ALSA: ALS4000 driver work, step 2
- more register naming work - finally figured out that weird CR register stuff (and did I mention that I hate _really_ undecipherable open-coded values?) - fix handling of IRQ sharing in interrupt handler (hopefully properly, otherwise I'd be grateful to hear your pedantic comments ;) - add handy SPECS_PAGE references wherever useful - comments, cleanup - add me as module author Signed-off-by: Andreas Mohr <andi@lisas.de> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Andreas Mohr
Jaroslav Kysela
parent
e01bf5091f
commit
cb780cdd85
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@ -240,11 +240,15 @@ struct snd_sb {
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#define SB_DT019X_CAP_MAIN 0x07
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#define SB_ALS4000_MONO_IO_CTRL 0x4b
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#define SB_ALS4000_OUT_MIXER_CTRL_2 0x4c
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#define SB_ALS4000_MIC_IN_GAIN 0x4d
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#define SB_ALS4000_ANALOG_REFRNC_VOLT_CTRL 0x4e
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#define SB_ALS4000_FMDAC 0x4f
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#define SB_ALS4000_3D_SND_FX 0x50
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#define SB_ALS4000_3D_TIME_DELAY 0x51
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#define SB_ALS4000_3D_AUTO_MUTE 0x52
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#define SB_ALS4000_ANALOG_BLOCK_CTRL 0x53
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#define SB_ALS4000_3D_DELAYLINE_PATTERN 0x54
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#define SB_ALS4000_QSOUND 0xdb
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/* IRQ setting bitmap */
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@ -257,6 +261,7 @@ struct snd_sb {
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#define SB_IRQTYPE_8BIT 0x01
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#define SB_IRQTYPE_16BIT 0x02
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#define SB_IRQTYPE_MPUIN 0x04
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#define ALS4K_IRQTYPE_CR1E_DMA 0x20
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/* DMA setting bitmap */
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#define SB_DMASETUP_DMA0 0x01
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@ -2,7 +2,7 @@
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* card-als4000.c - driver for Avance Logic ALS4000 based soundcards.
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* Copyright (C) 2000 by Bart Hartgers <bart@etpmod.phys.tue.nl>,
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* Jaroslav Kysela <perex@perex.cz>
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* Copyright (C) 2002 by Andreas Mohr <hw7oshyuv3001@sneakemail.com>
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* Copyright (C) 2002, 2008 by Andreas Mohr <hw7oshyuv3001@sneakemail.com>
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*
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* Framework borrowed from Massimo Piccioni's card-als100.c.
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*
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@ -27,8 +27,10 @@
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* bought an ALS4000 based soundcard, I was forced to base this driver
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* on reverse engineering.
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*
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* Note: this is no longer true. Pretty verbose chip docu (ALS4000a.PDF)
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* can be found on the ALSA web site.
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* Note: this is no longer true (thank you!):
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* pretty verbose chip docu (ALS4000a.PDF) can be found on the ALSA web site.
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* Page numbers stated anywhere below with the "SPECS_PAGE:" tag
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* refer to: ALS4000a.PDF specs Ver 1.0, May 28th, 1998.
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*
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* The ALS4000 seems to be the PCI-cousin of the ALS100. It contains an
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* ALS100-like SB DSP/mixer, an OPL3 synth, a MPU401 and a gameport
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@ -59,7 +61,6 @@
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* - value -> some port 0x0c0d
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*
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* ToDo:
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* - Proper shared IRQ handling?
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* - by default, don't enable legacy game and use PCI game I/O
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* - power management? (card can do voice wakeup according to datasheet!!)
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*/
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@ -79,7 +80,7 @@
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#include <sound/sb.h>
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#include <sound/initval.h>
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MODULE_AUTHOR("Bart Hartgers <bart@etpmod.phys.tue.nl>");
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MODULE_AUTHOR("Bart Hartgers <bart@etpmod.phys.tue.nl>, Andreas Mohr");
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MODULE_DESCRIPTION("Avance Logic ALS4000");
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MODULE_LICENSE("GPL");
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MODULE_SUPPORTED_DEVICE("{{Avance Logic,ALS4000}}");
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@ -124,22 +125,22 @@ static struct pci_device_id snd_als4000_ids[] = {
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MODULE_DEVICE_TABLE(pci, snd_als4000_ids);
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enum als4k_iobase_t {
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/* IOx: B == Byte, W = Word, D = DWord */
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/* IOx: B == Byte, W = Word, D = DWord; SPECS_PAGE: 37 */
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ALS4K_IOD_00_AC97_ACCESS = 0x00,
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ALS4K_IOW_04_AC97_READ = 0x04,
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ALS4K_IOB_06_AC97_STATUS = 0x06,
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ALS4K_IOB_07_IRQSTATUS = 0x07,
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ALS4K_IOD_08_GCR_DATA = 0x08,
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ALS4K_IOB_0C_GCR_INDEX = 0x0c,
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ALS4K_IOB_0E_SB_MPU_IRQ = 0x0e,
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ALS4K_IOB_0E_IRQTYPE_SB_CR1E_MPU = 0x0e,
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ALS4K_IOB_10_ADLIB_ADDR0 = 0x10,
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ALS4K_IOB_11_ADLIB_ADDR1 = 0x11,
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ALS4K_IOB_12_ADLIB_ADDR2 = 0x12,
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ALS4K_IOB_13_ADLIB_ADDR3 = 0x13,
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ALS4K_IOB_14_MIXER_INDEX = 0x14,
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ALS4K_IOB_15_MIXER_DATA = 0x15,
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ALS4K_IOB_16_ESP_RST_PORT = 0x16,
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ALS4K_IOB_16_CR1E_ACK_PORT = 0x16, /* 2nd function */
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ALS4K_IOB_16_ESP_RESET = 0x16,
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ALS4K_IOB_16_ACK_FOR_CR1E = 0x16, /* 2nd function */
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ALS4K_IOB_18_OPL_ADDR0 = 0x18,
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ALS4K_IOB_19_OPL_ADDR1 = 0x19,
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ALS4K_IOB_1A_ESP_RD_DATA = 0x1a,
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@ -154,62 +155,137 @@ enum als4k_iobase_t {
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ALS4K_IOB_31_MIDI_COMMAND = 0x31, /* 2nd function */
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};
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enum als4k_gcr_t {
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/* all registers 32bit wide */
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ALS4K_GCR_8C_MISC_CTRL = 0x8c,
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ALS4K_GCR_90_TEST_MODE_REG = 0x90,
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ALS4K_GCR_91_DMA0_ADDR = 0x91,
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ALS4K_GCR_92_DMA0_MODE_COUNT = 0x92,
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ALS4K_GCR_93_DMA1_ADDR = 0x93,
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ALS4K_GCR_94_DMA1_MODE_COUNT = 0x94,
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ALS4K_GCR_95_DMA3_ADDR = 0x95,
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ALS4K_GCR_96_DMA3_MODE_COUNT = 0x96,
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ALS4K_GCR_99_DMA_EMULATION_CTRL = 0x99,
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ALS4K_GCR_A0_FIFO1_CURRENT_ADDR = 0xa0,
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ALS4K_GCR_A1_FIFO1_STATUS_BYTECOUNT = 0xa1,
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ALS4K_GCR_A2_FIFO2_PCIADDR = 0xa2,
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ALS4K_GCR_A3_FIFO2_COUNT = 0xa3,
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ALS4K_GCR_A4_FIFO2_CURRENT_ADDR = 0xa4,
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ALS4K_GCR_A5_FIFO1_STATUS_BYTECOUNT = 0xa5,
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ALS4K_GCR_A6_PM_CTRL = 0xa6,
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ALS4K_GCR_A7_PCI_ACCESS_STORAGE = 0xa7,
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ALS4K_GCR_A8_LEGACY_CFG1 = 0xa8,
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ALS4K_GCR_A9_LEGACY_CFG2 = 0xa9,
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ALS4K_GCR_FF_DUMMY_SCRATCH = 0xff,
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enum als4k_iobase_0e_t {
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ALS4K_IOB_0E_MPU_IRQ = 0x10,
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ALS4K_IOB_0E_CR1E_IRQ = 0x40,
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ALS4K_IOB_0E_SB_DMA_IRQ = 0x80,
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};
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enum als4k_gcr_8c_t {
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ALS4K_GCR_8C_IRQ_MASK_CTRL_ENABLE = 0x8000,
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ALS4K_GCR_8C_CHIP_REV_MASK = 0xf0000
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enum als4k_gcr_t { /* all registers 32bit wide; SPECS_PAGE: 38 to 42 */
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ALS4K_GCR8C_MISC_CTRL = 0x8c,
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ALS4K_GCR90_TEST_MODE_REG = 0x90,
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ALS4K_GCR91_DMA0_ADDR = 0x91,
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ALS4K_GCR92_DMA0_MODE_COUNT = 0x92,
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ALS4K_GCR93_DMA1_ADDR = 0x93,
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ALS4K_GCR94_DMA1_MODE_COUNT = 0x94,
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ALS4K_GCR95_DMA3_ADDR = 0x95,
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ALS4K_GCR96_DMA3_MODE_COUNT = 0x96,
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ALS4K_GCR99_DMA_EMULATION_CTRL = 0x99,
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ALS4K_GCRA0_FIFO1_CURRENT_ADDR = 0xa0,
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ALS4K_GCRA1_FIFO1_STATUS_BYTECOUNT = 0xa1,
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ALS4K_GCRA2_FIFO2_PCIADDR = 0xa2,
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ALS4K_GCRA3_FIFO2_COUNT = 0xa3,
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ALS4K_GCRA4_FIFO2_CURRENT_ADDR = 0xa4,
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ALS4K_GCRA5_FIFO1_STATUS_BYTECOUNT = 0xa5,
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ALS4K_GCRA6_PM_CTRL = 0xa6,
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ALS4K_GCRA7_PCI_ACCESS_STORAGE = 0xa7,
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ALS4K_GCRA8_LEGACY_CFG1 = 0xa8,
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ALS4K_GCRA9_LEGACY_CFG2 = 0xa9,
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ALS4K_GCRFF_DUMMY_SCRATCH = 0xff,
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};
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static inline void snd_als4000_gcr_write_addr(unsigned long iobase,
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enum als4k_gcr8c_t {
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ALS4K_GCR8C_IRQ_MASK_CTRL_ENABLE = 0x8000,
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ALS4K_GCR8C_CHIP_REV_MASK = 0xf0000
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};
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static inline void snd_als4k_iobase_writeb(unsigned long iobase,
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enum als4k_iobase_t reg,
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u8 val)
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{
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outb(val, iobase + reg);
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}
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static inline void snd_als4k_iobase_writel(unsigned long iobase,
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enum als4k_iobase_t reg,
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u32 val)
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{
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outl(val, iobase + reg);
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}
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static inline u8 snd_als4k_iobase_readb(unsigned long iobase,
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enum als4k_iobase_t reg)
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{
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return inb(iobase + reg);
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}
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static inline u32 snd_als4k_iobase_readl(unsigned long iobase,
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enum als4k_iobase_t reg)
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{
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return inl(iobase + reg);
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}
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static inline void snd_als4k_gcr_write_addr(unsigned long iobase,
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enum als4k_gcr_t reg,
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u32 val)
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{
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outb(reg, iobase + ALS4K_IOB_0C_GCR_INDEX);
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outl(val, iobase + ALS4K_IOD_08_GCR_DATA);
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snd_als4k_iobase_writeb(iobase, ALS4K_IOB_0C_GCR_INDEX, reg);
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snd_als4k_iobase_writel(iobase, ALS4K_IOD_08_GCR_DATA, val);
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}
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static inline void snd_als4000_gcr_write(struct snd_sb *sb,
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static inline void snd_als4k_gcr_write(struct snd_sb *sb,
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enum als4k_gcr_t reg,
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u32 val)
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{
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snd_als4000_gcr_write_addr(sb->alt_port, reg, val);
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snd_als4k_gcr_write_addr(sb->alt_port, reg, val);
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}
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static inline u32 snd_als4000_gcr_read_addr(unsigned long iobase,
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static inline u32 snd_als4k_gcr_read_addr(unsigned long iobase,
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enum als4k_gcr_t reg)
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{
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outb(reg, iobase + ALS4K_IOB_0C_GCR_INDEX);
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return inl(iobase + ALS4K_IOD_08_GCR_DATA);
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/* SPECS_PAGE: 37/38 */
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snd_als4k_iobase_writeb(iobase, ALS4K_IOB_0C_GCR_INDEX, reg);
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return snd_als4k_iobase_readl(iobase, ALS4K_IOD_08_GCR_DATA);
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}
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static inline u32 snd_als4000_gcr_read(struct snd_sb *sb, enum als4k_gcr_t reg)
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static inline u32 snd_als4k_gcr_read(struct snd_sb *sb, enum als4k_gcr_t reg)
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{
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return snd_als4000_gcr_read_addr(sb->alt_port, reg);
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return snd_als4k_gcr_read_addr(sb->alt_port, reg);
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}
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enum als4k_cr_t { /* all registers 8bit wide; SPECS_PAGE: 20 to 23 */
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ALS4K_CR0_SB_CONFIG = 0x00,
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ALS4K_CR2_MISC_CONTROL = 0x02,
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ALS4K_CR3_CONFIGURATION = 0x03,
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ALS4K_CR17_FIFO_STATUS = 0x17,
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ALS4K_CR18_ESP_MAJOR_VERSION = 0x18,
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ALS4K_CR19_ESP_MINOR_VERSION = 0x19,
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ALS4K_CR1A_MPU401_UART_MODE_CONTROL = 0x1a,
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ALS4K_CR1C_FIFO2_BLOCK_LENGTH_LO = 0x1c,
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ALS4K_CR1D_FIFO2_BLOCK_LENGTH_HI = 0x1d,
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ALS4K_CR1E_FIFO2_CONTROL = 0x1e, /* secondary PCM FIFO (recording) */
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ALS4K_CR3A_MISC_CONTROL = 0x3a,
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ALS4K_CR3B_CRC32_BYTE0 = 0x3b, /* for testing, activate via CR3A */
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ALS4K_CR3C_CRC32_BYTE1 = 0x3c,
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ALS4K_CR3D_CRC32_BYTE2 = 0x3d,
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ALS4K_CR3E_CRC32_BYTE3 = 0x3e,
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};
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enum als4k_cr0_t {
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ALS4K_CR0_DMA_CONTIN_MODE_CTRL = 0x02, /* IRQ/FIFO controlled for 0/1 */
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ALS4K_CR0_DMA_90H_MODE_CTRL = 0x04, /* IRQ/FIFO controlled for 0/1 */
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ALS4K_CR0_MX80_81_REG_WRITE_ENABLE = 0x80,
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};
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static inline void snd_als4_cr_write(struct snd_sb *chip,
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enum als4k_cr_t reg,
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u8 data)
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{
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/* Control Register is reg | 0xc0 (bit 7, 6 set) on sbmixer_index
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* NOTE: assumes chip->mixer_lock to be locked externally already!
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* SPECS_PAGE: 6 */
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snd_sbmixer_write(chip, reg | 0xc0, data);
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}
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static inline u8 snd_als4_cr_read(struct snd_sb *chip,
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enum als4k_cr_t reg)
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{
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/* NOTE: assumes chip->mixer_lock to be locked externally already! */
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return snd_sbmixer_read(chip, reg | 0xc0);
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}
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static void snd_als4000_set_rate(struct snd_sb *chip, unsigned int rate)
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{
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if (!(chip->mode & SB_RATE_LOCK)) {
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@ -222,16 +298,18 @@ static void snd_als4000_set_rate(struct snd_sb *chip, unsigned int rate)
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static inline void snd_als4000_set_capture_dma(struct snd_sb *chip,
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dma_addr_t addr, unsigned size)
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{
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snd_als4000_gcr_write(chip, ALS4K_GCR_A2_FIFO2_PCIADDR, addr);
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snd_als4000_gcr_write(chip, ALS4K_GCR_A3_FIFO2_COUNT, (size-1));
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/* SPECS_PAGE: 40 */
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snd_als4k_gcr_write(chip, ALS4K_GCRA2_FIFO2_PCIADDR, addr);
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snd_als4k_gcr_write(chip, ALS4K_GCRA3_FIFO2_COUNT, (size-1));
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}
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static inline void snd_als4000_set_playback_dma(struct snd_sb *chip,
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dma_addr_t addr,
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unsigned size)
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{
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snd_als4000_gcr_write(chip, ALS4K_GCR_91_DMA0_ADDR, addr);
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snd_als4000_gcr_write(chip, ALS4K_GCR_92_DMA0_MODE_COUNT,
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/* SPECS_PAGE: 38 */
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snd_als4k_gcr_write(chip, ALS4K_GCR91_DMA0_ADDR, addr);
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snd_als4k_gcr_write(chip, ALS4K_GCR92_DMA0_MODE_COUNT,
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(size-1)|0x180000);
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}
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@ -316,7 +394,7 @@ static int snd_als4000_capture_prepare(struct snd_pcm_substream *substream)
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count = snd_pcm_lib_period_bytes(substream);
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if (chip->capture_format & ALS4000_FORMAT_16BIT)
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count >>=1;
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count >>= 1;
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count--;
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spin_lock_irq(&chip->reg_lock);
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@ -324,8 +402,8 @@ static int snd_als4000_capture_prepare(struct snd_pcm_substream *substream)
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snd_als4000_set_capture_dma(chip, runtime->dma_addr, size);
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spin_unlock_irq(&chip->reg_lock);
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spin_lock_irq(&chip->mixer_lock);
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snd_sbmixer_write(chip, 0xdc, count);
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snd_sbmixer_write(chip, 0xdd, count>>8);
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snd_als4_cr_write(chip, ALS4K_CR1C_FIFO2_BLOCK_LENGTH_LO, count & 0xff);
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snd_als4_cr_write(chip, ALS4K_CR1D_FIFO2_BLOCK_LENGTH_HI, count >> 8);
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spin_unlock_irq(&chip->mixer_lock);
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return 0;
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}
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@ -343,7 +421,7 @@ static int snd_als4000_playback_prepare(struct snd_pcm_substream *substream)
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count = snd_pcm_lib_period_bytes(substream);
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if (chip->playback_format & ALS4000_FORMAT_16BIT)
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count >>=1;
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count >>= 1;
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count--;
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/* FIXME: from second playback on, there's a lot more clicks and pops
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@ -360,8 +438,8 @@ static int snd_als4000_playback_prepare(struct snd_pcm_substream *substream)
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/* snd_sbdsp_command(chip, SB_DSP_SPEAKER_ON); */
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snd_sbdsp_command(chip, playback_cmd(chip).dsp_cmd);
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snd_sbdsp_command(chip, playback_cmd(chip).format);
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snd_sbdsp_command(chip, count);
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snd_sbdsp_command(chip, count>>8);
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snd_sbdsp_command(chip, count & 0xff);
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snd_sbdsp_command(chip, count >> 8);
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snd_sbdsp_command(chip, playback_cmd(chip).dma_off);
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spin_unlock_irq(&chip->reg_lock);
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@ -384,12 +462,14 @@ static int snd_als4000_capture_trigger(struct snd_pcm_substream *substream, int
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case SNDRV_PCM_TRIGGER_START:
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case SNDRV_PCM_TRIGGER_RESUME:
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chip->mode |= SB_RATE_LOCK_CAPTURE;
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snd_sbmixer_write(chip, 0xde, capture_cmd(chip));
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snd_als4_cr_write(chip, ALS4K_CR1E_FIFO2_CONTROL,
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capture_cmd(chip));
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break;
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case SNDRV_PCM_TRIGGER_STOP:
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case SNDRV_PCM_TRIGGER_SUSPEND:
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chip->mode &= ~SB_RATE_LOCK_CAPTURE;
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snd_sbmixer_write(chip, 0xde, 0);
|
||||
snd_als4_cr_write(chip, ALS4K_CR1E_FIFO2_CONTROL,
|
||||
capture_cmd(chip));
|
||||
break;
|
||||
default:
|
||||
result = -EINVAL;
|
||||
|
|
@ -430,9 +510,9 @@ static snd_pcm_uframes_t snd_als4000_capture_pointer(struct snd_pcm_substream *s
|
|||
unsigned int result;
|
||||
|
||||
spin_lock(&chip->reg_lock);
|
||||
result = snd_als4000_gcr_read(chip, ALS4K_GCR_A4_FIFO2_CURRENT_ADDR);
|
||||
result &= 0xffff;
|
||||
result = snd_als4k_gcr_read(chip, ALS4K_GCRA4_FIFO2_CURRENT_ADDR);
|
||||
spin_unlock(&chip->reg_lock);
|
||||
result &= 0xffff;
|
||||
return bytes_to_frames( substream->runtime, result );
|
||||
}
|
||||
|
||||
|
|
@ -442,9 +522,9 @@ static snd_pcm_uframes_t snd_als4000_playback_pointer(struct snd_pcm_substream *
|
|||
unsigned result;
|
||||
|
||||
spin_lock(&chip->reg_lock);
|
||||
result = snd_als4000_gcr_read(chip, ALS4K_GCR_A0_FIFO1_CURRENT_ADDR);
|
||||
result &= 0xffff;
|
||||
result = snd_als4k_gcr_read(chip, ALS4K_GCRA0_FIFO1_CURRENT_ADDR);
|
||||
spin_unlock(&chip->reg_lock);
|
||||
result &= 0xffff;
|
||||
return bytes_to_frames( substream->runtime, result );
|
||||
}
|
||||
|
||||
|
|
@ -452,46 +532,63 @@ static snd_pcm_uframes_t snd_als4000_playback_pointer(struct snd_pcm_substream *
|
|||
* 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 + ALS4K_IOB_0E_SB_MPU_IRQ). Probably something
|
||||
* register (alt_port + ALS4K_IOB_0E_IRQTYPE_SB_CR1E_MPU). 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!)
|
||||
* (hmm, SPECS_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)
|
||||
{
|
||||
struct snd_sb *chip = dev_id;
|
||||
unsigned gcr_status;
|
||||
unsigned sb_status;
|
||||
unsigned pci_irqstatus;
|
||||
unsigned sb_irqstatus;
|
||||
|
||||
/* find out which bit of the ALS4000 produced the interrupt */
|
||||
gcr_status = inb(chip->alt_port + ALS4K_IOB_0E_SB_MPU_IRQ);
|
||||
|
||||
if ((gcr_status & 0x80) && (chip->playback_substream)) /* playback */
|
||||
/* find out which bit of the ALS4000 PCI block produced the interrupt,
|
||||
SPECS_PAGE: 38, 5 */
|
||||
pci_irqstatus = snd_als4k_iobase_readb(chip->alt_port,
|
||||
ALS4K_IOB_0E_IRQTYPE_SB_CR1E_MPU);
|
||||
if ((pci_irqstatus & ALS4K_IOB_0E_SB_DMA_IRQ)
|
||||
&& (chip->playback_substream)) /* playback */
|
||||
snd_pcm_period_elapsed(chip->playback_substream);
|
||||
if ((gcr_status & 0x40) && (chip->capture_substream)) /* capturing */
|
||||
if ((pci_irqstatus & ALS4K_IOB_0E_CR1E_IRQ)
|
||||
&& (chip->capture_substream)) /* capturing */
|
||||
snd_pcm_period_elapsed(chip->capture_substream);
|
||||
if ((gcr_status & 0x10) && (chip->rmidi)) /* MPU401 interrupt */
|
||||
if ((pci_irqstatus & ALS4K_IOB_0E_MPU_IRQ)
|
||||
&& (chip->rmidi)) /* MPU401 interrupt */
|
||||
snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
|
||||
/* release the gcr */
|
||||
outb(gcr_status, chip->alt_port + ALS4K_IOB_0E_SB_MPU_IRQ);
|
||||
/* ACK the PCI block IRQ */
|
||||
snd_als4k_iobase_writeb(chip->alt_port,
|
||||
ALS4K_IOB_0E_IRQTYPE_SB_CR1E_MPU, pci_irqstatus);
|
||||
|
||||
spin_lock(&chip->mixer_lock);
|
||||
sb_status = snd_sbmixer_read(chip, SB_DSP4_IRQSTATUS);
|
||||
/* SPECS_PAGE: 20 */
|
||||
sb_irqstatus = snd_sbmixer_read(chip, SB_DSP4_IRQSTATUS);
|
||||
spin_unlock(&chip->mixer_lock);
|
||||
|
||||
if (sb_status & SB_IRQTYPE_8BIT)
|
||||
if (sb_irqstatus & SB_IRQTYPE_8BIT)
|
||||
snd_sb_ack_8bit(chip);
|
||||
if (sb_status & SB_IRQTYPE_16BIT)
|
||||
if (sb_irqstatus & SB_IRQTYPE_16BIT)
|
||||
snd_sb_ack_16bit(chip);
|
||||
if (sb_status & SB_IRQTYPE_MPUIN)
|
||||
if (sb_irqstatus & SB_IRQTYPE_MPUIN)
|
||||
inb(chip->mpu_port);
|
||||
if (sb_status & 0x20)
|
||||
inb(SBP(chip, RESET));
|
||||
return IRQ_HANDLED;
|
||||
if (sb_irqstatus & ALS4K_IRQTYPE_CR1E_DMA)
|
||||
snd_als4k_iobase_readb(chip->alt_port,
|
||||
ALS4K_IOB_16_ACK_FOR_CR1E);
|
||||
|
||||
/* printk(KERN_INFO "als4000: irq 0x%04x 0x%04x\n",
|
||||
pci_irqstatus, sb_irqstatus); */
|
||||
|
||||
/* only ack the things we actually handled above */
|
||||
return IRQ_RETVAL(
|
||||
(pci_irqstatus & (ALS4K_IOB_0E_SB_DMA_IRQ|ALS4K_IOB_0E_CR1E_IRQ|
|
||||
ALS4K_IOB_0E_MPU_IRQ))
|
||||
|| (sb_irqstatus & (SB_IRQTYPE_8BIT|SB_IRQTYPE_16BIT|
|
||||
SB_IRQTYPE_MPUIN|ALS4K_IRQTYPE_CR1E_DMA))
|
||||
);
|
||||
}
|
||||
|
||||
/*****************************************************************/
|
||||
|
|
@ -603,7 +700,8 @@ static int __devinit snd_als4000_pcm(struct snd_sb *chip, int device)
|
|||
struct snd_pcm *pcm;
|
||||
int err;
|
||||
|
||||
if ((err = snd_pcm_new(chip->card, "ALS4000 DSP", device, 1, 1, &pcm)) < 0)
|
||||
err = snd_pcm_new(chip->card, "ALS4000 DSP", device, 1, 1, &pcm);
|
||||
if (err < 0)
|
||||
return err;
|
||||
pcm->private_data = chip;
|
||||
pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
|
||||
|
|
@ -637,34 +735,38 @@ static void snd_als4000_set_addr(unsigned long iobase,
|
|||
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);
|
||||
snd_als4k_gcr_write_addr(iobase, ALS4K_GCRA8_LEGACY_CFG1, cfg1);
|
||||
snd_als4k_gcr_write_addr(iobase, ALS4K_GCRA9_LEGACY_CFG2, cfg2);
|
||||
}
|
||||
|
||||
static void snd_als4000_configure(struct snd_sb *chip)
|
||||
{
|
||||
unsigned tmp;
|
||||
u8 tmp;
|
||||
int i;
|
||||
|
||||
/* do some more configuration */
|
||||
spin_lock_irq(&chip->mixer_lock);
|
||||
tmp = snd_sbmixer_read(chip, 0xc0);
|
||||
snd_sbmixer_write(chip, 0xc0, tmp|0x80);
|
||||
/* always select DMA channel 0, since we do not actually use DMA */
|
||||
tmp = snd_als4_cr_read(chip, ALS4K_CR0_SB_CONFIG);
|
||||
snd_als4_cr_write(chip, ALS4K_CR0_SB_CONFIG,
|
||||
tmp|ALS4K_CR0_MX80_81_REG_WRITE_ENABLE);
|
||||
/* always select DMA channel 0, since we do not actually use DMA
|
||||
* SPECS_PAGE: 19/20 */
|
||||
snd_sbmixer_write(chip, SB_DSP4_DMASETUP, SB_DMASETUP_DMA0);
|
||||
snd_sbmixer_write(chip, 0xc0, tmp&0x7f);
|
||||
snd_als4_cr_write(chip, ALS4K_CR0_SB_CONFIG,
|
||||
tmp & ~ALS4K_CR0_MX80_81_REG_WRITE_ENABLE);
|
||||
spin_unlock_irq(&chip->mixer_lock);
|
||||
|
||||
spin_lock_irq(&chip->reg_lock);
|
||||
/* enable interrupts */
|
||||
snd_als4000_gcr_write(chip, ALS4K_GCR_8C_MISC_CTRL,
|
||||
ALS4K_GCR_8C_IRQ_MASK_CTRL_ENABLE);
|
||||
snd_als4k_gcr_write(chip, ALS4K_GCR8C_MISC_CTRL,
|
||||
ALS4K_GCR8C_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);
|
||||
/* SPECS_PAGE: 39 */
|
||||
for (i = ALS4K_GCR91_DMA0_ADDR; i <= ALS4K_GCR96_DMA3_MODE_COUNT; ++i)
|
||||
snd_als4k_gcr_write(chip, i, 0);
|
||||
|
||||
snd_als4000_gcr_write(chip, ALS4K_GCR_99_DMA_EMULATION_CTRL,
|
||||
snd_als4000_gcr_read(chip, ALS4K_GCR_99_DMA_EMULATION_CTRL));
|
||||
snd_als4k_gcr_write(chip, ALS4K_GCR99_DMA_EMULATION_CTRL,
|
||||
snd_als4k_gcr_read(chip, ALS4K_GCR99_DMA_EMULATION_CTRL));
|
||||
spin_unlock_irq(&chip->reg_lock);
|
||||
}
|
||||
|
||||
|
|
@ -739,7 +841,7 @@ static void snd_card_als4000_free( struct snd_card *card )
|
|||
struct snd_card_als4000 *acard = card->private_data;
|
||||
|
||||
/* make sure that interrupts are disabled */
|
||||
snd_als4000_gcr_write_addr(acard->iobase, ALS4K_GCR_8C_MISC_CTRL, 0);
|
||||
snd_als4k_gcr_write_addr(acard->iobase, ALS4K_GCR8C_MISC_CTRL, 0);
|
||||
/* free resources */
|
||||
snd_als4000_free_gameport(acard);
|
||||
pci_release_regions(acard->pci);
|
||||
|
|
@ -788,7 +890,7 @@ static int __devinit snd_card_als4000_probe(struct pci_dev *pci,
|
|||
pci_set_master(pci);
|
||||
|
||||
card = snd_card_new(index[dev], id[dev], THIS_MODULE,
|
||||
sizeof( struct snd_card_als4000 ) );
|
||||
sizeof(*acard) /* private_data: acard */);
|
||||
if (card == NULL) {
|
||||
pci_release_regions(pci);
|
||||
pci_disable_device(pci);
|
||||
|
|
@ -806,6 +908,7 @@ static int __devinit snd_card_als4000_probe(struct pci_dev *pci,
|
|||
if ((err = snd_sbdsp_create(card,
|
||||
iobase + ALS4K_IOB_10_ADLIB_ADDR0,
|
||||
pci->irq,
|
||||
/* internally registered as IRQF_SHARED in case of ALS4000 SB */
|
||||
snd_als4000_interrupt,
|
||||
-1,
|
||||
-1,
|
||||
|
|
@ -835,8 +938,10 @@ static int __devinit snd_card_als4000_probe(struct pci_dev *pci,
|
|||
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... */
|
||||
* at ALS4K_CR1A_MPU401_UART_MODE_CONTROL
|
||||
* (pass-thru / UART switching, fast MIDI clock, etc.),
|
||||
* however there doesn't seem to be an ALSA API for this...
|
||||
* SPECS_PAGE: 21 */
|
||||
|
||||
if ((err = snd_als4000_pcm(chip, 0)) < 0) {
|
||||
goto out_err;
|
||||
|
|
|
|||
Loading…
Reference in New Issue