*
* ToDo:
* - Proper shared IRQ handling?
+ * - by default, don't enable legacy game and use PCI game I/O
* - power management? (card can do voice wakeup according to datasheet!!)
*/
struct snd_card_als4000 {
/* most frequent access first */
- unsigned long gcr;
+ unsigned long iobase;
struct pci_dev *pci;
struct snd_sb *chip;
#ifdef SUPPORT_JOYSTICK
MODULE_DEVICE_TABLE(pci, snd_als4000_ids);
-static inline void snd_als4000_gcr_write_addr(unsigned long port, u32 reg, u32 val)
+enum als4k_iobase_t {
+ /* IOx: B == Byte, W = Word, D = DWord */
+ ALS4K_IOD_00_AC97_ACCESS = 0x00,
+ ALS4K_IOW_04_AC97_READ = 0x04,
+ ALS4K_IOB_06_AC97_STATUS = 0x06,
+ ALS4K_IOB_07_IRQSTATUS = 0x07,
+ ALS4K_IOD_08_GCR_DATA = 0x08,
+ ALS4K_IOB_0C_GCR_INDEX = 0x0c,
+ ALS4K_IOB_0E_SB_MPU_IRQ = 0x0e,
+ ALS4K_IOB_10_ADLIB_ADDR0 = 0x10,
+ ALS4K_IOB_11_ADLIB_ADDR1 = 0x11,
+ ALS4K_IOB_12_ADLIB_ADDR2 = 0x12,
+ ALS4K_IOB_13_ADLIB_ADDR3 = 0x13,
+ ALS4K_IOB_14_MIXER_INDEX = 0x14,
+ ALS4K_IOB_15_MIXER_DATA = 0x15,
+ ALS4K_IOB_16_ESP_RST_PORT = 0x16,
+ ALS4K_IOB_16_CR1E_ACK_PORT = 0x16, /* 2nd function */
+ ALS4K_IOB_18_OPL_ADDR0 = 0x18,
+ ALS4K_IOB_19_OPL_ADDR1 = 0x19,
+ ALS4K_IOB_1A_ESP_RD_DATA = 0x1a,
+ ALS4K_IOB_1C_ESP_CMD_DATA = 0x1c,
+ ALS4K_IOB_1C_ESP_WR_STATUS = 0x1c, /* 2nd function */
+ ALS4K_IOB_1E_ESP_RD_STATUS8 = 0x1e,
+ ALS4K_IOB_1F_ESP_RD_STATUS16 = 0x1f,
+ ALS4K_IOB_20_ESP_GAMEPORT_200 = 0x20,
+ ALS4K_IOB_21_ESP_GAMEPORT_201 = 0x21,
+ ALS4K_IOB_30_MIDI_DATA = 0x30,
+ ALS4K_IOB_31_MIDI_STATUS = 0x31,
+ ALS4K_IOB_31_MIDI_COMMAND = 0x31, /* 2nd function */
+};
+
+enum als4k_gcr_t {
+ /* all registers 32bit wide */
+ ALS4K_GCR_8C_MISC_CTRL = 0x8c,
+ ALS4K_GCR_90_TEST_MODE_REG = 0x90,
+ ALS4K_GCR_91_DMA0_ADDR = 0x91,
+ ALS4K_GCR_92_DMA0_MODE_COUNT = 0x92,
+ ALS4K_GCR_93_DMA1_ADDR = 0x93,
+ ALS4K_GCR_94_DMA1_MODE_COUNT = 0x94,
+ ALS4K_GCR_95_DMA3_ADDR = 0x95,
+ ALS4K_GCR_96_DMA3_MODE_COUNT = 0x96,
+ ALS4K_GCR_99_DMA_EMULATION_CTRL = 0x99,
+ ALS4K_GCR_A0_FIFO1_CURRENT_ADDR = 0xa0,
+ ALS4K_GCR_A1_FIFO1_STATUS_BYTECOUNT = 0xa1,
+ ALS4K_GCR_A2_FIFO2_PCIADDR = 0xa2,
+ ALS4K_GCR_A3_FIFO2_COUNT = 0xa3,
+ ALS4K_GCR_A4_FIFO2_CURRENT_ADDR = 0xa4,
+ ALS4K_GCR_A5_FIFO1_STATUS_BYTECOUNT = 0xa5,
+ ALS4K_GCR_A6_PM_CTRL = 0xa6,
+ ALS4K_GCR_A7_PCI_ACCESS_STORAGE = 0xa7,
+ ALS4K_GCR_A8_LEGACY_CFG1 = 0xa8,
+ ALS4K_GCR_A9_LEGACY_CFG2 = 0xa9,
+ ALS4K_GCR_FF_DUMMY_SCRATCH = 0xff,
+};
+
+enum als4k_gcr_8c_t {
+ ALS4K_GCR_8C_IRQ_MASK_CTRL_ENABLE = 0x8000,
+ ALS4K_GCR_8C_CHIP_REV_MASK = 0xf0000
+};
+
+static inline void snd_als4000_gcr_write_addr(unsigned long iobase,
+ enum als4k_gcr_t reg,
+ u32 val)
{
- outb(reg, port+0x0c);
- outl(val, port+0x08);
+ outb(reg, iobase + ALS4K_IOB_0C_GCR_INDEX);
+ outl(val, iobase + ALS4K_IOD_08_GCR_DATA);
}
-static inline void snd_als4000_gcr_write(struct snd_sb *sb, u32 reg, u32 val)
+static inline void snd_als4000_gcr_write(struct snd_sb *sb,
+ enum als4k_gcr_t reg,
+ u32 val)
{
snd_als4000_gcr_write_addr(sb->alt_port, reg, val);
}
-static inline u32 snd_als4000_gcr_read_addr(unsigned long port, u32 reg)
+static inline u32 snd_als4000_gcr_read_addr(unsigned long iobase,
+ enum als4k_gcr_t reg)
{
- outb(reg, port+0x0c);
- return inl(port+0x08);
+ outb(reg, iobase + ALS4K_IOB_0C_GCR_INDEX);
+ return inl(iobase + ALS4K_IOD_08_GCR_DATA);
}
-static inline u32 snd_als4000_gcr_read(struct snd_sb *sb, u32 reg)
+static inline u32 snd_als4000_gcr_read(struct snd_sb *sb, enum als4k_gcr_t reg)
{
return snd_als4000_gcr_read_addr(sb->alt_port, reg);
}
static inline void snd_als4000_set_capture_dma(struct snd_sb *chip,
dma_addr_t addr, unsigned size)
{
- snd_als4000_gcr_write(chip, 0xa2, addr);
- snd_als4000_gcr_write(chip, 0xa3, (size-1));
+ snd_als4000_gcr_write(chip, ALS4K_GCR_A2_FIFO2_PCIADDR, addr);
+ snd_als4000_gcr_write(chip, ALS4K_GCR_A3_FIFO2_COUNT, (size-1));
}
static inline void snd_als4000_set_playback_dma(struct snd_sb *chip,
- dma_addr_t addr, unsigned size)
+ dma_addr_t addr,
+ unsigned size)
{
- snd_als4000_gcr_write(chip, 0x91, addr);
- snd_als4000_gcr_write(chip, 0x92, (size-1)|0x180000);
+ snd_als4000_gcr_write(chip, ALS4K_GCR_91_DMA0_ADDR, addr);
+ snd_als4000_gcr_write(chip, ALS4K_GCR_92_DMA0_MODE_COUNT,
+ (size-1)|0x180000);
}
#define ALS4000_FORMAT_SIGNED (1<<0)
struct snd_sb *chip = snd_pcm_substream_chip(substream);
int result = 0;
+ /* FIXME race condition in here!!!
+ chip->mode non-atomic update gets consistently protected
+ by reg_lock always, _except_ for this place!!
+ Probably need to take reg_lock as outer (or inner??) lock, too.
+ (or serialize both lock operations? probably not, though... - racy?)
+ */
spin_lock(&chip->mixer_lock);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
unsigned int result;
spin_lock(&chip->reg_lock);
- result = snd_als4000_gcr_read(chip, 0xa4) & 0xffff;
+ result = snd_als4000_gcr_read(chip, ALS4K_GCR_A4_FIFO2_CURRENT_ADDR);
+ result &= 0xffff;
spin_unlock(&chip->reg_lock);
return bytes_to_frames( substream->runtime, result );
}
unsigned result;
spin_lock(&chip->reg_lock);
- result = snd_als4000_gcr_read(chip, 0xa0) & 0xffff;
+ result = snd_als4000_gcr_read(chip, ALS4K_GCR_A0_FIFO1_CURRENT_ADDR);
+ result &= 0xffff;
spin_unlock(&chip->reg_lock);
return bytes_to_frames( substream->runtime, result );
}
* return IRQ_HANDLED no matter whether we actually had an IRQ flag or not).
* ALS4000a.PDF writes that while ACKing IRQ in PCI block will *not* ACK
* the IRQ in the SB core, ACKing IRQ in SB block *will* ACK the PCI IRQ
- * register (alt_port + 0x0e). Probably something could be optimized here to
- * query/write one register only...
+ * register (alt_port + ALS4K_IOB_0E_SB_MPU_IRQ). Probably something
+ * could be optimized here to query/write one register only...
* And even if both registers need to be queried, then there's still the
* question of whether it's actually correct to ACK PCI IRQ before reading
* SB IRQ like we do now, since ALS4000a.PDF mentions that PCI IRQ will *clear*
* SB IRQ status.
+ * (hmm, page 38 mentions it the other way around!)
* And do we *really* need the lock here for *reading* SB_DSP4_IRQSTATUS??
* */
static irqreturn_t snd_als4000_interrupt(int irq, void *dev_id)
unsigned sb_status;
/* find out which bit of the ALS4000 produced the interrupt */
- gcr_status = inb(chip->alt_port + 0xe);
+ gcr_status = inb(chip->alt_port + ALS4K_IOB_0E_SB_MPU_IRQ);
if ((gcr_status & 0x80) && (chip->playback_substream)) /* playback */
snd_pcm_period_elapsed(chip->playback_substream);
if ((gcr_status & 0x10) && (chip->rmidi)) /* MPU401 interrupt */
snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
/* release the gcr */
- outb(gcr_status, chip->alt_port + 0xe);
+ outb(gcr_status, chip->alt_port + ALS4K_IOB_0E_SB_MPU_IRQ);
spin_lock(&chip->mixer_lock);
sb_status = snd_sbmixer_read(chip, SB_DSP4_IRQSTATUS);
/******************************************************************/
-static void snd_als4000_set_addr(unsigned long gcr,
- unsigned int sb,
- unsigned int mpu,
- unsigned int opl,
- unsigned int game)
+static void snd_als4000_set_addr(unsigned long iobase,
+ unsigned int sb_io,
+ unsigned int mpu_io,
+ unsigned int opl_io,
+ unsigned int game_io)
{
- u32 confA = 0;
- u32 confB = 0;
+ u32 cfg1 = 0;
+ u32 cfg2 = 0;
- if (mpu > 0)
- confB |= (mpu | 1) << 16;
- if (sb > 0)
- confB |= (sb | 1);
- if (game > 0)
- confA |= (game | 1) << 16;
- if (opl > 0)
- confA |= (opl | 1);
- snd_als4000_gcr_write_addr(gcr, 0xa8, confA);
- snd_als4000_gcr_write_addr(gcr, 0xa9, confB);
+ if (mpu_io > 0)
+ cfg2 |= (mpu_io | 1) << 16;
+ if (sb_io > 0)
+ cfg2 |= (sb_io | 1);
+ if (game_io > 0)
+ cfg1 |= (game_io | 1) << 16;
+ if (opl_io > 0)
+ cfg1 |= (opl_io | 1);
+ snd_als4000_gcr_write_addr(iobase, ALS4K_GCR_A8_LEGACY_CFG1, cfg1);
+ snd_als4000_gcr_write_addr(iobase, ALS4K_GCR_A9_LEGACY_CFG2, cfg2);
}
static void snd_als4000_configure(struct snd_sb *chip)
spin_unlock_irq(&chip->mixer_lock);
spin_lock_irq(&chip->reg_lock);
- /* magic number. Enables interrupts(?) */
- snd_als4000_gcr_write(chip, 0x8c, 0x28000);
- for(i = 0x91; i <= 0x96; ++i)
+ /* enable interrupts */
+ snd_als4000_gcr_write(chip, ALS4K_GCR_8C_MISC_CTRL,
+ ALS4K_GCR_8C_IRQ_MASK_CTRL_ENABLE);
+
+ for (i = ALS4K_GCR_91_DMA0_ADDR; i <= ALS4K_GCR_96_DMA3_MODE_COUNT; ++i)
snd_als4000_gcr_write(chip, i, 0);
- snd_als4000_gcr_write(chip, 0x99, snd_als4000_gcr_read(chip, 0x99));
+ snd_als4000_gcr_write(chip, ALS4K_GCR_99_DMA_EMULATION_CTRL,
+ snd_als4000_gcr_read(chip, ALS4K_GCR_99_DMA_EMULATION_CTRL));
spin_unlock_irq(&chip->reg_lock);
}
gameport_set_port_data(gp, r);
/* Enable legacy joystick port */
- snd_als4000_set_addr(acard->gcr, 0, 0, 0, 1);
+ snd_als4000_set_addr(acard->iobase, 0, 0, 0, 1);
gameport_register_port(acard->gameport);
gameport_unregister_port(acard->gameport);
acard->gameport = NULL;
- snd_als4000_set_addr(acard->gcr, 0, 0, 0, 0); /* disable joystick */
+ /* disable joystick */
+ snd_als4000_set_addr(acard->iobase, 0, 0, 0, 0);
+
release_and_free_resource(r);
}
}
static void snd_card_als4000_free( struct snd_card *card )
{
- struct snd_card_als4000 * acard = (struct snd_card_als4000 *)card->private_data;
+ struct snd_card_als4000 *acard = card->private_data;
/* make sure that interrupts are disabled */
- snd_als4000_gcr_write_addr( acard->gcr, 0x8c, 0);
+ snd_als4000_gcr_write_addr(acard->iobase, ALS4K_GCR_8C_MISC_CTRL, 0);
/* free resources */
snd_als4000_free_gameport(acard);
pci_release_regions(acard->pci);
static int dev;
struct snd_card *card;
struct snd_card_als4000 *acard;
- unsigned long gcr;
+ unsigned long iobase;
struct snd_sb *chip;
struct snd_opl3 *opl3;
unsigned short word;
pci_disable_device(pci);
return err;
}
- gcr = pci_resource_start(pci, 0);
+ iobase = pci_resource_start(pci, 0);
pci_read_config_word(pci, PCI_COMMAND, &word);
pci_write_config_word(pci, PCI_COMMAND, word | PCI_COMMAND_IO);
return -ENOMEM;
}
- acard = (struct snd_card_als4000 *)card->private_data;
+ acard = card->private_data;
acard->pci = pci;
- acard->gcr = gcr;
+ acard->iobase = iobase;
card->private_free = snd_card_als4000_free;
/* disable all legacy ISA stuff */
- snd_als4000_set_addr(acard->gcr, 0, 0, 0, 0);
+ snd_als4000_set_addr(acard->iobase, 0, 0, 0, 0);
if ((err = snd_sbdsp_create(card,
- gcr + 0x10,
+ iobase + ALS4K_IOB_10_ADLIB_ADDR0,
pci->irq,
snd_als4000_interrupt,
-1,
acard->chip = chip;
chip->pci = pci;
- chip->alt_port = gcr;
+ chip->alt_port = iobase;
snd_card_set_dev(card, &pci->dev);
snd_als4000_configure(chip);
card->shortname, chip->alt_port, chip->irq);
if ((err = snd_mpu401_uart_new( card, 0, MPU401_HW_ALS4000,
- gcr+0x30, MPU401_INFO_INTEGRATED,
+ iobase + ALS4K_IOB_30_MIDI_DATA,
+ MPU401_INFO_INTEGRATED,
pci->irq, 0, &chip->rmidi)) < 0) {
- printk(KERN_ERR "als4000: no MPU-401 device at 0x%lx?\n", gcr+0x30);
+ printk(KERN_ERR "als4000: no MPU-401 device at 0x%lx?\n",
+ iobase + ALS4K_IOB_30_MIDI_DATA);
goto out_err;
}
+ /* FIXME: ALS4000 has interesting MPU401 configuration features
+ * at CR 0x1A (pass-thru / UART switching, fast MIDI clock, etc.),
+ * however there doesn't seem to be an ALSA API for this... */
if ((err = snd_als4000_pcm(chip, 0)) < 0) {
goto out_err;
goto out_err;
}
- if (snd_opl3_create(card, gcr+0x10, gcr+0x12,
+ if (snd_opl3_create(card,
+ iobase + ALS4K_IOB_10_ADLIB_ADDR0,
+ iobase + ALS4K_IOB_12_ADLIB_ADDR2,
OPL3_HW_AUTO, 1, &opl3) < 0) {
printk(KERN_ERR "als4000: no OPL device at 0x%lx-0x%lx?\n",
- gcr+0x10, gcr+0x12 );
+ iobase + ALS4K_IOB_10_ADLIB_ADDR0,
+ iobase + ALS4K_IOB_12_ADLIB_ADDR2);
} else {
if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
goto out_err;
#ifdef SUPPORT_JOYSTICK
if (acard->gameport)
- snd_als4000_set_addr(acard->gcr, 0, 0, 0, 1);
+ snd_als4000_set_addr(acard->iobase, 0, 0, 0, 1);
#endif
snd_power_change_state(card, SNDRV_CTL_POWER_D0);
return 0;
}
-#endif
+#endif /* CONFIG_PM */
static struct pci_driver driver = {
projects / platform / kernel / linux-rpi.git / commitdiff