**************************************************************************
*
* History
- * May 02, 2003 Liam Girdwood <liam.girdwood@wolfsonmicro.com>
+ * May 02, 2003 Liam Girdwood <lrg@slimlogic.co.uk>
* Removed non existant WM9700
* Added support for WM9705, WM9708, WM9709, WM9710, WM9711
* WM9712 and WM9717
#include <linux/pci.h>
#include <linux/ac97_codec.h>
#include <asm/uaccess.h>
+#include <linux/mutex.h>
#define CODEC_ID_BUFSZ 14
{0x43525931, "Cirrus Logic CS4299 rev A", &crystal_digital_ops},
{0x43525933, "Cirrus Logic CS4299 rev C", &crystal_digital_ops},
{0x43525934, "Cirrus Logic CS4299 rev D", &crystal_digital_ops},
+ {0x43585430, "CXT48", &default_ops, AC97_DELUDED_MODEM },
{0x43585442, "CXT66", &default_ops, AC97_DELUDED_MODEM },
{0x44543031, "Diamond Technology DT0893", &default_ops},
{0x45838308, "ESS Allegro ES1988", &null_ops},
{0x57454301, "Winbond 83971D", &null_ops},
};
-static const char *ac97_stereo_enhancements[] =
-{
- /* 0 */ "No 3D Stereo Enhancement",
- /* 1 */ "Analog Devices Phat Stereo",
- /* 2 */ "Creative Stereo Enhancement",
- /* 3 */ "National Semi 3D Stereo Enhancement",
- /* 4 */ "YAMAHA Ymersion",
- /* 5 */ "BBE 3D Stereo Enhancement",
- /* 6 */ "Crystal Semi 3D Stereo Enhancement",
- /* 7 */ "Qsound QXpander",
- /* 8 */ "Spatializer 3D Stereo Enhancement",
- /* 9 */ "SRS 3D Stereo Enhancement",
- /* 10 */ "Platform Tech 3D Stereo Enhancement",
- /* 11 */ "AKM 3D Audio",
- /* 12 */ "Aureal Stereo Enhancement",
- /* 13 */ "Aztech 3D Enhancement",
- /* 14 */ "Binaura 3D Audio Enhancement",
- /* 15 */ "ESS Technology Stereo Enhancement",
- /* 16 */ "Harman International VMAx",
- /* 17 */ "Nvidea 3D Stereo Enhancement",
- /* 18 */ "Philips Incredible Sound",
- /* 19 */ "Texas Instruments 3D Stereo Enhancement",
- /* 20 */ "VLSI Technology 3D Stereo Enhancement",
- /* 21 */ "TriTech 3D Stereo Enhancement",
- /* 22 */ "Realtek 3D Stereo Enhancement",
- /* 23 */ "Samsung 3D Stereo Enhancement",
- /* 24 */ "Wolfson Microelectronics 3D Enhancement",
- /* 25 */ "Delta Integration 3D Enhancement",
- /* 26 */ "SigmaTel 3D Enhancement",
- /* 27 */ "Winbond 3D Stereo Enhancement",
- /* 28 */ "Rockwell 3D Stereo Enhancement",
- /* 29 */ "Reserved 29",
- /* 30 */ "Reserved 30",
- /* 31 */ "Reserved 31"
-};
-
/* this table has default mixer values for all OSS mixers. */
static struct mixer_defaults {
int mixer;
static LIST_HEAD(codecs);
static LIST_HEAD(codec_drivers);
-static DECLARE_MUTEX(codec_sem);
+static DEFINE_MUTEX(codec_mutex);
/* reads the given OSS mixer from the ac97 the caller must have insured that the ac97 knows
about that given mixer, and should be holding a spinlock for the card */
return -EINVAL;
}
-/* entry point for /proc/driver/controller_vendor/ac97/%d */
-int ac97_read_proc (char *page, char **start, off_t off,
- int count, int *eof, void *data)
-{
- int len = 0, cap, extid, val, id1, id2;
- struct ac97_codec *codec;
- int is_ac97_20 = 0;
-
- if ((codec = data) == NULL)
- return -ENODEV;
-
- id1 = codec->codec_read(codec, AC97_VENDOR_ID1);
- id2 = codec->codec_read(codec, AC97_VENDOR_ID2);
- len += sprintf (page+len, "Vendor name : %s\n", codec->name);
- len += sprintf (page+len, "Vendor id : %04X %04X\n", id1, id2);
-
- extid = codec->codec_read(codec, AC97_EXTENDED_ID);
- extid &= ~((1<<2)|(1<<4)|(1<<5)|(1<<10)|(1<<11)|(1<<12)|(1<<13));
- len += sprintf (page+len, "AC97 Version : %s\n",
- extid ? "2.0 or later" : "1.0");
- if (extid) is_ac97_20 = 1;
-
- cap = codec->codec_read(codec, AC97_RESET);
- len += sprintf (page+len, "Capabilities :%s%s%s%s%s%s\n",
- cap & 0x0001 ? " -dedicated MIC PCM IN channel-" : "",
- cap & 0x0002 ? " -reserved1-" : "",
- cap & 0x0004 ? " -bass & treble-" : "",
- cap & 0x0008 ? " -simulated stereo-" : "",
- cap & 0x0010 ? " -headphone out-" : "",
- cap & 0x0020 ? " -loudness-" : "");
- val = cap & 0x00c0;
- len += sprintf (page+len, "DAC resolutions :%s%s%s\n",
- " -16-bit-",
- val & 0x0040 ? " -18-bit-" : "",
- val & 0x0080 ? " -20-bit-" : "");
- val = cap & 0x0300;
- len += sprintf (page+len, "ADC resolutions :%s%s%s\n",
- " -16-bit-",
- val & 0x0100 ? " -18-bit-" : "",
- val & 0x0200 ? " -20-bit-" : "");
- len += sprintf (page+len, "3D enhancement : %s\n",
- ac97_stereo_enhancements[(cap >> 10) & 0x1f]);
-
- val = codec->codec_read(codec, AC97_GENERAL_PURPOSE);
- len += sprintf (page+len, "POP path : %s 3D\n"
- "Sim. stereo : %s\n"
- "3D enhancement : %s\n"
- "Loudness : %s\n"
- "Mono output : %s\n"
- "MIC select : %s\n"
- "ADC/DAC loopback : %s\n",
- val & 0x8000 ? "post" : "pre",
- val & 0x4000 ? "on" : "off",
- val & 0x2000 ? "on" : "off",
- val & 0x1000 ? "on" : "off",
- val & 0x0200 ? "MIC" : "MIX",
- val & 0x0100 ? "MIC2" : "MIC1",
- val & 0x0080 ? "on" : "off");
-
- extid = codec->codec_read(codec, AC97_EXTENDED_ID);
- cap = extid;
- len += sprintf (page+len, "Ext Capabilities :%s%s%s%s%s%s%s\n",
- cap & 0x0001 ? " -var rate PCM audio-" : "",
- cap & 0x0002 ? " -2x PCM audio out-" : "",
- cap & 0x0008 ? " -var rate MIC in-" : "",
- cap & 0x0040 ? " -PCM center DAC-" : "",
- cap & 0x0080 ? " -PCM surround DAC-" : "",
- cap & 0x0100 ? " -PCM LFE DAC-" : "",
- cap & 0x0200 ? " -slot/DAC mappings-" : "");
- if (is_ac97_20) {
- len += sprintf (page+len, "Front DAC rate : %d\n",
- codec->codec_read(codec, AC97_PCM_FRONT_DAC_RATE));
- }
-
- return len;
-}
-
/**
* codec_id - Turn id1/id2 into a PnP string
* @id1: Vendor ID1
struct ac97_codec *ac97_alloc_codec(void)
{
- struct ac97_codec *codec = kmalloc(sizeof(struct ac97_codec), GFP_KERNEL);
+ struct ac97_codec *codec = kzalloc(sizeof(struct ac97_codec), GFP_KERNEL);
if(!codec)
return NULL;
- memset(codec, 0, sizeof(*codec));
spin_lock_init(&codec->lock);
INIT_LIST_HEAD(&codec->list);
return codec;
{
/* Remove from the list first, we don't want to be
"rediscovered" */
- down(&codec_sem);
+ mutex_lock(&codec_mutex);
list_del(&codec->list);
- up(&codec_sem);
+ mutex_unlock(&codec_mutex);
/*
* The driver needs to deal with internal
* locking to avoid accidents here.
* callbacks.
*/
- down(&codec_sem);
+ mutex_lock(&codec_mutex);
list_add(&codec->list, &codecs);
list_for_each(l, &codec_drivers) {
}
}
- up(&codec_sem);
+ mutex_unlock(&codec_mutex);
return 1;
}
#endif
-EXPORT_SYMBOL(ac97_read_proc);
EXPORT_SYMBOL(ac97_probe_codec);
-/*
- * AC97 library support routines
- */
-
-/**
- * ac97_set_dac_rate - set codec rate adaption
- * @codec: ac97 code
- * @rate: rate in hertz
- *
- * Set the DAC rate. Assumes the codec supports VRA. The caller is
- * expected to have checked this little detail.
- */
-
-unsigned int ac97_set_dac_rate(struct ac97_codec *codec, unsigned int rate)
-{
- unsigned int new_rate = rate;
- u32 dacp;
- u32 mast_vol, phone_vol, mono_vol, pcm_vol;
- u32 mute_vol = 0x8000; /* The mute volume? */
-
- if(rate != codec->codec_read(codec, AC97_PCM_FRONT_DAC_RATE))
- {
- /* Mute several registers */
- mast_vol = codec->codec_read(codec, AC97_MASTER_VOL_STEREO);
- mono_vol = codec->codec_read(codec, AC97_MASTER_VOL_MONO);
- phone_vol = codec->codec_read(codec, AC97_HEADPHONE_VOL);
- pcm_vol = codec->codec_read(codec, AC97_PCMOUT_VOL);
- codec->codec_write(codec, AC97_MASTER_VOL_STEREO, mute_vol);
- codec->codec_write(codec, AC97_MASTER_VOL_MONO, mute_vol);
- codec->codec_write(codec, AC97_HEADPHONE_VOL, mute_vol);
- codec->codec_write(codec, AC97_PCMOUT_VOL, mute_vol);
-
- /* Power down the DAC */
- dacp=codec->codec_read(codec, AC97_POWER_CONTROL);
- codec->codec_write(codec, AC97_POWER_CONTROL, dacp|0x0200);
- /* Load the rate and read the effective rate */
- codec->codec_write(codec, AC97_PCM_FRONT_DAC_RATE, rate);
- new_rate=codec->codec_read(codec, AC97_PCM_FRONT_DAC_RATE);
- /* Power it back up */
- codec->codec_write(codec, AC97_POWER_CONTROL, dacp);
-
- /* Restore volumes */
- codec->codec_write(codec, AC97_MASTER_VOL_STEREO, mast_vol);
- codec->codec_write(codec, AC97_MASTER_VOL_MONO, mono_vol);
- codec->codec_write(codec, AC97_HEADPHONE_VOL, phone_vol);
- codec->codec_write(codec, AC97_PCMOUT_VOL, pcm_vol);
- }
- return new_rate;
-}
-
-EXPORT_SYMBOL(ac97_set_dac_rate);
-
-/**
- * ac97_set_adc_rate - set codec rate adaption
- * @codec: ac97 code
- * @rate: rate in hertz
- *
- * Set the ADC rate. Assumes the codec supports VRA. The caller is
- * expected to have checked this little detail.
- */
-
-unsigned int ac97_set_adc_rate(struct ac97_codec *codec, unsigned int rate)
-{
- unsigned int new_rate = rate;
- u32 dacp;
-
- if(rate != codec->codec_read(codec, AC97_PCM_LR_ADC_RATE))
- {
- /* Power down the ADC */
- dacp=codec->codec_read(codec, AC97_POWER_CONTROL);
- codec->codec_write(codec, AC97_POWER_CONTROL, dacp|0x0100);
- /* Load the rate and read the effective rate */
- codec->codec_write(codec, AC97_PCM_LR_ADC_RATE, rate);
- new_rate=codec->codec_read(codec, AC97_PCM_LR_ADC_RATE);
- /* Power it back up */
- codec->codec_write(codec, AC97_POWER_CONTROL, dacp);
- }
- return new_rate;
-}
-
-EXPORT_SYMBOL(ac97_set_adc_rate);
-
-int ac97_save_state(struct ac97_codec *codec)
-{
- return 0;
-}
-
-EXPORT_SYMBOL(ac97_save_state);
-
-int ac97_restore_state(struct ac97_codec *codec)
-{
- int i;
- unsigned int left, right, val;
-
- for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
- if (!supported_mixer(codec, i))
- continue;
-
- val = codec->mixer_state[i];
- right = val >> 8;
- left = val & 0xff;
- codec->write_mixer(codec, i, left, right);
- }
- return 0;
-}
-
-EXPORT_SYMBOL(ac97_restore_state);
-
-/**
- * ac97_register_driver - register a codec helper
- * @driver: Driver handler
- *
- * Register a handler for codecs matching the codec id. The handler
- * attach function is called for all present codecs and will be
- * called when new codecs are discovered.
- */
-
-int ac97_register_driver(struct ac97_driver *driver)
-{
- struct list_head *l;
- struct ac97_codec *c;
-
- down(&codec_sem);
- INIT_LIST_HEAD(&driver->list);
- list_add(&driver->list, &codec_drivers);
-
- list_for_each(l, &codecs)
- {
- c = list_entry(l, struct ac97_codec, list);
- if(c->driver != NULL || ((c->model ^ driver->codec_id) & driver->codec_mask))
- continue;
- if(driver->probe(c, driver))
- continue;
- c->driver = driver;
- }
- up(&codec_sem);
- return 0;
-}
-
-EXPORT_SYMBOL_GPL(ac97_register_driver);
-
-/**
- * ac97_unregister_driver - unregister a codec helper
- * @driver: Driver handler
- *
- * Unregister a handler for codecs matching the codec id. The handler
- * remove function is called for all matching codecs.
- */
-
-void ac97_unregister_driver(struct ac97_driver *driver)
-{
- struct list_head *l;
- struct ac97_codec *c;
-
- down(&codec_sem);
- list_del_init(&driver->list);
-
- list_for_each(l, &codecs)
- {
- c = list_entry(l, struct ac97_codec, list);
- if (c->driver == driver) {
- driver->remove(c, driver);
- c->driver = NULL;
- }
- }
-
- up(&codec_sem);
-}
-
-EXPORT_SYMBOL_GPL(ac97_unregister_driver);
-
-static int swap_headphone(int remove_master)
-{
- struct list_head *l;
- struct ac97_codec *c;
-
- if (remove_master) {
- down(&codec_sem);
- list_for_each(l, &codecs)
- {
- c = list_entry(l, struct ac97_codec, list);
- if (supported_mixer(c, SOUND_MIXER_PHONEOUT))
- c->supported_mixers &= ~SOUND_MASK_PHONEOUT;
- }
- up(&codec_sem);
- } else
- ac97_hw[SOUND_MIXER_PHONEOUT].offset = AC97_MASTER_VOL_STEREO;
-
- /* Scale values already match */
- ac97_hw[SOUND_MIXER_VOLUME].offset = AC97_MASTER_VOL_MONO;
- return 0;
-}
-
-static int apply_quirk(int quirk)
-{
- switch (quirk) {
- case AC97_TUNE_NONE:
- return 0;
- case AC97_TUNE_HP_ONLY:
- return swap_headphone(1);
- case AC97_TUNE_SWAP_HP:
- return swap_headphone(0);
- case AC97_TUNE_SWAP_SURROUND:
- return -ENOSYS; /* not yet implemented */
- case AC97_TUNE_AD_SHARING:
- return -ENOSYS; /* not yet implemented */
- case AC97_TUNE_ALC_JACK:
- return -ENOSYS; /* not yet implemented */
- }
- return -EINVAL;
-}
-
-/**
- * ac97_tune_hardware - tune up the hardware
- * @pdev: pci_dev pointer
- * @quirk: quirk list
- * @override: explicit quirk value (overrides if not AC97_TUNE_DEFAULT)
- *
- * Do some workaround for each pci device, such as renaming of the
- * headphone (true line-out) control as "Master".
- * The quirk-list must be terminated with a zero-filled entry.
- *
- * Returns zero if successful, or a negative error code on failure.
- */
-
-int ac97_tune_hardware(struct pci_dev *pdev, struct ac97_quirk *quirk, int override)
-{
- int result;
-
- if (!quirk)
- return -EINVAL;
-
- if (override != AC97_TUNE_DEFAULT) {
- result = apply_quirk(override);
- if (result < 0)
- printk(KERN_ERR "applying quirk type %d failed (%d)\n", override, result);
- return result;
- }
-
- for (; quirk->vendor; quirk++) {
- if (quirk->vendor != pdev->subsystem_vendor)
- continue;
- if ((! quirk->mask && quirk->device == pdev->subsystem_device) ||
- quirk->device == (quirk->mask & pdev->subsystem_device)) {
-#ifdef DEBUG
- printk("ac97 quirk for %s (%04x:%04x)\n", quirk->name, ac97->subsystem_vendor, pdev->subsystem_device);
-#endif
- result = apply_quirk(quirk->type);
- if (result < 0)
- printk(KERN_ERR "applying quirk type %d for %s failed (%d)\n", quirk->type, quirk->name, result);
- return result;
- }
- }
- return 0;
-}
-
-EXPORT_SYMBOL_GPL(ac97_tune_hardware);
-
MODULE_LICENSE("GPL");
+
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff