From fdfbaf69e0b9d6843c0da6501caf4ecacec0f775 Mon Sep 17 00:00:00 2001 From: Markus Bollinger Date: Wed, 20 Jun 2012 08:34:40 +0200 Subject: [PATCH] ALSA: pcxhr: Add LTC support add LTC (linear timecode) read function via proc interface to the pcxhr driver Signed-off-by: Markus Bollinger Signed-off-by: Takashi Iwai --- sound/pci/pcxhr/pcxhr.c | 63 +++++++++++++++++++++++++++++++++++ sound/pci/pcxhr/pcxhr.h | 1 + sound/pci/pcxhr/pcxhr_core.c | 4 +++ sound/pci/pcxhr/pcxhr_core.h | 4 ++- sound/pci/pcxhr/pcxhr_mix22.c | 11 ++++++ sound/pci/pcxhr/pcxhr_mix22.h | 1 + 6 files changed, 83 insertions(+), 1 deletion(-) diff --git a/sound/pci/pcxhr/pcxhr.c b/sound/pci/pcxhr/pcxhr.c index 0435f45e9513..e3ac1f768ff6 100644 --- a/sound/pci/pcxhr/pcxhr.c +++ b/sound/pci/pcxhr/pcxhr.c @@ -1368,6 +1368,67 @@ static void pcxhr_proc_gpo_write(struct snd_info_entry *entry, } } +/* Access to the results of the CMD_GET_TIME_CODE RMH */ +#define TIME_CODE_VALID_MASK 0x00800000 +#define TIME_CODE_NEW_MASK 0x00400000 +#define TIME_CODE_BACK_MASK 0x00200000 +#define TIME_CODE_WAIT_MASK 0x00100000 + +/* Values for the CMD_MANAGE_SIGNAL RMH */ +#define MANAGE_SIGNAL_TIME_CODE 0x01 +#define MANAGE_SIGNAL_MIDI 0x02 + +/* linear time code read proc*/ +static void pcxhr_proc_ltc(struct snd_info_entry *entry, + struct snd_info_buffer *buffer) +{ + struct snd_pcxhr *chip = entry->private_data; + struct pcxhr_mgr *mgr = chip->mgr; + struct pcxhr_rmh rmh; + unsigned int ltcHrs, ltcMin, ltcSec, ltcFrm; + int err; + /* commands available when embedded DSP is running */ + if (!(mgr->dsp_loaded & (1 << PCXHR_FIRMWARE_DSP_MAIN_INDEX))) { + snd_iprintf(buffer, "no firmware loaded\n"); + return; + } + if (!mgr->capture_ltc) { + pcxhr_init_rmh(&rmh, CMD_MANAGE_SIGNAL); + rmh.cmd[0] |= MANAGE_SIGNAL_TIME_CODE; + err = pcxhr_send_msg(mgr, &rmh); + if (err) { + snd_iprintf(buffer, "ltc not activated (%d)\n", err); + return; + } + if (mgr->is_hr_stereo) + hr222_manage_timecode(mgr, 1); + else + pcxhr_write_io_num_reg_cont(mgr, REG_CONT_VALSMPTE, + REG_CONT_VALSMPTE, NULL); + mgr->capture_ltc = 1; + } + pcxhr_init_rmh(&rmh, CMD_GET_TIME_CODE); + err = pcxhr_send_msg(mgr, &rmh); + if (err) { + snd_iprintf(buffer, "ltc read error (err=%d)\n", err); + return ; + } + ltcHrs = 10*((rmh.stat[0] >> 8) & 0x3) + (rmh.stat[0] & 0xf); + ltcMin = 10*((rmh.stat[1] >> 16) & 0x7) + ((rmh.stat[1] >> 8) & 0xf); + ltcSec = 10*(rmh.stat[1] & 0x7) + ((rmh.stat[2] >> 16) & 0xf); + ltcFrm = 10*((rmh.stat[2] >> 8) & 0x3) + (rmh.stat[2] & 0xf); + + snd_iprintf(buffer, "timecode: %02u:%02u:%02u-%02u\n", + ltcHrs, ltcMin, ltcSec, ltcFrm); + snd_iprintf(buffer, "raw: 0x%04x%06x%06x\n", rmh.stat[0] & 0x00ffff, + rmh.stat[1] & 0xffffff, rmh.stat[2] & 0xffffff); + /*snd_iprintf(buffer, "dsp ref time: 0x%06x%06x\n", + rmh.stat[3] & 0xffffff, rmh.stat[4] & 0xffffff);*/ + if (!(rmh.stat[0] & TIME_CODE_VALID_MASK)) { + snd_iprintf(buffer, "warning: linear timecode not valid\n"); + } +} + static void __devinit pcxhr_proc_init(struct snd_pcxhr *chip) { struct snd_info_entry *entry; @@ -1383,6 +1444,8 @@ static void __devinit pcxhr_proc_init(struct snd_pcxhr *chip) entry->c.text.write = pcxhr_proc_gpo_write; entry->mode |= S_IWUSR; } + if (!snd_card_proc_new(chip->card, "ltc", &entry)) + snd_info_set_text_ops(entry, chip, pcxhr_proc_ltc); } /* end of proc interface */ diff --git a/sound/pci/pcxhr/pcxhr.h b/sound/pci/pcxhr/pcxhr.h index bda776c49884..a4c602c45173 100644 --- a/sound/pci/pcxhr/pcxhr.h +++ b/sound/pci/pcxhr/pcxhr.h @@ -103,6 +103,7 @@ struct pcxhr_mgr { unsigned int board_has_mic:1; /* if 1 the board has microphone input */ unsigned int board_aes_in_192k:1;/* if 1 the aes input plugs do support 192kHz */ unsigned int mono_capture:1; /* if 1 the board does mono capture */ + unsigned int capture_ltc:1; /* if 1 the board captures LTC input */ struct snd_dma_buffer hostport; diff --git a/sound/pci/pcxhr/pcxhr_core.c b/sound/pci/pcxhr/pcxhr_core.c index 841703b5c52a..b33db1e006e7 100644 --- a/sound/pci/pcxhr/pcxhr_core.c +++ b/sound/pci/pcxhr/pcxhr_core.c @@ -504,6 +504,8 @@ static struct pcxhr_cmd_info pcxhr_dsp_cmds[] = { [CMD_FORMAT_STREAM_IN] = { 0x870000, 0, RMH_SSIZE_FIXED }, [CMD_STREAM_SAMPLE_COUNT] = { 0x902000, 2, RMH_SSIZE_FIXED }, [CMD_AUDIO_LEVEL_ADJUST] = { 0xc22000, 0, RMH_SSIZE_FIXED }, +[CMD_GET_TIME_CODE] = { 0x060000, 5, RMH_SSIZE_FIXED }, +[CMD_MANAGE_SIGNAL] = { 0x0f0000, 0, RMH_SSIZE_FIXED }, }; #ifdef CONFIG_SND_DEBUG_VERBOSE @@ -533,6 +535,8 @@ static char* cmd_names[] = { [CMD_FORMAT_STREAM_IN] = "CMD_FORMAT_STREAM_IN", [CMD_STREAM_SAMPLE_COUNT] = "CMD_STREAM_SAMPLE_COUNT", [CMD_AUDIO_LEVEL_ADJUST] = "CMD_AUDIO_LEVEL_ADJUST", +[CMD_GET_TIME_CODE] = "CMD_GET_TIME_CODE", +[CMD_MANAGE_SIGNAL] = "CMD_MANAGE_SIGNAL", }; #endif diff --git a/sound/pci/pcxhr/pcxhr_core.h b/sound/pci/pcxhr/pcxhr_core.h index be0173796cdb..a81ab6b811e7 100644 --- a/sound/pci/pcxhr/pcxhr_core.h +++ b/sound/pci/pcxhr/pcxhr_core.h @@ -79,6 +79,8 @@ enum { CMD_FORMAT_STREAM_IN, /* cmd_len >= 4 stat_len = 0 */ CMD_STREAM_SAMPLE_COUNT, /* cmd_len = 2 stat_len = (2 * nb_stream) */ CMD_AUDIO_LEVEL_ADJUST, /* cmd_len = 3 stat_len = 0 */ + CMD_GET_TIME_CODE, /* cmd_len = 1 stat_len = 5 */ + CMD_MANAGE_SIGNAL, /* cmd_len = 1 stat_len = 0 */ CMD_LAST_INDEX }; @@ -116,7 +118,7 @@ int pcxhr_send_msg(struct pcxhr_mgr *mgr, struct pcxhr_rmh *rmh); #define IO_NUM_REG_OUT_ANA_LEVEL 20 #define IO_NUM_REG_IN_ANA_LEVEL 21 - +#define REG_CONT_VALSMPTE 0x000800 #define REG_CONT_UNMUTE_INPUTS 0x020000 /* parameters used with register IO_NUM_REG_STATUS */ diff --git a/sound/pci/pcxhr/pcxhr_mix22.c b/sound/pci/pcxhr/pcxhr_mix22.c index 1cb82c0a9cb3..84fe57626eba 100644 --- a/sound/pci/pcxhr/pcxhr_mix22.c +++ b/sound/pci/pcxhr/pcxhr_mix22.c @@ -53,6 +53,7 @@ #define PCXHR_DSP_RESET_DSP 0x01 #define PCXHR_DSP_RESET_MUTE 0x02 #define PCXHR_DSP_RESET_CODEC 0x08 +#define PCXHR_DSP_RESET_SMPTE 0x10 #define PCXHR_DSP_RESET_GPO_OFFSET 5 #define PCXHR_DSP_RESET_GPO_MASK 0x60 @@ -527,6 +528,16 @@ int hr222_write_gpo(struct pcxhr_mgr *mgr, int value) return 0; } +int hr222_manage_timecode(struct pcxhr_mgr *mgr, int enable) +{ + if (enable) + mgr->dsp_reset |= PCXHR_DSP_RESET_SMPTE; + else + mgr->dsp_reset &= ~PCXHR_DSP_RESET_SMPTE; + + PCXHR_OUTPB(mgr, PCXHR_DSP_RESET, mgr->dsp_reset); + return 0; +} int hr222_update_analog_audio_level(struct snd_pcxhr *chip, int is_capture, int channel) diff --git a/sound/pci/pcxhr/pcxhr_mix22.h b/sound/pci/pcxhr/pcxhr_mix22.h index 5a37a0007e8f..5971b9933f41 100644 --- a/sound/pci/pcxhr/pcxhr_mix22.h +++ b/sound/pci/pcxhr/pcxhr_mix22.h @@ -34,6 +34,7 @@ int hr222_get_external_clock(struct pcxhr_mgr *mgr, int hr222_read_gpio(struct pcxhr_mgr *mgr, int is_gpi, int *value); int hr222_write_gpo(struct pcxhr_mgr *mgr, int value); +int hr222_manage_timecode(struct pcxhr_mgr *mgr, int enable); #define HR222_LINE_PLAYBACK_LEVEL_MIN 0 /* -25.5 dB */ #define HR222_LINE_PLAYBACK_ZERO_LEVEL 51 /* 0.0 dB */ -- 2.39.5