--- /dev/null
+/*
+ ad1816a.c - lowlevel code for Analog Devices AD1816A chip.
+ Copyright (C) 1999-2000 by Massimo Piccioni <dafastidio@libero.it>
+
+ 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 <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,
+ unsigned int 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);
+}
+
+
+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 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 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;
+
+ snd_pcm_suspend_all(chip->pcm);
+ 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 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 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,
+ snd_dma_isa_data(),
+ 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;
+}
Code Review / kvmfornfv.git / blobdiff