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libertas: [cs] use common firmware request helper and new firmware locations

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linux-firmware puts libertas firmware in /libertas.  Fix the driver to
look there first, but fall back to the old firmware names if the new
ones don't exist.

Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Dan Williams 2010-08-07 21:15:19 -05:00 committed by John W. Linville
parent 72f7a6671e
commit 82222e9ba7
1 changed files with 74 additions and 56 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

130
drivers/net/wireless/libertas/if_cs.c
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@ -49,7 +49,6 @@
MODULE_AUTHOR("Holger Schurig <hs4233@mail.mn-solutions.de>");
MODULE_DESCRIPTION("Driver for Marvell 83xx compact flash WLAN cards");
MODULE_LICENSE("GPL");
MODULE_FIRMWARE("libertas_cs_helper.fw");
@ -62,9 +61,34 @@ struct if_cs_card {
struct lbs_private *priv;
void __iomem *iobase;
bool align_regs;
u32 model;
};
enum {
MODEL_UNKNOWN = 0x00,
MODEL_8305 = 0x01,
MODEL_8381 = 0x02,
MODEL_8385 = 0x03
};
static const struct lbs_fw_table fw_table[] = {
{ MODEL_8305, "libertas/cf8305.bin", NULL },
{ MODEL_8305, "libertas_cs_helper.fw", NULL },
{ MODEL_8381, "libertas/cf8381_helper.bin", "libertas/cf8381.bin" },
{ MODEL_8381, "libertas_cs_helper.fw", "libertas_cs.fw" },
{ MODEL_8385, "libertas/cf8385_helper.bin", "libertas/cf8385.bin" },
{ MODEL_8385, "libertas_cs_helper.fw", "libertas_cs.fw" },
{ 0, NULL, NULL }
};
MODULE_FIRMWARE("libertas/cf8305.bin");
MODULE_FIRMWARE("libertas/cf8381_helper.bin");
MODULE_FIRMWARE("libertas/cf8381.bin");
MODULE_FIRMWARE("libertas/cf8385_helper.bin");
MODULE_FIRMWARE("libertas/cf8385.bin");
MODULE_FIRMWARE("libertas_cs_helper.fw");
MODULE_FIRMWARE("libertas_cs.fw");
/********************************************************************/
/* Hardware access */
@ -290,22 +314,19 @@ 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
static inline int if_cs_hw_is_cf8305(struct pcmcia_device *p_dev)
/* 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)
{
return (p_dev->manf_id == CF8305_MANFID &&
p_dev->card_id == CF8305_CARDID);
}
static inline int if_cs_hw_is_cf8381(struct pcmcia_device *p_dev)
{
return (p_dev->manf_id == CF8381_MANFID &&
p_dev->card_id == CF8381_CARDID);
}
static inline int if_cs_hw_is_cf8385(struct pcmcia_device *p_dev)
{
return (p_dev->manf_id == CF8385_MANFID &&
p_dev->card_id == CF8385_CARDID);
/* NOTE: keep in sync with if_cs_ids */
if (manf_id == CF8305_MANFID && card_id == CF8305_CARDID)
return MODEL_8305;
else if (manf_id == CF8381_MANFID && card_id == CF8381_CARDID)
return MODEL_8381;
else if (manf_id == CF8385_MANFID && card_id == CF8385_CARDID)
return MODEL_8385;
return MODEL_UNKNOWN;
}
/********************************************************************/
@ -559,12 +580,11 @@ static irqreturn_t if_cs_interrupt(int irq, void *data)
*
* Return 0 on success
*/
static int if_cs_prog_helper(struct if_cs_card *card)
static int if_cs_prog_helper(struct if_cs_card *card, const struct firmware *fw)
{
int ret = 0;
int sent = 0;
u8 scratch;
const struct firmware *fw;
lbs_deb_enter(LBS_DEB_CS);
@ -590,14 +610,6 @@ static int if_cs_prog_helper(struct if_cs_card *card)
goto done;
}
/* TODO: make firmware file configurable */
ret = request_firmware(&fw, "libertas_cs_helper.fw",
&card->p_dev->dev);
if (ret) {
lbs_pr_err("can't load helper firmware\n");
ret = -ENODEV;
goto done;
}
lbs_deb_cs("helper size %td\n", fw->size);
/* "Set the 5 bytes of the helper image to 0" */
@ -636,7 +648,7 @@ static int if_cs_prog_helper(struct if_cs_card *card)
if (ret < 0) {
lbs_pr_err("can't download helper at 0x%x, ret %d\n",
sent, ret);
goto err_release;
goto done;
}
if (count == 0)
@ -645,17 +657,14 @@ static int if_cs_prog_helper(struct if_cs_card *card)
sent += count;
}
err_release:
release_firmware(fw);
done:
lbs_deb_leave_args(LBS_DEB_CS, "ret %d", ret);
return ret;
}
static int if_cs_prog_real(struct if_cs_card *card)
static int if_cs_prog_real(struct if_cs_card *card, const struct firmware *fw)
{
const struct firmware *fw;
int ret = 0;
int retry = 0;
int len = 0;
@ -663,21 +672,13 @@ static int if_cs_prog_real(struct if_cs_card *card)
lbs_deb_enter(LBS_DEB_CS);
/* TODO: make firmware file configurable */
ret = request_firmware(&fw, "libertas_cs.fw",
&card->p_dev->dev);
if (ret) {
lbs_pr_err("can't load firmware\n");
ret = -ENODEV;
goto done;
}
lbs_deb_cs("fw size %td\n", fw->size);
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");
goto err_release;
goto done;
}
for (sent = 0; sent < fw->size; sent += len) {
@ -692,7 +693,7 @@ static int if_cs_prog_real(struct if_cs_card *card)
if (retry > 20) {
lbs_pr_err("could not download firmware\n");
ret = -ENODEV;
goto err_release;
goto done;
}
if (retry) {
sent -= len;
@ -711,7 +712,7 @@ static int if_cs_prog_real(struct if_cs_card *card)
IF_CS_BIT_COMMAND);
if (ret < 0) {
lbs_pr_err("can't download firmware at 0x%x\n", sent);
goto err_release;
goto done;
}
}
@ -719,9 +720,6 @@ static int if_cs_prog_real(struct if_cs_card *card)
if (ret < 0)
lbs_pr_err("firmware download failed\n");
err_release:
release_firmware(fw);
done:
lbs_deb_leave_args(LBS_DEB_CS, "ret %d", ret);
return ret;
@ -825,6 +823,8 @@ 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);
@ -844,7 +844,6 @@ static int if_cs_probe(struct pcmcia_device *p_dev)
goto out1;
}
/*
* Allocate an interrupt line. Note that this does not assign
* a handler to the interrupt, unless the 'Handler' member of
@ -883,34 +882,47 @@ static int if_cs_probe(struct pcmcia_device *p_dev)
*/
card->align_regs = 0;
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);
goto out2;
}
/* Check if we have a current silicon */
prod_id = if_cs_read8(card, IF_CS_PRODUCT_ID);
if (if_cs_hw_is_cf8305(p_dev)) {
if (card->model == MODEL_8305) {
card->align_regs = 1;
if (prod_id < IF_CS_CF8305_B1_REV) {
lbs_pr_err("old chips like 8305 rev B3 "
"aren't supported\n");
lbs_pr_err("8305 rev B0 and older are not supported\n");
ret = -ENODEV;
goto out2;
}
}
if (if_cs_hw_is_cf8381(p_dev) && prod_id < IF_CS_CF8381_B3_REV) {
lbs_pr_err("old chips like 8381 rev B3 aren't supported\n");
if ((card->model == MODEL_8381) && prod_id < IF_CS_CF8381_B3_REV) {
lbs_pr_err("8381 rev B2 and older are not supported\n");
ret = -ENODEV;
goto out2;
}
if (if_cs_hw_is_cf8385(p_dev) && prod_id < IF_CS_CF8385_B1_REV) {
lbs_pr_err("old chips like 8385 rev B1 aren't supported\n");
if ((card->model == MODEL_8385) && prod_id < IF_CS_CF8385_B1_REV) {
lbs_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);
if (ret == 0 && !if_cs_hw_is_cf8305(p_dev))
ret = if_cs_prog_real(card);
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;
@ -959,6 +971,11 @@ 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;
}
@ -995,6 +1012,7 @@ static 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),
/* NOTE: keep in sync with get_model() */
PCMCIA_DEVICE_NULL,
};
MODULE_DEVICE_TABLE(pcmcia, if_cs_ids);