diff options
Diffstat (limited to 'drivers/media/video/saa7134/saa6752hs.c')
| -rw-r--r-- | drivers/media/video/saa7134/saa6752hs.c | 1012 |
1 files changed, 0 insertions, 1012 deletions
diff --git a/drivers/media/video/saa7134/saa6752hs.c b/drivers/media/video/saa7134/saa6752hs.c deleted file mode 100644 index f147b05bd860..000000000000 --- a/drivers/media/video/saa7134/saa6752hs.c +++ /dev/null @@ -1,1012 +0,0 @@ - /* - 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 <media/v4l2-device.h> -#include <media/v4l2-common.h> -#include <media/v4l2-chip-ident.h> -#include <linux/init.h> -#include <linux/crc32.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; - int chip; - 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 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 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 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 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 get_ctrl(int has_ac3, struct saa6752hs_mpeg_params *params, - struct v4l2_ext_control *ctrl) -{ - switch (ctrl->id) { - case V4L2_CID_MPEG_STREAM_TYPE: - ctrl->value = V4L2_MPEG_STREAM_TYPE_MPEG2_TS; - break; - case V4L2_CID_MPEG_STREAM_PID_PMT: - ctrl->value = params->ts_pid_pmt; - break; - case V4L2_CID_MPEG_STREAM_PID_AUDIO: - ctrl->value = params->ts_pid_audio; - break; - case V4L2_CID_MPEG_STREAM_PID_VIDEO: - ctrl->value = params->ts_pid_video; - break; - case V4L2_CID_MPEG_STREAM_PID_PCR: - ctrl->value = params->ts_pid_pcr; - break; - case V4L2_CID_MPEG_AUDIO_ENCODING: - ctrl->value = params->au_encoding; - break; - case V4L2_CID_MPEG_AUDIO_L2_BITRATE: - ctrl->value = params->au_l2_bitrate; - break; - case V4L2_CID_MPEG_AUDIO_AC3_BITRATE: - if (!has_ac3) - return -EINVAL; - ctrl->value = params->au_ac3_bitrate; - break; - case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ: - ctrl->value = V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000; - break; - case V4L2_CID_MPEG_VIDEO_ENCODING: - ctrl->value = V4L2_MPEG_VIDEO_ENCODING_MPEG_2; - break; - case V4L2_CID_MPEG_VIDEO_ASPECT: - ctrl->value = params->vi_aspect; - break; - case V4L2_CID_MPEG_VIDEO_BITRATE: - ctrl->value = params->vi_bitrate * 1000; - break; - case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK: - ctrl->value = params->vi_bitrate_peak * 1000; - break; - case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: - ctrl->value = params->vi_bitrate_mode; - break; - default: - return -EINVAL; - } - return 0; -} - -static int handle_ctrl(int has_ac3, struct saa6752hs_mpeg_params *params, - struct v4l2_ext_control *ctrl, int set) -{ - int old = 0, new; - - new = ctrl->value; - switch (ctrl->id) { - case V4L2_CID_MPEG_STREAM_TYPE: - old = V4L2_MPEG_STREAM_TYPE_MPEG2_TS; - if (set && new != old) - return -ERANGE; - new = old; - break; - case V4L2_CID_MPEG_STREAM_PID_PMT: - old = params->ts_pid_pmt; - if (set && new > MPEG_PID_MAX) - return -ERANGE; - if (new > MPEG_PID_MAX) - new = MPEG_PID_MAX; - params->ts_pid_pmt = new; - break; - case V4L2_CID_MPEG_STREAM_PID_AUDIO: - old = params->ts_pid_audio; - if (set && new > MPEG_PID_MAX) - return -ERANGE; - if (new > MPEG_PID_MAX) - new = MPEG_PID_MAX; - params->ts_pid_audio = new; - break; - case V4L2_CID_MPEG_STREAM_PID_VIDEO: - old = params->ts_pid_video; - if (set && new > MPEG_PID_MAX) - return -ERANGE; - if (new > MPEG_PID_MAX) - new = MPEG_PID_MAX; - params->ts_pid_video = new; - break; - case V4L2_CID_MPEG_STREAM_PID_PCR: - old = params->ts_pid_pcr; - if (set && new > MPEG_PID_MAX) - return -ERANGE; - if (new > MPEG_PID_MAX) - new = MPEG_PID_MAX; - params->ts_pid_pcr = new; - break; - case V4L2_CID_MPEG_AUDIO_ENCODING: - old = params->au_encoding; - if (set && new != V4L2_MPEG_AUDIO_ENCODING_LAYER_2 && - (!has_ac3 || new != V4L2_MPEG_AUDIO_ENCODING_AC3)) - return -ERANGE; - params->au_encoding = new; - break; - case V4L2_CID_MPEG_AUDIO_L2_BITRATE: - old = params->au_l2_bitrate; - if (set && new != V4L2_MPEG_AUDIO_L2_BITRATE_256K && - new != V4L2_MPEG_AUDIO_L2_BITRATE_384K) - return -ERANGE; - if (new <= V4L2_MPEG_AUDIO_L2_BITRATE_256K) - new = V4L2_MPEG_AUDIO_L2_BITRATE_256K; - else - new = V4L2_MPEG_AUDIO_L2_BITRATE_384K; - params->au_l2_bitrate = new; - break; - case V4L2_CID_MPEG_AUDIO_AC3_BITRATE: - if (!has_ac3) - return -EINVAL; - old = params->au_ac3_bitrate; - if (set && new != V4L2_MPEG_AUDIO_AC3_BITRATE_256K && - new != V4L2_MPEG_AUDIO_AC3_BITRATE_384K) - return -ERANGE; - if (new <= V4L2_MPEG_AUDIO_AC3_BITRATE_256K) - new = V4L2_MPEG_AUDIO_AC3_BITRATE_256K; - else - new = V4L2_MPEG_AUDIO_AC3_BITRATE_384K; - params->au_ac3_bitrate = new; - break; - case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ: - old = V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000; - if (set && new != old) - return -ERANGE; - new = old; - break; - case V4L2_CID_MPEG_VIDEO_ENCODING: - old = V4L2_MPEG_VIDEO_ENCODING_MPEG_2; - if (set && new != old) - return -ERANGE; - new = old; - break; - case V4L2_CID_MPEG_VIDEO_ASPECT: - old = params->vi_aspect; - if (set && new != V4L2_MPEG_VIDEO_ASPECT_16x9 && - new != V4L2_MPEG_VIDEO_ASPECT_4x3) - return -ERANGE; - if (new != V4L2_MPEG_VIDEO_ASPECT_16x9) - new = V4L2_MPEG_VIDEO_ASPECT_4x3; - params->vi_aspect = new; - break; - case V4L2_CID_MPEG_VIDEO_BITRATE: - old = params->vi_bitrate * 1000; - new = 1000 * (new / 1000); - if (set && new > MPEG_VIDEO_TARGET_BITRATE_MAX * 1000) - return -ERANGE; - if (new > MPEG_VIDEO_TARGET_BITRATE_MAX * 1000) - new = MPEG_VIDEO_TARGET_BITRATE_MAX * 1000; - params->vi_bitrate = new / 1000; - break; - case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK: - old = params->vi_bitrate_peak * 1000; - new = 1000 * (new / 1000); - if (set && new > MPEG_VIDEO_TARGET_BITRATE_MAX * 1000) - return -ERANGE; - if (new > MPEG_VIDEO_TARGET_BITRATE_MAX * 1000) - new = MPEG_VIDEO_TARGET_BITRATE_MAX * 1000; - params->vi_bitrate_peak = new / 1000; - break; - case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: - old = params->vi_bitrate_mode; - params->vi_bitrate_mode = new; - break; - default: - return -EINVAL; - } - ctrl->value = new; - return 0; -} - - -static int saa6752hs_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qctrl) -{ - struct saa6752hs_state *h = to_state(sd); - struct saa6752hs_mpeg_params *params = &h->params; - int err; - - switch (qctrl->id) { - case V4L2_CID_MPEG_AUDIO_ENCODING: - return v4l2_ctrl_query_fill(qctrl, - V4L2_MPEG_AUDIO_ENCODING_LAYER_2, - h->has_ac3 ? V4L2_MPEG_AUDIO_ENCODING_AC3 : - V4L2_MPEG_AUDIO_ENCODING_LAYER_2, - 1, V4L2_MPEG_AUDIO_ENCODING_LAYER_2); - - case V4L2_CID_MPEG_AUDIO_L2_BITRATE: - return v4l2_ctrl_query_fill(qctrl, - V4L2_MPEG_AUDIO_L2_BITRATE_256K, - V4L2_MPEG_AUDIO_L2_BITRATE_384K, 1, - V4L2_MPEG_AUDIO_L2_BITRATE_256K); - - case V4L2_CID_MPEG_AUDIO_AC3_BITRATE: - if (!h->has_ac3) - return -EINVAL; - return v4l2_ctrl_query_fill(qctrl, - V4L2_MPEG_AUDIO_AC3_BITRATE_256K, - V4L2_MPEG_AUDIO_AC3_BITRATE_384K, 1, - V4L2_MPEG_AUDIO_AC3_BITRATE_256K); - - case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ: - return v4l2_ctrl_query_fill(qctrl, - V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000, - V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000, 1, - V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000); - - case V4L2_CID_MPEG_VIDEO_ENCODING: - return v4l2_ctrl_query_fill(qctrl, - V4L2_MPEG_VIDEO_ENCODING_MPEG_2, - V4L2_MPEG_VIDEO_ENCODING_MPEG_2, 1, - V4L2_MPEG_VIDEO_ENCODING_MPEG_2); - - case V4L2_CID_MPEG_VIDEO_ASPECT: - return v4l2_ctrl_query_fill(qctrl, - V4L2_MPEG_VIDEO_ASPECT_4x3, - V4L2_MPEG_VIDEO_ASPECT_16x9, 1, - V4L2_MPEG_VIDEO_ASPECT_4x3); - - case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK: - err = v4l2_ctrl_query_fill(qctrl, 0, 27000000, 1, 8000000); - if (err == 0 && - params->vi_bitrate_mode == - V4L2_MPEG_VIDEO_BITRATE_MODE_CBR) - qctrl->flags |= V4L2_CTRL_FLAG_INACTIVE; - return err; - - case V4L2_CID_MPEG_STREAM_TYPE: - return v4l2_ctrl_query_fill(qctrl, - V4L2_MPEG_STREAM_TYPE_MPEG2_TS, - V4L2_MPEG_STREAM_TYPE_MPEG2_TS, 1, - V4L2_MPEG_STREAM_TYPE_MPEG2_TS); - - case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: - return v4l2_ctrl_query_fill(qctrl, - V4L2_MPEG_VIDEO_BITRATE_MODE_VBR, - V4L2_MPEG_VIDEO_BITRATE_MODE_CBR, 1, - V4L2_MPEG_VIDEO_BITRATE_MODE_VBR); - case V4L2_CID_MPEG_VIDEO_BITRATE: - return v4l2_ctrl_query_fill(qctrl, 0, 27000000, 1, 6000000); - case V4L2_CID_MPEG_STREAM_PID_PMT: - return v4l2_ctrl_query_fill(qctrl, 0, (1 << 14) - 1, 1, 16); - case V4L2_CID_MPEG_STREAM_PID_AUDIO: - return v4l2_ctrl_query_fill(qctrl, 0, (1 << 14) - 1, 1, 260); - case V4L2_CID_MPEG_STREAM_PID_VIDEO: - return v4l2_ctrl_query_fill(qctrl, 0, (1 << 14) - 1, 1, 256); - case V4L2_CID_MPEG_STREAM_PID_PCR: - return v4l2_ctrl_query_fill(qctrl, 0, (1 << 14) - 1, 1, 259); - - default: - break; - } - return -EINVAL; -} - -static int saa6752hs_querymenu(struct v4l2_subdev *sd, struct v4l2_querymenu *qmenu) -{ - static const u32 mpeg_audio_encoding[] = { - V4L2_MPEG_AUDIO_ENCODING_LAYER_2, - V4L2_CTRL_MENU_IDS_END - }; - static const u32 mpeg_audio_ac3_encoding[] = { - V4L2_MPEG_AUDIO_ENCODING_LAYER_2, - V4L2_MPEG_AUDIO_ENCODING_AC3, - V4L2_CTRL_MENU_IDS_END - }; - static u32 mpeg_audio_l2_bitrate[] = { - V4L2_MPEG_AUDIO_L2_BITRATE_256K, - V4L2_MPEG_AUDIO_L2_BITRATE_384K, - V4L2_CTRL_MENU_IDS_END - }; - static u32 mpeg_audio_ac3_bitrate[] = { - V4L2_MPEG_AUDIO_AC3_BITRATE_256K, - V4L2_MPEG_AUDIO_AC3_BITRATE_384K, - V4L2_CTRL_MENU_IDS_END - }; - struct saa6752hs_state *h = to_state(sd); - struct v4l2_queryctrl qctrl; - int err; - - qctrl.id = qmenu->id; - err = saa6752hs_queryctrl(sd, &qctrl); - if (err) - return err; - switch (qmenu->id) { - case V4L2_CID_MPEG_AUDIO_L2_BITRATE: - return v4l2_ctrl_query_menu_valid_items(qmenu, - mpeg_audio_l2_bitrate); - case V4L2_CID_MPEG_AUDIO_AC3_BITRATE: - if (!h->has_ac3) - return -EINVAL; - return v4l2_ctrl_query_menu_valid_items(qmenu, - mpeg_audio_ac3_bitrate); - case V4L2_CID_MPEG_AUDIO_ENCODING: - return v4l2_ctrl_query_menu_valid_items(qmenu, - h->has_ac3 ? mpeg_audio_ac3_encoding : - mpeg_audio_encoding); - } - return v4l2_ctrl_query_menu(qmenu, &qctrl, NULL); -} - -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_do_ext_ctrls(struct v4l2_subdev *sd, struct v4l2_ext_controls *ctrls, int set) -{ - struct saa6752hs_state *h = to_state(sd); - struct saa6752hs_mpeg_params params; - int i; - - if (ctrls->ctrl_class != V4L2_CTRL_CLASS_MPEG) - return -EINVAL; - - params = h->params; - for (i = 0; i < ctrls->count; i++) { - int err = handle_ctrl(h->has_ac3, ¶ms, ctrls->controls + i, set); - - if (err) { - ctrls->error_idx = i; - return err; - } - } - if (set) - h->params = params; - return 0; -} - -static int saa6752hs_s_ext_ctrls(struct v4l2_subdev *sd, struct v4l2_ext_controls *ctrls) -{ - return saa6752hs_do_ext_ctrls(sd, ctrls, 1); -} - -static int saa6752hs_try_ext_ctrls(struct v4l2_subdev *sd, struct v4l2_ext_controls *ctrls) -{ - return saa6752hs_do_ext_ctrls(sd, ctrls, 0); -} - -static int saa6752hs_g_ext_ctrls(struct v4l2_subdev *sd, struct v4l2_ext_controls *ctrls) -{ - struct saa6752hs_state *h = to_state(sd); - int i; - - if (ctrls->ctrl_class != V4L2_CTRL_CLASS_MPEG) - return -EINVAL; - - for (i = 0; i < ctrls->count; i++) { - int err = get_ctrl(h->has_ac3, &h->params, ctrls->controls + i); - - if (err) { - ctrls->error_idx = i; - return err; - } - } - 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_s_mbus_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *f) -{ - struct saa6752hs_state *h = to_state(sd); - int dist_352, dist_480, dist_720; - - 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 - */ - - 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; - h->video_format = SAA6752HS_VF_D1; - } else if (dist_480 < dist_352) { - f->width = 480; - f->height = 576; - h->video_format = SAA6752HS_VF_2_3_D1; - } else { - f->width = 352; - if (abs(f->height - 576) < - abs(f->height - 288)) { - f->height = 576; - h->video_format = SAA6752HS_VF_1_2_D1; - } else { - f->height = 288; - h->video_format = SAA6752HS_VF_SIF; - } - } - f->field = V4L2_FIELD_INTERLACED; - f->colorspace = V4L2_COLORSPACE_SMPTE170M; - 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 int saa6752hs_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - struct saa6752hs_state *h = to_state(sd); - - return v4l2_chip_ident_i2c_client(client, - chip, h->chip, h->revision); -} - -/* ----------------------------------------------------------------------- */ - -static const struct v4l2_subdev_core_ops saa6752hs_core_ops = { - .g_chip_ident = saa6752hs_g_chip_ident, - .init = saa6752hs_init, - .queryctrl = saa6752hs_queryctrl, - .querymenu = saa6752hs_querymenu, - .g_ext_ctrls = saa6752hs_g_ext_ctrls, - .s_ext_ctrls = saa6752hs_s_ext_ctrls, - .try_ext_ctrls = saa6752hs_try_ext_ctrls, - .s_std = saa6752hs_s_std, -}; - -static const struct v4l2_subdev_video_ops saa6752hs_video_ops = { - .s_mbus_fmt = saa6752hs_s_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; - 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->chip = V4L2_IDENT_SAA6752HS; - h->revision = (data[8] << 8) | data[9]; - h->has_ac3 = 0; - if (h->revision == 0x0206) { - h->chip = V4L2_IDENT_SAA6752HS_AC3; - h->has_ac3 = 1; - v4l_info(client, "support AC-3\n"); - } - h->params = param_defaults; - 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); - 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); - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * --------------------------------------------------------------------------- - * Local variables: - * c-basic-offset: 8 - * End: - */ |