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[media] xc5000: drivers should specify chip revision rather than firmware

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Specify chip revision at attach time rather than a firmware image.
This is a better way to ensure that the correct firmware is loaded
for the correct revision of the chip.

Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Michael Krufky 2012-02-08 14:57:39 -03:00 committed by Mauro Carvalho Chehab
parent ddea427fb3
commit 6fab81dfdc
3 changed files with 18 additions and 20 deletions
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27
drivers/media/common/tuners/xc5000.c
View file

@ -60,7 +60,7 @@ struct xc5000_priv {
u8 rf_mode;
u8 radio_input;
struct xc5000_fw_cfg *fw;
int chip_id;
};
/* Misc Defines */
@ -219,13 +219,13 @@ static struct xc5000_fw_cfg xc5000c_41_024_5_31875 = {
.size = 16503,
};
static inline struct xc5000_fw_cfg *xc5000_assign_firmware(int fw)
static inline struct xc5000_fw_cfg *xc5000_assign_firmware(int chip_id)
{
switch (fw) {
switch (chip_id) {
default:
case XC5000_FW_A_1_6_114:
case XC5000A:
return &xc5000a_1_6_114;
case XC5000_FW_C_41_024_5_31875:
case XC5000C:
return &xc5000c_41_024_5_31875;
}
}
@ -578,12 +578,13 @@ static int xc5000_fwupload(struct dvb_frontend *fe)
struct xc5000_priv *priv = fe->tuner_priv;
const struct firmware *fw;
int ret;
struct xc5000_fw_cfg *desired_fw = xc5000_assign_firmware(priv->chip_id);
/* request the firmware, this will block and timeout */
printk(KERN_INFO "xc5000: waiting for firmware upload (%s)...\n",
priv->fw->name);
desired_fw->name);
ret = request_firmware(&fw, priv->fw->name,
ret = request_firmware(&fw, desired_fw->name,
priv->i2c_props.adap->dev.parent);
if (ret) {
printk(KERN_ERR "xc5000: Upload failed. (file not found?)\n");
@ -595,7 +596,7 @@ static int xc5000_fwupload(struct dvb_frontend *fe)
ret = XC_RESULT_SUCCESS;
}
if (fw->size != priv->fw->size) {
if (fw->size != desired_fw->size) {
printk(KERN_ERR "xc5000: firmware incorrect size\n");
ret = XC_RESULT_RESET_FAILURE;
} else {
@ -1165,12 +1166,12 @@ struct dvb_frontend *xc5000_attach(struct dvb_frontend *fe,
if (priv->radio_input == 0)
priv->radio_input = cfg->radio_input;
/* don't override firmware filename if it's already been set
/* don't override chip id if it's already been set
unless explicitly specified */
if ((priv->fw == NULL) || (cfg->fw))
/* use default firmware if none specified */
priv->fw = xc5000_assign_firmware((cfg->fw) ?
cfg->fw : XC5000_DEFAULT_FIRMWARE);
if ((priv->chip_id == 0) || (cfg->chip_id))
/* use default chip id if none specified, set to 0 so
it can be overridden if this is a hybrid driver */
priv->chip_id = (cfg->chip_id) ? cfg->chip_id : 0;
/* Check if firmware has been loaded. It is possible that another
instance of the driver has loaded the firmware.

9
drivers/media/common/tuners/xc5000.h
View file

@ -27,18 +27,15 @@
struct dvb_frontend;
struct i2c_adapter;
#define XC5000_FW_A_1_6_114 1
#define XC5000_FW_C_41_024_5_31875 2
#define XC5000_DEFAULT_FIRMWARE XC5000_FW_A_1_6_114
#define XC5000C_DEFAULT_FIRMWARE XC5000_FW_C_41_024_5_31875
#define XC5000A 1
#define XC5000C 2
struct xc5000_config {
u8 i2c_address;
u32 if_khz;
u8 radio_input;
int fw;
int chip_id;
};
/* xc5000 callback command */

2
drivers/media/video/tuner-core.c
View file

@ -386,7 +386,7 @@ static void set_type(struct i2c_client *c, unsigned int type,
.i2c_address = t->i2c->addr,
/* if_khz will be set at dvb_attach() */
.if_khz = 0,
.fw = XC5000C_DEFAULT_FIRMWARE,
.chip_id = XC5000C,
};
if (!dvb_attach(xc5000_attach,