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[media] xc5000: support 32MHz & 31.875MHz xtal using the 41.024.5 firmware

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Rather than loading firmware specific for the xtal frequency, just use
the standard firmware and set the xtal frequency after firmware upload.

Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Michael Krufky 2012-04-16 14:59:32 -03:00 committed by Mauro Carvalho Chehab
parent d5aeee8cb2
commit 7d3d0d8d6f
2 changed files with 36 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

39
drivers/media/common/tuners/xc5000.c
View File

@ -54,6 +54,7 @@ struct xc5000_priv {
struct list_head hybrid_tuner_instance_list;
u32 if_khz;
u32 xtal_khz;
u32 freq_hz;
u32 bandwidth;
u8 video_standard;
@ -214,9 +215,9 @@ static const struct xc5000_fw_cfg xc5000a_1_6_114 = {
.size = 12401,
};
static const struct xc5000_fw_cfg xc5000c_41_024_5_31875 = {
.name = "dvb-fe-xc5000c-41.024.5-31875.fw",
.size = 16503,
static const struct xc5000_fw_cfg xc5000c_41_024_5 = {
.name = "dvb-fe-xc5000c-41.024.5.fw",
.size = 16497,
};
static inline const struct xc5000_fw_cfg *xc5000_assign_firmware(int chip_id)
@ -226,7 +227,7 @@ static inline const struct xc5000_fw_cfg *xc5000_assign_firmware(int chip_id)
case XC5000A:
return &xc5000a_1_6_114;
case XC5000C:
return &xc5000c_41_024_5_31875;
return &xc5000c_41_024_5;
}
}
@ -572,6 +573,31 @@ static int xc_tune_channel(struct xc5000_priv *priv, u32 freq_hz, int mode)
return found;
}
static int xc_set_xtal(struct dvb_frontend *fe)
{
struct xc5000_priv *priv = fe->tuner_priv;
int ret = XC_RESULT_SUCCESS;
switch (priv->chip_id) {
default:
case XC5000A:
/* 32.000 MHz xtal is default */
break;
case XC5000C:
switch (priv->xtal_khz) {
default:
case 32000:
/* 32.000 MHz xtal is default */
break;
case 31875:
/* 31.875 MHz xtal configuration */
ret = xc_write_reg(priv, 0x000f, 0x8081);
break;
}
break;
}
return ret;
}
static int xc5000_fwupload(struct dvb_frontend *fe)
{
@ -603,6 +629,8 @@ static int xc5000_fwupload(struct dvb_frontend *fe)
} else {
printk(KERN_INFO "xc5000: firmware uploading...\n");
ret = xc_load_i2c_sequence(fe, fw->data);
if (XC_RESULT_SUCCESS == ret)
ret = xc_set_xtal(fe);
printk(KERN_INFO "xc5000: firmware upload complete...\n");
}
@ -1164,6 +1192,9 @@ struct dvb_frontend *xc5000_attach(struct dvb_frontend *fe,
priv->if_khz = cfg->if_khz;
}
if (priv->xtal_khz == 0)
priv->xtal_khz = cfg->xtal_khz;
if (priv->radio_input == 0)
priv->radio_input = cfg->radio_input;

1
drivers/media/common/tuners/xc5000.h
View File

@ -34,6 +34,7 @@ struct xc5000_config {
u8 i2c_address;
u32 if_khz;
u8 radio_input;
u32 xtal_khz;
int chip_id;
};