--- /dev/null
+/*
+ * C-Media CMI8788 driver - main driver module
+ *
+ * Copyright (c) Clemens Ladisch <clemens@ladisch.de>
+ *
+ *
+ * This driver is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2.
+ *
+ * This driver is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this driver; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#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);
+}
+
+#ifdef CONFIG_PROC_FS
+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)
+{
+ struct snd_info_entry *entry;
+
+ if (!snd_card_proc_new(chip->card, "oxygen", &entry))
+ snd_info_set_text_ops(entry, chip, oxygen_proc_read);
+}
+#else
+#define oxygen_proc_init(chip)
+#endif
+
+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 = 1;
+ 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);
+ if (chip->irq >= 0)
+ free_irq(chip->irq, chip);
+ flush_work(&chip->spdif_input_bits_work);
+ flush_work(&chip->gpio_work);
+ chip->model.cleanup(chip);
+ kfree(chip->model_data);
+ mutex_destroy(&chip->mutex);
+ pci_release_regions(chip->pci);
+ pci_disable_device(chip->pci);
+}
+
+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_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 = pci_enable_device(pci);
+ if (err < 0)
+ goto err_card;
+
+ err = pci_request_regions(pci, DRIVER);
+ if (err < 0) {
+ dev_err(card->dev, "cannot reserve PCI resources\n");
+ goto err_pci_enable;
+ }
+
+ 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");
+ err = -ENXIO;
+ goto err_pci_regions;
+ }
+ chip->addr = pci_resource_start(pci, 0);
+
+ pci_id = oxygen_search_pci_id(chip, ids);
+ if (!pci_id) {
+ err = -ENODEV;
+ goto err_pci_regions;
+ }
+ oxygen_restore_eeprom(chip, pci_id);
+ err = get_model(chip, pci_id);
+ if (err < 0)
+ goto err_pci_regions;
+
+ if (chip->model.model_data_size) {
+ chip->model_data = kzalloc(chip->model.model_data_size,
+ GFP_KERNEL);
+ if (!chip->model_data) {
+ err = -ENOMEM;
+ goto err_pci_regions;
+ }
+ }
+
+ pci_set_master(pci);
+ card->private_free = oxygen_card_free;
+
+ configure_pcie_bridge(pci);
+ oxygen_init(chip);
+ chip->model.init(chip);
+
+ err = request_irq(pci->irq, oxygen_interrupt, IRQF_SHARED,
+ KBUILD_MODNAME, chip);
+ if (err < 0) {
+ dev_err(card->dev, "cannot grab interrupt %d\n", pci->irq);
+ goto err_card;
+ }
+ chip->irq = pci->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)
+ goto err_card;
+
+ err = oxygen_mixer_init(chip);
+ if (err < 0)
+ goto err_card;
+
+ 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)
+ goto err_card;
+ }
+
+ 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)
+ goto err_card;
+
+ pci_set_drvdata(pci, card);
+ return 0;
+
+err_pci_regions:
+ pci_release_regions(pci);
+err_pci_enable:
+ pci_disable_device(pci);
+err_card:
+ snd_card_free(card);
+ return err;
+}
+EXPORT_SYMBOL(oxygen_pci_probe);
+
+void oxygen_pci_remove(struct pci_dev *pci)
+{
+ snd_card_free(pci_get_drvdata(pci));
+}
+EXPORT_SYMBOL(oxygen_pci_remove);
+
+#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 i, saved_interrupt_mask;
+
+ snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
+
+ for (i = 0; i < PCM_COUNT; ++i)
+ snd_pcm_suspend(chip->streams[i]);
+
+ 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);
+
+ synchronize_irq(chip->irq);
+ 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);
Code Review / kvmfornfv.git / blobdiff