From 7c0141591fcf92ddc96a4ee04e35783a15bd68c8 Mon Sep 17 00:00:00 2001 From: Clemens Ladisch Date: Mon, 28 Jan 2008 08:36:55 +0100 Subject: [PATCH] [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 Signed-off-by: Jaroslav Kysela --- sound/pci/oxygen/oxygen.h | 2 ++ sound/pci/oxygen/oxygen_lib.c | 11 +++++++++- sound/pci/oxygen/virtuoso.c | 40 +++++++++++++++++++++++++++++++++++ 3 files changed, 52 insertions(+), 1 deletion(-) diff --git a/sound/pci/oxygen/oxygen.h b/sound/pci/oxygen/oxygen.h index e71c5349899..ad50fb8b206 100644 --- a/sound/pci/oxygen/oxygen.h +++ b/sound/pci/oxygen/oxygen.h @@ -66,6 +66,7 @@ struct oxygen { struct snd_pcm_substream *streams[PCM_COUNT]; struct snd_kcontrol *controls[CONTROL_COUNT]; struct work_struct spdif_input_bits_work; + struct work_struct gpio_work; wait_queue_head_t ac97_waitqueue; }; @@ -88,6 +89,7 @@ struct oxygen_model { void (*update_dac_mute)(struct oxygen *chip); void (*ac97_switch_hook)(struct oxygen *chip, unsigned int codec, unsigned int reg, int mute); + void (*gpio_changed)(struct oxygen *chip); size_t model_data_size; u8 dac_channels; u8 used_channels; diff --git a/sound/pci/oxygen/oxygen_lib.c b/sound/pci/oxygen/oxygen_lib.c index 540e56b7579..6eb36dd1147 100644 --- a/sound/pci/oxygen/oxygen_lib.c +++ b/sound/pci/oxygen/oxygen_lib.c @@ -85,7 +85,7 @@ static irqreturn_t oxygen_interrupt(int dummy, void *dev_id) } if (status & OXYGEN_INT_GPIO) - ; + schedule_work(&chip->gpio_work); if ((status & OXYGEN_INT_MIDI) && chip->midi) snd_mpu401_uart_interrupt(0, chip->midi->private_data); @@ -157,6 +157,14 @@ static void oxygen_spdif_input_bits_changed(struct work_struct *work) } } +static void oxygen_gpio_changed(struct work_struct *work) +{ + struct oxygen *chip = container_of(work, struct oxygen, gpio_work); + + if (chip->model->gpio_changed) + chip->model->gpio_changed(chip); +} + #ifdef CONFIG_PROC_FS static void oxygen_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) @@ -413,6 +421,7 @@ int __devinit oxygen_pci_probe(struct pci_dev *pci, int index, char *id, mutex_init(&chip->mutex); INIT_WORK(&chip->spdif_input_bits_work, oxygen_spdif_input_bits_changed); + INIT_WORK(&chip->gpio_work, oxygen_gpio_changed); init_waitqueue_head(&chip->ac97_waitqueue); err = pci_enable_device(pci); diff --git a/sound/pci/oxygen/virtuoso.c b/sound/pci/oxygen/virtuoso.c index 2e1a6996fa8..40e92f5cd69 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 | -- 2.41.1