diff options
Diffstat (limited to 'sound/pci/pcxhr/pcxhr.c')
| -rw-r--r-- | sound/pci/pcxhr/pcxhr.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/sound/pci/pcxhr/pcxhr.c b/sound/pci/pcxhr/pcxhr.c index 27cf2c2..ca89106 100644 --- a/sound/pci/pcxhr/pcxhr.c +++ b/sound/pci/pcxhr/pcxhr.c @@ -1334,6 +1334,40 @@ static void pcxhr_proc_sync(struct snd_info_entry *entry, snd_iprintf(buffer, "\n"); } +static void pcxhr_proc_gpio_read(struct snd_info_entry *entry, + struct snd_info_buffer *buffer) +{ + struct snd_pcxhr *chip = entry->private_data; + struct pcxhr_mgr *mgr = chip->mgr; + /* commands available when embedded DSP is running */ + if (mgr->dsp_loaded & (1 << PCXHR_FIRMWARE_DSP_MAIN_INDEX)) { + /* gpio ports on stereo boards only available */ + int value = 0; + hr222_read_gpio(mgr, 1, &value); /* GPI */ + snd_iprintf(buffer, "GPI: 0x%x\n", value); + hr222_read_gpio(mgr, 0, &value); /* GP0 */ + snd_iprintf(buffer, "GPO: 0x%x\n", value); + } else + snd_iprintf(buffer, "no firmware loaded\n"); + snd_iprintf(buffer, "\n"); +} +static void pcxhr_proc_gpo_write(struct snd_info_entry *entry, + struct snd_info_buffer *buffer) +{ + struct snd_pcxhr *chip = entry->private_data; + struct pcxhr_mgr *mgr = chip->mgr; + char line[64]; + int value; + /* commands available when embedded DSP is running */ + if (!(mgr->dsp_loaded & (1 << PCXHR_FIRMWARE_DSP_MAIN_INDEX))) + return; + while (!snd_info_get_line(buffer, line, sizeof(line))) { + if (sscanf(line, "GPO: 0x%x", &value) != 1) + continue; + hr222_write_gpo(mgr, value); /* GP0 */ + } +} + static void __devinit pcxhr_proc_init(struct snd_pcxhr *chip) { struct snd_info_entry *entry; @@ -1342,6 +1376,13 @@ static void __devinit pcxhr_proc_init(struct snd_pcxhr *chip) snd_info_set_text_ops(entry, chip, pcxhr_proc_info); if (! snd_card_proc_new(chip->card, "sync", &entry)) snd_info_set_text_ops(entry, chip, pcxhr_proc_sync); + /* gpio available on stereo sound cards only */ + if (chip->mgr->is_hr_stereo && + !snd_card_proc_new(chip->card, "gpio", &entry)) { + snd_info_set_text_ops(entry, chip, pcxhr_proc_gpio_read); + entry->c.text.write = pcxhr_proc_gpo_write; + entry->mode |= S_IWUSR; + } } /* end of proc interface */ |
