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path: root/drivers/bluetooth/btmrvl_sdio.c
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Diffstat (limited to 'drivers/bluetooth/btmrvl_sdio.c')
-rw-r--r--drivers/bluetooth/btmrvl_sdio.c135
1 files changed, 12 insertions, 123 deletions
diff --git a/drivers/bluetooth/btmrvl_sdio.c b/drivers/bluetooth/btmrvl_sdio.c
index 7638f62e8a06..224af53e0fae 100644
--- a/drivers/bluetooth/btmrvl_sdio.c
+++ b/drivers/bluetooth/btmrvl_sdio.c
@@ -67,23 +67,17 @@ static int btmrvl_sdio_get_rx_unit(struct btmrvl_sdio_card *card)
u8 reg;
int ret;
- BT_DBG("Enter");
-
reg = sdio_readb(card->func, CARD_RX_UNIT_REG, &ret);
if (!ret)
card->rx_unit = reg;
- BT_DBG("Leave");
-
return ret;
}
static int btmrvl_sdio_read_fw_status(struct btmrvl_sdio_card *card, u16 *dat)
{
- int ret;
u8 fws0, fws1;
-
- BT_DBG("Enter");
+ int ret;
*dat = 0;
@@ -92,31 +86,23 @@ static int btmrvl_sdio_read_fw_status(struct btmrvl_sdio_card *card, u16 *dat)
if (!ret)
fws1 = sdio_readb(card->func, CARD_FW_STATUS1_REG, &ret);
- if (ret) {
- BT_DBG("Leave");
+ if (ret)
return -EIO;
- }
*dat = (((u16) fws1) << 8) | fws0;
- BT_DBG("Leave");
-
return 0;
}
static int btmrvl_sdio_read_rx_len(struct btmrvl_sdio_card *card, u16 *dat)
{
- int ret;
u8 reg;
-
- BT_DBG("Enter");
+ int ret;
reg = sdio_readb(card->func, CARD_RX_LEN_REG, &ret);
if (!ret)
*dat = (u16) reg << card->rx_unit;
- BT_DBG("Leave");
-
return ret;
}
@@ -125,64 +111,48 @@ static int btmrvl_sdio_enable_host_int_mask(struct btmrvl_sdio_card *card,
{
int ret;
- BT_DBG("Enter");
-
sdio_writeb(card->func, mask, HOST_INT_MASK_REG, &ret);
if (ret) {
BT_ERR("Unable to enable the host interrupt!");
ret = -EIO;
}
- BT_DBG("Leave");
-
return ret;
}
static int btmrvl_sdio_disable_host_int_mask(struct btmrvl_sdio_card *card,
u8 mask)
{
- int ret;
u8 host_int_mask;
-
- BT_DBG("Enter");
+ int ret;
host_int_mask = sdio_readb(card->func, HOST_INT_MASK_REG, &ret);
- if (ret) {
- ret = -EIO;
- goto done;
- }
+ if (ret)
+ return -EIO;
host_int_mask &= ~mask;
sdio_writeb(card->func, host_int_mask, HOST_INT_MASK_REG, &ret);
if (ret < 0) {
BT_ERR("Unable to disable the host interrupt!");
- ret = -EIO;
- goto done;
+ return -EIO;
}
- ret = 0;
-
-done:
- BT_DBG("Leave");
-
- return ret;
+ return 0;
}
static int btmrvl_sdio_poll_card_status(struct btmrvl_sdio_card *card, u8 bits)
{
unsigned int tries;
- int ret;
u8 status;
-
- BT_DBG("Enter");
+ int ret;
for (tries = 0; tries < MAX_POLL_TRIES * 1000; tries++) {
status = sdio_readb(card->func, CARD_STATUS_REG, &ret);
if (ret)
goto failed;
if ((status & bits) == bits)
- goto done;
+ return ret;
udelay(1);
}
@@ -192,9 +162,6 @@ static int btmrvl_sdio_poll_card_status(struct btmrvl_sdio_card *card, u8 bits)
failed:
BT_ERR("FAILED! ret=%d", ret);
-done:
- BT_DBG("Leave");
-
return ret;
}
@@ -205,8 +172,6 @@ static int btmrvl_sdio_verify_fw_download(struct btmrvl_sdio_card *card,
u16 firmwarestat;
unsigned int tries;
- BT_DBG("Enter");
-
/* Wait for firmware to become ready */
for (tries = 0; tries < pollnum; tries++) {
if (btmrvl_sdio_read_fw_status(card, &firmwarestat) < 0)
@@ -220,8 +185,6 @@ static int btmrvl_sdio_verify_fw_download(struct btmrvl_sdio_card *card,
}
}
- BT_DBG("Leave");
-
return ret;
}
@@ -235,8 +198,6 @@ static int btmrvl_sdio_download_helper(struct btmrvl_sdio_card *card)
u8 *helperbuf;
u32 tx_len;
- BT_DBG("Enter");
-
ret = request_firmware(&fw_helper, card->helper,
&card->func->dev);
if ((ret < 0) || !fw_helper) {
@@ -326,8 +287,6 @@ done:
if (fw_helper)
release_firmware(fw_helper);
- BT_DBG("Leave");
-
return ret;
}
@@ -343,8 +302,6 @@ static int btmrvl_sdio_download_fw_w_helper(struct btmrvl_sdio_card *card)
u16 len;
int txlen = 0, tx_blocks = 0, count = 0;
- BT_DBG("Enter");
-
ret = request_firmware(&fw_firmware, card->firmware,
&card->func->dev);
if ((ret < 0) || !fw_firmware) {
@@ -479,8 +436,6 @@ done:
if (fw_firmware)
release_firmware(fw_firmware);
- BT_DBG("Leave");
-
return ret;
}
@@ -494,8 +449,6 @@ static int btmrvl_sdio_card_to_host(struct btmrvl_private *priv)
struct hci_dev *hdev = priv->btmrvl_dev.hcidev;
struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
- BT_DBG("Enter");
-
if (!card || !card->func) {
BT_ERR("card or function is NULL!");
ret = -EINVAL;
@@ -596,8 +549,6 @@ exit:
kfree_skb(skb);
}
- BT_DBG("Leave");
-
return ret;
}
@@ -607,8 +558,6 @@ static int btmrvl_sdio_get_int_status(struct btmrvl_private *priv, u8 * ireg)
u8 sdio_ireg = 0;
struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
- BT_DBG("Enter");
-
*ireg = 0;
sdio_ireg = sdio_readb(card->func, HOST_INTSTATUS_REG, &ret);
@@ -653,8 +602,6 @@ static int btmrvl_sdio_get_int_status(struct btmrvl_private *priv, u8 * ireg)
ret = 0;
done:
- BT_DBG("Leave");
-
return ret;
}
@@ -665,8 +612,6 @@ static void btmrvl_sdio_interrupt(struct sdio_func *func)
struct btmrvl_sdio_card *card;
u8 ireg = 0;
- BT_DBG("Enter");
-
card = sdio_get_drvdata(func);
if (card && card->priv) {
priv = card->priv;
@@ -679,8 +624,6 @@ static void btmrvl_sdio_interrupt(struct sdio_func *func)
btmrvl_interrupt(priv);
}
-
- BT_DBG("Leave");
}
static int btmrvl_sdio_register_dev(struct btmrvl_sdio_card *card)
@@ -689,8 +632,6 @@ static int btmrvl_sdio_register_dev(struct btmrvl_sdio_card *card)
u8 reg;
int ret = 0;
- BT_DBG("Enter");
-
if (!card || !card->func) {
BT_ERR("Error: card or function is NULL!");
ret = -EINVAL;
@@ -752,7 +693,6 @@ static int btmrvl_sdio_register_dev(struct btmrvl_sdio_card *card)
sdio_release_host(func);
- BT_DBG("Leave");
return 0;
release_irq:
@@ -765,14 +705,11 @@ release_host:
sdio_release_host(func);
failed:
- BT_DBG("Leave");
return ret;
}
static int btmrvl_sdio_unregister_dev(struct btmrvl_sdio_card *card)
{
- BT_DBG("Enter");
-
if (card && card->func) {
sdio_claim_host(card->func);
sdio_release_irq(card->func);
@@ -781,8 +718,6 @@ static int btmrvl_sdio_unregister_dev(struct btmrvl_sdio_card *card)
sdio_set_drvdata(card->func, NULL);
}
- BT_DBG("Leave");
-
return 0;
}
@@ -790,12 +725,8 @@ static int btmrvl_sdio_enable_host_int(struct btmrvl_sdio_card *card)
{
int ret;
- BT_DBG("Enter");
-
- if (!card || !card->func) {
- BT_DBG("Leave");
+ if (!card || !card->func)
return -EINVAL;
- }
sdio_claim_host(card->func);
@@ -805,8 +736,6 @@ static int btmrvl_sdio_enable_host_int(struct btmrvl_sdio_card *card)
sdio_release_host(card->func);
- BT_DBG("Leave");
-
return ret;
}
@@ -814,12 +743,8 @@ static int btmrvl_sdio_disable_host_int(struct btmrvl_sdio_card *card)
{
int ret;
- BT_DBG("Enter");
-
- if (!card || !card->func) {
- BT_DBG("Leave");
+ if (!card || !card->func)
return -EINVAL;
- }
sdio_claim_host(card->func);
@@ -827,8 +752,6 @@ static int btmrvl_sdio_disable_host_int(struct btmrvl_sdio_card *card)
sdio_release_host(card->func);
- BT_DBG("Leave");
-
return ret;
}
@@ -844,11 +767,8 @@ static int btmrvl_sdio_host_to_card(struct btmrvl_private *priv,
void *tmpbuf = NULL;
int tmpbufsz;
- BT_DBG("Enter");
-
if (!card || !card->func) {
BT_ERR("card or function is NULL!");
- BT_DBG("Leave");
return -EINVAL;
}
@@ -886,8 +806,6 @@ static int btmrvl_sdio_host_to_card(struct btmrvl_private *priv,
exit:
sdio_release_host(card->func);
- BT_DBG("Leave");
-
return ret;
}
@@ -895,11 +813,8 @@ static int btmrvl_sdio_download_fw(struct btmrvl_sdio_card *card)
{
int ret = 0;
- BT_DBG("Enter");
-
if (!card || !card->func) {
BT_ERR("card or function is NULL!");
- BT_DBG("Leave");
return -EINVAL;
}
sdio_claim_host(card->func);
@@ -931,8 +846,6 @@ static int btmrvl_sdio_download_fw(struct btmrvl_sdio_card *card)
done:
sdio_release_host(card->func);
- BT_DBG("Leave");
-
return ret;
}
@@ -941,11 +854,8 @@ static int btmrvl_sdio_wakeup_fw(struct btmrvl_private *priv)
struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
int ret = 0;
- BT_DBG("Enter");
-
if (!card || !card->func) {
BT_ERR("card or function is NULL!");
- BT_DBG("Leave");
return -EINVAL;
}
@@ -957,8 +867,6 @@ static int btmrvl_sdio_wakeup_fw(struct btmrvl_private *priv)
BT_DBG("wake up firmware");
- BT_DBG("Leave");
-
return ret;
}
@@ -969,8 +877,6 @@ static int btmrvl_sdio_probe(struct sdio_func *func,
struct btmrvl_private *priv = NULL;
struct btmrvl_sdio_card *card = NULL;
- BT_DBG("Enter");
-
BT_INFO("vendor=0x%x, device=0x%x, class=%d, fn=%d",
id->vendor, id->device, id->class, func->num);
@@ -1022,8 +928,6 @@ static int btmrvl_sdio_probe(struct sdio_func *func,
btmrvl_send_module_cfg_cmd(priv, MODULE_BRINGUP_REQ);
- BT_DBG("Leave");
-
return 0;
disable_host_int:
@@ -1033,8 +937,6 @@ unreg_dev:
free_card:
kfree(card);
done:
- BT_DBG("Leave");
-
return ret;
}
@@ -1042,8 +944,6 @@ static void btmrvl_sdio_remove(struct sdio_func *func)
{
struct btmrvl_sdio_card *card;
- BT_DBG("Enter");
-
if (func) {
card = sdio_get_drvdata(func);
if (card) {
@@ -1061,8 +961,6 @@ static void btmrvl_sdio_remove(struct sdio_func *func)
kfree(card);
}
}
-
- BT_DBG("Leave");
}
static struct sdio_driver bt_mrvl_sdio = {
@@ -1074,32 +972,23 @@ static struct sdio_driver bt_mrvl_sdio = {
static int btmrvl_sdio_init_module(void)
{
- BT_DBG("Enter");
-
if (sdio_register_driver(&bt_mrvl_sdio) != 0) {
BT_ERR("SDIO Driver Registration Failed");
- BT_DBG("Leave");
return -ENODEV;
}
/* Clear the flag in case user removes the card. */
user_rmmod = 0;
- BT_DBG("Leave");
-
return 0;
}
static void btmrvl_sdio_exit_module(void)
{
- BT_DBG("Enter");
-
/* Set the flag as user is removing this module. */
user_rmmod = 1;
sdio_unregister_driver(&bt_mrvl_sdio);
-
- BT_DBG("Leave");
}
module_init(btmrvl_sdio_init_module);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.