diff options
Diffstat (limited to 'freebsd/sys/dev/sdhci/sdhci.c')
| -rw-r--r-- | freebsd/sys/dev/sdhci/sdhci.c | 65 |
1 files changed, 45 insertions, 20 deletions
diff --git a/freebsd/sys/dev/sdhci/sdhci.c b/freebsd/sys/dev/sdhci/sdhci.c index 39b9dc91..ccbf5d85 100644 --- a/freebsd/sys/dev/sdhci/sdhci.c +++ b/freebsd/sys/dev/sdhci/sdhci.c @@ -92,27 +92,49 @@ SYSCTL_INT(_hw_sdhci, OID_AUTO, quirk_set, CTLFLAG_RWTUN, &sdhci_quirk_set, 0, #define WR_MULTI_4(slot, off, ptr, count) \ SDHCI_WRITE_MULTI_4((slot)->bus, (slot), (off), (ptr), (count)) +static void sdhci_acmd_irq(struct sdhci_slot *slot, uint16_t acmd_err); static void sdhci_card_poll(void *arg); static void sdhci_card_task(void *arg, int pending); +static void sdhci_cmd_irq(struct sdhci_slot *slot, uint32_t intmask); +static void sdhci_data_irq(struct sdhci_slot *slot, uint32_t intmask); static int sdhci_exec_tuning(struct sdhci_slot *slot, bool reset); +static void sdhci_handle_card_present_locked(struct sdhci_slot *slot, + bool is_present); +static void sdhci_finish_command(struct sdhci_slot *slot); +static void sdhci_init(struct sdhci_slot *slot); +static void sdhci_read_block_pio(struct sdhci_slot *slot); +static void sdhci_req_done(struct sdhci_slot *slot); static void sdhci_req_wakeup(struct mmc_request *req); +static void sdhci_reset(struct sdhci_slot *slot, uint8_t mask); static void sdhci_retune(void *arg); static void sdhci_set_clock(struct sdhci_slot *slot, uint32_t clock); +static void sdhci_set_power(struct sdhci_slot *slot, u_char power); +static void sdhci_set_transfer_mode(struct sdhci_slot *slot, + struct mmc_data *data); static void sdhci_start(struct sdhci_slot *slot); +static void sdhci_timeout(void *arg); +static void sdhci_start_command(struct sdhci_slot *slot, + struct mmc_command *cmd); static void sdhci_start_data(struct sdhci_slot *slot, struct mmc_data *data); +static void sdhci_write_block_pio(struct sdhci_slot *slot); +static void sdhci_transfer_pio(struct sdhci_slot *slot); #ifdef MMCCAM /* CAM-related */ -int sdhci_cam_get_possible_host_clock(struct sdhci_slot *slot, int proposed_clock); -static int sdhci_cam_update_ios(struct sdhci_slot *slot); -static int sdhci_cam_request(struct sdhci_slot *slot, union ccb *ccb); static void sdhci_cam_action(struct cam_sim *sim, union ccb *ccb); +static int sdhci_cam_get_possible_host_clock(struct sdhci_slot *slot, + int proposed_clock); +static void sdhci_cam_handle_mmcio(struct cam_sim *sim, union ccb *ccb); static void sdhci_cam_poll(struct cam_sim *sim); +static int sdhci_cam_request(struct sdhci_slot *slot, union ccb *ccb); static int sdhci_cam_settran_settings(struct sdhci_slot *slot, union ccb *ccb); +static int sdhci_cam_update_ios(struct sdhci_slot *slot); #endif /* helper routines */ static void sdhci_dumpregs(struct sdhci_slot *slot); +static void sdhci_getaddr(void *arg, bus_dma_segment_t *segs, int nsegs, + int error); static int slot_printf(struct sdhci_slot *slot, const char * fmt, ...) __printflike(2, 3); static uint32_t sdhci_tuning_intmask(struct sdhci_slot *slot); @@ -1562,20 +1584,19 @@ sdhci_set_transfer_mode(struct sdhci_slot *slot, struct mmc_data *data) return; mode = SDHCI_TRNS_BLK_CNT_EN; - if (data->len > 512) + if (data->len > 512) { mode |= SDHCI_TRNS_MULTI; - if (data->flags & MMC_DATA_READ) - mode |= SDHCI_TRNS_READ; + if (__predict_true( #ifdef MMCCAM - struct ccb_mmcio *mmcio; - mmcio = &slot->ccb->mmcio; - if (mmcio->stop.opcode == MMC_STOP_TRANSMISSION - && !(slot->quirks & SDHCI_QUIRK_BROKEN_AUTO_STOP)) - mode |= SDHCI_TRNS_ACMD12; + slot->ccb->mmcio.stop.opcode == MMC_STOP_TRANSMISSION && #else - if (slot->req->stop && !(slot->quirks & SDHCI_QUIRK_BROKEN_AUTO_STOP)) - mode |= SDHCI_TRNS_ACMD12; + slot->req->stop != NULL && #endif + !(slot->quirks & SDHCI_QUIRK_BROKEN_AUTO_STOP))) + mode |= SDHCI_TRNS_ACMD12; + } + if (data->flags & MMC_DATA_READ) + mode |= SDHCI_TRNS_READ; if (slot->flags & SDHCI_USE_DMA) mode |= SDHCI_TRNS_DMA; @@ -2158,18 +2179,16 @@ done: } static void -sdhci_acmd_irq(struct sdhci_slot *slot) +sdhci_acmd_irq(struct sdhci_slot *slot, uint16_t acmd_err) { - uint16_t err; - err = RD4(slot, SDHCI_ACMD12_ERR); if (!slot->curcmd) { slot_printf(slot, "Got AutoCMD12 error 0x%04x, but " - "there is no active command.\n", err); + "there is no active command.\n", acmd_err); sdhci_dumpregs(slot); return; } - slot_printf(slot, "Got AutoCMD12 error 0x%04x\n", err); + slot_printf(slot, "Got AutoCMD12 error 0x%04x\n", acmd_err); sdhci_reset(slot, SDHCI_RESET_CMD); } @@ -2177,6 +2196,7 @@ void sdhci_generic_intr(struct sdhci_slot *slot) { uint32_t intmask, present; + uint16_t val16; SDHCI_LOCK(slot); /* Read slot interrupt status. */ @@ -2190,6 +2210,7 @@ sdhci_generic_intr(struct sdhci_slot *slot) /* Handle tuning error interrupt. */ if (__predict_false(intmask & SDHCI_INT_TUNEERR)) { + WR4(slot, SDHCI_INT_STATUS, SDHCI_INT_TUNEERR); slot_printf(slot, "Tuning error indicated\n"); slot->retune_req |= SDHCI_RETUNE_REQ_RESET; if (slot->curcmd) { @@ -2227,8 +2248,10 @@ sdhci_generic_intr(struct sdhci_slot *slot) } /* Handle AutoCMD12 error interrupt. */ if (intmask & SDHCI_INT_ACMD12ERR) { + /* Clearing SDHCI_INT_ACMD12ERR may clear SDHCI_ACMD12_ERR. */ + val16 = RD2(slot, SDHCI_ACMD12_ERR); WR4(slot, SDHCI_INT_STATUS, SDHCI_INT_ACMD12ERR); - sdhci_acmd_irq(slot); + sdhci_acmd_irq(slot, val16); } /* Handle bus power interrupt. */ if (intmask & SDHCI_INT_BUS_POWER) { @@ -2574,7 +2597,9 @@ sdhci_cam_poll(struct cam_sim *sim) return; } -int sdhci_cam_get_possible_host_clock(struct sdhci_slot *slot, int proposed_clock) { +static int +sdhci_cam_get_possible_host_clock(struct sdhci_slot *slot, int proposed_clock) +{ int max_clock, clock, i; if (proposed_clock == 0) |