Date: Mon, 5 Jan 2009 19:40:09 +0000 (UTC) From: Alexander Motin <mav@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-7@freebsd.org Subject: svn commit: r186786 - stable/7/sys/dev/mmc Message-ID: <200901051940.n05Je9pD008934@svn.freebsd.org>
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Author: mav Date: Mon Jan 5 19:40:09 2009 New Revision: 186786 URL: http://svn.freebsd.org/changeset/base/186786 Log: Sync MMC/SD subsystem with HEAD. Add support for MMC and SDHC cards, high speed timing, wide bus, multiblock transfers and many other features. Modified: stable/7/sys/dev/mmc/bridge.h stable/7/sys/dev/mmc/mmc.c stable/7/sys/dev/mmc/mmcbrvar.h stable/7/sys/dev/mmc/mmcreg.h stable/7/sys/dev/mmc/mmcsd.c stable/7/sys/dev/mmc/mmcvar.h Modified: stable/7/sys/dev/mmc/bridge.h ============================================================================== --- stable/7/sys/dev/mmc/bridge.h Mon Jan 5 17:38:03 2009 (r186785) +++ stable/7/sys/dev/mmc/bridge.h Mon Jan 5 19:40:09 2009 (r186786) @@ -104,6 +104,10 @@ enum mmc_bus_width { bus_width_1 = 0, bus_width_4 = 2, bus_width_8 = 3 }; +enum mmc_bus_timing { + bus_timing_normal = 0, bus_timing_hs +}; + struct mmc_ios { uint32_t clock; /* Speed of the clock in Hz to move data */ enum mmc_vdd vdd; /* Voltage to apply to the power pins/ */ @@ -111,6 +115,7 @@ struct mmc_ios { enum mmc_chip_select chip_select; enum mmc_bus_width bus_width; enum mmc_power_mode power_mode; + enum mmc_bus_timing timing; }; enum mmc_card_mode { @@ -125,6 +130,7 @@ struct mmc_host { uint32_t caps; #define MMC_CAP_4_BIT_DATA (1 << 0) /* Can do 4-bit data transfers */ #define MMC_CAP_8_BIT_DATA (1 << 1) /* Can do 8-bit data transfers */ +#define MMC_CAP_HSPEED (1 << 2) /* Can do High Speed transfers */ enum mmc_card_mode mode; struct mmc_ios ios; /* Current state of the host */ }; Modified: stable/7/sys/dev/mmc/mmc.c ============================================================================== --- stable/7/sys/dev/mmc/mmc.c Mon Jan 5 17:38:03 2009 (r186785) +++ stable/7/sys/dev/mmc/mmc.c Mon Jan 5 19:40:09 2009 (r186786) @@ -61,6 +61,7 @@ __FBSDID("$FreeBSD$"); #include <sys/module.h> #include <sys/mutex.h> #include <sys/bus.h> +#include <sys/endian.h> #include <dev/mmc/mmcreg.h> #include <dev/mmc/mmcbrvar.h> @@ -82,10 +83,23 @@ struct mmc_softc { struct mmc_ivars { uint32_t raw_cid[4]; /* Raw bits of the CID */ uint32_t raw_csd[4]; /* Raw bits of the CSD */ + uint32_t raw_scr[2]; /* Raw bits of the SCR */ + uint8_t raw_ext_csd[512]; /* Raw bits of the EXT_CSD */ + uint32_t raw_sd_status[16]; /* Raw bits of the SD_STATUS */ uint16_t rca; enum mmc_card_mode mode; struct mmc_cid cid; /* cid decoded */ struct mmc_csd csd; /* csd decoded */ + struct mmc_scr scr; /* scr decoded */ + struct mmc_sd_status sd_status; /* SD_STATUS decoded */ + u_char read_only; /* True when the device is read-only */ + u_char bus_width; /* Bus width to use */ + u_char timing; /* Bus timing support */ + u_char high_cap; /* High Capacity card (block addressed) */ + uint32_t sec_count; /* Card capacity in 512byte blocks */ + uint32_t tran_speed; /* Max speed in normal mode */ + uint32_t hs_tran_speed; /* Max speed in high speed mode */ + uint32_t erase_sector; /* Card native erase sector size */ }; #define CMD_RETRIES 3 @@ -94,21 +108,32 @@ struct mmc_ivars { static int mmc_probe(device_t dev); static int mmc_attach(device_t dev); static int mmc_detach(device_t dev); +static int mmc_suspend(device_t dev); +static int mmc_resume(device_t dev); #define MMC_LOCK(_sc) mtx_lock(&(_sc)->sc_mtx) #define MMC_UNLOCK(_sc) mtx_unlock(&(_sc)->sc_mtx) -#define MMC_LOCK_INIT(_sc) \ - mtx_init(&_sc->sc_mtx, device_get_nameunit(_sc->dev), \ +#define MMC_LOCK_INIT(_sc) \ + mtx_init(&_sc->sc_mtx, device_get_nameunit(_sc->dev), \ "mmc", MTX_DEF) #define MMC_LOCK_DESTROY(_sc) mtx_destroy(&_sc->sc_mtx); #define MMC_ASSERT_LOCKED(_sc) mtx_assert(&_sc->sc_mtx, MA_OWNED); #define MMC_ASSERT_UNLOCKED(_sc) mtx_assert(&_sc->sc_mtx, MA_NOTOWNED); +static int mmc_calculate_clock(struct mmc_softc *sc); static void mmc_delayed_attach(void *); +static void mmc_power_down(struct mmc_softc *sc); static int mmc_wait_for_cmd(struct mmc_softc *sc, struct mmc_command *cmd, int retries); static int mmc_wait_for_command(struct mmc_softc *sc, uint32_t opcode, uint32_t arg, uint32_t flags, uint32_t *resp, int retries); +static int mmc_select_card(struct mmc_softc *sc, uint16_t rca); +static int mmc_set_card_bus_width(struct mmc_softc *sc, uint16_t rca, int width); +static int mmc_app_send_scr(struct mmc_softc *sc, uint16_t rca, uint32_t *rawscr); +static void mmc_app_decode_scr(uint32_t *raw_scr, struct mmc_scr *scr); +static int mmc_send_ext_csd(struct mmc_softc *sc, uint8_t *rawextcsd); +static void mmc_scan(struct mmc_softc *sc); +static int mmc_delete_cards(struct mmc_softc *sc); static void mmc_ms_delay(int ms) @@ -120,7 +145,7 @@ static int mmc_probe(device_t dev) { - device_set_desc(dev, "mmc/sd bus"); + device_set_desc(dev, "MMC/SD bus"); return (0); } @@ -145,35 +170,47 @@ static int mmc_detach(device_t dev) { struct mmc_softc *sc = device_get_softc(dev); - device_t *kids; - int i, nkid; - - /* kill children [ph33r]. -sorbo */ - if (device_get_children(sc->dev, &kids, &nkid) != 0) - return 0; - for (i = 0; i < nkid; i++) { - device_t kid = kids[i]; - void *ivar = device_get_ivars(kid); - - device_detach(kid); - device_delete_child(sc->dev, kid); - free(ivar, M_DEVBUF); - } - free(kids, M_TEMP); + int err; + if ((err = mmc_delete_cards(sc)) != 0) + return (err); + mmc_power_down(sc); MMC_LOCK_DESTROY(sc); - return 0; + return (0); +} + +static int +mmc_suspend(device_t dev) +{ + struct mmc_softc *sc = device_get_softc(dev); + int err; + + err = bus_generic_suspend(dev); + if (err) + return (err); + mmc_power_down(sc); + return (0); +} + +static int +mmc_resume(device_t dev) +{ + struct mmc_softc *sc = device_get_softc(dev); + + mmc_scan(sc); + return (bus_generic_resume(dev)); } static int mmc_acquire_bus(device_t busdev, device_t dev) { struct mmc_softc *sc; + struct mmc_ivars *ivar; int err; int rca; - err = MMCBR_ACQUIRE_HOST(device_get_parent(busdev), dev); + err = MMCBR_ACQUIRE_HOST(device_get_parent(busdev), busdev); if (err) return (err); sc = device_get_softc(busdev); @@ -184,24 +221,36 @@ mmc_acquire_bus(device_t busdev, device_ MMC_UNLOCK(sc); if (busdev != dev) { - // Keep track of the last rca that we've selected. If - // we're asked to do it again, don't. We never unselect - // unless the bus code itself wants the mmc bus. + /* + * Keep track of the last rca that we've selected. If + * we're asked to do it again, don't. We never + * unselect unless the bus code itself wants the mmc + * bus, and constantly reselecting causes problems. + */ rca = mmc_get_rca(dev); if (sc->last_rca != rca) { - mmc_wait_for_command(sc, MMC_SELECT_CARD, rca << 16, - MMC_RSP_R1 | MMC_CMD_AC, NULL, CMD_RETRIES); + mmc_select_card(sc, rca); sc->last_rca = rca; + /* Prepare bus width for the new card. */ + ivar = device_get_ivars(dev); + if (bootverbose) { + device_printf(busdev, + "setting bus width to %d bits\n", + (ivar->bus_width == bus_width_4) ? 4 : + (ivar->bus_width == bus_width_8) ? 8 : 1); + } + mmc_set_card_bus_width(sc, rca, ivar->bus_width); + mmcbr_set_bus_width(busdev, ivar->bus_width); + mmcbr_update_ios(busdev); } - // XXX should set bus width here? } else { - // If there's a card selected, stand down. + /* + * If there's a card selected, stand down. + */ if (sc->last_rca != 0) { - mmc_wait_for_command(sc, MMC_SELECT_CARD, 0, - MMC_RSP_R1 | MMC_CMD_AC, NULL, CMD_RETRIES); + mmc_select_card(sc, 0); sc->last_rca = 0; } - // XXX should set bus width here? } return (0); @@ -221,7 +270,7 @@ mmc_release_bus(device_t busdev, device_ if (sc->owner != dev) panic("mmc: you don't own the bus. game over."); MMC_UNLOCK(sc); - err = MMCBR_RELEASE_HOST(device_get_parent(busdev), dev); + err = MMCBR_RELEASE_HOST(device_get_parent(busdev), busdev); if (err) return (err); MMC_LOCK(sc); @@ -230,17 +279,11 @@ mmc_release_bus(device_t busdev, device_ return (0); } -static void -mmc_rescan_cards(struct mmc_softc *sc) -{ - /* XXX: Look at the children and see if they respond to status */ -} - static uint32_t mmc_select_vdd(struct mmc_softc *sc, uint32_t ocr) { - // XXX - return ocr; + + return (ocr & MMC_OCR_VOLTAGE); } static int @@ -250,7 +293,7 @@ mmc_highest_voltage(uint32_t ocr) for (i = 30; i >= 0; i--) if (ocr & (1 << i)) - return i; + return (i); return (-1); } @@ -259,31 +302,25 @@ mmc_wakeup(struct mmc_request *req) { struct mmc_softc *sc; -// printf("Wakeup for req %p done_data %p\n", req, req->done_data); sc = (struct mmc_softc *)req->done_data; MMC_LOCK(sc); req->flags |= MMC_REQ_DONE; - wakeup(req); MMC_UNLOCK(sc); + wakeup(req); } static int mmc_wait_for_req(struct mmc_softc *sc, struct mmc_request *req) { - int err; req->done = mmc_wakeup; req->done_data = sc; -// printf("Submitting request %p sc %p\n", req, sc); MMCBR_REQUEST(device_get_parent(sc->dev), sc->dev, req); MMC_LOCK(sc); - do { - err = msleep(req, &sc->sc_mtx, PZERO | PCATCH, "mmcreq", - hz / 10); - } while (!(req->flags & MMC_REQ_DONE) && err == EAGAIN); -// printf("Request %p done with error %d\n", req, err); + while ((req->flags & MMC_REQ_DONE) == 0) + msleep(req, &sc->sc_mtx, 0, "mmcreq", 0); MMC_UNLOCK(sc); - return (err); + return (0); } static int @@ -291,7 +328,7 @@ mmc_wait_for_request(device_t brdev, dev { struct mmc_softc *sc = device_get_softc(brdev); - return mmc_wait_for_req(sc, req); + return (mmc_wait_for_req(sc, req)); } static int @@ -302,9 +339,8 @@ mmc_wait_for_cmd(struct mmc_softc *sc, s memset(&mreq, 0, sizeof(mreq)); memset(cmd->resp, 0, sizeof(cmd->resp)); cmd->retries = retries; - cmd->data = NULL; mreq.cmd = cmd; -// printf("CMD: %x ARG %x\n", cmd->opcode, cmd->arg); +/* printf("CMD: %x ARG %x\n", cmd->opcode, cmd->arg); */ mmc_wait_for_req(sc, &mreq); return (cmd->error); } @@ -320,6 +356,7 @@ mmc_wait_for_app_cmd(struct mmc_softc *s appcmd.opcode = MMC_APP_CMD; appcmd.arg = rca << 16; appcmd.flags = MMC_RSP_R1 | MMC_CMD_AC; + appcmd.data = NULL; mmc_wait_for_cmd(sc, &appcmd, 0); err = appcmd.error; if (err != MMC_ERR_NONE) @@ -345,6 +382,7 @@ mmc_wait_for_command(struct mmc_softc *s cmd.opcode = opcode; cmd.arg = arg; cmd.flags = flags; + cmd.data = NULL; err = mmc_wait_for_cmd(sc, &cmd, retries); if (err) return (err); @@ -374,6 +412,7 @@ mmc_idle_cards(struct mmc_softc *sc) cmd.opcode = MMC_GO_IDLE_STATE; cmd.arg = 0; cmd.flags = MMC_RSP_NONE | MMC_CMD_BC; + cmd.data = NULL; mmc_wait_for_cmd(sc, &cmd, 0); mmc_ms_delay(1); @@ -392,19 +431,21 @@ mmc_send_app_op_cond(struct mmc_softc *s cmd.opcode = ACMD_SD_SEND_OP_COND; cmd.arg = ocr; cmd.flags = MMC_RSP_R3 | MMC_CMD_BCR; + cmd.data = NULL; for (i = 0; i < 100; i++) { err = mmc_wait_for_app_cmd(sc, 0, &cmd, CMD_RETRIES); if (err != MMC_ERR_NONE) break; - if ((cmd.resp[0] & MMC_OCR_CARD_BUSY) || ocr == 0) + if ((cmd.resp[0] & MMC_OCR_CARD_BUSY) || + (ocr & MMC_OCR_VOLTAGE) == 0) break; err = MMC_ERR_TIMEOUT; mmc_ms_delay(10); } if (rocr && err == MMC_ERR_NONE) *rocr = cmd.resp[0]; - return err; + return (err); } static int @@ -417,19 +458,37 @@ mmc_send_op_cond(struct mmc_softc *sc, u cmd.opcode = MMC_SEND_OP_COND; cmd.arg = ocr; cmd.flags = MMC_RSP_R3 | MMC_CMD_BCR; + cmd.data = NULL; for (i = 0; i < 100; i++) { err = mmc_wait_for_cmd(sc, &cmd, CMD_RETRIES); if (err != MMC_ERR_NONE) break; - if ((cmd.resp[0] & MMC_OCR_CARD_BUSY) || ocr == 0) + if ((cmd.resp[0] & MMC_OCR_CARD_BUSY) || + (ocr & MMC_OCR_VOLTAGE) == 0) break; err = MMC_ERR_TIMEOUT; mmc_ms_delay(10); } if (rocr && err == MMC_ERR_NONE) *rocr = cmd.resp[0]; - return err; + return (err); +} + +static int +mmc_send_if_cond(struct mmc_softc *sc, uint8_t vhs) +{ + struct mmc_command cmd; + int err; + + memset(&cmd, 0, sizeof(cmd)); + cmd.opcode = SD_SEND_IF_COND; + cmd.arg = (vhs << 8) + 0xAA; + cmd.flags = MMC_RSP_R7 | MMC_CMD_BCR; + cmd.data = NULL; + + err = mmc_wait_for_cmd(sc, &cmd, CMD_RETRIES); + return (err); } static void @@ -448,43 +507,269 @@ mmc_power_up(struct mmc_softc *sc) mmc_ms_delay(1); mmcbr_set_clock(dev, mmcbr_get_f_min(sc->dev)); + mmcbr_set_timing(dev, bus_timing_normal); mmcbr_set_power_mode(dev, power_on); mmcbr_update_ios(dev); mmc_ms_delay(2); } -// I wonder if the following is endian safe. +static void +mmc_power_down(struct mmc_softc *sc) +{ + device_t dev = sc->dev; + + mmcbr_set_bus_mode(dev, opendrain); + mmcbr_set_chip_select(dev, cs_dontcare); + mmcbr_set_bus_width(dev, bus_width_1); + mmcbr_set_power_mode(dev, power_off); + mmcbr_set_clock(dev, 0); + mmcbr_set_timing(dev, bus_timing_normal); + mmcbr_update_ios(dev); +} + +static int +mmc_select_card(struct mmc_softc *sc, uint16_t rca) +{ + int flags; + + flags = (rca ? MMC_RSP_R1B : MMC_RSP_NONE) | MMC_CMD_AC; + return (mmc_wait_for_command(sc, MMC_SELECT_CARD, (uint32_t)rca << 16, + flags, NULL, CMD_RETRIES)); +} + +static int +mmc_switch(struct mmc_softc *sc, uint8_t set, uint8_t index, uint8_t value) +{ + struct mmc_command cmd; + int err; + + cmd.opcode = MMC_SWITCH_FUNC; + cmd.arg = (MMC_SWITCH_FUNC_WR << 24) | + (index << 16) | + (value << 8) | + set; + cmd.flags = MMC_RSP_R1B | MMC_CMD_AC; + cmd.data = NULL; + err = mmc_wait_for_cmd(sc, &cmd, 0); + return (err); +} + +static int +mmc_sd_switch(struct mmc_softc *sc, uint8_t mode, uint8_t grp, uint8_t value, uint8_t *res) +{ + int err; + struct mmc_command cmd; + struct mmc_data data; + + memset(&cmd, 0, sizeof(struct mmc_command)); + memset(&data, 0, sizeof(struct mmc_data)); + + memset(res, 0, 64); + cmd.opcode = SD_SWITCH_FUNC; + cmd.flags = MMC_RSP_R1 | MMC_CMD_ADTC; + cmd.arg = mode << 31; + cmd.arg |= 0x00FFFFFF; + cmd.arg &= ~(0xF << (grp * 4)); + cmd.arg |= value << (grp * 4); + cmd.data = &data; + + data.data = res; + data.len = 64; + data.flags = MMC_DATA_READ; + + err = mmc_wait_for_cmd(sc, &cmd, CMD_RETRIES); + return (err); +} + +static int +mmc_set_card_bus_width(struct mmc_softc *sc, uint16_t rca, int width) +{ + int err; + + if (mmcbr_get_mode(sc->dev) == mode_sd) { + struct mmc_command cmd; + + memset(&cmd, 0, sizeof(struct mmc_command)); + cmd.opcode = ACMD_SET_BUS_WIDTH; + cmd.flags = MMC_RSP_R1 | MMC_CMD_AC; + switch (width) { + case bus_width_1: + cmd.arg = SD_BUS_WIDTH_1; + break; + case bus_width_4: + cmd.arg = SD_BUS_WIDTH_4; + break; + default: + return (MMC_ERR_INVALID); + } + err = mmc_wait_for_app_cmd(sc, rca, &cmd, CMD_RETRIES); + } else { + uint8_t value; + + switch (width) { + case bus_width_1: + value = EXT_CSD_BUS_WIDTH_1; + break; + case bus_width_4: + value = EXT_CSD_BUS_WIDTH_4; + break; + case bus_width_8: + value = EXT_CSD_BUS_WIDTH_8; + break; + default: + return (MMC_ERR_INVALID); + } + err = mmc_switch(sc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_BUS_WIDTH, value); + } + return (err); +} + +static int +mmc_set_timing(struct mmc_softc *sc, int timing) +{ + int err; + uint8_t value; + + switch (timing) { + case bus_timing_normal: + value = 0; + break; + case bus_timing_hs: + value = 1; + break; + default: + return (MMC_ERR_INVALID); + } + if (mmcbr_get_mode(sc->dev) == mode_sd) { + u_char switch_res[64]; + + err = mmc_sd_switch(sc, 1, 0, value, switch_res); + } else { + err = mmc_switch(sc, EXT_CSD_CMD_SET_NORMAL, + EXT_CSD_HS_TIMING, value); + } + return (err); +} + +static int +mmc_test_bus_width(struct mmc_softc *sc) +{ + struct mmc_command cmd; + struct mmc_data data; + int err; + uint8_t buf[8]; + uint8_t p8[8] = { 0x55, 0xAA, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; + uint8_t p8ok[8] = { 0xAA, 0x55, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; + uint8_t p4[4] = { 0x5A, 0x00, 0x00, 0x00, }; + uint8_t p4ok[4] = { 0xA5, 0x00, 0x00, 0x00, }; + + if (mmcbr_get_caps(sc->dev) & MMC_CAP_8_BIT_DATA) { + mmcbr_set_bus_width(sc->dev, bus_width_8); + mmcbr_update_ios(sc->dev); + + cmd.opcode = MMC_BUSTEST_W; + cmd.arg = 0; + cmd.flags = MMC_RSP_R1 | MMC_CMD_ADTC; + cmd.data = &data; + + data.data = p8; + data.len = 8; + data.flags = MMC_DATA_WRITE; + mmc_wait_for_cmd(sc, &cmd, 0); + + cmd.opcode = MMC_BUSTEST_R; + cmd.arg = 0; + cmd.flags = MMC_RSP_R1 | MMC_CMD_ADTC; + cmd.data = &data; + + data.data = buf; + data.len = 8; + data.flags = MMC_DATA_READ; + err = mmc_wait_for_cmd(sc, &cmd, 0); + + mmcbr_set_bus_width(sc->dev, bus_width_1); + mmcbr_update_ios(sc->dev); + + if (err == MMC_ERR_NONE && memcmp(buf, p8ok, 8) == 0) + return (bus_width_8); + } + + if (mmcbr_get_caps(sc->dev) & MMC_CAP_4_BIT_DATA) { + mmcbr_set_bus_width(sc->dev, bus_width_4); + mmcbr_update_ios(sc->dev); + + cmd.opcode = MMC_BUSTEST_W; + cmd.arg = 0; + cmd.flags = MMC_RSP_R1 | MMC_CMD_ADTC; + cmd.data = &data; + + data.data = p4; + data.len = 4; + data.flags = MMC_DATA_WRITE; + mmc_wait_for_cmd(sc, &cmd, 0); + + cmd.opcode = MMC_BUSTEST_R; + cmd.arg = 0; + cmd.flags = MMC_RSP_R1 | MMC_CMD_ADTC; + cmd.data = &data; + + data.data = buf; + data.len = 4; + data.flags = MMC_DATA_READ; + err = mmc_wait_for_cmd(sc, &cmd, 0); + + mmcbr_set_bus_width(sc->dev, bus_width_1); + mmcbr_update_ios(sc->dev); + + if (err == MMC_ERR_NONE && memcmp(buf, p4ok, 4) == 0) + return (bus_width_4); + } + return (bus_width_1); +} + static uint32_t -mmc_get_bits(uint32_t *bits, int start, int size) +mmc_get_bits(uint32_t *bits, int bit_len, int start, int size) { - const int i = 3 - (start / 32); + const int i = (bit_len / 32) - (start / 32) - 1; const int shift = start & 31; uint32_t retval = bits[i] >> shift; if (size + shift > 32) retval |= bits[i - 1] << (32 - shift); - return retval & ((1 << size) - 1); + return (retval & ((1 << size) - 1)); } static void -mmc_decode_cid(int is_sd, uint32_t *raw_cid, struct mmc_cid *cid) +mmc_decode_cid_sd(uint32_t *raw_cid, struct mmc_cid *cid) { int i; + /* There's no version info, so we take it on faith */ memset(cid, 0, sizeof(*cid)); - if (is_sd) { - /* There's no version info, so we take it on faith */ - cid->mid = mmc_get_bits(raw_cid, 120, 8); - cid->oid = mmc_get_bits(raw_cid, 104, 16); - for (i = 0; i < 5; i++) - cid->pnm[i] = mmc_get_bits(raw_cid, 96 - i * 8, 8); - cid->prv = mmc_get_bits(raw_cid, 56, 8); - cid->psn = mmc_get_bits(raw_cid, 24, 32); - cid->mdt_year = mmc_get_bits(raw_cid, 12, 8) + 2001; - cid->mdt_month = mmc_get_bits(raw_cid, 8, 4); - } else { - // XXX write me - panic("write mmc cid decoder"); - } + cid->mid = mmc_get_bits(raw_cid, 128, 120, 8); + cid->oid = mmc_get_bits(raw_cid, 128, 104, 16); + for (i = 0; i < 5; i++) + cid->pnm[i] = mmc_get_bits(raw_cid, 128, 96 - i * 8, 8); + cid->prv = mmc_get_bits(raw_cid, 128, 56, 8); + cid->psn = mmc_get_bits(raw_cid, 128, 24, 32); + cid->mdt_year = mmc_get_bits(raw_cid, 128, 12, 8) + 2001; + cid->mdt_month = mmc_get_bits(raw_cid, 128, 8, 4); +} + +static void +mmc_decode_cid_mmc(uint32_t *raw_cid, struct mmc_cid *cid) +{ + int i; + + /* There's no version info, so we take it on faith */ + memset(cid, 0, sizeof(*cid)); + cid->mid = mmc_get_bits(raw_cid, 128, 120, 8); + cid->oid = mmc_get_bits(raw_cid, 128, 104, 8); + for (i = 0; i < 6; i++) + cid->pnm[i] = mmc_get_bits(raw_cid, 128, 96 - i * 8, 8); + cid->prv = mmc_get_bits(raw_cid, 128, 48, 8); + cid->psn = mmc_get_bits(raw_cid, 128, 16, 32); + cid->mdt_month = mmc_get_bits(raw_cid, 128, 12, 4); + cid->mdt_year = mmc_get_bits(raw_cid, 128, 8, 4) + 1997; } static const int exp[8] = { @@ -501,50 +786,142 @@ static const int cur_max[8] = { }; static void -mmc_decode_csd(int is_sd, uint32_t *raw_csd, struct mmc_csd *csd) +mmc_decode_csd_sd(uint32_t *raw_csd, struct mmc_csd *csd) { int v; int m; int e; memset(csd, 0, sizeof(*csd)); - if (is_sd) { - csd->csd_structure = v = mmc_get_bits(raw_csd, 126, 2); - if (v == 0) { - m = mmc_get_bits(raw_csd, 115, 4); - e = mmc_get_bits(raw_csd, 112, 3); - csd->tacc = exp[e] * mant[m] + 9 / 10; - csd->nsac = mmc_get_bits(raw_csd, 104, 8) * 100; - m = mmc_get_bits(raw_csd, 99, 4); - e = mmc_get_bits(raw_csd, 96, 3); - csd->tran_speed = exp[e] * 10000 * mant[m]; - csd->ccc = mmc_get_bits(raw_csd, 84, 12); - csd->read_bl_len = 1 << mmc_get_bits(raw_csd, 80, 4); - csd->read_bl_partial = mmc_get_bits(raw_csd, 79, 1); - csd->write_blk_misalign = mmc_get_bits(raw_csd, 78, 1); - csd->read_blk_misalign = mmc_get_bits(raw_csd, 77, 1); - csd->dsr_imp = mmc_get_bits(raw_csd, 76, 1); - csd->vdd_r_curr_min = cur_min[mmc_get_bits(raw_csd, 59, 3)]; - csd->vdd_r_curr_max = cur_max[mmc_get_bits(raw_csd, 56, 3)]; - csd->vdd_w_curr_min = cur_min[mmc_get_bits(raw_csd, 53, 3)]; - csd->vdd_w_curr_max = cur_max[mmc_get_bits(raw_csd, 50, 3)]; - m = mmc_get_bits(raw_csd, 62, 12); - e = mmc_get_bits(raw_csd, 47, 3); - csd->capacity = ((1 + m) << (e + 2)) * csd->read_bl_len; - csd->erase_blk_en = mmc_get_bits(raw_csd, 46, 1); - csd->sector_size = mmc_get_bits(raw_csd, 39, 7); - csd->wp_grp_size = mmc_get_bits(raw_csd, 32, 7); - csd->wp_grp_enable = mmc_get_bits(raw_csd, 31, 1); - csd->r2w_factor = 1 << mmc_get_bits(raw_csd, 26, 3); - csd->write_bl_len = 1 << mmc_get_bits(raw_csd, 22, 4); - csd->write_bl_partial = mmc_get_bits(raw_csd, 21, 1); - } else if (v == 1) { - panic("Write SDHC CSD parser"); - } else - panic("unknown SD CSD version"); - } else { - panic("Write a MMC CSD parser"); + csd->csd_structure = v = mmc_get_bits(raw_csd, 128, 126, 2); + if (v == 0) { + m = mmc_get_bits(raw_csd, 128, 115, 4); + e = mmc_get_bits(raw_csd, 128, 112, 3); + csd->tacc = exp[e] * mant[m] + 9 / 10; + csd->nsac = mmc_get_bits(raw_csd, 128, 104, 8) * 100; + m = mmc_get_bits(raw_csd, 128, 99, 4); + e = mmc_get_bits(raw_csd, 128, 96, 3); + csd->tran_speed = exp[e] * 10000 * mant[m]; + csd->ccc = mmc_get_bits(raw_csd, 128, 84, 12); + csd->read_bl_len = 1 << mmc_get_bits(raw_csd, 128, 80, 4); + csd->read_bl_partial = mmc_get_bits(raw_csd, 128, 79, 1); + csd->write_blk_misalign = mmc_get_bits(raw_csd, 128, 78, 1); + csd->read_blk_misalign = mmc_get_bits(raw_csd, 128, 77, 1); + csd->dsr_imp = mmc_get_bits(raw_csd, 128, 76, 1); + csd->vdd_r_curr_min = cur_min[mmc_get_bits(raw_csd, 128, 59, 3)]; + csd->vdd_r_curr_max = cur_max[mmc_get_bits(raw_csd, 128, 56, 3)]; + csd->vdd_w_curr_min = cur_min[mmc_get_bits(raw_csd, 128, 53, 3)]; + csd->vdd_w_curr_max = cur_max[mmc_get_bits(raw_csd, 128, 50, 3)]; + m = mmc_get_bits(raw_csd, 128, 62, 12); + e = mmc_get_bits(raw_csd, 128, 47, 3); + csd->capacity = ((1 + m) << (e + 2)) * csd->read_bl_len; + csd->erase_blk_en = mmc_get_bits(raw_csd, 128, 46, 1); + csd->erase_sector = mmc_get_bits(raw_csd, 128, 39, 7) + 1; + csd->wp_grp_size = mmc_get_bits(raw_csd, 128, 32, 7); + csd->wp_grp_enable = mmc_get_bits(raw_csd, 128, 31, 1); + csd->r2w_factor = 1 << mmc_get_bits(raw_csd, 128, 26, 3); + csd->write_bl_len = 1 << mmc_get_bits(raw_csd, 128, 22, 4); + csd->write_bl_partial = mmc_get_bits(raw_csd, 128, 21, 1); + } else if (v == 1) { + m = mmc_get_bits(raw_csd, 128, 115, 4); + e = mmc_get_bits(raw_csd, 128, 112, 3); + csd->tacc = exp[e] * mant[m] + 9 / 10; + csd->nsac = mmc_get_bits(raw_csd, 128, 104, 8) * 100; + m = mmc_get_bits(raw_csd, 128, 99, 4); + e = mmc_get_bits(raw_csd, 128, 96, 3); + csd->tran_speed = exp[e] * 10000 * mant[m]; + csd->ccc = mmc_get_bits(raw_csd, 128, 84, 12); + csd->read_bl_len = 1 << mmc_get_bits(raw_csd, 128, 80, 4); + csd->read_bl_partial = mmc_get_bits(raw_csd, 128, 79, 1); + csd->write_blk_misalign = mmc_get_bits(raw_csd, 128, 78, 1); + csd->read_blk_misalign = mmc_get_bits(raw_csd, 128, 77, 1); + csd->dsr_imp = mmc_get_bits(raw_csd, 128, 76, 1); + csd->capacity = ((uint64_t)mmc_get_bits(raw_csd, 128, 48, 22) + 1) * + 512 * 1024; + csd->erase_blk_en = mmc_get_bits(raw_csd, 128, 46, 1); + csd->erase_sector = mmc_get_bits(raw_csd, 128, 39, 7) + 1; + csd->wp_grp_size = mmc_get_bits(raw_csd, 128, 32, 7); + csd->wp_grp_enable = mmc_get_bits(raw_csd, 128, 31, 1); + csd->r2w_factor = 1 << mmc_get_bits(raw_csd, 128, 26, 3); + csd->write_bl_len = 1 << mmc_get_bits(raw_csd, 128, 22, 4); + csd->write_bl_partial = mmc_get_bits(raw_csd, 128, 21, 1); + } else + panic("unknown SD CSD version"); +} + +static void +mmc_decode_csd_mmc(uint32_t *raw_csd, struct mmc_csd *csd) +{ + int m; + int e; + + memset(csd, 0, sizeof(*csd)); + csd->csd_structure = mmc_get_bits(raw_csd, 128, 126, 2); + csd->spec_vers = mmc_get_bits(raw_csd, 128, 122, 4); + m = mmc_get_bits(raw_csd, 128, 115, 4); + e = mmc_get_bits(raw_csd, 128, 112, 3); + csd->tacc = exp[e] * mant[m] + 9 / 10; + csd->nsac = mmc_get_bits(raw_csd, 128, 104, 8) * 100; + m = mmc_get_bits(raw_csd, 128, 99, 4); + e = mmc_get_bits(raw_csd, 128, 96, 3); + csd->tran_speed = exp[e] * 10000 * mant[m]; + csd->ccc = mmc_get_bits(raw_csd, 128, 84, 12); + csd->read_bl_len = 1 << mmc_get_bits(raw_csd, 128, 80, 4); + csd->read_bl_partial = mmc_get_bits(raw_csd, 128, 79, 1); + csd->write_blk_misalign = mmc_get_bits(raw_csd, 128, 78, 1); + csd->read_blk_misalign = mmc_get_bits(raw_csd, 128, 77, 1); + csd->dsr_imp = mmc_get_bits(raw_csd, 128, 76, 1); + csd->vdd_r_curr_min = cur_min[mmc_get_bits(raw_csd, 128, 59, 3)]; + csd->vdd_r_curr_max = cur_max[mmc_get_bits(raw_csd, 128, 56, 3)]; + csd->vdd_w_curr_min = cur_min[mmc_get_bits(raw_csd, 128, 53, 3)]; + csd->vdd_w_curr_max = cur_max[mmc_get_bits(raw_csd, 128, 50, 3)]; + m = mmc_get_bits(raw_csd, 128, 62, 12); + e = mmc_get_bits(raw_csd, 128, 47, 3); + csd->capacity = ((1 + m) << (e + 2)) * csd->read_bl_len; + csd->erase_blk_en = 0; + csd->erase_sector = (mmc_get_bits(raw_csd, 128, 42, 5) + 1) * + (mmc_get_bits(raw_csd, 128, 37, 5) + 1); + csd->wp_grp_size = mmc_get_bits(raw_csd, 128, 32, 5); + csd->wp_grp_enable = mmc_get_bits(raw_csd, 128, 31, 1); + csd->r2w_factor = 1 << mmc_get_bits(raw_csd, 128, 26, 3); + csd->write_bl_len = 1 << mmc_get_bits(raw_csd, 128, 22, 4); + csd->write_bl_partial = mmc_get_bits(raw_csd, 128, 21, 1); +} + +static void +mmc_app_decode_scr(uint32_t *raw_scr, struct mmc_scr *scr) +{ + unsigned int scr_struct; + + memset(scr, 0, sizeof(*scr)); + + scr_struct = mmc_get_bits(raw_scr, 64, 60, 4); + if (scr_struct != 0) { + printf("Unrecognised SCR structure version %d\n", + scr_struct); + return; } + scr->sda_vsn = mmc_get_bits(raw_scr, 64, 56, 4); + scr->bus_widths = mmc_get_bits(raw_scr, 64, 48, 4); +} + +static void +mmc_app_decode_sd_status(uint32_t *raw_sd_status, + struct mmc_sd_status *sd_status) +{ + + memset(sd_status, 0, sizeof(*sd_status)); + + sd_status->bus_width = mmc_get_bits(raw_sd_status, 512, 510, 2); + sd_status->secured_mode = mmc_get_bits(raw_sd_status, 512, 509, 1); + sd_status->card_type = mmc_get_bits(raw_sd_status, 512, 480, 16); + sd_status->prot_area = mmc_get_bits(raw_sd_status, 512, 448, 12); + sd_status->speed_class = mmc_get_bits(raw_sd_status, 512, 440, 8); + sd_status->perf_move = mmc_get_bits(raw_sd_status, 512, 432, 8); + sd_status->au_size = mmc_get_bits(raw_sd_status, 512, 428, 4); + sd_status->erase_size = mmc_get_bits(raw_sd_status, 512, 408, 16); + sd_status->erase_timeout = mmc_get_bits(raw_sd_status, 512, 402, 6); + sd_status->erase_offset = mmc_get_bits(raw_sd_status, 512, 400, 2); } static int @@ -556,6 +933,7 @@ mmc_all_send_cid(struct mmc_softc *sc, u cmd.opcode = MMC_ALL_SEND_CID; cmd.arg = 0; cmd.flags = MMC_RSP_R2 | MMC_CMD_BCR; + cmd.data = NULL; err = mmc_wait_for_cmd(sc, &cmd, 0); memcpy(rawcid, cmd.resp, 4 * sizeof(uint32_t)); return (err); @@ -570,12 +948,103 @@ mmc_send_csd(struct mmc_softc *sc, uint1 cmd.opcode = MMC_SEND_CSD; cmd.arg = rca << 16; cmd.flags = MMC_RSP_R2 | MMC_CMD_BCR; + cmd.data = NULL; err = mmc_wait_for_cmd(sc, &cmd, 0); memcpy(rawcid, cmd.resp, 4 * sizeof(uint32_t)); return (err); } static int +mmc_app_send_scr(struct mmc_softc *sc, uint16_t rca, uint32_t *rawscr) +{ + int err; + struct mmc_command cmd; + struct mmc_data data; + + memset(&cmd, 0, sizeof(struct mmc_command)); + memset(&data, 0, sizeof(struct mmc_data)); + + memset(rawscr, 0, 8); + cmd.opcode = ACMD_SEND_SCR; + cmd.flags = MMC_RSP_R1 | MMC_CMD_ADTC; + cmd.arg = 0; + cmd.data = &data; + + data.data = rawscr; + data.len = 8; + data.flags = MMC_DATA_READ; + + err = mmc_wait_for_app_cmd(sc, rca, &cmd, CMD_RETRIES); + rawscr[0] = be32toh(rawscr[0]); + rawscr[1] = be32toh(rawscr[1]); + return (err); +} + +static int +mmc_send_ext_csd(struct mmc_softc *sc, uint8_t *rawextcsd) +{ + int err; + struct mmc_command cmd; + struct mmc_data data; + + memset(&cmd, 0, sizeof(struct mmc_command)); + memset(&data, 0, sizeof(struct mmc_data)); + + memset(rawextcsd, 0, 512); + cmd.opcode = MMC_SEND_EXT_CSD; + cmd.flags = MMC_RSP_R1 | MMC_CMD_ADTC; + cmd.arg = 0; + cmd.data = &data; + + data.data = rawextcsd; + data.len = 512; + data.flags = MMC_DATA_READ; + + err = mmc_wait_for_cmd(sc, &cmd, CMD_RETRIES); + return (err); +} + +static int +mmc_app_sd_status(struct mmc_softc *sc, uint16_t rca, uint32_t *rawsdstatus) +{ + int err, i; + struct mmc_command cmd; + struct mmc_data data; + + memset(&cmd, 0, sizeof(struct mmc_command)); + memset(&data, 0, sizeof(struct mmc_data)); + + memset(rawsdstatus, 0, 64); + cmd.opcode = ACMD_SD_STATUS; + cmd.flags = MMC_RSP_R1 | MMC_CMD_ADTC; + cmd.arg = 0; + cmd.data = &data; + + data.data = rawsdstatus; + data.len = 64; + data.flags = MMC_DATA_READ; + + err = mmc_wait_for_app_cmd(sc, rca, &cmd, CMD_RETRIES); + for (i = 0; i < 16; i++) + rawsdstatus[i] = be32toh(rawsdstatus[i]); + return (err); +} + +static int +mmc_set_relative_addr(struct mmc_softc *sc, uint16_t resp) +{ + struct mmc_command cmd; + int err; + + cmd.opcode = MMC_SET_RELATIVE_ADDR; + cmd.arg = resp << 16; + cmd.flags = MMC_RSP_R6 | MMC_CMD_BCR; + cmd.data = NULL; + err = mmc_wait_for_cmd(sc, &cmd, 0); + return (err); +} + +static int mmc_send_relative_addr(struct mmc_softc *sc, uint32_t *resp) { struct mmc_command cmd; @@ -584,6 +1053,7 @@ mmc_send_relative_addr(struct mmc_softc cmd.opcode = SD_SEND_RELATIVE_ADDR; cmd.arg = 0; cmd.flags = MMC_RSP_R6 | MMC_CMD_BCR; + cmd.data = NULL; err = mmc_wait_for_cmd(sc, &cmd, 0); *resp = cmd.resp[0]; return (err); @@ -592,39 +1062,182 @@ mmc_send_relative_addr(struct mmc_softc static void mmc_discover_cards(struct mmc_softc *sc) { - struct mmc_ivars *ivar; - int err; - uint32_t resp; + struct mmc_ivars *ivar = NULL; + device_t *devlist; + int err, i, devcount, newcard; *** DIFF OUTPUT TRUNCATED AT 1000 LINES ***
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