From 9e422f64fa74e2d68e198c6a3d8020903152ce52 Mon Sep 17 00:00:00 2001 From: Stefan Pöschel Date: Mon, 11 Jul 2016 14:31:59 -0300 Subject: [media] af9035: fix dual tuner detection with PCTV 79e MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The value 5 of the EEPROM_TS_MODE register (meaning dual tuner presence) is only valid for AF9035 devices. For IT9135 devices it is invalid and led to a false positive dual tuner mode detection with PCTV 79e. Therefore on non-AF9035 devices and with value 5 the driver now defaults to single tuner mode and outputs a regarding info message to log. This fixes Bugzilla bug #118561. Reported-by: Marc Duponcheel Signed-off-by: Stefan Pöschel Signed-off-by: Antti Palosaari Signed-off-by: Mauro Carvalho Chehab --- drivers/media/usb/dvb-usb-v2/af9035.c | 50 +++++++++++++++++++++++------------ drivers/media/usb/dvb-usb-v2/af9035.h | 2 +- 2 files changed, 34 insertions(+), 18 deletions(-) (limited to 'drivers/media/usb') diff --git a/drivers/media/usb/dvb-usb-v2/af9035.c b/drivers/media/usb/dvb-usb-v2/af9035.c index eabede44ad88..ca018cd3fcd4 100644 --- a/drivers/media/usb/dvb-usb-v2/af9035.c +++ b/drivers/media/usb/dvb-usb-v2/af9035.c @@ -496,7 +496,8 @@ static int af9035_identify_state(struct dvb_usb_device *d, const char **name) { struct state *state = d_to_priv(d); struct usb_interface *intf = d->intf; - int ret; + int ret, ts_mode_invalid; + u8 tmp; u8 wbuf[1] = { 1 }; u8 rbuf[4]; struct usb_req req = { CMD_FW_QUERYINFO, 0, sizeof(wbuf), wbuf, @@ -530,6 +531,36 @@ static int af9035_identify_state(struct dvb_usb_device *d, const char **name) state->eeprom_addr = EEPROM_BASE_AF9035; } + + /* check for dual tuner mode */ + ret = af9035_rd_reg(d, state->eeprom_addr + EEPROM_TS_MODE, &tmp); + if (ret < 0) + goto err; + + ts_mode_invalid = 0; + switch (tmp) { + case 0: + break; + case 1: + case 3: + state->dual_mode = true; + break; + case 5: + if (state->chip_type != 0x9135 && state->chip_type != 0x9306) + state->dual_mode = true; /* AF9035 */ + else + ts_mode_invalid = 1; + break; + default: + ts_mode_invalid = 1; + } + + dev_dbg(&intf->dev, "ts mode=%d dual mode=%d\n", tmp, state->dual_mode); + + if (ts_mode_invalid) + dev_info(&intf->dev, "ts mode=%d not supported, defaulting to single tuner mode!", tmp); + + ret = af9035_ctrl_msg(d, &req); if (ret < 0) goto err; @@ -698,11 +729,7 @@ static int af9035_download_firmware(struct dvb_usb_device *d, * which is done by master demod. * Master feeds also clock and controls power via GPIO. */ - ret = af9035_rd_reg(d, state->eeprom_addr + EEPROM_TS_MODE, &tmp); - if (ret < 0) - goto err; - - if (tmp == 1 || tmp == 3 || tmp == 5) { + if (state->dual_mode) { /* configure gpioh1, reset & power slave demod */ ret = af9035_wr_reg_mask(d, 0x00d8b0, 0x01, 0x01); if (ret < 0) @@ -835,17 +862,6 @@ static int af9035_read_config(struct dvb_usb_device *d) } - - /* check if there is dual tuners */ - ret = af9035_rd_reg(d, state->eeprom_addr + EEPROM_TS_MODE, &tmp); - if (ret < 0) - goto err; - - if (tmp == 1 || tmp == 3 || tmp == 5) - state->dual_mode = true; - - dev_dbg(&intf->dev, "ts mode=%d dual mode=%d\n", tmp, state->dual_mode); - if (state->dual_mode) { /* read 2nd demodulator I2C address */ ret = af9035_rd_reg(d, diff --git a/drivers/media/usb/dvb-usb-v2/af9035.h b/drivers/media/usb/dvb-usb-v2/af9035.h index c91d1a3789e6..1f83c9218ad0 100644 --- a/drivers/media/usb/dvb-usb-v2/af9035.h +++ b/drivers/media/usb/dvb-usb-v2/af9035.h @@ -113,7 +113,7 @@ static const u32 clock_lut_it9135[] = { * 0 TS * 1 DCA + PIP * 3 PIP - * 5 DCA + PIP + * 5 DCA + PIP (AF9035 only) * n DCA * * Values 0, 3 and 5 are seen to this day. 0 for single TS and 3/5 for dual TS. -- cgit v1.2.3