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[ALSA] emu10k1 - Add PM support

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Modules: EMU10K1/EMU10K2 driver

Add PM support to emu10k1 driver.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai
2005-11-17 16:14:10 +01:00
committed by Jaroslav Kysela
parent fe8be10786
commit 09668b441d
6 changed files with 491 additions and 170 deletions
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121
sound/pci/emu10k1/emufx.c
View File

@@ -1071,9 +1071,6 @@ static int __devinit _snd_emu10k1_audigy_init_efx(struct snd_emu10k1 *emu)
u32 *gpr_map;
mm_segment_t seg;
spin_lock_init(&emu->fx8010.irq_lock);
INIT_LIST_HEAD(&emu->fx8010.gpr_ctl);
if ((icode = kzalloc(sizeof(*icode), GFP_KERNEL)) == NULL ||
(icode->gpr_map = (u_int32_t __user *)
kcalloc(512 + 256 + 256 + 2 * 1024, sizeof(u_int32_t),
@@ -1541,9 +1538,6 @@ static int __devinit _snd_emu10k1_init_efx(struct snd_emu10k1 *emu)
u32 *gpr_map;
mm_segment_t seg;
spin_lock_init(&emu->fx8010.irq_lock);
INIT_LIST_HEAD(&emu->fx8010.gpr_ctl);
if ((icode = kzalloc(sizeof(*icode), GFP_KERNEL)) == NULL)
return -ENOMEM;
if ((icode->gpr_map = (u_int32_t __user *)
@@ -2102,6 +2096,8 @@ static int __devinit _snd_emu10k1_init_efx(struct snd_emu10k1 *emu)
int __devinit snd_emu10k1_init_efx(struct snd_emu10k1 *emu)
{
spin_lock_init(&emu->fx8010.irq_lock);
INIT_LIST_HEAD(&emu->fx8010.gpr_ctl);
if (emu->audigy)
return _snd_emu10k1_audigy_init_efx(emu);
else
@@ -2171,7 +2167,7 @@ int snd_emu10k1_fx8010_tram_setup(struct snd_emu10k1 *emu, u32 size)
snd_emu10k1_ptr_write(emu, TCBS, 0, size_reg);
spin_lock_irq(&emu->emu_lock);
outl(inl(emu->port + HCFG) & ~HCFG_LOCKTANKCACHE_MASK, emu->port + HCFG);
spin_unlock_irq(&emu->emu_lock);
spin_unlock_irq(&emu->emu_lock);
}
return 0;
@@ -2387,3 +2383,114 @@ int __devinit snd_emu10k1_fx8010_new(struct snd_emu10k1 *emu, int device, struct
*rhwdep = hw;
return 0;
}
#ifdef CONFIG_PM
int __devinit snd_emu10k1_efx_alloc_pm_buffer(struct snd_emu10k1 *emu)
{
int len;
len = emu->audigy ? 0x200 : 0x100;
emu->saved_gpr = kmalloc(len * 4, GFP_KERNEL);
if (! emu->saved_gpr)
return -ENOMEM;
len = emu->audigy ? 0x100 : 0xa0;
emu->tram_val_saved = kmalloc(len * 4, GFP_KERNEL);
emu->tram_addr_saved = kmalloc(len * 4, GFP_KERNEL);
if (! emu->tram_val_saved || ! emu->tram_addr_saved)
return -ENOMEM;
len = emu->audigy ? 2 * 1024 : 2 * 512;
emu->saved_icode = vmalloc(len * 4);
if (! emu->saved_icode)
return -ENOMEM;
return 0;
}
void snd_emu10k1_efx_free_pm_buffer(struct snd_emu10k1 *emu)
{
kfree(emu->saved_gpr);
kfree(emu->tram_val_saved);
kfree(emu->tram_addr_saved);
vfree(emu->saved_icode);
}
/*
* save/restore GPR, TRAM and codes
*/
void snd_emu10k1_efx_suspend(struct snd_emu10k1 *emu)
{
int i, len;
len = emu->audigy ? 0x200 : 0x100;
for (i = 0; i < len; i++)
emu->saved_gpr[i] = snd_emu10k1_ptr_read(emu, emu->gpr_base + i, 0);
len = emu->audigy ? 0x100 : 0xa0;
for (i = 0; i < len; i++) {
emu->tram_val_saved[i] = snd_emu10k1_ptr_read(emu, TANKMEMDATAREGBASE + i, 0);
emu->tram_addr_saved[i] = snd_emu10k1_ptr_read(emu, TANKMEMADDRREGBASE + i, 0);
if (emu->audigy) {
emu->tram_addr_saved[i] >>= 12;
emu->tram_addr_saved[i] |=
snd_emu10k1_ptr_read(emu, A_TANKMEMCTLREGBASE + i, 0) << 20;
}
}
len = emu->audigy ? 2 * 1024 : 2 * 512;
for (i = 0; i < len; i++)
emu->saved_icode[i] = snd_emu10k1_efx_read(emu, i);
}
void snd_emu10k1_efx_resume(struct snd_emu10k1 *emu)
{
int i, len;
/* set up TRAM */
if (emu->fx8010.etram_pages.bytes > 0) {
unsigned size, size_reg = 0;
size = emu->fx8010.etram_pages.bytes / 2;
size = (size - 1) >> 13;
while (size) {
size >>= 1;
size_reg++;
}
outl(HCFG_LOCKTANKCACHE_MASK | inl(emu->port + HCFG), emu->port + HCFG);
snd_emu10k1_ptr_write(emu, TCB, 0, emu->fx8010.etram_pages.addr);
snd_emu10k1_ptr_write(emu, TCBS, 0, size_reg);
outl(inl(emu->port + HCFG) & ~HCFG_LOCKTANKCACHE_MASK, emu->port + HCFG);
}
if (emu->audigy)
snd_emu10k1_ptr_write(emu, A_DBG, 0, emu->fx8010.dbg | A_DBG_SINGLE_STEP);
else
snd_emu10k1_ptr_write(emu, DBG, 0, emu->fx8010.dbg | EMU10K1_DBG_SINGLE_STEP);
len = emu->audigy ? 0x200 : 0x100;
for (i = 0; i < len; i++)
snd_emu10k1_ptr_write(emu, emu->gpr_base + i, 0, emu->saved_gpr[i]);
len = emu->audigy ? 0x100 : 0xa0;
for (i = 0; i < len; i++) {
snd_emu10k1_ptr_write(emu, TANKMEMDATAREGBASE + i, 0,
emu->tram_val_saved[i]);
if (! emu->audigy)
snd_emu10k1_ptr_write(emu, TANKMEMADDRREGBASE + i, 0,
emu->tram_addr_saved[i]);
else {
snd_emu10k1_ptr_write(emu, TANKMEMADDRREGBASE + i, 0,
emu->tram_addr_saved[i] << 12);
snd_emu10k1_ptr_write(emu, TANKMEMADDRREGBASE + i, 0,
emu->tram_addr_saved[i] >> 20);
}
}
len = emu->audigy ? 2 * 1024 : 2 * 512;
for (i = 0; i < len; i++)
snd_emu10k1_efx_write(emu, i, emu->saved_icode[i]);
/* start FX processor when the DSP code is updated */
if (emu->audigy)
snd_emu10k1_ptr_write(emu, A_DBG, 0, emu->fx8010.dbg);
else
snd_emu10k1_ptr_write(emu, DBG, 0, emu->fx8010.dbg);
}
#endif