diff options
Diffstat (limited to 'drivers/media/i2c/saa6752hs.c')
| -rw-r--r-- | drivers/media/i2c/saa6752hs.c | 790 |
1 files changed, 790 insertions, 0 deletions
diff --git a/drivers/media/i2c/saa6752hs.c b/drivers/media/i2c/saa6752hs.c new file mode 100644 index 000000000000..8272c0b9c5bf --- /dev/null +++ b/drivers/media/i2c/saa6752hs.c @@ -0,0 +1,790 @@ + /* + saa6752hs - i2c-driver for the saa6752hs by Philips + + Copyright (C) 2004 Andrew de Quincey + + AC-3 support: + + Copyright (C) 2008 Hans Verkuil <hverkuil@xs4all.nl> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License vs published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + 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 Mvss Ave, Cambridge, MA 02139, USA. + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/string.h> +#include <linux/timer.h> +#include <linux/delay.h> +#include <linux/errno.h> +#include <linux/slab.h> +#include <linux/poll.h> +#include <linux/i2c.h> +#include <linux/types.h> +#include <linux/videodev2.h> +#include <linux/init.h> +#include <linux/crc32.h> +#include <media/v4l2-device.h> +#include <media/v4l2-ctrls.h> +#include <media/v4l2-common.h> + +#define MPEG_VIDEO_TARGET_BITRATE_MAX 27000 +#define MPEG_VIDEO_MAX_BITRATE_MAX 27000 +#define MPEG_TOTAL_TARGET_BITRATE_MAX 27000 +#define MPEG_PID_MAX ((1 << 14) - 1) + + +MODULE_DESCRIPTION("device driver for saa6752hs MPEG2 encoder"); +MODULE_AUTHOR("Andrew de Quincey"); +MODULE_LICENSE("GPL"); + +enum saa6752hs_videoformat { + SAA6752HS_VF_D1 = 0, /* standard D1 video format: 720x576 */ + SAA6752HS_VF_2_3_D1 = 1,/* 2/3D1 video format: 480x576 */ + SAA6752HS_VF_1_2_D1 = 2,/* 1/2D1 video format: 352x576 */ + SAA6752HS_VF_SIF = 3, /* SIF video format: 352x288 */ + SAA6752HS_VF_UNKNOWN, +}; + +struct saa6752hs_mpeg_params { + /* transport streams */ + __u16 ts_pid_pmt; + __u16 ts_pid_audio; + __u16 ts_pid_video; + __u16 ts_pid_pcr; + + /* audio */ + enum v4l2_mpeg_audio_encoding au_encoding; + enum v4l2_mpeg_audio_l2_bitrate au_l2_bitrate; + enum v4l2_mpeg_audio_ac3_bitrate au_ac3_bitrate; + + /* video */ + enum v4l2_mpeg_video_aspect vi_aspect; + enum v4l2_mpeg_video_bitrate_mode vi_bitrate_mode; + __u32 vi_bitrate; + __u32 vi_bitrate_peak; +}; + +static const struct v4l2_format v4l2_format_table[] = +{ + [SAA6752HS_VF_D1] = + { .fmt = { .pix = { .width = 720, .height = 576 }}}, + [SAA6752HS_VF_2_3_D1] = + { .fmt = { .pix = { .width = 480, .height = 576 }}}, + [SAA6752HS_VF_1_2_D1] = + { .fmt = { .pix = { .width = 352, .height = 576 }}}, + [SAA6752HS_VF_SIF] = + { .fmt = { .pix = { .width = 352, .height = 288 }}}, + [SAA6752HS_VF_UNKNOWN] = + { .fmt = { .pix = { .width = 0, .height = 0}}}, +}; + +struct saa6752hs_state { + struct v4l2_subdev sd; + struct v4l2_ctrl_handler hdl; + struct { /* video bitrate mode control cluster */ + struct v4l2_ctrl *video_bitrate_mode; + struct v4l2_ctrl *video_bitrate; + struct v4l2_ctrl *video_bitrate_peak; + }; + u32 revision; + int has_ac3; + struct saa6752hs_mpeg_params params; + enum saa6752hs_videoformat video_format; + v4l2_std_id standard; +}; + +enum saa6752hs_command { + SAA6752HS_COMMAND_RESET = 0, + SAA6752HS_COMMAND_STOP = 1, + SAA6752HS_COMMAND_START = 2, + SAA6752HS_COMMAND_PAUSE = 3, + SAA6752HS_COMMAND_RECONFIGURE = 4, + SAA6752HS_COMMAND_SLEEP = 5, + SAA6752HS_COMMAND_RECONFIGURE_FORCE = 6, + + SAA6752HS_COMMAND_MAX +}; + +static inline struct saa6752hs_state *to_state(struct v4l2_subdev *sd) +{ + return container_of(sd, struct saa6752hs_state, sd); +} + +/* ---------------------------------------------------------------------- */ + +static const u8 PAT[] = { + 0xc2, /* i2c register */ + 0x00, /* table number for encoder */ + + 0x47, /* sync */ + 0x40, 0x00, /* transport_error_indicator(0), payload_unit_start(1), transport_priority(0), pid(0) */ + 0x10, /* transport_scrambling_control(00), adaptation_field_control(01), continuity_counter(0) */ + + 0x00, /* PSI pointer to start of table */ + + 0x00, /* tid(0) */ + 0xb0, 0x0d, /* section_syntax_indicator(1), section_length(13) */ + + 0x00, 0x01, /* transport_stream_id(1) */ + + 0xc1, /* version_number(0), current_next_indicator(1) */ + + 0x00, 0x00, /* section_number(0), last_section_number(0) */ + + 0x00, 0x01, /* program_number(1) */ + + 0xe0, 0x00, /* PMT PID */ + + 0x00, 0x00, 0x00, 0x00 /* CRC32 */ +}; + +static const u8 PMT[] = { + 0xc2, /* i2c register */ + 0x01, /* table number for encoder */ + + 0x47, /* sync */ + 0x40, 0x00, /* transport_error_indicator(0), payload_unit_start(1), transport_priority(0), pid */ + 0x10, /* transport_scrambling_control(00), adaptation_field_control(01), continuity_counter(0) */ + + 0x00, /* PSI pointer to start of table */ + + 0x02, /* tid(2) */ + 0xb0, 0x17, /* section_syntax_indicator(1), section_length(23) */ + + 0x00, 0x01, /* program_number(1) */ + + 0xc1, /* version_number(0), current_next_indicator(1) */ + + 0x00, 0x00, /* section_number(0), last_section_number(0) */ + + 0xe0, 0x00, /* PCR_PID */ + + 0xf0, 0x00, /* program_info_length(0) */ + + 0x02, 0xe0, 0x00, 0xf0, 0x00, /* video stream type(2), pid */ + 0x04, 0xe0, 0x00, 0xf0, 0x00, /* audio stream type(4), pid */ + + 0x00, 0x00, 0x00, 0x00 /* CRC32 */ +}; + +static const u8 PMT_AC3[] = { + 0xc2, /* i2c register */ + 0x01, /* table number for encoder(1) */ + 0x47, /* sync */ + + 0x40, /* transport_error_indicator(0), payload_unit_start(1), transport_priority(0) */ + 0x10, /* PMT PID (0x0010) */ + 0x10, /* transport_scrambling_control(00), adaptation_field_control(01), continuity_counter(0) */ + + 0x00, /* PSI pointer to start of table */ + + 0x02, /* TID (2) */ + 0xb0, 0x1a, /* section_syntax_indicator(1), section_length(26) */ + + 0x00, 0x01, /* program_number(1) */ + + 0xc1, /* version_number(0), current_next_indicator(1) */ + + 0x00, 0x00, /* section_number(0), last_section_number(0) */ + + 0xe1, 0x04, /* PCR_PID (0x0104) */ + + 0xf0, 0x00, /* program_info_length(0) */ + + 0x02, 0xe1, 0x00, 0xf0, 0x00, /* video stream type(2), pid */ + 0x06, 0xe1, 0x03, 0xf0, 0x03, /* audio stream type(6), pid */ + 0x6a, /* AC3 */ + 0x01, /* Descriptor_length(1) */ + 0x00, /* component_type_flag(0), bsid_flag(0), mainid_flag(0), asvc_flag(0), reserved flags(0) */ + + 0xED, 0xDE, 0x2D, 0xF3 /* CRC32 BE */ +}; + +static const struct saa6752hs_mpeg_params param_defaults = +{ + .ts_pid_pmt = 16, + .ts_pid_video = 260, + .ts_pid_audio = 256, + .ts_pid_pcr = 259, + + .vi_aspect = V4L2_MPEG_VIDEO_ASPECT_4x3, + .vi_bitrate = 4000, + .vi_bitrate_peak = 6000, + .vi_bitrate_mode = V4L2_MPEG_VIDEO_BITRATE_MODE_VBR, + + .au_encoding = V4L2_MPEG_AUDIO_ENCODING_LAYER_2, + .au_l2_bitrate = V4L2_MPEG_AUDIO_L2_BITRATE_256K, + .au_ac3_bitrate = V4L2_MPEG_AUDIO_AC3_BITRATE_256K, +}; + +/* ---------------------------------------------------------------------- */ + +static int saa6752hs_chip_command(struct i2c_client *client, + enum saa6752hs_command command) +{ + unsigned char buf[3]; + unsigned long timeout; + int status = 0; + + /* execute the command */ + switch(command) { + case SAA6752HS_COMMAND_RESET: + buf[0] = 0x00; + break; + + case SAA6752HS_COMMAND_STOP: + buf[0] = 0x03; + break; + + case SAA6752HS_COMMAND_START: + buf[0] = 0x02; + break; + + case SAA6752HS_COMMAND_PAUSE: + buf[0] = 0x04; + break; + + case SAA6752HS_COMMAND_RECONFIGURE: + buf[0] = 0x05; + break; + + case SAA6752HS_COMMAND_SLEEP: + buf[0] = 0x06; + break; + + case SAA6752HS_COMMAND_RECONFIGURE_FORCE: + buf[0] = 0x07; + break; + + default: + return -EINVAL; + } + + /* set it and wait for it to be so */ + i2c_master_send(client, buf, 1); + timeout = jiffies + HZ * 3; + for (;;) { + /* get the current status */ + buf[0] = 0x10; + i2c_master_send(client, buf, 1); + i2c_master_recv(client, buf, 1); + + if (!(buf[0] & 0x20)) + break; + if (time_after(jiffies,timeout)) { + status = -ETIMEDOUT; + break; + } + + msleep(10); + } + + /* delay a bit to let encoder settle */ + msleep(50); + + return status; +} + + +static inline void set_reg8(struct i2c_client *client, uint8_t reg, uint8_t val) +{ + u8 buf[2]; + + buf[0] = reg; + buf[1] = val; + i2c_master_send(client, buf, 2); +} + +static inline void set_reg16(struct i2c_client *client, uint8_t reg, uint16_t val) +{ + u8 buf[3]; + + buf[0] = reg; + buf[1] = val >> 8; + buf[2] = val & 0xff; + i2c_master_send(client, buf, 3); +} + +static int saa6752hs_set_bitrate(struct i2c_client *client, + struct saa6752hs_state *h) +{ + struct saa6752hs_mpeg_params *params = &h->params; + int tot_bitrate; + int is_384k; + + /* set the bitrate mode */ + set_reg8(client, 0x71, + params->vi_bitrate_mode != V4L2_MPEG_VIDEO_BITRATE_MODE_VBR); + + /* set the video bitrate */ + if (params->vi_bitrate_mode == V4L2_MPEG_VIDEO_BITRATE_MODE_VBR) { + /* set the target bitrate */ + set_reg16(client, 0x80, params->vi_bitrate); + + /* set the max bitrate */ + set_reg16(client, 0x81, params->vi_bitrate_peak); + tot_bitrate = params->vi_bitrate_peak; + } else { + /* set the target bitrate (no max bitrate for CBR) */ + set_reg16(client, 0x81, params->vi_bitrate); + tot_bitrate = params->vi_bitrate; + } + + /* set the audio encoding */ + set_reg8(client, 0x93, + params->au_encoding == V4L2_MPEG_AUDIO_ENCODING_AC3); + + /* set the audio bitrate */ + if (params->au_encoding == V4L2_MPEG_AUDIO_ENCODING_AC3) + is_384k = V4L2_MPEG_AUDIO_AC3_BITRATE_384K == params->au_ac3_bitrate; + else + is_384k = V4L2_MPEG_AUDIO_L2_BITRATE_384K == params->au_l2_bitrate; + set_reg8(client, 0x94, is_384k); + tot_bitrate += is_384k ? 384 : 256; + + /* Note: the total max bitrate is determined by adding the video and audio + bitrates together and also adding an extra 768kbit/s to stay on the + safe side. If more control should be required, then an extra MPEG control + should be added. */ + tot_bitrate += 768; + if (tot_bitrate > MPEG_TOTAL_TARGET_BITRATE_MAX) + tot_bitrate = MPEG_TOTAL_TARGET_BITRATE_MAX; + + /* set the total bitrate */ + set_reg16(client, 0xb1, tot_bitrate); + return 0; +} + +static int saa6752hs_try_ctrl(struct v4l2_ctrl *ctrl) +{ + struct saa6752hs_state *h = + container_of(ctrl->handler, struct saa6752hs_state, hdl); + + switch (ctrl->id) { + case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: + /* peak bitrate shall be >= normal bitrate */ + if (ctrl->val == V4L2_MPEG_VIDEO_BITRATE_MODE_VBR && + h->video_bitrate_peak->val < h->video_bitrate->val) + h->video_bitrate_peak->val = h->video_bitrate->val; + break; + } + return 0; +} + +static int saa6752hs_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct saa6752hs_state *h = + container_of(ctrl->handler, struct saa6752hs_state, hdl); + struct saa6752hs_mpeg_params *params = &h->params; + + switch (ctrl->id) { + case V4L2_CID_MPEG_STREAM_TYPE: + break; + case V4L2_CID_MPEG_STREAM_PID_PMT: + params->ts_pid_pmt = ctrl->val; + break; + case V4L2_CID_MPEG_STREAM_PID_AUDIO: + params->ts_pid_audio = ctrl->val; + break; + case V4L2_CID_MPEG_STREAM_PID_VIDEO: + params->ts_pid_video = ctrl->val; + break; + case V4L2_CID_MPEG_STREAM_PID_PCR: + params->ts_pid_pcr = ctrl->val; + break; + case V4L2_CID_MPEG_AUDIO_ENCODING: + params->au_encoding = ctrl->val; + break; + case V4L2_CID_MPEG_AUDIO_L2_BITRATE: + params->au_l2_bitrate = ctrl->val; + break; + case V4L2_CID_MPEG_AUDIO_AC3_BITRATE: + params->au_ac3_bitrate = ctrl->val; + break; + case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ: + break; + case V4L2_CID_MPEG_VIDEO_ENCODING: + break; + case V4L2_CID_MPEG_VIDEO_ASPECT: + params->vi_aspect = ctrl->val; + break; + case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: + params->vi_bitrate_mode = ctrl->val; + params->vi_bitrate = h->video_bitrate->val / 1000; + params->vi_bitrate_peak = h->video_bitrate_peak->val / 1000; + v4l2_ctrl_activate(h->video_bitrate_peak, + ctrl->val == V4L2_MPEG_VIDEO_BITRATE_MODE_VBR); + break; + default: + return -EINVAL; + } + return 0; +} + +static int saa6752hs_init(struct v4l2_subdev *sd, u32 leading_null_bytes) +{ + unsigned char buf[9], buf2[4]; + struct saa6752hs_state *h = to_state(sd); + struct i2c_client *client = v4l2_get_subdevdata(sd); + unsigned size; + u32 crc; + unsigned char localPAT[256]; + unsigned char localPMT[256]; + + /* Set video format - must be done first as it resets other settings */ + set_reg8(client, 0x41, h->video_format); + + /* Set number of lines in input signal */ + set_reg8(client, 0x40, (h->standard & V4L2_STD_525_60) ? 1 : 0); + + /* set bitrate */ + saa6752hs_set_bitrate(client, h); + + /* Set GOP structure {3, 13} */ + set_reg16(client, 0x72, 0x030d); + + /* Set minimum Q-scale {4} */ + set_reg8(client, 0x82, 0x04); + + /* Set maximum Q-scale {12} */ + set_reg8(client, 0x83, 0x0c); + + /* Set Output Protocol */ + set_reg8(client, 0xd0, 0x81); + + /* Set video output stream format {TS} */ + set_reg8(client, 0xb0, 0x05); + + /* Set leading null byte for TS */ + set_reg16(client, 0xf6, leading_null_bytes); + + /* compute PAT */ + memcpy(localPAT, PAT, sizeof(PAT)); + localPAT[17] = 0xe0 | ((h->params.ts_pid_pmt >> 8) & 0x0f); + localPAT[18] = h->params.ts_pid_pmt & 0xff; + crc = crc32_be(~0, &localPAT[7], sizeof(PAT) - 7 - 4); + localPAT[sizeof(PAT) - 4] = (crc >> 24) & 0xFF; + localPAT[sizeof(PAT) - 3] = (crc >> 16) & 0xFF; + localPAT[sizeof(PAT) - 2] = (crc >> 8) & 0xFF; + localPAT[sizeof(PAT) - 1] = crc & 0xFF; + + /* compute PMT */ + if (h->params.au_encoding == V4L2_MPEG_AUDIO_ENCODING_AC3) { + size = sizeof(PMT_AC3); + memcpy(localPMT, PMT_AC3, size); + } else { + size = sizeof(PMT); + memcpy(localPMT, PMT, size); + } + localPMT[3] = 0x40 | ((h->params.ts_pid_pmt >> 8) & 0x0f); + localPMT[4] = h->params.ts_pid_pmt & 0xff; + localPMT[15] = 0xE0 | ((h->params.ts_pid_pcr >> 8) & 0x0F); + localPMT[16] = h->params.ts_pid_pcr & 0xFF; + localPMT[20] = 0xE0 | ((h->params.ts_pid_video >> 8) & 0x0F); + localPMT[21] = h->params.ts_pid_video & 0xFF; + localPMT[25] = 0xE0 | ((h->params.ts_pid_audio >> 8) & 0x0F); + localPMT[26] = h->params.ts_pid_audio & 0xFF; + crc = crc32_be(~0, &localPMT[7], size - 7 - 4); + localPMT[size - 4] = (crc >> 24) & 0xFF; + localPMT[size - 3] = (crc >> 16) & 0xFF; + localPMT[size - 2] = (crc >> 8) & 0xFF; + localPMT[size - 1] = crc & 0xFF; + + /* Set Audio PID */ + set_reg16(client, 0xc1, h->params.ts_pid_audio); + + /* Set Video PID */ + set_reg16(client, 0xc0, h->params.ts_pid_video); + + /* Set PCR PID */ + set_reg16(client, 0xc4, h->params.ts_pid_pcr); + + /* Send SI tables */ + i2c_master_send(client, localPAT, sizeof(PAT)); + i2c_master_send(client, localPMT, size); + + /* mute then unmute audio. This removes buzzing artefacts */ + set_reg8(client, 0xa4, 1); + set_reg8(client, 0xa4, 0); + + /* start it going */ + saa6752hs_chip_command(client, SAA6752HS_COMMAND_START); + + /* readout current state */ + buf[0] = 0xE1; + buf[1] = 0xA7; + buf[2] = 0xFE; + buf[3] = 0x82; + buf[4] = 0xB0; + i2c_master_send(client, buf, 5); + i2c_master_recv(client, buf2, 4); + + /* change aspect ratio */ + buf[0] = 0xE0; + buf[1] = 0xA7; + buf[2] = 0xFE; + buf[3] = 0x82; + buf[4] = 0xB0; + buf[5] = buf2[0]; + switch (h->params.vi_aspect) { + case V4L2_MPEG_VIDEO_ASPECT_16x9: + buf[6] = buf2[1] | 0x40; + break; + case V4L2_MPEG_VIDEO_ASPECT_4x3: + default: + buf[6] = buf2[1] & 0xBF; + break; + } + buf[7] = buf2[2]; + buf[8] = buf2[3]; + i2c_master_send(client, buf, 9); + + return 0; +} + +static int saa6752hs_g_mbus_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *f) +{ + struct saa6752hs_state *h = to_state(sd); + + if (h->video_format == SAA6752HS_VF_UNKNOWN) + h->video_format = SAA6752HS_VF_D1; + f->width = v4l2_format_table[h->video_format].fmt.pix.width; + f->height = v4l2_format_table[h->video_format].fmt.pix.height; + f->code = V4L2_MBUS_FMT_FIXED; + f->field = V4L2_FIELD_INTERLACED; + f->colorspace = V4L2_COLORSPACE_SMPTE170M; + return 0; +} + +static int saa6752hs_try_mbus_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *f) +{ + int dist_352, dist_480, dist_720; + + f->code = V4L2_MBUS_FMT_FIXED; + + dist_352 = abs(f->width - 352); + dist_480 = abs(f->width - 480); + dist_720 = abs(f->width - 720); + if (dist_720 < dist_480) { + f->width = 720; + f->height = 576; + } else if (dist_480 < dist_352) { + f->width = 480; + f->height = 576; + } else { + f->width = 352; + if (abs(f->height - 576) < abs(f->height - 288)) + f->height = 576; + else + f->height = 288; + } + f->field = V4L2_FIELD_INTERLACED; + f->colorspace = V4L2_COLORSPACE_SMPTE170M; + return 0; +} + +static int saa6752hs_s_mbus_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *f) +{ + struct saa6752hs_state *h = to_state(sd); + + if (f->code != V4L2_MBUS_FMT_FIXED) + return -EINVAL; + + /* + FIXME: translate and round width/height into EMPRESS + subsample type: + + type | PAL | NTSC + --------------------------- + SIF | 352x288 | 352x240 + 1/2 D1 | 352x576 | 352x480 + 2/3 D1 | 480x576 | 480x480 + D1 | 720x576 | 720x480 + */ + + saa6752hs_try_mbus_fmt(sd, f); + if (f->width == 720) + h->video_format = SAA6752HS_VF_D1; + else if (f->width == 480) + h->video_format = SAA6752HS_VF_2_3_D1; + else if (f->height == 576) + h->video_format = SAA6752HS_VF_1_2_D1; + else + h->video_format = SAA6752HS_VF_SIF; + return 0; +} + +static int saa6752hs_s_std(struct v4l2_subdev *sd, v4l2_std_id std) +{ + struct saa6752hs_state *h = to_state(sd); + + h->standard = std; + return 0; +} + +/* ----------------------------------------------------------------------- */ + +static const struct v4l2_ctrl_ops saa6752hs_ctrl_ops = { + .try_ctrl = saa6752hs_try_ctrl, + .s_ctrl = saa6752hs_s_ctrl, +}; + +static const struct v4l2_subdev_core_ops saa6752hs_core_ops = { + .init = saa6752hs_init, + .s_std = saa6752hs_s_std, +}; + +static const struct v4l2_subdev_video_ops saa6752hs_video_ops = { + .s_mbus_fmt = saa6752hs_s_mbus_fmt, + .try_mbus_fmt = saa6752hs_try_mbus_fmt, + .g_mbus_fmt = saa6752hs_g_mbus_fmt, +}; + +static const struct v4l2_subdev_ops saa6752hs_ops = { + .core = &saa6752hs_core_ops, + .video = &saa6752hs_video_ops, +}; + +static int saa6752hs_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct saa6752hs_state *h = kzalloc(sizeof(*h), GFP_KERNEL); + struct v4l2_subdev *sd; + struct v4l2_ctrl_handler *hdl; + u8 addr = 0x13; + u8 data[12]; + + v4l_info(client, "chip found @ 0x%x (%s)\n", + client->addr << 1, client->adapter->name); + if (h == NULL) + return -ENOMEM; + sd = &h->sd; + v4l2_i2c_subdev_init(sd, client, &saa6752hs_ops); + + i2c_master_send(client, &addr, 1); + i2c_master_recv(client, data, sizeof(data)); + h->revision = (data[8] << 8) | data[9]; + h->has_ac3 = 0; + if (h->revision == 0x0206) { + h->has_ac3 = 1; + v4l_info(client, "supports AC-3\n"); + } + h->params = param_defaults; + + hdl = &h->hdl; + v4l2_ctrl_handler_init(hdl, 14); + v4l2_ctrl_new_std_menu(hdl, &saa6752hs_ctrl_ops, + V4L2_CID_MPEG_AUDIO_ENCODING, + h->has_ac3 ? V4L2_MPEG_AUDIO_ENCODING_AC3 : + V4L2_MPEG_AUDIO_ENCODING_LAYER_2, + 0x0d, V4L2_MPEG_AUDIO_ENCODING_LAYER_2); + + v4l2_ctrl_new_std_menu(hdl, &saa6752hs_ctrl_ops, + V4L2_CID_MPEG_AUDIO_L2_BITRATE, + V4L2_MPEG_AUDIO_L2_BITRATE_384K, + ~((1 << V4L2_MPEG_AUDIO_L2_BITRATE_256K) | + (1 << V4L2_MPEG_AUDIO_L2_BITRATE_384K)), + V4L2_MPEG_AUDIO_L2_BITRATE_256K); + + if (h->has_ac3) + v4l2_ctrl_new_std_menu(hdl, &saa6752hs_ctrl_ops, + V4L2_CID_MPEG_AUDIO_AC3_BITRATE, + V4L2_MPEG_AUDIO_AC3_BITRATE_384K, + ~((1 << V4L2_MPEG_AUDIO_AC3_BITRATE_256K) | + (1 << V4L2_MPEG_AUDIO_AC3_BITRATE_384K)), + V4L2_MPEG_AUDIO_AC3_BITRATE_256K); + + v4l2_ctrl_new_std_menu(hdl, &saa6752hs_ctrl_ops, + V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ, + V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000, + ~(1 << V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000), + V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000); + + v4l2_ctrl_new_std_menu(hdl, &saa6752hs_ctrl_ops, + V4L2_CID_MPEG_VIDEO_ENCODING, + V4L2_MPEG_VIDEO_ENCODING_MPEG_2, + ~(1 << V4L2_MPEG_VIDEO_ENCODING_MPEG_2), + V4L2_MPEG_VIDEO_ENCODING_MPEG_2); + + v4l2_ctrl_new_std_menu(hdl, &saa6752hs_ctrl_ops, + V4L2_CID_MPEG_VIDEO_ASPECT, + V4L2_MPEG_VIDEO_ASPECT_16x9, 0x01, + V4L2_MPEG_VIDEO_ASPECT_4x3); + + h->video_bitrate_peak = v4l2_ctrl_new_std(hdl, &saa6752hs_ctrl_ops, + V4L2_CID_MPEG_VIDEO_BITRATE_PEAK, + 1000000, 27000000, 1000, 8000000); + + v4l2_ctrl_new_std_menu(hdl, &saa6752hs_ctrl_ops, + V4L2_CID_MPEG_STREAM_TYPE, + V4L2_MPEG_STREAM_TYPE_MPEG2_TS, + ~(1 << V4L2_MPEG_STREAM_TYPE_MPEG2_TS), + V4L2_MPEG_STREAM_TYPE_MPEG2_TS); + + h->video_bitrate_mode = v4l2_ctrl_new_std_menu(hdl, &saa6752hs_ctrl_ops, + V4L2_CID_MPEG_VIDEO_BITRATE_MODE, + V4L2_MPEG_VIDEO_BITRATE_MODE_CBR, 0, + V4L2_MPEG_VIDEO_BITRATE_MODE_VBR); + h->video_bitrate = v4l2_ctrl_new_std(hdl, &saa6752hs_ctrl_ops, + V4L2_CID_MPEG_VIDEO_BITRATE, 1000000, 27000000, 1000, 6000000); + v4l2_ctrl_new_std(hdl, &saa6752hs_ctrl_ops, + V4L2_CID_MPEG_STREAM_PID_PMT, 0, (1 << 14) - 1, 1, 16); + v4l2_ctrl_new_std(hdl, &saa6752hs_ctrl_ops, + V4L2_CID_MPEG_STREAM_PID_AUDIO, 0, (1 << 14) - 1, 1, 260); + v4l2_ctrl_new_std(hdl, &saa6752hs_ctrl_ops, + V4L2_CID_MPEG_STREAM_PID_VIDEO, 0, (1 << 14) - 1, 1, 256); + v4l2_ctrl_new_std(hdl, &saa6752hs_ctrl_ops, + V4L2_CID_MPEG_STREAM_PID_PCR, 0, (1 << 14) - 1, 1, 259); + sd->ctrl_handler = hdl; + if (hdl->error) { + int err = hdl->error; + + v4l2_ctrl_handler_free(hdl); + kfree(h); + return err; + } + v4l2_ctrl_cluster(3, &h->video_bitrate_mode); + v4l2_ctrl_handler_setup(hdl); + h->standard = 0; /* Assume 625 input lines */ + return 0; +} + +static int saa6752hs_remove(struct i2c_client *client) +{ + struct v4l2_subdev *sd = i2c_get_clientdata(client); + + v4l2_device_unregister_subdev(sd); + v4l2_ctrl_handler_free(&to_state(sd)->hdl); + kfree(to_state(sd)); + return 0; +} + +static const struct i2c_device_id saa6752hs_id[] = { + { "saa6752hs", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, saa6752hs_id); + +static struct i2c_driver saa6752hs_driver = { + .driver = { + .owner = THIS_MODULE, + .name = "saa6752hs", + }, + .probe = saa6752hs_probe, + .remove = saa6752hs_remove, + .id_table = saa6752hs_id, +}; + +module_i2c_driver(saa6752hs_driver); |
