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path: root/sound/pci/pcxhr/pcxhr.c
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Diffstat (limited to 'sound/pci/pcxhr/pcxhr.c')
-rw-r--r--sound/pci/pcxhr/pcxhr.c63
1 files changed, 63 insertions, 0 deletions
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 */