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Diffstat (limited to 'sound/pci/sis7019.c')
-rw-r--r--sound/pci/sis7019.c93
1 files changed, 67 insertions, 26 deletions
diff --git a/sound/pci/sis7019.c b/sound/pci/sis7019.c
index bcf61524a13f..ff500a87f769 100644
--- a/sound/pci/sis7019.c
+++ b/sound/pci/sis7019.c
@@ -25,7 +25,7 @@
#include <linux/pci.h>
#include <linux/time.h>
#include <linux/slab.h>
-#include <linux/moduleparam.h>
+#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <sound/core.h>
@@ -40,7 +40,8 @@ MODULE_SUPPORTED_DEVICE("{{SiS,SiS7019 Audio Accelerator}}");
static int index = SNDRV_DEFAULT_IDX1; /* Index 0-MAX */
static char *id = SNDRV_DEFAULT_STR1; /* ID for this card */
-static int enable = 1;
+static bool enable = 1;
+static int codecs = 1;
module_param(index, int, 0444);
MODULE_PARM_DESC(index, "Index value for SiS7019 Audio Accelerator.");
@@ -48,6 +49,8 @@ module_param(id, charp, 0444);
MODULE_PARM_DESC(id, "ID string for SiS7019 Audio Accelerator.");
module_param(enable, bool, 0444);
MODULE_PARM_DESC(enable, "Enable SiS7019 Audio Accelerator.");
+module_param(codecs, int, 0444);
+MODULE_PARM_DESC(codecs, "Set bit to indicate that codec number is expected to be present (default 1)");
static DEFINE_PCI_DEVICE_TABLE(snd_sis7019_ids) = {
{ PCI_DEVICE(PCI_VENDOR_ID_SI, 0x7019) },
@@ -140,6 +143,9 @@ struct sis7019 {
dma_addr_t silence_dma_addr;
};
+/* These values are also used by the module param 'codecs' to indicate
+ * which codecs should be present.
+ */
#define SIS_PRIMARY_CODEC_PRESENT 0x0001
#define SIS_SECONDARY_CODEC_PRESENT 0x0002
#define SIS_TERTIARY_CODEC_PRESENT 0x0004
@@ -977,7 +983,7 @@ timeout:
mutex_unlock(&sis->ac97_mutex);
if (!count) {
- printk(KERN_ERR "sis7019: ac97 codec %d timeout cmd 0x%08x\n",
+ dev_err(&sis->pci->dev, "ac97 codec %d timeout cmd 0x%08x\n",
codec, cmd);
}
@@ -1078,6 +1084,7 @@ static int sis_chip_init(struct sis7019 *sis)
{
unsigned long io = sis->ioport;
void __iomem *ioaddr = sis->ioaddr;
+ unsigned long timeout;
u16 status;
int count;
int i;
@@ -1104,21 +1111,45 @@ static int sis_chip_init(struct sis7019 *sis)
while ((inw(io + SIS_AC97_STATUS) & SIS_AC97_STATUS_BUSY) && --count)
udelay(1);
+ /* Command complete, we can let go of the semaphore now.
+ */
+ outl(SIS_AC97_SEMA_RELEASE, io + SIS_AC97_SEMA);
+ if (!count)
+ return -EIO;
+
/* Now that we've finished the reset, find out what's attached.
+ * There are some codec/board combinations that take an extremely
+ * long time to come up. 350+ ms has been observed in the field,
+ * so we'll give them up to 500ms.
*/
- status = inl(io + SIS_AC97_STATUS);
- if (status & SIS_AC97_STATUS_CODEC_READY)
- sis->codecs_present |= SIS_PRIMARY_CODEC_PRESENT;
- if (status & SIS_AC97_STATUS_CODEC2_READY)
- sis->codecs_present |= SIS_SECONDARY_CODEC_PRESENT;
- if (status & SIS_AC97_STATUS_CODEC3_READY)
- sis->codecs_present |= SIS_TERTIARY_CODEC_PRESENT;
-
- /* All done, let go of the semaphore, and check for errors
+ sis->codecs_present = 0;
+ timeout = msecs_to_jiffies(500) + jiffies;
+ while (time_before_eq(jiffies, timeout)) {
+ status = inl(io + SIS_AC97_STATUS);
+ if (status & SIS_AC97_STATUS_CODEC_READY)
+ sis->codecs_present |= SIS_PRIMARY_CODEC_PRESENT;
+ if (status & SIS_AC97_STATUS_CODEC2_READY)
+ sis->codecs_present |= SIS_SECONDARY_CODEC_PRESENT;
+ if (status & SIS_AC97_STATUS_CODEC3_READY)
+ sis->codecs_present |= SIS_TERTIARY_CODEC_PRESENT;
+
+ if (sis->codecs_present == codecs)
+ break;
+
+ msleep(1);
+ }
+
+ /* All done, check for errors.
*/
- outl(SIS_AC97_SEMA_RELEASE, io + SIS_AC97_SEMA);
- if (!sis->codecs_present || !count)
+ if (!sis->codecs_present) {
+ dev_err(&sis->pci->dev, "could not find any codecs\n");
return -EIO;
+ }
+
+ if (sis->codecs_present != codecs) {
+ dev_warn(&sis->pci->dev, "missing codecs, found %0x, expected %0x\n",
+ sis->codecs_present, codecs);
+ }
/* Let the hardware know that the audio driver is alive,
* and enable PCM slots on the AC-link for L/R playback (3 & 4) and
@@ -1225,18 +1256,18 @@ static int sis_resume(struct pci_dev *pci)
pci_restore_state(pci);
if (pci_enable_device(pci) < 0) {
- printk(KERN_ERR "sis7019: unable to re-enable device\n");
+ dev_err(&pci->dev, "unable to re-enable device\n");
goto error;
}
if (sis_chip_init(sis)) {
- printk(KERN_ERR "sis7019: unable to re-init controller\n");
+ dev_err(&pci->dev, "unable to re-init controller\n");
goto error;
}
- if (request_irq(pci->irq, sis_interrupt, IRQF_DISABLED|IRQF_SHARED,
+ if (request_irq(pci->irq, sis_interrupt, IRQF_SHARED,
KBUILD_MODNAME, sis)) {
- printk(KERN_ERR "sis7019: unable to regain IRQ %d\n", pci->irq);
+ dev_err(&pci->dev, "unable to regain IRQ %d\n", pci->irq);
goto error;
}
@@ -1304,8 +1335,7 @@ static int __devinit sis_chip_create(struct snd_card *card,
goto error_out;
if (pci_set_dma_mask(pci, DMA_BIT_MASK(30)) < 0) {
- printk(KERN_ERR "sis7019: architecture does not support "
- "30-bit PCI busmaster DMA");
+ dev_err(&pci->dev, "architecture does not support 30-bit PCI busmaster DMA");
goto error_out_enabled;
}
@@ -1319,20 +1349,20 @@ static int __devinit sis_chip_create(struct snd_card *card,
rc = pci_request_regions(pci, "SiS7019");
if (rc) {
- printk(KERN_ERR "sis7019: unable request regions\n");
+ dev_err(&pci->dev, "unable request regions\n");
goto error_out_enabled;
}
rc = -EIO;
sis->ioaddr = ioremap_nocache(pci_resource_start(pci, 1), 0x4000);
if (!sis->ioaddr) {
- printk(KERN_ERR "sis7019: unable to remap MMIO, aborting\n");
+ dev_err(&pci->dev, "unable to remap MMIO, aborting\n");
goto error_out_cleanup;
}
rc = sis_alloc_suspend(sis);
if (rc < 0) {
- printk(KERN_ERR "sis7019: unable to allocate state storage\n");
+ dev_err(&pci->dev, "unable to allocate state storage\n");
goto error_out_cleanup;
}
@@ -1340,9 +1370,9 @@ static int __devinit sis_chip_create(struct snd_card *card,
if (rc)
goto error_out_cleanup;
- if (request_irq(pci->irq, sis_interrupt, IRQF_DISABLED|IRQF_SHARED,
- KBUILD_MODNAME, sis)) {
- printk(KERN_ERR "unable to allocate irq %d\n", sis->irq);
+ if (request_irq(pci->irq, sis_interrupt, IRQF_SHARED, KBUILD_MODNAME,
+ sis)) {
+ dev_err(&pci->dev, "unable to allocate irq %d\n", sis->irq);
goto error_out_cleanup;
}
@@ -1390,6 +1420,17 @@ static int __devinit snd_sis7019_probe(struct pci_dev *pci,
if (!enable)
goto error_out;
+ /* The user can specify which codecs should be present so that we
+ * can wait for them to show up if they are slow to recover from
+ * the AC97 cold reset. We default to a single codec, the primary.
+ *
+ * We assume that SIS_PRIMARY_*_PRESENT matches bits 0-2.
+ */
+ codecs &= SIS_PRIMARY_CODEC_PRESENT | SIS_SECONDARY_CODEC_PRESENT |
+ SIS_TERTIARY_CODEC_PRESENT;
+ if (!codecs)
+ codecs = SIS_PRIMARY_CODEC_PRESENT;
+
rc = snd_card_create(index, id, THIS_MODULE, sizeof(*sis), &card);
if (rc < 0)
goto error_out;
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-16 21:07:01 +0000