diff options
| -rw-r--r-- | drivers/media/video/saa7191.c | 240 | ||||
| -rw-r--r-- | include/media/v4l2-chip-ident.h | 3 |
2 files changed, 129 insertions, 114 deletions
diff --git a/drivers/media/video/saa7191.c b/drivers/media/video/saa7191.c index 4c7bddf..40ae278 100644 --- a/drivers/media/video/saa7191.c +++ b/drivers/media/video/saa7191.c @@ -21,7 +21,8 @@ #include <linux/videodev2.h> #include <linux/i2c.h> -#include <media/v4l2-common.h> +#include <media/v4l2-device.h> +#include <media/v4l2-chip-ident.h> #include <media/v4l2-i2c-drv-legacy.h> #include "saa7191.h" @@ -49,7 +50,7 @@ I2C_CLIENT_INSMOD; #define SAA7191_SYNC_DELAY 100 /* milliseconds */ struct saa7191 { - struct i2c_client *client; + struct v4l2_subdev sd; /* the register values are stored here as the actual * I2C-registers are write-only */ @@ -59,6 +60,11 @@ struct saa7191 { v4l2_std_id norm; }; +static inline struct saa7191 *to_saa7191(struct v4l2_subdev *sd) +{ + return container_of(sd, struct saa7191, sd); +} + static const u8 initseq[] = { 0, /* Subaddress */ @@ -103,15 +109,14 @@ static const u8 initseq[] = { /* SAA7191 register handling */ -static u8 saa7191_read_reg(struct i2c_client *client, - u8 reg) +static u8 saa7191_read_reg(struct v4l2_subdev *sd, u8 reg) { - return ((struct saa7191 *)i2c_get_clientdata(client))->reg[reg]; + return to_saa7191(sd)->reg[reg]; } -static int saa7191_read_status(struct i2c_client *client, - u8 *value) +static int saa7191_read_status(struct v4l2_subdev *sd, u8 *value) { + struct i2c_client *client = v4l2_get_subdevdata(sd); int ret; ret = i2c_master_recv(client, value, 1); @@ -124,21 +129,23 @@ static int saa7191_read_status(struct i2c_client *client, } -static int saa7191_write_reg(struct i2c_client *client, u8 reg, - u8 value) +static int saa7191_write_reg(struct v4l2_subdev *sd, u8 reg, u8 value) { - ((struct saa7191 *)i2c_get_clientdata(client))->reg[reg] = value; + struct i2c_client *client = v4l2_get_subdevdata(sd); + + to_saa7191(sd)->reg[reg] = value; return i2c_smbus_write_byte_data(client, reg, value); } /* the first byte of data must be the first subaddress number (register) */ -static int saa7191_write_block(struct i2c_client *client, +static int saa7191_write_block(struct v4l2_subdev *sd, u8 length, const u8 *data) { + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct saa7191 *decoder = to_saa7191(sd); int i; int ret; - struct saa7191 *decoder = (struct saa7191 *)i2c_get_clientdata(client); for (i = 0; i < (length - 1); i++) { decoder->reg[data[0] + i] = data[i + 1]; } @@ -155,14 +162,15 @@ static int saa7191_write_block(struct i2c_client *client, /* Helper functions */ -static int saa7191_set_input(struct i2c_client *client, int input) +static int saa7191_s_routing(struct v4l2_subdev *sd, + const struct v4l2_routing *route) { - struct saa7191 *decoder = i2c_get_clientdata(client); - u8 luma = saa7191_read_reg(client, SAA7191_REG_LUMA); - u8 iock = saa7191_read_reg(client, SAA7191_REG_IOCK); + struct saa7191 *decoder = to_saa7191(sd); + u8 luma = saa7191_read_reg(sd, SAA7191_REG_LUMA); + u8 iock = saa7191_read_reg(sd, SAA7191_REG_IOCK); int err; - switch (input) { + switch (route->input) { case SAA7191_INPUT_COMPOSITE: /* Set Composite input */ iock &= ~(SAA7191_IOCK_CHRS | SAA7191_IOCK_GPSW1 | SAA7191_IOCK_GPSW2); @@ -178,24 +186,24 @@ static int saa7191_set_input(struct i2c_client *client, int input) return -EINVAL; } - err = saa7191_write_reg(client, SAA7191_REG_LUMA, luma); + err = saa7191_write_reg(sd, SAA7191_REG_LUMA, luma); if (err) return -EIO; - err = saa7191_write_reg(client, SAA7191_REG_IOCK, iock); + err = saa7191_write_reg(sd, SAA7191_REG_IOCK, iock); if (err) return -EIO; - decoder->input = input; + decoder->input = route->input; return 0; } -static int saa7191_set_norm(struct i2c_client *client, v4l2_std_id norm) +static int saa7191_s_std(struct v4l2_subdev *sd, v4l2_std_id norm) { - struct saa7191 *decoder = i2c_get_clientdata(client); - u8 stdc = saa7191_read_reg(client, SAA7191_REG_STDC); - u8 ctl3 = saa7191_read_reg(client, SAA7191_REG_CTL3); - u8 chcv = saa7191_read_reg(client, SAA7191_REG_CHCV); + struct saa7191 *decoder = to_saa7191(sd); + u8 stdc = saa7191_read_reg(sd, SAA7191_REG_STDC); + u8 ctl3 = saa7191_read_reg(sd, SAA7191_REG_CTL3); + u8 chcv = saa7191_read_reg(sd, SAA7191_REG_CHCV); int err; if (norm & V4L2_STD_PAL) { @@ -215,13 +223,13 @@ static int saa7191_set_norm(struct i2c_client *client, v4l2_std_id norm) return -EINVAL; } - err = saa7191_write_reg(client, SAA7191_REG_CTL3, ctl3); + err = saa7191_write_reg(sd, SAA7191_REG_CTL3, ctl3); if (err) return -EIO; - err = saa7191_write_reg(client, SAA7191_REG_STDC, stdc); + err = saa7191_write_reg(sd, SAA7191_REG_STDC, stdc); if (err) return -EIO; - err = saa7191_write_reg(client, SAA7191_REG_CHCV, chcv); + err = saa7191_write_reg(sd, SAA7191_REG_CHCV, chcv); if (err) return -EIO; @@ -234,14 +242,14 @@ static int saa7191_set_norm(struct i2c_client *client, v4l2_std_id norm) return 0; } -static int saa7191_wait_for_signal(struct i2c_client *client, u8 *status) +static int saa7191_wait_for_signal(struct v4l2_subdev *sd, u8 *status) { int i = 0; dprintk("Checking for signal...\n"); for (i = 0; i < SAA7191_SYNC_COUNT; i++) { - if (saa7191_read_status(client, status)) + if (saa7191_read_status(sd, status)) return -EIO; if (((*status) & SAA7191_STATUS_HLCK) == 0) { @@ -257,12 +265,11 @@ static int saa7191_wait_for_signal(struct i2c_client *client, u8 *status) return -EBUSY; } -static int saa7191_autodetect_norm_extended(struct i2c_client *client, - v4l2_std_id *norm) +static int saa7191_querystd(struct v4l2_subdev *sd, v4l2_std_id *norm) { - struct saa7191 *decoder = i2c_get_clientdata(client); - u8 stdc = saa7191_read_reg(client, SAA7191_REG_STDC); - u8 ctl3 = saa7191_read_reg(client, SAA7191_REG_CTL3); + struct saa7191 *decoder = to_saa7191(sd); + u8 stdc = saa7191_read_reg(sd, SAA7191_REG_STDC); + u8 ctl3 = saa7191_read_reg(sd, SAA7191_REG_CTL3); u8 status; v4l2_std_id old_norm = decoder->norm; int err = 0; @@ -273,19 +280,19 @@ static int saa7191_autodetect_norm_extended(struct i2c_client *client, stdc &= ~SAA7191_STDC_SECS; ctl3 &= ~(SAA7191_CTL3_FSEL); - err = saa7191_write_reg(client, SAA7191_REG_STDC, stdc); + err = saa7191_write_reg(sd, SAA7191_REG_STDC, stdc); if (err) { err = -EIO; goto out; } - err = saa7191_write_reg(client, SAA7191_REG_CTL3, ctl3); + err = saa7191_write_reg(sd, SAA7191_REG_CTL3, ctl3); if (err) { err = -EIO; goto out; } ctl3 |= SAA7191_CTL3_AUFD; - err = saa7191_write_reg(client, SAA7191_REG_CTL3, ctl3); + err = saa7191_write_reg(sd, SAA7191_REG_CTL3, ctl3); if (err) { err = -EIO; goto out; @@ -293,7 +300,7 @@ static int saa7191_autodetect_norm_extended(struct i2c_client *client, msleep(SAA7191_SYNC_DELAY); - err = saa7191_wait_for_signal(client, &status); + err = saa7191_wait_for_signal(sd, &status); if (err) goto out; @@ -308,39 +315,39 @@ static int saa7191_autodetect_norm_extended(struct i2c_client *client, dprintk("50Hz signal: Trying PAL...\n"); /* try PAL first */ - err = saa7191_set_norm(client, V4L2_STD_PAL); + err = saa7191_s_std(sd, V4L2_STD_PAL); if (err) goto out; msleep(SAA7191_SYNC_DELAY); - err = saa7191_wait_for_signal(client, &status); + err = saa7191_wait_for_signal(sd, &status); if (err) goto out; /* not 50Hz ? */ if (status & SAA7191_STATUS_FIDT) { dprintk("No 50Hz signal\n"); - saa7191_set_norm(client, old_norm); + saa7191_s_std(sd, old_norm); return -EAGAIN; } if (status & SAA7191_STATUS_CODE) { dprintk("PAL\n"); *norm = V4L2_STD_PAL; - return saa7191_set_norm(client, old_norm); + return saa7191_s_std(sd, old_norm); } dprintk("No color detected with PAL - Trying SECAM...\n"); /* no color detected ? -> try SECAM */ - err = saa7191_set_norm(client, V4L2_STD_SECAM); + err = saa7191_s_std(sd, V4L2_STD_SECAM); if (err) goto out; msleep(SAA7191_SYNC_DELAY); - err = saa7191_wait_for_signal(client, &status); + err = saa7191_wait_for_signal(sd, &status); if (err) goto out; @@ -355,16 +362,16 @@ static int saa7191_autodetect_norm_extended(struct i2c_client *client, /* Color detected -> SECAM */ dprintk("SECAM\n"); *norm = V4L2_STD_SECAM; - return saa7191_set_norm(client, old_norm); + return saa7191_s_std(sd, old_norm); } dprintk("No color detected with SECAM - Going back to PAL.\n"); out: - return saa7191_set_norm(client, old_norm); + return saa7191_s_std(sd, old_norm); } -static int saa7191_autodetect_norm(struct i2c_client *client) +static int saa7191_autodetect_norm(struct v4l2_subdev *sd) { u8 status; @@ -372,7 +379,7 @@ static int saa7191_autodetect_norm(struct i2c_client *client) dprintk("Reading status...\n"); - if (saa7191_read_status(client, &status)) + if (saa7191_read_status(sd, &status)) return -EIO; dprintk("Checking for signal...\n"); @@ -388,16 +395,15 @@ static int saa7191_autodetect_norm(struct i2c_client *client) if (status & SAA7191_STATUS_FIDT) { /* 60hz signal -> NTSC */ dprintk("NTSC\n"); - return saa7191_set_norm(client, V4L2_STD_NTSC); + return saa7191_s_std(sd, V4L2_STD_NTSC); } else { /* 50hz signal -> PAL */ dprintk("PAL\n"); - return saa7191_set_norm(client, V4L2_STD_PAL); + return saa7191_s_std(sd, V4L2_STD_PAL); } } -static int saa7191_get_control(struct i2c_client *client, - struct v4l2_control *ctrl) +static int saa7191_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) { u8 reg; int ret = 0; @@ -406,7 +412,7 @@ static int saa7191_get_control(struct i2c_client *client, case SAA7191_CONTROL_BANDPASS: case SAA7191_CONTROL_BANDPASS_WEIGHT: case SAA7191_CONTROL_CORING: - reg = saa7191_read_reg(client, SAA7191_REG_LUMA); + reg = saa7191_read_reg(sd, SAA7191_REG_LUMA); switch (ctrl->id) { case SAA7191_CONTROL_BANDPASS: ctrl->value = ((s32)reg & SAA7191_LUMA_BPSS_MASK) @@ -424,7 +430,7 @@ static int saa7191_get_control(struct i2c_client *client, break; case SAA7191_CONTROL_FORCE_COLOUR: case SAA7191_CONTROL_CHROMA_GAIN: - reg = saa7191_read_reg(client, SAA7191_REG_GAIN); + reg = saa7191_read_reg(sd, SAA7191_REG_GAIN); if (ctrl->id == SAA7191_CONTROL_FORCE_COLOUR) ctrl->value = ((s32)reg & SAA7191_GAIN_COLO) ? 1 : 0; else @@ -432,7 +438,7 @@ static int saa7191_get_control(struct i2c_client *client, >> SAA7191_GAIN_LFIS_SHIFT; break; case V4L2_CID_HUE: - reg = saa7191_read_reg(client, SAA7191_REG_HUEC); + reg = saa7191_read_reg(sd, SAA7191_REG_HUEC); if (reg < 0x80) reg += 0x80; else @@ -440,18 +446,18 @@ static int saa7191_get_control(struct i2c_client *client, ctrl->value = (s32)reg; break; case SAA7191_CONTROL_VTRC: - reg = saa7191_read_reg(client, SAA7191_REG_STDC); + reg = saa7191_read_reg(sd, SAA7191_REG_STDC); ctrl->value = ((s32)reg & SAA7191_STDC_VTRC) ? 1 : 0; break; case SAA7191_CONTROL_LUMA_DELAY: - reg = saa7191_read_reg(client, SAA7191_REG_CTL3); + reg = saa7191_read_reg(sd, SAA7191_REG_CTL3); ctrl->value = ((s32)reg & SAA7191_CTL3_YDEL_MASK) >> SAA7191_CTL3_YDEL_SHIFT; if (ctrl->value >= 4) ctrl->value -= 8; break; case SAA7191_CONTROL_VNR: - reg = saa7191_read_reg(client, SAA7191_REG_CTL4); + reg = saa7191_read_reg(sd, SAA7191_REG_CTL4); ctrl->value = ((s32)reg & SAA7191_CTL4_VNOI_MASK) >> SAA7191_CTL4_VNOI_SHIFT; break; @@ -462,8 +468,7 @@ static int saa7191_get_control(struct i2c_client *client, return ret; } -static int saa7191_set_control(struct i2c_client *client, - struct v4l2_control *ctrl) +static int saa7191_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) { u8 reg; int ret = 0; @@ -472,7 +477,7 @@ static int saa7191_set_control(struct i2c_client *client, case SAA7191_CONTROL_BANDPASS: case SAA7191_CONTROL_BANDPASS_WEIGHT: case SAA7191_CONTROL_CORING: - reg = saa7191_read_reg(client, SAA7191_REG_LUMA); + reg = saa7191_read_reg(sd, SAA7191_REG_LUMA); switch (ctrl->id) { case SAA7191_CONTROL_BANDPASS: reg &= ~SAA7191_LUMA_BPSS_MASK; @@ -490,11 +495,11 @@ static int saa7191_set_control(struct i2c_client *client, & SAA7191_LUMA_CORI_MASK; break; } - ret = saa7191_write_reg(client, SAA7191_REG_LUMA, reg); + ret = saa7191_write_reg(sd, SAA7191_REG_LUMA, reg); break; case SAA7191_CONTROL_FORCE_COLOUR: case SAA7191_CONTROL_CHROMA_GAIN: - reg = saa7191_read_reg(client, SAA7191_REG_GAIN); + reg = saa7191_read_reg(sd, SAA7191_REG_GAIN); if (ctrl->id == SAA7191_CONTROL_FORCE_COLOUR) { if (ctrl->value) reg |= SAA7191_GAIN_COLO; @@ -505,7 +510,7 @@ static int saa7191_set_control(struct i2c_client *client, reg |= (ctrl->value << SAA7191_GAIN_LFIS_SHIFT) & SAA7191_GAIN_LFIS_MASK; } - ret = saa7191_write_reg(client, SAA7191_REG_GAIN, reg); + ret = saa7191_write_reg(sd, SAA7191_REG_GAIN, reg); break; case V4L2_CID_HUE: reg = ctrl->value & 0xff; @@ -513,33 +518,33 @@ static int saa7191_set_control(struct i2c_client *client, reg += 0x80; else reg -= 0x80; - ret = saa7191_write_reg(client, SAA7191_REG_HUEC, reg); + ret = saa7191_write_reg(sd, SAA7191_REG_HUEC, reg); break; case SAA7191_CONTROL_VTRC: - reg = saa7191_read_reg(client, SAA7191_REG_STDC); + reg = saa7191_read_reg(sd, SAA7191_REG_STDC); if (ctrl->value) reg |= SAA7191_STDC_VTRC; else reg &= ~SAA7191_STDC_VTRC; - ret = saa7191_write_reg(client, SAA7191_REG_STDC, reg); + ret = saa7191_write_reg(sd, SAA7191_REG_STDC, reg); break; case SAA7191_CONTROL_LUMA_DELAY: { s32 value = ctrl->value; if (value < 0) value += 8; - reg = saa7191_read_reg(client, SAA7191_REG_CTL3); + reg = saa7191_read_reg(sd, SAA7191_REG_CTL3); reg &= ~SAA7191_CTL3_YDEL_MASK; reg |= (value << SAA7191_CTL3_YDEL_SHIFT) & SAA7191_CTL3_YDEL_MASK; - ret = saa7191_write_reg(client, SAA7191_REG_CTL3, reg); + ret = saa7191_write_reg(sd, SAA7191_REG_CTL3, reg); break; } case SAA7191_CONTROL_VNR: - reg = saa7191_read_reg(client, SAA7191_REG_CTL4); + reg = saa7191_read_reg(sd, SAA7191_REG_CTL4); reg &= ~SAA7191_CTL4_VNOI_MASK; reg |= (ctrl->value << SAA7191_CTL4_VNOI_SHIFT) & SAA7191_CTL4_VNOI_MASK; - ret = saa7191_write_reg(client, SAA7191_REG_CTL4, reg); + ret = saa7191_write_reg(sd, SAA7191_REG_CTL4, reg); break; default: ret = -EINVAL; @@ -550,57 +555,64 @@ static int saa7191_set_control(struct i2c_client *client, /* I2C-interface */ -static int saa7191_command(struct i2c_client *client, unsigned int cmd, - void *arg) +static int saa7191_g_input_status(struct v4l2_subdev *sd, u32 *status) { - switch (cmd) { - case VIDIOC_INT_G_INPUT_STATUS: { - u32 *iarg = arg; - u8 status; - int res = V4L2_IN_ST_NO_SIGNAL; + u8 status_reg; + int res = V4L2_IN_ST_NO_SIGNAL; - if (saa7191_read_status(client, &status)) - return -EIO; - if ((status & SAA7191_STATUS_HLCK) == 0) - res = 0; - if (!(status & SAA7191_STATUS_CODE)) - res |= V4L2_IN_ST_NO_COLOR; - *iarg = res; - break; - } + if (saa7191_read_status(sd, &status_reg)) + return -EIO; + if ((status_reg & SAA7191_STATUS_HLCK) == 0) + res = 0; + if (!(status_reg & SAA7191_STATUS_CODE)) + res |= V4L2_IN_ST_NO_COLOR; + *status = res; + return 0; +} - case VIDIOC_QUERYSTD: - return saa7191_autodetect_norm_extended(client, arg); - case VIDIOC_S_STD: { - v4l2_std_id *istd = arg; +static int saa7191_g_chip_ident(struct v4l2_subdev *sd, + struct v4l2_dbg_chip_ident *chip) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); - return saa7191_set_norm(client, *istd); - } - case VIDIOC_INT_S_VIDEO_ROUTING: { - struct v4l2_routing *route = arg; + return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_SAA7191, 0); +} - return saa7191_set_input(client, route->input); - } +static int saa7191_command(struct i2c_client *client, unsigned cmd, void *arg) +{ + return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg); +} - case VIDIOC_G_CTRL: - return saa7191_get_control(client, arg); +/* ----------------------------------------------------------------------- */ - case VIDIOC_S_CTRL: - return saa7191_set_control(client, arg); +static const struct v4l2_subdev_core_ops saa7191_core_ops = { + .g_chip_ident = saa7191_g_chip_ident, + .g_ctrl = saa7191_g_ctrl, + .s_ctrl = saa7191_s_ctrl, +}; - default: - return -EINVAL; - } +static const struct v4l2_subdev_tuner_ops saa7191_tuner_ops = { + .s_std = saa7191_s_std, +}; - return 0; -} +static const struct v4l2_subdev_video_ops saa7191_video_ops = { + .s_routing = saa7191_s_routing, + .querystd = saa7191_querystd, + .g_input_status = saa7191_g_input_status, +}; + +static const struct v4l2_subdev_ops saa7191_ops = { + .core = &saa7191_core_ops, + .video = &saa7191_video_ops, +}; static int saa7191_probe(struct i2c_client *client, const struct i2c_device_id *id) { int err = 0; struct saa7191 *decoder; + struct v4l2_subdev *sd; v4l_info(client, "chip found @ 0x%x (%s)\n", client->addr << 1, client->adapter->name); @@ -609,11 +621,10 @@ static int saa7191_probe(struct i2c_client *client, if (!decoder) return -ENOMEM; - i2c_set_clientdata(client, decoder); - - decoder->client = client; + sd = &decoder->sd; + v4l2_i2c_subdev_init(sd, client, &saa7191_ops); - err = saa7191_write_block(client, sizeof(initseq), initseq); + err = saa7191_write_block(sd, sizeof(initseq), initseq); if (err) { printk(KERN_ERR "SAA7191 initialization failed\n"); kfree(decoder); @@ -625,7 +636,7 @@ static int saa7191_probe(struct i2c_client *client, decoder->input = SAA7191_INPUT_COMPOSITE; decoder->norm = V4L2_STD_PAL; - err = saa7191_autodetect_norm(client); + err = saa7191_autodetect_norm(sd); if (err && (err != -EBUSY)) printk(KERN_ERR "SAA7191: Signal auto-detection failed\n"); @@ -634,9 +645,10 @@ static int saa7191_probe(struct i2c_client *client, static int saa7191_remove(struct i2c_client *client) { - struct saa7191 *decoder = i2c_get_clientdata(client); + struct v4l2_subdev *sd = i2c_get_clientdata(client); - kfree(decoder); + v4l2_device_unregister_subdev(sd); + kfree(to_saa7191(sd)); return 0; } diff --git a/include/media/v4l2-chip-ident.h b/include/media/v4l2-chip-ident.h index f02517b..43684f1 100644 --- a/include/media/v4l2-chip-ident.h +++ b/include/media/v4l2-chip-ident.h @@ -131,6 +131,9 @@ enum { /* module saa7185: just ident 7185 */ V4L2_IDENT_SAA7185 = 7185, + /* module saa7191: just ident 7191 */ + V4L2_IDENT_SAA7191 = 7191, + /* module wm8739: just ident 8739 */ V4L2_IDENT_WM8739 = 8739, |
