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linux/sound/pci/oxygen/oxygen_lib.c
Takashi Iwai 6ebc16e206 ALSA: oxygen: Fix the missing snd_card_free() call at probe error 
The previous cleanup with devres may lead to the incorrect release
orders at the probe error handling due to the devres's nature.  Until
we register the card, snd_card_free() has to be called at first for
releasing the stuff properly when the driver tries to manage and
release the stuff via card->private_free().

This patch fixes it by calling snd_card_free() on the error from the
probe callback using a new helper function.

Fixes: 596ae97ab0 ("ALSA: oxygen: Allocate resources with device-managed APIs")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220412102636.16000-35-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-04-12 17:58:40 +02:00

805 lines
24 KiB
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// SPDX-License-Identifier: GPL-2.0-only
/*
* C-Media CMI8788 driver - main driver module
*
* Copyright (c) Clemens Ladisch <clemens@ladisch.de>
*/
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/mutex.h>
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <sound/ac97_codec.h>
#include <sound/asoundef.h>
#include <sound/core.h>
#include <sound/info.h>
#include <sound/mpu401.h>
#include <sound/pcm.h>
#include "oxygen.h"
#include "cm9780.h"
MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
MODULE_DESCRIPTION("C-Media CMI8788 helper library");
MODULE_LICENSE("GPL v2");
#define DRIVER "oxygen"
static inline int oxygen_uart_input_ready(struct oxygen *chip)
{
return !(oxygen_read8(chip, OXYGEN_MPU401 + 1) & MPU401_RX_EMPTY);
}
static void oxygen_read_uart(struct oxygen *chip)
{
if (unlikely(!oxygen_uart_input_ready(chip))) {
/* no data, but read it anyway to clear the interrupt */
oxygen_read8(chip, OXYGEN_MPU401);
return;
}
do {
u8 data = oxygen_read8(chip, OXYGEN_MPU401);
if (data == MPU401_ACK)
continue;
if (chip->uart_input_count >= ARRAY_SIZE(chip->uart_input))
chip->uart_input_count = 0;
chip->uart_input[chip->uart_input_count++] = data;
} while (oxygen_uart_input_ready(chip));
if (chip->model.uart_input)
chip->model.uart_input(chip);
}
static irqreturn_t oxygen_interrupt(int dummy, void *dev_id)
{
struct oxygen *chip = dev_id;
unsigned int status, clear, elapsed_streams, i;
status = oxygen_read16(chip, OXYGEN_INTERRUPT_STATUS);
if (!status)
return IRQ_NONE;
spin_lock(&chip->reg_lock);
clear = status & (OXYGEN_CHANNEL_A |
OXYGEN_CHANNEL_B |
OXYGEN_CHANNEL_C |
OXYGEN_CHANNEL_SPDIF |
OXYGEN_CHANNEL_MULTICH |
OXYGEN_CHANNEL_AC97 |
OXYGEN_INT_SPDIF_IN_DETECT |
OXYGEN_INT_GPIO |
OXYGEN_INT_AC97);
if (clear) {
if (clear & OXYGEN_INT_SPDIF_IN_DETECT)
chip->interrupt_mask &= ~OXYGEN_INT_SPDIF_IN_DETECT;
oxygen_write16(chip, OXYGEN_INTERRUPT_MASK,
chip->interrupt_mask & ~clear);
oxygen_write16(chip, OXYGEN_INTERRUPT_MASK,
chip->interrupt_mask);
}
elapsed_streams = status & chip->pcm_running;
spin_unlock(&chip->reg_lock);
for (i = 0; i < PCM_COUNT; ++i)
if ((elapsed_streams & (1 << i)) && chip->streams[i])
snd_pcm_period_elapsed(chip->streams[i]);
if (status & OXYGEN_INT_SPDIF_IN_DETECT) {
spin_lock(&chip->reg_lock);
i = oxygen_read32(chip, OXYGEN_SPDIF_CONTROL);
if (i & (OXYGEN_SPDIF_SENSE_INT | OXYGEN_SPDIF_LOCK_INT |
OXYGEN_SPDIF_RATE_INT)) {
/* write the interrupt bit(s) to clear */
oxygen_write32(chip, OXYGEN_SPDIF_CONTROL, i);
schedule_work(&chip->spdif_input_bits_work);
}
spin_unlock(&chip->reg_lock);
}
if (status & OXYGEN_INT_GPIO)
schedule_work(&chip->gpio_work);
if (status & OXYGEN_INT_MIDI) {
if (chip->midi)
snd_mpu401_uart_interrupt(0, chip->midi->private_data);
else
oxygen_read_uart(chip);
}
if (status & OXYGEN_INT_AC97)
wake_up(&chip->ac97_waitqueue);
return IRQ_HANDLED;
}
static void oxygen_spdif_input_bits_changed(struct work_struct *work)
{
struct oxygen *chip = container_of(work, struct oxygen,
spdif_input_bits_work);
u32 reg;
/*
* This function gets called when there is new activity on the SPDIF
* input, or when we lose lock on the input signal, or when the rate
* changes.
*/
msleep(1);
spin_lock_irq(&chip->reg_lock);
reg = oxygen_read32(chip, OXYGEN_SPDIF_CONTROL);
if ((reg & (OXYGEN_SPDIF_SENSE_STATUS |
OXYGEN_SPDIF_LOCK_STATUS))
== OXYGEN_SPDIF_SENSE_STATUS) {
/*
* If we detect activity on the SPDIF input but cannot lock to
* a signal, the clock bit is likely to be wrong.
*/
reg ^= OXYGEN_SPDIF_IN_CLOCK_MASK;
oxygen_write32(chip, OXYGEN_SPDIF_CONTROL, reg);
spin_unlock_irq(&chip->reg_lock);
msleep(1);
spin_lock_irq(&chip->reg_lock);
reg = oxygen_read32(chip, OXYGEN_SPDIF_CONTROL);
if ((reg & (OXYGEN_SPDIF_SENSE_STATUS |
OXYGEN_SPDIF_LOCK_STATUS))
== OXYGEN_SPDIF_SENSE_STATUS) {
/* nothing detected with either clock; give up */
if ((reg & OXYGEN_SPDIF_IN_CLOCK_MASK)
== OXYGEN_SPDIF_IN_CLOCK_192) {
/*
* Reset clock to <= 96 kHz because this is
* more likely to be received next time.
*/
reg &= ~OXYGEN_SPDIF_IN_CLOCK_MASK;
reg |= OXYGEN_SPDIF_IN_CLOCK_96;
oxygen_write32(chip, OXYGEN_SPDIF_CONTROL, reg);
}
}
}
spin_unlock_irq(&chip->reg_lock);
if (chip->controls[CONTROL_SPDIF_INPUT_BITS]) {
spin_lock_irq(&chip->reg_lock);
chip->interrupt_mask |= OXYGEN_INT_SPDIF_IN_DETECT;
oxygen_write16(chip, OXYGEN_INTERRUPT_MASK,
chip->interrupt_mask);
spin_unlock_irq(&chip->reg_lock);
/*
* We don't actually know that any channel status bits have
* changed, but let's send a notification just to be sure.
*/
snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
&chip->controls[CONTROL_SPDIF_INPUT_BITS]->id);
}
}
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);
}
static void oxygen_proc_read(struct snd_info_entry *entry,
struct snd_info_buffer *buffer)
{
struct oxygen *chip = entry->private_data;
int i, j;
switch (oxygen_read8(chip, OXYGEN_REVISION) & OXYGEN_PACKAGE_ID_MASK) {
case OXYGEN_PACKAGE_ID_8786: i = '6'; break;
case OXYGEN_PACKAGE_ID_8787: i = '7'; break;
case OXYGEN_PACKAGE_ID_8788: i = '8'; break;
default: i = '?'; break;
}
snd_iprintf(buffer, "CMI878%c:\n", i);
for (i = 0; i < OXYGEN_IO_SIZE; i += 0x10) {
snd_iprintf(buffer, "%02x:", i);
for (j = 0; j < 0x10; ++j)
snd_iprintf(buffer, " %02x", oxygen_read8(chip, i + j));
snd_iprintf(buffer, "\n");
}
if (mutex_lock_interruptible(&chip->mutex) < 0)
return;
if (chip->has_ac97_0) {
snd_iprintf(buffer, "\nAC97:\n");
for (i = 0; i < 0x80; i += 0x10) {
snd_iprintf(buffer, "%02x:", i);
for (j = 0; j < 0x10; j += 2)
snd_iprintf(buffer, " %04x",
oxygen_read_ac97(chip, 0, i + j));
snd_iprintf(buffer, "\n");
}
}
if (chip->has_ac97_1) {
snd_iprintf(buffer, "\nAC97 2:\n");
for (i = 0; i < 0x80; i += 0x10) {
snd_iprintf(buffer, "%02x:", i);
for (j = 0; j < 0x10; j += 2)
snd_iprintf(buffer, " %04x",
oxygen_read_ac97(chip, 1, i + j));
snd_iprintf(buffer, "\n");
}
}
mutex_unlock(&chip->mutex);
if (chip->model.dump_registers)
chip->model.dump_registers(chip, buffer);
}
static void oxygen_proc_init(struct oxygen *chip)
{
snd_card_ro_proc_new(chip->card, "oxygen", chip, oxygen_proc_read);
}
static const struct pci_device_id *
oxygen_search_pci_id(struct oxygen *chip, const struct pci_device_id ids[])
{
u16 subdevice;
/*
* Make sure the EEPROM pins are available, i.e., not used for SPI.
* (This function is called before we initialize or use SPI.)
*/
oxygen_clear_bits8(chip, OXYGEN_FUNCTION,
OXYGEN_FUNCTION_ENABLE_SPI_4_5);
/*
* Read the subsystem device ID directly from the EEPROM, because the
* chip didn't if the first EEPROM word was overwritten.
*/
subdevice = oxygen_read_eeprom(chip, 2);
/* use default ID if EEPROM is missing */
if (subdevice == 0xffff && oxygen_read_eeprom(chip, 1) == 0xffff)
subdevice = 0x8788;
/*
* We use only the subsystem device ID for searching because it is
* unique even without the subsystem vendor ID, which may have been
* overwritten in the EEPROM.
*/
for (; ids->vendor; ++ids)
if (ids->subdevice == subdevice &&
ids->driver_data != BROKEN_EEPROM_DRIVER_DATA)
return ids;
return NULL;
}
static void oxygen_restore_eeprom(struct oxygen *chip,
const struct pci_device_id *id)
{
u16 eeprom_id;
eeprom_id = oxygen_read_eeprom(chip, 0);
if (eeprom_id != OXYGEN_EEPROM_ID &&
(eeprom_id != 0xffff || id->subdevice != 0x8788)) {
/*
* This function gets called only when a known card model has
* been detected, i.e., we know there is a valid subsystem
* product ID at index 2 in the EEPROM. Therefore, we have
* been able to deduce the correct subsystem vendor ID, and
* this is enough information to restore the original EEPROM
* contents.
*/
oxygen_write_eeprom(chip, 1, id->subvendor);
oxygen_write_eeprom(chip, 0, OXYGEN_EEPROM_ID);
oxygen_set_bits8(chip, OXYGEN_MISC,
OXYGEN_MISC_WRITE_PCI_SUBID);
pci_write_config_word(chip->pci, PCI_SUBSYSTEM_VENDOR_ID,
id->subvendor);
pci_write_config_word(chip->pci, PCI_SUBSYSTEM_ID,
id->subdevice);
oxygen_clear_bits8(chip, OXYGEN_MISC,
OXYGEN_MISC_WRITE_PCI_SUBID);
dev_info(chip->card->dev, "EEPROM ID restored\n");
}
}
static void configure_pcie_bridge(struct pci_dev *pci)
{
enum { PEX811X, PI7C9X110, XIO2001 };
static const struct pci_device_id bridge_ids[] = {
{ PCI_VDEVICE(PLX, 0x8111), .driver_data = PEX811X },
{ PCI_VDEVICE(PLX, 0x8112), .driver_data = PEX811X },
{ PCI_DEVICE(0x12d8, 0xe110), .driver_data = PI7C9X110 },
{ PCI_VDEVICE(TI, 0x8240), .driver_data = XIO2001 },
{ }
};
struct pci_dev *bridge;
const struct pci_device_id *id;
u32 tmp;
if (!pci->bus || !pci->bus->self)
return;
bridge = pci->bus->self;
id = pci_match_id(bridge_ids, bridge);
if (!id)
return;
switch (id->driver_data) {
case PEX811X: /* PLX PEX8111/PEX8112 PCIe/PCI bridge */
pci_read_config_dword(bridge, 0x48, &tmp);
tmp |= 1; /* enable blind prefetching */
tmp |= 1 << 11; /* enable beacon generation */
pci_write_config_dword(bridge, 0x48, tmp);
pci_write_config_dword(bridge, 0x84, 0x0c);
pci_read_config_dword(bridge, 0x88, &tmp);
tmp &= ~(7 << 27);
tmp |= 2 << 27; /* set prefetch size to 128 bytes */
pci_write_config_dword(bridge, 0x88, tmp);
break;
case PI7C9X110: /* Pericom PI7C9X110 PCIe/PCI bridge */
pci_read_config_dword(bridge, 0x40, &tmp);
tmp |= 1; /* park the PCI arbiter to the sound chip */
pci_write_config_dword(bridge, 0x40, tmp);
break;
case XIO2001: /* Texas Instruments XIO2001 PCIe/PCI bridge */
pci_read_config_dword(bridge, 0xe8, &tmp);
tmp &= ~0xf; /* request length limit: 64 bytes */
tmp &= ~(0xf << 8);
tmp |= 1 << 8; /* request count limit: one buffer */
pci_write_config_dword(bridge, 0xe8, tmp);
break;
}
}
static void oxygen_init(struct oxygen *chip)
{
unsigned int i;
chip->dac_routing = 1;
for (i = 0; i < 8; ++i)
chip->dac_volume[i] = chip->model.dac_volume_min;
chip->dac_mute = 1;
chip->spdif_playback_enable = 0;
chip->spdif_bits = OXYGEN_SPDIF_C | OXYGEN_SPDIF_ORIGINAL |
(IEC958_AES1_CON_PCM_CODER << OXYGEN_SPDIF_CATEGORY_SHIFT);
chip->spdif_pcm_bits = chip->spdif_bits;
if (!(oxygen_read8(chip, OXYGEN_REVISION) & OXYGEN_REVISION_2))
oxygen_set_bits8(chip, OXYGEN_MISC,
OXYGEN_MISC_PCI_MEM_W_1_CLOCK);
i = oxygen_read16(chip, OXYGEN_AC97_CONTROL);
chip->has_ac97_0 = (i & OXYGEN_AC97_CODEC_0) != 0;
chip->has_ac97_1 = (i & OXYGEN_AC97_CODEC_1) != 0;
oxygen_write8_masked(chip, OXYGEN_FUNCTION,
OXYGEN_FUNCTION_RESET_CODEC |
chip->model.function_flags,
OXYGEN_FUNCTION_RESET_CODEC |
OXYGEN_FUNCTION_2WIRE_SPI_MASK |
OXYGEN_FUNCTION_ENABLE_SPI_4_5);
oxygen_write8(chip, OXYGEN_DMA_STATUS, 0);
oxygen_write8(chip, OXYGEN_DMA_PAUSE, 0);
oxygen_write8(chip, OXYGEN_PLAY_CHANNELS,
OXYGEN_PLAY_CHANNELS_2 |
OXYGEN_DMA_A_BURST_8 |
OXYGEN_DMA_MULTICH_BURST_8);
oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, 0);
oxygen_write8_masked(chip, OXYGEN_MISC,
chip->model.misc_flags,
OXYGEN_MISC_WRITE_PCI_SUBID |
OXYGEN_MISC_REC_C_FROM_SPDIF |
OXYGEN_MISC_REC_B_FROM_AC97 |
OXYGEN_MISC_REC_A_FROM_MULTICH |
OXYGEN_MISC_MIDI);
oxygen_write8(chip, OXYGEN_REC_FORMAT,
(OXYGEN_FORMAT_16 << OXYGEN_REC_FORMAT_A_SHIFT) |
(OXYGEN_FORMAT_16 << OXYGEN_REC_FORMAT_B_SHIFT) |
(OXYGEN_FORMAT_16 << OXYGEN_REC_FORMAT_C_SHIFT));
oxygen_write8(chip, OXYGEN_PLAY_FORMAT,
(OXYGEN_FORMAT_16 << OXYGEN_SPDIF_FORMAT_SHIFT) |
(OXYGEN_FORMAT_16 << OXYGEN_MULTICH_FORMAT_SHIFT));
oxygen_write8(chip, OXYGEN_REC_CHANNELS, OXYGEN_REC_CHANNELS_2_2_2);
oxygen_write16(chip, OXYGEN_I2S_MULTICH_FORMAT,
OXYGEN_RATE_48000 |
chip->model.dac_i2s_format |
OXYGEN_I2S_MCLK(chip->model.dac_mclks) |
OXYGEN_I2S_BITS_16 |
OXYGEN_I2S_MASTER |
OXYGEN_I2S_BCLK_64);
if (chip->model.device_config & CAPTURE_0_FROM_I2S_1)
oxygen_write16(chip, OXYGEN_I2S_A_FORMAT,
OXYGEN_RATE_48000 |
chip->model.adc_i2s_format |
OXYGEN_I2S_MCLK(chip->model.adc_mclks) |
OXYGEN_I2S_BITS_16 |
OXYGEN_I2S_MASTER |
OXYGEN_I2S_BCLK_64);
else
oxygen_write16(chip, OXYGEN_I2S_A_FORMAT,
OXYGEN_I2S_MASTER |
OXYGEN_I2S_MUTE_MCLK);
if (chip->model.device_config & (CAPTURE_0_FROM_I2S_2 |
CAPTURE_2_FROM_I2S_2))
oxygen_write16(chip, OXYGEN_I2S_B_FORMAT,
OXYGEN_RATE_48000 |
chip->model.adc_i2s_format |
OXYGEN_I2S_MCLK(chip->model.adc_mclks) |
OXYGEN_I2S_BITS_16 |
OXYGEN_I2S_MASTER |
OXYGEN_I2S_BCLK_64);
else
oxygen_write16(chip, OXYGEN_I2S_B_FORMAT,
OXYGEN_I2S_MASTER |
OXYGEN_I2S_MUTE_MCLK);
if (chip->model.device_config & CAPTURE_3_FROM_I2S_3)
oxygen_write16(chip, OXYGEN_I2S_C_FORMAT,
OXYGEN_RATE_48000 |
chip->model.adc_i2s_format |
OXYGEN_I2S_MCLK(chip->model.adc_mclks) |
OXYGEN_I2S_BITS_16 |
OXYGEN_I2S_MASTER |
OXYGEN_I2S_BCLK_64);
else
oxygen_write16(chip, OXYGEN_I2S_C_FORMAT,
OXYGEN_I2S_MASTER |
OXYGEN_I2S_MUTE_MCLK);
oxygen_clear_bits32(chip, OXYGEN_SPDIF_CONTROL,
OXYGEN_SPDIF_OUT_ENABLE |
OXYGEN_SPDIF_LOOPBACK);
if (chip->model.device_config & CAPTURE_1_FROM_SPDIF)
oxygen_write32_masked(chip, OXYGEN_SPDIF_CONTROL,
OXYGEN_SPDIF_SENSE_MASK |
OXYGEN_SPDIF_LOCK_MASK |
OXYGEN_SPDIF_RATE_MASK |
OXYGEN_SPDIF_LOCK_PAR |
OXYGEN_SPDIF_IN_CLOCK_96,
OXYGEN_SPDIF_SENSE_MASK |
OXYGEN_SPDIF_LOCK_MASK |
OXYGEN_SPDIF_RATE_MASK |
OXYGEN_SPDIF_SENSE_PAR |
OXYGEN_SPDIF_LOCK_PAR |
OXYGEN_SPDIF_IN_CLOCK_MASK);
else
oxygen_clear_bits32(chip, OXYGEN_SPDIF_CONTROL,
OXYGEN_SPDIF_SENSE_MASK |
OXYGEN_SPDIF_LOCK_MASK |
OXYGEN_SPDIF_RATE_MASK);
oxygen_write32(chip, OXYGEN_SPDIF_OUTPUT_BITS, chip->spdif_bits);
oxygen_write16(chip, OXYGEN_2WIRE_BUS_STATUS,
OXYGEN_2WIRE_LENGTH_8 |
OXYGEN_2WIRE_INTERRUPT_MASK |
OXYGEN_2WIRE_SPEED_STANDARD);
oxygen_clear_bits8(chip, OXYGEN_MPU401_CONTROL, OXYGEN_MPU401_LOOPBACK);
oxygen_write8(chip, OXYGEN_GPI_INTERRUPT_MASK, 0);
oxygen_write16(chip, OXYGEN_GPIO_INTERRUPT_MASK, 0);
oxygen_write16(chip, OXYGEN_PLAY_ROUTING,
OXYGEN_PLAY_MULTICH_I2S_DAC |
OXYGEN_PLAY_SPDIF_SPDIF |
(0 << OXYGEN_PLAY_DAC0_SOURCE_SHIFT) |
(1 << OXYGEN_PLAY_DAC1_SOURCE_SHIFT) |
(2 << OXYGEN_PLAY_DAC2_SOURCE_SHIFT) |
(3 << OXYGEN_PLAY_DAC3_SOURCE_SHIFT));
oxygen_write8(chip, OXYGEN_REC_ROUTING,
OXYGEN_REC_A_ROUTE_I2S_ADC_1 |
OXYGEN_REC_B_ROUTE_I2S_ADC_2 |
OXYGEN_REC_C_ROUTE_SPDIF);
oxygen_write8(chip, OXYGEN_ADC_MONITOR, 0);
oxygen_write8(chip, OXYGEN_A_MONITOR_ROUTING,
(0 << OXYGEN_A_MONITOR_ROUTE_0_SHIFT) |
(1 << OXYGEN_A_MONITOR_ROUTE_1_SHIFT) |
(2 << OXYGEN_A_MONITOR_ROUTE_2_SHIFT) |
(3 << OXYGEN_A_MONITOR_ROUTE_3_SHIFT));
if (chip->has_ac97_0 | chip->has_ac97_1)
oxygen_write8(chip, OXYGEN_AC97_INTERRUPT_MASK,
OXYGEN_AC97_INT_READ_DONE |
OXYGEN_AC97_INT_WRITE_DONE);
else
oxygen_write8(chip, OXYGEN_AC97_INTERRUPT_MASK, 0);
oxygen_write32(chip, OXYGEN_AC97_OUT_CONFIG, 0);
oxygen_write32(chip, OXYGEN_AC97_IN_CONFIG, 0);
if (!(chip->has_ac97_0 | chip->has_ac97_1))
oxygen_set_bits16(chip, OXYGEN_AC97_CONTROL,
OXYGEN_AC97_CLOCK_DISABLE);
if (!chip->has_ac97_0) {
oxygen_set_bits16(chip, OXYGEN_AC97_CONTROL,
OXYGEN_AC97_NO_CODEC_0);
} else {
oxygen_write_ac97(chip, 0, AC97_RESET, 0);
msleep(1);
oxygen_ac97_set_bits(chip, 0, CM9780_GPIO_SETUP,
CM9780_GPIO0IO | CM9780_GPIO1IO);
oxygen_ac97_set_bits(chip, 0, CM9780_MIXER,
CM9780_BSTSEL | CM9780_STRO_MIC |
CM9780_MIX2FR | CM9780_PCBSW);
oxygen_ac97_set_bits(chip, 0, CM9780_JACK,
CM9780_RSOE | CM9780_CBOE |
CM9780_SSOE | CM9780_FROE |
CM9780_MIC2MIC | CM9780_LI2LI);
oxygen_write_ac97(chip, 0, AC97_MASTER, 0x0000);
oxygen_write_ac97(chip, 0, AC97_PC_BEEP, 0x8000);
oxygen_write_ac97(chip, 0, AC97_MIC, 0x8808);
oxygen_write_ac97(chip, 0, AC97_LINE, 0x0808);
oxygen_write_ac97(chip, 0, AC97_CD, 0x8808);
oxygen_write_ac97(chip, 0, AC97_VIDEO, 0x8808);
oxygen_write_ac97(chip, 0, AC97_AUX, 0x8808);
oxygen_write_ac97(chip, 0, AC97_REC_GAIN, 0x8000);
oxygen_write_ac97(chip, 0, AC97_CENTER_LFE_MASTER, 0x8080);
oxygen_write_ac97(chip, 0, AC97_SURROUND_MASTER, 0x8080);
oxygen_ac97_clear_bits(chip, 0, CM9780_GPIO_STATUS,
CM9780_GPO0);
/* power down unused ADCs and DACs */
oxygen_ac97_set_bits(chip, 0, AC97_POWERDOWN,
AC97_PD_PR0 | AC97_PD_PR1);
oxygen_ac97_set_bits(chip, 0, AC97_EXTENDED_STATUS,
AC97_EA_PRI | AC97_EA_PRJ | AC97_EA_PRK);
}
if (chip->has_ac97_1) {
oxygen_set_bits32(chip, OXYGEN_AC97_OUT_CONFIG,
OXYGEN_AC97_CODEC1_SLOT3 |
OXYGEN_AC97_CODEC1_SLOT4);
oxygen_write_ac97(chip, 1, AC97_RESET, 0);
msleep(1);
oxygen_write_ac97(chip, 1, AC97_MASTER, 0x0000);
oxygen_write_ac97(chip, 1, AC97_HEADPHONE, 0x8000);
oxygen_write_ac97(chip, 1, AC97_PC_BEEP, 0x8000);
oxygen_write_ac97(chip, 1, AC97_MIC, 0x8808);
oxygen_write_ac97(chip, 1, AC97_LINE, 0x8808);
oxygen_write_ac97(chip, 1, AC97_CD, 0x8808);
oxygen_write_ac97(chip, 1, AC97_VIDEO, 0x8808);
oxygen_write_ac97(chip, 1, AC97_AUX, 0x8808);
oxygen_write_ac97(chip, 1, AC97_PCM, 0x0808);
oxygen_write_ac97(chip, 1, AC97_REC_SEL, 0x0000);
oxygen_write_ac97(chip, 1, AC97_REC_GAIN, 0x0000);
oxygen_ac97_set_bits(chip, 1, 0x6a, 0x0040);
}
}
static void oxygen_shutdown(struct oxygen *chip)
{
spin_lock_irq(&chip->reg_lock);
chip->interrupt_mask = 0;
chip->pcm_running = 0;
oxygen_write16(chip, OXYGEN_DMA_STATUS, 0);
oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, 0);
spin_unlock_irq(&chip->reg_lock);
}
static void oxygen_card_free(struct snd_card *card)
{
struct oxygen *chip = card->private_data;
oxygen_shutdown(chip);
flush_work(&chip->spdif_input_bits_work);
flush_work(&chip->gpio_work);
chip->model.cleanup(chip);
mutex_destroy(&chip->mutex);
}
static int __oxygen_pci_probe(struct pci_dev *pci, int index, char *id,
struct module *owner,
const struct pci_device_id *ids,
int (*get_model)(struct oxygen *chip,
const struct pci_device_id *id
)
)
{
struct snd_card *card;
struct oxygen *chip;
const struct pci_device_id *pci_id;
int err;
err = snd_devm_card_new(&pci->dev, index, id, owner,
sizeof(*chip), &card);
if (err < 0)
return err;
chip = card->private_data;
chip->card = card;
chip->pci = pci;
chip->irq = -1;
spin_lock_init(&chip->reg_lock);
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 = pcim_enable_device(pci);
if (err < 0)
return err;
err = pci_request_regions(pci, DRIVER);
if (err < 0) {
dev_err(card->dev, "cannot reserve PCI resources\n");
return err;
}
if (!(pci_resource_flags(pci, 0) & IORESOURCE_IO) ||
pci_resource_len(pci, 0) < OXYGEN_IO_SIZE) {
dev_err(card->dev, "invalid PCI I/O range\n");
return -ENXIO;
}
chip->addr = pci_resource_start(pci, 0);
pci_id = oxygen_search_pci_id(chip, ids);
if (!pci_id)
return -ENODEV;
oxygen_restore_eeprom(chip, pci_id);
err = get_model(chip, pci_id);
if (err < 0)
return err;
if (chip->model.model_data_size) {
chip->model_data = devm_kzalloc(&pci->dev,
chip->model.model_data_size,
GFP_KERNEL);
if (!chip->model_data)
return -ENOMEM;
}
pci_set_master(pci);
card->private_free = oxygen_card_free;
configure_pcie_bridge(pci);
oxygen_init(chip);
chip->model.init(chip);
err = devm_request_irq(&pci->dev, pci->irq, oxygen_interrupt,
IRQF_SHARED, KBUILD_MODNAME, chip);
if (err < 0) {
dev_err(card->dev, "cannot grab interrupt %d\n", pci->irq);
return err;
}
chip->irq = pci->irq;
card->sync_irq = chip->irq;
strcpy(card->driver, chip->model.chip);
strcpy(card->shortname, chip->model.shortname);
sprintf(card->longname, "%s at %#lx, irq %i",
chip->model.longname, chip->addr, chip->irq);
strcpy(card->mixername, chip->model.chip);
snd_component_add(card, chip->model.chip);
err = oxygen_pcm_init(chip);
if (err < 0)
return err;
err = oxygen_mixer_init(chip);
if (err < 0)
return err;
if (chip->model.device_config & (MIDI_OUTPUT | MIDI_INPUT)) {
unsigned int info_flags =
MPU401_INFO_INTEGRATED | MPU401_INFO_IRQ_HOOK;
if (chip->model.device_config & MIDI_OUTPUT)
info_flags |= MPU401_INFO_OUTPUT;
if (chip->model.device_config & MIDI_INPUT)
info_flags |= MPU401_INFO_INPUT;
err = snd_mpu401_uart_new(card, 0, MPU401_HW_CMIPCI,
chip->addr + OXYGEN_MPU401,
info_flags, -1, &chip->midi);
if (err < 0)
return err;
}
oxygen_proc_init(chip);
spin_lock_irq(&chip->reg_lock);
if (chip->model.device_config & CAPTURE_1_FROM_SPDIF)
chip->interrupt_mask |= OXYGEN_INT_SPDIF_IN_DETECT;
if (chip->has_ac97_0 | chip->has_ac97_1)
chip->interrupt_mask |= OXYGEN_INT_AC97;
oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, chip->interrupt_mask);
spin_unlock_irq(&chip->reg_lock);
err = snd_card_register(card);
if (err < 0)
return err;
pci_set_drvdata(pci, card);
return 0;
}
int oxygen_pci_probe(struct pci_dev *pci, int index, char *id,
struct module *owner,
const struct pci_device_id *ids,
int (*get_model)(struct oxygen *chip,
const struct pci_device_id *id))
{
return snd_card_free_on_error(&pci->dev,
__oxygen_pci_probe(pci, index, id, owner, ids, get_model));
}
EXPORT_SYMBOL(oxygen_pci_probe);
#ifdef CONFIG_PM_SLEEP
static int oxygen_pci_suspend(struct device *dev)
{
struct snd_card *card = dev_get_drvdata(dev);
struct oxygen *chip = card->private_data;
unsigned int saved_interrupt_mask;
snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
if (chip->model.suspend)
chip->model.suspend(chip);
spin_lock_irq(&chip->reg_lock);
saved_interrupt_mask = chip->interrupt_mask;
chip->interrupt_mask = 0;
oxygen_write16(chip, OXYGEN_DMA_STATUS, 0);
oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, 0);
spin_unlock_irq(&chip->reg_lock);
flush_work(&chip->spdif_input_bits_work);
flush_work(&chip->gpio_work);
chip->interrupt_mask = saved_interrupt_mask;
return 0;
}
static const u32 registers_to_restore[OXYGEN_IO_SIZE / 32] = {
0xffffffff, 0x00ff077f, 0x00011d08, 0x007f00ff,
0x00300000, 0x00000fe4, 0x0ff7001f, 0x00000000
};
static const u32 ac97_registers_to_restore[2][0x40 / 32] = {
{ 0x18284fa2, 0x03060000 },
{ 0x00007fa6, 0x00200000 }
};
static inline int is_bit_set(const u32 *bitmap, unsigned int bit)
{
return bitmap[bit / 32] & (1 << (bit & 31));
}
static void oxygen_restore_ac97(struct oxygen *chip, unsigned int codec)
{
unsigned int i;
oxygen_write_ac97(chip, codec, AC97_RESET, 0);
msleep(1);
for (i = 1; i < 0x40; ++i)
if (is_bit_set(ac97_registers_to_restore[codec], i))
oxygen_write_ac97(chip, codec, i * 2,
chip->saved_ac97_registers[codec][i]);
}
static int oxygen_pci_resume(struct device *dev)
{
struct snd_card *card = dev_get_drvdata(dev);
struct oxygen *chip = card->private_data;
unsigned int i;
oxygen_write16(chip, OXYGEN_DMA_STATUS, 0);
oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, 0);
for (i = 0; i < OXYGEN_IO_SIZE; ++i)
if (is_bit_set(registers_to_restore, i))
oxygen_write8(chip, i, chip->saved_registers._8[i]);
if (chip->has_ac97_0)
oxygen_restore_ac97(chip, 0);
if (chip->has_ac97_1)
oxygen_restore_ac97(chip, 1);
if (chip->model.resume)
chip->model.resume(chip);
oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, chip->interrupt_mask);
snd_power_change_state(card, SNDRV_CTL_POWER_D0);
return 0;
}
SIMPLE_DEV_PM_OPS(oxygen_pci_pm, oxygen_pci_suspend, oxygen_pci_resume);
EXPORT_SYMBOL(oxygen_pci_pm);
#endif /* CONFIG_PM_SLEEP */
void oxygen_pci_shutdown(struct pci_dev *pci)
{
struct snd_card *card = pci_get_drvdata(pci);
struct oxygen *chip = card->private_data;
oxygen_shutdown(chip);
chip->model.cleanup(chip);
}
EXPORT_SYMBOL(oxygen_pci_shutdown);
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