diff options
Diffstat (limited to 'drivers/media/radio')
| -rw-r--r-- | drivers/media/radio/Kconfig | 23 | ||||
| -rw-r--r-- | drivers/media/radio/Makefile | 2 | ||||
| -rw-r--r-- | drivers/media/radio/radio-timb.c | 244 | ||||
| -rw-r--r-- | drivers/media/radio/saa7706h.c | 451 | ||||
| -rw-r--r-- | drivers/media/radio/si470x/radio-si470x-common.c | 2 | ||||
| -rw-r--r-- | drivers/media/radio/si470x/radio-si470x-usb.c | 8 |
6 files changed, 726 insertions, 4 deletions
diff --git a/drivers/media/radio/Kconfig b/drivers/media/radio/Kconfig index 3f40f375981b..83567b898d09 100644 --- a/drivers/media/radio/Kconfig +++ b/drivers/media/radio/Kconfig @@ -417,6 +417,18 @@ config RADIO_TEA5764_XTAL Say Y here if TEA5764 have a 32768 Hz crystal in circuit, say N here if TEA5764 reference frequency is connected in FREQIN. +config RADIO_SAA7706H + tristate "SAA7706H Car Radio DSP" + depends on I2C && VIDEO_V4L2 + ---help--- + Say Y here if you want to use the SAA7706H Car radio Digital + Signal Processor, found for instance on the Russellville development + board. On the russellville the device is connected to internal + timberdale I2C bus. + + To compile this driver as a module, choose M here: the + module will be called SAA7706H. + config RADIO_TEF6862 tristate "TEF6862 Car Radio Enhanced Selectivity Tuner" depends on I2C && VIDEO_V4L2 @@ -429,4 +441,15 @@ config RADIO_TEF6862 To compile this driver as a module, choose M here: the module will be called TEF6862. +config RADIO_TIMBERDALE + tristate "Enable the Timberdale radio driver" + depends on MFD_TIMBERDALE && VIDEO_V4L2 + depends on I2C # for RADIO_SAA7706H + select RADIO_TEF6862 + select RADIO_SAA7706H + ---help--- + This is a kind of umbrella driver for the Radio Tuner and DSP + found behind the Timberdale FPGA on the Russellville board. + Enabling this driver will automatically select the DSP and tuner. + endif # RADIO_ADAPTERS diff --git a/drivers/media/radio/Makefile b/drivers/media/radio/Makefile index 01922ada6914..f615583b4837 100644 --- a/drivers/media/radio/Makefile +++ b/drivers/media/radio/Makefile @@ -23,6 +23,8 @@ obj-$(CONFIG_USB_DSBR) += dsbr100.o obj-$(CONFIG_RADIO_SI470X) += si470x/ obj-$(CONFIG_USB_MR800) += radio-mr800.o obj-$(CONFIG_RADIO_TEA5764) += radio-tea5764.o +obj-$(CONFIG_RADIO_SAA7706H) += saa7706h.o obj-$(CONFIG_RADIO_TEF6862) += tef6862.o +obj-$(CONFIG_RADIO_TIMBERDALE) += radio-timb.o EXTRA_CFLAGS += -Isound diff --git a/drivers/media/radio/radio-timb.c b/drivers/media/radio/radio-timb.c new file mode 100644 index 000000000000..0de457f6e6eb --- /dev/null +++ b/drivers/media/radio/radio-timb.c @@ -0,0 +1,244 @@ +/* + * radio-timb.c Timberdale FPGA Radio driver + * Copyright (c) 2009 Intel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <linux/version.h> +#include <linux/io.h> +#include <media/v4l2-ioctl.h> +#include <media/v4l2-device.h> +#include <linux/platform_device.h> +#include <linux/interrupt.h> +#include <linux/i2c.h> +#include <media/timb_radio.h> + +#define DRIVER_NAME "timb-radio" + +struct timbradio { + struct timb_radio_platform_data pdata; + struct v4l2_subdev *sd_tuner; + struct v4l2_subdev *sd_dsp; + struct video_device video_dev; + struct v4l2_device v4l2_dev; +}; + + +static int timbradio_vidioc_querycap(struct file *file, void *priv, + struct v4l2_capability *v) +{ + strlcpy(v->driver, DRIVER_NAME, sizeof(v->driver)); + strlcpy(v->card, "Timberdale Radio", sizeof(v->card)); + snprintf(v->bus_info, sizeof(v->bus_info), "platform:"DRIVER_NAME); + v->version = KERNEL_VERSION(0, 0, 1); + v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO; + return 0; +} + +static int timbradio_vidioc_g_tuner(struct file *file, void *priv, + struct v4l2_tuner *v) +{ + struct timbradio *tr = video_drvdata(file); + return v4l2_subdev_call(tr->sd_tuner, tuner, g_tuner, v); +} + +static int timbradio_vidioc_s_tuner(struct file *file, void *priv, + struct v4l2_tuner *v) +{ + struct timbradio *tr = video_drvdata(file); + return v4l2_subdev_call(tr->sd_tuner, tuner, s_tuner, v); +} + +static int timbradio_vidioc_g_input(struct file *filp, void *priv, + unsigned int *i) +{ + *i = 0; + return 0; +} + +static int timbradio_vidioc_s_input(struct file *filp, void *priv, + unsigned int i) +{ + return i ? -EINVAL : 0; +} + +static int timbradio_vidioc_g_audio(struct file *file, void *priv, + struct v4l2_audio *a) +{ + a->index = 0; + strlcpy(a->name, "Radio", sizeof(a->name)); + a->capability = V4L2_AUDCAP_STEREO; + return 0; +} + +static int timbradio_vidioc_s_audio(struct file *file, void *priv, + struct v4l2_audio *a) +{ + return a->index ? -EINVAL : 0; +} + +static int timbradio_vidioc_s_frequency(struct file *file, void *priv, + struct v4l2_frequency *f) +{ + struct timbradio *tr = video_drvdata(file); + return v4l2_subdev_call(tr->sd_tuner, tuner, s_frequency, f); +} + +static int timbradio_vidioc_g_frequency(struct file *file, void *priv, + struct v4l2_frequency *f) +{ + struct timbradio *tr = video_drvdata(file); + return v4l2_subdev_call(tr->sd_tuner, tuner, g_frequency, f); +} + +static int timbradio_vidioc_queryctrl(struct file *file, void *priv, + struct v4l2_queryctrl *qc) +{ + struct timbradio *tr = video_drvdata(file); + return v4l2_subdev_call(tr->sd_dsp, core, queryctrl, qc); +} + +static int timbradio_vidioc_g_ctrl(struct file *file, void *priv, + struct v4l2_control *ctrl) +{ + struct timbradio *tr = video_drvdata(file); + return v4l2_subdev_call(tr->sd_dsp, core, g_ctrl, ctrl); +} + +static int timbradio_vidioc_s_ctrl(struct file *file, void *priv, + struct v4l2_control *ctrl) +{ + struct timbradio *tr = video_drvdata(file); + return v4l2_subdev_call(tr->sd_dsp, core, s_ctrl, ctrl); +} + +static const struct v4l2_ioctl_ops timbradio_ioctl_ops = { + .vidioc_querycap = timbradio_vidioc_querycap, + .vidioc_g_tuner = timbradio_vidioc_g_tuner, + .vidioc_s_tuner = timbradio_vidioc_s_tuner, + .vidioc_g_frequency = timbradio_vidioc_g_frequency, + .vidioc_s_frequency = timbradio_vidioc_s_frequency, + .vidioc_g_input = timbradio_vidioc_g_input, + .vidioc_s_input = timbradio_vidioc_s_input, + .vidioc_g_audio = timbradio_vidioc_g_audio, + .vidioc_s_audio = timbradio_vidioc_s_audio, + .vidioc_queryctrl = timbradio_vidioc_queryctrl, + .vidioc_g_ctrl = timbradio_vidioc_g_ctrl, + .vidioc_s_ctrl = timbradio_vidioc_s_ctrl +}; + +static const struct v4l2_file_operations timbradio_fops = { + .owner = THIS_MODULE, + .ioctl = video_ioctl2, +}; + +static int __devinit timbradio_probe(struct platform_device *pdev) +{ + struct timb_radio_platform_data *pdata = pdev->dev.platform_data; + struct timbradio *tr; + int err; + + if (!pdata) { + dev_err(&pdev->dev, "Platform data missing\n"); + err = -EINVAL; + goto err; + } + + tr = kzalloc(sizeof(*tr), GFP_KERNEL); + if (!tr) { + err = -ENOMEM; + goto err; + } + + tr->pdata = *pdata; + + strlcpy(tr->video_dev.name, "Timberdale Radio", + sizeof(tr->video_dev.name)); + tr->video_dev.fops = &timbradio_fops; + tr->video_dev.ioctl_ops = &timbradio_ioctl_ops; + tr->video_dev.release = video_device_release_empty; + tr->video_dev.minor = -1; + + strlcpy(tr->v4l2_dev.name, DRIVER_NAME, sizeof(tr->v4l2_dev.name)); + err = v4l2_device_register(NULL, &tr->v4l2_dev); + if (err) + goto err_v4l2_dev; + + tr->video_dev.v4l2_dev = &tr->v4l2_dev; + + err = video_register_device(&tr->video_dev, VFL_TYPE_RADIO, -1); + if (err) { + dev_err(&pdev->dev, "Error reg video\n"); + goto err_video_req; + } + + video_set_drvdata(&tr->video_dev, tr); + + platform_set_drvdata(pdev, tr); + return 0; + +err_video_req: + video_device_release_empty(&tr->video_dev); + v4l2_device_unregister(&tr->v4l2_dev); +err_v4l2_dev: + kfree(tr); +err: + dev_err(&pdev->dev, "Failed to register: %d\n", err); + + return err; +} + +static int __devexit timbradio_remove(struct platform_device *pdev) +{ + struct timbradio *tr = platform_get_drvdata(pdev); + + video_unregister_device(&tr->video_dev); + video_device_release_empty(&tr->video_dev); + + v4l2_device_unregister(&tr->v4l2_dev); + + kfree(tr); + + return 0; +} + +static struct platform_driver timbradio_platform_driver = { + .driver = { + .name = DRIVER_NAME, + .owner = THIS_MODULE, + }, + .probe = timbradio_probe, + .remove = timbradio_remove, +}; + +/*--------------------------------------------------------------------------*/ + +static int __init timbradio_init(void) +{ + return platform_driver_register(&timbradio_platform_driver); +} + +static void __exit timbradio_exit(void) +{ + platform_driver_unregister(&timbradio_platform_driver); +} + +module_init(timbradio_init); +module_exit(timbradio_exit); + +MODULE_DESCRIPTION("Timberdale Radio driver"); +MODULE_AUTHOR("Mocean Laboratories <info@mocean-labs.com>"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:"DRIVER_NAME); diff --git a/drivers/media/radio/saa7706h.c b/drivers/media/radio/saa7706h.c new file mode 100644 index 000000000000..5db5528a8b25 --- /dev/null +++ b/drivers/media/radio/saa7706h.c @@ -0,0 +1,451 @@ +/* + * saa7706.c Philips SAA7706H Car Radio DSP driver + * Copyright (c) 2009 Intel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/errno.h> +#include <linux/kernel.h> +#include <linux/interrupt.h> +#include <linux/i2c.h> +#include <media/v4l2-device.h> +#include <media/v4l2-chip-ident.h> + +#define DRIVER_NAME "saa7706h" + +/* the I2C memory map looks like this + + $1C00 - $FFFF Not Used + $2200 - $3FFF Reserved YRAM (DSP2) space + $2000 - $21FF YRAM (DSP2) + $1FF0 - $1FFF Hardware Registers + $1280 - $1FEF Reserved XRAM (DSP2) space + $1000 - $127F XRAM (DSP2) + $0FFF DSP CONTROL + $0A00 - $0FFE Reserved + $0980 - $09FF Reserved YRAM (DSP1) space + $0800 - $097F YRAM (DSP1) + $0200 - $07FF Not Used + $0180 - $01FF Reserved XRAM (DSP1) space + $0000 - $017F XRAM (DSP1) +*/ + +#define SAA7706H_REG_CTRL 0x0fff +#define SAA7706H_CTRL_BYP_PLL 0x0001 +#define SAA7706H_CTRL_PLL_DIV_MASK 0x003e +#define SAA7706H_CTRL_PLL3_62975MHZ 0x003e +#define SAA7706H_CTRL_DSP_TURBO 0x0040 +#define SAA7706H_CTRL_PC_RESET_DSP1 0x0080 +#define SAA7706H_CTRL_PC_RESET_DSP2 0x0100 +#define SAA7706H_CTRL_DSP1_ROM_EN_MASK 0x0600 +#define SAA7706H_CTRL_DSP1_FUNC_PROM 0x0000 +#define SAA7706H_CTRL_DSP2_ROM_EN_MASK 0x1800 +#define SAA7706H_CTRL_DSP2_FUNC_PROM 0x0000 +#define SAA7706H_CTRL_DIG_SIL_INTERPOL 0x8000 + +#define SAA7706H_REG_EVALUATION 0x1ff0 +#define SAA7706H_EVAL_DISABLE_CHARGE_PUMP 0x000001 +#define SAA7706H_EVAL_DCS_CLOCK 0x000002 +#define SAA7706H_EVAL_GNDRC1_ENABLE 0x000004 +#define SAA7706H_EVAL_GNDRC2_ENABLE 0x000008 + +#define SAA7706H_REG_CL_GEN1 0x1ff3 +#define SAA7706H_CL_GEN1_MIN_LOOPGAIN_MASK 0x00000f +#define SAA7706H_CL_GEN1_LOOPGAIN_MASK 0x0000f0 +#define SAA7706H_CL_GEN1_COARSE_RATION 0xffff00 + +#define SAA7706H_REG_CL_GEN2 0x1ff4 +#define SAA7706H_CL_GEN2_WSEDGE_FALLING 0x000001 +#define SAA7706H_CL_GEN2_STOP_VCO 0x000002 +#define SAA7706H_CL_GEN2_FRERUN 0x000004 +#define SAA7706H_CL_GEN2_ADAPTIVE 0x000008 +#define SAA7706H_CL_GEN2_FINE_RATIO_MASK 0x0ffff0 + +#define SAA7706H_REG_CL_GEN4 0x1ff6 +#define SAA7706H_CL_GEN4_BYPASS_PLL1 0x001000 +#define SAA7706H_CL_GEN4_PLL1_DIV_MASK 0x03e000 +#define SAA7706H_CL_GEN4_DSP1_TURBO 0x040000 + +#define SAA7706H_REG_SEL 0x1ff7 +#define SAA7706H_SEL_DSP2_SRCA_MASK 0x000007 +#define SAA7706H_SEL_DSP2_FMTA_MASK 0x000031 +#define SAA7706H_SEL_DSP2_SRCB_MASK 0x0001c0 +#define SAA7706H_SEL_DSP2_FMTB_MASK 0x000e00 +#define SAA7706H_SEL_DSP1_SRC_MASK 0x003000 +#define SAA7706H_SEL_DSP1_FMT_MASK 0x01c003 +#define SAA7706H_SEL_SPDIF2 0x020000 +#define SAA7706H_SEL_HOST_IO_FMT_MASK 0x1c0000 +#define SAA7706H_SEL_EN_HOST_IO 0x200000 + +#define SAA7706H_REG_IAC 0x1ff8 +#define SAA7706H_REG_CLK_SET 0x1ff9 +#define SAA7706H_REG_CLK_COEFF 0x1ffa +#define SAA7706H_REG_INPUT_SENS 0x1ffb +#define SAA7706H_INPUT_SENS_RDS_VOL_MASK 0x0003f +#define SAA7706H_INPUT_SENS_FM_VOL_MASK 0x00fc0 +#define SAA7706H_INPUT_SENS_FM_MPX 0x01000 +#define SAA7706H_INPUT_SENS_OFF_FILTER_A_EN 0x02000 +#define SAA7706H_INPUT_SENS_OFF_FILTER_B_EN 0x04000 +#define SAA7706H_REG_PHONE_NAV_AUDIO 0x1ffc +#define SAA7706H_REG_IO_CONF_DSP2 0x1ffd +#define SAA7706H_REG_STATUS_DSP2 0x1ffe +#define SAA7706H_REG_PC_DSP2 0x1fff + +#define SAA7706H_DSP1_MOD0 0x0800 +#define SAA7706H_DSP1_ROM_VER 0x097f +#define SAA7706H_DSP2_MPTR0 0x1000 + +#define SAA7706H_DSP1_MODPNTR 0x0000 + +#define SAA7706H_DSP2_XMEM_CONTLLCW 0x113e +#define SAA7706H_DSP2_XMEM_BUSAMP 0x114a +#define SAA7706H_DSP2_XMEM_FDACPNTR 0x11f9 +#define SAA7706H_DSP2_XMEM_IIS1PNTR 0x11fb + +#define SAA7706H_DSP2_YMEM_PVGA 0x212a +#define SAA7706H_DSP2_YMEM_PVAT1 0x212b +#define SAA7706H_DSP2_YMEM_PVAT 0x212c +#define SAA7706H_DSP2_YMEM_ROM_VER 0x21ff + +#define SUPPORTED_DSP1_ROM_VER 0x667 + +struct saa7706h_state { + struct v4l2_subdev sd; + unsigned muted; +}; + +static inline struct saa7706h_state *to_state(struct v4l2_subdev *sd) +{ + return container_of(sd, struct saa7706h_state, sd); +} + +static int saa7706h_i2c_send(struct i2c_client *client, const u8 *data, int len) +{ + int err = i2c_master_send(client, data, len); + if (err == len) + return 0; + return err > 0 ? -EIO : err; +} + +static int saa7706h_i2c_transfer(struct i2c_client *client, + struct i2c_msg *msgs, int num) +{ + int err = i2c_transfer(client->adapter, msgs, num); + if (err == num) + return 0; + return err > 0 ? -EIO : err; +} + +static int saa7706h_set_reg24(struct v4l2_subdev *sd, u16 reg, u32 val) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + u8 buf[5]; + int pos = 0; + + buf[pos++] = reg >> 8; + buf[pos++] = reg; + buf[pos++] = val >> 16; + buf[pos++] = val >> 8; + buf[pos++] = val; + + return saa7706h_i2c_send(client, buf, pos); +} + +static int saa7706h_set_reg24_err(struct v4l2_subdev *sd, u16 reg, u32 val, + int *err) +{ + return *err ? *err : saa7706h_set_reg24(sd, reg, val); +} + +static int saa7706h_set_reg16(struct v4l2_subdev *sd, u16 reg, u16 val) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + u8 buf[4]; + int pos = 0; + + buf[pos++] = reg >> 8; + buf[pos++] = reg; + buf[pos++] = val >> 8; + buf[pos++] = val; + + return saa7706h_i2c_send(client, buf, pos); +} + +static int saa7706h_set_reg16_err(struct v4l2_subdev *sd, u16 reg, u16 val, + int *err) +{ + return *err ? *err : saa7706h_set_reg16(sd, reg, val); +} + +static int saa7706h_get_reg16(struct v4l2_subdev *sd, u16 reg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + u8 buf[2]; + int err; + u8 regaddr[] = {reg >> 8, reg}; + struct i2c_msg msg[] = { {client->addr, 0, sizeof(regaddr), regaddr}, + {client->addr, I2C_M_RD, sizeof(buf), buf} }; + + err = saa7706h_i2c_transfer(client, msg, ARRAY_SIZE(msg)); + if (err) + return err; + + return buf[0] << 8 | buf[1]; +} + +static int saa7706h_unmute(struct v4l2_subdev *sd) +{ + struct saa7706h_state *state = to_state(sd); + int err = 0; + + err = saa7706h_set_reg16_err(sd, SAA7706H_REG_CTRL, + SAA7706H_CTRL_PLL3_62975MHZ | SAA7706H_CTRL_PC_RESET_DSP1 | + SAA7706H_CTRL_PC_RESET_DSP2, &err); + + /* newer versions of the chip requires a small sleep after reset */ + msleep(1); + + err = saa7706h_set_reg16_err(sd, SAA7706H_REG_CTRL, + SAA7706H_CTRL_PLL3_62975MHZ, &err); + + err = saa7706h_set_reg24_err(sd, SAA7706H_REG_EVALUATION, 0, &err); + + err = saa7706h_set_reg24_err(sd, SAA7706H_REG_CL_GEN1, 0x040022, &err); + + err = saa7706h_set_reg24_err(sd, SAA7706H_REG_CL_GEN2, + SAA7706H_CL_GEN2_WSEDGE_FALLING, &err); + + err = saa7706h_set_reg24_err(sd, SAA7706H_REG_CL_GEN4, 0x024080, &err); + + err = saa7706h_set_reg24_err(sd, SAA7706H_REG_SEL, 0x200080, &err); + + err = saa7706h_set_reg24_err(sd, SAA7706H_REG_IAC, 0xf4caed, &err); + + err = saa7706h_set_reg24_err(sd, SAA7706H_REG_CLK_SET, 0x124334, &err); + + err = saa7706h_set_reg24_err(sd, SAA7706H_REG_CLK_COEFF, 0x004a1a, + &err); + + err = saa7706h_set_reg24_err(sd, SAA7706H_REG_INPUT_SENS, 0x0071c7, + &err); + + err = saa7706h_set_reg24_err(sd, SAA7706H_REG_PHONE_NAV_AUDIO, + 0x0e22ff, &err); + + err = saa7706h_set_reg24_err(sd, SAA7706H_REG_IO_CONF_DSP2, 0x001ff8, + &err); + + err = saa7706h_set_reg24_err(sd, SAA7706H_REG_STATUS_DSP2, 0x080003, + &err); + + err = saa7706h_set_reg24_err(sd, SAA7706H_REG_PC_DSP2, 0x000004, &err); + + err = saa7706h_set_reg16_err(sd, SAA7706H_DSP1_MOD0, 0x0c6c, &err); + + err = saa7706h_set_reg24_err(sd, SAA7706H_DSP2_MPTR0, 0x000b4b, &err); + + err = saa7706h_set_reg24_err(sd, SAA7706H_DSP1_MODPNTR, 0x000600, &err); + + err = saa7706h_set_reg24_err(sd, SAA7706H_DSP1_MODPNTR, 0x0000c0, &err); + + err = saa7706h_set_reg24_err(sd, SAA7706H_DSP2_XMEM_CONTLLCW, 0x000819, + &err); + + err = saa7706h_set_reg24_err(sd, SAA7706H_DSP2_XMEM_CONTLLCW, 0x00085a, + &err); + + err = saa7706h_set_reg24_err(sd, SAA7706H_DSP2_XMEM_BUSAMP, 0x7fffff, + &err); + + err = saa7706h_set_reg24_err(sd, SAA7706H_DSP2_XMEM_FDACPNTR, 0x2000cb, + &err); + + err = saa7706h_set_reg24_err(sd, SAA7706H_DSP2_XMEM_IIS1PNTR, 0x2000cb, + &err); + + err = saa7706h_set_reg16_err(sd, SAA7706H_DSP2_YMEM_PVGA, 0x0f80, &err); + + err = saa7706h_set_reg16_err(sd, SAA7706H_DSP2_YMEM_PVAT1, 0x0800, + &err); + + err = saa7706h_set_reg16_err(sd, SAA7706H_DSP2_YMEM_PVAT, 0x0800, &err); + + err = saa7706h_set_reg24_err(sd, SAA7706H_DSP2_XMEM_CONTLLCW, 0x000905, + &err); + if (!err) + state->muted = 0; + return err; +} + +static int saa7706h_mute(struct v4l2_subdev *sd) +{ + struct saa7706h_state *state = to_state(sd); + int err; + + err = saa7706h_set_reg16(sd, SAA7706H_REG_CTRL, + SAA7706H_CTRL_PLL3_62975MHZ | SAA7706H_CTRL_PC_RESET_DSP1 | + SAA7706H_CTRL_PC_RESET_DSP2); + if (!err) + state->muted = 1; + return err; +} + +static int saa7706h_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc) +{ + switch (qc->id) { + case V4L2_CID_AUDIO_MUTE: + return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1); + } + return -EINVAL; +} + +static int saa7706h_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) +{ + struct saa7706h_state *state = to_state(sd); + + switch (ctrl->id) { + case V4L2_CID_AUDIO_MUTE: + ctrl->value = state->muted; + return 0; + } + return -EINVAL; +} + +static int saa7706h_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) +{ + switch (ctrl->id) { + case V4L2_CID_AUDIO_MUTE: + if (ctrl->value) + return saa7706h_mute(sd); + return saa7706h_unmute(sd); + } + return -EINVAL; +} + +static int saa7706h_g_chip_ident(struct v4l2_subdev *sd, + struct v4l2_dbg_chip_ident *chip) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + + return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_SAA7706H, 0); +} + +static const struct v4l2_subdev_core_ops saa7706h_core_ops = { + .g_chip_ident = saa7706h_g_chip_ident, + .queryctrl = saa7706h_queryctrl, + .g_ctrl = saa7706h_g_ctrl, + .s_ctrl = saa7706h_s_ctrl, +}; + +static const struct v4l2_subdev_ops saa7706h_ops = { + .core = &saa7706h_core_ops, +}; + +/* + * Generic i2c probe + * concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1' + */ + +static int __devinit saa7706h_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct saa7706h_state *state; + struct v4l2_subdev *sd; + int err; + + /* Check if the adapter supports the needed features */ + if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) + return -EIO; + + v4l_info(client, "chip found @ 0x%02x (%s)\n", + client->addr << 1, client->adapter->name); + + state = kmalloc(sizeof(struct saa7706h_state), GFP_KERNEL); + if (state == NULL) + return -ENOMEM; + sd = &state->sd; + v4l2_i2c_subdev_init(sd, client, &saa7706h_ops); + + /* check the rom versions */ + err = saa7706h_get_reg16(sd, SAA7706H_DSP1_ROM_VER); + if (err < 0) + goto err; + if (err != SUPPORTED_DSP1_ROM_VER) + v4l2_warn(sd, "Unknown DSP1 ROM code version: 0x%x\n", err); + + state->muted = 1; + + /* startup in a muted state */ + err = saa7706h_mute(sd); + if (err) + goto err; + + return 0; + +err: + v4l2_device_unregister_subdev(sd); + kfree(to_state(sd)); + + printk(KERN_ERR DRIVER_NAME ": Failed to probe: %d\n", err); + + return err; +} + +static int __devexit saa7706h_remove(struct i2c_client *client) +{ + struct v4l2_subdev *sd = i2c_get_clientdata(client); + + saa7706h_mute(sd); + v4l2_device_unregister_subdev(sd); + kfree(to_state(sd)); + return 0; +} + +static const struct i2c_device_id saa7706h_id[] = { + {DRIVER_NAME, 0}, + {}, +}; + +MODULE_DEVICE_TABLE(i2c, saa7706h_id); + +static struct i2c_driver saa7706h_driver = { + .driver = { + .owner = THIS_MODULE, + .name = DRIVER_NAME, + }, + .probe = saa7706h_probe, + .remove = saa7706h_remove, + .id_table = saa7706h_id, +}; + +static __init int saa7706h_init(void) +{ + return i2c_add_driver(&saa7706h_driver); +} + +static __exit void saa7706h_exit(void) +{ + i2c_del_driver(&saa7706h_driver); +} + +module_init(saa7706h_init); +module_exit(saa7706h_exit); + +MODULE_DESCRIPTION("SAA7706H Car Radio DSP driver"); +MODULE_AUTHOR("Mocean Laboratories"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/media/radio/si470x/radio-si470x-common.c b/drivers/media/radio/si470x/radio-si470x-common.c index 4da0f150c6e2..47075fc71f11 100644 --- a/drivers/media/radio/si470x/radio-si470x-common.c +++ b/drivers/media/radio/si470x/radio-si470x-common.c @@ -724,7 +724,7 @@ static int si470x_vidioc_g_tuner(struct file *file, void *priv, tuner->audmode = V4L2_TUNER_MODE_MONO; /* min is worst, max is best; signal:0..0xffff; rssi: 0..0xff */ - /* measured in units of db쨉V in 1 db increments (max at ~75 db쨉V) */ + /* measured in units of dbµV in 1 db increments (max at ~75 dbµV) */ tuner->signal = (radio->registers[STATUSRSSI] & STATUSRSSI_RSSI); /* the ideal factor is 0xffff/75 = 873,8 */ tuner->signal = (tuner->signal * 873) + (8 * tuner->signal / 10); diff --git a/drivers/media/radio/si470x/radio-si470x-usb.c b/drivers/media/radio/si470x/radio-si470x-usb.c index a96e1b9dd646..6f60841828da 100644 --- a/drivers/media/radio/si470x/radio-si470x-usb.c +++ b/drivers/media/radio/si470x/radio-si470x-usb.c @@ -590,8 +590,9 @@ int si470x_fops_release(struct file *file) video_unregister_device(radio->videodev); kfree(radio->int_in_buffer); kfree(radio->buffer); + mutex_unlock(&radio->disconnect_lock); kfree(radio); - goto unlock; + goto done; } /* cancel read processes */ @@ -601,7 +602,6 @@ int si470x_fops_release(struct file *file) retval = si470x_stop(radio); usb_autopm_put_interface(radio->intf); } -unlock: mutex_unlock(&radio->disconnect_lock); done: return retval; @@ -842,9 +842,11 @@ static void si470x_usb_driver_disconnect(struct usb_interface *intf) kfree(radio->int_in_buffer); video_unregister_device(radio->videodev); kfree(radio->buffer); + mutex_unlock(&radio->disconnect_lock); kfree(radio); + } else { + mutex_unlock(&radio->disconnect_lock); } - mutex_unlock(&radio->disconnect_lock); } |
