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V4L/DVB (11786): xc5000: handle tuner reset failures properly 

Properly handle tuner reset failures (before it was always returning success)

Signed-off-by: Devin Heitmueller <devin.heitmueller@gmail.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Devin Heitmueller 2008-11-15 23:29:11 -03:00 коммит произвёл Mauro Carvalho Chehab
Родитель 8475cbcb0f
Коммит 91bd625e21
1 изменённых файлов: 13 добавлений и 14 удалений
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27
drivers/media/common/tuners/xc5000.c
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@ -191,10 +191,10 @@ static struct XC_TV_STANDARD XC5000_Standard[MAX_TV_STANDARD] = {
{"FM Radio-INPUT1", 0x0208, 0x9002}
};
static int xc5000_is_firmware_loaded(struct dvb_frontend *fe);
static int xc5000_writeregs(struct xc5000_priv *priv, u8 *buf, u8 len);
static int xc5000_readregs(struct xc5000_priv *priv, u8 *buf, u8 len);
static void xc5000_TunerReset(struct dvb_frontend *fe);
static int xc5000_is_firmware_loaded(struct dvb_frontend *fe);
static int xc5000_writeregs(struct xc5000_priv *priv, u8 *buf, u8 len);
static int xc5000_readregs(struct xc5000_priv *priv, u8 *buf, u8 len);
static int xc5000_TunerReset(struct dvb_frontend *fe);
static int xc_send_i2c_data(struct xc5000_priv *priv, u8 *buf, int len)
{
@ -208,18 +208,12 @@ static int xc_read_i2c_data(struct xc5000_priv *priv, u8 *buf, int len)
? XC_RESULT_I2C_READ_FAILURE : XC_RESULT_SUCCESS;
}
static int xc_reset(struct dvb_frontend *fe)
{
xc5000_TunerReset(fe);
return XC_RESULT_SUCCESS;
}
static void xc_wait(int wait_ms)
{
msleep(wait_ms);
}
static void xc5000_TunerReset(struct dvb_frontend *fe)
static int xc5000_TunerReset(struct dvb_frontend *fe)
{
struct xc5000_priv *priv = fe->tuner_priv;
int ret;
@ -232,10 +226,15 @@ static void xc5000_TunerReset(struct dvb_frontend *fe)
priv->i2c_props.adap->algo_data,
DVB_FRONTEND_COMPONENT_TUNER,
XC5000_TUNER_RESET, 0);
if (ret)
if (ret) {
printk(KERN_ERR "xc5000: reset failed\n");
} else
return XC_RESULT_RESET_FAILURE;
}
} else {
printk(KERN_ERR "xc5000: no tuner reset callback function, fatal\n");
return XC_RESULT_RESET_FAILURE;
}
return XC_RESULT_SUCCESS;
}
static int xc_write_reg(struct xc5000_priv *priv, u16 regAddr, u16 i2cData)
@ -309,7 +308,7 @@ static int xc_load_i2c_sequence(struct dvb_frontend *fe, const u8 *i2c_sequence)
len = i2c_sequence[index] * 256 + i2c_sequence[index+1];
if (len == 0x0000) {
/* RESET command */
result = xc_reset(fe);
result = xc5000_TunerReset(fe);
index += 2;
if (result != XC_RESULT_SUCCESS)
return result;