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Bluetooth: btmrvl: support Marvell Bluetooth device SD8787
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The SD8787 firmware image is shared with mwifiex driver.
Whoever gets loaded first will be responsible for firmware
downloading.

Signed-off-by: Kevin Gan <ganhy@marvell.com>
Signed-off-by: Tristan Xu <xurf@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
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Kevin Gan authored and Gustavo F. Padovan committed Apr 13, 2011
1 parent b86ed36 commit 9f72c1d
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Showing 3 changed files with 132 additions and 64 deletions.
4 changes: 2 additions & 2 deletions drivers/bluetooth/Kconfig
View file
Original file line number Diff line number Diff line change
Expand Up @@ -188,7 +188,7 @@ config BT_MRVL
The core driver to support Marvell Bluetooth devices.

This driver is required if you want to support
Marvell Bluetooth devices, such as 8688.
Marvell Bluetooth devices, such as 8688/8787.

Say Y here to compile Marvell Bluetooth driver
into the kernel or say M to compile it as module.
Expand All @@ -201,7 +201,7 @@ config BT_MRVL_SDIO
The driver for Marvell Bluetooth chipsets with SDIO interface.

This driver is required if you want to use Marvell Bluetooth
devices with SDIO interface. Currently only SD8688 chipset is
devices with SDIO interface. Currently SD8688/SD8787 chipsets are
supported.

Say Y here to compile support for Marvell BT-over-SDIO driver
Expand Down
124 changes: 94 additions & 30 deletions drivers/bluetooth/btmrvl_sdio.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -49,15 +49,59 @@
static u8 user_rmmod;
static u8 sdio_ireg;

static const struct btmrvl_sdio_card_reg btmrvl_reg_8688 = {
.cfg = 0x03,
.host_int_mask = 0x04,
.host_intstatus = 0x05,
.card_status = 0x20,
.sq_read_base_addr_a0 = 0x10,
.sq_read_base_addr_a1 = 0x11,
.card_fw_status0 = 0x40,
.card_fw_status1 = 0x41,
.card_rx_len = 0x42,
.card_rx_unit = 0x43,
.io_port_0 = 0x00,
.io_port_1 = 0x01,
.io_port_2 = 0x02,
};
static const struct btmrvl_sdio_card_reg btmrvl_reg_8787 = {
.cfg = 0x00,
.host_int_mask = 0x02,
.host_intstatus = 0x03,
.card_status = 0x30,
.sq_read_base_addr_a0 = 0x40,
.sq_read_base_addr_a1 = 0x41,
.card_revision = 0x5c,
.card_fw_status0 = 0x60,
.card_fw_status1 = 0x61,
.card_rx_len = 0x62,
.card_rx_unit = 0x63,
.io_port_0 = 0x78,
.io_port_1 = 0x79,
.io_port_2 = 0x7a,
};

static const struct btmrvl_sdio_device btmrvl_sdio_sd6888 = {
.helper = "sd8688_helper.bin",
.firmware = "sd8688.bin",
.reg = &btmrvl_reg_8688,
.sd_blksz_fw_dl = 64,
};

static const struct btmrvl_sdio_device btmrvl_sdio_sd8787 = {
.helper = NULL,
.firmware = "mrvl/sd8787_uapsta.bin",
.reg = &btmrvl_reg_8787,
.sd_blksz_fw_dl = 256,
};

static const struct sdio_device_id btmrvl_sdio_ids[] = {
/* Marvell SD8688 Bluetooth device */
{ SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x9105),
.driver_data = (unsigned long) &btmrvl_sdio_sd6888 },
/* Marvell SD8787 Bluetooth device */
{ SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x911A),
.driver_data = (unsigned long) &btmrvl_sdio_sd8787 },

{ } /* Terminating entry */
};
Expand All @@ -69,7 +113,7 @@ static int btmrvl_sdio_get_rx_unit(struct btmrvl_sdio_card *card)
u8 reg;
int ret;

reg = sdio_readb(card->func, CARD_RX_UNIT_REG, &ret);
reg = sdio_readb(card->func, card->reg->card_rx_unit, &ret);
if (!ret)
card->rx_unit = reg;

Expand All @@ -83,11 +127,11 @@ static int btmrvl_sdio_read_fw_status(struct btmrvl_sdio_card *card, u16 *dat)

*dat = 0;

fws0 = sdio_readb(card->func, CARD_FW_STATUS0_REG, &ret);
fws0 = sdio_readb(card->func, card->reg->card_fw_status0, &ret);
if (ret)
return -EIO;

fws1 = sdio_readb(card->func, CARD_FW_STATUS1_REG, &ret);
fws1 = sdio_readb(card->func, card->reg->card_fw_status1, &ret);
if (ret)
return -EIO;

Expand All @@ -101,7 +145,7 @@ static int btmrvl_sdio_read_rx_len(struct btmrvl_sdio_card *card, u16 *dat)
u8 reg;
int ret;

reg = sdio_readb(card->func, CARD_RX_LEN_REG, &ret);
reg = sdio_readb(card->func, card->reg->card_rx_len, &ret);
if (!ret)
*dat = (u16) reg << card->rx_unit;

Expand All @@ -113,7 +157,7 @@ static int btmrvl_sdio_enable_host_int_mask(struct btmrvl_sdio_card *card,
{
int ret;

sdio_writeb(card->func, mask, HOST_INT_MASK_REG, &ret);
sdio_writeb(card->func, mask, card->reg->host_int_mask, &ret);
if (ret) {
BT_ERR("Unable to enable the host interrupt!");
ret = -EIO;
Expand All @@ -128,13 +172,13 @@ static int btmrvl_sdio_disable_host_int_mask(struct btmrvl_sdio_card *card,
u8 host_int_mask;
int ret;

host_int_mask = sdio_readb(card->func, HOST_INT_MASK_REG, &ret);
host_int_mask = sdio_readb(card->func, card->reg->host_int_mask, &ret);
if (ret)
return -EIO;

host_int_mask &= ~mask;

sdio_writeb(card->func, host_int_mask, HOST_INT_MASK_REG, &ret);
sdio_writeb(card->func, host_int_mask, card->reg->host_int_mask, &ret);
if (ret < 0) {
BT_ERR("Unable to disable the host interrupt!");
return -EIO;
Expand All @@ -150,7 +194,7 @@ static int btmrvl_sdio_poll_card_status(struct btmrvl_sdio_card *card, u8 bits)
int ret;

for (tries = 0; tries < MAX_POLL_TRIES * 1000; tries++) {
status = sdio_readb(card->func, CARD_STATUS_REG, &ret);
status = sdio_readb(card->func, card->reg->card_status, &ret);
if (ret)
goto failed;
if ((status & bits) == bits)
Expand Down Expand Up @@ -299,7 +343,7 @@ static int btmrvl_sdio_download_fw_w_helper(struct btmrvl_sdio_card *card)
u8 base0, base1;
void *tmpfwbuf = NULL;
u8 *fwbuf;
u16 len;
u16 len, blksz_dl = card->sd_blksz_fw_dl;
int txlen = 0, tx_blocks = 0, count = 0;

ret = request_firmware(&fw_firmware, card->firmware,
Expand Down Expand Up @@ -345,7 +389,7 @@ static int btmrvl_sdio_download_fw_w_helper(struct btmrvl_sdio_card *card)

for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
base0 = sdio_readb(card->func,
SQ_READ_BASE_ADDRESS_A0_REG, &ret);
card->reg->sq_read_base_addr_a0, &ret);
if (ret) {
BT_ERR("BASE0 register read failed:"
" base0 = 0x%04X(%d)."
Expand All @@ -355,7 +399,7 @@ static int btmrvl_sdio_download_fw_w_helper(struct btmrvl_sdio_card *card)
goto done;
}
base1 = sdio_readb(card->func,
SQ_READ_BASE_ADDRESS_A1_REG, &ret);
card->reg->sq_read_base_addr_a1, &ret);
if (ret) {
BT_ERR("BASE1 register read failed:"
" base1 = 0x%04X(%d)."
Expand Down Expand Up @@ -403,20 +447,19 @@ static int btmrvl_sdio_download_fw_w_helper(struct btmrvl_sdio_card *card)
if (firmwarelen - offset < txlen)
txlen = firmwarelen - offset;

tx_blocks =
(txlen + SDIO_BLOCK_SIZE - 1) / SDIO_BLOCK_SIZE;
tx_blocks = (txlen + blksz_dl - 1) / blksz_dl;

memcpy(fwbuf, &firmware[offset], txlen);
}

ret = sdio_writesb(card->func, card->ioport, fwbuf,
tx_blocks * SDIO_BLOCK_SIZE);
tx_blocks * blksz_dl);

if (ret < 0) {
BT_ERR("FW download, writesb(%d) failed @%d",
count, offset);
sdio_writeb(card->func, HOST_CMD53_FIN, CONFIG_REG,
&ret);
sdio_writeb(card->func, HOST_CMD53_FIN,
card->reg->cfg, &ret);
if (ret)
BT_ERR("writeb failed (CFG)");
}
Expand Down Expand Up @@ -597,7 +640,7 @@ static void btmrvl_sdio_interrupt(struct sdio_func *func)

priv = card->priv;

ireg = sdio_readb(card->func, HOST_INTSTATUS_REG, &ret);
ireg = sdio_readb(card->func, card->reg->host_intstatus, &ret);
if (ret) {
BT_ERR("sdio_readb: read int status register failed");
return;
Expand All @@ -613,7 +656,7 @@ static void btmrvl_sdio_interrupt(struct sdio_func *func)

sdio_writeb(card->func, ~(ireg) & (DN_LD_HOST_INT_STATUS |
UP_LD_HOST_INT_STATUS),
HOST_INTSTATUS_REG, &ret);
card->reg->host_intstatus, &ret);
if (ret) {
BT_ERR("sdio_writeb: clear int status register failed");
return;
Expand Down Expand Up @@ -664,23 +707,23 @@ static int btmrvl_sdio_register_dev(struct btmrvl_sdio_card *card)
goto release_irq;
}

reg = sdio_readb(func, IO_PORT_0_REG, &ret);
reg = sdio_readb(func, card->reg->io_port_0, &ret);
if (ret < 0) {
ret = -EIO;
goto release_irq;
}

card->ioport = reg;

reg = sdio_readb(func, IO_PORT_1_REG, &ret);
reg = sdio_readb(func, card->reg->io_port_1, &ret);
if (ret < 0) {
ret = -EIO;
goto release_irq;
}

card->ioport |= (reg << 8);

reg = sdio_readb(func, IO_PORT_2_REG, &ret);
reg = sdio_readb(func, card->reg->io_port_2, &ret);
if (ret < 0) {
ret = -EIO;
goto release_irq;
Expand Down Expand Up @@ -815,6 +858,8 @@ static int btmrvl_sdio_host_to_card(struct btmrvl_private *priv,
static int btmrvl_sdio_download_fw(struct btmrvl_sdio_card *card)
{
int ret = 0;
u8 fws0;
int pollnum = MAX_POLL_TRIES;

if (!card || !card->func) {
BT_ERR("card or function is NULL!");
Expand All @@ -827,20 +872,36 @@ static int btmrvl_sdio_download_fw(struct btmrvl_sdio_card *card)
goto done;
}

ret = btmrvl_sdio_download_helper(card);
/* Check if other function driver is downloading the firmware */
fws0 = sdio_readb(card->func, card->reg->card_fw_status0, &ret);
if (ret) {
BT_ERR("Failed to download helper!");
BT_ERR("Failed to read FW downloading status!");
ret = -EIO;
goto done;
}
if (fws0) {
BT_DBG("BT not the winner (%#x). Skip FW downloading", fws0);

/* Give other function more time to download the firmware */
pollnum *= 10;
} else {
if (card->helper) {
ret = btmrvl_sdio_download_helper(card);
if (ret) {
BT_ERR("Failed to download helper!");
ret = -EIO;
goto done;
}
}

if (btmrvl_sdio_download_fw_w_helper(card)) {
BT_ERR("Failed to download firmware!");
ret = -EIO;
goto done;
if (btmrvl_sdio_download_fw_w_helper(card)) {
BT_ERR("Failed to download firmware!");
ret = -EIO;
goto done;
}
}

if (btmrvl_sdio_verify_fw_download(card, MAX_POLL_TRIES)) {
if (btmrvl_sdio_verify_fw_download(card, pollnum)) {
BT_ERR("FW failed to be active in time!");
ret = -ETIMEDOUT;
goto done;
Expand All @@ -864,7 +925,7 @@ static int btmrvl_sdio_wakeup_fw(struct btmrvl_private *priv)

sdio_claim_host(card->func);

sdio_writeb(card->func, HOST_POWER_UP, CONFIG_REG, &ret);
sdio_writeb(card->func, HOST_POWER_UP, card->reg->cfg, &ret);

sdio_release_host(card->func);

Expand Down Expand Up @@ -893,8 +954,10 @@ static int btmrvl_sdio_probe(struct sdio_func *func,

if (id->driver_data) {
struct btmrvl_sdio_device *data = (void *) id->driver_data;
card->helper = data->helper;
card->helper = data->helper;
card->firmware = data->firmware;
card->reg = data->reg;
card->sd_blksz_fw_dl = data->sd_blksz_fw_dl;
}

if (btmrvl_sdio_register_dev(card) < 0) {
Expand Down Expand Up @@ -1011,3 +1074,4 @@ MODULE_VERSION(VERSION);
MODULE_LICENSE("GPL v2");
MODULE_FIRMWARE("sd8688_helper.bin");
MODULE_FIRMWARE("sd8688.bin");
MODULE_FIRMWARE("mrvl/sd8787_uapsta.bin");
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