diff options
| author | Clemens Ladisch <clemens@ladisch.de> | 2008-01-28 08:36:55 +0100 |
|---|---|---|
| committer | Jaroslav Kysela <perex@perex.cz> | 2008-01-31 17:30:18 +0100 |
| commit | 7c0141591fcf92ddc96a4ee04e35783a15bd68c8 (patch) | |
| tree | 22b2ce1e76144b5ff0d0fb420668e18820f8adf2 /sound/pci/oxygen/virtuoso.c | |
| parent | 5f7b9b457751efc9f3ad120d0ebdb19fe753e9d0 (diff) | |
| download | kernel_samsung_crespo-7c0141591fcf92ddc96a4ee04e35783a15bd68c8.zip kernel_samsung_crespo-7c0141591fcf92ddc96a4ee04e35783a15bd68c8.tar.gz kernel_samsung_crespo-7c0141591fcf92ddc96a4ee04e35783a15bd68c8.tar.bz2 | |
[ALSA] virtuoso: monitor external power on D2X
On the Xonar D2X, monitor the GPIO pin that indicates whether external
power is present.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Diffstat (limited to 'sound/pci/oxygen/virtuoso.c')
| -rw-r--r-- | sound/pci/oxygen/virtuoso.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/sound/pci/oxygen/virtuoso.c b/sound/pci/oxygen/virtuoso.c index 2e1a699..40e92f5 100644 --- a/sound/pci/oxygen/virtuoso.c +++ b/sound/pci/oxygen/virtuoso.c @@ -136,6 +136,11 @@ MODULE_DEVICE_TABLE(pci, xonar_ids); /* register 23 */ #define PCM1796_ID_MASK 0x1f +struct xonar_data { + u8 is_d2x; + u8 has_power; +}; + static void pcm1796_write(struct oxygen *chip, unsigned int codec, u8 reg, u8 value) { @@ -153,8 +158,11 @@ static void pcm1796_write(struct oxygen *chip, unsigned int codec, static void xonar_init(struct oxygen *chip) { + struct xonar_data *data = chip->model_data; unsigned int i; + data->is_d2x = chip->pci->subsystem_device == 0x82b7; + for (i = 0; i < 4; ++i) { pcm1796_write(chip, i, 18, PCM1796_FMT_24_LJUST | PCM1796_ATLD); pcm1796_write(chip, i, 19, PCM1796_FLT_SHARP | PCM1796_ATS_1); @@ -169,6 +177,15 @@ static void xonar_init(struct oxygen *chip) oxygen_write16_masked(chip, OXYGEN_GPIO_DATA, GPIO_CS5381_M_SINGLE, GPIO_CS5381_M_MASK | GPIO_ALT); + if (data->is_d2x) { + oxygen_clear_bits16(chip, OXYGEN_GPIO_CONTROL, + GPIO_EXT_POWER); + oxygen_set_bits16(chip, OXYGEN_GPIO_INTERRUPT_MASK, + GPIO_EXT_POWER); + chip->interrupt_mask |= OXYGEN_INT_GPIO; + data->has_power = !!(oxygen_read16(chip, OXYGEN_GPIO_DATA) + & GPIO_EXT_POWER); + } oxygen_ac97_set_bits(chip, 0, CM9780_JACK, CM9780_FMIC2MIC); oxygen_ac97_clear_bits(chip, 0, CM9780_GPIO_STATUS, GPIO_LINE_MUTE); msleep(300); @@ -234,6 +251,27 @@ static void set_cs5381_params(struct oxygen *chip, value, GPIO_CS5381_M_MASK); } +static void xonar_gpio_changed(struct oxygen *chip) +{ + struct xonar_data *data = chip->model_data; + u8 has_power; + + if (!data->is_d2x) + return; + has_power = !!(oxygen_read16(chip, OXYGEN_GPIO_DATA) + & GPIO_EXT_POWER); + if (has_power != data->has_power) { + data->has_power = has_power; + if (has_power) { + snd_printk(KERN_NOTICE "power restored\n"); + } else { + snd_printk(KERN_CRIT + "Hey! Don't unplug the power cable!\n"); + /* TODO: stop PCMs */ + } + } +} + static void mute_ac97_ctl(struct oxygen *chip, unsigned int control) { unsigned int index = chip->controls[control]->private_value & 0xff; @@ -360,6 +398,8 @@ static const struct oxygen_model model_xonar = { .update_dac_volume = update_pcm1796_volume, .update_dac_mute = update_pcm1796_mute, .ac97_switch_hook = xonar_ac97_switch_hook, + .gpio_changed = xonar_gpio_changed, + .model_data_size = sizeof(struct xonar_data), .dac_channels = 8, .used_channels = OXYGEN_CHANNEL_B | OXYGEN_CHANNEL_C | |