[06/10] V4L/DVB: cx231xx: better handle the master port enable command

Message ID	20100928154657.70843032@pedra (mailing list archive)
State	RFC
Headers	show Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id o8SIqvjK032037 for <patchwork-media@patchwork.kernel.org>; Tue, 28 Sep 2010 18:52:58 GMT Date: Tue, 28 Sep 2010 15:46:57 -0300 From: Mauro Carvalho Chehab <mchehab@redhat.com> To: Srinivasa.Deevi@conexant.com, Palash.Bandyopadhyay@conexant.com, dheitmueller@kernellabs.com, Linux Media Mailing List <linux-media@vger.kernel.org> Subject: [PATCH 06/10] V4L/DVB: cx231xx: better handle the master port enable command Message-ID: <20100928154657.70843032@pedra> In-Reply-To: <cover.1285699057.git.mchehab@redhat.com> References: <cover.1285699057.git.mchehab@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-media-owner@vger.kernel.org Precedence: bulk

diff --git a/drivers/media/video/cx231xx/cx231xx-avcore.c b/drivers/media/video/cx231xx/cx231xx-avcore.c index ab9fbf8..2d773b3 100644 --- a/drivers/media/video/cx231xx/cx231xx-avcore.c +++ b/drivers/media/video/cx231xx/cx231xx-avcore.c @@ -1268,36 +1268,39 @@ int cx231xx_set_agc_analog_digital_mux_select(struct cx231xx *dev, return status; } -int cx231xx_enable_i2c_for_tuner(struct cx231xx *dev, u8 I2CIndex) +int cx231xx_enable_i2c_port_3(struct cx231xx *dev, bool is_port_3) { u8 value[4] = { 0, 0, 0, 0 }; int status = 0; - - cx231xx_info("Changing the i2c port for tuner to %d\n", I2CIndex); + bool current_is_port_3; status = cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, PWR_CTL_EN, value, 4); if (status < 0) return status; - if (I2CIndex == I2C_1) { - if (value[0] & I2C_DEMOD_EN) { - value[0] &= ~I2C_DEMOD_EN; - status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER, - PWR_CTL_EN, value, 4); - } - } else { - if (!(value[0] & I2C_DEMOD_EN)) { - value[0] |= I2C_DEMOD_EN; - status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER, - PWR_CTL_EN, value, 4); - } - } + current_is_port_3 = value[0] & I2C_DEMOD_EN ? true : false; + + /* Just return, if already using the right port */ + if (current_is_port_3 == is_port_3) + return 0; + + if (is_port_3) + value[0] |= I2C_DEMOD_EN; + else + value[0] &= ~I2C_DEMOD_EN; + + cx231xx_info("Changing the i2c master port to %d\n", + is_port_3 ? 3 : 1); + + status = cx231xx_write_ctrl_reg(dev, VRT_SET_REGISTER, + PWR_CTL_EN, value, 4); return status; } -EXPORT_SYMBOL_GPL(cx231xx_enable_i2c_for_tuner); +EXPORT_SYMBOL_GPL(cx231xx_enable_i2c_port_3); + void update_HH_register_after_set_DIF(struct cx231xx *dev) { /* @@ -2324,26 +2327,16 @@ int cx231xx_set_power_mode(struct cx231xx *dev, enum AV_MODE mode) msleep(PWR_SLEEP_INTERVAL); } - if ((dev->model == CX231XX_BOARD_CNXT_CARRAERA) || - (dev->model == CX231XX_BOARD_CNXT_RDE_250) || - (dev->model == CX231XX_BOARD_CNXT_SHELBY) || - (dev->model == CX231XX_BOARD_CNXT_RDU_250)) { - /* tuner path to channel 1 from port 3 */ - cx231xx_enable_i2c_for_tuner(dev, I2C_3); + if (dev->board.tuner_type != TUNER_ABSENT) { + /* Enable tuner */ + cx231xx_enable_i2c_port_3(dev, true); /* reset the Tuner */ - cx231xx_gpio_set(dev, dev->board.tuner_gpio); + if (dev->board.tuner_gpio) + cx231xx_gpio_set(dev, dev->board.tuner_gpio); if (dev->cx231xx_reset_analog_tuner) dev->cx231xx_reset_analog_tuner(dev); - } else if ((dev->model == CX231XX_BOARD_CNXT_RDE_253S) || - (dev->model == CX231XX_BOARD_CNXT_VIDEO_GRABBER) || - (dev->model == CX231XX_BOARD_CNXT_RDU_253S) || - (dev->model == CX231XX_BOARD_HAUPPAUGE_EXETER)) { - /* tuner path to channel 1 from port 3 */ - cx231xx_enable_i2c_for_tuner(dev, I2C_3); - if (dev->cx231xx_reset_analog_tuner) - dev->cx231xx_reset_analog_tuner(dev); } break; @@ -2401,33 +2394,23 @@ int cx231xx_set_power_mode(struct cx231xx *dev, enum AV_MODE mode) msleep(PWR_SLEEP_INTERVAL); } - if ((dev->model == CX231XX_BOARD_CNXT_CARRAERA) || - (dev->model == CX231XX_BOARD_CNXT_RDE_250) || - (dev->model == CX231XX_BOARD_CNXT_SHELBY) || - (dev->model == CX231XX_BOARD_CNXT_RDU_250)) { - /* tuner path to channel 1 from port 3 */ - cx231xx_enable_i2c_for_tuner(dev, I2C_3); + if (dev->board.tuner_type != TUNER_ABSENT) { + /* + * Enable tuner + * Hauppauge Exeter seems to need to do something different! + */ + if (dev->model == CX231XX_BOARD_HAUPPAUGE_EXETER) + cx231xx_enable_i2c_port_3(dev, false); + else + cx231xx_enable_i2c_port_3(dev, true); /* reset the Tuner */ - cx231xx_gpio_set(dev, dev->board.tuner_gpio); - - if (dev->cx231xx_reset_analog_tuner) - dev->cx231xx_reset_analog_tuner(dev); - } else if ((dev->model == CX231XX_BOARD_CNXT_RDE_253S) || - (dev->model == CX231XX_BOARD_CNXT_VIDEO_GRABBER) || - (dev->model == CX231XX_BOARD_CNXT_RDU_253S)) { - /* tuner path to channel 1 from port 3 */ - cx231xx_enable_i2c_for_tuner(dev, I2C_3); - if (dev->cx231xx_reset_analog_tuner) - dev->cx231xx_reset_analog_tuner(dev); - } else if (dev->model == CX231XX_BOARD_HAUPPAUGE_EXETER) { - /* tuner path to channel 1 from port 1 ?? */ - cx231xx_enable_i2c_for_tuner(dev, I2C_1); + if (dev->board.tuner_gpio) + cx231xx_gpio_set(dev, dev->board.tuner_gpio); if (dev->cx231xx_reset_analog_tuner) dev->cx231xx_reset_analog_tuner(dev); } - break; default: diff --git a/drivers/media/video/cx231xx/cx231xx-core.c b/drivers/media/video/cx231xx/cx231xx-core.c index 983b120..4af46fc 100644 --- a/drivers/media/video/cx231xx/cx231xx-core.c +++ b/drivers/media/video/cx231xx/cx231xx-core.c @@ -1401,9 +1401,7 @@ int cx231xx_dev_init(struct cx231xx *dev) cx231xx_set_alt_setting(dev, INDEX_TS1, 0); /* set the I2C master port to 3 on channel 1 */ - if (dev->model != CX231XX_BOARD_CNXT_VIDEO_GRABBER && - dev->model != CX231XX_BOARD_HAUPPAUGE_USBLIVE2) - errCode = cx231xx_enable_i2c_for_tuner(dev, I2C_3); + errCode = cx231xx_enable_i2c_port_3(dev, true); return errCode; } diff --git a/drivers/media/video/cx231xx/cx231xx-dvb.c b/drivers/media/video/cx231xx/cx231xx-dvb.c index 4efd3d3..5feb3ee 100644 --- a/drivers/media/video/cx231xx/cx231xx-dvb.c +++ b/drivers/media/video/cx231xx/cx231xx-dvb.c @@ -235,11 +235,11 @@ static int start_streaming(struct cx231xx_dvb *dvb) if (dev->USE_ISO) { cx231xx_info("DVB transfer mode is ISO.\n"); -mutex_lock(&dev->i2c_lock); - cx231xx_enable_i2c_for_tuner(dev, I2C_1); + mutex_lock(&dev->i2c_lock); + cx231xx_enable_i2c_port_3(dev, false); cx231xx_set_alt_setting(dev, INDEX_TS1, 4); - cx231xx_enable_i2c_for_tuner(dev, I2C_3); -mutex_unlock(&dev->i2c_lock); + cx231xx_enable_i2c_port_3(dev, true); + mutex_unlock(&dev->i2c_lock); rc = cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE); if (rc < 0) return rc; diff --git a/drivers/media/video/cx231xx/cx231xx.h b/drivers/media/video/cx231xx/cx231xx.h index 5ffdd36..b4859a0 100644 --- a/drivers/media/video/cx231xx/cx231xx.h +++ b/drivers/media/video/cx231xx/cx231xx.h @@ -929,7 +929,7 @@ int cx231xx_power_suspend(struct cx231xx *dev); int cx231xx_init_ctrl_pin_status(struct cx231xx *dev); int cx231xx_set_agc_analog_digital_mux_select(struct cx231xx *dev, u8 analog_or_digital); -int cx231xx_enable_i2c_for_tuner(struct cx231xx *dev, u8 I2CIndex); +int cx231xx_enable_i2c_port_3(struct cx231xx *dev, bool is_port_3); /* video audio decoder related functions */ void video_mux(struct cx231xx *dev, int index);

[06/10] V4L/DVB: cx231xx: better handle the master port enable command

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Patch