From 80b522085a2c870ba0c0bdf2415cc925d7c86ca5 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Mon, 5 Nov 2007 09:07:13 -0300 Subject: [PATCH] V4L/DVB (6561): Fix xc2028 get register functions and calls The status registers require a dword for setting register. Fix it on all occurrences, and at xc3028_get_reg. Also, improves the hardware/firmware detection printk. Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/tuner-xc2028.c | 25 ++++++++++++++++--------- 1 file changed, 16 insertions(+), 9 deletions(-) diff --git a/drivers/media/video/tuner-xc2028.c b/drivers/media/video/tuner-xc2028.c index b4c88ed12a8a..ecfc39036f90 100644 --- a/drivers/media/video/tuner-xc2028.c +++ b/drivers/media/video/tuner-xc2028.c @@ -91,16 +91,17 @@ struct xc2028_data { msleep(10); \ } while (0) -static int xc2028_get_reg(struct xc2028_data *priv, u16 reg) +static unsigned int xc2028_get_reg(struct xc2028_data *priv, u16 reg) { int rc; unsigned char buf[2]; tuner_info("%s called\n", __FUNCTION__); - buf[0] = reg; + buf[0] = reg>>8; + buf[1] = (unsigned char) reg; - i2c_send(rc, priv, buf, 1); + i2c_send(rc, priv, buf, 2); if (rc < 0) return rc; @@ -372,7 +373,7 @@ static int check_firmware(struct dvb_frontend *fe, enum tuner_mode new_mode, v4l2_std_id std, fe_bandwidth_t bandwidth) { struct xc2028_data *priv = fe->tuner_priv; - int rc, version; + int rc, version, hwmodel; v4l2_std_id std0 = 0; unsigned int type0 = 0, type = 0; int change_digital_bandwidth; @@ -484,9 +485,13 @@ static int check_firmware(struct dvb_frontend *fe, enum tuner_mode new_mode, if (rc < 0) return rc; - version = xc2028_get_reg(priv, 0x4); - tuner_info("Firmware version is %d.%d\n", - (version >> 4) & 0x0f, (version) & 0x0f); + version = xc2028_get_reg(priv, 0x0004); + hwmodel = xc2028_get_reg(priv, 0x0008); + + tuner_info("Device is Xceive %d version %d.%d, " + "firmware version %d.%d\n", + hwmodel, (version & 0xf000) >> 12, (version & 0xf00) >> 8, + (version & 0xf0) >> 4, version & 0xf); priv->firm_type = std; @@ -504,13 +509,15 @@ static int xc2028_signal(struct dvb_frontend *fe, u16 *strength) *strength = 0; - frq_lock = xc2028_get_reg(priv, 0x2); + /* Sync Lock Indicator */ + frq_lock = xc2028_get_reg(priv, 0x0002); if (frq_lock <= 0) goto ret; /* Frequency is locked. Return signal quality */ - signal = xc2028_get_reg(priv, 0x40); + /* Get SNR of the video signal */ + signal = xc2028_get_reg(priv, 0x0040); if (signal <= 0) signal = frq_lock; -- 2.20.1