diff options
Diffstat (limited to 'ANDROID_3.4.5/sound/pci/nm256/nm256.c')
| -rw-r--r-- | ANDROID_3.4.5/sound/pci/nm256/nm256.c | 1768 |
1 files changed, 0 insertions, 1768 deletions
diff --git a/ANDROID_3.4.5/sound/pci/nm256/nm256.c b/ANDROID_3.4.5/sound/pci/nm256/nm256.c deleted file mode 100644 index ade2c64b..00000000 --- a/ANDROID_3.4.5/sound/pci/nm256/nm256.c +++ /dev/null @@ -1,1768 +0,0 @@ -/* - * Driver for NeoMagic 256AV and 256ZX chipsets. - * Copyright (c) 2000 by Takashi Iwai <tiwai@suse.de> - * - * Based on nm256_audio.c OSS driver in linux kernel. - * The original author of OSS nm256 driver wishes to remain anonymous, - * so I just put my acknoledgment to him/her here. - * The original author's web page is found at - * http://www.uglx.org/sony.html - * - * - * 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 - */ - -#include <asm/io.h> -#include <linux/delay.h> -#include <linux/interrupt.h> -#include <linux/init.h> -#include <linux/pci.h> -#include <linux/slab.h> -#include <linux/module.h> -#include <linux/mutex.h> - -#include <sound/core.h> -#include <sound/info.h> -#include <sound/control.h> -#include <sound/pcm.h> -#include <sound/ac97_codec.h> -#include <sound/initval.h> - -#define CARD_NAME "NeoMagic 256AV/ZX" -#define DRIVER_NAME "NM256" - -MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>"); -MODULE_DESCRIPTION("NeoMagic NM256AV/ZX"); -MODULE_LICENSE("GPL"); -MODULE_SUPPORTED_DEVICE("{{NeoMagic,NM256AV}," - "{NeoMagic,NM256ZX}}"); - -/* - * some compile conditions. - */ - -static int index = SNDRV_DEFAULT_IDX1; /* Index */ -static char *id = SNDRV_DEFAULT_STR1; /* ID for this card */ -static int playback_bufsize = 16; -static int capture_bufsize = 16; -static bool force_ac97; /* disabled as default */ -static int buffer_top; /* not specified */ -static bool use_cache; /* disabled */ -static bool vaio_hack; /* disabled */ -static bool reset_workaround; -static bool reset_workaround_2; - -module_param(index, int, 0444); -MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard."); -module_param(id, charp, 0444); -MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard."); -module_param(playback_bufsize, int, 0444); -MODULE_PARM_DESC(playback_bufsize, "DAC frame size in kB for " CARD_NAME " soundcard."); -module_param(capture_bufsize, int, 0444); -MODULE_PARM_DESC(capture_bufsize, "ADC frame size in kB for " CARD_NAME " soundcard."); -module_param(force_ac97, bool, 0444); -MODULE_PARM_DESC(force_ac97, "Force to use AC97 codec for " CARD_NAME " soundcard."); -module_param(buffer_top, int, 0444); -MODULE_PARM_DESC(buffer_top, "Set the top address of audio buffer for " CARD_NAME " soundcard."); -module_param(use_cache, bool, 0444); -MODULE_PARM_DESC(use_cache, "Enable the cache for coefficient table access."); -module_param(vaio_hack, bool, 0444); -MODULE_PARM_DESC(vaio_hack, "Enable workaround for Sony VAIO notebooks."); -module_param(reset_workaround, bool, 0444); -MODULE_PARM_DESC(reset_workaround, "Enable AC97 RESET workaround for some laptops."); -module_param(reset_workaround_2, bool, 0444); -MODULE_PARM_DESC(reset_workaround_2, "Enable extended AC97 RESET workaround for some other laptops."); - -/* just for backward compatibility */ -static bool enable; -module_param(enable, bool, 0444); - - - -/* - * hw definitions - */ - -/* The BIOS signature. */ -#define NM_SIGNATURE 0x4e4d0000 -/* Signature mask. */ -#define NM_SIG_MASK 0xffff0000 - -/* Size of the second memory area. */ -#define NM_PORT2_SIZE 4096 - -/* The base offset of the mixer in the second memory area. */ -#define NM_MIXER_OFFSET 0x600 - -/* The maximum size of a coefficient entry. */ -#define NM_MAX_PLAYBACK_COEF_SIZE 0x5000 -#define NM_MAX_RECORD_COEF_SIZE 0x1260 - -/* The interrupt register. */ -#define NM_INT_REG 0xa04 -/* And its bits. */ -#define NM_PLAYBACK_INT 0x40 -#define NM_RECORD_INT 0x100 -#define NM_MISC_INT_1 0x4000 -#define NM_MISC_INT_2 0x1 -#define NM_ACK_INT(chip, X) snd_nm256_writew(chip, NM_INT_REG, (X) << 1) - -/* The AV's "mixer ready" status bit and location. */ -#define NM_MIXER_STATUS_OFFSET 0xa04 -#define NM_MIXER_READY_MASK 0x0800 -#define NM_MIXER_PRESENCE 0xa06 -#define NM_PRESENCE_MASK 0x0050 -#define NM_PRESENCE_VALUE 0x0040 - -/* - * For the ZX. It uses the same interrupt register, but it holds 32 - * bits instead of 16. - */ -#define NM2_PLAYBACK_INT 0x10000 -#define NM2_RECORD_INT 0x80000 -#define NM2_MISC_INT_1 0x8 -#define NM2_MISC_INT_2 0x2 -#define NM2_ACK_INT(chip, X) snd_nm256_writel(chip, NM_INT_REG, (X)) - -/* The ZX's "mixer ready" status bit and location. */ -#define NM2_MIXER_STATUS_OFFSET 0xa06 -#define NM2_MIXER_READY_MASK 0x0800 - -/* The playback registers start from here. */ -#define NM_PLAYBACK_REG_OFFSET 0x0 -/* The record registers start from here. */ -#define NM_RECORD_REG_OFFSET 0x200 - -/* The rate register is located 2 bytes from the start of the register area. */ -#define NM_RATE_REG_OFFSET 2 - -/* Mono/stereo flag, number of bits on playback, and rate mask. */ -#define NM_RATE_STEREO 1 -#define NM_RATE_BITS_16 2 -#define NM_RATE_MASK 0xf0 - -/* Playback enable register. */ -#define NM_PLAYBACK_ENABLE_REG (NM_PLAYBACK_REG_OFFSET + 0x1) -#define NM_PLAYBACK_ENABLE_FLAG 1 -#define NM_PLAYBACK_ONESHOT 2 -#define NM_PLAYBACK_FREERUN 4 - -/* Mutes the audio output. */ -#define NM_AUDIO_MUTE_REG (NM_PLAYBACK_REG_OFFSET + 0x18) -#define NM_AUDIO_MUTE_LEFT 0x8000 -#define NM_AUDIO_MUTE_RIGHT 0x0080 - -/* Recording enable register. */ -#define NM_RECORD_ENABLE_REG (NM_RECORD_REG_OFFSET + 0) -#define NM_RECORD_ENABLE_FLAG 1 -#define NM_RECORD_FREERUN 2 - -/* coefficient buffer pointer */ -#define NM_COEFF_START_OFFSET 0x1c -#define NM_COEFF_END_OFFSET 0x20 - -/* DMA buffer offsets */ -#define NM_RBUFFER_START (NM_RECORD_REG_OFFSET + 0x4) -#define NM_RBUFFER_END (NM_RECORD_REG_OFFSET + 0x10) -#define NM_RBUFFER_WMARK (NM_RECORD_REG_OFFSET + 0xc) -#define NM_RBUFFER_CURRP (NM_RECORD_REG_OFFSET + 0x8) - -#define NM_PBUFFER_START (NM_PLAYBACK_REG_OFFSET + 0x4) -#define NM_PBUFFER_END (NM_PLAYBACK_REG_OFFSET + 0x14) -#define NM_PBUFFER_WMARK (NM_PLAYBACK_REG_OFFSET + 0xc) -#define NM_PBUFFER_CURRP (NM_PLAYBACK_REG_OFFSET + 0x8) - -struct nm256_stream { - - struct nm256 *chip; - struct snd_pcm_substream *substream; - int running; - int suspended; - - u32 buf; /* offset from chip->buffer */ - int bufsize; /* buffer size in bytes */ - void __iomem *bufptr; /* mapped pointer */ - unsigned long bufptr_addr; /* physical address of the mapped pointer */ - - int dma_size; /* buffer size of the substream in bytes */ - int period_size; /* period size in bytes */ - int periods; /* # of periods */ - int shift; /* bit shifts */ - int cur_period; /* current period # */ - -}; - -struct nm256 { - - struct snd_card *card; - - void __iomem *cport; /* control port */ - struct resource *res_cport; /* its resource */ - unsigned long cport_addr; /* physical address */ - - void __iomem *buffer; /* buffer */ - struct resource *res_buffer; /* its resource */ - unsigned long buffer_addr; /* buffer phyiscal address */ - - u32 buffer_start; /* start offset from pci resource 0 */ - u32 buffer_end; /* end offset */ - u32 buffer_size; /* total buffer size */ - - u32 all_coeff_buf; /* coefficient buffer */ - u32 coeff_buf[2]; /* coefficient buffer for each stream */ - - unsigned int coeffs_current: 1; /* coeff. table is loaded? */ - unsigned int use_cache: 1; /* use one big coef. table */ - unsigned int reset_workaround: 1; /* Workaround for some laptops to avoid freeze */ - unsigned int reset_workaround_2: 1; /* Extended workaround for some other laptops to avoid freeze */ - unsigned int in_resume: 1; - - int mixer_base; /* register offset of ac97 mixer */ - int mixer_status_offset; /* offset of mixer status reg. */ - int mixer_status_mask; /* bit mask to test the mixer status */ - - int irq; - int irq_acks; - irq_handler_t interrupt; - int badintrcount; /* counter to check bogus interrupts */ - struct mutex irq_mutex; - - struct nm256_stream streams[2]; - - struct snd_ac97 *ac97; - unsigned short *ac97_regs; /* register caches, only for valid regs */ - - struct snd_pcm *pcm; - - struct pci_dev *pci; - - spinlock_t reg_lock; - -}; - - -/* - * include coefficient table - */ -#include "nm256_coef.c" - - -/* - * PCI ids - */ -static DEFINE_PCI_DEVICE_TABLE(snd_nm256_ids) = { - {PCI_VDEVICE(NEOMAGIC, PCI_DEVICE_ID_NEOMAGIC_NM256AV_AUDIO), 0}, - {PCI_VDEVICE(NEOMAGIC, PCI_DEVICE_ID_NEOMAGIC_NM256ZX_AUDIO), 0}, - {PCI_VDEVICE(NEOMAGIC, PCI_DEVICE_ID_NEOMAGIC_NM256XL_PLUS_AUDIO), 0}, - {0,}, -}; - -MODULE_DEVICE_TABLE(pci, snd_nm256_ids); - - -/* - * lowlvel stuffs - */ - -static inline u8 -snd_nm256_readb(struct nm256 *chip, int offset) -{ - return readb(chip->cport + offset); -} - -static inline u16 -snd_nm256_readw(struct nm256 *chip, int offset) -{ - return readw(chip->cport + offset); -} - -static inline u32 -snd_nm256_readl(struct nm256 *chip, int offset) -{ - return readl(chip->cport + offset); -} - -static inline void -snd_nm256_writeb(struct nm256 *chip, int offset, u8 val) -{ - writeb(val, chip->cport + offset); -} - -static inline void -snd_nm256_writew(struct nm256 *chip, int offset, u16 val) -{ - writew(val, chip->cport + offset); -} - -static inline void -snd_nm256_writel(struct nm256 *chip, int offset, u32 val) -{ - writel(val, chip->cport + offset); -} - -static inline void -snd_nm256_write_buffer(struct nm256 *chip, void *src, int offset, int size) -{ - offset -= chip->buffer_start; -#ifdef CONFIG_SND_DEBUG - if (offset < 0 || offset >= chip->buffer_size) { - snd_printk(KERN_ERR "write_buffer invalid offset = %d size = %d\n", - offset, size); - return; - } -#endif - memcpy_toio(chip->buffer + offset, src, size); -} - -/* - * coefficient handlers -- what a magic! - */ - -static u16 -snd_nm256_get_start_offset(int which) -{ - u16 offset = 0; - while (which-- > 0) - offset += coefficient_sizes[which]; - return offset; -} - -static void -snd_nm256_load_one_coefficient(struct nm256 *chip, int stream, u32 port, int which) -{ - u32 coeff_buf = chip->coeff_buf[stream]; - u16 offset = snd_nm256_get_start_offset(which); - u16 size = coefficient_sizes[which]; - - snd_nm256_write_buffer(chip, coefficients + offset, coeff_buf, size); - snd_nm256_writel(chip, port, coeff_buf); - /* ??? Record seems to behave differently than playback. */ - if (stream == SNDRV_PCM_STREAM_PLAYBACK) - size--; - snd_nm256_writel(chip, port + 4, coeff_buf + size); -} - -static void -snd_nm256_load_coefficient(struct nm256 *chip, int stream, int number) -{ - /* The enable register for the specified engine. */ - u32 poffset = (stream == SNDRV_PCM_STREAM_CAPTURE ? - NM_RECORD_ENABLE_REG : NM_PLAYBACK_ENABLE_REG); - u32 addr = NM_COEFF_START_OFFSET; - - addr += (stream == SNDRV_PCM_STREAM_CAPTURE ? - NM_RECORD_REG_OFFSET : NM_PLAYBACK_REG_OFFSET); - - if (snd_nm256_readb(chip, poffset) & 1) { - snd_printd("NM256: Engine was enabled while loading coefficients!\n"); - return; - } - - /* The recording engine uses coefficient values 8-15. */ - number &= 7; - if (stream == SNDRV_PCM_STREAM_CAPTURE) - number += 8; - - if (! chip->use_cache) { - snd_nm256_load_one_coefficient(chip, stream, addr, number); - return; - } - if (! chip->coeffs_current) { - snd_nm256_write_buffer(chip, coefficients, chip->all_coeff_buf, - NM_TOTAL_COEFF_COUNT * 4); - chip->coeffs_current = 1; - } else { - u32 base = chip->all_coeff_buf; - u32 offset = snd_nm256_get_start_offset(number); - u32 end_offset = offset + coefficient_sizes[number]; - snd_nm256_writel(chip, addr, base + offset); - if (stream == SNDRV_PCM_STREAM_PLAYBACK) - end_offset--; - snd_nm256_writel(chip, addr + 4, base + end_offset); - } -} - - -/* The actual rates supported by the card. */ -static unsigned int samplerates[8] = { - 8000, 11025, 16000, 22050, 24000, 32000, 44100, 48000, -}; -static struct snd_pcm_hw_constraint_list constraints_rates = { - .count = ARRAY_SIZE(samplerates), - .list = samplerates, - .mask = 0, -}; - -/* - * return the index of the target rate - */ -static int -snd_nm256_fixed_rate(unsigned int rate) -{ - unsigned int i; - for (i = 0; i < ARRAY_SIZE(samplerates); i++) { - if (rate == samplerates[i]) - return i; - } - snd_BUG(); - return 0; -} - -/* - * set sample rate and format - */ -static void -snd_nm256_set_format(struct nm256 *chip, struct nm256_stream *s, - struct snd_pcm_substream *substream) -{ - struct snd_pcm_runtime *runtime = substream->runtime; - int rate_index = snd_nm256_fixed_rate(runtime->rate); - unsigned char ratebits = (rate_index << 4) & NM_RATE_MASK; - - s->shift = 0; - if (snd_pcm_format_width(runtime->format) == 16) { - ratebits |= NM_RATE_BITS_16; - s->shift++; - } - if (runtime->channels > 1) { - ratebits |= NM_RATE_STEREO; - s->shift++; - } - - runtime->rate = samplerates[rate_index]; - - switch (substream->stream) { - case SNDRV_PCM_STREAM_PLAYBACK: - snd_nm256_load_coefficient(chip, 0, rate_index); /* 0 = playback */ - snd_nm256_writeb(chip, - NM_PLAYBACK_REG_OFFSET + NM_RATE_REG_OFFSET, - ratebits); - break; - case SNDRV_PCM_STREAM_CAPTURE: - snd_nm256_load_coefficient(chip, 1, rate_index); /* 1 = record */ - snd_nm256_writeb(chip, - NM_RECORD_REG_OFFSET + NM_RATE_REG_OFFSET, - ratebits); - break; - } -} - -/* acquire interrupt */ -static int snd_nm256_acquire_irq(struct nm256 *chip) -{ - mutex_lock(&chip->irq_mutex); - if (chip->irq < 0) { - if (request_irq(chip->pci->irq, chip->interrupt, IRQF_SHARED, - KBUILD_MODNAME, chip)) { - snd_printk(KERN_ERR "unable to grab IRQ %d\n", chip->pci->irq); - mutex_unlock(&chip->irq_mutex); - return -EBUSY; - } - chip->irq = chip->pci->irq; - } - chip->irq_acks++; - mutex_unlock(&chip->irq_mutex); - return 0; -} - -/* release interrupt */ -static void snd_nm256_release_irq(struct nm256 *chip) -{ - mutex_lock(&chip->irq_mutex); - if (chip->irq_acks > 0) - chip->irq_acks--; - if (chip->irq_acks == 0 && chip->irq >= 0) { - free_irq(chip->irq, chip); - chip->irq = -1; - } - mutex_unlock(&chip->irq_mutex); -} - -/* - * start / stop - */ - -/* update the watermark (current period) */ -static void snd_nm256_pcm_mark(struct nm256 *chip, struct nm256_stream *s, int reg) -{ - s->cur_period++; - s->cur_period %= s->periods; - snd_nm256_writel(chip, reg, s->buf + s->cur_period * s->period_size); -} - -#define snd_nm256_playback_mark(chip, s) snd_nm256_pcm_mark(chip, s, NM_PBUFFER_WMARK) -#define snd_nm256_capture_mark(chip, s) snd_nm256_pcm_mark(chip, s, NM_RBUFFER_WMARK) - -static void -snd_nm256_playback_start(struct nm256 *chip, struct nm256_stream *s, - struct snd_pcm_substream *substream) -{ - /* program buffer pointers */ - snd_nm256_writel(chip, NM_PBUFFER_START, s->buf); - snd_nm256_writel(chip, NM_PBUFFER_END, s->buf + s->dma_size - (1 << s->shift)); - snd_nm256_writel(chip, NM_PBUFFER_CURRP, s->buf); - snd_nm256_playback_mark(chip, s); - - /* Enable playback engine and interrupts. */ - snd_nm256_writeb(chip, NM_PLAYBACK_ENABLE_REG, - NM_PLAYBACK_ENABLE_FLAG | NM_PLAYBACK_FREERUN); - /* Enable both channels. */ - snd_nm256_writew(chip, NM_AUDIO_MUTE_REG, 0x0); -} - -static void -snd_nm256_capture_start(struct nm256 *chip, struct nm256_stream *s, - struct snd_pcm_substream *substream) -{ - /* program buffer pointers */ - snd_nm256_writel(chip, NM_RBUFFER_START, s->buf); - snd_nm256_writel(chip, NM_RBUFFER_END, s->buf + s->dma_size); - snd_nm256_writel(chip, NM_RBUFFER_CURRP, s->buf); - snd_nm256_capture_mark(chip, s); - - /* Enable playback engine and interrupts. */ - snd_nm256_writeb(chip, NM_RECORD_ENABLE_REG, - NM_RECORD_ENABLE_FLAG | NM_RECORD_FREERUN); -} - -/* Stop the play engine. */ -static void -snd_nm256_playback_stop(struct nm256 *chip) -{ - /* Shut off sound from both channels. */ - snd_nm256_writew(chip, NM_AUDIO_MUTE_REG, - NM_AUDIO_MUTE_LEFT | NM_AUDIO_MUTE_RIGHT); - /* Disable play engine. */ - snd_nm256_writeb(chip, NM_PLAYBACK_ENABLE_REG, 0); -} - -static void -snd_nm256_capture_stop(struct nm256 *chip) -{ - /* Disable recording engine. */ - snd_nm256_writeb(chip, NM_RECORD_ENABLE_REG, 0); -} - -static int -snd_nm256_playback_trigger(struct snd_pcm_substream *substream, int cmd) -{ - struct nm256 *chip = snd_pcm_substream_chip(substream); - struct nm256_stream *s = substream->runtime->private_data; - int err = 0; - - if (snd_BUG_ON(!s)) - return -ENXIO; - - spin_lock(&chip->reg_lock); - switch (cmd) { - case SNDRV_PCM_TRIGGER_RESUME: - s->suspended = 0; - /* fallthru */ - case SNDRV_PCM_TRIGGER_START: - if (! s->running) { - snd_nm256_playback_start(chip, s, substream); - s->running = 1; - } - break; - case SNDRV_PCM_TRIGGER_SUSPEND: - s->suspended = 1; - /* fallthru */ - case SNDRV_PCM_TRIGGER_STOP: - if (s->running) { - snd_nm256_playback_stop(chip); - s->running = 0; - } - break; - default: - err = -EINVAL; - break; - } - spin_unlock(&chip->reg_lock); - return err; -} - -static int -snd_nm256_capture_trigger(struct snd_pcm_substream *substream, int cmd) -{ - struct nm256 *chip = snd_pcm_substream_chip(substream); - struct nm256_stream *s = substream->runtime->private_data; - int err = 0; - - if (snd_BUG_ON(!s)) - return -ENXIO; - - spin_lock(&chip->reg_lock); - switch (cmd) { - case SNDRV_PCM_TRIGGER_START: - case SNDRV_PCM_TRIGGER_RESUME: - if (! s->running) { - snd_nm256_capture_start(chip, s, substream); - s->running = 1; - } - break; - case SNDRV_PCM_TRIGGER_STOP: - case SNDRV_PCM_TRIGGER_SUSPEND: - if (s->running) { - snd_nm256_capture_stop(chip); - s->running = 0; - } - break; - default: - err = -EINVAL; - break; - } - spin_unlock(&chip->reg_lock); - return err; -} - - -/* - * prepare playback/capture channel - */ -static int snd_nm256_pcm_prepare(struct snd_pcm_substream *substream) -{ - struct nm256 *chip = snd_pcm_substream_chip(substream); - struct snd_pcm_runtime *runtime = substream->runtime; - struct nm256_stream *s = runtime->private_data; - - if (snd_BUG_ON(!s)) - return -ENXIO; - s->dma_size = frames_to_bytes(runtime, substream->runtime->buffer_size); - s->period_size = frames_to_bytes(runtime, substream->runtime->period_size); - s->periods = substream->runtime->periods; - s->cur_period = 0; - - spin_lock_irq(&chip->reg_lock); - s->running = 0; - snd_nm256_set_format(chip, s, substream); - spin_unlock_irq(&chip->reg_lock); - - return 0; -} - - -/* - * get the current pointer - */ -static snd_pcm_uframes_t -snd_nm256_playback_pointer(struct snd_pcm_substream *substream) -{ - struct nm256 *chip = snd_pcm_substream_chip(substream); - struct nm256_stream *s = substream->runtime->private_data; - unsigned long curp; - - if (snd_BUG_ON(!s)) - return 0; - curp = snd_nm256_readl(chip, NM_PBUFFER_CURRP) - (unsigned long)s->buf; - curp %= s->dma_size; - return bytes_to_frames(substream->runtime, curp); -} - -static snd_pcm_uframes_t -snd_nm256_capture_pointer(struct snd_pcm_substream *substream) -{ - struct nm256 *chip = snd_pcm_substream_chip(substream); - struct nm256_stream *s = substream->runtime->private_data; - unsigned long curp; - - if (snd_BUG_ON(!s)) - return 0; - curp = snd_nm256_readl(chip, NM_RBUFFER_CURRP) - (unsigned long)s->buf; - curp %= s->dma_size; - return bytes_to_frames(substream->runtime, curp); -} - -/* Remapped I/O space can be accessible as pointer on i386 */ -/* This might be changed in the future */ -#ifndef __i386__ -/* - * silence / copy for playback - */ -static int -snd_nm256_playback_silence(struct snd_pcm_substream *substream, - int channel, /* not used (interleaved data) */ - snd_pcm_uframes_t pos, - snd_pcm_uframes_t count) -{ - struct snd_pcm_runtime *runtime = substream->runtime; - struct nm256_stream *s = runtime->private_data; - count = frames_to_bytes(runtime, count); - pos = frames_to_bytes(runtime, pos); - memset_io(s->bufptr + pos, 0, count); - return 0; -} - -static int -snd_nm256_playback_copy(struct snd_pcm_substream *substream, - int channel, /* not used (interleaved data) */ - snd_pcm_uframes_t pos, - void __user *src, - snd_pcm_uframes_t count) -{ - struct snd_pcm_runtime *runtime = substream->runtime; - struct nm256_stream *s = runtime->private_data; - count = frames_to_bytes(runtime, count); - pos = frames_to_bytes(runtime, pos); - if (copy_from_user_toio(s->bufptr + pos, src, count)) - return -EFAULT; - return 0; -} - -/* - * copy to user - */ -static int -snd_nm256_capture_copy(struct snd_pcm_substream *substream, - int channel, /* not used (interleaved data) */ - snd_pcm_uframes_t pos, - void __user *dst, - snd_pcm_uframes_t count) -{ - struct snd_pcm_runtime *runtime = substream->runtime; - struct nm256_stream *s = runtime->private_data; - count = frames_to_bytes(runtime, count); - pos = frames_to_bytes(runtime, pos); - if (copy_to_user_fromio(dst, s->bufptr + pos, count)) - return -EFAULT; - return 0; -} - -#endif /* !__i386__ */ - - -/* - * update playback/capture watermarks - */ - -/* spinlock held! */ -static void -snd_nm256_playback_update(struct nm256 *chip) -{ - struct nm256_stream *s; - - s = &chip->streams[SNDRV_PCM_STREAM_PLAYBACK]; - if (s->running && s->substream) { - spin_unlock(&chip->reg_lock); - snd_pcm_period_elapsed(s->substream); - spin_lock(&chip->reg_lock); - snd_nm256_playback_mark(chip, s); - } -} - -/* spinlock held! */ -static void -snd_nm256_capture_update(struct nm256 *chip) -{ - struct nm256_stream *s; - - s = &chip->streams[SNDRV_PCM_STREAM_CAPTURE]; - if (s->running && s->substream) { - spin_unlock(&chip->reg_lock); - snd_pcm_period_elapsed(s->substream); - spin_lock(&chip->reg_lock); - snd_nm256_capture_mark(chip, s); - } -} - -/* - * hardware info - */ -static struct snd_pcm_hardware snd_nm256_playback = -{ - .info = SNDRV_PCM_INFO_MMAP_IOMEM |SNDRV_PCM_INFO_MMAP_VALID | - SNDRV_PCM_INFO_INTERLEAVED | - /*SNDRV_PCM_INFO_PAUSE |*/ - SNDRV_PCM_INFO_RESUME, - .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE, - .rates = SNDRV_PCM_RATE_KNOT/*24k*/ | SNDRV_PCM_RATE_8000_48000, - .rate_min = 8000, - .rate_max = 48000, - .channels_min = 1, - .channels_max = 2, - .periods_min = 2, - .periods_max = 1024, - .buffer_bytes_max = 128 * 1024, - .period_bytes_min = 256, - .period_bytes_max = 128 * 1024, -}; - -static struct snd_pcm_hardware snd_nm256_capture = -{ - .info = SNDRV_PCM_INFO_MMAP_IOMEM | SNDRV_PCM_INFO_MMAP_VALID | - SNDRV_PCM_INFO_INTERLEAVED | - /*SNDRV_PCM_INFO_PAUSE |*/ - SNDRV_PCM_INFO_RESUME, - .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE, - .rates = SNDRV_PCM_RATE_KNOT/*24k*/ | SNDRV_PCM_RATE_8000_48000, - .rate_min = 8000, - .rate_max = 48000, - .channels_min = 1, - .channels_max = 2, - .periods_min = 2, - .periods_max = 1024, - .buffer_bytes_max = 128 * 1024, - .period_bytes_min = 256, - .period_bytes_max = 128 * 1024, -}; - - -/* set dma transfer size */ -static int snd_nm256_pcm_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *hw_params) -{ - /* area and addr are already set and unchanged */ - substream->runtime->dma_bytes = params_buffer_bytes(hw_params); - return 0; -} - -/* - * open - */ -static void snd_nm256_setup_stream(struct nm256 *chip, struct nm256_stream *s, - struct snd_pcm_substream *substream, - struct snd_pcm_hardware *hw_ptr) -{ - struct snd_pcm_runtime *runtime = substream->runtime; - - s->running = 0; - runtime->hw = *hw_ptr; - runtime->hw.buffer_bytes_max = s->bufsize; - runtime->hw.period_bytes_max = s->bufsize / 2; - runtime->dma_area = (void __force *) s->bufptr; - runtime->dma_addr = s->bufptr_addr; - runtime->dma_bytes = s->bufsize; - runtime->private_data = s; - s->substream = substream; - - snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, - &constraints_rates); -} - -static int -snd_nm256_playback_open(struct snd_pcm_substream *substream) -{ - struct nm256 *chip = snd_pcm_substream_chip(substream); - - if (snd_nm256_acquire_irq(chip) < 0) - return -EBUSY; - snd_nm256_setup_stream(chip, &chip->streams[SNDRV_PCM_STREAM_PLAYBACK], - substream, &snd_nm256_playback); - return 0; -} - -static int -snd_nm256_capture_open(struct snd_pcm_substream *substream) -{ - struct nm256 *chip = snd_pcm_substream_chip(substream); - - if (snd_nm256_acquire_irq(chip) < 0) - return -EBUSY; - snd_nm256_setup_stream(chip, &chip->streams[SNDRV_PCM_STREAM_CAPTURE], - substream, &snd_nm256_capture); - return 0; -} - -/* - * close - we don't have to do special.. - */ -static int -snd_nm256_playback_close(struct snd_pcm_substream *substream) -{ - struct nm256 *chip = snd_pcm_substream_chip(substream); - - snd_nm256_release_irq(chip); - return 0; -} - - -static int -snd_nm256_capture_close(struct snd_pcm_substream *substream) -{ - struct nm256 *chip = snd_pcm_substream_chip(substream); - - snd_nm256_release_irq(chip); - return 0; -} - -/* - * create a pcm instance - */ -static struct snd_pcm_ops snd_nm256_playback_ops = { - .open = snd_nm256_playback_open, - .close = snd_nm256_playback_close, - .ioctl = snd_pcm_lib_ioctl, - .hw_params = snd_nm256_pcm_hw_params, - .prepare = snd_nm256_pcm_prepare, - .trigger = snd_nm256_playback_trigger, - .pointer = snd_nm256_playback_pointer, -#ifndef __i386__ - .copy = snd_nm256_playback_copy, - .silence = snd_nm256_playback_silence, -#endif - .mmap = snd_pcm_lib_mmap_iomem, -}; - -static struct snd_pcm_ops snd_nm256_capture_ops = { - .open = snd_nm256_capture_open, - .close = snd_nm256_capture_close, - .ioctl = snd_pcm_lib_ioctl, - .hw_params = snd_nm256_pcm_hw_params, - .prepare = snd_nm256_pcm_prepare, - .trigger = snd_nm256_capture_trigger, - .pointer = snd_nm256_capture_pointer, -#ifndef __i386__ - .copy = snd_nm256_capture_copy, -#endif - .mmap = snd_pcm_lib_mmap_iomem, -}; - -static int __devinit -snd_nm256_pcm(struct nm256 *chip, int device) -{ - struct snd_pcm *pcm; - int i, err; - - for (i = 0; i < 2; i++) { - struct nm256_stream *s = &chip->streams[i]; - s->bufptr = chip->buffer + (s->buf - chip->buffer_start); - s->bufptr_addr = chip->buffer_addr + (s->buf - chip->buffer_start); - } - - err = snd_pcm_new(chip->card, chip->card->driver, device, - 1, 1, &pcm); - if (err < 0) - return err; - - snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_nm256_playback_ops); - snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_nm256_capture_ops); - - pcm->private_data = chip; - pcm->info_flags = 0; - chip->pcm = pcm; - - return 0; -} - - -/* - * Initialize the hardware. - */ -static void -snd_nm256_init_chip(struct nm256 *chip) -{ - /* Reset everything. */ - snd_nm256_writeb(chip, 0x0, 0x11); - snd_nm256_writew(chip, 0x214, 0); - /* stop sounds.. */ - //snd_nm256_playback_stop(chip); - //snd_nm256_capture_stop(chip); -} - - -static irqreturn_t -snd_nm256_intr_check(struct nm256 *chip) -{ - if (chip->badintrcount++ > 1000) { - /* - * I'm not sure if the best thing is to stop the card from - * playing or just release the interrupt (after all, we're in - * a bad situation, so doing fancy stuff may not be such a good - * idea). - * - * I worry about the card engine continuing to play noise - * over and over, however--that could become a very - * obnoxious problem. And we know that when this usually - * happens things are fairly safe, it just means the user's - * inserted a PCMCIA card and someone's spamming us with IRQ 9s. - */ - if (chip->streams[SNDRV_PCM_STREAM_PLAYBACK].running) - snd_nm256_playback_stop(chip); - if (chip->streams[SNDRV_PCM_STREAM_CAPTURE].running) - snd_nm256_capture_stop(chip); - chip->badintrcount = 0; - return IRQ_HANDLED; - } - return IRQ_NONE; -} - -/* - * Handle a potential interrupt for the device referred to by DEV_ID. - * - * I don't like the cut-n-paste job here either between the two routines, - * but there are sufficient differences between the two interrupt handlers - * that parameterizing it isn't all that great either. (Could use a macro, - * I suppose...yucky bleah.) - */ - -static irqreturn_t -snd_nm256_interrupt(int irq, void *dev_id) -{ - struct nm256 *chip = dev_id; - u16 status; - u8 cbyte; - - status = snd_nm256_readw(chip, NM_INT_REG); - - /* Not ours. */ - if (status == 0) - return snd_nm256_intr_check(chip); - - chip->badintrcount = 0; - - /* Rather boring; check for individual interrupts and process them. */ - - spin_lock(&chip->reg_lock); - if (status & NM_PLAYBACK_INT) { - status &= ~NM_PLAYBACK_INT; - NM_ACK_INT(chip, NM_PLAYBACK_INT); - snd_nm256_playback_update(chip); - } - - if (status & NM_RECORD_INT) { - status &= ~NM_RECORD_INT; - NM_ACK_INT(chip, NM_RECORD_INT); - snd_nm256_capture_update(chip); - } - - if (status & NM_MISC_INT_1) { - status &= ~NM_MISC_INT_1; - NM_ACK_INT(chip, NM_MISC_INT_1); - snd_printd("NM256: Got misc interrupt #1\n"); - snd_nm256_writew(chip, NM_INT_REG, 0x8000); - cbyte = snd_nm256_readb(chip, 0x400); - snd_nm256_writeb(chip, 0x400, cbyte | 2); - } - - if (status & NM_MISC_INT_2) { - status &= ~NM_MISC_INT_2; - NM_ACK_INT(chip, NM_MISC_INT_2); - snd_printd("NM256: Got misc interrupt #2\n"); - cbyte = snd_nm256_readb(chip, 0x400); - snd_nm256_writeb(chip, 0x400, cbyte & ~2); - } - - /* Unknown interrupt. */ - if (status) { - snd_printd("NM256: Fire in the hole! Unknown status 0x%x\n", - status); - /* Pray. */ - NM_ACK_INT(chip, status); - } - - spin_unlock(&chip->reg_lock); - return IRQ_HANDLED; -} - -/* - * Handle a potential interrupt for the device referred to by DEV_ID. - * This handler is for the 256ZX, and is very similar to the non-ZX - * routine. - */ - -static irqreturn_t -snd_nm256_interrupt_zx(int irq, void *dev_id) -{ - struct nm256 *chip = dev_id; - u32 status; - u8 cbyte; - - status = snd_nm256_readl(chip, NM_INT_REG); - - /* Not ours. */ - if (status == 0) - return snd_nm256_intr_check(chip); - - chip->badintrcount = 0; - - /* Rather boring; check for individual interrupts and process them. */ - - spin_lock(&chip->reg_lock); - if (status & NM2_PLAYBACK_INT) { - status &= ~NM2_PLAYBACK_INT; - NM2_ACK_INT(chip, NM2_PLAYBACK_INT); - snd_nm256_playback_update(chip); - } - - if (status & NM2_RECORD_INT) { - status &= ~NM2_RECORD_INT; - NM2_ACK_INT(chip, NM2_RECORD_INT); - snd_nm256_capture_update(chip); - } - - if (status & NM2_MISC_INT_1) { - status &= ~NM2_MISC_INT_1; - NM2_ACK_INT(chip, NM2_MISC_INT_1); - snd_printd("NM256: Got misc interrupt #1\n"); - cbyte = snd_nm256_readb(chip, 0x400); - snd_nm256_writeb(chip, 0x400, cbyte | 2); - } - - if (status & NM2_MISC_INT_2) { - status &= ~NM2_MISC_INT_2; - NM2_ACK_INT(chip, NM2_MISC_INT_2); - snd_printd("NM256: Got misc interrupt #2\n"); - cbyte = snd_nm256_readb(chip, 0x400); - snd_nm256_writeb(chip, 0x400, cbyte & ~2); - } - - /* Unknown interrupt. */ - if (status) { - snd_printd("NM256: Fire in the hole! Unknown status 0x%x\n", - status); - /* Pray. */ - NM2_ACK_INT(chip, status); - } - - spin_unlock(&chip->reg_lock); - return IRQ_HANDLED; -} - -/* - * AC97 interface - */ - -/* - * Waits for the mixer to become ready to be written; returns a zero value - * if it timed out. - */ -static int -snd_nm256_ac97_ready(struct nm256 *chip) -{ - int timeout = 10; - u32 testaddr; - u16 testb; - - testaddr = chip->mixer_status_offset; - testb = chip->mixer_status_mask; - - /* - * Loop around waiting for the mixer to become ready. - */ - while (timeout-- > 0) { - if ((snd_nm256_readw(chip, testaddr) & testb) == 0) - return 1; - udelay(100); - } - return 0; -} - -/* - * Initial register values to be written to the AC97 mixer. - * While most of these are identical to the reset values, we do this - * so that we have most of the register contents cached--this avoids - * reading from the mixer directly (which seems to be problematic, - * probably due to ignorance). - */ - -struct initialValues { - unsigned short reg; - unsigned short value; -}; - -static struct initialValues nm256_ac97_init_val[] = -{ - { AC97_MASTER, 0x8000 }, - { AC97_HEADPHONE, 0x8000 }, - { AC97_MASTER_MONO, 0x8000 }, - { AC97_PC_BEEP, 0x8000 }, - { AC97_PHONE, 0x8008 }, - { AC97_MIC, 0x8000 }, - { AC97_LINE, 0x8808 }, - { AC97_CD, 0x8808 }, - { AC97_VIDEO, 0x8808 }, - { AC97_AUX, 0x8808 }, - { AC97_PCM, 0x8808 }, - { AC97_REC_SEL, 0x0000 }, - { AC97_REC_GAIN, 0x0B0B }, - { AC97_GENERAL_PURPOSE, 0x0000 }, - { AC97_3D_CONTROL, 0x8000 }, - { AC97_VENDOR_ID1, 0x8384 }, - { AC97_VENDOR_ID2, 0x7609 }, -}; - -static int nm256_ac97_idx(unsigned short reg) -{ - int i; - for (i = 0; i < ARRAY_SIZE(nm256_ac97_init_val); i++) - if (nm256_ac97_init_val[i].reg == reg) - return i; - return -1; -} - -/* - * some nm256 easily crash when reading from mixer registers - * thus we're treating it as a write-only mixer and cache the - * written values - */ -static unsigned short -snd_nm256_ac97_read(struct snd_ac97 *ac97, unsigned short reg) -{ - struct nm256 *chip = ac97->private_data; - int idx = nm256_ac97_idx(reg); - - if (idx < 0) - return 0; - return chip->ac97_regs[idx]; -} - -/* - */ -static void -snd_nm256_ac97_write(struct snd_ac97 *ac97, - unsigned short reg, unsigned short val) -{ - struct nm256 *chip = ac97->private_data; - int tries = 2; - int idx = nm256_ac97_idx(reg); - u32 base; - - if (idx < 0) - return; - - base = chip->mixer_base; - - snd_nm256_ac97_ready(chip); - - /* Wait for the write to take, too. */ - while (tries-- > 0) { - snd_nm256_writew(chip, base + reg, val); - msleep(1); /* a little delay here seems better.. */ - if (snd_nm256_ac97_ready(chip)) { - /* successful write: set cache */ - chip->ac97_regs[idx] = val; - return; - } - } - snd_printd("nm256: ac97 codec not ready..\n"); -} - -/* static resolution table */ -static struct snd_ac97_res_table nm256_res_table[] = { - { AC97_MASTER, 0x1f1f }, - { AC97_HEADPHONE, 0x1f1f }, - { AC97_MASTER_MONO, 0x001f }, - { AC97_PC_BEEP, 0x001f }, - { AC97_PHONE, 0x001f }, - { AC97_MIC, 0x001f }, - { AC97_LINE, 0x1f1f }, - { AC97_CD, 0x1f1f }, - { AC97_VIDEO, 0x1f1f }, - { AC97_AUX, 0x1f1f }, - { AC97_PCM, 0x1f1f }, - { AC97_REC_GAIN, 0x0f0f }, - { } /* terminator */ -}; - -/* initialize the ac97 into a known state */ -static void -snd_nm256_ac97_reset(struct snd_ac97 *ac97) -{ - struct nm256 *chip = ac97->private_data; - - /* Reset the mixer. 'Tis magic! */ - snd_nm256_writeb(chip, 0x6c0, 1); - if (! chip->reset_workaround) { - /* Dell latitude LS will lock up by this */ - snd_nm256_writeb(chip, 0x6cc, 0x87); - } - if (! chip->reset_workaround_2) { - /* Dell latitude CSx will lock up by this */ - snd_nm256_writeb(chip, 0x6cc, 0x80); - snd_nm256_writeb(chip, 0x6cc, 0x0); - } - if (! chip->in_resume) { - int i; - for (i = 0; i < ARRAY_SIZE(nm256_ac97_init_val); i++) { - /* preload the cache, so as to avoid even a single - * read of the mixer regs - */ - snd_nm256_ac97_write(ac97, nm256_ac97_init_val[i].reg, - nm256_ac97_init_val[i].value); - } - } -} - -/* create an ac97 mixer interface */ -static int __devinit -snd_nm256_mixer(struct nm256 *chip) -{ - struct snd_ac97_bus *pbus; - struct snd_ac97_template ac97; - int err; - static struct snd_ac97_bus_ops ops = { - .reset = snd_nm256_ac97_reset, - .write = snd_nm256_ac97_write, - .read = snd_nm256_ac97_read, - }; - - chip->ac97_regs = kcalloc(ARRAY_SIZE(nm256_ac97_init_val), - sizeof(short), GFP_KERNEL); - if (! chip->ac97_regs) - return -ENOMEM; - - if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0) - return err; - - memset(&ac97, 0, sizeof(ac97)); - ac97.scaps = AC97_SCAP_AUDIO; /* we support audio! */ - ac97.private_data = chip; - ac97.res_table = nm256_res_table; - pbus->no_vra = 1; - err = snd_ac97_mixer(pbus, &ac97, &chip->ac97); - if (err < 0) - return err; - if (! (chip->ac97->id & (0xf0000000))) { - /* looks like an invalid id */ - sprintf(chip->card->mixername, "%s AC97", chip->card->driver); - } - return 0; -} - -/* - * See if the signature left by the NM256 BIOS is intact; if so, we use - * the associated address as the end of our audio buffer in the video - * RAM. - */ - -static int __devinit -snd_nm256_peek_for_sig(struct nm256 *chip) -{ - /* The signature is located 1K below the end of video RAM. */ - void __iomem *temp; - /* Default buffer end is 5120 bytes below the top of RAM. */ - unsigned long pointer_found = chip->buffer_end - 0x1400; - u32 sig; - - temp = ioremap_nocache(chip->buffer_addr + chip->buffer_end - 0x400, 16); - if (temp == NULL) { - snd_printk(KERN_ERR "Unable to scan for card signature in video RAM\n"); - return -EBUSY; - } - - sig = readl(temp); - if ((sig & NM_SIG_MASK) == NM_SIGNATURE) { - u32 pointer = readl(temp + 4); - - /* - * If it's obviously invalid, don't use it - */ - if (pointer == 0xffffffff || - pointer < chip->buffer_size || - pointer > chip->buffer_end) { - snd_printk(KERN_ERR "invalid signature found: 0x%x\n", pointer); - iounmap(temp); - return -ENODEV; - } else { - pointer_found = pointer; - printk(KERN_INFO "nm256: found card signature in video RAM: 0x%x\n", - pointer); - } - } - - iounmap(temp); - chip->buffer_end = pointer_found; - - return 0; -} - -#ifdef CONFIG_PM -/* - * APM event handler, so the card is properly reinitialized after a power - * event. - */ -static int nm256_suspend(struct pci_dev *pci, pm_message_t state) -{ - struct snd_card *card = pci_get_drvdata(pci); - struct nm256 *chip = card->private_data; - - snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); - snd_pcm_suspend_all(chip->pcm); - snd_ac97_suspend(chip->ac97); - chip->coeffs_current = 0; - pci_disable_device(pci); - pci_save_state(pci); - pci_set_power_state(pci, pci_choose_state(pci, state)); - return 0; -} - -static int nm256_resume(struct pci_dev *pci) -{ - struct snd_card *card = pci_get_drvdata(pci); - struct nm256 *chip = card->private_data; - int i; - - /* Perform a full reset on the hardware */ - chip->in_resume = 1; - - pci_set_power_state(pci, PCI_D0); - pci_restore_state(pci); - if (pci_enable_device(pci) < 0) { - printk(KERN_ERR "nm256: pci_enable_device failed, " - "disabling device\n"); - snd_card_disconnect(card); - return -EIO; - } - pci_set_master(pci); - - snd_nm256_init_chip(chip); - - /* restore ac97 */ - snd_ac97_resume(chip->ac97); - - for (i = 0; i < 2; i++) { - struct nm256_stream *s = &chip->streams[i]; - if (s->substream && s->suspended) { - spin_lock_irq(&chip->reg_lock); - snd_nm256_set_format(chip, s, s->substream); - spin_unlock_irq(&chip->reg_lock); - } - } - - snd_power_change_state(card, SNDRV_CTL_POWER_D0); - chip->in_resume = 0; - return 0; -} -#endif /* CONFIG_PM */ - -static int snd_nm256_free(struct nm256 *chip) -{ - if (chip->streams[SNDRV_PCM_STREAM_PLAYBACK].running) - snd_nm256_playback_stop(chip); - if (chip->streams[SNDRV_PCM_STREAM_CAPTURE].running) - snd_nm256_capture_stop(chip); - - if (chip->irq >= 0) - free_irq(chip->irq, chip); - - if (chip->cport) - iounmap(chip->cport); - if (chip->buffer) - iounmap(chip->buffer); - release_and_free_resource(chip->res_cport); - release_and_free_resource(chip->res_buffer); - - pci_disable_device(chip->pci); - kfree(chip->ac97_regs); - kfree(chip); - return 0; -} - -static int snd_nm256_dev_free(struct snd_device *device) -{ - struct nm256 *chip = device->device_data; - return snd_nm256_free(chip); -} - -static int __devinit -snd_nm256_create(struct snd_card *card, struct pci_dev *pci, - struct nm256 **chip_ret) -{ - struct nm256 *chip; - int err, pval; - static struct snd_device_ops ops = { - .dev_free = snd_nm256_dev_free, - }; - u32 addr; - - *chip_ret = NULL; - - if ((err = pci_enable_device(pci)) < 0) - return err; - - chip = kzalloc(sizeof(*chip), GFP_KERNEL); - if (chip == NULL) { - pci_disable_device(pci); - return -ENOMEM; - } - - chip->card = card; - chip->pci = pci; - chip->use_cache = use_cache; - spin_lock_init(&chip->reg_lock); - chip->irq = -1; - mutex_init(&chip->irq_mutex); - - /* store buffer sizes in bytes */ - chip->streams[SNDRV_PCM_STREAM_PLAYBACK].bufsize = playback_bufsize * 1024; - chip->streams[SNDRV_PCM_STREAM_CAPTURE].bufsize = capture_bufsize * 1024; - - /* - * The NM256 has two memory ports. The first port is nothing - * more than a chunk of video RAM, which is used as the I/O ring - * buffer. The second port has the actual juicy stuff (like the - * mixer and the playback engine control registers). - */ - - chip->buffer_addr = pci_resource_start(pci, 0); - chip->cport_addr = pci_resource_start(pci, 1); - - /* Init the memory port info. */ - /* remap control port (#2) */ - chip->res_cport = request_mem_region(chip->cport_addr, NM_PORT2_SIZE, - card->driver); - if (chip->res_cport == NULL) { - snd_printk(KERN_ERR "memory region 0x%lx (size 0x%x) busy\n", - chip->cport_addr, NM_PORT2_SIZE); - err = -EBUSY; - goto __error; - } - chip->cport = ioremap_nocache(chip->cport_addr, NM_PORT2_SIZE); - if (chip->cport == NULL) { - snd_printk(KERN_ERR "unable to map control port %lx\n", chip->cport_addr); - err = -ENOMEM; - goto __error; - } - - if (!strcmp(card->driver, "NM256AV")) { - /* Ok, try to see if this is a non-AC97 version of the hardware. */ - pval = snd_nm256_readw(chip, NM_MIXER_PRESENCE); - if ((pval & NM_PRESENCE_MASK) != NM_PRESENCE_VALUE) { - if (! force_ac97) { - printk(KERN_ERR "nm256: no ac97 is found!\n"); - printk(KERN_ERR " force the driver to load by " - "passing in the module parameter\n"); - printk(KERN_ERR " force_ac97=1\n"); - printk(KERN_ERR " or try sb16, opl3sa2, or " - "cs423x drivers instead.\n"); - err = -ENXIO; - goto __error; - } - } - chip->buffer_end = 2560 * 1024; - chip->interrupt = snd_nm256_interrupt; - chip->mixer_status_offset = NM_MIXER_STATUS_OFFSET; - chip->mixer_status_mask = NM_MIXER_READY_MASK; - } else { - /* Not sure if there is any relevant detect for the ZX or not. */ - if (snd_nm256_readb(chip, 0xa0b) != 0) - chip->buffer_end = 6144 * 1024; - else - chip->buffer_end = 4096 * 1024; - - chip->interrupt = snd_nm256_interrupt_zx; - chip->mixer_status_offset = NM2_MIXER_STATUS_OFFSET; - chip->mixer_status_mask = NM2_MIXER_READY_MASK; - } - - chip->buffer_size = chip->streams[SNDRV_PCM_STREAM_PLAYBACK].bufsize + - chip->streams[SNDRV_PCM_STREAM_CAPTURE].bufsize; - if (chip->use_cache) - chip->buffer_size += NM_TOTAL_COEFF_COUNT * 4; - else - chip->buffer_size += NM_MAX_PLAYBACK_COEF_SIZE + NM_MAX_RECORD_COEF_SIZE; - - if (buffer_top >= chip->buffer_size && buffer_top < chip->buffer_end) - chip->buffer_end = buffer_top; - else { - /* get buffer end pointer from signature */ - if ((err = snd_nm256_peek_for_sig(chip)) < 0) - goto __error; - } - - chip->buffer_start = chip->buffer_end - chip->buffer_size; - chip->buffer_addr += chip->buffer_start; - - printk(KERN_INFO "nm256: Mapping port 1 from 0x%x - 0x%x\n", - chip->buffer_start, chip->buffer_end); - - chip->res_buffer = request_mem_region(chip->buffer_addr, - chip->buffer_size, - card->driver); - if (chip->res_buffer == NULL) { - snd_printk(KERN_ERR "nm256: buffer 0x%lx (size 0x%x) busy\n", - chip->buffer_addr, chip->buffer_size); - err = -EBUSY; - goto __error; - } - chip->buffer = ioremap_nocache(chip->buffer_addr, chip->buffer_size); - if (chip->buffer == NULL) { - err = -ENOMEM; - snd_printk(KERN_ERR "unable to map ring buffer at %lx\n", chip->buffer_addr); - goto __error; - } - - /* set offsets */ - addr = chip->buffer_start; - chip->streams[SNDRV_PCM_STREAM_PLAYBACK].buf = addr; - addr += chip->streams[SNDRV_PCM_STREAM_PLAYBACK].bufsize; - chip->streams[SNDRV_PCM_STREAM_CAPTURE].buf = addr; - addr += chip->streams[SNDRV_PCM_STREAM_CAPTURE].bufsize; - if (chip->use_cache) { - chip->all_coeff_buf = addr; - } else { - chip->coeff_buf[SNDRV_PCM_STREAM_PLAYBACK] = addr; - addr += NM_MAX_PLAYBACK_COEF_SIZE; - chip->coeff_buf[SNDRV_PCM_STREAM_CAPTURE] = addr; - } - - /* Fixed setting. */ - chip->mixer_base = NM_MIXER_OFFSET; - - chip->coeffs_current = 0; - - snd_nm256_init_chip(chip); - - // pci_set_master(pci); /* needed? */ - - if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) - goto __error; - - snd_card_set_dev(card, &pci->dev); - - *chip_ret = chip; - return 0; - -__error: - snd_nm256_free(chip); - return err; -} - - -enum { NM_BLACKLISTED, NM_RESET_WORKAROUND, NM_RESET_WORKAROUND_2 }; - -static struct snd_pci_quirk nm256_quirks[] __devinitdata = { - /* HP omnibook 4150 has cs4232 codec internally */ - SND_PCI_QUIRK(0x103c, 0x0007, "HP omnibook 4150", NM_BLACKLISTED), - /* Reset workarounds to avoid lock-ups */ - SND_PCI_QUIRK(0x104d, 0x8041, "Sony PCG-F305", NM_RESET_WORKAROUND), - SND_PCI_QUIRK(0x1028, 0x0080, "Dell Latitude LS", NM_RESET_WORKAROUND), - SND_PCI_QUIRK(0x1028, 0x0091, "Dell Latitude CSx", NM_RESET_WORKAROUND_2), - { } /* terminator */ -}; - - -static int __devinit snd_nm256_probe(struct pci_dev *pci, - const struct pci_device_id *pci_id) -{ - struct snd_card *card; - struct nm256 *chip; - int err; - const struct snd_pci_quirk *q; - - q = snd_pci_quirk_lookup(pci, nm256_quirks); - if (q) { - snd_printdd(KERN_INFO "nm256: Enabled quirk for %s.\n", q->name); - switch (q->value) { - case NM_BLACKLISTED: - printk(KERN_INFO "nm256: The device is blacklisted. " - "Loading stopped\n"); - return -ENODEV; - case NM_RESET_WORKAROUND_2: - reset_workaround_2 = 1; - /* Fall-through */ - case NM_RESET_WORKAROUND: - reset_workaround = 1; - break; - } - } - - err = snd_card_create(index, id, THIS_MODULE, 0, &card); - if (err < 0) - return err; - - switch (pci->device) { - case PCI_DEVICE_ID_NEOMAGIC_NM256AV_AUDIO: - strcpy(card->driver, "NM256AV"); - break; - case PCI_DEVICE_ID_NEOMAGIC_NM256ZX_AUDIO: - strcpy(card->driver, "NM256ZX"); - break; - case PCI_DEVICE_ID_NEOMAGIC_NM256XL_PLUS_AUDIO: - strcpy(card->driver, "NM256XL+"); - break; - default: - snd_printk(KERN_ERR "invalid device id 0x%x\n", pci->device); - snd_card_free(card); - return -EINVAL; - } - - if (vaio_hack) - buffer_top = 0x25a800; /* this avoids conflicts with XFree86 server */ - - if (playback_bufsize < 4) - playback_bufsize = 4; - if (playback_bufsize > 128) - playback_bufsize = 128; - if (capture_bufsize < 4) - capture_bufsize = 4; - if (capture_bufsize > 128) - capture_bufsize = 128; - if ((err = snd_nm256_create(card, pci, &chip)) < 0) { - snd_card_free(card); - return err; - } - card->private_data = chip; - - if (reset_workaround) { - snd_printdd(KERN_INFO "nm256: reset_workaround activated\n"); - chip->reset_workaround = 1; - } - - if (reset_workaround_2) { - snd_printdd(KERN_INFO "nm256: reset_workaround_2 activated\n"); - chip->reset_workaround_2 = 1; - } - - if ((err = snd_nm256_pcm(chip, 0)) < 0 || - (err = snd_nm256_mixer(chip)) < 0) { - snd_card_free(card); - return err; - } - - sprintf(card->shortname, "NeoMagic %s", card->driver); - sprintf(card->longname, "%s at 0x%lx & 0x%lx, irq %d", - card->shortname, - chip->buffer_addr, chip->cport_addr, chip->irq); - - if ((err = snd_card_register(card)) < 0) { - snd_card_free(card); - return err; - } - - pci_set_drvdata(pci, card); - return 0; -} - -static void __devexit snd_nm256_remove(struct pci_dev *pci) -{ - snd_card_free(pci_get_drvdata(pci)); - pci_set_drvdata(pci, NULL); -} - - -static struct pci_driver driver = { - .name = KBUILD_MODNAME, - .id_table = snd_nm256_ids, - .probe = snd_nm256_probe, - .remove = __devexit_p(snd_nm256_remove), -#ifdef CONFIG_PM - .suspend = nm256_suspend, - .resume = nm256_resume, -#endif -}; - - -static int __init alsa_card_nm256_init(void) -{ - return pci_register_driver(&driver); -} - -static void __exit alsa_card_nm256_exit(void) -{ - pci_unregister_driver(&driver); -} - -module_init(alsa_card_nm256_init) -module_exit(alsa_card_nm256_exit) |