR(("%s: dongle image download failed\n", __FUNCTION__));
+ goto err;
+ }
+
+ /* EXAMPLE: nvram_array */
+ /* If a valid nvram_arry is specified as above, it can be passed down to dongle */
+ /* dhd_bus_set_nvram_params(bus, (char *)&nvram_array); */
+
+ /* External nvram takes precedence if specified */
+ if (dhdsdio_download_nvram(bus)) {
+ DHD_ERROR(("%s: dongle nvram file download failed\n", __FUNCTION__));
+ }
+
+ /* Take arm out of reset */
+ if (dhdsdio_download_state(bus, FALSE)) {
+ DHD_ERROR(("%s: error getting out of ARM core reset\n", __FUNCTION__));
+ goto err;
+ }
+
+ bcmerror = 0;
+
+err:
+ return bcmerror;
+}
+
+static int
+dhd_bcmsdh_recv_buf(dhd_bus_t *bus, uint32 addr, uint fn, uint flags, uint8 *buf, uint nbytes,
+ void *pkt, bcmsdh_cmplt_fn_t complete, void *handle)
+{
+ int status;
+
+ /* 4329: GSPI check */
+ status = bcmsdh_recv_buf(bus->sdh, addr, fn, flags, buf, nbytes, pkt, complete, handle);
+ return status;
+}
+
+static int
+dhd_bcmsdh_send_buf(dhd_bus_t *bus, uint32 addr, uint fn, uint flags, uint8 *buf, uint nbytes,
+ void *pkt, bcmsdh_cmplt_fn_t complete, void *handle)
+{
+ return (bcmsdh_send_buf(bus->sdh, addr, fn, flags, buf, nbytes, pkt, complete, handle));
+}
+
+uint
+dhd_bus_chip(struct dhd_bus *bus)
+{
+ ASSERT(bus->sih != NULL);
+ return bus->sih->chip;
+}
+
+void *
+dhd_bus_pub(struct dhd_bus *bus)
+{
+ return bus->dhd;
+}
+
+void *
+dhd_bus_txq(struct dhd_bus *bus)
+{
+ return &bus->txq;
+}
+
+uint
+dhd_bus_hdrlen(struct dhd_bus *bus)
+{
+ return SDPCM_HDRLEN;
+}
+
+int
+dhd_bus_devreset(dhd_pub_t *dhdp, uint8 flag)
+{
+ int bcmerror = 0;
+ dhd_bus_t *bus;
+
+ bus = dhdp->bus;
+
+ if (flag == TRUE) {
+ if (!bus->dhd->dongle_reset) {
+#if !defined(IGNORE_ETH0_DOWN)
+ /* Force flow control as protection when stop come before ifconfig_down */
+ dhd_txflowcontrol(bus->dhd, 0, ON);
+#endif /* !defined(IGNORE_ETH0_DOWN) */
+ /* save country settinng if was pre-setup with priv ioctl */
+ dhd_os_proto_block(dhdp);
+ dhdcdc_query_ioctl(bus->dhd, 0, WLC_GET_COUNTRY,
+ bus->dhd->country_code, sizeof(bus->dhd->country_code));
+ dhd_os_proto_unblock(dhdp);
+ /* Expect app to have torn down any connection before calling */
+ /* Stop the bus, disable F2 */
+ dhd_bus_stop(bus, FALSE);
+
+ /* Clean tx/rx buffer pointers, detach from the dongle */
+ dhdsdio_release_dongle(bus, bus->dhd->osh);
+
+ bus->dhd->dongle_reset = TRUE;
+ bus->dhd->up = FALSE;
+
+ DHD_TRACE(("%s: WLAN OFF DONE\n", __FUNCTION__));
+ /* App can now remove power from device */
+ } else
+ bcmerror = BCME_SDIO_ERROR;
+ } else {
+ /* App must have restored power to device before calling */
+
+ DHD_TRACE(("\n\n%s: == WLAN ON ==\n", __FUNCTION__));
+
+ if (bus->dhd->dongle_reset) {
+ /* Turn on WLAN */
+ /* Reset SD client */
+ bcmsdh_reset(bus->sdh);
+
+ /* Attempt to re-attach & download */
+ if (dhdsdio_probe_attach(bus, bus->dhd->osh, bus->sdh,
+ (uint32 *)SI_ENUM_BASE,
+ bus->cl_devid)) {
+ /* Attempt to download binary to the dongle */
+ if (dhdsdio_probe_init(bus, bus->dhd->osh, bus->sdh) &&
+ dhdsdio_download_firmware(bus, bus->dhd->osh, bus->sdh)) {
+
+ /* Re-init bus, enable F2 transfer */
+ dhd_bus_init((dhd_pub_t *) bus->dhd, FALSE);
+
+#if defined(OOB_INTR_ONLY)
+ dhd_enable_oob_intr(bus, TRUE);
+#endif /* defined(OOB_INTR_ONLY) */
+
+ bus->dhd->dongle_reset = FALSE;
+ bus->dhd->up = TRUE;
+
+#if !defined(IGNORE_ETH0_DOWN)
+ /* Restore flow control */
+ dhd_txflowcontrol(bus->dhd, 0, OFF);
+#endif
+
+ DHD_TRACE(("%s: WLAN ON DONE\n", __FUNCTION__));
+ } else
+ bcmerror = BCME_SDIO_ERROR;
+ } else
+ bcmerror = BCME_SDIO_ERROR;
+ } else {
+ bcmerror = BCME_NOTDOWN;
+ DHD_ERROR(("%s: Set DEVRESET=FALSE invoked when device is on\n",
+ __FUNCTION__));
+ bcmerror = BCME_SDIO_ERROR;
+ }
+ }
+ return bcmerror;
+}
projects / bootloader-ap.git / blobdiff