OpenCloudOS-Kernel/sound/isa/ad1816a/ad1816a_lib.c

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// SPDX-License-Identifier: GPL-2.0-or-later
/*
ad1816a.c - lowlevel code for Analog Devices AD1816A chip.
Copyright (C) 1999-2000 by Massimo Piccioni <dafastidio@libero.it>
*/
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/slab.h>
#include <linux/ioport.h>
#include <linux/io.h>
#include <sound/core.h>
#include <sound/tlv.h>
#include <sound/ad1816a.h>
#include <asm/dma.h>
static inline int snd_ad1816a_busy_wait(struct snd_ad1816a *chip)
{
int timeout;
for (timeout = 1000; timeout-- > 0; udelay(10))
if (inb(AD1816A_REG(AD1816A_CHIP_STATUS)) & AD1816A_READY)
return 0;
snd_printk(KERN_WARNING "chip busy.\n");
return -EBUSY;
}
static inline unsigned char snd_ad1816a_in(struct snd_ad1816a *chip, unsigned char reg)
{
snd_ad1816a_busy_wait(chip);
return inb(AD1816A_REG(reg));
}
static inline void snd_ad1816a_out(struct snd_ad1816a *chip, unsigned char reg,
unsigned char value)
{
snd_ad1816a_busy_wait(chip);
outb(value, AD1816A_REG(reg));
}
static inline void snd_ad1816a_out_mask(struct snd_ad1816a *chip, unsigned char reg,
unsigned char mask, unsigned char value)
{
snd_ad1816a_out(chip, reg,
(value & mask) | (snd_ad1816a_in(chip, reg) & ~mask));
}
static unsigned short snd_ad1816a_read(struct snd_ad1816a *chip, unsigned char reg)
{
snd_ad1816a_out(chip, AD1816A_INDIR_ADDR, reg & 0x3f);
return snd_ad1816a_in(chip, AD1816A_INDIR_DATA_LOW) |
(snd_ad1816a_in(chip, AD1816A_INDIR_DATA_HIGH) << 8);
}
static void snd_ad1816a_write(struct snd_ad1816a *chip, unsigned char reg,
unsigned short value)
{
snd_ad1816a_out(chip, AD1816A_INDIR_ADDR, reg & 0x3f);
snd_ad1816a_out(chip, AD1816A_INDIR_DATA_LOW, value & 0xff);
snd_ad1816a_out(chip, AD1816A_INDIR_DATA_HIGH, (value >> 8) & 0xff);
}
static void snd_ad1816a_write_mask(struct snd_ad1816a *chip, unsigned char reg,
unsigned short mask, unsigned short value)
{
snd_ad1816a_write(chip, reg,
(value & mask) | (snd_ad1816a_read(chip, reg) & ~mask));
}
static unsigned char snd_ad1816a_get_format(struct snd_ad1816a *chip,
snd_pcm_format_t format,
int channels)
{
unsigned char retval = AD1816A_FMT_LINEAR_8;
switch (format) {
case SNDRV_PCM_FORMAT_MU_LAW:
retval = AD1816A_FMT_ULAW_8;
break;
case SNDRV_PCM_FORMAT_A_LAW:
retval = AD1816A_FMT_ALAW_8;
break;
case SNDRV_PCM_FORMAT_S16_LE:
retval = AD1816A_FMT_LINEAR_16_LIT;
break;
case SNDRV_PCM_FORMAT_S16_BE:
retval = AD1816A_FMT_LINEAR_16_BIG;
}
return (channels > 1) ? (retval | AD1816A_FMT_STEREO) : retval;
}
static int snd_ad1816a_open(struct snd_ad1816a *chip, unsigned int mode)
{
unsigned long flags;
spin_lock_irqsave(&chip->lock, flags);
if (chip->mode & mode) {
spin_unlock_irqrestore(&chip->lock, flags);
return -EAGAIN;
}
switch ((mode &= AD1816A_MODE_OPEN)) {
case AD1816A_MODE_PLAYBACK:
snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,
AD1816A_PLAYBACK_IRQ_PENDING, 0x00);
snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
AD1816A_PLAYBACK_IRQ_ENABLE, 0xffff);
break;
case AD1816A_MODE_CAPTURE:
snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,
AD1816A_CAPTURE_IRQ_PENDING, 0x00);
snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
AD1816A_CAPTURE_IRQ_ENABLE, 0xffff);
break;
case AD1816A_MODE_TIMER:
snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,
AD1816A_TIMER_IRQ_PENDING, 0x00);
snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
AD1816A_TIMER_IRQ_ENABLE, 0xffff);
}
chip->mode |= mode;
spin_unlock_irqrestore(&chip->lock, flags);
return 0;
}
static void snd_ad1816a_close(struct snd_ad1816a *chip, unsigned int mode)
{
unsigned long flags;
spin_lock_irqsave(&chip->lock, flags);
switch ((mode &= AD1816A_MODE_OPEN)) {
case AD1816A_MODE_PLAYBACK:
snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,
AD1816A_PLAYBACK_IRQ_PENDING, 0x00);
snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
AD1816A_PLAYBACK_IRQ_ENABLE, 0x0000);
break;
case AD1816A_MODE_CAPTURE:
snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,
AD1816A_CAPTURE_IRQ_PENDING, 0x00);
snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
AD1816A_CAPTURE_IRQ_ENABLE, 0x0000);
break;
case AD1816A_MODE_TIMER:
snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS,
AD1816A_TIMER_IRQ_PENDING, 0x00);
snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
AD1816A_TIMER_IRQ_ENABLE, 0x0000);
}
if (!((chip->mode &= ~mode) & AD1816A_MODE_OPEN))
chip->mode = 0;
spin_unlock_irqrestore(&chip->lock, flags);
}
static int snd_ad1816a_trigger(struct snd_ad1816a *chip, unsigned char what,
int channel, int cmd, int iscapture)
{
int error = 0;
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_STOP:
spin_lock(&chip->lock);
cmd = (cmd == SNDRV_PCM_TRIGGER_START) ? 0xff: 0x00;
/* if (what & AD1816A_PLAYBACK_ENABLE) */
/* That is not valid, because playback and capture enable
* are the same bit pattern, just to different addresses
*/
if (! iscapture)
snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG,
AD1816A_PLAYBACK_ENABLE, cmd);
else
snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG,
AD1816A_CAPTURE_ENABLE, cmd);
spin_unlock(&chip->lock);
break;
default:
snd_printk(KERN_WARNING "invalid trigger mode 0x%x.\n", what);
error = -EINVAL;
}
return error;
}
static int snd_ad1816a_playback_trigger(struct snd_pcm_substream *substream, int cmd)
{
struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
return snd_ad1816a_trigger(chip, AD1816A_PLAYBACK_ENABLE,
SNDRV_PCM_STREAM_PLAYBACK, cmd, 0);
}
static int snd_ad1816a_capture_trigger(struct snd_pcm_substream *substream, int cmd)
{
struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
return snd_ad1816a_trigger(chip, AD1816A_CAPTURE_ENABLE,
SNDRV_PCM_STREAM_CAPTURE, cmd, 1);
}
static int snd_ad1816a_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *hw_params)
{
return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
}
static int snd_ad1816a_hw_free(struct snd_pcm_substream *substream)
{
return snd_pcm_lib_free_pages(substream);
}
static int snd_ad1816a_playback_prepare(struct snd_pcm_substream *substream)
{
struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
unsigned long flags;
struct snd_pcm_runtime *runtime = substream->runtime;
unsigned int size, rate;
spin_lock_irqsave(&chip->lock, flags);
chip->p_dma_size = size = snd_pcm_lib_buffer_bytes(substream);
snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG,
AD1816A_PLAYBACK_ENABLE | AD1816A_PLAYBACK_PIO, 0x00);
snd_dma_program(chip->dma1, runtime->dma_addr, size,
DMA_MODE_WRITE | DMA_AUTOINIT);
rate = runtime->rate;
if (chip->clock_freq)
rate = (rate * 33000) / chip->clock_freq;
snd_ad1816a_write(chip, AD1816A_PLAYBACK_SAMPLE_RATE, rate);
snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG,
AD1816A_FMT_ALL | AD1816A_FMT_STEREO,
snd_ad1816a_get_format(chip, runtime->format,
runtime->channels));
snd_ad1816a_write(chip, AD1816A_PLAYBACK_BASE_COUNT,
snd_pcm_lib_period_bytes(substream) / 4 - 1);
spin_unlock_irqrestore(&chip->lock, flags);
return 0;
}
static int snd_ad1816a_capture_prepare(struct snd_pcm_substream *substream)
{
struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
unsigned long flags;
struct snd_pcm_runtime *runtime = substream->runtime;
unsigned int size, rate;
spin_lock_irqsave(&chip->lock, flags);
chip->c_dma_size = size = snd_pcm_lib_buffer_bytes(substream);
snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG,
AD1816A_CAPTURE_ENABLE | AD1816A_CAPTURE_PIO, 0x00);
snd_dma_program(chip->dma2, runtime->dma_addr, size,
DMA_MODE_READ | DMA_AUTOINIT);
rate = runtime->rate;
if (chip->clock_freq)
rate = (rate * 33000) / chip->clock_freq;
snd_ad1816a_write(chip, AD1816A_CAPTURE_SAMPLE_RATE, rate);
snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG,
AD1816A_FMT_ALL | AD1816A_FMT_STEREO,
snd_ad1816a_get_format(chip, runtime->format,
runtime->channels));
snd_ad1816a_write(chip, AD1816A_CAPTURE_BASE_COUNT,
snd_pcm_lib_period_bytes(substream) / 4 - 1);
spin_unlock_irqrestore(&chip->lock, flags);
return 0;
}
static snd_pcm_uframes_t snd_ad1816a_playback_pointer(struct snd_pcm_substream *substream)
{
struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
size_t ptr;
if (!(chip->mode & AD1816A_MODE_PLAYBACK))
return 0;
ptr = snd_dma_pointer(chip->dma1, chip->p_dma_size);
return bytes_to_frames(substream->runtime, ptr);
}
static snd_pcm_uframes_t snd_ad1816a_capture_pointer(struct snd_pcm_substream *substream)
{
struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
size_t ptr;
if (!(chip->mode & AD1816A_MODE_CAPTURE))
return 0;
ptr = snd_dma_pointer(chip->dma2, chip->c_dma_size);
return bytes_to_frames(substream->runtime, ptr);
}
IRQ: Maintain regs pointer globally rather than passing to IRQ handlers Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
2006-10-05 21:55:46 +08:00
static irqreturn_t snd_ad1816a_interrupt(int irq, void *dev_id)
{
struct snd_ad1816a *chip = dev_id;
unsigned char status;
spin_lock(&chip->lock);
status = snd_ad1816a_in(chip, AD1816A_INTERRUPT_STATUS);
spin_unlock(&chip->lock);
if ((status & AD1816A_PLAYBACK_IRQ_PENDING) && chip->playback_substream)
snd_pcm_period_elapsed(chip->playback_substream);
if ((status & AD1816A_CAPTURE_IRQ_PENDING) && chip->capture_substream)
snd_pcm_period_elapsed(chip->capture_substream);
if ((status & AD1816A_TIMER_IRQ_PENDING) && chip->timer)
snd_timer_interrupt(chip->timer, chip->timer->sticks);
spin_lock(&chip->lock);
snd_ad1816a_out(chip, AD1816A_INTERRUPT_STATUS, 0x00);
spin_unlock(&chip->lock);
return IRQ_HANDLED;
}
static const struct snd_pcm_hardware snd_ad1816a_playback = {
.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_MMAP_VALID),
.formats = (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW |
SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
SNDRV_PCM_FMTBIT_S16_BE),
.rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
.rate_min = 4000,
.rate_max = 55200,
.channels_min = 1,
.channels_max = 2,
.buffer_bytes_max = (128*1024),
.period_bytes_min = 64,
.period_bytes_max = (128*1024),
.periods_min = 1,
.periods_max = 1024,
.fifo_size = 0,
};
static const struct snd_pcm_hardware snd_ad1816a_capture = {
.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_MMAP_VALID),
.formats = (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW |
SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
SNDRV_PCM_FMTBIT_S16_BE),
.rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
.rate_min = 4000,
.rate_max = 55200,
.channels_min = 1,
.channels_max = 2,
.buffer_bytes_max = (128*1024),
.period_bytes_min = 64,
.period_bytes_max = (128*1024),
.periods_min = 1,
.periods_max = 1024,
.fifo_size = 0,
};
static int snd_ad1816a_timer_close(struct snd_timer *timer)
{
struct snd_ad1816a *chip = snd_timer_chip(timer);
snd_ad1816a_close(chip, AD1816A_MODE_TIMER);
return 0;
}
static int snd_ad1816a_timer_open(struct snd_timer *timer)
{
struct snd_ad1816a *chip = snd_timer_chip(timer);
snd_ad1816a_open(chip, AD1816A_MODE_TIMER);
return 0;
}
static unsigned long snd_ad1816a_timer_resolution(struct snd_timer *timer)
{
if (snd_BUG_ON(!timer))
return 0;
return 10000;
}
static int snd_ad1816a_timer_start(struct snd_timer *timer)
{
unsigned short bits;
unsigned long flags;
struct snd_ad1816a *chip = snd_timer_chip(timer);
spin_lock_irqsave(&chip->lock, flags);
bits = snd_ad1816a_read(chip, AD1816A_INTERRUPT_ENABLE);
if (!(bits & AD1816A_TIMER_ENABLE)) {
snd_ad1816a_write(chip, AD1816A_TIMER_BASE_COUNT,
timer->sticks & 0xffff);
snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
AD1816A_TIMER_ENABLE, 0xffff);
}
spin_unlock_irqrestore(&chip->lock, flags);
return 0;
}
static int snd_ad1816a_timer_stop(struct snd_timer *timer)
{
unsigned long flags;
struct snd_ad1816a *chip = snd_timer_chip(timer);
spin_lock_irqsave(&chip->lock, flags);
snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE,
AD1816A_TIMER_ENABLE, 0x0000);
spin_unlock_irqrestore(&chip->lock, flags);
return 0;
}
static struct snd_timer_hardware snd_ad1816a_timer_table = {
.flags = SNDRV_TIMER_HW_AUTO,
.resolution = 10000,
.ticks = 65535,
.open = snd_ad1816a_timer_open,
.close = snd_ad1816a_timer_close,
.c_resolution = snd_ad1816a_timer_resolution,
.start = snd_ad1816a_timer_start,
.stop = snd_ad1816a_timer_stop,
};
static int snd_ad1816a_playback_open(struct snd_pcm_substream *substream)
{
struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
int error;
if ((error = snd_ad1816a_open(chip, AD1816A_MODE_PLAYBACK)) < 0)
return error;
runtime->hw = snd_ad1816a_playback;
snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.buffer_bytes_max);
snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.period_bytes_max);
chip->playback_substream = substream;
return 0;
}
static int snd_ad1816a_capture_open(struct snd_pcm_substream *substream)
{
struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
int error;
if ((error = snd_ad1816a_open(chip, AD1816A_MODE_CAPTURE)) < 0)
return error;
runtime->hw = snd_ad1816a_capture;
snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.buffer_bytes_max);
snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.period_bytes_max);
chip->capture_substream = substream;
return 0;
}
static int snd_ad1816a_playback_close(struct snd_pcm_substream *substream)
{
struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
chip->playback_substream = NULL;
snd_ad1816a_close(chip, AD1816A_MODE_PLAYBACK);
return 0;
}
static int snd_ad1816a_capture_close(struct snd_pcm_substream *substream)
{
struct snd_ad1816a *chip = snd_pcm_substream_chip(substream);
chip->capture_substream = NULL;
snd_ad1816a_close(chip, AD1816A_MODE_CAPTURE);
return 0;
}
static void snd_ad1816a_init(struct snd_ad1816a *chip)
{
unsigned long flags;
spin_lock_irqsave(&chip->lock, flags);
snd_ad1816a_out(chip, AD1816A_INTERRUPT_STATUS, 0x00);
snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG,
AD1816A_PLAYBACK_ENABLE | AD1816A_PLAYBACK_PIO, 0x00);
snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG,
AD1816A_CAPTURE_ENABLE | AD1816A_CAPTURE_PIO, 0x00);
snd_ad1816a_write(chip, AD1816A_INTERRUPT_ENABLE, 0x0000);
snd_ad1816a_write_mask(chip, AD1816A_CHIP_CONFIG,
AD1816A_CAPTURE_NOT_EQUAL | AD1816A_WSS_ENABLE, 0xffff);
snd_ad1816a_write(chip, AD1816A_DSP_CONFIG, 0x0000);
snd_ad1816a_write(chip, AD1816A_POWERDOWN_CTRL, 0x0000);
spin_unlock_irqrestore(&chip->lock, flags);
}
#ifdef CONFIG_PM
void snd_ad1816a_suspend(struct snd_ad1816a *chip)
{
int reg;
unsigned long flags;
spin_lock_irqsave(&chip->lock, flags);
for (reg = 0; reg < 48; reg++)
chip->image[reg] = snd_ad1816a_read(chip, reg);
spin_unlock_irqrestore(&chip->lock, flags);
}
void snd_ad1816a_resume(struct snd_ad1816a *chip)
{
int reg;
unsigned long flags;
snd_ad1816a_init(chip);
spin_lock_irqsave(&chip->lock, flags);
for (reg = 0; reg < 48; reg++)
snd_ad1816a_write(chip, reg, chip->image[reg]);
spin_unlock_irqrestore(&chip->lock, flags);
}
#endif
static int snd_ad1816a_probe(struct snd_ad1816a *chip)
{
unsigned long flags;
spin_lock_irqsave(&chip->lock, flags);
switch (chip->version = snd_ad1816a_read(chip, AD1816A_VERSION_ID)) {
case 0:
chip->hardware = AD1816A_HW_AD1815;
break;
case 1:
chip->hardware = AD1816A_HW_AD18MAX10;
break;
case 3:
chip->hardware = AD1816A_HW_AD1816A;
break;
default:
chip->hardware = AD1816A_HW_AUTO;
}
spin_unlock_irqrestore(&chip->lock, flags);
return 0;
}
static int snd_ad1816a_free(struct snd_ad1816a *chip)
{
release_and_free_resource(chip->res_port);
if (chip->irq >= 0)
free_irq(chip->irq, (void *) chip);
if (chip->dma1 >= 0) {
snd_dma_disable(chip->dma1);
free_dma(chip->dma1);
}
if (chip->dma2 >= 0) {
snd_dma_disable(chip->dma2);
free_dma(chip->dma2);
}
return 0;
}
static int snd_ad1816a_dev_free(struct snd_device *device)
{
struct snd_ad1816a *chip = device->device_data;
return snd_ad1816a_free(chip);
}
static const char *snd_ad1816a_chip_id(struct snd_ad1816a *chip)
{
switch (chip->hardware) {
case AD1816A_HW_AD1816A: return "AD1816A";
case AD1816A_HW_AD1815: return "AD1815";
case AD1816A_HW_AD18MAX10: return "AD18max10";
default:
snd_printk(KERN_WARNING "Unknown chip version %d:%d.\n",
chip->version, chip->hardware);
return "AD1816A - unknown";
}
}
int snd_ad1816a_create(struct snd_card *card,
unsigned long port, int irq, int dma1, int dma2,
struct snd_ad1816a *chip)
{
static struct snd_device_ops ops = {
.dev_free = snd_ad1816a_dev_free,
};
int error;
chip->irq = -1;
chip->dma1 = -1;
chip->dma2 = -1;
if ((chip->res_port = request_region(port, 16, "AD1816A")) == NULL) {
snd_printk(KERN_ERR "ad1816a: can't grab port 0x%lx\n", port);
snd_ad1816a_free(chip);
return -EBUSY;
}
if (request_irq(irq, snd_ad1816a_interrupt, 0, "AD1816A", (void *) chip)) {
snd_printk(KERN_ERR "ad1816a: can't grab IRQ %d\n", irq);
snd_ad1816a_free(chip);
return -EBUSY;
}
chip->irq = irq;
if (request_dma(dma1, "AD1816A - 1")) {
snd_printk(KERN_ERR "ad1816a: can't grab DMA1 %d\n", dma1);
snd_ad1816a_free(chip);
return -EBUSY;
}
chip->dma1 = dma1;
if (request_dma(dma2, "AD1816A - 2")) {
snd_printk(KERN_ERR "ad1816a: can't grab DMA2 %d\n", dma2);
snd_ad1816a_free(chip);
return -EBUSY;
}
chip->dma2 = dma2;
chip->card = card;
chip->port = port;
spin_lock_init(&chip->lock);
if ((error = snd_ad1816a_probe(chip))) {
snd_ad1816a_free(chip);
return error;
}
snd_ad1816a_init(chip);
/* Register device */
if ((error = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
snd_ad1816a_free(chip);
return error;
}
return 0;
}
static const struct snd_pcm_ops snd_ad1816a_playback_ops = {
.open = snd_ad1816a_playback_open,
.close = snd_ad1816a_playback_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_ad1816a_hw_params,
.hw_free = snd_ad1816a_hw_free,
.prepare = snd_ad1816a_playback_prepare,
.trigger = snd_ad1816a_playback_trigger,
.pointer = snd_ad1816a_playback_pointer,
};
static const struct snd_pcm_ops snd_ad1816a_capture_ops = {
.open = snd_ad1816a_capture_open,
.close = snd_ad1816a_capture_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_ad1816a_hw_params,
.hw_free = snd_ad1816a_hw_free,
.prepare = snd_ad1816a_capture_prepare,
.trigger = snd_ad1816a_capture_trigger,
.pointer = snd_ad1816a_capture_pointer,
};
int snd_ad1816a_pcm(struct snd_ad1816a *chip, int device)
{
int error;
struct snd_pcm *pcm;
if ((error = snd_pcm_new(chip->card, "AD1816A", device, 1, 1, &pcm)))
return error;
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ad1816a_playback_ops);
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ad1816a_capture_ops);
pcm->private_data = chip;
pcm->info_flags = (chip->dma1 == chip->dma2 ) ? SNDRV_PCM_INFO_JOINT_DUPLEX : 0;
strcpy(pcm->name, snd_ad1816a_chip_id(chip));
snd_ad1816a_init(chip);
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
chip->card->dev,
64*1024, chip->dma1 > 3 || chip->dma2 > 3 ? 128*1024 : 64*1024);
chip->pcm = pcm;
return 0;
}
int snd_ad1816a_timer(struct snd_ad1816a *chip, int device)
{
struct snd_timer *timer;
struct snd_timer_id tid;
int error;
tid.dev_class = SNDRV_TIMER_CLASS_CARD;
tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE;
tid.card = chip->card->number;
tid.device = device;
tid.subdevice = 0;
if ((error = snd_timer_new(chip->card, "AD1816A", &tid, &timer)) < 0)
return error;
strcpy(timer->name, snd_ad1816a_chip_id(chip));
timer->private_data = chip;
chip->timer = timer;
timer->hw = snd_ad1816a_timer_table;
return 0;
}
/*
*
*/
static int snd_ad1816a_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
static const char * const texts[8] = {
"Line", "Mix", "CD", "Synth", "Video",
"Mic", "Phone",
};
return snd_ctl_enum_info(uinfo, 2, 7, texts);
}
static int snd_ad1816a_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
unsigned long flags;
unsigned short val;
spin_lock_irqsave(&chip->lock, flags);
val = snd_ad1816a_read(chip, AD1816A_ADC_SOURCE_SEL);
spin_unlock_irqrestore(&chip->lock, flags);
ucontrol->value.enumerated.item[0] = (val >> 12) & 7;
ucontrol->value.enumerated.item[1] = (val >> 4) & 7;
return 0;
}
static int snd_ad1816a_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
unsigned long flags;
unsigned short val;
int change;
if (ucontrol->value.enumerated.item[0] > 6 ||
ucontrol->value.enumerated.item[1] > 6)
return -EINVAL;
val = (ucontrol->value.enumerated.item[0] << 12) |
(ucontrol->value.enumerated.item[1] << 4);
spin_lock_irqsave(&chip->lock, flags);
change = snd_ad1816a_read(chip, AD1816A_ADC_SOURCE_SEL) != val;
snd_ad1816a_write(chip, AD1816A_ADC_SOURCE_SEL, val);
spin_unlock_irqrestore(&chip->lock, flags);
return change;
}
#define AD1816A_SINGLE_TLV(xname, reg, shift, mask, invert, xtlv) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
.name = xname, .info = snd_ad1816a_info_single, \
.get = snd_ad1816a_get_single, .put = snd_ad1816a_put_single, \
.private_value = reg | (shift << 8) | (mask << 16) | (invert << 24), \
.tlv = { .p = (xtlv) } }
#define AD1816A_SINGLE(xname, reg, shift, mask, invert) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ad1816a_info_single, \
.get = snd_ad1816a_get_single, .put = snd_ad1816a_put_single, \
.private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
static int snd_ad1816a_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
int mask = (kcontrol->private_value >> 16) & 0xff;
uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = 1;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = mask;
return 0;
}
static int snd_ad1816a_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
unsigned long flags;
int reg = kcontrol->private_value & 0xff;
int shift = (kcontrol->private_value >> 8) & 0xff;
int mask = (kcontrol->private_value >> 16) & 0xff;
int invert = (kcontrol->private_value >> 24) & 0xff;
spin_lock_irqsave(&chip->lock, flags);
ucontrol->value.integer.value[0] = (snd_ad1816a_read(chip, reg) >> shift) & mask;
spin_unlock_irqrestore(&chip->lock, flags);
if (invert)
ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
return 0;
}
static int snd_ad1816a_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
unsigned long flags;
int reg = kcontrol->private_value & 0xff;
int shift = (kcontrol->private_value >> 8) & 0xff;
int mask = (kcontrol->private_value >> 16) & 0xff;
int invert = (kcontrol->private_value >> 24) & 0xff;
int change;
unsigned short old_val, val;
val = (ucontrol->value.integer.value[0] & mask);
if (invert)
val = mask - val;
val <<= shift;
spin_lock_irqsave(&chip->lock, flags);
old_val = snd_ad1816a_read(chip, reg);
val = (old_val & ~(mask << shift)) | val;
change = val != old_val;
snd_ad1816a_write(chip, reg, val);
spin_unlock_irqrestore(&chip->lock, flags);
return change;
}
#define AD1816A_DOUBLE_TLV(xname, reg, shift_left, shift_right, mask, invert, xtlv) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
.name = xname, .info = snd_ad1816a_info_double, \
.get = snd_ad1816a_get_double, .put = snd_ad1816a_put_double, \
.private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24), \
.tlv = { .p = (xtlv) } }
#define AD1816A_DOUBLE(xname, reg, shift_left, shift_right, mask, invert) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ad1816a_info_double, \
.get = snd_ad1816a_get_double, .put = snd_ad1816a_put_double, \
.private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24) }
static int snd_ad1816a_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
int mask = (kcontrol->private_value >> 16) & 0xff;
uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = 2;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = mask;
return 0;
}
static int snd_ad1816a_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
unsigned long flags;
int reg = kcontrol->private_value & 0xff;
int shift_left = (kcontrol->private_value >> 8) & 0x0f;
int shift_right = (kcontrol->private_value >> 12) & 0x0f;
int mask = (kcontrol->private_value >> 16) & 0xff;
int invert = (kcontrol->private_value >> 24) & 0xff;
unsigned short val;
spin_lock_irqsave(&chip->lock, flags);
val = snd_ad1816a_read(chip, reg);
ucontrol->value.integer.value[0] = (val >> shift_left) & mask;
ucontrol->value.integer.value[1] = (val >> shift_right) & mask;
spin_unlock_irqrestore(&chip->lock, flags);
if (invert) {
ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
}
return 0;
}
static int snd_ad1816a_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol);
unsigned long flags;
int reg = kcontrol->private_value & 0xff;
int shift_left = (kcontrol->private_value >> 8) & 0x0f;
int shift_right = (kcontrol->private_value >> 12) & 0x0f;
int mask = (kcontrol->private_value >> 16) & 0xff;
int invert = (kcontrol->private_value >> 24) & 0xff;
int change;
unsigned short old_val, val1, val2;
val1 = ucontrol->value.integer.value[0] & mask;
val2 = ucontrol->value.integer.value[1] & mask;
if (invert) {
val1 = mask - val1;
val2 = mask - val2;
}
val1 <<= shift_left;
val2 <<= shift_right;
spin_lock_irqsave(&chip->lock, flags);
old_val = snd_ad1816a_read(chip, reg);
val1 = (old_val & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2;
change = val1 != old_val;
snd_ad1816a_write(chip, reg, val1);
spin_unlock_irqrestore(&chip->lock, flags);
return change;
}
static const DECLARE_TLV_DB_SCALE(db_scale_4bit, -4500, 300, 0);
static const DECLARE_TLV_DB_SCALE(db_scale_5bit, -4650, 150, 0);
static const DECLARE_TLV_DB_SCALE(db_scale_6bit, -9450, 150, 0);
static const DECLARE_TLV_DB_SCALE(db_scale_5bit_12db_max, -3450, 150, 0);
static const DECLARE_TLV_DB_SCALE(db_scale_rec_gain, 0, 150, 0);
static struct snd_kcontrol_new snd_ad1816a_controls[] = {
AD1816A_DOUBLE("Master Playback Switch", AD1816A_MASTER_ATT, 15, 7, 1, 1),
AD1816A_DOUBLE_TLV("Master Playback Volume", AD1816A_MASTER_ATT, 8, 0, 31, 1,
db_scale_5bit),
AD1816A_DOUBLE("PCM Playback Switch", AD1816A_VOICE_ATT, 15, 7, 1, 1),
AD1816A_DOUBLE_TLV("PCM Playback Volume", AD1816A_VOICE_ATT, 8, 0, 63, 1,
db_scale_6bit),
AD1816A_DOUBLE("Line Playback Switch", AD1816A_LINE_GAIN_ATT, 15, 7, 1, 1),
AD1816A_DOUBLE_TLV("Line Playback Volume", AD1816A_LINE_GAIN_ATT, 8, 0, 31, 1,
db_scale_5bit_12db_max),
AD1816A_DOUBLE("CD Playback Switch", AD1816A_CD_GAIN_ATT, 15, 7, 1, 1),
AD1816A_DOUBLE_TLV("CD Playback Volume", AD1816A_CD_GAIN_ATT, 8, 0, 31, 1,
db_scale_5bit_12db_max),
AD1816A_DOUBLE("Synth Playback Switch", AD1816A_SYNTH_GAIN_ATT, 15, 7, 1, 1),
AD1816A_DOUBLE_TLV("Synth Playback Volume", AD1816A_SYNTH_GAIN_ATT, 8, 0, 31, 1,
db_scale_5bit_12db_max),
AD1816A_DOUBLE("FM Playback Switch", AD1816A_FM_ATT, 15, 7, 1, 1),
AD1816A_DOUBLE_TLV("FM Playback Volume", AD1816A_FM_ATT, 8, 0, 63, 1,
db_scale_6bit),
AD1816A_SINGLE("Mic Playback Switch", AD1816A_MIC_GAIN_ATT, 15, 1, 1),
AD1816A_SINGLE_TLV("Mic Playback Volume", AD1816A_MIC_GAIN_ATT, 8, 31, 1,
db_scale_5bit_12db_max),
AD1816A_SINGLE("Mic Boost", AD1816A_MIC_GAIN_ATT, 14, 1, 0),
AD1816A_DOUBLE("Video Playback Switch", AD1816A_VID_GAIN_ATT, 15, 7, 1, 1),
AD1816A_DOUBLE_TLV("Video Playback Volume", AD1816A_VID_GAIN_ATT, 8, 0, 31, 1,
db_scale_5bit_12db_max),
AD1816A_SINGLE("Phone Capture Switch", AD1816A_PHONE_IN_GAIN_ATT, 15, 1, 1),
AD1816A_SINGLE_TLV("Phone Capture Volume", AD1816A_PHONE_IN_GAIN_ATT, 0, 15, 1,
db_scale_4bit),
AD1816A_SINGLE("Phone Playback Switch", AD1816A_PHONE_OUT_ATT, 7, 1, 1),
AD1816A_SINGLE_TLV("Phone Playback Volume", AD1816A_PHONE_OUT_ATT, 0, 31, 1,
db_scale_5bit),
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Capture Source",
.info = snd_ad1816a_info_mux,
.get = snd_ad1816a_get_mux,
.put = snd_ad1816a_put_mux,
},
AD1816A_DOUBLE("Capture Switch", AD1816A_ADC_PGA, 15, 7, 1, 1),
AD1816A_DOUBLE_TLV("Capture Volume", AD1816A_ADC_PGA, 8, 0, 15, 0,
db_scale_rec_gain),
AD1816A_SINGLE("3D Control - Switch", AD1816A_3D_PHAT_CTRL, 15, 1, 1),
AD1816A_SINGLE("3D Control - Level", AD1816A_3D_PHAT_CTRL, 0, 15, 0),
};
int snd_ad1816a_mixer(struct snd_ad1816a *chip)
{
struct snd_card *card;
unsigned int idx;
int err;
if (snd_BUG_ON(!chip || !chip->card))
return -EINVAL;
card = chip->card;
strcpy(card->mixername, snd_ad1816a_chip_id(chip));
for (idx = 0; idx < ARRAY_SIZE(snd_ad1816a_controls); idx++) {
if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_ad1816a_controls[idx], chip))) < 0)
return err;
}
return 0;
}