* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
-#include <sound/driver.h>
#include <asm/io.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/moduleparam.h>
+#include <linux/mutex.h>
+
#include <sound/core.h>
#include <sound/info.h>
#include <sound/control.h>
unsigned int use_cache: 1; /* use one big coef. table */
unsigned int reset_workaround: 1; /* Workaround for some laptops to avoid freeze */
unsigned int reset_workaround_2: 1; /* Extended workaround for some other laptops to avoid freeze */
+ unsigned int in_resume: 1;
int mixer_base; /* register offset of ac97 mixer */
int mixer_status_offset; /* offset of mixer status reg. */
int irq;
int irq_acks;
- irqreturn_t (*interrupt)(int, void *, struct pt_regs *);
+ irq_handler_t interrupt;
int badintrcount; /* counter to check bogus interrupts */
- struct semaphore irq_mutex;
+ struct mutex irq_mutex;
struct nm256_stream streams[2];
struct snd_ac97 *ac97;
+ unsigned short *ac97_regs; /* register caches, only for valid regs */
struct snd_pcm *pcm;
/*
* PCI ids
*/
-static struct pci_device_id snd_nm256_ids[] = {
- {PCI_VENDOR_ID_NEOMAGIC, PCI_DEVICE_ID_NEOMAGIC_NM256AV_AUDIO, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NEOMAGIC, PCI_DEVICE_ID_NEOMAGIC_NM256ZX_AUDIO, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NEOMAGIC, PCI_DEVICE_ID_NEOMAGIC_NM256XL_PLUS_AUDIO, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+static DEFINE_PCI_DEVICE_TABLE(snd_nm256_ids) = {
+ {PCI_VDEVICE(NEOMAGIC, PCI_DEVICE_ID_NEOMAGIC_NM256AV_AUDIO), 0},
+ {PCI_VDEVICE(NEOMAGIC, PCI_DEVICE_ID_NEOMAGIC_NM256ZX_AUDIO), 0},
+ {PCI_VDEVICE(NEOMAGIC, PCI_DEVICE_ID_NEOMAGIC_NM256XL_PLUS_AUDIO), 0},
{0,},
};
/* acquire interrupt */
static int snd_nm256_acquire_irq(struct nm256 *chip)
{
- down(&chip->irq_mutex);
+ mutex_lock(&chip->irq_mutex);
if (chip->irq < 0) {
- if (request_irq(chip->pci->irq, chip->interrupt, SA_INTERRUPT|SA_SHIRQ,
+ if (request_irq(chip->pci->irq, chip->interrupt, IRQF_SHARED,
chip->card->driver, chip)) {
snd_printk(KERN_ERR "unable to grab IRQ %d\n", chip->pci->irq);
- up(&chip->irq_mutex);
+ mutex_unlock(&chip->irq_mutex);
return -EBUSY;
}
chip->irq = chip->pci->irq;
}
chip->irq_acks++;
- up(&chip->irq_mutex);
+ mutex_unlock(&chip->irq_mutex);
return 0;
}
/* release interrupt */
static void snd_nm256_release_irq(struct nm256 *chip)
{
- down(&chip->irq_mutex);
+ mutex_lock(&chip->irq_mutex);
if (chip->irq_acks > 0)
chip->irq_acks--;
if (chip->irq_acks == 0 && chip->irq >= 0) {
free_irq(chip->irq, chip);
chip->irq = -1;
}
- up(&chip->irq_mutex);
+ mutex_unlock(&chip->irq_mutex);
}
/*
struct nm256_stream *s = substream->runtime->private_data;
int err = 0;
- snd_assert(s != NULL, return -ENXIO);
+ if (snd_BUG_ON(!s))
+ return -ENXIO;
spin_lock(&chip->reg_lock);
switch (cmd) {
struct nm256_stream *s = substream->runtime->private_data;
int err = 0;
- snd_assert(s != NULL, return -ENXIO);
+ if (snd_BUG_ON(!s))
+ return -ENXIO;
spin_lock(&chip->reg_lock);
switch (cmd) {
struct snd_pcm_runtime *runtime = substream->runtime;
struct nm256_stream *s = runtime->private_data;
- snd_assert(s, return -ENXIO);
+ if (snd_BUG_ON(!s))
+ return -ENXIO;
s->dma_size = frames_to_bytes(runtime, substream->runtime->buffer_size);
s->period_size = frames_to_bytes(runtime, substream->runtime->period_size);
s->periods = substream->runtime->periods;
struct nm256_stream *s = substream->runtime->private_data;
unsigned long curp;
- snd_assert(s, return 0);
+ if (snd_BUG_ON(!s))
+ return 0;
curp = snd_nm256_readl(chip, NM_PBUFFER_CURRP) - (unsigned long)s->buf;
curp %= s->dma_size;
return bytes_to_frames(substream->runtime, curp);
struct nm256_stream *s = substream->runtime->private_data;
unsigned long curp;
- snd_assert(s != NULL, return 0);
+ if (snd_BUG_ON(!s))
+ return 0;
curp = snd_nm256_readl(chip, NM_RBUFFER_CURRP) - (unsigned long)s->buf;
curp %= s->dma_size;
return bytes_to_frames(substream->runtime, curp);
runtime->private_data = s;
s->substream = substream;
- snd_pcm_set_sync(substream);
snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
&constraints_rates);
}
*/
static irqreturn_t
-snd_nm256_interrupt(int irq, void *dev_id, struct pt_regs *dummy)
+snd_nm256_interrupt(int irq, void *dev_id)
{
struct nm256 *chip = dev_id;
u16 status;
*/
static irqreturn_t
-snd_nm256_interrupt_zx(int irq, void *dev_id, struct pt_regs *dummy)
+snd_nm256_interrupt_zx(int irq, void *dev_id)
{
struct nm256 *chip = dev_id;
u32 status;
return 0;
}
+/*
+ * Initial register values to be written to the AC97 mixer.
+ * While most of these are identical to the reset values, we do this
+ * so that we have most of the register contents cached--this avoids
+ * reading from the mixer directly (which seems to be problematic,
+ * probably due to ignorance).
+ */
+
+struct initialValues {
+ unsigned short reg;
+ unsigned short value;
+};
+
+static struct initialValues nm256_ac97_init_val[] =
+{
+ { AC97_MASTER, 0x8000 },
+ { AC97_HEADPHONE, 0x8000 },
+ { AC97_MASTER_MONO, 0x8000 },
+ { AC97_PC_BEEP, 0x8000 },
+ { AC97_PHONE, 0x8008 },
+ { AC97_MIC, 0x8000 },
+ { AC97_LINE, 0x8808 },
+ { AC97_CD, 0x8808 },
+ { AC97_VIDEO, 0x8808 },
+ { AC97_AUX, 0x8808 },
+ { AC97_PCM, 0x8808 },
+ { AC97_REC_SEL, 0x0000 },
+ { AC97_REC_GAIN, 0x0B0B },
+ { AC97_GENERAL_PURPOSE, 0x0000 },
+ { AC97_3D_CONTROL, 0x8000 },
+ { AC97_VENDOR_ID1, 0x8384 },
+ { AC97_VENDOR_ID2, 0x7609 },
+};
+
+static int nm256_ac97_idx(unsigned short reg)
+{
+ int i;
+ for (i = 0; i < ARRAY_SIZE(nm256_ac97_init_val); i++)
+ if (nm256_ac97_init_val[i].reg == reg)
+ return i;
+ return -1;
+}
+
/*
+ * some nm256 easily crash when reading from mixer registers
+ * thus we're treating it as a write-only mixer and cache the
+ * written values
*/
static unsigned short
snd_nm256_ac97_read(struct snd_ac97 *ac97, unsigned short reg)
{
struct nm256 *chip = ac97->private_data;
- int res;
+ int idx = nm256_ac97_idx(reg);
- if (reg >= 128)
+ if (idx < 0)
return 0;
-
- if (! snd_nm256_ac97_ready(chip))
- return 0;
- res = snd_nm256_readw(chip, chip->mixer_base + reg);
- /* Magic delay. Bleah yucky. */
- msleep(1);
- return res;
+ return chip->ac97_regs[idx];
}
/*
{
struct nm256 *chip = ac97->private_data;
int tries = 2;
+ int idx = nm256_ac97_idx(reg);
u32 base;
+ if (idx < 0)
+ return;
+
base = chip->mixer_base;
snd_nm256_ac97_ready(chip);
while (tries-- > 0) {
snd_nm256_writew(chip, base + reg, val);
msleep(1); /* a little delay here seems better.. */
- if (snd_nm256_ac97_ready(chip))
+ if (snd_nm256_ac97_ready(chip)) {
+ /* successful write: set cache */
+ chip->ac97_regs[idx] = val;
return;
+ }
}
snd_printd("nm256: ac97 codec not ready..\n");
}
+/* static resolution table */
+static struct snd_ac97_res_table nm256_res_table[] = {
+ { AC97_MASTER, 0x1f1f },
+ { AC97_HEADPHONE, 0x1f1f },
+ { AC97_MASTER_MONO, 0x001f },
+ { AC97_PC_BEEP, 0x001f },
+ { AC97_PHONE, 0x001f },
+ { AC97_MIC, 0x001f },
+ { AC97_LINE, 0x1f1f },
+ { AC97_CD, 0x1f1f },
+ { AC97_VIDEO, 0x1f1f },
+ { AC97_AUX, 0x1f1f },
+ { AC97_PCM, 0x1f1f },
+ { AC97_REC_GAIN, 0x0f0f },
+ { } /* terminator */
+};
+
/* initialize the ac97 into a known state */
static void
snd_nm256_ac97_reset(struct snd_ac97 *ac97)
snd_nm256_writeb(chip, 0x6cc, 0x80);
snd_nm256_writeb(chip, 0x6cc, 0x0);
}
+ if (! chip->in_resume) {
+ int i;
+ for (i = 0; i < ARRAY_SIZE(nm256_ac97_init_val); i++) {
+ /* preload the cache, so as to avoid even a single
+ * read of the mixer regs
+ */
+ snd_nm256_ac97_write(ac97, nm256_ac97_init_val[i].reg,
+ nm256_ac97_init_val[i].value);
+ }
+ }
}
/* create an ac97 mixer interface */
{
struct snd_ac97_bus *pbus;
struct snd_ac97_template ac97;
- int i, err;
+ int err;
static struct snd_ac97_bus_ops ops = {
.reset = snd_nm256_ac97_reset,
.write = snd_nm256_ac97_write,
.read = snd_nm256_ac97_read,
};
- /* looks like nm256 hangs up when unexpected registers are touched... */
- static int mixer_regs[] = {
- AC97_MASTER, AC97_HEADPHONE, AC97_MASTER_MONO,
- AC97_PC_BEEP, AC97_PHONE, AC97_MIC, AC97_LINE, AC97_CD,
- AC97_VIDEO, AC97_AUX, AC97_PCM, AC97_REC_SEL,
- AC97_REC_GAIN, AC97_GENERAL_PURPOSE, AC97_3D_CONTROL,
- /*AC97_EXTENDED_ID,*/
- AC97_VENDOR_ID1, AC97_VENDOR_ID2,
- -1
- };
+
+ chip->ac97_regs = kcalloc(ARRAY_SIZE(nm256_ac97_init_val),
+ sizeof(short), GFP_KERNEL);
+ if (! chip->ac97_regs)
+ return -ENOMEM;
if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
return err;
memset(&ac97, 0, sizeof(ac97));
ac97.scaps = AC97_SCAP_AUDIO; /* we support audio! */
- ac97.limited_regs = 1;
- for (i = 0; mixer_regs[i] >= 0; i++)
- set_bit(mixer_regs[i], ac97.reg_accessed);
ac97.private_data = chip;
+ ac97.res_table = nm256_res_table;
pbus->no_vra = 1;
err = snd_ac97_mixer(pbus, &ac97, &chip->ac97);
if (err < 0)
chip->coeffs_current = 0;
pci_disable_device(pci);
pci_save_state(pci);
+ pci_set_power_state(pci, pci_choose_state(pci, state));
return 0;
}
int i;
/* Perform a full reset on the hardware */
+ chip->in_resume = 1;
+
+ pci_set_power_state(pci, PCI_D0);
pci_restore_state(pci);
- pci_enable_device(pci);
+ if (pci_enable_device(pci) < 0) {
+ printk(KERN_ERR "nm256: pci_enable_device failed, "
+ "disabling device\n");
+ snd_card_disconnect(card);
+ return -EIO;
+ }
+ pci_set_master(pci);
+
snd_nm256_init_chip(chip);
/* restore ac97 */
}
snd_power_change_state(card, SNDRV_CTL_POWER_D0);
+ chip->in_resume = 0;
return 0;
}
#endif /* CONFIG_PM */
snd_nm256_capture_stop(chip);
if (chip->irq >= 0)
- synchronize_irq(chip->irq);
+ free_irq(chip->irq, chip);
if (chip->cport)
iounmap(chip->cport);
iounmap(chip->buffer);
release_and_free_resource(chip->res_cport);
release_and_free_resource(chip->res_buffer);
- if (chip->irq >= 0)
- free_irq(chip->irq, chip);
pci_disable_device(chip->pci);
+ kfree(chip->ac97_regs);
kfree(chip);
return 0;
}
chip->use_cache = use_cache;
spin_lock_init(&chip->reg_lock);
chip->irq = -1;
- init_MUTEX(&chip->irq_mutex);
+ mutex_init(&chip->irq_mutex);
/* store buffer sizes in bytes */
chip->streams[SNDRV_PCM_STREAM_PLAYBACK].bufsize = playback_bufsize * 1024;
printk(KERN_ERR " force the driver to load by "
"passing in the module parameter\n");
printk(KERN_ERR " force_ac97=1\n");
- printk(KERN_ERR " or try sb16 or cs423x drivers instead.\n");
+ printk(KERN_ERR " or try sb16, opl3sa2, or "
+ "cs423x drivers instead.\n");
err = -ENXIO;
goto __error;
}
}
-struct nm256_quirk {
- unsigned short vendor;
- unsigned short device;
- int type;
-};
-
enum { NM_BLACKLISTED, NM_RESET_WORKAROUND, NM_RESET_WORKAROUND_2 };
-static struct nm256_quirk nm256_quirks[] __devinitdata = {
+static struct snd_pci_quirk nm256_quirks[] __devinitdata = {
/* HP omnibook 4150 has cs4232 codec internally */
- { .vendor = 0x103c, .device = 0x0007, .type = NM_BLACKLISTED },
- /* Sony PCG-F305 */
- { .vendor = 0x104d, .device = 0x8041, .type = NM_RESET_WORKAROUND },
- /* Dell Latitude LS */
- { .vendor = 0x1028, .device = 0x0080, .type = NM_RESET_WORKAROUND },
- /* Dell Latitude CSx */
- { .vendor = 0x1028, .device = 0x0091, .type = NM_RESET_WORKAROUND_2 },
+ SND_PCI_QUIRK(0x103c, 0x0007, "HP omnibook 4150", NM_BLACKLISTED),
+ /* Reset workarounds to avoid lock-ups */
+ SND_PCI_QUIRK(0x104d, 0x8041, "Sony PCG-F305", NM_RESET_WORKAROUND),
+ SND_PCI_QUIRK(0x1028, 0x0080, "Dell Latitude LS", NM_RESET_WORKAROUND),
+ SND_PCI_QUIRK(0x1028, 0x0091, "Dell Latitude CSx", NM_RESET_WORKAROUND_2),
{ } /* terminator */
};
struct snd_card *card;
struct nm256 *chip;
int err;
- struct nm256_quirk *q;
- u16 subsystem_vendor, subsystem_device;
-
- pci_read_config_word(pci, PCI_SUBSYSTEM_VENDOR_ID, &subsystem_vendor);
- pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &subsystem_device);
-
- for (q = nm256_quirks; q->vendor; q++) {
- if (q->vendor == subsystem_vendor && q->device == subsystem_device) {
- switch (q->type) {
- case NM_BLACKLISTED:
- printk(KERN_INFO "nm256: The device is blacklisted. "
- "Loading stopped\n");
- return -ENODEV;
- case NM_RESET_WORKAROUND_2:
- reset_workaround_2 = 1;
- /* Fall-through */
- case NM_RESET_WORKAROUND:
- reset_workaround = 1;
- break;
- }
+ const struct snd_pci_quirk *q;
+
+ q = snd_pci_quirk_lookup(pci, nm256_quirks);
+ if (q) {
+ snd_printdd(KERN_INFO "nm256: Enabled quirk for %s.\n", q->name);
+ switch (q->value) {
+ case NM_BLACKLISTED:
+ printk(KERN_INFO "nm256: The device is blacklisted. "
+ "Loading stopped\n");
+ return -ENODEV;
+ case NM_RESET_WORKAROUND_2:
+ reset_workaround_2 = 1;
+ /* Fall-through */
+ case NM_RESET_WORKAROUND:
+ reset_workaround = 1;
+ break;
}
}
- card = snd_card_new(index, id, THIS_MODULE, 0);
- if (card == NULL)
- return -ENOMEM;
+ err = snd_card_create(index, id, THIS_MODULE, 0, &card);
+ if (err < 0)
+ return err;
switch (pci->device) {
case PCI_DEVICE_ID_NEOMAGIC_NM256AV_AUDIO:
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff