| /* |
| * Copyright (c) by Jaroslav Kysela <perex@suse.cz> |
| * Routines for control of AD1848/AD1847/CS4248 |
| * |
| * |
| * 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 |
| * |
| */ |
| |
| #define SNDRV_MAIN_OBJECT_FILE |
| #include <sound/driver.h> |
| #include <linux/delay.h> |
| #include <linux/init.h> |
| #include <linux/interrupt.h> |
| #include <linux/pm.h> |
| #include <linux/slab.h> |
| #include <linux/ioport.h> |
| #include <sound/core.h> |
| #include <sound/ad1848.h> |
| #include <sound/control.h> |
| #include <sound/pcm_params.h> |
| |
| #include <asm/io.h> |
| #include <asm/dma.h> |
| |
| MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>"); |
| MODULE_DESCRIPTION("Routines for control of AD1848/AD1847/CS4248"); |
| MODULE_LICENSE("GPL"); |
| |
| #if 0 |
| #define SNDRV_DEBUG_MCE |
| #endif |
| |
| /* |
| * Some variables |
| */ |
| |
| static unsigned char freq_bits[14] = { |
| /* 5510 */ 0x00 | AD1848_XTAL2, |
| /* 6620 */ 0x0E | AD1848_XTAL2, |
| /* 8000 */ 0x00 | AD1848_XTAL1, |
| /* 9600 */ 0x0E | AD1848_XTAL1, |
| /* 11025 */ 0x02 | AD1848_XTAL2, |
| /* 16000 */ 0x02 | AD1848_XTAL1, |
| /* 18900 */ 0x04 | AD1848_XTAL2, |
| /* 22050 */ 0x06 | AD1848_XTAL2, |
| /* 27042 */ 0x04 | AD1848_XTAL1, |
| /* 32000 */ 0x06 | AD1848_XTAL1, |
| /* 33075 */ 0x0C | AD1848_XTAL2, |
| /* 37800 */ 0x08 | AD1848_XTAL2, |
| /* 44100 */ 0x0A | AD1848_XTAL2, |
| /* 48000 */ 0x0C | AD1848_XTAL1 |
| }; |
| |
| static unsigned int rates[14] = { |
| 5510, 6620, 8000, 9600, 11025, 16000, 18900, 22050, |
| 27042, 32000, 33075, 37800, 44100, 48000 |
| }; |
| |
| static snd_pcm_hw_constraint_list_t hw_constraints_rates = { |
| .count = 14, |
| .list = rates, |
| .mask = 0, |
| }; |
| |
| static unsigned char snd_ad1848_original_image[16] = |
| { |
| 0x00, /* 00 - lic */ |
| 0x00, /* 01 - ric */ |
| 0x9f, /* 02 - la1ic */ |
| 0x9f, /* 03 - ra1ic */ |
| 0x9f, /* 04 - la2ic */ |
| 0x9f, /* 05 - ra2ic */ |
| 0xbf, /* 06 - loc */ |
| 0xbf, /* 07 - roc */ |
| 0x20, /* 08 - dfr */ |
| AD1848_AUTOCALIB, /* 09 - ic */ |
| 0x00, /* 0a - pc */ |
| 0x00, /* 0b - ti */ |
| 0x00, /* 0c - mi */ |
| 0x00, /* 0d - lbc */ |
| 0x00, /* 0e - dru */ |
| 0x00, /* 0f - drl */ |
| }; |
| |
| /* |
| * Basic I/O functions |
| */ |
| |
| void snd_ad1848_out(ad1848_t *chip, |
| unsigned char reg, |
| unsigned char value) |
| { |
| int timeout; |
| |
| for (timeout = 250; timeout > 0 && (inb(AD1848P(chip, REGSEL)) & AD1848_INIT); timeout--) |
| udelay(100); |
| #ifdef CONFIG_SND_DEBUG |
| if (inb(AD1848P(chip, REGSEL)) & AD1848_INIT) |
| snd_printk("auto calibration time out - reg = 0x%x, value = 0x%x\n", reg, value); |
| #endif |
| outb(chip->mce_bit | reg, AD1848P(chip, REGSEL)); |
| outb(chip->image[reg] = value, AD1848P(chip, REG)); |
| mb(); |
| #if 0 |
| printk("codec out - reg 0x%x = 0x%x\n", chip->mce_bit | reg, value); |
| #endif |
| } |
| |
| static void snd_ad1848_dout(ad1848_t *chip, |
| unsigned char reg, unsigned char value) |
| { |
| int timeout; |
| |
| for (timeout = 250; timeout > 0 && (inb(AD1848P(chip, REGSEL)) & AD1848_INIT); timeout--) |
| udelay(100); |
| outb(chip->mce_bit | reg, AD1848P(chip, REGSEL)); |
| outb(value, AD1848P(chip, REG)); |
| mb(); |
| } |
| |
| static unsigned char snd_ad1848_in(ad1848_t *chip, unsigned char reg) |
| { |
| int timeout; |
| |
| for (timeout = 250; timeout > 0 && (inb(AD1848P(chip, REGSEL)) & AD1848_INIT); timeout--) |
| udelay(100); |
| #ifdef CONFIG_SND_DEBUG |
| if (inb(AD1848P(chip, REGSEL)) & AD1848_INIT) |
| snd_printk("auto calibration time out - reg = 0x%x\n", reg); |
| #endif |
| outb(chip->mce_bit | reg, AD1848P(chip, REGSEL)); |
| mb(); |
| return inb(AD1848P(chip, REG)); |
| } |
| |
| #if 0 |
| |
| static void snd_ad1848_debug(ad1848_t *chip) |
| { |
| printk("AD1848 REGS: INDEX = 0x%02x ", inb(AD1848P(chip, REGSEL))); |
| printk(" STATUS = 0x%02x\n", inb(AD1848P(chip, STATUS))); |
| printk(" 0x00: left input = 0x%02x ", snd_ad1848_in(chip, 0x00)); |
| printk(" 0x08: playback format = 0x%02x\n", snd_ad1848_in(chip, 0x08)); |
| printk(" 0x01: right input = 0x%02x ", snd_ad1848_in(chip, 0x01)); |
| printk(" 0x09: iface (CFIG 1) = 0x%02x\n", snd_ad1848_in(chip, 0x09)); |
| printk(" 0x02: AUXA left = 0x%02x ", snd_ad1848_in(chip, 0x02)); |
| printk(" 0x0a: pin control = 0x%02x\n", snd_ad1848_in(chip, 0x0a)); |
| printk(" 0x03: AUXA right = 0x%02x ", snd_ad1848_in(chip, 0x03)); |
| printk(" 0x0b: init & status = 0x%02x\n", snd_ad1848_in(chip, 0x0b)); |
| printk(" 0x04: AUXB left = 0x%02x ", snd_ad1848_in(chip, 0x04)); |
| printk(" 0x0c: revision & mode = 0x%02x\n", snd_ad1848_in(chip, 0x0c)); |
| printk(" 0x05: AUXB right = 0x%02x ", snd_ad1848_in(chip, 0x05)); |
| printk(" 0x0d: loopback = 0x%02x\n", snd_ad1848_in(chip, 0x0d)); |
| printk(" 0x06: left output = 0x%02x ", snd_ad1848_in(chip, 0x06)); |
| printk(" 0x0e: data upr count = 0x%02x\n", snd_ad1848_in(chip, 0x0e)); |
| printk(" 0x07: right output = 0x%02x ", snd_ad1848_in(chip, 0x07)); |
| printk(" 0x0f: data lwr count = 0x%02x\n", snd_ad1848_in(chip, 0x0f)); |
| } |
| |
| #endif |
| |
| /* |
| * AD1848 detection / MCE routines |
| */ |
| |
| static void snd_ad1848_mce_up(ad1848_t *chip) |
| { |
| unsigned long flags; |
| int timeout; |
| |
| for (timeout = 250; timeout > 0 && (inb(AD1848P(chip, REGSEL)) & AD1848_INIT); timeout--) |
| udelay(100); |
| #ifdef CONFIG_SND_DEBUG |
| if (inb(AD1848P(chip, REGSEL)) & AD1848_INIT) |
| snd_printk("mce_up - auto calibration time out (0)\n"); |
| #endif |
| spin_lock_irqsave(&chip->reg_lock, flags); |
| chip->mce_bit |= AD1848_MCE; |
| timeout = inb(AD1848P(chip, REGSEL)); |
| if (timeout == 0x80) |
| snd_printk("mce_up [0x%lx]: serious init problem - codec still busy\n", chip->port); |
| if (!(timeout & AD1848_MCE)) |
| outb(chip->mce_bit | (timeout & 0x1f), AD1848P(chip, REGSEL)); |
| spin_unlock_irqrestore(&chip->reg_lock, flags); |
| } |
| |
| static void snd_ad1848_mce_down(ad1848_t *chip) |
| { |
| unsigned long flags; |
| int timeout; |
| signed long time; |
| |
| spin_lock_irqsave(&chip->reg_lock, flags); |
| for (timeout = 5; timeout > 0; timeout--) |
| inb(AD1848P(chip, REGSEL)); |
| /* end of cleanup sequence */ |
| for (timeout = 12000; timeout > 0 && (inb(AD1848P(chip, REGSEL)) & AD1848_INIT); timeout--) |
| udelay(100); |
| #if 0 |
| printk("(1) timeout = %i\n", timeout); |
| #endif |
| #ifdef CONFIG_SND_DEBUG |
| if (inb(AD1848P(chip, REGSEL)) & AD1848_INIT) |
| snd_printk("mce_down [0x%lx] - auto calibration time out (0)\n", AD1848P(chip, REGSEL)); |
| #endif |
| chip->mce_bit &= ~AD1848_MCE; |
| timeout = inb(AD1848P(chip, REGSEL)); |
| outb(chip->mce_bit | (timeout & 0x1f), AD1848P(chip, REGSEL)); |
| if (timeout == 0x80) |
| snd_printk("mce_down [0x%lx]: serious init problem - codec still busy\n", chip->port); |
| if ((timeout & AD1848_MCE) == 0) { |
| spin_unlock_irqrestore(&chip->reg_lock, flags); |
| return; |
| } |
| /* calibration process */ |
| |
| for (timeout = 500; timeout > 0 && (snd_ad1848_in(chip, AD1848_TEST_INIT) & AD1848_CALIB_IN_PROGRESS) == 0; timeout--); |
| if ((snd_ad1848_in(chip, AD1848_TEST_INIT) & AD1848_CALIB_IN_PROGRESS) == 0) { |
| snd_printd("mce_down - auto calibration time out (1)\n"); |
| spin_unlock_irqrestore(&chip->reg_lock, flags); |
| return; |
| } |
| #if 0 |
| printk("(2) timeout = %i, jiffies = %li\n", timeout, jiffies); |
| #endif |
| time = HZ / 4; |
| while (snd_ad1848_in(chip, AD1848_TEST_INIT) & AD1848_CALIB_IN_PROGRESS) { |
| spin_unlock_irqrestore(&chip->reg_lock, flags); |
| if (time <= 0) { |
| snd_printk("mce_down - auto calibration time out (2)\n"); |
| return; |
| } |
| set_current_state(TASK_INTERRUPTIBLE); |
| time = schedule_timeout(time); |
| spin_lock_irqsave(&chip->reg_lock, flags); |
| } |
| #if 0 |
| printk("(3) jiffies = %li\n", jiffies); |
| #endif |
| time = HZ / 10; |
| while (inb(AD1848P(chip, REGSEL)) & AD1848_INIT) { |
| spin_unlock_irqrestore(&chip->reg_lock, flags); |
| if (time <= 0) { |
| snd_printk("mce_down - auto calibration time out (3)\n"); |
| return; |
| } |
| set_current_state(TASK_INTERRUPTIBLE); |
| time = schedule_timeout(time); |
| spin_lock_irqsave(&chip->reg_lock, flags); |
| } |
| spin_unlock_irqrestore(&chip->reg_lock, flags); |
| #if 0 |
| printk("(4) jiffies = %li\n", jiffies); |
| snd_printk("mce_down - exit = 0x%x\n", inb(AD1848P(chip, REGSEL))); |
| #endif |
| } |
| |
| static unsigned int snd_ad1848_get_count(unsigned char format, |
| unsigned int size) |
| { |
| switch (format & 0xe0) { |
| case AD1848_LINEAR_16: |
| size >>= 1; |
| break; |
| } |
| if (format & AD1848_STEREO) |
| size >>= 1; |
| return size; |
| } |
| |
| static int snd_ad1848_trigger(ad1848_t *chip, unsigned char what, |
| int channel, int cmd) |
| { |
| int result = 0; |
| |
| #if 0 |
| printk("codec trigger!!! - what = %i, enable = %i, status = 0x%x\n", what, enable, inb(AD1848P(card, STATUS))); |
| #endif |
| spin_lock(&chip->reg_lock); |
| if (cmd == SNDRV_PCM_TRIGGER_START) { |
| if (chip->image[AD1848_IFACE_CTRL] & what) { |
| spin_unlock(&chip->reg_lock); |
| return 0; |
| } |
| snd_ad1848_out(chip, AD1848_IFACE_CTRL, chip->image[AD1848_IFACE_CTRL] |= what); |
| chip->mode |= AD1848_MODE_RUNNING; |
| } else if (cmd == SNDRV_PCM_TRIGGER_STOP) { |
| if (!(chip->image[AD1848_IFACE_CTRL] & what)) { |
| spin_unlock(&chip->reg_lock); |
| return 0; |
| } |
| snd_ad1848_out(chip, AD1848_IFACE_CTRL, chip->image[AD1848_IFACE_CTRL] &= ~what); |
| chip->mode &= ~AD1848_MODE_RUNNING; |
| } else { |
| result = -EINVAL; |
| } |
| spin_unlock(&chip->reg_lock); |
| return result; |
| } |
| |
| /* |
| * CODEC I/O |
| */ |
| |
| static unsigned char snd_ad1848_get_rate(unsigned int rate) |
| { |
| int i; |
| |
| for (i = 0; i < 14; i++) |
| if (rate == rates[i]) |
| return freq_bits[i]; |
| snd_BUG(); |
| return freq_bits[13]; |
| } |
| |
| static int snd_ad1848_ioctl(snd_pcm_substream_t * substream, |
| unsigned int cmd, void *arg) |
| { |
| return snd_pcm_lib_ioctl(substream, cmd, arg); |
| } |
| |
| static unsigned char snd_ad1848_get_format(int format, int channels) |
| { |
| unsigned char rformat; |
| |
| rformat = AD1848_LINEAR_8; |
| switch (format) { |
| case SNDRV_PCM_FORMAT_A_LAW: rformat = AD1848_ALAW_8; break; |
| case SNDRV_PCM_FORMAT_MU_LAW: rformat = AD1848_ULAW_8; break; |
| case SNDRV_PCM_FORMAT_S16_LE: rformat = AD1848_LINEAR_16; break; |
| } |
| if (channels > 1) |
| rformat |= AD1848_STEREO; |
| #if 0 |
| snd_printk("get_format: 0x%x (mode=0x%x)\n", format, mode); |
| #endif |
| return rformat; |
| } |
| |
| static void snd_ad1848_calibrate_mute(ad1848_t *chip, int mute) |
| { |
| unsigned long flags; |
| |
| mute = mute ? 1 : 0; |
| spin_lock_irqsave(&chip->reg_lock, flags); |
| if (chip->calibrate_mute == mute) { |
| spin_unlock_irqrestore(&chip->reg_lock, flags); |
| return; |
| } |
| if (!mute) { |
| snd_ad1848_dout(chip, AD1848_LEFT_INPUT, chip->image[AD1848_LEFT_INPUT]); |
| snd_ad1848_dout(chip, AD1848_RIGHT_INPUT, chip->image[AD1848_RIGHT_INPUT]); |
| } |
| snd_ad1848_dout(chip, AD1848_AUX1_LEFT_INPUT, mute ? 0x80 : chip->image[AD1848_AUX1_LEFT_INPUT]); |
| snd_ad1848_dout(chip, AD1848_AUX1_RIGHT_INPUT, mute ? 0x80 : chip->image[AD1848_AUX1_RIGHT_INPUT]); |
| snd_ad1848_dout(chip, AD1848_AUX2_LEFT_INPUT, mute ? 0x80 : chip->image[AD1848_AUX2_LEFT_INPUT]); |
| snd_ad1848_dout(chip, AD1848_AUX2_RIGHT_INPUT, mute ? 0x80 : chip->image[AD1848_AUX2_RIGHT_INPUT]); |
| snd_ad1848_dout(chip, AD1848_LEFT_OUTPUT, mute ? 0x80 : chip->image[AD1848_LEFT_OUTPUT]); |
| snd_ad1848_dout(chip, AD1848_RIGHT_OUTPUT, mute ? 0x80 : chip->image[AD1848_RIGHT_OUTPUT]); |
| chip->calibrate_mute = mute; |
| spin_unlock_irqrestore(&chip->reg_lock, flags); |
| } |
| |
| static void snd_ad1848_set_data_format(ad1848_t *chip, snd_pcm_hw_params_t *hw_params) |
| { |
| if (hw_params == NULL) { |
| chip->image[AD1848_DATA_FORMAT] = 0x20; |
| } else { |
| chip->image[AD1848_DATA_FORMAT] = |
| snd_ad1848_get_format(params_format(hw_params), params_channels(hw_params)) | |
| snd_ad1848_get_rate(params_rate(hw_params)); |
| } |
| // snd_printk(">>> pmode = 0x%x, dfr = 0x%x\n", pstr->mode, chip->image[AD1848_DATA_FORMAT]); |
| } |
| |
| static int snd_ad1848_open(ad1848_t *chip, unsigned int mode) |
| { |
| unsigned long flags; |
| |
| down(&chip->open_mutex); |
| if (chip->mode & AD1848_MODE_OPEN) { |
| up(&chip->open_mutex); |
| return -EAGAIN; |
| } |
| snd_ad1848_mce_down(chip); |
| |
| #ifdef SNDRV_DEBUG_MCE |
| snd_printk("open: (1)\n"); |
| #endif |
| snd_ad1848_mce_up(chip); |
| spin_lock_irqsave(&chip->reg_lock, flags); |
| chip->image[AD1848_IFACE_CTRL] &= ~(AD1848_PLAYBACK_ENABLE | AD1848_PLAYBACK_PIO | |
| AD1848_CAPTURE_ENABLE | AD1848_CAPTURE_PIO | |
| AD1848_CALIB_MODE); |
| chip->image[AD1848_IFACE_CTRL] |= AD1848_AUTOCALIB; |
| snd_ad1848_out(chip, AD1848_IFACE_CTRL, chip->image[AD1848_IFACE_CTRL]); |
| spin_unlock_irqrestore(&chip->reg_lock, flags); |
| snd_ad1848_mce_down(chip); |
| |
| #ifdef SNDRV_DEBUG_MCE |
| snd_printk("open: (2)\n"); |
| #endif |
| |
| snd_ad1848_set_data_format(chip, NULL); |
| |
| snd_ad1848_mce_up(chip); |
| spin_lock_irqsave(&chip->reg_lock, flags); |
| snd_ad1848_out(chip, AD1848_DATA_FORMAT, chip->image[AD1848_DATA_FORMAT]); |
| spin_unlock_irqrestore(&chip->reg_lock, flags); |
| snd_ad1848_mce_down(chip); |
| |
| #ifdef SNDRV_DEBUG_MCE |
| snd_printk("open: (3)\n"); |
| #endif |
| |
| /* ok. now enable and ack CODEC IRQ */ |
| spin_lock_irqsave(&chip->reg_lock, flags); |
| outb(0, AD1848P(chip, STATUS)); /* clear IRQ */ |
| outb(0, AD1848P(chip, STATUS)); /* clear IRQ */ |
| chip->image[AD1848_PIN_CTRL] |= AD1848_IRQ_ENABLE; |
| snd_ad1848_out(chip, AD1848_PIN_CTRL, chip->image[AD1848_PIN_CTRL]); |
| spin_unlock_irqrestore(&chip->reg_lock, flags); |
| |
| chip->mode = mode; |
| up(&chip->open_mutex); |
| |
| return 0; |
| } |
| |
| static void snd_ad1848_close(ad1848_t *chip) |
| { |
| unsigned long flags; |
| |
| down(&chip->open_mutex); |
| if (!chip->mode) { |
| up(&chip->open_mutex); |
| return; |
| } |
| /* disable IRQ */ |
| spin_lock_irqsave(&chip->reg_lock, flags); |
| outb(0, AD1848P(chip, STATUS)); /* clear IRQ */ |
| outb(0, AD1848P(chip, STATUS)); /* clear IRQ */ |
| chip->image[AD1848_PIN_CTRL] &= ~AD1848_IRQ_ENABLE; |
| snd_ad1848_out(chip, AD1848_PIN_CTRL, chip->image[AD1848_PIN_CTRL]); |
| spin_unlock_irqrestore(&chip->reg_lock, flags); |
| |
| /* now disable capture & playback */ |
| |
| snd_ad1848_mce_up(chip); |
| spin_lock_irqsave(&chip->reg_lock, flags); |
| chip->image[AD1848_IFACE_CTRL] &= ~(AD1848_PLAYBACK_ENABLE | AD1848_PLAYBACK_PIO | |
| AD1848_CAPTURE_ENABLE | AD1848_CAPTURE_PIO); |
| snd_ad1848_out(chip, AD1848_IFACE_CTRL, chip->image[AD1848_IFACE_CTRL]); |
| spin_unlock_irqrestore(&chip->reg_lock, flags); |
| snd_ad1848_mce_down(chip); |
| |
| /* clear IRQ again */ |
| spin_lock_irqsave(&chip->reg_lock, flags); |
| outb(0, AD1848P(chip, STATUS)); /* clear IRQ */ |
| outb(0, AD1848P(chip, STATUS)); /* clear IRQ */ |
| spin_unlock_irqrestore(&chip->reg_lock, flags); |
| |
| chip->mode = 0; |
| up(&chip->open_mutex); |
| } |
| |
| /* |
| * ok.. exported functions.. |
| */ |
| |
| static int snd_ad1848_playback_trigger(snd_pcm_substream_t * substream, |
| int cmd) |
| { |
| ad1848_t *chip = snd_pcm_substream_chip(substream); |
| return snd_ad1848_trigger(chip, AD1848_PLAYBACK_ENABLE, SNDRV_PCM_STREAM_PLAYBACK, cmd); |
| } |
| |
| static int snd_ad1848_capture_trigger(snd_pcm_substream_t * substream, |
| int cmd) |
| { |
| ad1848_t *chip = snd_pcm_substream_chip(substream); |
| return snd_ad1848_trigger(chip, AD1848_CAPTURE_ENABLE, SNDRV_PCM_STREAM_CAPTURE, cmd); |
| } |
| |
| static int snd_ad1848_playback_hw_params(snd_pcm_substream_t * substream, |
| snd_pcm_hw_params_t * hw_params) |
| { |
| ad1848_t *chip = snd_pcm_substream_chip(substream); |
| unsigned long flags; |
| int err; |
| |
| if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0) |
| return err; |
| snd_ad1848_calibrate_mute(chip, 1); |
| snd_ad1848_set_data_format(chip, hw_params); |
| snd_ad1848_mce_up(chip); |
| spin_lock_irqsave(&chip->reg_lock, flags); |
| snd_ad1848_out(chip, AD1848_DATA_FORMAT, chip->image[AD1848_DATA_FORMAT]); |
| spin_unlock_irqrestore(&chip->reg_lock, flags); |
| snd_ad1848_mce_down(chip); |
| snd_ad1848_calibrate_mute(chip, 0); |
| return 0; |
| } |
| |
| static int snd_ad1848_playback_hw_free(snd_pcm_substream_t * substream) |
| { |
| return snd_pcm_lib_free_pages(substream); |
| } |
| |
| static int snd_ad1848_playback_prepare(snd_pcm_substream_t * substream) |
| { |
| ad1848_t *chip = snd_pcm_substream_chip(substream); |
| snd_pcm_runtime_t *runtime = substream->runtime; |
| unsigned long flags; |
| unsigned int size = snd_pcm_lib_buffer_bytes(substream); |
| unsigned int count = snd_pcm_lib_period_bytes(substream); |
| |
| chip->dma_size = size; |
| chip->image[AD1848_IFACE_CTRL] &= ~(AD1848_PLAYBACK_ENABLE | AD1848_PLAYBACK_PIO); |
| snd_dma_program(chip->dma, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT); |
| count = snd_ad1848_get_count(chip->image[AD1848_DATA_FORMAT], count) - 1; |
| spin_lock_irqsave(&chip->reg_lock, flags); |
| snd_ad1848_out(chip, AD1848_DATA_LWR_CNT, (unsigned char) count); |
| snd_ad1848_out(chip, AD1848_DATA_UPR_CNT, (unsigned char) (count >> 8)); |
| spin_unlock_irqrestore(&chip->reg_lock, flags); |
| return 0; |
| } |
| |
| static int snd_ad1848_capture_hw_params(snd_pcm_substream_t * substream, |
| snd_pcm_hw_params_t * hw_params) |
| { |
| ad1848_t *chip = snd_pcm_substream_chip(substream); |
| unsigned long flags; |
| int err; |
| |
| if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0) |
| return err; |
| snd_ad1848_calibrate_mute(chip, 1); |
| snd_ad1848_set_data_format(chip, hw_params); |
| snd_ad1848_mce_up(chip); |
| spin_lock_irqsave(&chip->reg_lock, flags); |
| snd_ad1848_out(chip, AD1848_DATA_FORMAT, chip->image[AD1848_DATA_FORMAT]); |
| spin_unlock_irqrestore(&chip->reg_lock, flags); |
| snd_ad1848_mce_down(chip); |
| snd_ad1848_calibrate_mute(chip, 0); |
| return 0; |
| } |
| |
| static int snd_ad1848_capture_hw_free(snd_pcm_substream_t * substream) |
| { |
| return snd_pcm_lib_free_pages(substream); |
| } |
| |
| static int snd_ad1848_capture_prepare(snd_pcm_substream_t * substream) |
| { |
| ad1848_t *chip = snd_pcm_substream_chip(substream); |
| snd_pcm_runtime_t *runtime = substream->runtime; |
| unsigned long flags; |
| unsigned int size = snd_pcm_lib_buffer_bytes(substream); |
| unsigned int count = snd_pcm_lib_period_bytes(substream); |
| |
| chip->dma_size = size; |
| chip->image[AD1848_IFACE_CTRL] &= ~(AD1848_CAPTURE_ENABLE | AD1848_CAPTURE_PIO); |
| snd_dma_program(chip->dma, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT); |
| count = snd_ad1848_get_count(chip->image[AD1848_DATA_FORMAT], count) - 1; |
| spin_lock_irqsave(&chip->reg_lock, flags); |
| snd_ad1848_out(chip, AD1848_DATA_LWR_CNT, (unsigned char) count); |
| snd_ad1848_out(chip, AD1848_DATA_UPR_CNT, (unsigned char) (count >> 8)); |
| spin_unlock_irqrestore(&chip->reg_lock, flags); |
| return 0; |
| } |
| |
| static irqreturn_t snd_ad1848_interrupt(int irq, void *dev_id, struct pt_regs *regs) |
| { |
| ad1848_t *chip = dev_id; |
| |
| if ((chip->mode & AD1848_MODE_PLAY) && chip->playback_substream && |
| (chip->mode & AD1848_MODE_RUNNING)) |
| snd_pcm_period_elapsed(chip->playback_substream); |
| if ((chip->mode & AD1848_MODE_CAPTURE) && chip->capture_substream && |
| (chip->mode & AD1848_MODE_RUNNING)) |
| snd_pcm_period_elapsed(chip->capture_substream); |
| outb(0, AD1848P(chip, STATUS)); /* clear global interrupt bit */ |
| return IRQ_HANDLED; |
| } |
| |
| static snd_pcm_uframes_t snd_ad1848_playback_pointer(snd_pcm_substream_t * substream) |
| { |
| ad1848_t *chip = snd_pcm_substream_chip(substream); |
| size_t ptr; |
| |
| if (!(chip->image[AD1848_IFACE_CTRL] & AD1848_PLAYBACK_ENABLE)) |
| return 0; |
| ptr = snd_dma_pointer(chip->dma, chip->dma_size); |
| return bytes_to_frames(substream->runtime, ptr); |
| } |
| |
| static snd_pcm_uframes_t snd_ad1848_capture_pointer(snd_pcm_substream_t * substream) |
| { |
| ad1848_t *chip = snd_pcm_substream_chip(substream); |
| size_t ptr; |
| |
| if (!(chip->image[AD1848_IFACE_CTRL] & AD1848_CAPTURE_ENABLE)) |
| return 0; |
| ptr = snd_dma_pointer(chip->dma, chip->dma_size); |
| return bytes_to_frames(substream->runtime, ptr); |
| } |
| |
| /* |
| |
| */ |
| |
| static void snd_ad1848_thinkpad_twiddle(ad1848_t *chip, int on) { |
| |
| int tmp; |
| |
| if (!chip->thinkpad_flag) return; |
| |
| outb(0x1c, AD1848_THINKPAD_CTL_PORT1); |
| tmp = inb(AD1848_THINKPAD_CTL_PORT2); |
| |
| if (on) |
| /* turn it on */ |
| tmp |= AD1848_THINKPAD_CS4248_ENABLE_BIT; |
| else |
| /* turn it off */ |
| tmp &= ~AD1848_THINKPAD_CS4248_ENABLE_BIT; |
| |
| outb(tmp, AD1848_THINKPAD_CTL_PORT2); |
| |
| } |
| |
| #ifdef CONFIG_PM |
| static int snd_ad1848_suspend(snd_card_t *card, pm_message_t state) |
| { |
| ad1848_t *chip = card->pm_private_data; |
| |
| snd_pcm_suspend_all(chip->pcm); |
| /* FIXME: save registers? */ |
| |
| if (chip->thinkpad_flag) |
| snd_ad1848_thinkpad_twiddle(chip, 0); |
| |
| return 0; |
| } |
| |
| static int snd_ad1848_resume(snd_card_t *card) |
| { |
| ad1848_t *chip = card->pm_private_data; |
| |
| if (chip->thinkpad_flag) |
| snd_ad1848_thinkpad_twiddle(chip, 1); |
| |
| /* FIXME: restore registers? */ |
| |
| return 0; |
| } |
| #endif /* CONFIG_PM */ |
| |
| static int snd_ad1848_probe(ad1848_t * chip) |
| { |
| unsigned long flags; |
| int i, id, rev, ad1847; |
| unsigned char *ptr; |
| |
| #if 0 |
| snd_ad1848_debug(chip); |
| #endif |
| id = ad1847 = 0; |
| for (i = 0; i < 1000; i++) { |
| mb(); |
| if (inb(AD1848P(chip, REGSEL)) & AD1848_INIT) |
| udelay(500); |
| else { |
| spin_lock_irqsave(&chip->reg_lock, flags); |
| snd_ad1848_out(chip, AD1848_MISC_INFO, 0x00); |
| snd_ad1848_out(chip, AD1848_LEFT_INPUT, 0xaa); |
| snd_ad1848_out(chip, AD1848_RIGHT_INPUT, 0x45); |
| rev = snd_ad1848_in(chip, AD1848_RIGHT_INPUT); |
| if (rev == 0x65) { |
| spin_unlock_irqrestore(&chip->reg_lock, flags); |
| id = 1; |
| ad1847 = 1; |
| break; |
| } |
| if (snd_ad1848_in(chip, AD1848_LEFT_INPUT) == 0xaa && rev == 0x45) { |
| spin_unlock_irqrestore(&chip->reg_lock, flags); |
| id = 1; |
| break; |
| } |
| spin_unlock_irqrestore(&chip->reg_lock, flags); |
| } |
| } |
| if (id != 1) |
| return -ENODEV; /* no valid device found */ |
| if (chip->hardware == AD1848_HW_DETECT) { |
| if (ad1847) { |
| chip->hardware = AD1848_HW_AD1847; |
| } else { |
| chip->hardware = AD1848_HW_AD1848; |
| rev = snd_ad1848_in(chip, AD1848_MISC_INFO); |
| if (rev & 0x80) { |
| chip->hardware = AD1848_HW_CS4248; |
| } else if ((rev & 0x0f) == 0x0a) { |
| snd_ad1848_out(chip, AD1848_MISC_INFO, 0x40); |
| for (i = 0; i < 16; ++i) { |
| if (snd_ad1848_in(chip, i) != snd_ad1848_in(chip, i + 16)) { |
| chip->hardware = AD1848_HW_CMI8330; |
| break; |
| } |
| } |
| snd_ad1848_out(chip, AD1848_MISC_INFO, 0x00); |
| } |
| } |
| } |
| spin_lock_irqsave(&chip->reg_lock, flags); |
| inb(AD1848P(chip, STATUS)); /* clear any pendings IRQ */ |
| outb(0, AD1848P(chip, STATUS)); |
| mb(); |
| spin_unlock_irqrestore(&chip->reg_lock, flags); |
| |
| chip->image[AD1848_MISC_INFO] = 0x00; |
| chip->image[AD1848_IFACE_CTRL] = |
| (chip->image[AD1848_IFACE_CTRL] & ~AD1848_SINGLE_DMA) | AD1848_SINGLE_DMA; |
| ptr = (unsigned char *) &chip->image; |
| snd_ad1848_mce_down(chip); |
| spin_lock_irqsave(&chip->reg_lock, flags); |
| for (i = 0; i < 16; i++) /* ok.. fill all AD1848 registers */ |
| snd_ad1848_out(chip, i, *ptr++); |
| spin_unlock_irqrestore(&chip->reg_lock, flags); |
| snd_ad1848_mce_up(chip); |
| snd_ad1848_mce_down(chip); |
| return 0; /* all things are ok.. */ |
| } |
| |
| /* |
| |
| */ |
| |
| static snd_pcm_hardware_t snd_ad1848_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), |
| .rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000, |
| .rate_min = 5510, |
| .rate_max = 48000, |
| .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 snd_pcm_hardware_t snd_ad1848_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), |
| .rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000, |
| .rate_min = 5510, |
| .rate_max = 48000, |
| .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_ad1848_playback_open(snd_pcm_substream_t * substream) |
| { |
| ad1848_t *chip = snd_pcm_substream_chip(substream); |
| snd_pcm_runtime_t *runtime = substream->runtime; |
| int err; |
| |
| if ((err = snd_ad1848_open(chip, AD1848_MODE_PLAY)) < 0) |
| return err; |
| chip->playback_substream = substream; |
| runtime->hw = snd_ad1848_playback; |
| snd_pcm_limit_isa_dma_size(chip->dma, &runtime->hw.buffer_bytes_max); |
| snd_pcm_limit_isa_dma_size(chip->dma, &runtime->hw.period_bytes_max); |
| snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hw_constraints_rates); |
| return 0; |
| } |
| |
| static int snd_ad1848_capture_open(snd_pcm_substream_t * substream) |
| { |
| ad1848_t *chip = snd_pcm_substream_chip(substream); |
| snd_pcm_runtime_t *runtime = substream->runtime; |
| int err; |
| |
| if ((err = snd_ad1848_open(chip, AD1848_MODE_CAPTURE)) < 0) |
| return err; |
| chip->capture_substream = substream; |
| runtime->hw = snd_ad1848_capture; |
| snd_pcm_limit_isa_dma_size(chip->dma, &runtime->hw.buffer_bytes_max); |
| snd_pcm_limit_isa_dma_size(chip->dma, &runtime->hw.period_bytes_max); |
| snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hw_constraints_rates); |
| return 0; |
| } |
| |
| static int snd_ad1848_playback_close(snd_pcm_substream_t * substream) |
| { |
| ad1848_t *chip = snd_pcm_substream_chip(substream); |
| |
| chip->mode &= ~AD1848_MODE_PLAY; |
| chip->playback_substream = NULL; |
| snd_ad1848_close(chip); |
| return 0; |
| } |
| |
| static int snd_ad1848_capture_close(snd_pcm_substream_t * substream) |
| { |
| ad1848_t *chip = snd_pcm_substream_chip(substream); |
| |
| chip->mode &= ~AD1848_MODE_CAPTURE; |
| chip->capture_substream = NULL; |
| snd_ad1848_close(chip); |
| return 0; |
| } |
| |
| static int snd_ad1848_free(ad1848_t *chip) |
| { |
| if (chip->res_port) { |
| release_resource(chip->res_port); |
| kfree_nocheck(chip->res_port); |
| } |
| if (chip->irq >= 0) |
| free_irq(chip->irq, (void *) chip); |
| if (chip->dma >= 0) { |
| snd_dma_disable(chip->dma); |
| free_dma(chip->dma); |
| } |
| kfree(chip); |
| return 0; |
| } |
| |
| static int snd_ad1848_dev_free(snd_device_t *device) |
| { |
| ad1848_t *chip = device->device_data; |
| return snd_ad1848_free(chip); |
| } |
| |
| static const char *snd_ad1848_chip_id(ad1848_t *chip) |
| { |
| switch (chip->hardware) { |
| case AD1848_HW_AD1847: return "AD1847"; |
| case AD1848_HW_AD1848: return "AD1848"; |
| case AD1848_HW_CS4248: return "CS4248"; |
| case AD1848_HW_CMI8330: return "CMI8330/C3D"; |
| default: return "???"; |
| } |
| } |
| |
| int snd_ad1848_create(snd_card_t * card, |
| unsigned long port, |
| int irq, int dma, |
| unsigned short hardware, |
| ad1848_t ** rchip) |
| { |
| static snd_device_ops_t ops = { |
| .dev_free = snd_ad1848_dev_free, |
| }; |
| ad1848_t *chip; |
| int err; |
| |
| *rchip = NULL; |
| chip = kzalloc(sizeof(*chip), GFP_KERNEL); |
| if (chip == NULL) |
| return -ENOMEM; |
| spin_lock_init(&chip->reg_lock); |
| init_MUTEX(&chip->open_mutex); |
| chip->card = card; |
| chip->port = port; |
| chip->irq = -1; |
| chip->dma = -1; |
| chip->hardware = hardware; |
| memcpy(&chip->image, &snd_ad1848_original_image, sizeof(snd_ad1848_original_image)); |
| |
| if ((chip->res_port = request_region(port, 4, "AD1848")) == NULL) { |
| snd_printk(KERN_ERR "ad1848: can't grab port 0x%lx\n", port); |
| snd_ad1848_free(chip); |
| return -EBUSY; |
| } |
| if (request_irq(irq, snd_ad1848_interrupt, SA_INTERRUPT, "AD1848", (void *) chip)) { |
| snd_printk(KERN_ERR "ad1848: can't grab IRQ %d\n", irq); |
| snd_ad1848_free(chip); |
| return -EBUSY; |
| } |
| chip->irq = irq; |
| if (request_dma(dma, "AD1848")) { |
| snd_printk(KERN_ERR "ad1848: can't grab DMA %d\n", dma); |
| snd_ad1848_free(chip); |
| return -EBUSY; |
| } |
| chip->dma = dma; |
| |
| if (hardware == AD1848_HW_THINKPAD) { |
| chip->thinkpad_flag = 1; |
| chip->hardware = AD1848_HW_DETECT; /* reset */ |
| snd_ad1848_thinkpad_twiddle(chip, 1); |
| snd_card_set_isa_pm_callback(card, snd_ad1848_suspend, snd_ad1848_resume, chip); |
| } |
| |
| if (snd_ad1848_probe(chip) < 0) { |
| snd_ad1848_free(chip); |
| return -ENODEV; |
| } |
| |
| /* Register device */ |
| if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) { |
| snd_ad1848_free(chip); |
| return err; |
| } |
| |
| *rchip = chip; |
| return 0; |
| } |
| |
| static snd_pcm_ops_t snd_ad1848_playback_ops = { |
| .open = snd_ad1848_playback_open, |
| .close = snd_ad1848_playback_close, |
| .ioctl = snd_ad1848_ioctl, |
| .hw_params = snd_ad1848_playback_hw_params, |
| .hw_free = snd_ad1848_playback_hw_free, |
| .prepare = snd_ad1848_playback_prepare, |
| .trigger = snd_ad1848_playback_trigger, |
| .pointer = snd_ad1848_playback_pointer, |
| }; |
| |
| static snd_pcm_ops_t snd_ad1848_capture_ops = { |
| .open = snd_ad1848_capture_open, |
| .close = snd_ad1848_capture_close, |
| .ioctl = snd_ad1848_ioctl, |
| .hw_params = snd_ad1848_capture_hw_params, |
| .hw_free = snd_ad1848_capture_hw_free, |
| .prepare = snd_ad1848_capture_prepare, |
| .trigger = snd_ad1848_capture_trigger, |
| .pointer = snd_ad1848_capture_pointer, |
| }; |
| |
| static void snd_ad1848_pcm_free(snd_pcm_t *pcm) |
| { |
| ad1848_t *chip = pcm->private_data; |
| chip->pcm = NULL; |
| snd_pcm_lib_preallocate_free_for_all(pcm); |
| } |
| |
| int snd_ad1848_pcm(ad1848_t *chip, int device, snd_pcm_t **rpcm) |
| { |
| snd_pcm_t *pcm; |
| int err; |
| |
| if ((err = snd_pcm_new(chip->card, "AD1848", device, 1, 1, &pcm)) < 0) |
| return err; |
| |
| snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ad1848_playback_ops); |
| snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ad1848_capture_ops); |
| |
| pcm->private_free = snd_ad1848_pcm_free; |
| pcm->private_data = chip; |
| pcm->info_flags = SNDRV_PCM_INFO_HALF_DUPLEX; |
| strcpy(pcm->name, snd_ad1848_chip_id(chip)); |
| |
| snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, |
| snd_dma_isa_data(), |
| 64*1024, chip->dma > 3 ? 128*1024 : 64*1024); |
| |
| chip->pcm = pcm; |
| if (rpcm) |
| *rpcm = pcm; |
| return 0; |
| } |
| |
| const snd_pcm_ops_t *snd_ad1848_get_pcm_ops(int direction) |
| { |
| return direction == SNDRV_PCM_STREAM_PLAYBACK ? |
| &snd_ad1848_playback_ops : &snd_ad1848_capture_ops; |
| } |
| |
| /* |
| * MIXER part |
| */ |
| |
| static int snd_ad1848_info_mux(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo) |
| { |
| static char *texts[4] = { |
| "Line", "Aux", "Mic", "Mix" |
| }; |
| |
| uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; |
| uinfo->count = 2; |
| uinfo->value.enumerated.items = 4; |
| if (uinfo->value.enumerated.item > 3) |
| uinfo->value.enumerated.item = 3; |
| strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]); |
| return 0; |
| } |
| |
| static int snd_ad1848_get_mux(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol) |
| { |
| ad1848_t *chip = snd_kcontrol_chip(kcontrol); |
| unsigned long flags; |
| |
| spin_lock_irqsave(&chip->reg_lock, flags); |
| ucontrol->value.enumerated.item[0] = (chip->image[AD1848_LEFT_INPUT] & AD1848_MIXS_ALL) >> 6; |
| ucontrol->value.enumerated.item[1] = (chip->image[AD1848_RIGHT_INPUT] & AD1848_MIXS_ALL) >> 6; |
| spin_unlock_irqrestore(&chip->reg_lock, flags); |
| return 0; |
| } |
| |
| static int snd_ad1848_put_mux(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol) |
| { |
| ad1848_t *chip = snd_kcontrol_chip(kcontrol); |
| unsigned long flags; |
| unsigned short left, right; |
| int change; |
| |
| if (ucontrol->value.enumerated.item[0] > 3 || |
| ucontrol->value.enumerated.item[1] > 3) |
| return -EINVAL; |
| left = ucontrol->value.enumerated.item[0] << 6; |
| right = ucontrol->value.enumerated.item[1] << 6; |
| spin_lock_irqsave(&chip->reg_lock, flags); |
| left = (chip->image[AD1848_LEFT_INPUT] & ~AD1848_MIXS_ALL) | left; |
| right = (chip->image[AD1848_RIGHT_INPUT] & ~AD1848_MIXS_ALL) | right; |
| change = left != chip->image[AD1848_LEFT_INPUT] || |
| right != chip->image[AD1848_RIGHT_INPUT]; |
| snd_ad1848_out(chip, AD1848_LEFT_INPUT, left); |
| snd_ad1848_out(chip, AD1848_RIGHT_INPUT, right); |
| spin_unlock_irqrestore(&chip->reg_lock, flags); |
| return change; |
| } |
| |
| static int snd_ad1848_info_single(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * 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_ad1848_get_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol) |
| { |
| ad1848_t *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->reg_lock, flags); |
| ucontrol->value.integer.value[0] = (chip->image[reg] >> shift) & mask; |
| spin_unlock_irqrestore(&chip->reg_lock, flags); |
| if (invert) |
| ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0]; |
| return 0; |
| } |
| |
| static int snd_ad1848_put_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol) |
| { |
| ad1848_t *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 val; |
| |
| val = (ucontrol->value.integer.value[0] & mask); |
| if (invert) |
| val = mask - val; |
| val <<= shift; |
| spin_lock_irqsave(&chip->reg_lock, flags); |
| val = (chip->image[reg] & ~(mask << shift)) | val; |
| change = val != chip->image[reg]; |
| snd_ad1848_out(chip, reg, val); |
| spin_unlock_irqrestore(&chip->reg_lock, flags); |
| return change; |
| } |
| |
| static int snd_ad1848_info_double(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo) |
| { |
| int mask = (kcontrol->private_value >> 24) & 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_ad1848_get_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol) |
| { |
| ad1848_t *chip = snd_kcontrol_chip(kcontrol); |
| unsigned long flags; |
| int left_reg = kcontrol->private_value & 0xff; |
| int right_reg = (kcontrol->private_value >> 8) & 0xff; |
| int shift_left = (kcontrol->private_value >> 16) & 0x07; |
| int shift_right = (kcontrol->private_value >> 19) & 0x07; |
| int mask = (kcontrol->private_value >> 24) & 0xff; |
| int invert = (kcontrol->private_value >> 22) & 1; |
| |
| spin_lock_irqsave(&chip->reg_lock, flags); |
| ucontrol->value.integer.value[0] = (chip->image[left_reg] >> shift_left) & mask; |
| ucontrol->value.integer.value[1] = (chip->image[right_reg] >> shift_right) & mask; |
| spin_unlock_irqrestore(&chip->reg_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_ad1848_put_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol) |
| { |
| ad1848_t *chip = snd_kcontrol_chip(kcontrol); |
| unsigned long flags; |
| int left_reg = kcontrol->private_value & 0xff; |
| int right_reg = (kcontrol->private_value >> 8) & 0xff; |
| int shift_left = (kcontrol->private_value >> 16) & 0x07; |
| int shift_right = (kcontrol->private_value >> 19) & 0x07; |
| int mask = (kcontrol->private_value >> 24) & 0xff; |
| int invert = (kcontrol->private_value >> 22) & 1; |
| int change; |
| unsigned short 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->reg_lock, flags); |
| if (left_reg != right_reg) { |
| val1 = (chip->image[left_reg] & ~(mask << shift_left)) | val1; |
| val2 = (chip->image[right_reg] & ~(mask << shift_right)) | val2; |
| change = val1 != chip->image[left_reg] || val2 != chip->image[right_reg]; |
| snd_ad1848_out(chip, left_reg, val1); |
| snd_ad1848_out(chip, right_reg, val2); |
| } else { |
| val1 = (chip->image[left_reg] & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2; |
| change = val1 != chip->image[left_reg]; |
| snd_ad1848_out(chip, left_reg, val1); |
| } |
| spin_unlock_irqrestore(&chip->reg_lock, flags); |
| return change; |
| } |
| |
| /* |
| */ |
| int snd_ad1848_add_ctl(ad1848_t *chip, const char *name, int index, int type, unsigned long value) |
| { |
| static snd_kcontrol_new_t newctls[] = { |
| [AD1848_MIX_SINGLE] = { |
| .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
| .info = snd_ad1848_info_single, |
| .get = snd_ad1848_get_single, |
| .put = snd_ad1848_put_single, |
| }, |
| [AD1848_MIX_DOUBLE] = { |
| .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
| .info = snd_ad1848_info_double, |
| .get = snd_ad1848_get_double, |
| .put = snd_ad1848_put_double, |
| }, |
| [AD1848_MIX_CAPTURE] = { |
| .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
| .info = snd_ad1848_info_mux, |
| .get = snd_ad1848_get_mux, |
| .put = snd_ad1848_put_mux, |
| }, |
| }; |
| snd_kcontrol_t *ctl; |
| int err; |
| |
| ctl = snd_ctl_new1(&newctls[type], chip); |
| if (! ctl) |
| return -ENOMEM; |
| strlcpy(ctl->id.name, name, sizeof(ctl->id.name)); |
| ctl->id.index = index; |
| ctl->private_value = value; |
| if ((err = snd_ctl_add(chip->card, ctl)) < 0) { |
| snd_ctl_free_one(ctl); |
| return err; |
| } |
| return 0; |
| } |
| |
| |
| static struct ad1848_mix_elem snd_ad1848_controls[] = { |
| AD1848_DOUBLE("PCM Playback Switch", 0, AD1848_LEFT_OUTPUT, AD1848_RIGHT_OUTPUT, 7, 7, 1, 1), |
| AD1848_DOUBLE("PCM Playback Volume", 0, AD1848_LEFT_OUTPUT, AD1848_RIGHT_OUTPUT, 0, 0, 63, 1), |
| AD1848_DOUBLE("Aux Playback Switch", 0, AD1848_AUX1_LEFT_INPUT, AD1848_AUX1_RIGHT_INPUT, 7, 7, 1, 1), |
| AD1848_DOUBLE("Aux Playback Volume", 0, AD1848_AUX1_LEFT_INPUT, AD1848_AUX1_RIGHT_INPUT, 0, 0, 31, 1), |
| AD1848_DOUBLE("Aux Playback Switch", 1, AD1848_AUX2_LEFT_INPUT, AD1848_AUX2_RIGHT_INPUT, 7, 7, 1, 1), |
| AD1848_DOUBLE("Aux Playback Volume", 1, AD1848_AUX2_LEFT_INPUT, AD1848_AUX2_RIGHT_INPUT, 0, 0, 31, 1), |
| AD1848_DOUBLE("Capture Volume", 0, AD1848_LEFT_INPUT, AD1848_RIGHT_INPUT, 0, 0, 15, 0), |
| { |
| .name = "Capture Source", |
| .type = AD1848_MIX_CAPTURE, |
| }, |
| AD1848_SINGLE("Loopback Capture Switch", 0, AD1848_LOOPBACK, 0, 1, 0), |
| AD1848_SINGLE("Loopback Capture Volume", 0, AD1848_LOOPBACK, 1, 63, 0) |
| }; |
| |
| int snd_ad1848_mixer(ad1848_t *chip) |
| { |
| snd_card_t *card; |
| snd_pcm_t *pcm; |
| unsigned int idx; |
| int err; |
| |
| snd_assert(chip != NULL && chip->pcm != NULL, return -EINVAL); |
| |
| pcm = chip->pcm; |
| card = chip->card; |
| |
| strcpy(card->mixername, pcm->name); |
| |
| for (idx = 0; idx < ARRAY_SIZE(snd_ad1848_controls); idx++) |
| if ((err = snd_ad1848_add_ctl_elem(chip, &snd_ad1848_controls[idx])) < 0) |
| return err; |
| |
| return 0; |
| } |
| |
| EXPORT_SYMBOL(snd_ad1848_out); |
| EXPORT_SYMBOL(snd_ad1848_create); |
| EXPORT_SYMBOL(snd_ad1848_pcm); |
| EXPORT_SYMBOL(snd_ad1848_get_pcm_ops); |
| EXPORT_SYMBOL(snd_ad1848_mixer); |
| EXPORT_SYMBOL(snd_ad1848_add_ctl); |
| |
| /* |
| * INIT part |
| */ |
| |
| static int __init alsa_ad1848_init(void) |
| { |
| return 0; |
| } |
| |
| static void __exit alsa_ad1848_exit(void) |
| { |
| } |
| |
| module_init(alsa_ad1848_init) |
| module_exit(alsa_ad1848_exit) |