--- /dev/null
+/*
+ * als300.c - driver for Avance Logic ALS300/ALS300+ soundcards.
+ * Copyright (C) 2005 by Ash Willis <ashwillis@programmer.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * TODO
+ * 4 channel playback for ALS300+
+ * gameport
+ * mpu401
+ * opl3
+ *
+ * NOTES
+ * The BLOCK_COUNTER registers for the ALS300(+) return a figure related to
+ * the position in the current period, NOT the whole buffer. It is important
+ * to know which period we are in so we can calculate the correct pointer.
+ * This is why we always use 2 periods. We can then use a flip-flop variable
+ * to keep track of what period we are in.
+ */
+
+#include <sound/driver.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/moduleparam.h>
+#include <linux/pci.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+
+#include <asm/io.h>
+
+#include <sound/core.h>
+#include <sound/control.h>
+#include <sound/initval.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/ac97_codec.h>
+#include <sound/opl3.h>
+
+/* snd_als300_set_irq_flag */
+#define IRQ_DISABLE 0
+#define IRQ_ENABLE 1
+
+/* I/O port layout */
+#define AC97_ACCESS 0x00
+#define AC97_READ 0x04
+#define AC97_STATUS 0x06
+#define AC97_DATA_AVAIL (1<<6)
+#define AC97_BUSY (1<<7)
+#define ALS300_IRQ_STATUS 0x07 /* ALS300 Only */
+#define IRQ_PLAYBACK (1<<3)
+#define IRQ_CAPTURE (1<<2)
+#define GCR_DATA 0x08
+#define GCR_INDEX 0x0C
+#define ALS300P_DRAM_IRQ_STATUS 0x0D /* ALS300+ Only */
+#define MPU_IRQ_STATUS 0x0E /* ALS300 Rev. E+, ALS300+ */
+#define ALS300P_IRQ_STATUS 0x0F /* ALS300+ Only */
+
+/* General Control Registers */
+#define PLAYBACK_START 0x80
+#define PLAYBACK_END 0x81
+#define PLAYBACK_CONTROL 0x82
+#define TRANSFER_START (1<<16)
+#define FIFO_PAUSE (1<<17)
+#define RECORD_START 0x83
+#define RECORD_END 0x84
+#define RECORD_CONTROL 0x85
+#define DRAM_WRITE_CONTROL 0x8B
+#define WRITE_TRANS_START (1<<16)
+#define DRAM_MODE_2 (1<<17)
+#define MISC_CONTROL 0x8C
+#define IRQ_SET_BIT (1<<15)
+#define VMUTE_NORMAL (1<<20)
+#define MMUTE_NORMAL (1<<21)
+#define MUS_VOC_VOL 0x8E
+#define PLAYBACK_BLOCK_COUNTER 0x9A
+#define RECORD_BLOCK_COUNTER 0x9B
+
+#define DEBUG_CALLS 1
+#define DEBUG_PLAY_REC 1
+
+#if DEBUG_CALLS
+#define snd_als300_dbgcalls(format, args...) printk(format, ##args)
+#define snd_als300_dbgcallenter() printk(KERN_ERR "--> %s\n", __FUNCTION__)
+#define snd_als300_dbgcallleave() printk(KERN_ERR "<-- %s\n", __FUNCTION__)
+#else
+#define snd_als300_dbgcalls(format, args...)
+#define snd_als300_dbgcallenter()
+#define snd_als300_dbgcallleave()
+#endif
+
+#if DEBUG_PLAY_REC
+#define snd_als300_dbgplay(format, args...) printk(KERN_ERR format, ##args)
+#else
+#define snd_als300_dbgplay(format, args...)
+#endif
+
+enum {DEVICE_ALS300, DEVICE_ALS300_PLUS};
+
+MODULE_AUTHOR("Ash Willis <ashwillis@programmer.net>");
+MODULE_DESCRIPTION("Avance Logic ALS300");
+MODULE_LICENSE("GPL");
+MODULE_SUPPORTED_DEVICE("{{Avance Logic,ALS300},{Avance Logic,ALS300+}}");
+
+static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
+static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
+static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
+
+struct snd_als300 {
+ unsigned long port;
+ spinlock_t reg_lock;
+ struct snd_card *card;
+ struct pci_dev *pci;
+
+ struct snd_pcm *pcm;
+ struct snd_pcm_substream *playback_substream;
+ struct snd_pcm_substream *capture_substream;
+
+ struct snd_ac97 *ac97;
+ struct snd_opl3 *opl3;
+
+ struct resource *res_port;
+
+ int irq;
+
+ int chip_type; /* ALS300 or ALS300+ */
+
+ char revision;
+};
+
+struct snd_als300_substream_data {
+ int period_flipflop;
+ int control_register;
+ int block_counter_register;
+};
+
+static struct pci_device_id snd_als300_ids[] = {
+ { 0x4005, 0x0300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALS300 },
+ { 0x4005, 0x0308, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALS300_PLUS },
+ { 0, }
+};
+
+MODULE_DEVICE_TABLE(pci, snd_als300_ids);
+
+static inline u32 snd_als300_gcr_read(unsigned long port, unsigned short reg)
+{
+ outb(reg, port+GCR_INDEX);
+ return inl(port+GCR_DATA);
+}
+
+static inline void snd_als300_gcr_write(unsigned long port,
+ unsigned short reg, u32 val)
+{
+ outb(reg, port+GCR_INDEX);
+ outl(val, port+GCR_DATA);
+}
+
+/* Enable/Disable Interrupts */
+static void snd_als300_set_irq_flag(struct snd_als300 *chip, int cmd)
+{
+ u32 tmp = snd_als300_gcr_read(chip->port, MISC_CONTROL);
+ snd_als300_dbgcallenter();
+
+ /* boolean XOR check, since old vs. new hardware have
+ directly reversed bit setting for ENABLE and DISABLE.
+ ALS300+ acts like newer versions of ALS300 */
+ if (((chip->revision > 5 || chip->chip_type == DEVICE_ALS300_PLUS) ^
+ (cmd == IRQ_ENABLE)) == 0)
+ tmp |= IRQ_SET_BIT;
+ else
+ tmp &= ~IRQ_SET_BIT;
+ snd_als300_gcr_write(chip->port, MISC_CONTROL, tmp);
+ snd_als300_dbgcallleave();
+}
+
+static int snd_als300_free(struct snd_als300 *chip)
+{
+ snd_als300_dbgcallenter();
+ snd_als300_set_irq_flag(chip, IRQ_DISABLE);
+ if (chip->irq >= 0)
+ free_irq(chip->irq, (void *)chip);
+ pci_release_regions(chip->pci);
+ pci_disable_device(chip->pci);
+ kfree(chip);
+ snd_als300_dbgcallleave();
+ return 0;
+}
+
+static int snd_als300_dev_free(struct snd_device *device)
+{
+ struct snd_als300 *chip = device->device_data;
+ return snd_als300_free(chip);
+}
+
+static irqreturn_t snd_als300_interrupt(int irq, void *dev_id,
+ struct pt_regs *regs)
+{
+ u8 status;
+ struct snd_als300 *chip = dev_id;
+ struct snd_als300_substream_data *data;
+
+ status = inb(chip->port+ALS300_IRQ_STATUS);
+ if (!status) /* shared IRQ, for different device?? Exit ASAP! */
+ return IRQ_NONE;
+
+ /* ACK everything ASAP */
+ outb(status, chip->port+ALS300_IRQ_STATUS);
+ if (status & IRQ_PLAYBACK) {
+ if (chip->pcm && chip->playback_substream) {
+ data = chip->playback_substream->runtime->private_data;
+ data->period_flipflop ^= 1;
+ snd_pcm_period_elapsed(chip->playback_substream);
+ snd_als300_dbgplay("IRQ_PLAYBACK\n");
+ }
+ }
+ if (status & IRQ_CAPTURE) {
+ if (chip->pcm && chip->capture_substream) {
+ data = chip->capture_substream->runtime->private_data;
+ data->period_flipflop ^= 1;
+ snd_pcm_period_elapsed(chip->capture_substream);
+ snd_als300_dbgplay("IRQ_CAPTURE\n");
+ }
+ }
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t snd_als300plus_interrupt(int irq, void *dev_id,
+ struct pt_regs *regs)
+{
+ u8 general, mpu, dram;
+ struct snd_als300 *chip = dev_id;
+ struct snd_als300_substream_data *data;
+
+ general = inb(chip->port+ALS300P_IRQ_STATUS);
+ mpu = inb(chip->port+MPU_IRQ_STATUS);
+ dram = inb(chip->port+ALS300P_DRAM_IRQ_STATUS);
+
+ /* shared IRQ, for different device?? Exit ASAP! */
+ if ((general == 0) && ((mpu & 0x80) == 0) && ((dram & 0x01) == 0))
+ return IRQ_NONE;
+
+ if (general & IRQ_PLAYBACK) {
+ if (chip->pcm && chip->playback_substream) {
+ outb(IRQ_PLAYBACK, chip->port+ALS300P_IRQ_STATUS);
+ data = chip->playback_substream->runtime->private_data;
+ data->period_flipflop ^= 1;
+ snd_pcm_period_elapsed(chip->playback_substream);
+ snd_als300_dbgplay("IRQ_PLAYBACK\n");
+ }
+ }
+ if (general & IRQ_CAPTURE) {
+ if (chip->pcm && chip->capture_substream) {
+ outb(IRQ_CAPTURE, chip->port+ALS300P_IRQ_STATUS);
+ data = chip->capture_substream->runtime->private_data;
+ data->period_flipflop ^= 1;
+ snd_pcm_period_elapsed(chip->capture_substream);
+ snd_als300_dbgplay("IRQ_CAPTURE\n");
+ }
+ }
+ /* FIXME: Ack other interrupt types. Not important right now as
+ * those other devices aren't enabled. */
+ return IRQ_HANDLED;
+}
+
+static void __devexit snd_als300_remove(struct pci_dev *pci)
+{
+ snd_als300_dbgcallenter();
+ snd_card_free(pci_get_drvdata(pci));
+ pci_set_drvdata(pci, NULL);
+ snd_als300_dbgcallleave();
+}
+
+static unsigned short snd_als300_ac97_read(struct snd_ac97 *ac97,
+ unsigned short reg)
+{
+ int i;
+ struct snd_als300 *chip = ac97->private_data;
+
+ for (i = 0; i < 1000; i++) {
+ if ((inb(chip->port+AC97_STATUS) & (AC97_BUSY)) == 0)
+ break;
+ udelay(10);
+ }
+ outl((reg << 24) | (1 << 31), chip->port+AC97_ACCESS);
+
+ for (i = 0; i < 1000; i++) {
+ if ((inb(chip->port+AC97_STATUS) & (AC97_DATA_AVAIL)) != 0)
+ break;
+ udelay(10);
+ }
+ return inw(chip->port+AC97_READ);
+}
+
+static void snd_als300_ac97_write(struct snd_ac97 *ac97,
+ unsigned short reg, unsigned short val)
+{
+ int i;
+ struct snd_als300 *chip = ac97->private_data;
+
+ for (i = 0; i < 1000; i++) {
+ if ((inb(chip->port+AC97_STATUS) & (AC97_BUSY)) == 0)
+ break;
+ udelay(10);
+ }
+ outl((reg << 24) | val, chip->port+AC97_ACCESS);
+}
+
+static int snd_als300_ac97(struct snd_als300 *chip)
+{
+ struct snd_ac97_bus *bus;
+ struct snd_ac97_template ac97;
+ int err;
+ static struct snd_ac97_bus_ops ops = {
+ .write = snd_als300_ac97_write,
+ .read = snd_als300_ac97_read,
+ };
+
+ snd_als300_dbgcallenter();
+ if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &bus)) < 0)
+ return err;
+
+ memset(&ac97, 0, sizeof(ac97));
+ ac97.private_data = chip;
+
+ snd_als300_dbgcallleave();
+ return snd_ac97_mixer(bus, &ac97, &chip->ac97);
+}
+
+/* hardware definition
+ *
+ * In AC97 mode, we always use 48k/16bit/stereo.
+ * Any request to change data type is ignored by
+ * the card when it is running outside of legacy
+ * mode.
+ */
+static struct snd_pcm_hardware snd_als300_playback_hw =
+{
+ .info = (SNDRV_PCM_INFO_MMAP |
+ SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_PAUSE |
+ SNDRV_PCM_INFO_MMAP_VALID),
+ .formats = SNDRV_PCM_FMTBIT_S16,
+ .rates = SNDRV_PCM_RATE_48000,
+ .rate_min = 48000,
+ .rate_max = 48000,
+ .channels_min = 2,
+ .channels_max = 2,
+ .buffer_bytes_max = 64 * 1024,
+ .period_bytes_min = 64,
+ .period_bytes_max = 32 * 1024,
+ .periods_min = 2,
+ .periods_max = 2,
+};
+
+static struct snd_pcm_hardware snd_als300_capture_hw =
+{
+ .info = (SNDRV_PCM_INFO_MMAP |
+ SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_PAUSE |
+ SNDRV_PCM_INFO_MMAP_VALID),
+ .formats = SNDRV_PCM_FMTBIT_S16,
+ .rates = SNDRV_PCM_RATE_48000,
+ .rate_min = 48000,
+ .rate_max = 48000,
+ .channels_min = 2,
+ .channels_max = 2,
+ .buffer_bytes_max = 64 * 1024,
+ .period_bytes_min = 64,
+ .period_bytes_max = 32 * 1024,
+ .periods_min = 2,
+ .periods_max = 2,
+};
+
+static int snd_als300_playback_open(struct snd_pcm_substream *substream)
+{
+ struct snd_als300 *chip = snd_pcm_substream_chip(substream);
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct snd_als300_substream_data *data = kzalloc(sizeof(*data),
+ GFP_KERNEL);
+
+ snd_als300_dbgcallenter();
+ chip->playback_substream = substream;
+ runtime->hw = snd_als300_playback_hw;
+ runtime->private_data = data;
+ data->control_register = PLAYBACK_CONTROL;
+ data->block_counter_register = PLAYBACK_BLOCK_COUNTER;
+ snd_als300_dbgcallleave();
+ return 0;
+}
+
+static int snd_als300_playback_close(struct snd_pcm_substream *substream)
+{
+ struct snd_als300 *chip = snd_pcm_substream_chip(substream);
+ struct snd_als300_substream_data *data;
+
+ data = substream->runtime->private_data;
+ snd_als300_dbgcallenter();
+ kfree(data);
+ chip->playback_substream = NULL;
+ snd_pcm_lib_free_pages(substream);
+ snd_als300_dbgcallleave();
+ return 0;
+}
+
+static int snd_als300_capture_open(struct snd_pcm_substream *substream)
+{
+ struct snd_als300 *chip = snd_pcm_substream_chip(substream);
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct snd_als300_substream_data *data = kzalloc(sizeof(*data),
+ GFP_KERNEL);
+
+ snd_als300_dbgcallenter();
+ chip->capture_substream = substream;
+ runtime->hw = snd_als300_capture_hw;
+ runtime->private_data = data;
+ data->control_register = RECORD_CONTROL;
+ data->block_counter_register = RECORD_BLOCK_COUNTER;
+ snd_als300_dbgcallleave();
+ return 0;
+}
+
+static int snd_als300_capture_close(struct snd_pcm_substream *substream)
+{
+ struct snd_als300 *chip = snd_pcm_substream_chip(substream);
+ struct snd_als300_substream_data *data;
+
+ data = substream->runtime->private_data;
+ snd_als300_dbgcallenter();
+ kfree(data);
+ chip->capture_substream = NULL;
+ snd_pcm_lib_free_pages(substream);
+ snd_als300_dbgcallleave();
+ return 0;
+}
+
+static int snd_als300_pcm_hw_params(struct snd_pcm_substream *substream,
+ snd_pcm_hw_params_t * hw_params)
+{
+ return snd_pcm_lib_malloc_pages(substream,
+ params_buffer_bytes(hw_params));
+}
+
+static int snd_als300_pcm_hw_free(struct snd_pcm_substream *substream)
+{
+ return snd_pcm_lib_free_pages(substream);
+}
+
+static int snd_als300_playback_prepare(struct snd_pcm_substream *substream)
+{
+ u32 tmp;
+ struct snd_als300 *chip = snd_pcm_substream_chip(substream);
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ unsigned short period_bytes = snd_pcm_lib_period_bytes(substream);
+ unsigned short buffer_bytes = snd_pcm_lib_buffer_bytes(substream);
+
+ snd_als300_dbgcallenter();
+ spin_lock_irq(&chip->reg_lock);
+ tmp = snd_als300_gcr_read(chip->port, PLAYBACK_CONTROL);
+ tmp &= ~TRANSFER_START;
+
+ snd_als300_dbgplay("Period bytes: %d Buffer bytes %d\n",
+ period_bytes, buffer_bytes);
+
+ /* set block size */
+ tmp &= 0xffff0000;
+ tmp |= period_bytes - 1;
+ snd_als300_gcr_write(chip->port, PLAYBACK_CONTROL, tmp);
+
+ /* set dma area */
+ snd_als300_gcr_write(chip->port, PLAYBACK_START,
+ runtime->dma_addr);
+ snd_als300_gcr_write(chip->port, PLAYBACK_END,
+ runtime->dma_addr + buffer_bytes - 1);
+ spin_unlock_irq(&chip->reg_lock);
+ snd_als300_dbgcallleave();
+ return 0;
+}
+
+static int snd_als300_capture_prepare(struct snd_pcm_substream *substream)
+{
+ u32 tmp;
+ struct snd_als300 *chip = snd_pcm_substream_chip(substream);
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ unsigned short period_bytes = snd_pcm_lib_period_bytes(substream);
+ unsigned short buffer_bytes = snd_pcm_lib_buffer_bytes(substream);
+
+ snd_als300_dbgcallenter();
+ spin_lock_irq(&chip->reg_lock);
+ tmp = snd_als300_gcr_read(chip->port, RECORD_CONTROL);
+ tmp &= ~TRANSFER_START;
+
+ snd_als300_dbgplay("Period bytes: %d Buffer bytes %d\n", period_bytes,
+ buffer_bytes);
+
+ /* set block size */
+ tmp &= 0xffff0000;
+ tmp |= period_bytes - 1;
+
+ /* set dma area */
+ snd_als300_gcr_write(chip->port, RECORD_CONTROL, tmp);
+ snd_als300_gcr_write(chip->port, RECORD_START,
+ runtime->dma_addr);
+ snd_als300_gcr_write(chip->port, RECORD_END,
+ runtime->dma_addr + buffer_bytes - 1);
+ spin_unlock_irq(&chip->reg_lock);
+ snd_als300_dbgcallleave();
+ return 0;
+}
+
+static int snd_als300_trigger(struct snd_pcm_substream *substream, int cmd)
+{
+ struct snd_als300 *chip = snd_pcm_substream_chip(substream);
+ u32 tmp;
+ struct snd_als300_substream_data *data;
+ unsigned short reg;
+ int ret = 0;
+
+ data = substream->runtime->private_data;
+ reg = data->control_register;
+
+ snd_als300_dbgcallenter();
+ spin_lock(&chip->reg_lock);
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_RESUME:
+ tmp = snd_als300_gcr_read(chip->port, reg);
+ data->period_flipflop = 1;
+ snd_als300_gcr_write(chip->port, reg, tmp | TRANSFER_START);
+ snd_als300_dbgplay("TRIGGER START\n");
+ break;
+ case SNDRV_PCM_TRIGGER_STOP:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ tmp = snd_als300_gcr_read(chip->port, reg);
+ snd_als300_gcr_write(chip->port, reg, tmp & ~TRANSFER_START);
+ snd_als300_dbgplay("TRIGGER STOP\n");
+ break;
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ tmp = snd_als300_gcr_read(chip->port, reg);
+ snd_als300_gcr_write(chip->port, reg, tmp | FIFO_PAUSE);
+ snd_als300_dbgplay("TRIGGER PAUSE\n");
+ break;
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ tmp = snd_als300_gcr_read(chip->port, reg);
+ snd_als300_gcr_write(chip->port, reg, tmp & ~FIFO_PAUSE);
+ snd_als300_dbgplay("TRIGGER RELEASE\n");
+ break;
+ default:
+ snd_als300_dbgplay("TRIGGER INVALID\n");
+ ret = -EINVAL;
+ }
+ spin_unlock(&chip->reg_lock);
+ snd_als300_dbgcallleave();
+ return ret;
+}
+
+static snd_pcm_uframes_t snd_als300_pointer(struct snd_pcm_substream *substream)
+{
+ u16 current_ptr;
+ struct snd_als300 *chip = snd_pcm_substream_chip(substream);
+ struct snd_als300_substream_data *data;
+ unsigned short period_bytes;
+
+ data = substream->runtime->private_data;
+ period_bytes = snd_pcm_lib_period_bytes(substream);
+
+ snd_als300_dbgcallenter();
+ spin_lock(&chip->reg_lock);
+ current_ptr = (u16) snd_als300_gcr_read(chip->port,
+ data->block_counter_register) + 4;
+ spin_unlock(&chip->reg_lock);
+ if (current_ptr > period_bytes)
+ current_ptr = 0;
+ else
+ current_ptr = period_bytes - current_ptr;
+
+ if (data->period_flipflop == 0)
+ current_ptr += period_bytes;
+ snd_als300_dbgplay("Pointer (bytes): %d\n", current_ptr);
+ snd_als300_dbgcallleave();
+ return bytes_to_frames(substream->runtime, current_ptr);
+}
+
+static struct snd_pcm_ops snd_als300_playback_ops = {
+ .open = snd_als300_playback_open,
+ .close = snd_als300_playback_close,
+ .ioctl = snd_pcm_lib_ioctl,
+ .hw_params = snd_als300_pcm_hw_params,
+ .hw_free = snd_als300_pcm_hw_free,
+ .prepare = snd_als300_playback_prepare,
+ .trigger = snd_als300_trigger,
+ .pointer = snd_als300_pointer,
+};
+
+static struct snd_pcm_ops snd_als300_capture_ops = {
+ .open = snd_als300_capture_open,
+ .close = snd_als300_capture_close,
+ .ioctl = snd_pcm_lib_ioctl,
+ .hw_params = snd_als300_pcm_hw_params,
+ .hw_free = snd_als300_pcm_hw_free,
+ .prepare = snd_als300_capture_prepare,
+ .trigger = snd_als300_trigger,
+ .pointer = snd_als300_pointer,
+};
+
+static int __devinit snd_als300_new_pcm(struct snd_als300 *chip)
+{
+ struct snd_pcm *pcm;
+ int err;
+
+ snd_als300_dbgcallenter();
+ err = snd_pcm_new(chip->card, "ALS300", 0, 1, 1, &pcm);
+ if (err < 0)
+ return err;
+ pcm->private_data = chip;
+ strcpy(pcm->name, "ALS300");
+ chip->pcm = pcm;
+
+ /* set operators */
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
+ &snd_als300_playback_ops);
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
+ &snd_als300_capture_ops);
+
+ /* pre-allocation of buffers */
+ snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
+ snd_dma_pci_data(chip->pci), 64*1024, 64*1024);
+ snd_als300_dbgcallleave();
+ return 0;
+}
+
+static void snd_als300_init(struct snd_als300 *chip)
+{
+ unsigned long flags;
+ u32 tmp;
+
+ snd_als300_dbgcallenter();
+ spin_lock_irqsave(&chip->reg_lock, flags);
+ chip->revision = (snd_als300_gcr_read(chip->port, MISC_CONTROL) >> 16)
+ & 0x0000000F;
+ /* Setup DRAM */
+ tmp = snd_als300_gcr_read(chip->port, DRAM_WRITE_CONTROL);
+ snd_als300_gcr_write(chip->port, DRAM_WRITE_CONTROL,
+ (tmp | DRAM_MODE_2)
+ & ~WRITE_TRANS_START);
+
+ /* Enable IRQ output */
+ snd_als300_set_irq_flag(chip, IRQ_ENABLE);
+
+ /* Unmute hardware devices so their outputs get routed to
+ * the onboard mixer */
+ tmp = snd_als300_gcr_read(chip->port, MISC_CONTROL);
+ snd_als300_gcr_write(chip->port, MISC_CONTROL,
+ tmp | VMUTE_NORMAL | MMUTE_NORMAL);
+
+ /* Reset volumes */
+ snd_als300_gcr_write(chip->port, MUS_VOC_VOL, 0);
+
+ /* Make sure playback transfer is stopped */
+ tmp = snd_als300_gcr_read(chip->port, PLAYBACK_CONTROL);
+ snd_als300_gcr_write(chip->port, PLAYBACK_CONTROL,
+ tmp & ~TRANSFER_START);
+ spin_unlock_irqrestore(&chip->reg_lock, flags);
+ snd_als300_dbgcallleave();
+}
+
+static int __devinit snd_als300_create(snd_card_t *card,
+ struct pci_dev *pci, int chip_type,
+ struct snd_als300 **rchip)
+{
+ struct snd_als300 *chip;
+ void *irq_handler;
+ int err;
+
+ static snd_device_ops_t ops = {
+ .dev_free = snd_als300_dev_free,
+ };
+ *rchip = NULL;
+
+ snd_als300_dbgcallenter();
+ if ((err = pci_enable_device(pci)) < 0)
+ return err;
+
+ if (pci_set_dma_mask(pci, 0x0fffffff) < 0 ||
+ pci_set_consistent_dma_mask(pci, 0x0fffffff) < 0) {
+ printk(KERN_ERR "error setting 28bit DMA mask\n");
+ pci_disable_device(pci);
+ return -ENXIO;
+ }
+ pci_set_master(pci);
+
+ chip = kzalloc(sizeof(*chip), GFP_KERNEL);
+ if (chip == NULL) {
+ pci_disable_device(pci);
+ return -ENOMEM;
+ }
+
+ chip->card = card;
+ chip->pci = pci;
+ chip->irq = -1;
+ chip->chip_type = chip_type;
+ spin_lock_init(&chip->reg_lock);
+
+ if ((err = pci_request_regions(pci, "ALS300")) < 0) {
+ kfree(chip);
+ pci_disable_device(pci);
+ return err;
+ }
+ chip->port = pci_resource_start(pci, 0);
+
+ if (chip->chip_type == DEVICE_ALS300_PLUS)
+ irq_handler = snd_als300plus_interrupt;
+ else
+ irq_handler = snd_als300_interrupt;
+
+ if (request_irq(pci->irq, irq_handler, SA_INTERRUPT|SA_SHIRQ,
+ card->shortname, (void *)chip)) {
+ snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
+ snd_als300_free(chip);
+ return -EBUSY;
+ }
+ chip->irq = pci->irq;
+
+
+ snd_als300_init(chip);
+
+ if (snd_als300_ac97(chip) < 0) {
+ snd_printk(KERN_WARNING "Could not create ac97\n");
+ snd_als300_free(chip);
+ return err;
+ }
+
+ if ((err = snd_als300_new_pcm(chip)) < 0) {
+ snd_printk(KERN_WARNING "Could not create PCM\n");
+ snd_als300_free(chip);
+ return err;
+ }
+
+ if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
+ chip, &ops)) < 0) {
+ snd_als300_free(chip);
+ return err;
+ }
+
+ snd_card_set_dev(card, &pci->dev);
+
+ *rchip = chip;
+ snd_als300_dbgcallleave();
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int snd_als300_suspend(struct pci_dev *pci, pm_message_t state)
+{
+ struct snd_card *card = pci_get_drvdata(pci);
+ struct snd_als300 *chip = card->private_data;
+
+ snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
+ snd_pcm_suspend_all(chip->pcm);
+ snd_ac97_suspend(chip->ac97);
+
+ pci_set_power_state(pci, PCI_D3hot);
+ pci_disable_device(pci);
+ pci_save_state(pci);
+ return 0;
+}
+
+static int snd_als300_resume(struct pci_dev *pci)
+{
+ struct snd_card *card = pci_get_drvdata(pci);
+ struct snd_als300 *chip = card->private_data;
+
+ pci_restore_state(pci);
+ pci_enable_device(pci);
+ pci_set_power_state(pci, PCI_D0);
+ pci_set_master(pci);
+
+ snd_als300_init(chip);
+ snd_ac97_resume(chip->ac97);
+
+ snd_power_change_state(card, SNDRV_CTL_POWER_D0);
+ return 0;
+}
+#endif
+
+static int __devinit snd_als300_probe(struct pci_dev *pci,
+ const struct pci_device_id *pci_id)
+{
+ static int dev;
+ struct snd_card *card;
+ struct snd_als300 *chip;
+ int err, chip_type;
+
+ if (dev >= SNDRV_CARDS)
+ return -ENODEV;
+ if (!enable[dev]) {
+ dev++;
+ return -ENOENT;
+ }
+
+ card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
+
+ if (card == NULL)
+ return -ENOMEM;
+
+ chip_type = pci_id->driver_data;
+
+ if ((err = snd_als300_create(card, pci, chip_type, &chip)) < 0) {
+ snd_card_free(card);
+ return err;
+ }
+ card->private_data = chip;
+
+ strcpy(card->driver, "ALS300");
+ if (chip->chip_type == DEVICE_ALS300_PLUS)
+ /* don't know much about ALS300+ yet
+ * print revision number for now */
+ sprintf(card->shortname, "ALS300+ (Rev. %d)", chip->revision);
+ else
+ sprintf(card->shortname, "ALS300 (Rev. %c)", 'A' +
+ chip->revision - 1);
+ sprintf(card->longname, "%s at 0x%lx irq %i",
+ card->shortname, chip->port, chip->irq);
+
+ if ((err = snd_card_register(card)) < 0) {
+ snd_card_free(card);
+ return err;
+ }
+ pci_set_drvdata(pci, card);
+ dev++;
+ return 0;
+}
+
+static struct pci_driver driver = {
+ .name = "ALS300",
+ .id_table = snd_als300_ids,
+ .probe = snd_als300_probe,
+ .remove = __devexit_p(snd_als300_remove),
+#ifdef CONFIG_PM
+ .suspend = snd_als300_suspend,
+ .resume = snd_als300_resume,
+#endif
+};
+
+static int __init alsa_card_als300_init(void)
+{
+ return pci_register_driver(&driver);
+}
+
+static void __exit alsa_card_als300_exit(void)
+{
+ pci_unregister_driver(&driver);
+}
+
+module_init(alsa_card_als300_init)
+module_exit(alsa_card_als300_exit)
projects / linux-2.6 / commitdiff