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786 lines
20 KiB
786 lines
20 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* als300.c - driver for Avance Logic ALS300/ALS300+ soundcards. |
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* Copyright (C) 2005 by Ash Willis <[email protected]> |
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* |
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* TODO |
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* 4 channel playback for ALS300+ |
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* gameport |
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* mpu401 |
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* opl3 |
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* |
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* NOTES |
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* The BLOCK_COUNTER registers for the ALS300(+) return a figure related to |
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* the position in the current period, NOT the whole buffer. It is important |
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* to know which period we are in so we can calculate the correct pointer. |
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* This is why we always use 2 periods. We can then use a flip-flop variable |
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* to keep track of what period we are in. |
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*/ |
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|
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#include <linux/delay.h> |
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#include <linux/init.h> |
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#include <linux/module.h> |
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#include <linux/pci.h> |
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#include <linux/dma-mapping.h> |
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#include <linux/interrupt.h> |
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#include <linux/slab.h> |
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#include <linux/io.h> |
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|
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#include <sound/core.h> |
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#include <sound/control.h> |
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#include <sound/initval.h> |
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#include <sound/pcm.h> |
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#include <sound/pcm_params.h> |
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#include <sound/ac97_codec.h> |
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#include <sound/opl3.h> |
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|
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/* snd_als300_set_irq_flag */ |
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#define IRQ_DISABLE 0 |
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#define IRQ_ENABLE 1 |
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|
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/* I/O port layout */ |
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#define AC97_ACCESS 0x00 |
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#define AC97_READ 0x04 |
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#define AC97_STATUS 0x06 |
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#define AC97_DATA_AVAIL (1<<6) |
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#define AC97_BUSY (1<<7) |
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#define ALS300_IRQ_STATUS 0x07 /* ALS300 Only */ |
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#define IRQ_PLAYBACK (1<<3) |
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#define IRQ_CAPTURE (1<<2) |
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#define GCR_DATA 0x08 |
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#define GCR_INDEX 0x0C |
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#define ALS300P_DRAM_IRQ_STATUS 0x0D /* ALS300+ Only */ |
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#define MPU_IRQ_STATUS 0x0E /* ALS300 Rev. E+, ALS300+ */ |
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#define ALS300P_IRQ_STATUS 0x0F /* ALS300+ Only */ |
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|
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/* General Control Registers */ |
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#define PLAYBACK_START 0x80 |
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#define PLAYBACK_END 0x81 |
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#define PLAYBACK_CONTROL 0x82 |
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#define TRANSFER_START (1<<16) |
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#define FIFO_PAUSE (1<<17) |
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#define RECORD_START 0x83 |
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#define RECORD_END 0x84 |
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#define RECORD_CONTROL 0x85 |
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#define DRAM_WRITE_CONTROL 0x8B |
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#define WRITE_TRANS_START (1<<16) |
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#define DRAM_MODE_2 (1<<17) |
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#define MISC_CONTROL 0x8C |
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#define IRQ_SET_BIT (1<<15) |
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#define VMUTE_NORMAL (1<<20) |
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#define MMUTE_NORMAL (1<<21) |
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#define MUS_VOC_VOL 0x8E |
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#define PLAYBACK_BLOCK_COUNTER 0x9A |
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#define RECORD_BLOCK_COUNTER 0x9B |
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|
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#define DEBUG_PLAY_REC 0 |
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|
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#if DEBUG_PLAY_REC |
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#define snd_als300_dbgplay(format, args...) printk(KERN_ERR format, ##args) |
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#else |
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#define snd_als300_dbgplay(format, args...) |
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#endif |
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|
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enum {DEVICE_ALS300, DEVICE_ALS300_PLUS}; |
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|
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MODULE_AUTHOR("Ash Willis <[email protected]>"); |
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MODULE_DESCRIPTION("Avance Logic ALS300"); |
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MODULE_LICENSE("GPL"); |
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|
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static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; |
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static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; |
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static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; |
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|
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module_param_array(index, int, NULL, 0444); |
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MODULE_PARM_DESC(index, "Index value for ALS300 sound card."); |
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module_param_array(id, charp, NULL, 0444); |
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MODULE_PARM_DESC(id, "ID string for ALS300 sound card."); |
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module_param_array(enable, bool, NULL, 0444); |
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MODULE_PARM_DESC(enable, "Enable ALS300 sound card."); |
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|
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struct snd_als300 { |
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unsigned long port; |
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spinlock_t reg_lock; |
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struct snd_card *card; |
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struct pci_dev *pci; |
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|
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struct snd_pcm *pcm; |
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struct snd_pcm_substream *playback_substream; |
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struct snd_pcm_substream *capture_substream; |
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|
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struct snd_ac97 *ac97; |
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struct snd_opl3 *opl3; |
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|
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struct resource *res_port; |
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|
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int irq; |
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|
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int chip_type; /* ALS300 or ALS300+ */ |
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|
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char revision; |
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}; |
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|
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struct snd_als300_substream_data { |
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int period_flipflop; |
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int control_register; |
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int block_counter_register; |
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}; |
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|
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static const struct pci_device_id snd_als300_ids[] = { |
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{ 0x4005, 0x0300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALS300 }, |
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{ 0x4005, 0x0308, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALS300_PLUS }, |
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{ 0, } |
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}; |
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|
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MODULE_DEVICE_TABLE(pci, snd_als300_ids); |
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|
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static inline u32 snd_als300_gcr_read(unsigned long port, unsigned short reg) |
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{ |
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outb(reg, port+GCR_INDEX); |
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return inl(port+GCR_DATA); |
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} |
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|
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static inline void snd_als300_gcr_write(unsigned long port, |
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unsigned short reg, u32 val) |
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{ |
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outb(reg, port+GCR_INDEX); |
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outl(val, port+GCR_DATA); |
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} |
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|
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/* Enable/Disable Interrupts */ |
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static void snd_als300_set_irq_flag(struct snd_als300 *chip, int cmd) |
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{ |
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u32 tmp = snd_als300_gcr_read(chip->port, MISC_CONTROL); |
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|
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/* boolean XOR check, since old vs. new hardware have |
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directly reversed bit setting for ENABLE and DISABLE. |
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ALS300+ acts like newer versions of ALS300 */ |
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if (((chip->revision > 5 || chip->chip_type == DEVICE_ALS300_PLUS) ^ |
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(cmd == IRQ_ENABLE)) == 0) |
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tmp |= IRQ_SET_BIT; |
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else |
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tmp &= ~IRQ_SET_BIT; |
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snd_als300_gcr_write(chip->port, MISC_CONTROL, tmp); |
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} |
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|
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static int snd_als300_free(struct snd_als300 *chip) |
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{ |
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snd_als300_set_irq_flag(chip, IRQ_DISABLE); |
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if (chip->irq >= 0) |
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free_irq(chip->irq, chip); |
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pci_release_regions(chip->pci); |
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pci_disable_device(chip->pci); |
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kfree(chip); |
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return 0; |
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} |
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|
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static int snd_als300_dev_free(struct snd_device *device) |
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{ |
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struct snd_als300 *chip = device->device_data; |
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return snd_als300_free(chip); |
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} |
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|
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static irqreturn_t snd_als300_interrupt(int irq, void *dev_id) |
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{ |
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u8 status; |
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struct snd_als300 *chip = dev_id; |
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struct snd_als300_substream_data *data; |
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|
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status = inb(chip->port+ALS300_IRQ_STATUS); |
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if (!status) /* shared IRQ, for different device?? Exit ASAP! */ |
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return IRQ_NONE; |
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|
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/* ACK everything ASAP */ |
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outb(status, chip->port+ALS300_IRQ_STATUS); |
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if (status & IRQ_PLAYBACK) { |
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if (chip->pcm && chip->playback_substream) { |
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data = chip->playback_substream->runtime->private_data; |
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data->period_flipflop ^= 1; |
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snd_pcm_period_elapsed(chip->playback_substream); |
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snd_als300_dbgplay("IRQ_PLAYBACK\n"); |
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} |
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} |
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if (status & IRQ_CAPTURE) { |
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if (chip->pcm && chip->capture_substream) { |
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data = chip->capture_substream->runtime->private_data; |
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data->period_flipflop ^= 1; |
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snd_pcm_period_elapsed(chip->capture_substream); |
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snd_als300_dbgplay("IRQ_CAPTURE\n"); |
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} |
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} |
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return IRQ_HANDLED; |
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} |
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|
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static irqreturn_t snd_als300plus_interrupt(int irq, void *dev_id) |
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{ |
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u8 general, mpu, dram; |
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struct snd_als300 *chip = dev_id; |
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struct snd_als300_substream_data *data; |
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|
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general = inb(chip->port+ALS300P_IRQ_STATUS); |
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mpu = inb(chip->port+MPU_IRQ_STATUS); |
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dram = inb(chip->port+ALS300P_DRAM_IRQ_STATUS); |
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|
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/* shared IRQ, for different device?? Exit ASAP! */ |
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if ((general == 0) && ((mpu & 0x80) == 0) && ((dram & 0x01) == 0)) |
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return IRQ_NONE; |
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|
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if (general & IRQ_PLAYBACK) { |
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if (chip->pcm && chip->playback_substream) { |
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outb(IRQ_PLAYBACK, chip->port+ALS300P_IRQ_STATUS); |
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data = chip->playback_substream->runtime->private_data; |
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data->period_flipflop ^= 1; |
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snd_pcm_period_elapsed(chip->playback_substream); |
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snd_als300_dbgplay("IRQ_PLAYBACK\n"); |
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} |
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} |
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if (general & IRQ_CAPTURE) { |
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if (chip->pcm && chip->capture_substream) { |
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outb(IRQ_CAPTURE, chip->port+ALS300P_IRQ_STATUS); |
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data = chip->capture_substream->runtime->private_data; |
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data->period_flipflop ^= 1; |
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snd_pcm_period_elapsed(chip->capture_substream); |
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snd_als300_dbgplay("IRQ_CAPTURE\n"); |
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} |
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} |
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/* FIXME: Ack other interrupt types. Not important right now as |
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* those other devices aren't enabled. */ |
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return IRQ_HANDLED; |
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} |
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|
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static void snd_als300_remove(struct pci_dev *pci) |
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{ |
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snd_card_free(pci_get_drvdata(pci)); |
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} |
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|
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static unsigned short snd_als300_ac97_read(struct snd_ac97 *ac97, |
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unsigned short reg) |
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{ |
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int i; |
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struct snd_als300 *chip = ac97->private_data; |
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|
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for (i = 0; i < 1000; i++) { |
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if ((inb(chip->port+AC97_STATUS) & (AC97_BUSY)) == 0) |
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break; |
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udelay(10); |
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} |
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outl((reg << 24) | (1 << 31), chip->port+AC97_ACCESS); |
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for (i = 0; i < 1000; i++) { |
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if ((inb(chip->port+AC97_STATUS) & (AC97_DATA_AVAIL)) != 0) |
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break; |
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udelay(10); |
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} |
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return inw(chip->port+AC97_READ); |
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} |
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static void snd_als300_ac97_write(struct snd_ac97 *ac97, |
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unsigned short reg, unsigned short val) |
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{ |
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int i; |
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struct snd_als300 *chip = ac97->private_data; |
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for (i = 0; i < 1000; i++) { |
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if ((inb(chip->port+AC97_STATUS) & (AC97_BUSY)) == 0) |
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break; |
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udelay(10); |
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} |
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outl((reg << 24) | val, chip->port+AC97_ACCESS); |
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} |
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static int snd_als300_ac97(struct snd_als300 *chip) |
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{ |
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struct snd_ac97_bus *bus; |
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struct snd_ac97_template ac97; |
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int err; |
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static const struct snd_ac97_bus_ops ops = { |
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.write = snd_als300_ac97_write, |
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.read = snd_als300_ac97_read, |
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}; |
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err = snd_ac97_bus(chip->card, 0, &ops, NULL, &bus); |
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if (err < 0) |
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return err; |
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memset(&ac97, 0, sizeof(ac97)); |
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ac97.private_data = chip; |
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return snd_ac97_mixer(bus, &ac97, &chip->ac97); |
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} |
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|
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/* hardware definition |
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* |
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* In AC97 mode, we always use 48k/16bit/stereo. |
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* Any request to change data type is ignored by |
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* the card when it is running outside of legacy |
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* mode. |
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*/ |
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static const struct snd_pcm_hardware snd_als300_playback_hw = |
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{ |
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.info = (SNDRV_PCM_INFO_MMAP | |
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SNDRV_PCM_INFO_INTERLEAVED | |
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SNDRV_PCM_INFO_PAUSE | |
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SNDRV_PCM_INFO_MMAP_VALID), |
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.formats = SNDRV_PCM_FMTBIT_S16, |
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.rates = SNDRV_PCM_RATE_48000, |
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.rate_min = 48000, |
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.rate_max = 48000, |
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.channels_min = 2, |
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.channels_max = 2, |
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.buffer_bytes_max = 64 * 1024, |
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.period_bytes_min = 64, |
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.period_bytes_max = 32 * 1024, |
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.periods_min = 2, |
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.periods_max = 2, |
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}; |
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|
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static const struct snd_pcm_hardware snd_als300_capture_hw = |
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{ |
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.info = (SNDRV_PCM_INFO_MMAP | |
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SNDRV_PCM_INFO_INTERLEAVED | |
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SNDRV_PCM_INFO_PAUSE | |
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SNDRV_PCM_INFO_MMAP_VALID), |
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.formats = SNDRV_PCM_FMTBIT_S16, |
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.rates = SNDRV_PCM_RATE_48000, |
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.rate_min = 48000, |
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.rate_max = 48000, |
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.channels_min = 2, |
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.channels_max = 2, |
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.buffer_bytes_max = 64 * 1024, |
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.period_bytes_min = 64, |
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.period_bytes_max = 32 * 1024, |
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.periods_min = 2, |
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.periods_max = 2, |
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}; |
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|
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static int snd_als300_playback_open(struct snd_pcm_substream *substream) |
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{ |
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struct snd_als300 *chip = snd_pcm_substream_chip(substream); |
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struct snd_pcm_runtime *runtime = substream->runtime; |
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struct snd_als300_substream_data *data = kzalloc(sizeof(*data), |
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GFP_KERNEL); |
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|
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if (!data) |
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return -ENOMEM; |
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chip->playback_substream = substream; |
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runtime->hw = snd_als300_playback_hw; |
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runtime->private_data = data; |
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data->control_register = PLAYBACK_CONTROL; |
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data->block_counter_register = PLAYBACK_BLOCK_COUNTER; |
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return 0; |
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} |
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|
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static int snd_als300_playback_close(struct snd_pcm_substream *substream) |
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{ |
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struct snd_als300 *chip = snd_pcm_substream_chip(substream); |
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struct snd_als300_substream_data *data; |
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|
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data = substream->runtime->private_data; |
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kfree(data); |
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chip->playback_substream = NULL; |
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return 0; |
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} |
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|
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static int snd_als300_capture_open(struct snd_pcm_substream *substream) |
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{ |
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struct snd_als300 *chip = snd_pcm_substream_chip(substream); |
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struct snd_pcm_runtime *runtime = substream->runtime; |
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struct snd_als300_substream_data *data = kzalloc(sizeof(*data), |
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GFP_KERNEL); |
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|
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if (!data) |
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return -ENOMEM; |
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chip->capture_substream = substream; |
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runtime->hw = snd_als300_capture_hw; |
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runtime->private_data = data; |
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data->control_register = RECORD_CONTROL; |
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data->block_counter_register = RECORD_BLOCK_COUNTER; |
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return 0; |
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} |
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|
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static int snd_als300_capture_close(struct snd_pcm_substream *substream) |
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{ |
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struct snd_als300 *chip = snd_pcm_substream_chip(substream); |
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struct snd_als300_substream_data *data; |
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|
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data = substream->runtime->private_data; |
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kfree(data); |
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chip->capture_substream = NULL; |
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return 0; |
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} |
|
|
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static int snd_als300_playback_prepare(struct snd_pcm_substream *substream) |
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{ |
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u32 tmp; |
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struct snd_als300 *chip = snd_pcm_substream_chip(substream); |
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struct snd_pcm_runtime *runtime = substream->runtime; |
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unsigned short period_bytes = snd_pcm_lib_period_bytes(substream); |
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unsigned short buffer_bytes = snd_pcm_lib_buffer_bytes(substream); |
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|
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spin_lock_irq(&chip->reg_lock); |
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tmp = snd_als300_gcr_read(chip->port, PLAYBACK_CONTROL); |
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tmp &= ~TRANSFER_START; |
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|
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snd_als300_dbgplay("Period bytes: %d Buffer bytes %d\n", |
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period_bytes, buffer_bytes); |
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|
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/* set block size */ |
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tmp &= 0xffff0000; |
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tmp |= period_bytes - 1; |
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snd_als300_gcr_write(chip->port, PLAYBACK_CONTROL, tmp); |
|
|
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/* set dma area */ |
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snd_als300_gcr_write(chip->port, PLAYBACK_START, |
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runtime->dma_addr); |
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snd_als300_gcr_write(chip->port, PLAYBACK_END, |
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runtime->dma_addr + buffer_bytes - 1); |
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spin_unlock_irq(&chip->reg_lock); |
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return 0; |
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} |
|
|
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static int snd_als300_capture_prepare(struct snd_pcm_substream *substream) |
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{ |
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u32 tmp; |
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struct snd_als300 *chip = snd_pcm_substream_chip(substream); |
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struct snd_pcm_runtime *runtime = substream->runtime; |
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unsigned short period_bytes = snd_pcm_lib_period_bytes(substream); |
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unsigned short buffer_bytes = snd_pcm_lib_buffer_bytes(substream); |
|
|
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spin_lock_irq(&chip->reg_lock); |
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tmp = snd_als300_gcr_read(chip->port, RECORD_CONTROL); |
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tmp &= ~TRANSFER_START; |
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|
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snd_als300_dbgplay("Period bytes: %d Buffer bytes %d\n", period_bytes, |
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buffer_bytes); |
|
|
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/* set block size */ |
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tmp &= 0xffff0000; |
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tmp |= period_bytes - 1; |
|
|
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/* set dma area */ |
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snd_als300_gcr_write(chip->port, RECORD_CONTROL, tmp); |
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snd_als300_gcr_write(chip->port, RECORD_START, |
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runtime->dma_addr); |
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snd_als300_gcr_write(chip->port, RECORD_END, |
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runtime->dma_addr + buffer_bytes - 1); |
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spin_unlock_irq(&chip->reg_lock); |
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return 0; |
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} |
|
|
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static int snd_als300_trigger(struct snd_pcm_substream *substream, int cmd) |
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{ |
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struct snd_als300 *chip = snd_pcm_substream_chip(substream); |
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u32 tmp; |
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struct snd_als300_substream_data *data; |
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unsigned short reg; |
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int ret = 0; |
|
|
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data = substream->runtime->private_data; |
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reg = data->control_register; |
|
|
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spin_lock(&chip->reg_lock); |
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switch (cmd) { |
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case SNDRV_PCM_TRIGGER_START: |
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case SNDRV_PCM_TRIGGER_RESUME: |
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tmp = snd_als300_gcr_read(chip->port, reg); |
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data->period_flipflop = 1; |
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snd_als300_gcr_write(chip->port, reg, tmp | TRANSFER_START); |
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snd_als300_dbgplay("TRIGGER START\n"); |
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break; |
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case SNDRV_PCM_TRIGGER_STOP: |
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case SNDRV_PCM_TRIGGER_SUSPEND: |
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tmp = snd_als300_gcr_read(chip->port, reg); |
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snd_als300_gcr_write(chip->port, reg, tmp & ~TRANSFER_START); |
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snd_als300_dbgplay("TRIGGER STOP\n"); |
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break; |
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case SNDRV_PCM_TRIGGER_PAUSE_PUSH: |
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tmp = snd_als300_gcr_read(chip->port, reg); |
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snd_als300_gcr_write(chip->port, reg, tmp | FIFO_PAUSE); |
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snd_als300_dbgplay("TRIGGER PAUSE\n"); |
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break; |
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case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: |
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tmp = snd_als300_gcr_read(chip->port, reg); |
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snd_als300_gcr_write(chip->port, reg, tmp & ~FIFO_PAUSE); |
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snd_als300_dbgplay("TRIGGER RELEASE\n"); |
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break; |
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default: |
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snd_als300_dbgplay("TRIGGER INVALID\n"); |
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ret = -EINVAL; |
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} |
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spin_unlock(&chip->reg_lock); |
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return ret; |
|
} |
|
|
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static snd_pcm_uframes_t snd_als300_pointer(struct snd_pcm_substream *substream) |
|
{ |
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u16 current_ptr; |
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struct snd_als300 *chip = snd_pcm_substream_chip(substream); |
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struct snd_als300_substream_data *data; |
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unsigned short period_bytes; |
|
|
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data = substream->runtime->private_data; |
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period_bytes = snd_pcm_lib_period_bytes(substream); |
|
|
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spin_lock(&chip->reg_lock); |
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current_ptr = (u16) snd_als300_gcr_read(chip->port, |
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data->block_counter_register) + 4; |
|
spin_unlock(&chip->reg_lock); |
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if (current_ptr > period_bytes) |
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current_ptr = 0; |
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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); |
|
return bytes_to_frames(substream->runtime, current_ptr); |
|
} |
|
|
|
static const struct snd_pcm_ops snd_als300_playback_ops = { |
|
.open = snd_als300_playback_open, |
|
.close = snd_als300_playback_close, |
|
.prepare = snd_als300_playback_prepare, |
|
.trigger = snd_als300_trigger, |
|
.pointer = snd_als300_pointer, |
|
}; |
|
|
|
static const struct snd_pcm_ops snd_als300_capture_ops = { |
|
.open = snd_als300_capture_open, |
|
.close = snd_als300_capture_close, |
|
.prepare = snd_als300_capture_prepare, |
|
.trigger = snd_als300_trigger, |
|
.pointer = snd_als300_pointer, |
|
}; |
|
|
|
static int snd_als300_new_pcm(struct snd_als300 *chip) |
|
{ |
|
struct snd_pcm *pcm; |
|
int err; |
|
|
|
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_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, &chip->pci->dev, |
|
64*1024, 64*1024); |
|
return 0; |
|
} |
|
|
|
static void snd_als300_init(struct snd_als300 *chip) |
|
{ |
|
unsigned long flags; |
|
u32 tmp; |
|
|
|
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); |
|
} |
|
|
|
static int snd_als300_create(struct snd_card *card, |
|
struct pci_dev *pci, int chip_type, |
|
struct snd_als300 **rchip) |
|
{ |
|
struct snd_als300 *chip; |
|
void *irq_handler; |
|
int err; |
|
|
|
static const struct snd_device_ops ops = { |
|
.dev_free = snd_als300_dev_free, |
|
}; |
|
*rchip = NULL; |
|
|
|
err = pci_enable_device(pci); |
|
if (err < 0) |
|
return err; |
|
|
|
if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(28))) { |
|
dev_err(card->dev, "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); |
|
|
|
err = pci_request_regions(pci, "ALS300"); |
|
if (err < 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, IRQF_SHARED, |
|
KBUILD_MODNAME, chip)) { |
|
dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq); |
|
snd_als300_free(chip); |
|
return -EBUSY; |
|
} |
|
chip->irq = pci->irq; |
|
card->sync_irq = chip->irq; |
|
|
|
snd_als300_init(chip); |
|
|
|
err = snd_als300_ac97(chip); |
|
if (err < 0) { |
|
dev_err(card->dev, "Could not create ac97\n"); |
|
snd_als300_free(chip); |
|
return err; |
|
} |
|
|
|
err = snd_als300_new_pcm(chip); |
|
if (err < 0) { |
|
dev_err(card->dev, "Could not create PCM\n"); |
|
snd_als300_free(chip); |
|
return err; |
|
} |
|
|
|
err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); |
|
if (err < 0) { |
|
snd_als300_free(chip); |
|
return err; |
|
} |
|
|
|
*rchip = chip; |
|
return 0; |
|
} |
|
|
|
#ifdef CONFIG_PM_SLEEP |
|
static int snd_als300_suspend(struct device *dev) |
|
{ |
|
struct snd_card *card = dev_get_drvdata(dev); |
|
struct snd_als300 *chip = card->private_data; |
|
|
|
snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); |
|
snd_ac97_suspend(chip->ac97); |
|
return 0; |
|
} |
|
|
|
static int snd_als300_resume(struct device *dev) |
|
{ |
|
struct snd_card *card = dev_get_drvdata(dev); |
|
struct snd_als300 *chip = card->private_data; |
|
|
|
snd_als300_init(chip); |
|
snd_ac97_resume(chip->ac97); |
|
|
|
snd_power_change_state(card, SNDRV_CTL_POWER_D0); |
|
return 0; |
|
} |
|
|
|
static SIMPLE_DEV_PM_OPS(snd_als300_pm, snd_als300_suspend, snd_als300_resume); |
|
#define SND_ALS300_PM_OPS &snd_als300_pm |
|
#else |
|
#define SND_ALS300_PM_OPS NULL |
|
#endif |
|
|
|
static int 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; |
|
} |
|
|
|
err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE, |
|
0, &card); |
|
|
|
if (err < 0) |
|
return err; |
|
|
|
chip_type = pci_id->driver_data; |
|
|
|
err = snd_als300_create(card, pci, chip_type, &chip); |
|
if (err < 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); |
|
|
|
err = snd_card_register(card); |
|
if (err < 0) { |
|
snd_card_free(card); |
|
return err; |
|
} |
|
pci_set_drvdata(pci, card); |
|
dev++; |
|
return 0; |
|
} |
|
|
|
static struct pci_driver als300_driver = { |
|
.name = KBUILD_MODNAME, |
|
.id_table = snd_als300_ids, |
|
.probe = snd_als300_probe, |
|
.remove = snd_als300_remove, |
|
.driver = { |
|
.pm = SND_ALS300_PM_OPS, |
|
}, |
|
}; |
|
|
|
module_pci_driver(als300_driver);
|
|
|