summaryrefslogtreecommitdiffstats
path: root/drivers/sound/ad1848.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/sound/ad1848.c')
-rw-r--r--drivers/sound/ad1848.c113
1 files changed, 52 insertions, 61 deletions
diff --git a/drivers/sound/ad1848.c b/drivers/sound/ad1848.c
index 6fdec35ec..d839ed208 100644
--- a/drivers/sound/ad1848.c
+++ b/drivers/sound/ad1848.c
@@ -23,6 +23,12 @@
*/
/*
* Thomas Sailer : ioctl code reworked (vmalloc/vfree removed)
+ * general sleep/wakeup clean up.
+ * Alan Cox : reformatted. Fixed SMP bugs. Moved to kernel alloc/free
+ * of irqs. Use dev_id.
+ *
+ * Status:
+ * Tested. Believed fully functional.
*/
#include <linux/config.h>
@@ -144,9 +150,9 @@ static void ad1848_tmr_reprogram(int dev);
static int ad_read(ad1848_info * devc, int reg)
{
- unsigned long flags;
- int x;
- int timeout = 900000;
+ unsigned long flags;
+ int x;
+ int timeout = 900000;
while (timeout > 0 && inb(devc->base) == 0x80) /*Are we initializing */
timeout--;
@@ -163,11 +169,10 @@ static int ad_read(ad1848_info * devc, int reg)
static void ad_write(ad1848_info * devc, int reg, int data)
{
- unsigned long flags;
- int timeout = 900000;
+ unsigned long flags;
+ int timeout = 900000;
- while (timeout > 0 &&
- inb(devc->base) == 0x80) /*Are we initializing */
+ while (timeout > 0 && inb(devc->base) == 0x80) /* Are we initializing */
timeout--;
save_flags(flags);
@@ -180,7 +185,7 @@ static void ad_write(ad1848_info * devc, int reg, int data)
static void wait_for_calibration(ad1848_info * devc)
{
- int timeout = 0;
+ int timeout = 0;
/*
* Wait until the auto calibration process has finished.
@@ -1751,7 +1756,11 @@ int ad1848_init(char *name, int io_base, int irq, int dma_playback, int dma_capt
else
devc->audio_flags |= DMA_DUPLEX;
}
-
+
+ portc = (ad1848_port_info *) kmalloc(sizeof(ad1848_port_info), GFP_KERNEL);
+ if(portc==NULL)
+ return -1;
+
if ((my_dev = sound_install_audiodrv(AUDIO_DRIVER_VERSION,
dev_name,
&ad1848_audio_driver,
@@ -1762,12 +1771,11 @@ int ad1848_init(char *name, int io_base, int irq, int dma_playback, int dma_capt
dma_playback,
dma_capture)) < 0)
{
+ kfree(portc);
+ portc=NULL;
return -1;
}
- portc = (ad1848_port_info *) (sound_mem_blocks[sound_nblocks] = vmalloc(sizeof(ad1848_port_info)));
- sound_mem_sizes[sound_nblocks] = sizeof(ad1848_port_info);
- if (sound_nblocks < 1024)
- sound_nblocks++;;
+
audio_devs[my_dev]->portc = portc;
memset((char *) portc, 0, sizeof(*portc));
@@ -1777,23 +1785,21 @@ int ad1848_init(char *name, int io_base, int irq, int dma_playback, int dma_capt
if (irq > 0)
{
- irq2dev[irq] = devc->dev_no = my_dev;
- if (snd_set_irq_handler(devc->irq, adintr,
- devc->name,
- NULL) < 0)
+ devc->dev_no = my_dev;
+ if (request_irq(devc->irq, adintr, 0, devc->name, (void *)my_dev) < 0)
{
- printk(KERN_WARNING "ad1848: IRQ in use\n");
+ printk(KERN_WARNING "ad1848: Unable to allocate IRQ\n");
}
if (devc->model != MD_1848 && devc->model != MD_C930)
{
- int x;
- unsigned char tmp = ad_read(devc, 16);
+ int x;
+ unsigned char tmp = ad_read(devc, 16);
devc->timer_ticks = 0;
ad_write(devc, 21, 0x00); /* Timer MSB */
ad_write(devc, 20, 0x10); /* Timer LSB */
-
+#ifndef __SMP__
ad_write(devc, 16, tmp | 0x40); /* Enable timer */
for (x = 0; x < 100000 && devc->timer_ticks == 0; x++);
ad_write(devc, 16, tmp & ~0x40); /* Disable timer */
@@ -1805,6 +1811,9 @@ int ad1848_init(char *name, int io_base, int irq, int dma_playback, int dma_capt
DDB(printk("Interrupt test OK\n"));
devc->irq_ok = 1;
}
+#else
+ devc->irq_ok=1;
+#endif
}
else
devc->irq_ok = 1; /* Couldn't test. assume it's OK */
@@ -1840,7 +1849,7 @@ int ad1848_init(char *name, int io_base, int irq, int dma_playback, int dma_capt
void ad1848_control(int cmd, int arg)
{
- ad1848_info *devc;
+ ad1848_info *devc;
if (nr_ad1848_devs < 1)
return;
@@ -1850,7 +1859,7 @@ void ad1848_control(int cmd, int arg)
switch (cmd)
{
case AD1848_SET_XTAL: /* Change clock frequency of AD1845 (only ) */
- if (devc->model != MD_1845)
+ if (devc->model != MD_1845)
return;
ad_enter_MCE(devc);
ad_write(devc, 29, (ad_read(devc, 29) & 0x1f) | (arg << 5));
@@ -1859,8 +1868,8 @@ void ad1848_control(int cmd, int arg)
case AD1848_MIXER_REROUTE:
{
- int o = (arg >> 8) & 0xff;
- int n = arg & 0xff;
+ int o = (arg >> 8) & 0xff;
+ int n = arg & 0xff;
if (n == SOUND_MIXER_NONE)
{ /* Just hide this control */
@@ -1906,12 +1915,14 @@ void ad1848_unload(int io_base, int irq, int dma_playback, int dma_capture, int
if (devc != NULL)
{
+ if(audio_devs[dev]->portc!=NULL)
+ kfree(audio_devs[dev]->portc);
release_region(devc->base, 4);
if (!share_dma)
{
if (irq > 0)
- snd_release_irq(devc->irq);
+ free_irq(devc->irq, NULL);
sound_free_dma(audio_devs[dev]->dmap_out->dma);
@@ -1926,35 +1937,15 @@ void ad1848_unload(int io_base, int irq, int dma_playback, int dma_capture, int
void adintr(int irq, void *dev_id, struct pt_regs *dummy)
{
- unsigned char status;
- ad1848_info *devc;
- int dev;
- int alt_stat = 0xff;
- unsigned char c930_stat = 0;
- int cnt = 0;
-
- if (irq < 0 || irq > 15)
- {
- dev = -1;
- }
- else
- dev = irq2dev[irq];
-
- if (dev < 0 || dev >= num_audiodevs)
- {
- for (irq = 0; irq < 17; irq++)
- if (irq2dev[irq] != -1)
- break;
-
- if (irq > 15)
- {
- /* printk("ad1848.c: Bogus interrupt %d\n", irq); */
- return;
- }
- dev = irq2dev[irq];
- devc = (ad1848_info *) audio_devs[dev]->devc;
- } else
- devc = (ad1848_info *) audio_devs[dev]->devc;
+ unsigned char status;
+ ad1848_info *devc;
+ int dev;
+ int alt_stat = 0xff;
+ unsigned char c930_stat = 0;
+ int cnt = 0;
+
+ dev = (int)dev_id;
+ devc = (ad1848_info *) audio_devs[dev]->devc;
interrupt_again: /* Jump back here if int status doesn't reset */
@@ -2542,12 +2533,12 @@ EXPORT_SYMBOL(unload_ms_sound);
#ifdef MODULE
-MODULE_PARM(io, "i");
-MODULE_PARM(irq, "i");
-MODULE_PARM(dma, "i");
-MODULE_PARM(dma2, "i");
-MODULE_PARM(type, "i");
-MODULE_PARM(deskpro_xl, "i");
+MODULE_PARM(io, "i"); /* I/O for a raw AD1848 card */
+MODULE_PARM(irq, "i"); /* IRQ to use */
+MODULE_PARM(dma, "i"); /* First DMA channel */
+MODULE_PARM(dma2, "i"); /* Second DMA channel */
+MODULE_PARM(type, "i"); /* Card type */
+MODULE_PARM(deskpro_xl, "i"); /* Special magic for Deskpro XL boxen */
int io = -1;
int irq = -1;
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-20 02:35:30 +0000