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[ALSA] emu10k1: General cleanup, add new locks, fix alsa bug#3501, kernel bug#9304. 

Signed-off-by: James Courtier-Dutton <James@superbug.co.uk>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
James Courtier-Dutton 2007-11-10 17:55:14 +00:00 committed by Jaroslav Kysela
parent 3839e4f136
commit c94fa4c916
6 changed files with 81 additions and 45 deletions
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2
include/sound/emu10k1.h
View File

@ -1742,6 +1742,8 @@ struct snd_emu10k1 {
spinlock_t reg_lock;
spinlock_t emu_lock;
spinlock_t voice_lock;
spinlock_t spi_lock; /* serialises access to spi port */
spinlock_t i2c_lock; /* serialises access to i2c port */
struct snd_emu10k1_voice voices[NUM_G];
struct snd_emu10k1_voice p16v_voices[4];

15
sound/pci/emu10k1/emu10k1_callback.c
View File

@ -35,9 +35,9 @@ struct best_voice {
/*
* prototypes
*/
static void lookup_voices(struct snd_emux *emu, struct snd_emu10k1 *hw,
static void lookup_voices(struct snd_emux *emux, struct snd_emu10k1 *hw,
struct best_voice *best, int active_only);
static struct snd_emux_voice *get_voice(struct snd_emux *emu,
static struct snd_emux_voice *get_voice(struct snd_emux *emux,
struct snd_emux_port *port);
static int start_voice(struct snd_emux_voice *vp);
static void trigger_voice(struct snd_emux_voice *vp);
@ -45,7 +45,6 @@ static void release_voice(struct snd_emux_voice *vp);
static void update_voice(struct snd_emux_voice *vp, int update);
static void terminate_voice(struct snd_emux_voice *vp);
static void free_voice(struct snd_emux_voice *vp);
static void set_fmmod(struct snd_emu10k1 *hw, struct snd_emux_voice *vp);
static void set_fm2frq2(struct snd_emu10k1 *hw, struct snd_emux_voice *vp);
static void set_filterQ(struct snd_emu10k1 *hw, struct snd_emux_voice *vp);
@ -75,9 +74,9 @@ static struct snd_emux_operators emu10k1_ops = {
};
void
snd_emu10k1_ops_setup(struct snd_emux *emu)
snd_emu10k1_ops_setup(struct snd_emux *emux)
{
emu->ops = emu10k1_ops;
emux->ops = emu10k1_ops;
}
@ -166,7 +165,11 @@ free_voice(struct snd_emux_voice *vp)
struct snd_emu10k1 *hw;
hw = vp->hw;
if (vp->ch >= 0) {
/* FIXME: emu10k1_synth is broken. */
/* This can get called with hw == 0 */
/* Problem apparent on plug, unplug then plug */
/* on the Audigy 2 ZS Notebook. */
if (hw && (vp->ch >= 0)) {
snd_emu10k1_ptr_write(hw, IFATN, vp->ch, 0xff00);
snd_emu10k1_ptr_write(hw, DCYSUSV, vp->ch, 0x807f | DCYSUSV_CHANNELENABLE_MASK);
// snd_emu10k1_ptr_write(hw, DCYSUSV, vp->ch, 0);

6
sound/pci/emu10k1/emu10k1_main.c
View File

@ -259,7 +259,6 @@ static int snd_emu10k1_init(struct snd_emu10k1 *emu, int enable_ir, int resume)
* GPIO7: Unknown
*/
outl(0x76, emu->port + A_IOCFG); /* Windows uses 0x3f76 */
}
if (emu->card_capabilities->i2c_adc) { /* Audigy 2 ZS Notebook with ADC Wolfson WM8775 */
int size, n;
@ -275,7 +274,6 @@ static int snd_emu10k1_init(struct snd_emu10k1 *emu, int enable_ir, int resume)
emu->i2c_capture_volume[n][0]= 0xcf;
emu->i2c_capture_volume[n][1]= 0xcf;
}
}
@ -653,6 +651,8 @@ static int snd_emu10k1_cardbus_init(struct snd_emu10k1 * emu)
value = inl(special_port);
snd_emu10k1_ptr20_write(emu, TINA2_VOLUME, 0, 0xfefefefe); /* Defaults to 0x30303030 */
/* Delay to give time for ADC chip to switch on. It needs 113ms */
msleep(200);
return 0;
}
@ -1717,6 +1717,8 @@ int __devinit snd_emu10k1_create(struct snd_card *card,
emu->card = card;
spin_lock_init(&emu->reg_lock);
spin_lock_init(&emu->emu_lock);
spin_lock_init(&emu->spi_lock);
spin_lock_init(&emu->i2c_lock);
spin_lock_init(&emu->voice_lock);
spin_lock_init(&emu->synth_lock);
spin_lock_init(&emu->memblk_lock);

43
sound/pci/emu10k1/emu10k1_synth.c
View File

@ -30,7 +30,7 @@ MODULE_LICENSE("GPL");
*/
static int snd_emu10k1_synth_new_device(struct snd_seq_device *dev)
{
struct snd_emux *emu;
struct snd_emux *emux;
struct snd_emu10k1 *hw;
struct snd_emu10k1_synth_arg *arg;
unsigned long flags;
@ -46,53 +46,56 @@ static int snd_emu10k1_synth_new_device(struct snd_seq_device *dev)
else if (arg->max_voices > 64)
arg->max_voices = 64;
if (snd_emux_new(&emu) < 0)
if (snd_emux_new(&emux) < 0)
return -ENOMEM;
snd_emu10k1_ops_setup(emu);
emu->hw = hw = arg->hwptr;
emu->max_voices = arg->max_voices;
emu->num_ports = arg->seq_ports;
emu->pitch_shift = -501;
emu->memhdr = hw->memhdr;
emu->midi_ports = arg->seq_ports < 2 ? arg->seq_ports : 2; /* maximum two ports */
emu->midi_devidx = hw->audigy ? 2 : 1; /* audigy has two external midis */
emu->linear_panning = 0;
emu->hwdep_idx = 2; /* FIXED */
snd_emu10k1_ops_setup(emux);
hw = arg->hwptr;
emux->hw = hw;
emux->max_voices = arg->max_voices;
emux->num_ports = arg->seq_ports;
emux->pitch_shift = -501;
emux->memhdr = hw->memhdr;
/* maximum two ports */
emux->midi_ports = arg->seq_ports < 2 ? arg->seq_ports : 2;
/* audigy has two external midis */
emux->midi_devidx = hw->audigy ? 2 : 1;
emux->linear_panning = 0;
emux->hwdep_idx = 2; /* FIXED */
if (snd_emux_register(emu, dev->card, arg->index, "Emu10k1") < 0) {
snd_emux_free(emu);
if (snd_emux_register(emux, dev->card, arg->index, "Emu10k1") < 0) {
snd_emux_free(emux);
return -ENOMEM;
}
spin_lock_irqsave(&hw->voice_lock, flags);
hw->synth = emu;
hw->synth = emux;
hw->get_synth_voice = snd_emu10k1_synth_get_voice;
spin_unlock_irqrestore(&hw->voice_lock, flags);
dev->driver_data = emu;
dev->driver_data = emux;
return 0;
}
static int snd_emu10k1_synth_delete_device(struct snd_seq_device *dev)
{
struct snd_emux *emu;
struct snd_emux *emux;
struct snd_emu10k1 *hw;
unsigned long flags;
if (dev->driver_data == NULL)
return 0; /* not registered actually */
emu = dev->driver_data;
emux = dev->driver_data;
hw = emu->hw;
hw = emux->hw;
spin_lock_irqsave(&hw->voice_lock, flags);
hw->synth = NULL;
hw->get_synth_voice = NULL;
spin_unlock_irqrestore(&hw->voice_lock, flags);
snd_emux_free(emu);
snd_emux_free(emux);
return 0;
}

52
sound/pci/emu10k1/io.c
View File

@ -70,6 +70,11 @@ void snd_emu10k1_ptr_write(struct snd_emu10k1 *emu, unsigned int reg, unsigned i
unsigned long flags;
unsigned int mask;
if (!emu) {
snd_printk(KERN_ERR "ptr_write: emu is null!\n");
dump_stack();
return;
}
mask = emu->audigy ? A_PTR_ADDRESS_MASK : PTR_ADDRESS_MASK;
regptr = ((reg << 16) & mask) | (chn & PTR_CHANNELNUM_MASK);
@ -134,15 +139,23 @@ int snd_emu10k1_spi_write(struct snd_emu10k1 * emu,
unsigned int reset, set;
unsigned int reg, tmp;
int n, result;
int err = 0;
/* This function is not re-entrant, so protect against it. */
spin_lock(&emu->spi_lock);
if (emu->card_capabilities->ca0108_chip)
reg = 0x3c; /* PTR20, reg 0x3c */
else {
/* For other chip types the SPI register
* is currently unknown. */
return 1;
err = 1;
goto spi_write_exit;
}
if (data > 0xffff) {
/* Only 16bit values allowed */
err = 1;
goto spi_write_exit;
}
if (data > 0xffff) /* Only 16bit values allowed */
return 1;
tmp = snd_emu10k1_ptr20_read(emu, reg, 0);
reset = (tmp & ~0x3ffff) | 0x20000; /* Set xxx20000 */
@ -160,11 +173,17 @@ int snd_emu10k1_spi_write(struct snd_emu10k1 * emu,
break;
}
}
if (result) /* Timed out */
return 1;
if (result) {
/* Timed out */
err = 1;
goto spi_write_exit;
}
snd_emu10k1_ptr20_write(emu, reg, 0, reset | data);
tmp = snd_emu10k1_ptr20_read(emu, reg, 0); /* Write post */
return 0;
err = 0;
spi_write_exit:
spin_unlock(&emu->spi_lock);
return err;
}
/* The ADC does not support i2c read, so only write is implemented */
@ -176,15 +195,17 @@ int snd_emu10k1_i2c_write(struct snd_emu10k1 *emu,
int timeout = 0;
int status;
int retry;
int err = 0;
if ((reg > 0x7f) || (value > 0x1ff)) {
snd_printk(KERN_ERR "i2c_write: invalid values.\n");
return -EINVAL;
}
/* This function is not re-entrant, so protect against it. */
spin_lock(&emu->i2c_lock);
tmp = reg << 25 | value << 16;
// snd_printk("I2C-write:reg=0x%x, value=0x%x\n", reg, value);
/* Not sure what this I2C channel controls. */
/* snd_emu10k1_ptr_write(emu, P17V_I2C_0, 0, tmp); */
/* This controls the I2C connected to the WM8775 ADC Codec */
snd_emu10k1_ptr20_write(emu, P17V_I2C_1, 0, tmp);
@ -192,17 +213,14 @@ int snd_emu10k1_i2c_write(struct snd_emu10k1 *emu,
for (retry = 0; retry < 10; retry++) {
/* Send the data to i2c */
//tmp = snd_emu10k1_ptr_read(emu, P17V_I2C_ADDR, 0);
//tmp = tmp & ~(I2C_A_ADC_READ|I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD_MASK);
tmp = 0;
tmp = tmp | (I2C_A_ADC_LAST|I2C_A_ADC_START|I2C_A_ADC_ADD);
snd_emu10k1_ptr20_write(emu, P17V_I2C_ADDR, 0, tmp);
/* Wait till the transaction ends */
while (1) {
udelay(10);
mdelay(1);
status = snd_emu10k1_ptr20_read(emu, P17V_I2C_ADDR, 0);
// snd_printk("I2C:status=0x%x\n", status);
timeout++;
if ((status & I2C_A_ADC_START) == 0)
break;
@ -219,10 +237,14 @@ int snd_emu10k1_i2c_write(struct snd_emu10k1 *emu,
if (retry == 10) {
snd_printk(KERN_ERR "Writing to ADC failed!\n");
return -EINVAL;
snd_printk(KERN_ERR "status=0x%x, reg=%d, value=%d\n",
status, reg, value);
/* dump_stack(); */
err = -EINVAL;
}
return 0;
spin_unlock(&emu->i2c_lock);
return err;
}
int snd_emu1010_fpga_write(struct snd_emu10k1 * emu, u32 reg, u32 value)

8
sound/pci/emu10k1/irq.c
View File

@ -34,9 +34,10 @@ irqreturn_t snd_emu10k1_interrupt(int irq, void *dev_id)
struct snd_emu10k1 *emu = dev_id;
unsigned int status, status2, orig_status, orig_status2;
int handled = 0;
int timeout = 0;
while ((status = inl(emu->port + IPR)) != 0) {
//snd_printk(KERN_INFO "emu10k1 irq - status = 0x%x\n", status);
while (((status = inl(emu->port + IPR)) != 0) && (timeout < 1000)) {
timeout++;
orig_status = status;
handled = 1;
if ((status & 0xffffffff) == 0xffffffff) {
@ -200,5 +201,8 @@ irqreturn_t snd_emu10k1_interrupt(int irq, void *dev_id)
}
outl(orig_status, emu->port + IPR); /* ack all */
}
if (timeout == 1000)
snd_printk(KERN_INFO "emu10k1 irq routine failure\n");
return IRQ_RETVAL(handled);
}