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path: root/drivers/net/wireless/libertas/if_cs.c
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Diffstat (limited to 'drivers/net/wireless/libertas/if_cs.c')
-rw-r--r--drivers/net/wireless/libertas/if_cs.c199
1 files changed, 99 insertions, 100 deletions
diff --git a/drivers/net/wireless/libertas/if_cs.c b/drivers/net/wireless/libertas/if_cs.c
index fc8121190d3..f499efc6abc 100644
--- a/drivers/net/wireless/libertas/if_cs.c
+++ b/drivers/net/wireless/libertas/if_cs.c
@@ -21,6 +21,8 @@
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/delay.h>
@@ -312,7 +314,8 @@ static int if_cs_poll_while_fw_download(struct if_cs_card *card, uint addr, u8 r
#define CF8385_MANFID 0x02df
#define CF8385_CARDID 0x8103
-/* FIXME: just use the 'driver_info' field of 'struct pcmcia_device_id' when
+/*
+ * FIXME: just use the 'driver_info' field of 'struct pcmcia_device_id' when
* that gets fixed. Currently there's no way to access it from the probe hook.
*/
static inline u32 get_model(u16 manf_id, u16 card_id)
@@ -361,7 +364,7 @@ static int if_cs_send_cmd(struct lbs_private *priv, u8 *buf, u16 nb)
if (status & IF_CS_BIT_COMMAND)
break;
if (++loops > 100) {
- lbs_pr_err("card not ready for commands\n");
+ netdev_err(priv->dev, "card not ready for commands\n");
goto done;
}
mdelay(1);
@@ -431,14 +434,16 @@ static int if_cs_receive_cmdres(struct lbs_private *priv, u8 *data, u32 *len)
/* is hardware ready? */
status = if_cs_read16(priv->card, IF_CS_CARD_STATUS);
if ((status & IF_CS_BIT_RESP) == 0) {
- lbs_pr_err("no cmd response in card\n");
+ netdev_err(priv->dev, "no cmd response in card\n");
*len = 0;
goto out;
}
*len = if_cs_read16(priv->card, IF_CS_RESP_LEN);
if ((*len == 0) || (*len > LBS_CMD_BUFFER_SIZE)) {
- lbs_pr_err("card cmd buffer has invalid # of bytes (%d)\n", *len);
+ netdev_err(priv->dev,
+ "card cmd buffer has invalid # of bytes (%d)\n",
+ *len);
goto out;
}
@@ -472,7 +477,9 @@ static struct sk_buff *if_cs_receive_data(struct lbs_private *priv)
len = if_cs_read16(priv->card, IF_CS_READ_LEN);
if (len == 0 || len > MRVDRV_ETH_RX_PACKET_BUFFER_SIZE) {
- lbs_pr_err("card data buffer has invalid # of bytes (%d)\n", len);
+ netdev_err(priv->dev,
+ "card data buffer has invalid # of bytes (%d)\n",
+ len);
priv->dev->stats.rx_dropped++;
goto dat_err;
}
@@ -621,8 +628,10 @@ static int if_cs_prog_helper(struct if_cs_card *card, const struct firmware *fw)
if (remain < count)
count = remain;
- /* "write the number of bytes to be sent to the I/O Command
- * write length register" */
+ /*
+ * "write the number of bytes to be sent to the I/O Command
+ * write length register"
+ */
if_cs_write16(card, IF_CS_CMD_LEN, count);
/* "write this to I/O Command port register as 16 bit writes */
@@ -631,21 +640,27 @@ static int if_cs_prog_helper(struct if_cs_card *card, const struct firmware *fw)
&fw->data[sent],
count >> 1);
- /* "Assert the download over interrupt command in the Host
- * status register" */
+ /*
+ * "Assert the download over interrupt command in the Host
+ * status register"
+ */
if_cs_write8(card, IF_CS_HOST_STATUS, IF_CS_BIT_COMMAND);
- /* "Assert the download over interrupt command in the Card
- * interrupt case register" */
+ /*
+ * "Assert the download over interrupt command in the Card
+ * interrupt case register"
+ */
if_cs_write16(card, IF_CS_HOST_INT_CAUSE, IF_CS_BIT_COMMAND);
- /* "The host polls the Card Status register ... for 50 ms before
- declaring a failure */
+ /*
+ * "The host polls the Card Status register ... for 50 ms before
+ * declaring a failure"
+ */
ret = if_cs_poll_while_fw_download(card, IF_CS_CARD_STATUS,
IF_CS_BIT_COMMAND);
if (ret < 0) {
- lbs_pr_err("can't download helper at 0x%x, ret %d\n",
- sent, ret);
+ pr_err("can't download helper at 0x%x, ret %d\n",
+ sent, ret);
goto done;
}
@@ -675,7 +690,7 @@ static int if_cs_prog_real(struct if_cs_card *card, const struct firmware *fw)
ret = if_cs_poll_while_fw_download(card, IF_CS_SQ_READ_LOW,
IF_CS_SQ_HELPER_OK);
if (ret < 0) {
- lbs_pr_err("helper firmware doesn't answer\n");
+ pr_err("helper firmware doesn't answer\n");
goto done;
}
@@ -683,13 +698,13 @@ static int if_cs_prog_real(struct if_cs_card *card, const struct firmware *fw)
len = if_cs_read16(card, IF_CS_SQ_READ_LOW);
if (len & 1) {
retry++;
- lbs_pr_info("odd, need to retry this firmware block\n");
+ pr_info("odd, need to retry this firmware block\n");
} else {
retry = 0;
}
if (retry > 20) {
- lbs_pr_err("could not download firmware\n");
+ pr_err("could not download firmware\n");
ret = -ENODEV;
goto done;
}
@@ -709,20 +724,60 @@ static int if_cs_prog_real(struct if_cs_card *card, const struct firmware *fw)
ret = if_cs_poll_while_fw_download(card, IF_CS_CARD_STATUS,
IF_CS_BIT_COMMAND);
if (ret < 0) {
- lbs_pr_err("can't download firmware at 0x%x\n", sent);
+ pr_err("can't download firmware at 0x%x\n", sent);
goto done;
}
}
ret = if_cs_poll_while_fw_download(card, IF_CS_SCRATCH, 0x5a);
if (ret < 0)
- lbs_pr_err("firmware download failed\n");
+ pr_err("firmware download failed\n");
done:
lbs_deb_leave_args(LBS_DEB_CS, "ret %d", ret);
return ret;
}
+static void if_cs_prog_firmware(struct lbs_private *priv, int ret,
+ const struct firmware *helper,
+ const struct firmware *mainfw)
+{
+ struct if_cs_card *card = priv->card;
+
+ if (ret) {
+ pr_err("failed to find firmware (%d)\n", ret);
+ return;
+ }
+
+ /* Load the firmware */
+ ret = if_cs_prog_helper(card, helper);
+ if (ret == 0 && (card->model != MODEL_8305))
+ ret = if_cs_prog_real(card, mainfw);
+ if (ret)
+ return;
+
+ /* Now actually get the IRQ */
+ ret = request_irq(card->p_dev->irq, if_cs_interrupt,
+ IRQF_SHARED, DRV_NAME, card);
+ if (ret) {
+ pr_err("error in request_irq\n");
+ return;
+ }
+
+ /*
+ * Clear any interrupt cause that happened while sending
+ * firmware/initializing card
+ */
+ if_cs_write16(card, IF_CS_CARD_INT_CAUSE, IF_CS_BIT_MASK);
+ if_cs_enable_ints(card);
+
+ /* And finally bring the card up */
+ priv->fw_ready = 1;
+ if (lbs_start_card(priv) != 0) {
+ pr_err("could not activate card\n");
+ free_irq(card->p_dev->irq, card);
+ }
+}
/********************************************************************/
@@ -750,7 +805,8 @@ static int if_cs_host_to_card(struct lbs_private *priv,
ret = if_cs_send_cmd(priv, buf, nb);
break;
default:
- lbs_pr_err("%s: unsupported type %d\n", __func__, type);
+ netdev_err(priv->dev, "%s: unsupported type %d\n",
+ __func__, type);
}
lbs_deb_leave_args(LBS_DEB_CS, "ret %d", ret);
@@ -779,7 +835,7 @@ static int if_cs_ioprobe(struct pcmcia_device *p_dev, void *priv_data)
p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
if (p_dev->resource[1]->end) {
- lbs_pr_err("wrong CIS (check number of IO windows)\n");
+ pr_err("wrong CIS (check number of IO windows)\n");
return -ENODEV;
}
@@ -793,23 +849,20 @@ static int if_cs_probe(struct pcmcia_device *p_dev)
unsigned int prod_id;
struct lbs_private *priv;
struct if_cs_card *card;
- const struct firmware *helper = NULL;
- const struct firmware *mainfw = NULL;
lbs_deb_enter(LBS_DEB_CS);
card = kzalloc(sizeof(struct if_cs_card), GFP_KERNEL);
- if (!card) {
- lbs_pr_err("error in kzalloc\n");
+ if (!card)
goto out;
- }
+
card->p_dev = p_dev;
p_dev->priv = card;
p_dev->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO;
if (pcmcia_loop_config(p_dev, if_cs_ioprobe, NULL)) {
- lbs_pr_err("error in pcmcia_loop_config\n");
+ pr_err("error in pcmcia_loop_config\n");
goto out1;
}
@@ -825,14 +878,14 @@ static int if_cs_probe(struct pcmcia_device *p_dev)
card->iobase = ioport_map(p_dev->resource[0]->start,
resource_size(p_dev->resource[0]));
if (!card->iobase) {
- lbs_pr_err("error in ioport_map\n");
+ pr_err("error in ioport_map\n");
ret = -EIO;
goto out1;
}
ret = pcmcia_enable_device(p_dev);
if (ret) {
- lbs_pr_err("error in pcmcia_enable_device\n");
+ pr_err("error in pcmcia_enable_device\n");
goto out2;
}
@@ -841,54 +894,41 @@ static int if_cs_probe(struct pcmcia_device *p_dev)
/*
* Most of the libertas cards can do unaligned register access, but some
- * weird ones can not. That's especially true for the CF8305 card.
+ * weird ones cannot. That's especially true for the CF8305 card.
*/
- card->align_regs = 0;
+ card->align_regs = false;
card->model = get_model(p_dev->manf_id, p_dev->card_id);
if (card->model == MODEL_UNKNOWN) {
- lbs_pr_err("unsupported manf_id 0x%04x / card_id 0x%04x\n",
- p_dev->manf_id, p_dev->card_id);
+ pr_err("unsupported manf_id 0x%04x / card_id 0x%04x\n",
+ p_dev->manf_id, p_dev->card_id);
+ ret = -ENODEV;
goto out2;
}
/* Check if we have a current silicon */
prod_id = if_cs_read8(card, IF_CS_PRODUCT_ID);
if (card->model == MODEL_8305) {
- card->align_regs = 1;
+ card->align_regs = true;
if (prod_id < IF_CS_CF8305_B1_REV) {
- lbs_pr_err("8305 rev B0 and older are not supported\n");
+ pr_err("8305 rev B0 and older are not supported\n");
ret = -ENODEV;
goto out2;
}
}
if ((card->model == MODEL_8381) && prod_id < IF_CS_CF8381_B3_REV) {
- lbs_pr_err("8381 rev B2 and older are not supported\n");
+ pr_err("8381 rev B2 and older are not supported\n");
ret = -ENODEV;
goto out2;
}
if ((card->model == MODEL_8385) && prod_id < IF_CS_CF8385_B1_REV) {
- lbs_pr_err("8385 rev B0 and older are not supported\n");
+ pr_err("8385 rev B0 and older are not supported\n");
ret = -ENODEV;
goto out2;
}
- ret = lbs_get_firmware(&p_dev->dev, NULL, NULL, card->model,
- &fw_table[0], &helper, &mainfw);
- if (ret) {
- lbs_pr_err("failed to find firmware (%d)\n", ret);
- goto out2;
- }
-
- /* Load the firmware early, before calling into libertas.ko */
- ret = if_cs_prog_helper(card, helper);
- if (ret == 0 && (card->model != MODEL_8305))
- ret = if_cs_prog_real(card, mainfw);
- if (ret)
- goto out2;
-
/* Make this card known to the libertas driver */
priv = lbs_add_card(card, &p_dev->dev);
if (!priv) {
@@ -896,35 +936,22 @@ static int if_cs_probe(struct pcmcia_device *p_dev)
goto out2;
}
- /* Finish setting up fields in lbs_private */
+ /* Set up fields in lbs_private */
card->priv = priv;
priv->card = card;
priv->hw_host_to_card = if_cs_host_to_card;
priv->enter_deep_sleep = NULL;
priv->exit_deep_sleep = NULL;
priv->reset_deep_sleep_wakeup = NULL;
- priv->fw_ready = 1;
- /* Now actually get the IRQ */
- ret = request_irq(p_dev->irq, if_cs_interrupt,
- IRQF_SHARED, DRV_NAME, card);
+ /* Get firmware */
+ ret = lbs_get_firmware_async(priv, &p_dev->dev, card->model, fw_table,
+ if_cs_prog_firmware);
if (ret) {
- lbs_pr_err("error in request_irq\n");
- goto out3;
- }
-
- /* Clear any interrupt cause that happend while sending
- * firmware/initializing card */
- if_cs_write16(card, IF_CS_CARD_INT_CAUSE, IF_CS_BIT_MASK);
- if_cs_enable_ints(card);
-
- /* And finally bring the card up */
- if (lbs_start_card(priv) != 0) {
- lbs_pr_err("could not activate card\n");
+ pr_err("failed to find firmware (%d)\n", ret);
goto out3;
}
- ret = 0;
goto out;
out3:
@@ -934,11 +961,6 @@ out2:
out1:
pcmcia_disable_device(p_dev);
out:
- if (helper)
- release_firmware(helper);
- if (mainfw)
- release_firmware(mainfw);
-
lbs_deb_leave_args(LBS_DEB_CS, "ret %d", ret);
return ret;
}
@@ -965,7 +987,7 @@ static void if_cs_detach(struct pcmcia_device *p_dev)
/* Module initialization */
/********************************************************************/
-static struct pcmcia_device_id if_cs_ids[] = {
+static const struct pcmcia_device_id if_cs_ids[] = {
PCMCIA_DEVICE_MANF_CARD(CF8305_MANFID, CF8305_CARDID),
PCMCIA_DEVICE_MANF_CARD(CF8381_MANFID, CF8381_CARDID),
PCMCIA_DEVICE_MANF_CARD(CF8385_MANFID, CF8385_CARDID),
@@ -974,7 +996,6 @@ static struct pcmcia_device_id if_cs_ids[] = {
};
MODULE_DEVICE_TABLE(pcmcia, if_cs_ids);
-
static struct pcmcia_driver lbs_driver = {
.owner = THIS_MODULE,
.name = DRV_NAME,
@@ -982,26 +1003,4 @@ static struct pcmcia_driver lbs_driver = {
.remove = if_cs_detach,
.id_table = if_cs_ids,
};
-
-
-static int __init if_cs_init(void)
-{
- int ret;
-
- lbs_deb_enter(LBS_DEB_CS);
- ret = pcmcia_register_driver(&lbs_driver);
- lbs_deb_leave(LBS_DEB_CS);
- return ret;
-}
-
-
-static void __exit if_cs_exit(void)
-{
- lbs_deb_enter(LBS_DEB_CS);
- pcmcia_unregister_driver(&lbs_driver);
- lbs_deb_leave(LBS_DEB_CS);
-}
-
-
-module_init(if_cs_init);
-module_exit(if_cs_exit);
+module_pcmcia_driver(lbs_driver);