Em Mon, 11 Mar 2013 12:45:47 +0100
Hans Verkuil <hverkuil@xxxxxxxxx> escreveu:
> From: Hans Verkuil <hans.verkuil@xxxxxxxxx>
>
> The Sony BTF PG472Z has an internal MPX to deal with mono/stereo/bilingual
> audio. This is split off from the wis-sony-tuner driver that is part of
> the go7007 driver as it should be a separate i2c sub-device driver.
>
> The wis-sony-tuner is really three i2c devices: a standard tuner, a tda9887
> compatible demodulator and this mpx. After this patch the wis-sony-tuner
> can be replaced by this driver and the standard tuner driver.
>
> Signed-off-by: Hans Verkuil <hans.verkuil@xxxxxxxxx>
> ---
> drivers/media/i2c/Kconfig | 11 +-
> drivers/media/i2c/Makefile | 1 +
> drivers/media/i2c/sony-btf-mpx.c | 399 ++++++++++++++++++++++++++++++++++++++
Not sure what happened, but sony-btf-mpx.c got missed on the version inside
the pull request.
So, I got it from this patch.
> 3 files changed, 410 insertions(+), 1 deletion(-)
> create mode 100644 drivers/media/i2c/sony-btf-mpx.c
>
> diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig
> index 7b771ba..70dbae2 100644
> --- a/drivers/media/i2c/Kconfig
> +++ b/drivers/media/i2c/Kconfig
> @@ -133,7 +133,7 @@ config VIDEO_WM8739
> module will be called wm8739.
>
> config VIDEO_VP27SMPX
> - tristate "Panasonic VP27s internal MPX"
> + tristate "Panasonic VP27's internal MPX"
> depends on VIDEO_V4L2 && I2C
> ---help---
> Support for the internal MPX of the Panasonic VP27s tuner.
> @@ -141,6 +141,15 @@ config VIDEO_VP27SMPX
> To compile this driver as a module, choose M here: the
> module will be called vp27smpx.
>
> +config VIDEO_SONY_BTF_MPX
> + tristate "Sony BTF's internal MPX"
> + depends on VIDEO_V4L2 && I2C
> + help
> + Support for the internal MPX of the Sony BTF-PG472Z tuner.
> +
> + To compile this driver as a module, choose M here: the
> + module will be called sony-btf-mpx.
> +
> comment "RDS decoders"
>
> config VIDEO_SAA6588
> diff --git a/drivers/media/i2c/Makefile b/drivers/media/i2c/Makefile
> index cfefd30..4c57075 100644
> --- a/drivers/media/i2c/Makefile
> +++ b/drivers/media/i2c/Makefile
> @@ -44,6 +44,7 @@ obj-$(CONFIG_VIDEO_TLV320AIC23B) += tlv320aic23b.o
> obj-$(CONFIG_VIDEO_WM8775) += wm8775.o
> obj-$(CONFIG_VIDEO_WM8739) += wm8739.o
> obj-$(CONFIG_VIDEO_VP27SMPX) += vp27smpx.o
> +obj-$(CONFIG_VIDEO_SONY_BTF_MPX) += sony-btf-mpx.o
> obj-$(CONFIG_VIDEO_UPD64031A) += upd64031a.o
> obj-$(CONFIG_VIDEO_UPD64083) += upd64083.o
> obj-$(CONFIG_VIDEO_OV7670) += ov7670.o
> diff --git a/drivers/media/i2c/sony-btf-mpx.c b/drivers/media/i2c/sony-btf-mpx.c
> new file mode 100644
> index 0000000..bc73e8f
> --- /dev/null
> +++ b/drivers/media/i2c/sony-btf-mpx.c
> @@ -0,0 +1,399 @@
> +/*
> + * Copyright (C) 2005-2006 Micronas USA Inc.
> + *
> + * 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., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
> + */
> +
> +#include <linux/module.h>
> +#include <linux/init.h>
> +#include <linux/i2c.h>
> +#include <linux/videodev2.h>
> +#include <media/tuner.h>
> +#include <media/v4l2-common.h>
> +#include <media/v4l2-ioctl.h>
> +#include <media/v4l2-device.h>
> +#include <linux/slab.h>
> +
> +MODULE_DESCRIPTION("sony-btf-mpx driver");
> +MODULE_LICENSE("GPL v2");
> +
> +static int debug;
> +module_param(debug, int, 0644);
> +MODULE_PARM_DESC(debug, "debug level 0=off(default) 1=on\n");
> +
> +/* #define MPX_DEBUG */
> +
> +/*
> + * Note:
> + *
> + * AS(IF/MPX) pin: LOW HIGH/OPEN
> + * IF/MPX address: 0x42/0x40 0x43/0x44
> + */
> +
> +
> +static int force_mpx_mode = -1;
> +module_param(force_mpx_mode, int, 0644);
> +
> +struct sony_btf_mpx {
> + struct v4l2_subdev sd;
> + int mpxmode;
> + u32 audmode;
> +};
> +
> +static inline struct sony_btf_mpx *to_state(struct v4l2_subdev *sd)
> +{
> + return container_of(sd, struct sony_btf_mpx, sd);
> +}
> +
> +static int mpx_write(struct i2c_client *client, int dev, int addr, int val)
> +{
> + u8 buffer[5];
> + struct i2c_msg msg;
> +
> + buffer[0] = dev;
> + buffer[1] = addr >> 8;
> + buffer[2] = addr & 0xff;
> + buffer[3] = val >> 8;
> + buffer[4] = val & 0xff;
> + msg.addr = client->addr;
> + msg.flags = 0;
> + msg.len = 5;
> + msg.buf = buffer;
> + i2c_transfer(client->adapter, &msg, 1);
> + return 0;
> +}
> +
> +/*
> + * MPX register values for the BTF-PG472Z:
> + *
> + * FM_ NICAM_ SCART_
> + * MODUS SOURCE ACB PRESCAL PRESCAL PRESCAL SYSTEM VOLUME
> + * 10/0030 12/0008 12/0013 12/000E 12/0010 12/0000 10/0020 12/0000
> + * ---------------------------------------------------------------
> + * Auto 1003 0020 0100 2603 5000 XXXX 0001 7500
> + *
> + * B/G
> + * Mono 1003 0020 0100 2603 5000 XXXX 0003 7500
> + * A2 1003 0020 0100 2601 5000 XXXX 0003 7500
> + * NICAM 1003 0120 0100 2603 5000 XXXX 0008 7500
> + *
> + * I
> + * Mono 1003 0020 0100 2603 7900 XXXX 000A 7500
> + * NICAM 1003 0120 0100 2603 7900 XXXX 000A 7500
> + *
> + * D/K
> + * Mono 1003 0020 0100 2603 5000 XXXX 0004 7500
> + * A2-1 1003 0020 0100 2601 5000 XXXX 0004 7500
> + * A2-2 1003 0020 0100 2601 5000 XXXX 0005 7500
> + * A2-3 1003 0020 0100 2601 5000 XXXX 0007 7500
> + * NICAM 1003 0120 0100 2603 5000 XXXX 000B 7500
> + *
> + * L/L'
> + * Mono 0003 0200 0100 7C03 5000 2200 0009 7500
> + * NICAM 0003 0120 0100 7C03 5000 XXXX 0009 7500
> + *
> + * M
> + * Mono 1003 0200 0100 2B03 5000 2B00 0002 7500
> + *
> + * For Asia, replace the 0x26XX in FM_PRESCALE with 0x14XX.
> + *
> + * Bilingual selection in A2/NICAM:
> + *
> + * High byte of SOURCE Left chan Right chan
> + * 0x01 MAIN SUB
> + * 0x03 MAIN MAIN
> + * 0x04 SUB SUB
> + *
> + * Force mono in NICAM by setting the high byte of SOURCE to 0x02 (L/L') or
> + * 0x00 (all other bands). Force mono in A2 with FMONO_A2:
> + *
> + * FMONO_A2
> + * 10/0022
> + * --------
> + * Forced mono ON 07F0
> + * Forced mono OFF 0190
> + */
> +
> +static const struct {
> + enum { AUD_MONO, AUD_A2, AUD_NICAM, AUD_NICAM_L } audio_mode;
> + u16 modus;
> + u16 source;
> + u16 acb;
> + u16 fm_prescale;
> + u16 nicam_prescale;
> + u16 scart_prescale;
> + u16 system;
> + u16 volume;
> +} mpx_audio_modes[] = {
> + /* Auto */ { AUD_MONO, 0x1003, 0x0020, 0x0100, 0x2603,
> + 0x5000, 0x0000, 0x0001, 0x7500 },
> + /* B/G Mono */ { AUD_MONO, 0x1003, 0x0020, 0x0100, 0x2603,
> + 0x5000, 0x0000, 0x0003, 0x7500 },
> + /* B/G A2 */ { AUD_A2, 0x1003, 0x0020, 0x0100, 0x2601,
> + 0x5000, 0x0000, 0x0003, 0x7500 },
> + /* B/G NICAM */ { AUD_NICAM, 0x1003, 0x0120, 0x0100, 0x2603,
> + 0x5000, 0x0000, 0x0008, 0x7500 },
> + /* I Mono */ { AUD_MONO, 0x1003, 0x0020, 0x0100, 0x2603,
> + 0x7900, 0x0000, 0x000A, 0x7500 },
> + /* I NICAM */ { AUD_NICAM, 0x1003, 0x0120, 0x0100, 0x2603,
> + 0x7900, 0x0000, 0x000A, 0x7500 },
> + /* D/K Mono */ { AUD_MONO, 0x1003, 0x0020, 0x0100, 0x2603,
> + 0x5000, 0x0000, 0x0004, 0x7500 },
> + /* D/K A2-1 */ { AUD_A2, 0x1003, 0x0020, 0x0100, 0x2601,
> + 0x5000, 0x0000, 0x0004, 0x7500 },
> + /* D/K A2-2 */ { AUD_A2, 0x1003, 0x0020, 0x0100, 0x2601,
> + 0x5000, 0x0000, 0x0005, 0x7500 },
> + /* D/K A2-3 */ { AUD_A2, 0x1003, 0x0020, 0x0100, 0x2601,
> + 0x5000, 0x0000, 0x0007, 0x7500 },
> + /* D/K NICAM */ { AUD_NICAM, 0x1003, 0x0120, 0x0100, 0x2603,
> + 0x5000, 0x0000, 0x000B, 0x7500 },
> + /* L/L' Mono */ { AUD_MONO, 0x0003, 0x0200, 0x0100, 0x7C03,
> + 0x5000, 0x2200, 0x0009, 0x7500 },
> + /* L/L' NICAM */{ AUD_NICAM_L, 0x0003, 0x0120, 0x0100, 0x7C03,
> + 0x5000, 0x0000, 0x0009, 0x7500 },
> +};
> +
> +#define MPX_NUM_MODES ARRAY_SIZE(mpx_audio_modes)
> +
> +static int mpx_setup(struct sony_btf_mpx *t)
> +{
> + struct i2c_client *client = v4l2_get_subdevdata(&t->sd);
> + u16 source = 0;
> + u8 buffer[3];
> + struct i2c_msg msg;
> + int mode = t->mpxmode;
> +
> + /* reset MPX */
> + buffer[0] = 0x00;
> + buffer[1] = 0x80;
> + buffer[2] = 0x00;
> + msg.addr = client->addr;
> + msg.flags = 0;
> + msg.len = 3;
> + msg.buf = buffer;
> + i2c_transfer(client->adapter, &msg, 1);
> + buffer[1] = 0x00;
> + i2c_transfer(client->adapter, &msg, 1);
> +
> + if (t->audmode != V4L2_TUNER_MODE_MONO)
> + mode++;
> +
> + if (mpx_audio_modes[mode].audio_mode != AUD_MONO) {
> + switch (t->audmode) {
> + case V4L2_TUNER_MODE_MONO:
> + switch (mpx_audio_modes[mode].audio_mode) {
> + case AUD_A2:
> + source = mpx_audio_modes[mode].source;
> + break;
> + case AUD_NICAM:
> + source = 0x0000;
> + break;
> + case AUD_NICAM_L:
> + source = 0x0200;
> + break;
> + default:
> + break;
> + }
> + break;
> + case V4L2_TUNER_MODE_STEREO:
> + source = mpx_audio_modes[mode].source;
> + break;
> + case V4L2_TUNER_MODE_LANG1:
> + source = 0x0300;
> + break;
> + case V4L2_TUNER_MODE_LANG2:
> + source = 0x0400;
> + break;
> + }
> + source |= mpx_audio_modes[mode].source & 0x00ff;
> + } else
> + source = mpx_audio_modes[mode].source;
> +
> + mpx_write(client, 0x10, 0x0030, mpx_audio_modes[mode].modus);
> + mpx_write(client, 0x12, 0x0008, source);
> + mpx_write(client, 0x12, 0x0013, mpx_audio_modes[mode].acb);
> + mpx_write(client, 0x12, 0x000e,
> + mpx_audio_modes[mode].fm_prescale);
> + mpx_write(client, 0x12, 0x0010,
> + mpx_audio_modes[mode].nicam_prescale);
> + mpx_write(client, 0x12, 0x000d,
> + mpx_audio_modes[mode].scart_prescale);
> + mpx_write(client, 0x10, 0x0020, mpx_audio_modes[mode].system);
> + mpx_write(client, 0x12, 0x0000, mpx_audio_modes[mode].volume);
> + if (mpx_audio_modes[mode].audio_mode == AUD_A2)
> + mpx_write(client, 0x10, 0x0022,
> + t->audmode == V4L2_TUNER_MODE_MONO ? 0x07f0 : 0x0190);
> +
> +#ifdef MPX_DEBUG
> + {
> + u8 buf1[3], buf2[2];
> + struct i2c_msg msgs[2];
> +
> + v4l2_info(client,
> + "MPX registers: %04x %04x %04x %04x %04x %04x %04x %04x\n",
> + mpx_audio_modes[mode].modus,
> + source,
> + mpx_audio_modes[mode].acb,
> + mpx_audio_modes[mode].fm_prescale,
> + mpx_audio_modes[mode].nicam_prescale,
> + mpx_audio_modes[mode].scart_prescale,
> + mpx_audio_modes[mode].system,
> + mpx_audio_modes[mode].volume);
> + buf1[0] = 0x11;
> + buf1[1] = 0x00;
> + buf1[2] = 0x7e;
> + msgs[0].addr = client->addr;
> + msgs[0].flags = 0;
> + msgs[0].len = 3;
> + msgs[0].buf = buf1;
> + msgs[1].addr = client->addr;
> + msgs[1].flags = I2C_M_RD;
> + msgs[1].len = 2;
> + msgs[1].buf = buf2;
> + i2c_transfer(client->adapter, msgs, 2);
> + v4l2_info(client, "MPX system: %02x%02x\n",
> + buf2[0], buf2[1]);
> + buf1[0] = 0x11;
> + buf1[1] = 0x02;
> + buf1[2] = 0x00;
> + i2c_transfer(client->adapter, msgs, 2);
> + v4l2_info(client, "MPX status: %02x%02x\n",
> + buf2[0], buf2[1]);
> + }
> +#endif
> + return 0;
> +}
> +
> +
> +static int sony_btf_mpx_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
> +{
> + struct sony_btf_mpx *t = to_state(sd);
> + int default_mpx_mode = 0;
> +
> + if (std & V4L2_STD_PAL_BG)
> + default_mpx_mode = 1;
> + else if (std & V4L2_STD_PAL_I)
> + default_mpx_mode = 4;
> + else if (std & V4L2_STD_PAL_DK)
> + default_mpx_mode = 6;
> + else if (std & V4L2_STD_SECAM_L)
> + default_mpx_mode = 11;
> +
> + if (default_mpx_mode != t->mpxmode) {
> + t->mpxmode = default_mpx_mode;
> + mpx_setup(t);
> + }
> + return 0;
> +}
> +
> +static int sony_btf_mpx_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
> +{
> + struct sony_btf_mpx *t = to_state(sd);
> +
> + vt->capability = V4L2_TUNER_CAP_NORM |
> + V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LANG1 |
> + V4L2_TUNER_CAP_LANG2;
> + vt->rxsubchans = V4L2_TUNER_SUB_MONO |
> + V4L2_TUNER_SUB_STEREO | V4L2_TUNER_SUB_LANG1 |
> + V4L2_TUNER_SUB_LANG2;
> + vt->audmode = t->audmode;
> + return 0;
> +}
> +
> +static int sony_btf_mpx_s_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
> +{
> + struct sony_btf_mpx *t = to_state(sd);
> +
> + if (vt->type != V4L2_TUNER_ANALOG_TV)
> + return -EINVAL;
> +
> + if (vt->audmode != t->audmode) {
> + t->audmode = vt->audmode;
> + mpx_setup(t);
> + }
> + return 0;
> +}
> +
> +/* --------------------------------------------------------------------------*/
> +
> +static const struct v4l2_subdev_core_ops sony_btf_mpx_core_ops = {
> + .s_std = sony_btf_mpx_s_std,
> +};
> +
> +static const struct v4l2_subdev_tuner_ops sony_btf_mpx_tuner_ops = {
> + .s_tuner = sony_btf_mpx_s_tuner,
> + .g_tuner = sony_btf_mpx_g_tuner,
> +};
> +
> +static const struct v4l2_subdev_ops sony_btf_mpx_ops = {
> + .core = &sony_btf_mpx_core_ops,
> + .tuner = &sony_btf_mpx_tuner_ops,
> +};
> +
> +/* --------------------------------------------------------------------------*/
> +
> +static int sony_btf_mpx_probe(struct i2c_client *client,
> + const struct i2c_device_id *id)
> +{
> + struct sony_btf_mpx *t;
> + struct v4l2_subdev *sd;
> +
> + if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_I2C_BLOCK))
> + return -ENODEV;
> +
> + v4l_info(client, "chip found @ 0x%x (%s)\n",
> + client->addr << 1, client->adapter->name);
> +
> + t = kzalloc(sizeof(struct sony_btf_mpx), GFP_KERNEL);
> + if (t == NULL)
> + return -ENOMEM;
> +
> + sd = &t->sd;
> + v4l2_i2c_subdev_init(sd, client, &sony_btf_mpx_ops);
> +
> + /* Initialize sony_btf_mpx */
> + t->mpxmode = 0;
> + t->audmode = V4L2_TUNER_MODE_STEREO;
> +
> + return 0;
> +}
> +
> +static int sony_btf_mpx_remove(struct i2c_client *client)
> +{
> + struct v4l2_subdev *sd = i2c_get_clientdata(client);
> +
> + v4l2_device_unregister_subdev(sd);
> + kfree(to_state(sd));
> +
> + return 0;
> +}
> +
> +/* ----------------------------------------------------------------------- */
> +
> +static const struct i2c_device_id sony_btf_mpx_id[] = {
> + { "sony-btf-mpx", 0 },
> + { }
> +};
> +MODULE_DEVICE_TABLE(i2c, sony_btf_mpx_id);
> +
> +static struct i2c_driver sony_btf_mpx_driver = {
> + .driver = {
> + .owner = THIS_MODULE,
> + .name = "sony-btf-mpx",
> + },
> + .probe = sony_btf_mpx_probe,
> + .remove = sony_btf_mpx_remove,
> + .id_table = sony_btf_mpx_id,
> +};
> +module_i2c_driver(sony_btf_mpx_driver);
--
Cheers,
Mauro
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