| // SPDX-License-Identifier: GPL-2.0-or-later |
| /* |
| * ALSA driver for Intel ICH (i8x0) chipsets |
| * |
| * Copyright (c) 2000 Jaroslav Kysela <perex@perex.cz> |
| * |
| * This code also contains alpha support for SiS 735 chipsets provided |
| * by Mike Pieper <mptei@users.sourceforge.net>. We have no datasheet |
| * for SiS735, so the code is not fully functional. |
| * |
| |
| */ |
| |
| #include <linux/io.h> |
| #include <linux/delay.h> |
| #include <linux/interrupt.h> |
| #include <linux/init.h> |
| #include <linux/pci.h> |
| #include <linux/slab.h> |
| #include <linux/module.h> |
| #include <sound/core.h> |
| #include <sound/pcm.h> |
| #include <sound/ac97_codec.h> |
| #include <sound/info.h> |
| #include <sound/initval.h> |
| |
| MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>"); |
| MODULE_DESCRIPTION("Intel 82801AA,82901AB,i810,i820,i830,i840,i845,MX440; SiS 7012; Ali 5455"); |
| MODULE_LICENSE("GPL"); |
| |
| static int index = SNDRV_DEFAULT_IDX1; /* Index 0-MAX */ |
| static char *id = SNDRV_DEFAULT_STR1; /* ID for this card */ |
| static int ac97_clock; |
| static char *ac97_quirk; |
| static bool buggy_semaphore; |
| static int buggy_irq = -1; /* auto-check */ |
| static bool xbox; |
| static int spdif_aclink = -1; |
| static int inside_vm = -1; |
| |
| module_param(index, int, 0444); |
| MODULE_PARM_DESC(index, "Index value for Intel i8x0 soundcard."); |
| module_param(id, charp, 0444); |
| MODULE_PARM_DESC(id, "ID string for Intel i8x0 soundcard."); |
| module_param(ac97_clock, int, 0444); |
| MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (0 = allowlist + auto-detect, 1 = force autodetect)."); |
| module_param(ac97_quirk, charp, 0444); |
| MODULE_PARM_DESC(ac97_quirk, "AC'97 workaround for strange hardware."); |
| module_param(buggy_semaphore, bool, 0444); |
| MODULE_PARM_DESC(buggy_semaphore, "Enable workaround for hardwares with problematic codec semaphores."); |
| module_param(buggy_irq, bint, 0444); |
| MODULE_PARM_DESC(buggy_irq, "Enable workaround for buggy interrupts on some motherboards."); |
| module_param(xbox, bool, 0444); |
| MODULE_PARM_DESC(xbox, "Set to 1 for Xbox, if you have problems with the AC'97 codec detection."); |
| module_param(spdif_aclink, int, 0444); |
| MODULE_PARM_DESC(spdif_aclink, "S/PDIF over AC-link."); |
| module_param(inside_vm, bint, 0444); |
| MODULE_PARM_DESC(inside_vm, "KVM/Parallels optimization."); |
| |
| /* just for backward compatibility */ |
| static bool enable; |
| module_param(enable, bool, 0444); |
| static int joystick; |
| module_param(joystick, int, 0444); |
| |
| /* |
| * Direct registers |
| */ |
| enum { DEVICE_INTEL, DEVICE_INTEL_ICH4, DEVICE_SIS, DEVICE_ALI, DEVICE_NFORCE }; |
| |
| #define ICHREG(x) ICH_REG_##x |
| |
| #define DEFINE_REGSET(name,base) \ |
| enum { \ |
| ICH_REG_##name##_BDBAR = base + 0x0, /* dword - buffer descriptor list base address */ \ |
| ICH_REG_##name##_CIV = base + 0x04, /* byte - current index value */ \ |
| ICH_REG_##name##_LVI = base + 0x05, /* byte - last valid index */ \ |
| ICH_REG_##name##_SR = base + 0x06, /* byte - status register */ \ |
| ICH_REG_##name##_PICB = base + 0x08, /* word - position in current buffer */ \ |
| ICH_REG_##name##_PIV = base + 0x0a, /* byte - prefetched index value */ \ |
| ICH_REG_##name##_CR = base + 0x0b, /* byte - control register */ \ |
| } |
| |
| /* busmaster blocks */ |
| DEFINE_REGSET(OFF, 0); /* offset */ |
| DEFINE_REGSET(PI, 0x00); /* PCM in */ |
| DEFINE_REGSET(PO, 0x10); /* PCM out */ |
| DEFINE_REGSET(MC, 0x20); /* Mic in */ |
| |
| /* ICH4 busmaster blocks */ |
| DEFINE_REGSET(MC2, 0x40); /* Mic in 2 */ |
| DEFINE_REGSET(PI2, 0x50); /* PCM in 2 */ |
| DEFINE_REGSET(SP, 0x60); /* SPDIF out */ |
| |
| /* values for each busmaster block */ |
| |
| /* LVI */ |
| #define ICH_REG_LVI_MASK 0x1f |
| |
| /* SR */ |
| #define ICH_FIFOE 0x10 /* FIFO error */ |
| #define ICH_BCIS 0x08 /* buffer completion interrupt status */ |
| #define ICH_LVBCI 0x04 /* last valid buffer completion interrupt */ |
| #define ICH_CELV 0x02 /* current equals last valid */ |
| #define ICH_DCH 0x01 /* DMA controller halted */ |
| |
| /* PIV */ |
| #define ICH_REG_PIV_MASK 0x1f /* mask */ |
| |
| /* CR */ |
| #define ICH_IOCE 0x10 /* interrupt on completion enable */ |
| #define ICH_FEIE 0x08 /* fifo error interrupt enable */ |
| #define ICH_LVBIE 0x04 /* last valid buffer interrupt enable */ |
| #define ICH_RESETREGS 0x02 /* reset busmaster registers */ |
| #define ICH_STARTBM 0x01 /* start busmaster operation */ |
| |
| |
| /* global block */ |
| #define ICH_REG_GLOB_CNT 0x2c /* dword - global control */ |
| #define ICH_PCM_SPDIF_MASK 0xc0000000 /* s/pdif pcm slot mask (ICH4) */ |
| #define ICH_PCM_SPDIF_NONE 0x00000000 /* reserved - undefined */ |
| #define ICH_PCM_SPDIF_78 0x40000000 /* s/pdif pcm on slots 7&8 */ |
| #define ICH_PCM_SPDIF_69 0x80000000 /* s/pdif pcm on slots 6&9 */ |
| #define ICH_PCM_SPDIF_1011 0xc0000000 /* s/pdif pcm on slots 10&11 */ |
| #define ICH_PCM_20BIT 0x00400000 /* 20-bit samples (ICH4) */ |
| #define ICH_PCM_246_MASK 0x00300000 /* chan mask (not all chips) */ |
| #define ICH_PCM_8 0x00300000 /* 8 channels (not all chips) */ |
| #define ICH_PCM_6 0x00200000 /* 6 channels (not all chips) */ |
| #define ICH_PCM_4 0x00100000 /* 4 channels (not all chips) */ |
| #define ICH_PCM_2 0x00000000 /* 2 channels (stereo) */ |
| #define ICH_SIS_PCM_246_MASK 0x000000c0 /* 6 channels (SIS7012) */ |
| #define ICH_SIS_PCM_6 0x00000080 /* 6 channels (SIS7012) */ |
| #define ICH_SIS_PCM_4 0x00000040 /* 4 channels (SIS7012) */ |
| #define ICH_SIS_PCM_2 0x00000000 /* 2 channels (SIS7012) */ |
| #define ICH_TRIE 0x00000040 /* tertiary resume interrupt enable */ |
| #define ICH_SRIE 0x00000020 /* secondary resume interrupt enable */ |
| #define ICH_PRIE 0x00000010 /* primary resume interrupt enable */ |
| #define ICH_ACLINK 0x00000008 /* AClink shut off */ |
| #define ICH_AC97WARM 0x00000004 /* AC'97 warm reset */ |
| #define ICH_AC97COLD 0x00000002 /* AC'97 cold reset */ |
| #define ICH_GIE 0x00000001 /* GPI interrupt enable */ |
| #define ICH_REG_GLOB_STA 0x30 /* dword - global status */ |
| #define ICH_TRI 0x20000000 /* ICH4: tertiary (AC_SDIN2) resume interrupt */ |
| #define ICH_TCR 0x10000000 /* ICH4: tertiary (AC_SDIN2) codec ready */ |
| #define ICH_BCS 0x08000000 /* ICH4: bit clock stopped */ |
| #define ICH_SPINT 0x04000000 /* ICH4: S/PDIF interrupt */ |
| #define ICH_P2INT 0x02000000 /* ICH4: PCM2-In interrupt */ |
| #define ICH_M2INT 0x01000000 /* ICH4: Mic2-In interrupt */ |
| #define ICH_SAMPLE_CAP 0x00c00000 /* ICH4: sample capability bits (RO) */ |
| #define ICH_SAMPLE_16_20 0x00400000 /* ICH4: 16- and 20-bit samples */ |
| #define ICH_MULTICHAN_CAP 0x00300000 /* ICH4: multi-channel capability bits (RO) */ |
| #define ICH_SIS_TRI 0x00080000 /* SIS: tertiary resume irq */ |
| #define ICH_SIS_TCR 0x00040000 /* SIS: tertiary codec ready */ |
| #define ICH_MD3 0x00020000 /* modem power down semaphore */ |
| #define ICH_AD3 0x00010000 /* audio power down semaphore */ |
| #define ICH_RCS 0x00008000 /* read completion status */ |
| #define ICH_BIT3 0x00004000 /* bit 3 slot 12 */ |
| #define ICH_BIT2 0x00002000 /* bit 2 slot 12 */ |
| #define ICH_BIT1 0x00001000 /* bit 1 slot 12 */ |
| #define ICH_SRI 0x00000800 /* secondary (AC_SDIN1) resume interrupt */ |
| #define ICH_PRI 0x00000400 /* primary (AC_SDIN0) resume interrupt */ |
| #define ICH_SCR 0x00000200 /* secondary (AC_SDIN1) codec ready */ |
| #define ICH_PCR 0x00000100 /* primary (AC_SDIN0) codec ready */ |
| #define ICH_MCINT 0x00000080 /* MIC capture interrupt */ |
| #define ICH_POINT 0x00000040 /* playback interrupt */ |
| #define ICH_PIINT 0x00000020 /* capture interrupt */ |
| #define ICH_NVSPINT 0x00000010 /* nforce spdif interrupt */ |
| #define ICH_MOINT 0x00000004 /* modem playback interrupt */ |
| #define ICH_MIINT 0x00000002 /* modem capture interrupt */ |
| #define ICH_GSCI 0x00000001 /* GPI status change interrupt */ |
| #define ICH_REG_ACC_SEMA 0x34 /* byte - codec write semaphore */ |
| #define ICH_CAS 0x01 /* codec access semaphore */ |
| #define ICH_REG_SDM 0x80 |
| #define ICH_DI2L_MASK 0x000000c0 /* PCM In 2, Mic In 2 data in line */ |
| #define ICH_DI2L_SHIFT 6 |
| #define ICH_DI1L_MASK 0x00000030 /* PCM In 1, Mic In 1 data in line */ |
| #define ICH_DI1L_SHIFT 4 |
| #define ICH_SE 0x00000008 /* steer enable */ |
| #define ICH_LDI_MASK 0x00000003 /* last codec read data input */ |
| |
| #define ICH_MAX_FRAGS 32 /* max hw frags */ |
| |
| |
| /* |
| * registers for Ali5455 |
| */ |
| |
| /* ALi 5455 busmaster blocks */ |
| DEFINE_REGSET(AL_PI, 0x40); /* ALi PCM in */ |
| DEFINE_REGSET(AL_PO, 0x50); /* Ali PCM out */ |
| DEFINE_REGSET(AL_MC, 0x60); /* Ali Mic in */ |
| DEFINE_REGSET(AL_CDC_SPO, 0x70); /* Ali Codec SPDIF out */ |
| DEFINE_REGSET(AL_CENTER, 0x80); /* Ali center out */ |
| DEFINE_REGSET(AL_LFE, 0x90); /* Ali center out */ |
| DEFINE_REGSET(AL_CLR_SPI, 0xa0); /* Ali Controller SPDIF in */ |
| DEFINE_REGSET(AL_CLR_SPO, 0xb0); /* Ali Controller SPDIF out */ |
| DEFINE_REGSET(AL_I2S, 0xc0); /* Ali I2S in */ |
| DEFINE_REGSET(AL_PI2, 0xd0); /* Ali PCM2 in */ |
| DEFINE_REGSET(AL_MC2, 0xe0); /* Ali Mic2 in */ |
| |
| enum { |
| ICH_REG_ALI_SCR = 0x00, /* System Control Register */ |
| ICH_REG_ALI_SSR = 0x04, /* System Status Register */ |
| ICH_REG_ALI_DMACR = 0x08, /* DMA Control Register */ |
| ICH_REG_ALI_FIFOCR1 = 0x0c, /* FIFO Control Register 1 */ |
| ICH_REG_ALI_INTERFACECR = 0x10, /* Interface Control Register */ |
| ICH_REG_ALI_INTERRUPTCR = 0x14, /* Interrupt control Register */ |
| ICH_REG_ALI_INTERRUPTSR = 0x18, /* Interrupt Status Register */ |
| ICH_REG_ALI_FIFOCR2 = 0x1c, /* FIFO Control Register 2 */ |
| ICH_REG_ALI_CPR = 0x20, /* Command Port Register */ |
| ICH_REG_ALI_CPR_ADDR = 0x22, /* ac97 addr write */ |
| ICH_REG_ALI_SPR = 0x24, /* Status Port Register */ |
| ICH_REG_ALI_SPR_ADDR = 0x26, /* ac97 addr read */ |
| ICH_REG_ALI_FIFOCR3 = 0x2c, /* FIFO Control Register 3 */ |
| ICH_REG_ALI_TTSR = 0x30, /* Transmit Tag Slot Register */ |
| ICH_REG_ALI_RTSR = 0x34, /* Receive Tag Slot Register */ |
| ICH_REG_ALI_CSPSR = 0x38, /* Command/Status Port Status Register */ |
| ICH_REG_ALI_CAS = 0x3c, /* Codec Write Semaphore Register */ |
| ICH_REG_ALI_HWVOL = 0xf0, /* hardware volume control/status */ |
| ICH_REG_ALI_I2SCR = 0xf4, /* I2S control/status */ |
| ICH_REG_ALI_SPDIFCSR = 0xf8, /* spdif channel status register */ |
| ICH_REG_ALI_SPDIFICS = 0xfc, /* spdif interface control/status */ |
| }; |
| |
| #define ALI_CAS_SEM_BUSY 0x80000000 |
| #define ALI_CPR_ADDR_SECONDARY 0x100 |
| #define ALI_CPR_ADDR_READ 0x80 |
| #define ALI_CSPSR_CODEC_READY 0x08 |
| #define ALI_CSPSR_READ_OK 0x02 |
| #define ALI_CSPSR_WRITE_OK 0x01 |
| |
| /* interrupts for the whole chip by interrupt status register finish */ |
| |
| #define ALI_INT_MICIN2 (1<<26) |
| #define ALI_INT_PCMIN2 (1<<25) |
| #define ALI_INT_I2SIN (1<<24) |
| #define ALI_INT_SPDIFOUT (1<<23) /* controller spdif out INTERRUPT */ |
| #define ALI_INT_SPDIFIN (1<<22) |
| #define ALI_INT_LFEOUT (1<<21) |
| #define ALI_INT_CENTEROUT (1<<20) |
| #define ALI_INT_CODECSPDIFOUT (1<<19) |
| #define ALI_INT_MICIN (1<<18) |
| #define ALI_INT_PCMOUT (1<<17) |
| #define ALI_INT_PCMIN (1<<16) |
| #define ALI_INT_CPRAIS (1<<7) /* command port available */ |
| #define ALI_INT_SPRAIS (1<<5) /* status port available */ |
| #define ALI_INT_GPIO (1<<1) |
| #define ALI_INT_MASK (ALI_INT_SPDIFOUT|ALI_INT_CODECSPDIFOUT|\ |
| ALI_INT_MICIN|ALI_INT_PCMOUT|ALI_INT_PCMIN) |
| |
| #define ICH_ALI_SC_RESET (1<<31) /* master reset */ |
| #define ICH_ALI_SC_AC97_DBL (1<<30) |
| #define ICH_ALI_SC_CODEC_SPDF (3<<20) /* 1=7/8, 2=6/9, 3=10/11 */ |
| #define ICH_ALI_SC_IN_BITS (3<<18) |
| #define ICH_ALI_SC_OUT_BITS (3<<16) |
| #define ICH_ALI_SC_6CH_CFG (3<<14) |
| #define ICH_ALI_SC_PCM_4 (1<<8) |
| #define ICH_ALI_SC_PCM_6 (2<<8) |
| #define ICH_ALI_SC_PCM_246_MASK (3<<8) |
| |
| #define ICH_ALI_SS_SEC_ID (3<<5) |
| #define ICH_ALI_SS_PRI_ID (3<<3) |
| |
| #define ICH_ALI_IF_AC97SP (1<<21) |
| #define ICH_ALI_IF_MC (1<<20) |
| #define ICH_ALI_IF_PI (1<<19) |
| #define ICH_ALI_IF_MC2 (1<<18) |
| #define ICH_ALI_IF_PI2 (1<<17) |
| #define ICH_ALI_IF_LINE_SRC (1<<15) /* 0/1 = slot 3/6 */ |
| #define ICH_ALI_IF_MIC_SRC (1<<14) /* 0/1 = slot 3/6 */ |
| #define ICH_ALI_IF_SPDF_SRC (3<<12) /* 00 = PCM, 01 = AC97-in, 10 = spdif-in, 11 = i2s */ |
| #define ICH_ALI_IF_AC97_OUT (3<<8) /* 00 = PCM, 10 = spdif-in, 11 = i2s */ |
| #define ICH_ALI_IF_PO_SPDF (1<<3) |
| #define ICH_ALI_IF_PO (1<<1) |
| |
| /* |
| * |
| */ |
| |
| enum { |
| ICHD_PCMIN, |
| ICHD_PCMOUT, |
| ICHD_MIC, |
| ICHD_MIC2, |
| ICHD_PCM2IN, |
| ICHD_SPBAR, |
| ICHD_LAST = ICHD_SPBAR |
| }; |
| enum { |
| NVD_PCMIN, |
| NVD_PCMOUT, |
| NVD_MIC, |
| NVD_SPBAR, |
| NVD_LAST = NVD_SPBAR |
| }; |
| enum { |
| ALID_PCMIN, |
| ALID_PCMOUT, |
| ALID_MIC, |
| ALID_AC97SPDIFOUT, |
| ALID_SPDIFIN, |
| ALID_SPDIFOUT, |
| ALID_LAST = ALID_SPDIFOUT |
| }; |
| |
| #define get_ichdev(substream) (substream->runtime->private_data) |
| |
| struct ichdev { |
| unsigned int ichd; /* ich device number */ |
| unsigned long reg_offset; /* offset to bmaddr */ |
| __le32 *bdbar; /* CPU address (32bit) */ |
| unsigned int bdbar_addr; /* PCI bus address (32bit) */ |
| struct snd_pcm_substream *substream; |
| unsigned int physbuf; /* physical address (32bit) */ |
| unsigned int size; |
| unsigned int fragsize; |
| unsigned int fragsize1; |
| unsigned int position; |
| unsigned int pos_shift; |
| unsigned int last_pos; |
| int frags; |
| int lvi; |
| int lvi_frag; |
| int civ; |
| int ack; |
| int ack_reload; |
| unsigned int ack_bit; |
| unsigned int roff_sr; |
| unsigned int roff_picb; |
| unsigned int int_sta_mask; /* interrupt status mask */ |
| unsigned int ali_slot; /* ALI DMA slot */ |
| struct ac97_pcm *pcm; |
| int pcm_open_flag; |
| unsigned int prepared:1; |
| unsigned int suspended: 1; |
| }; |
| |
| struct intel8x0 { |
| unsigned int device_type; |
| |
| int irq; |
| |
| void __iomem *addr; |
| void __iomem *bmaddr; |
| |
| struct pci_dev *pci; |
| struct snd_card *card; |
| |
| int pcm_devs; |
| struct snd_pcm *pcm[6]; |
| struct ichdev ichd[6]; |
| |
| unsigned multi4: 1, |
| multi6: 1, |
| multi8 :1, |
| dra: 1, |
| smp20bit: 1; |
| unsigned in_ac97_init: 1, |
| in_sdin_init: 1; |
| unsigned in_measurement: 1; /* during ac97 clock measurement */ |
| unsigned fix_nocache: 1; /* workaround for 440MX */ |
| unsigned buggy_irq: 1; /* workaround for buggy mobos */ |
| unsigned xbox: 1; /* workaround for Xbox AC'97 detection */ |
| unsigned buggy_semaphore: 1; /* workaround for buggy codec semaphore */ |
| unsigned inside_vm: 1; /* enable VM optimization */ |
| |
| int spdif_idx; /* SPDIF BAR index; *_SPBAR or -1 if use PCMOUT */ |
| unsigned int sdm_saved; /* SDM reg value */ |
| |
| struct snd_ac97_bus *ac97_bus; |
| struct snd_ac97 *ac97[3]; |
| unsigned int ac97_sdin[3]; |
| unsigned int max_codecs, ncodecs; |
| const unsigned int *codec_bit; |
| unsigned int codec_isr_bits; |
| unsigned int codec_ready_bits; |
| |
| spinlock_t reg_lock; |
| |
| u32 bdbars_count; |
| struct snd_dma_buffer bdbars; |
| u32 int_sta_reg; /* interrupt status register */ |
| u32 int_sta_mask; /* interrupt status mask */ |
| }; |
| |
| static const struct pci_device_id snd_intel8x0_ids[] = { |
| { PCI_VDEVICE(INTEL, 0x2415), DEVICE_INTEL }, /* 82801AA */ |
| { PCI_VDEVICE(INTEL, 0x2425), DEVICE_INTEL }, /* 82901AB */ |
| { PCI_VDEVICE(INTEL, 0x2445), DEVICE_INTEL }, /* 82801BA */ |
| { PCI_VDEVICE(INTEL, 0x2485), DEVICE_INTEL }, /* ICH3 */ |
| { PCI_VDEVICE(INTEL, 0x24c5), DEVICE_INTEL_ICH4 }, /* ICH4 */ |
| { PCI_VDEVICE(INTEL, 0x24d5), DEVICE_INTEL_ICH4 }, /* ICH5 */ |
| { PCI_VDEVICE(INTEL, 0x25a6), DEVICE_INTEL_ICH4 }, /* ESB */ |
| { PCI_VDEVICE(INTEL, 0x266e), DEVICE_INTEL_ICH4 }, /* ICH6 */ |
| { PCI_VDEVICE(INTEL, 0x27de), DEVICE_INTEL_ICH4 }, /* ICH7 */ |
| { PCI_VDEVICE(INTEL, 0x2698), DEVICE_INTEL_ICH4 }, /* ESB2 */ |
| { PCI_VDEVICE(INTEL, 0x7195), DEVICE_INTEL }, /* 440MX */ |
| { PCI_VDEVICE(SI, 0x7012), DEVICE_SIS }, /* SI7012 */ |
| { PCI_VDEVICE(NVIDIA, 0x01b1), DEVICE_NFORCE }, /* NFORCE */ |
| { PCI_VDEVICE(NVIDIA, 0x003a), DEVICE_NFORCE }, /* MCP04 */ |
| { PCI_VDEVICE(NVIDIA, 0x006a), DEVICE_NFORCE }, /* NFORCE2 */ |
| { PCI_VDEVICE(NVIDIA, 0x0059), DEVICE_NFORCE }, /* CK804 */ |
| { PCI_VDEVICE(NVIDIA, 0x008a), DEVICE_NFORCE }, /* CK8 */ |
| { PCI_VDEVICE(NVIDIA, 0x00da), DEVICE_NFORCE }, /* NFORCE3 */ |
| { PCI_VDEVICE(NVIDIA, 0x00ea), DEVICE_NFORCE }, /* CK8S */ |
| { PCI_VDEVICE(NVIDIA, 0x026b), DEVICE_NFORCE }, /* MCP51 */ |
| { PCI_VDEVICE(AMD, 0x746d), DEVICE_INTEL }, /* AMD8111 */ |
| { PCI_VDEVICE(AMD, 0x7445), DEVICE_INTEL }, /* AMD768 */ |
| { PCI_VDEVICE(AL, 0x5455), DEVICE_ALI }, /* Ali5455 */ |
| { 0, } |
| }; |
| |
| MODULE_DEVICE_TABLE(pci, snd_intel8x0_ids); |
| |
| /* |
| * Lowlevel I/O - busmaster |
| */ |
| |
| static inline u8 igetbyte(struct intel8x0 *chip, u32 offset) |
| { |
| return ioread8(chip->bmaddr + offset); |
| } |
| |
| static inline u16 igetword(struct intel8x0 *chip, u32 offset) |
| { |
| return ioread16(chip->bmaddr + offset); |
| } |
| |
| static inline u32 igetdword(struct intel8x0 *chip, u32 offset) |
| { |
| return ioread32(chip->bmaddr + offset); |
| } |
| |
| static inline void iputbyte(struct intel8x0 *chip, u32 offset, u8 val) |
| { |
| iowrite8(val, chip->bmaddr + offset); |
| } |
| |
| static inline void iputword(struct intel8x0 *chip, u32 offset, u16 val) |
| { |
| iowrite16(val, chip->bmaddr + offset); |
| } |
| |
| static inline void iputdword(struct intel8x0 *chip, u32 offset, u32 val) |
| { |
| iowrite32(val, chip->bmaddr + offset); |
| } |
| |
| /* |
| * Lowlevel I/O - AC'97 registers |
| */ |
| |
| static inline u16 iagetword(struct intel8x0 *chip, u32 offset) |
| { |
| return ioread16(chip->addr + offset); |
| } |
| |
| static inline void iaputword(struct intel8x0 *chip, u32 offset, u16 val) |
| { |
| iowrite16(val, chip->addr + offset); |
| } |
| |
| /* |
| * Basic I/O |
| */ |
| |
| /* |
| * access to AC97 codec via normal i/o (for ICH and SIS7012) |
| */ |
| |
| static int snd_intel8x0_codec_semaphore(struct intel8x0 *chip, unsigned int codec) |
| { |
| int time; |
| |
| if (codec > 2) |
| return -EIO; |
| if (chip->in_sdin_init) { |
| /* we don't know the ready bit assignment at the moment */ |
| /* so we check any */ |
| codec = chip->codec_isr_bits; |
| } else { |
| codec = chip->codec_bit[chip->ac97_sdin[codec]]; |
| } |
| |
| /* codec ready ? */ |
| if ((igetdword(chip, ICHREG(GLOB_STA)) & codec) == 0) |
| return -EIO; |
| |
| if (chip->buggy_semaphore) |
| return 0; /* just ignore ... */ |
| |
| /* Anyone holding a semaphore for 1 msec should be shot... */ |
| time = 100; |
| do { |
| if (!(igetbyte(chip, ICHREG(ACC_SEMA)) & ICH_CAS)) |
| return 0; |
| udelay(10); |
| } while (time--); |
| |
| /* access to some forbidden (non existent) ac97 registers will not |
| * reset the semaphore. So even if you don't get the semaphore, still |
| * continue the access. We don't need the semaphore anyway. */ |
| dev_err(chip->card->dev, |
| "codec_semaphore: semaphore is not ready [0x%x][0x%x]\n", |
| igetbyte(chip, ICHREG(ACC_SEMA)), igetdword(chip, ICHREG(GLOB_STA))); |
| iagetword(chip, 0); /* clear semaphore flag */ |
| /* I don't care about the semaphore */ |
| return -EBUSY; |
| } |
| |
| static void snd_intel8x0_codec_write(struct snd_ac97 *ac97, |
| unsigned short reg, |
| unsigned short val) |
| { |
| struct intel8x0 *chip = ac97->private_data; |
| |
| if (snd_intel8x0_codec_semaphore(chip, ac97->num) < 0) { |
| if (! chip->in_ac97_init) |
| dev_err(chip->card->dev, |
| "codec_write %d: semaphore is not ready for register 0x%x\n", |
| ac97->num, reg); |
| } |
| iaputword(chip, reg + ac97->num * 0x80, val); |
| } |
| |
| static unsigned short snd_intel8x0_codec_read(struct snd_ac97 *ac97, |
| unsigned short reg) |
| { |
| struct intel8x0 *chip = ac97->private_data; |
| unsigned short res; |
| unsigned int tmp; |
| |
| if (snd_intel8x0_codec_semaphore(chip, ac97->num) < 0) { |
| if (! chip->in_ac97_init) |
| dev_err(chip->card->dev, |
| "codec_read %d: semaphore is not ready for register 0x%x\n", |
| ac97->num, reg); |
| res = 0xffff; |
| } else { |
| res = iagetword(chip, reg + ac97->num * 0x80); |
| tmp = igetdword(chip, ICHREG(GLOB_STA)); |
| if (tmp & ICH_RCS) { |
| /* reset RCS and preserve other R/WC bits */ |
| iputdword(chip, ICHREG(GLOB_STA), tmp & |
| ~(chip->codec_ready_bits | ICH_GSCI)); |
| if (! chip->in_ac97_init) |
| dev_err(chip->card->dev, |
| "codec_read %d: read timeout for register 0x%x\n", |
| ac97->num, reg); |
| res = 0xffff; |
| } |
| } |
| return res; |
| } |
| |
| static void snd_intel8x0_codec_read_test(struct intel8x0 *chip, |
| unsigned int codec) |
| { |
| unsigned int tmp; |
| |
| if (snd_intel8x0_codec_semaphore(chip, codec) >= 0) { |
| iagetword(chip, codec * 0x80); |
| tmp = igetdword(chip, ICHREG(GLOB_STA)); |
| if (tmp & ICH_RCS) { |
| /* reset RCS and preserve other R/WC bits */ |
| iputdword(chip, ICHREG(GLOB_STA), tmp & |
| ~(chip->codec_ready_bits | ICH_GSCI)); |
| } |
| } |
| } |
| |
| /* |
| * access to AC97 for Ali5455 |
| */ |
| static int snd_intel8x0_ali_codec_ready(struct intel8x0 *chip, int mask) |
| { |
| int count = 0; |
| for (count = 0; count < 0x7f; count++) { |
| int val = igetbyte(chip, ICHREG(ALI_CSPSR)); |
| if (val & mask) |
| return 0; |
| } |
| if (! chip->in_ac97_init) |
| dev_warn(chip->card->dev, "AC97 codec ready timeout.\n"); |
| return -EBUSY; |
| } |
| |
| static int snd_intel8x0_ali_codec_semaphore(struct intel8x0 *chip) |
| { |
| int time = 100; |
| if (chip->buggy_semaphore) |
| return 0; /* just ignore ... */ |
| while (--time && (igetdword(chip, ICHREG(ALI_CAS)) & ALI_CAS_SEM_BUSY)) |
| udelay(1); |
| if (! time && ! chip->in_ac97_init) |
| dev_warn(chip->card->dev, "ali_codec_semaphore timeout\n"); |
| return snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_CODEC_READY); |
| } |
| |
| static unsigned short snd_intel8x0_ali_codec_read(struct snd_ac97 *ac97, unsigned short reg) |
| { |
| struct intel8x0 *chip = ac97->private_data; |
| unsigned short data = 0xffff; |
| |
| if (snd_intel8x0_ali_codec_semaphore(chip)) |
| goto __err; |
| reg |= ALI_CPR_ADDR_READ; |
| if (ac97->num) |
| reg |= ALI_CPR_ADDR_SECONDARY; |
| iputword(chip, ICHREG(ALI_CPR_ADDR), reg); |
| if (snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_READ_OK)) |
| goto __err; |
| data = igetword(chip, ICHREG(ALI_SPR)); |
| __err: |
| return data; |
| } |
| |
| static void snd_intel8x0_ali_codec_write(struct snd_ac97 *ac97, unsigned short reg, |
| unsigned short val) |
| { |
| struct intel8x0 *chip = ac97->private_data; |
| |
| if (snd_intel8x0_ali_codec_semaphore(chip)) |
| return; |
| iputword(chip, ICHREG(ALI_CPR), val); |
| if (ac97->num) |
| reg |= ALI_CPR_ADDR_SECONDARY; |
| iputword(chip, ICHREG(ALI_CPR_ADDR), reg); |
| snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_WRITE_OK); |
| } |
| |
| |
| /* |
| * DMA I/O |
| */ |
| static void snd_intel8x0_setup_periods(struct intel8x0 *chip, struct ichdev *ichdev) |
| { |
| int idx; |
| __le32 *bdbar = ichdev->bdbar; |
| unsigned long port = ichdev->reg_offset; |
| |
| iputdword(chip, port + ICH_REG_OFF_BDBAR, ichdev->bdbar_addr); |
| if (ichdev->size == ichdev->fragsize) { |
| ichdev->ack_reload = ichdev->ack = 2; |
| ichdev->fragsize1 = ichdev->fragsize >> 1; |
| for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 4) { |
| bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf); |
| bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */ |
| ichdev->fragsize1 >> ichdev->pos_shift); |
| bdbar[idx + 2] = cpu_to_le32(ichdev->physbuf + (ichdev->size >> 1)); |
| bdbar[idx + 3] = cpu_to_le32(0x80000000 | /* interrupt on completion */ |
| ichdev->fragsize1 >> ichdev->pos_shift); |
| } |
| ichdev->frags = 2; |
| } else { |
| ichdev->ack_reload = ichdev->ack = 1; |
| ichdev->fragsize1 = ichdev->fragsize; |
| for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 2) { |
| bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf + |
| (((idx >> 1) * ichdev->fragsize) % |
| ichdev->size)); |
| bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */ |
| ichdev->fragsize >> ichdev->pos_shift); |
| #if 0 |
| dev_dbg(chip->card->dev, "bdbar[%i] = 0x%x [0x%x]\n", |
| idx + 0, bdbar[idx + 0], bdbar[idx + 1]); |
| #endif |
| } |
| ichdev->frags = ichdev->size / ichdev->fragsize; |
| } |
| iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi = ICH_REG_LVI_MASK); |
| ichdev->civ = 0; |
| iputbyte(chip, port + ICH_REG_OFF_CIV, 0); |
| ichdev->lvi_frag = ICH_REG_LVI_MASK % ichdev->frags; |
| ichdev->position = 0; |
| #if 0 |
| dev_dbg(chip->card->dev, |
| "lvi_frag = %i, frags = %i, period_size = 0x%x, period_size1 = 0x%x\n", |
| ichdev->lvi_frag, ichdev->frags, ichdev->fragsize, |
| ichdev->fragsize1); |
| #endif |
| /* clear interrupts */ |
| iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI); |
| } |
| |
| /* |
| * Interrupt handler |
| */ |
| |
| static inline void snd_intel8x0_update(struct intel8x0 *chip, struct ichdev *ichdev) |
| { |
| unsigned long port = ichdev->reg_offset; |
| unsigned long flags; |
| int status, civ, i, step; |
| int ack = 0; |
| |
| if (!(ichdev->prepared || chip->in_measurement) || ichdev->suspended) |
| return; |
| |
| spin_lock_irqsave(&chip->reg_lock, flags); |
| status = igetbyte(chip, port + ichdev->roff_sr); |
| civ = igetbyte(chip, port + ICH_REG_OFF_CIV); |
| if (!(status & ICH_BCIS)) { |
| step = 0; |
| } else if (civ == ichdev->civ) { |
| // snd_printd("civ same %d\n", civ); |
| step = 1; |
| ichdev->civ++; |
| ichdev->civ &= ICH_REG_LVI_MASK; |
| } else { |
| step = civ - ichdev->civ; |
| if (step < 0) |
| step += ICH_REG_LVI_MASK + 1; |
| // if (step != 1) |
| // snd_printd("step = %d, %d -> %d\n", step, ichdev->civ, civ); |
| ichdev->civ = civ; |
| } |
| |
| ichdev->position += step * ichdev->fragsize1; |
| if (! chip->in_measurement) |
| ichdev->position %= ichdev->size; |
| ichdev->lvi += step; |
| ichdev->lvi &= ICH_REG_LVI_MASK; |
| iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi); |
| for (i = 0; i < step; i++) { |
| ichdev->lvi_frag++; |
| ichdev->lvi_frag %= ichdev->frags; |
| ichdev->bdbar[ichdev->lvi * 2] = cpu_to_le32(ichdev->physbuf + ichdev->lvi_frag * ichdev->fragsize1); |
| #if 0 |
| dev_dbg(chip->card->dev, |
| "new: bdbar[%i] = 0x%x [0x%x], prefetch = %i, all = 0x%x, 0x%x\n", |
| ichdev->lvi * 2, ichdev->bdbar[ichdev->lvi * 2], |
| ichdev->bdbar[ichdev->lvi * 2 + 1], inb(ICH_REG_OFF_PIV + port), |
| inl(port + 4), inb(port + ICH_REG_OFF_CR)); |
| #endif |
| if (--ichdev->ack == 0) { |
| ichdev->ack = ichdev->ack_reload; |
| ack = 1; |
| } |
| } |
| spin_unlock_irqrestore(&chip->reg_lock, flags); |
| if (ack && ichdev->substream) { |
| snd_pcm_period_elapsed(ichdev->substream); |
| } |
| iputbyte(chip, port + ichdev->roff_sr, |
| status & (ICH_FIFOE | ICH_BCIS | ICH_LVBCI)); |
| } |
| |
| static irqreturn_t snd_intel8x0_interrupt(int irq, void *dev_id) |
| { |
| struct intel8x0 *chip = dev_id; |
| struct ichdev *ichdev; |
| unsigned int status; |
| unsigned int i; |
| |
| status = igetdword(chip, chip->int_sta_reg); |
| if (status == 0xffffffff) /* we are not yet resumed */ |
| return IRQ_NONE; |
| |
| if ((status & chip->int_sta_mask) == 0) { |
| if (status) { |
| /* ack */ |
| iputdword(chip, chip->int_sta_reg, status); |
| if (! chip->buggy_irq) |
| status = 0; |
| } |
| return IRQ_RETVAL(status); |
| } |
| |
| for (i = 0; i < chip->bdbars_count; i++) { |
| ichdev = &chip->ichd[i]; |
| if (status & ichdev->int_sta_mask) |
| snd_intel8x0_update(chip, ichdev); |
| } |
| |
| /* ack them */ |
| iputdword(chip, chip->int_sta_reg, status & chip->int_sta_mask); |
| |
| return IRQ_HANDLED; |
| } |
| |
| /* |
| * PCM part |
| */ |
| |
| static int snd_intel8x0_pcm_trigger(struct snd_pcm_substream *substream, int cmd) |
| { |
| struct intel8x0 *chip = snd_pcm_substream_chip(substream); |
| struct ichdev *ichdev = get_ichdev(substream); |
| unsigned char val = 0; |
| unsigned long port = ichdev->reg_offset; |
| |
| switch (cmd) { |
| case SNDRV_PCM_TRIGGER_RESUME: |
| ichdev->suspended = 0; |
| fallthrough; |
| case SNDRV_PCM_TRIGGER_START: |
| case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: |
| val = ICH_IOCE | ICH_STARTBM; |
| ichdev->last_pos = ichdev->position; |
| break; |
| case SNDRV_PCM_TRIGGER_SUSPEND: |
| ichdev->suspended = 1; |
| fallthrough; |
| case SNDRV_PCM_TRIGGER_STOP: |
| val = 0; |
| break; |
| case SNDRV_PCM_TRIGGER_PAUSE_PUSH: |
| val = ICH_IOCE; |
| break; |
| default: |
| return -EINVAL; |
| } |
| iputbyte(chip, port + ICH_REG_OFF_CR, val); |
| if (cmd == SNDRV_PCM_TRIGGER_STOP) { |
| /* wait until DMA stopped */ |
| while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH)) ; |
| /* reset whole DMA things */ |
| iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS); |
| } |
| return 0; |
| } |
| |
| static int snd_intel8x0_ali_trigger(struct snd_pcm_substream *substream, int cmd) |
| { |
| struct intel8x0 *chip = snd_pcm_substream_chip(substream); |
| struct ichdev *ichdev = get_ichdev(substream); |
| unsigned long port = ichdev->reg_offset; |
| static const int fiforeg[] = { |
| ICHREG(ALI_FIFOCR1), ICHREG(ALI_FIFOCR2), ICHREG(ALI_FIFOCR3) |
| }; |
| unsigned int val, fifo; |
| |
| val = igetdword(chip, ICHREG(ALI_DMACR)); |
| switch (cmd) { |
| case SNDRV_PCM_TRIGGER_RESUME: |
| ichdev->suspended = 0; |
| fallthrough; |
| case SNDRV_PCM_TRIGGER_START: |
| case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: |
| if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
| /* clear FIFO for synchronization of channels */ |
| fifo = igetdword(chip, fiforeg[ichdev->ali_slot / 4]); |
| fifo &= ~(0xff << (ichdev->ali_slot % 4)); |
| fifo |= 0x83 << (ichdev->ali_slot % 4); |
| iputdword(chip, fiforeg[ichdev->ali_slot / 4], fifo); |
| } |
| iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE); |
| val &= ~(1 << (ichdev->ali_slot + 16)); /* clear PAUSE flag */ |
| /* start DMA */ |
| iputdword(chip, ICHREG(ALI_DMACR), val | (1 << ichdev->ali_slot)); |
| break; |
| case SNDRV_PCM_TRIGGER_SUSPEND: |
| ichdev->suspended = 1; |
| fallthrough; |
| case SNDRV_PCM_TRIGGER_STOP: |
| case SNDRV_PCM_TRIGGER_PAUSE_PUSH: |
| /* pause */ |
| iputdword(chip, ICHREG(ALI_DMACR), val | (1 << (ichdev->ali_slot + 16))); |
| iputbyte(chip, port + ICH_REG_OFF_CR, 0); |
| while (igetbyte(chip, port + ICH_REG_OFF_CR)) |
| ; |
| if (cmd == SNDRV_PCM_TRIGGER_PAUSE_PUSH) |
| break; |
| /* reset whole DMA things */ |
| iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS); |
| /* clear interrupts */ |
| iputbyte(chip, port + ICH_REG_OFF_SR, |
| igetbyte(chip, port + ICH_REG_OFF_SR) | 0x1e); |
| iputdword(chip, ICHREG(ALI_INTERRUPTSR), |
| igetdword(chip, ICHREG(ALI_INTERRUPTSR)) & ichdev->int_sta_mask); |
| break; |
| default: |
| return -EINVAL; |
| } |
| return 0; |
| } |
| |
| static int snd_intel8x0_hw_params(struct snd_pcm_substream *substream, |
| struct snd_pcm_hw_params *hw_params) |
| { |
| struct intel8x0 *chip = snd_pcm_substream_chip(substream); |
| struct ichdev *ichdev = get_ichdev(substream); |
| int dbl = params_rate(hw_params) > 48000; |
| int err; |
| |
| if (ichdev->pcm_open_flag) { |
| snd_ac97_pcm_close(ichdev->pcm); |
| ichdev->pcm_open_flag = 0; |
| ichdev->prepared = 0; |
| } |
| err = snd_ac97_pcm_open(ichdev->pcm, params_rate(hw_params), |
| params_channels(hw_params), |
| ichdev->pcm->r[dbl].slots); |
| if (err >= 0) { |
| ichdev->pcm_open_flag = 1; |
| /* Force SPDIF setting */ |
| if (ichdev->ichd == ICHD_PCMOUT && chip->spdif_idx < 0) |
| snd_ac97_set_rate(ichdev->pcm->r[0].codec[0], AC97_SPDIF, |
| params_rate(hw_params)); |
| } |
| return err; |
| } |
| |
| static int snd_intel8x0_hw_free(struct snd_pcm_substream *substream) |
| { |
| struct ichdev *ichdev = get_ichdev(substream); |
| |
| if (ichdev->pcm_open_flag) { |
| snd_ac97_pcm_close(ichdev->pcm); |
| ichdev->pcm_open_flag = 0; |
| ichdev->prepared = 0; |
| } |
| return 0; |
| } |
| |
| static void snd_intel8x0_setup_pcm_out(struct intel8x0 *chip, |
| struct snd_pcm_runtime *runtime) |
| { |
| unsigned int cnt; |
| int dbl = runtime->rate > 48000; |
| |
| spin_lock_irq(&chip->reg_lock); |
| switch (chip->device_type) { |
| case DEVICE_ALI: |
| cnt = igetdword(chip, ICHREG(ALI_SCR)); |
| cnt &= ~ICH_ALI_SC_PCM_246_MASK; |
| if (runtime->channels == 4 || dbl) |
| cnt |= ICH_ALI_SC_PCM_4; |
| else if (runtime->channels == 6) |
| cnt |= ICH_ALI_SC_PCM_6; |
| iputdword(chip, ICHREG(ALI_SCR), cnt); |
| break; |
| case DEVICE_SIS: |
| cnt = igetdword(chip, ICHREG(GLOB_CNT)); |
| cnt &= ~ICH_SIS_PCM_246_MASK; |
| if (runtime->channels == 4 || dbl) |
| cnt |= ICH_SIS_PCM_4; |
| else if (runtime->channels == 6) |
| cnt |= ICH_SIS_PCM_6; |
| iputdword(chip, ICHREG(GLOB_CNT), cnt); |
| break; |
| default: |
| cnt = igetdword(chip, ICHREG(GLOB_CNT)); |
| cnt &= ~(ICH_PCM_246_MASK | ICH_PCM_20BIT); |
| if (runtime->channels == 4 || dbl) |
| cnt |= ICH_PCM_4; |
| else if (runtime->channels == 6) |
| cnt |= ICH_PCM_6; |
| else if (runtime->channels == 8) |
| cnt |= ICH_PCM_8; |
| if (chip->device_type == DEVICE_NFORCE) { |
| /* reset to 2ch once to keep the 6 channel data in alignment, |
| * to start from Front Left always |
| */ |
| if (cnt & ICH_PCM_246_MASK) { |
| iputdword(chip, ICHREG(GLOB_CNT), cnt & ~ICH_PCM_246_MASK); |
| spin_unlock_irq(&chip->reg_lock); |
| msleep(50); /* grrr... */ |
| spin_lock_irq(&chip->reg_lock); |
| } |
| } else if (chip->device_type == DEVICE_INTEL_ICH4) { |
| if (runtime->sample_bits > 16) |
| cnt |= ICH_PCM_20BIT; |
| } |
| iputdword(chip, ICHREG(GLOB_CNT), cnt); |
| break; |
| } |
| spin_unlock_irq(&chip->reg_lock); |
| } |
| |
| static int snd_intel8x0_pcm_prepare(struct snd_pcm_substream *substream) |
| { |
| struct intel8x0 *chip = snd_pcm_substream_chip(substream); |
| struct snd_pcm_runtime *runtime = substream->runtime; |
| struct ichdev *ichdev = get_ichdev(substream); |
| |
| ichdev->physbuf = runtime->dma_addr; |
| ichdev->size = snd_pcm_lib_buffer_bytes(substream); |
| ichdev->fragsize = snd_pcm_lib_period_bytes(substream); |
| if (ichdev->ichd == ICHD_PCMOUT) { |
| snd_intel8x0_setup_pcm_out(chip, runtime); |
| if (chip->device_type == DEVICE_INTEL_ICH4) |
| ichdev->pos_shift = (runtime->sample_bits > 16) ? 2 : 1; |
| } |
| snd_intel8x0_setup_periods(chip, ichdev); |
| ichdev->prepared = 1; |
| return 0; |
| } |
| |
| static snd_pcm_uframes_t snd_intel8x0_pcm_pointer(struct snd_pcm_substream *substream) |
| { |
| struct intel8x0 *chip = snd_pcm_substream_chip(substream); |
| struct ichdev *ichdev = get_ichdev(substream); |
| size_t ptr1, ptr; |
| int civ, timeout = 10; |
| unsigned int position; |
| |
| spin_lock(&chip->reg_lock); |
| do { |
| civ = igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV); |
| ptr1 = igetword(chip, ichdev->reg_offset + ichdev->roff_picb); |
| position = ichdev->position; |
| if (ptr1 == 0) { |
| udelay(10); |
| continue; |
| } |
| if (civ != igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV)) |
| continue; |
| |
| /* IO read operation is very expensive inside virtual machine |
| * as it is emulated. The probability that subsequent PICB read |
| * will return different result is high enough to loop till |
| * timeout here. |
| * Same CIV is strict enough condition to be sure that PICB |
| * is valid inside VM on emulated card. */ |
| if (chip->inside_vm) |
| break; |
| if (ptr1 == igetword(chip, ichdev->reg_offset + ichdev->roff_picb)) |
| break; |
| } while (timeout--); |
| ptr = ichdev->last_pos; |
| if (ptr1 != 0) { |
| ptr1 <<= ichdev->pos_shift; |
| ptr = ichdev->fragsize1 - ptr1; |
| ptr += position; |
| if (ptr < ichdev->last_pos) { |
| unsigned int pos_base, last_base; |
| pos_base = position / ichdev->fragsize1; |
| last_base = ichdev->last_pos / ichdev->fragsize1; |
| /* another sanity check; ptr1 can go back to full |
| * before the base position is updated |
| */ |
| if (pos_base == last_base) |
| ptr = ichdev->last_pos; |
| } |
| } |
| ichdev->last_pos = ptr; |
| spin_unlock(&chip->reg_lock); |
| if (ptr >= ichdev->size) |
| return 0; |
| return bytes_to_frames(substream->runtime, ptr); |
| } |
| |
| static const struct snd_pcm_hardware snd_intel8x0_stream = |
| { |
| .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | |
| SNDRV_PCM_INFO_BLOCK_TRANSFER | |
| SNDRV_PCM_INFO_MMAP_VALID | |
| SNDRV_PCM_INFO_PAUSE | |
| SNDRV_PCM_INFO_RESUME), |
| .formats = SNDRV_PCM_FMTBIT_S16_LE, |
| .rates = SNDRV_PCM_RATE_48000, |
| .rate_min = 48000, |
| .rate_max = 48000, |
| .channels_min = 2, |
| .channels_max = 2, |
| .buffer_bytes_max = 128 * 1024, |
| .period_bytes_min = 32, |
| .period_bytes_max = 128 * 1024, |
| .periods_min = 1, |
| .periods_max = 1024, |
| .fifo_size = 0, |
| }; |
| |
| static const unsigned int channels4[] = { |
| 2, 4, |
| }; |
| |
| static const struct snd_pcm_hw_constraint_list hw_constraints_channels4 = { |
| .count = ARRAY_SIZE(channels4), |
| .list = channels4, |
| .mask = 0, |
| }; |
| |
| static const unsigned int channels6[] = { |
| 2, 4, 6, |
| }; |
| |
| static const struct snd_pcm_hw_constraint_list hw_constraints_channels6 = { |
| .count = ARRAY_SIZE(channels6), |
| .list = channels6, |
| .mask = 0, |
| }; |
| |
| static const unsigned int channels8[] = { |
| 2, 4, 6, 8, |
| }; |
| |
| static const struct snd_pcm_hw_constraint_list hw_constraints_channels8 = { |
| .count = ARRAY_SIZE(channels8), |
| .list = channels8, |
| .mask = 0, |
| }; |
| |
| static int snd_intel8x0_pcm_open(struct snd_pcm_substream *substream, struct ichdev *ichdev) |
| { |
| struct intel8x0 *chip = snd_pcm_substream_chip(substream); |
| struct snd_pcm_runtime *runtime = substream->runtime; |
| int err; |
| |
| ichdev->substream = substream; |
| runtime->hw = snd_intel8x0_stream; |
| runtime->hw.rates = ichdev->pcm->rates; |
| snd_pcm_limit_hw_rates(runtime); |
| if (chip->device_type == DEVICE_SIS) { |
| runtime->hw.buffer_bytes_max = 64*1024; |
| runtime->hw.period_bytes_max = 64*1024; |
| } |
| err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); |
| if (err < 0) |
| return err; |
| runtime->private_data = ichdev; |
| return 0; |
| } |
| |
| static int snd_intel8x0_playback_open(struct snd_pcm_substream *substream) |
| { |
| struct intel8x0 *chip = snd_pcm_substream_chip(substream); |
| struct snd_pcm_runtime *runtime = substream->runtime; |
| int err; |
| |
| err = snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCMOUT]); |
| if (err < 0) |
| return err; |
| |
| if (chip->multi8) { |
| runtime->hw.channels_max = 8; |
| snd_pcm_hw_constraint_list(runtime, 0, |
| SNDRV_PCM_HW_PARAM_CHANNELS, |
| &hw_constraints_channels8); |
| } else if (chip->multi6) { |
| runtime->hw.channels_max = 6; |
| snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, |
| &hw_constraints_channels6); |
| } else if (chip->multi4) { |
| runtime->hw.channels_max = 4; |
| snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, |
| &hw_constraints_channels4); |
| } |
| if (chip->dra) { |
| snd_ac97_pcm_double_rate_rules(runtime); |
| } |
| if (chip->smp20bit) { |
| runtime->hw.formats |= SNDRV_PCM_FMTBIT_S32_LE; |
| snd_pcm_hw_constraint_msbits(runtime, 0, 32, 20); |
| } |
| return 0; |
| } |
| |
| static int snd_intel8x0_playback_close(struct snd_pcm_substream *substream) |
| { |
| struct intel8x0 *chip = snd_pcm_substream_chip(substream); |
| |
| chip->ichd[ICHD_PCMOUT].substream = NULL; |
| return 0; |
| } |
| |
| static int snd_intel8x0_capture_open(struct snd_pcm_substream *substream) |
| { |
| struct intel8x0 *chip = snd_pcm_substream_chip(substream); |
| |
| return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCMIN]); |
| } |
| |
| static int snd_intel8x0_capture_close(struct snd_pcm_substream *substream) |
| { |
| struct intel8x0 *chip = snd_pcm_substream_chip(substream); |
| |
| chip->ichd[ICHD_PCMIN].substream = NULL; |
| return 0; |
| } |
| |
| static int snd_intel8x0_mic_open(struct snd_pcm_substream *substream) |
| { |
| struct intel8x0 *chip = snd_pcm_substream_chip(substream); |
| |
| return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_MIC]); |
| } |
| |
| static int snd_intel8x0_mic_close(struct snd_pcm_substream *substream) |
| { |
| struct intel8x0 *chip = snd_pcm_substream_chip(substream); |
| |
| chip->ichd[ICHD_MIC].substream = NULL; |
| return 0; |
| } |
| |
| static int snd_intel8x0_mic2_open(struct snd_pcm_substream *substream) |
| { |
| struct intel8x0 *chip = snd_pcm_substream_chip(substream); |
| |
| return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_MIC2]); |
| } |
| |
| static int snd_intel8x0_mic2_close(struct snd_pcm_substream *substream) |
| { |
| struct intel8x0 *chip = snd_pcm_substream_chip(substream); |
| |
| chip->ichd[ICHD_MIC2].substream = NULL; |
| return 0; |
| } |
| |
| static int snd_intel8x0_capture2_open(struct snd_pcm_substream *substream) |
| { |
| struct intel8x0 *chip = snd_pcm_substream_chip(substream); |
| |
| return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCM2IN]); |
| } |
| |
| static int snd_intel8x0_capture2_close(struct snd_pcm_substream *substream) |
| { |
| struct intel8x0 *chip = snd_pcm_substream_chip(substream); |
| |
| chip->ichd[ICHD_PCM2IN].substream = NULL; |
| return 0; |
| } |
| |
| static int snd_intel8x0_spdif_open(struct snd_pcm_substream *substream) |
| { |
| struct intel8x0 *chip = snd_pcm_substream_chip(substream); |
| int idx = chip->device_type == DEVICE_NFORCE ? NVD_SPBAR : ICHD_SPBAR; |
| |
| return snd_intel8x0_pcm_open(substream, &chip->ichd[idx]); |
| } |
| |
| static int snd_intel8x0_spdif_close(struct snd_pcm_substream *substream) |
| { |
| struct intel8x0 *chip = snd_pcm_substream_chip(substream); |
| int idx = chip->device_type == DEVICE_NFORCE ? NVD_SPBAR : ICHD_SPBAR; |
| |
| chip->ichd[idx].substream = NULL; |
| return 0; |
| } |
| |
| static int snd_intel8x0_ali_ac97spdifout_open(struct snd_pcm_substream *substream) |
| { |
| struct intel8x0 *chip = snd_pcm_substream_chip(substream); |
| unsigned int val; |
| |
| spin_lock_irq(&chip->reg_lock); |
| val = igetdword(chip, ICHREG(ALI_INTERFACECR)); |
| val |= ICH_ALI_IF_AC97SP; |
| iputdword(chip, ICHREG(ALI_INTERFACECR), val); |
| /* also needs to set ALI_SC_CODEC_SPDF correctly */ |
| spin_unlock_irq(&chip->reg_lock); |
| |
| return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_AC97SPDIFOUT]); |
| } |
| |
| static int snd_intel8x0_ali_ac97spdifout_close(struct snd_pcm_substream *substream) |
| { |
| struct intel8x0 *chip = snd_pcm_substream_chip(substream); |
| unsigned int val; |
| |
| chip->ichd[ALID_AC97SPDIFOUT].substream = NULL; |
| spin_lock_irq(&chip->reg_lock); |
| val = igetdword(chip, ICHREG(ALI_INTERFACECR)); |
| val &= ~ICH_ALI_IF_AC97SP; |
| iputdword(chip, ICHREG(ALI_INTERFACECR), val); |
| spin_unlock_irq(&chip->reg_lock); |
| |
| return 0; |
| } |
| |
| #if 0 // NYI |
| static int snd_intel8x0_ali_spdifin_open(struct snd_pcm_substream *substream) |
| { |
| struct intel8x0 *chip = snd_pcm_substream_chip(substream); |
| |
| return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_SPDIFIN]); |
| } |
| |
| static int snd_intel8x0_ali_spdifin_close(struct snd_pcm_substream *substream) |
| { |
| struct intel8x0 *chip = snd_pcm_substream_chip(substream); |
| |
| chip->ichd[ALID_SPDIFIN].substream = NULL; |
| return 0; |
| } |
| |
| static int snd_intel8x0_ali_spdifout_open(struct snd_pcm_substream *substream) |
| { |
| struct intel8x0 *chip = snd_pcm_substream_chip(substream); |
| |
| return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_SPDIFOUT]); |
| } |
| |
| static int snd_intel8x0_ali_spdifout_close(struct snd_pcm_substream *substream) |
| { |
| struct intel8x0 *chip = snd_pcm_substream_chip(substream); |
| |
| chip->ichd[ALID_SPDIFOUT].substream = NULL; |
| return 0; |
| } |
| #endif |
| |
| static const struct snd_pcm_ops snd_intel8x0_playback_ops = { |
| .open = snd_intel8x0_playback_open, |
| .close = snd_intel8x0_playback_close, |
| .hw_params = snd_intel8x0_hw_params, |
| .hw_free = snd_intel8x0_hw_free, |
| .prepare = snd_intel8x0_pcm_prepare, |
| .trigger = snd_intel8x0_pcm_trigger, |
| .pointer = snd_intel8x0_pcm_pointer, |
| }; |
| |
| static const struct snd_pcm_ops snd_intel8x0_capture_ops = { |
| .open = snd_intel8x0_capture_open, |
| .close = snd_intel8x0_capture_close, |
| .hw_params = snd_intel8x0_hw_params, |
| .hw_free = snd_intel8x0_hw_free, |
| .prepare = snd_intel8x0_pcm_prepare, |
| .trigger = snd_intel8x0_pcm_trigger, |
| .pointer = snd_intel8x0_pcm_pointer, |
| }; |
| |
| static const struct snd_pcm_ops snd_intel8x0_capture_mic_ops = { |
| .open = snd_intel8x0_mic_open, |
| .close = snd_intel8x0_mic_close, |
| .hw_params = snd_intel8x0_hw_params, |
| .hw_free = snd_intel8x0_hw_free, |
| .prepare = snd_intel8x0_pcm_prepare, |
| .trigger = snd_intel8x0_pcm_trigger, |
| .pointer = snd_intel8x0_pcm_pointer, |
| }; |
| |
| static const struct snd_pcm_ops snd_intel8x0_capture_mic2_ops = { |
| .open = snd_intel8x0_mic2_open, |
| .close = snd_intel8x0_mic2_close, |
| .hw_params = snd_intel8x0_hw_params, |
| .hw_free = snd_intel8x0_hw_free, |
| .prepare = snd_intel8x0_pcm_prepare, |
| .trigger = snd_intel8x0_pcm_trigger, |
| .pointer = snd_intel8x0_pcm_pointer, |
| }; |
| |
| static const struct snd_pcm_ops snd_intel8x0_capture2_ops = { |
| .open = snd_intel8x0_capture2_open, |
| .close = snd_intel8x0_capture2_close, |
| .hw_params = snd_intel8x0_hw_params, |
| .hw_free = snd_intel8x0_hw_free, |
| .prepare = snd_intel8x0_pcm_prepare, |
| .trigger = snd_intel8x0_pcm_trigger, |
| .pointer = snd_intel8x0_pcm_pointer, |
| }; |
| |
| static const struct snd_pcm_ops snd_intel8x0_spdif_ops = { |
| .open = snd_intel8x0_spdif_open, |
| .close = snd_intel8x0_spdif_close, |
| .hw_params = snd_intel8x0_hw_params, |
| .hw_free = snd_intel8x0_hw_free, |
| .prepare = snd_intel8x0_pcm_prepare, |
| .trigger = snd_intel8x0_pcm_trigger, |
| .pointer = snd_intel8x0_pcm_pointer, |
| }; |
| |
| static const struct snd_pcm_ops snd_intel8x0_ali_playback_ops = { |
| .open = snd_intel8x0_playback_open, |
| .close = snd_intel8x0_playback_close, |
| .hw_params = snd_intel8x0_hw_params, |
| .hw_free = snd_intel8x0_hw_free, |
| .prepare = snd_intel8x0_pcm_prepare, |
| .trigger = snd_intel8x0_ali_trigger, |
| .pointer = snd_intel8x0_pcm_pointer, |
| }; |
| |
| static const struct snd_pcm_ops snd_intel8x0_ali_capture_ops = { |
| .open = snd_intel8x0_capture_open, |
| .close = snd_intel8x0_capture_close, |
| .hw_params = snd_intel8x0_hw_params, |
| .hw_free = snd_intel8x0_hw_free, |
| .prepare = snd_intel8x0_pcm_prepare, |
| .trigger = snd_intel8x0_ali_trigger, |
| .pointer = snd_intel8x0_pcm_pointer, |
| }; |
| |
| static const struct snd_pcm_ops snd_intel8x0_ali_capture_mic_ops = { |
| .open = snd_intel8x0_mic_open, |
| .close = snd_intel8x0_mic_close, |
| .hw_params = snd_intel8x0_hw_params, |
| .hw_free = snd_intel8x0_hw_free, |
| .prepare = snd_intel8x0_pcm_prepare, |
| .trigger = snd_intel8x0_ali_trigger, |
| .pointer = snd_intel8x0_pcm_pointer, |
| }; |
| |
| static const struct snd_pcm_ops snd_intel8x0_ali_ac97spdifout_ops = { |
| .open = snd_intel8x0_ali_ac97spdifout_open, |
| .close = snd_intel8x0_ali_ac97spdifout_close, |
| .hw_params = snd_intel8x0_hw_params, |
| .hw_free = snd_intel8x0_hw_free, |
| .prepare = snd_intel8x0_pcm_prepare, |
| .trigger = snd_intel8x0_ali_trigger, |
| .pointer = snd_intel8x0_pcm_pointer, |
| }; |
| |
| #if 0 // NYI |
| static struct snd_pcm_ops snd_intel8x0_ali_spdifin_ops = { |
| .open = snd_intel8x0_ali_spdifin_open, |
| .close = snd_intel8x0_ali_spdifin_close, |
| .hw_params = snd_intel8x0_hw_params, |
| .hw_free = snd_intel8x0_hw_free, |
| .prepare = snd_intel8x0_pcm_prepare, |
| .trigger = snd_intel8x0_pcm_trigger, |
| .pointer = snd_intel8x0_pcm_pointer, |
| }; |
| |
| static struct snd_pcm_ops snd_intel8x0_ali_spdifout_ops = { |
| .open = snd_intel8x0_ali_spdifout_open, |
| .close = snd_intel8x0_ali_spdifout_close, |
| .hw_params = snd_intel8x0_hw_params, |
| .hw_free = snd_intel8x0_hw_free, |
| .prepare = snd_intel8x0_pcm_prepare, |
| .trigger = snd_intel8x0_pcm_trigger, |
| .pointer = snd_intel8x0_pcm_pointer, |
| }; |
| #endif // NYI |
| |
| struct ich_pcm_table { |
| char *suffix; |
| const struct snd_pcm_ops *playback_ops; |
| const struct snd_pcm_ops *capture_ops; |
| size_t prealloc_size; |
| size_t prealloc_max_size; |
| int ac97_idx; |
| }; |
| |
| #define intel8x0_dma_type(chip) \ |
| ((chip)->fix_nocache ? SNDRV_DMA_TYPE_DEV_UC : SNDRV_DMA_TYPE_DEV) |
| |
| static int snd_intel8x0_pcm1(struct intel8x0 *chip, int device, |
| const struct ich_pcm_table *rec) |
| { |
| struct snd_pcm *pcm; |
| int err; |
| char name[32]; |
| |
| if (rec->suffix) |
| sprintf(name, "Intel ICH - %s", rec->suffix); |
| else |
| strcpy(name, "Intel ICH"); |
| err = snd_pcm_new(chip->card, name, device, |
| rec->playback_ops ? 1 : 0, |
| rec->capture_ops ? 1 : 0, &pcm); |
| if (err < 0) |
| return err; |
| |
| if (rec->playback_ops) |
| snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, rec->playback_ops); |
| if (rec->capture_ops) |
| snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, rec->capture_ops); |
| |
| pcm->private_data = chip; |
| pcm->info_flags = 0; |
| if (rec->suffix) |
| sprintf(pcm->name, "%s - %s", chip->card->shortname, rec->suffix); |
| else |
| strcpy(pcm->name, chip->card->shortname); |
| chip->pcm[device] = pcm; |
| |
| snd_pcm_set_managed_buffer_all(pcm, intel8x0_dma_type(chip), |
| &chip->pci->dev, |
| rec->prealloc_size, rec->prealloc_max_size); |
| |
| if (rec->playback_ops && |
| rec->playback_ops->open == snd_intel8x0_playback_open) { |
| struct snd_pcm_chmap *chmap; |
| int chs = 2; |
| if (chip->multi8) |
| chs = 8; |
| else if (chip->multi6) |
| chs = 6; |
| else if (chip->multi4) |
| chs = 4; |
| err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK, |
| snd_pcm_alt_chmaps, chs, 0, |
| &chmap); |
| if (err < 0) |
| return err; |
| chmap->channel_mask = SND_PCM_CHMAP_MASK_2468; |
| chip->ac97[0]->chmaps[SNDRV_PCM_STREAM_PLAYBACK] = chmap; |
| } |
| |
| return 0; |
| } |
| |
| static const struct ich_pcm_table intel_pcms[] = { |
| { |
| .playback_ops = &snd_intel8x0_playback_ops, |
| .capture_ops = &snd_intel8x0_capture_ops, |
| .prealloc_size = 64 * 1024, |
| .prealloc_max_size = 128 * 1024, |
| }, |
| { |
| .suffix = "MIC ADC", |
| .capture_ops = &snd_intel8x0_capture_mic_ops, |
| .prealloc_size = 0, |
| .prealloc_max_size = 128 * 1024, |
| .ac97_idx = ICHD_MIC, |
| }, |
| { |
| .suffix = "MIC2 ADC", |
| .capture_ops = &snd_intel8x0_capture_mic2_ops, |
| .prealloc_size = 0, |
| .prealloc_max_size = 128 * 1024, |
| .ac97_idx = ICHD_MIC2, |
| }, |
| { |
| .suffix = "ADC2", |
| .capture_ops = &snd_intel8x0_capture2_ops, |
| .prealloc_size = 0, |
| .prealloc_max_size = 128 * 1024, |
| .ac97_idx = ICHD_PCM2IN, |
| }, |
| { |
| .suffix = "IEC958", |
| .playback_ops = &snd_intel8x0_spdif_ops, |
| .prealloc_size = 64 * 1024, |
| .prealloc_max_size = 128 * 1024, |
| .ac97_idx = ICHD_SPBAR, |
| }, |
| }; |
| |
| static const struct ich_pcm_table nforce_pcms[] = { |
| { |
| .playback_ops = &snd_intel8x0_playback_ops, |
| .capture_ops = &snd_intel8x0_capture_ops, |
| .prealloc_size = 64 * 1024, |
| .prealloc_max_size = 128 * 1024, |
| }, |
| { |
| .suffix = "MIC ADC", |
| .capture_ops = &snd_intel8x0_capture_mic_ops, |
| .prealloc_size = 0, |
| .prealloc_max_size = 128 * 1024, |
| .ac97_idx = NVD_MIC, |
| }, |
| { |
| .suffix = "IEC958", |
| .playback_ops = &snd_intel8x0_spdif_ops, |
| .prealloc_size = 64 * 1024, |
| .prealloc_max_size = 128 * 1024, |
| .ac97_idx = NVD_SPBAR, |
| }, |
| }; |
| |
| static const struct ich_pcm_table ali_pcms[] = { |
| { |
| .playback_ops = &snd_intel8x0_ali_playback_ops, |
| .capture_ops = &snd_intel8x0_ali_capture_ops, |
| .prealloc_size = 64 * 1024, |
| .prealloc_max_size = 128 * 1024, |
| }, |
| { |
| .suffix = "MIC ADC", |
| .capture_ops = &snd_intel8x0_ali_capture_mic_ops, |
| .prealloc_size = 0, |
| .prealloc_max_size = 128 * 1024, |
| .ac97_idx = ALID_MIC, |
| }, |
| { |
| .suffix = "IEC958", |
| .playback_ops = &snd_intel8x0_ali_ac97spdifout_ops, |
| /* .capture_ops = &snd_intel8x0_ali_spdifin_ops, */ |
| .prealloc_size = 64 * 1024, |
| .prealloc_max_size = 128 * 1024, |
| .ac97_idx = ALID_AC97SPDIFOUT, |
| }, |
| #if 0 // NYI |
| { |
| .suffix = "HW IEC958", |
| .playback_ops = &snd_intel8x0_ali_spdifout_ops, |
| .prealloc_size = 64 * 1024, |
| .prealloc_max_size = 128 * 1024, |
| }, |
| #endif |
| }; |
| |
| static int snd_intel8x0_pcm(struct intel8x0 *chip) |
| { |
| int i, tblsize, device, err; |
| const struct ich_pcm_table *tbl, *rec; |
| |
| switch (chip->device_type) { |
| case DEVICE_INTEL_ICH4: |
| tbl = intel_pcms; |
| tblsize = ARRAY_SIZE(intel_pcms); |
| if (spdif_aclink) |
| tblsize--; |
| break; |
| case DEVICE_NFORCE: |
| tbl = nforce_pcms; |
| tblsize = ARRAY_SIZE(nforce_pcms); |
| if (spdif_aclink) |
| tblsize--; |
| break; |
| case DEVICE_ALI: |
| tbl = ali_pcms; |
| tblsize = ARRAY_SIZE(ali_pcms); |
| break; |
| default: |
| tbl = intel_pcms; |
| tblsize = 2; |
| break; |
| } |
| |
| device = 0; |
| for (i = 0; i < tblsize; i++) { |
| rec = tbl + i; |
| if (i > 0 && rec->ac97_idx) { |
| /* activate PCM only when associated AC'97 codec */ |
| if (! chip->ichd[rec->ac97_idx].pcm) |
| continue; |
| } |
| err = snd_intel8x0_pcm1(chip, device, rec); |
| if (err < 0) |
| return err; |
| device++; |
| } |
| |
| chip->pcm_devs = device; |
| return 0; |
| } |
| |
| |
| /* |
| * Mixer part |
| */ |
| |
| static void snd_intel8x0_mixer_free_ac97_bus(struct snd_ac97_bus *bus) |
| { |
| struct intel8x0 *chip = bus->private_data; |
| chip->ac97_bus = NULL; |
| } |
| |
| static void snd_intel8x0_mixer_free_ac97(struct snd_ac97 *ac97) |
| { |
| struct intel8x0 *chip = ac97->private_data; |
| chip->ac97[ac97->num] = NULL; |
| } |
| |
| static const struct ac97_pcm ac97_pcm_defs[] = { |
| /* front PCM */ |
| { |
| .exclusive = 1, |
| .r = { { |
| .slots = (1 << AC97_SLOT_PCM_LEFT) | |
| (1 << AC97_SLOT_PCM_RIGHT) | |
| (1 << AC97_SLOT_PCM_CENTER) | |
| (1 << AC97_SLOT_PCM_SLEFT) | |
| (1 << AC97_SLOT_PCM_SRIGHT) | |
| (1 << AC97_SLOT_LFE) |
| }, |
| { |
| .slots = (1 << AC97_SLOT_PCM_LEFT) | |
| (1 << AC97_SLOT_PCM_RIGHT) | |
| (1 << AC97_SLOT_PCM_LEFT_0) | |
| (1 << AC97_SLOT_PCM_RIGHT_0) |
| } |
| } |
| }, |
| /* PCM IN #1 */ |
| { |
| .stream = 1, |
| .exclusive = 1, |
| .r = { { |
| .slots = (1 << AC97_SLOT_PCM_LEFT) | |
| (1 << AC97_SLOT_PCM_RIGHT) |
| } |
| } |
| }, |
| /* MIC IN #1 */ |
| { |
| .stream = 1, |
| .exclusive = 1, |
| .r = { { |
| .slots = (1 << AC97_SLOT_MIC) |
| } |
| } |
| }, |
| /* S/PDIF PCM */ |
| { |
| .exclusive = 1, |
| .spdif = 1, |
| .r = { { |
| .slots = (1 << AC97_SLOT_SPDIF_LEFT2) | |
| (1 << AC97_SLOT_SPDIF_RIGHT2) |
| } |
| } |
| }, |
| /* PCM IN #2 */ |
| { |
| .stream = 1, |
| .exclusive = 1, |
| .r = { { |
| .slots = (1 << AC97_SLOT_PCM_LEFT) | |
| (1 << AC97_SLOT_PCM_RIGHT) |
| } |
| } |
| }, |
| /* MIC IN #2 */ |
| { |
| .stream = 1, |
| .exclusive = 1, |
| .r = { { |
| .slots = (1 << AC97_SLOT_MIC) |
| } |
| } |
| }, |
| }; |
| |
| static const struct ac97_quirk ac97_quirks[] = { |
| { |
| .subvendor = 0x0e11, |
| .subdevice = 0x000e, |
| .name = "Compaq Deskpro EN", /* AD1885 */ |
| .type = AC97_TUNE_HP_ONLY |
| }, |
| { |
| .subvendor = 0x0e11, |
| .subdevice = 0x008a, |
| .name = "Compaq Evo W4000", /* AD1885 */ |
| .type = AC97_TUNE_HP_ONLY |
| }, |
| { |
| .subvendor = 0x0e11, |
| .subdevice = 0x00b8, |
| .name = "Compaq Evo D510C", |
| .type = AC97_TUNE_HP_ONLY |
| }, |
| { |
| .subvendor = 0x0e11, |
| .subdevice = 0x0860, |
| .name = "HP/Compaq nx7010", |
| .type = AC97_TUNE_MUTE_LED |
| }, |
| { |
| .subvendor = 0x1014, |
| .subdevice = 0x0534, |
| .name = "ThinkPad X31", |
| .type = AC97_TUNE_INV_EAPD |
| }, |
| { |
| .subvendor = 0x1014, |
| .subdevice = 0x1f00, |
| .name = "MS-9128", |
| .type = AC97_TUNE_ALC_JACK |
| }, |
| { |
| .subvendor = 0x1014, |
| .subdevice = 0x0267, |
| .name = "IBM NetVista A30p", /* AD1981B */ |
| .type = AC97_TUNE_HP_ONLY |
| }, |
| { |
| .subvendor = 0x1025, |
| .subdevice = 0x0082, |
| .name = "Acer Travelmate 2310", |
| .type = AC97_TUNE_HP_ONLY |
| }, |
| { |
| .subvendor = 0x1025, |
| .subdevice = 0x0083, |
| .name = "Acer Aspire 3003LCi", |
| .type = AC97_TUNE_HP_ONLY |
| }, |
| { |
| .subvendor = 0x1028, |
| .subdevice = 0x00d8, |
| .name = "Dell Precision 530", /* AD1885 */ |
| .type = AC97_TUNE_HP_ONLY |
| }, |
| { |
| .subvendor = 0x1028, |
| .subdevice = 0x010d, |
| .name = "Dell", /* which model? AD1885 */ |
| .type = AC97_TUNE_HP_ONLY |
| }, |
| { |
| .subvendor = 0x1028, |
| .subdevice = 0x0126, |
| .name = "Dell Optiplex GX260", /* AD1981A */ |
| .type = AC97_TUNE_HP_ONLY |
| }, |
| { |
| .subvendor = 0x1028, |
| .subdevice = 0x012c, |
| .name = "Dell Precision 650", /* AD1981A */ |
| .type = AC97_TUNE_HP_ONLY |
| }, |
| { |
| .subvendor = 0x1028, |
| .subdevice = 0x012d, |
| .name = "Dell Precision 450", /* AD1981B*/ |
| .type = AC97_TUNE_HP_ONLY |
| }, |
| { |
| .subvendor = 0x1028, |
| .subdevice = 0x0147, |
| .name = "Dell", /* which model? AD1981B*/ |
| .type = AC97_TUNE_HP_ONLY |
| }, |
| { |
| .subvendor = 0x1028, |
| .subdevice = 0x0151, |
| .name = "Dell Optiplex GX270", /* AD1981B */ |
| .type = AC97_TUNE_HP_ONLY |
| }, |
| { |
| .subvendor = 0x1028, |
| .subdevice = 0x014e, |
| .name = "Dell D800", /* STAC9750/51 */ |
| .type = AC97_TUNE_HP_ONLY |
| }, |
| { |
| .subvendor = 0x1028, |
| .subdevice = 0x0163, |
| .name = "Dell Unknown", /* STAC9750/51 */ |
| .type = AC97_TUNE_HP_ONLY |
| }, |
| { |
| .subvendor = 0x1028, |
| .subdevice = 0x016a, |
| .name = "Dell Inspiron 8600", /* STAC9750/51 */ |
| .type = AC97_TUNE_HP_ONLY |
| }, |
| { |
| .subvendor = 0x1028, |
| .subdevice = 0x0182, |
| .name = "Dell Latitude D610", /* STAC9750/51 */ |
| .type = AC97_TUNE_HP_ONLY |
| }, |
| { |
| .subvendor = 0x1028, |
| .subdevice = 0x0186, |
| .name = "Dell Latitude D810", /* cf. Malone #41015 */ |
| .type = AC97_TUNE_HP_MUTE_LED |
| }, |
| { |
| .subvendor = 0x1028, |
| .subdevice = 0x0188, |
| .name = "Dell Inspiron 6000", |
| .type = AC97_TUNE_HP_MUTE_LED /* cf. Malone #41015 */ |
| }, |
| { |
| .subvendor = 0x1028, |
| .subdevice = 0x0189, |
| .name = "Dell Inspiron 9300", |
| .type = AC97_TUNE_HP_MUTE_LED |
| }, |
| { |
| .subvendor = 0x1028, |
| .subdevice = 0x0191, |
| .name = "Dell Inspiron 8600", |
| .type = AC97_TUNE_HP_ONLY |
| }, |
| { |
| .subvendor = 0x103c, |
| .subdevice = 0x006d, |
| .name = "HP zv5000", |
| .type = AC97_TUNE_MUTE_LED /*AD1981B*/ |
| }, |
| { /* FIXME: which codec? */ |
| .subvendor = 0x103c, |
| .subdevice = 0x00c3, |
| .name = "HP xw6000", |
| .type = AC97_TUNE_HP_ONLY |
| }, |
| { |
| .subvendor = 0x103c, |
| .subdevice = 0x088c, |
| .name = "HP nc8000", |
| .type = AC97_TUNE_HP_MUTE_LED |
| }, |
| { |
| .subvendor = 0x103c, |
| .subdevice = 0x0890, |
| .name = "HP nc6000", |
| .type = AC97_TUNE_MUTE_LED |
| }, |
| { |
| .subvendor = 0x103c, |
| .subdevice = 0x129d, |
| .name = "HP xw8000", |
| .type = AC97_TUNE_HP_ONLY |
| }, |
| { |
| .subvendor = 0x103c, |
| .subdevice = 0x0938, |
| .name = "HP nc4200", |
| .type = AC97_TUNE_HP_MUTE_LED |
| }, |
| { |
| .subvendor = 0x103c, |
| .subdevice = 0x099c, |
| .name = "HP nx6110/nc6120", |
| .type = AC97_TUNE_HP_MUTE_LED |
| }, |
| { |
| .subvendor = 0x103c, |
| .subdevice = 0x0944, |
| .name = "HP nc6220", |
| .type = AC97_TUNE_HP_MUTE_LED |
| }, |
| { |
| .subvendor = 0x103c, |
| .subdevice = 0x0934, |
| .name = "HP nc8220", |
| .type = AC97_TUNE_HP_MUTE_LED |
| }, |
| { |
| .subvendor = 0x103c, |
| .subdevice = 0x12f1, |
| .name = "HP xw8200", /* AD1981B*/ |
| .type = AC97_TUNE_HP_ONLY |
| }, |
| { |
| .subvendor = 0x103c, |
| .subdevice = 0x12f2, |
| .name = "HP xw6200", |
| .type = AC97_TUNE_HP_ONLY |
| }, |
| { |
| .subvendor = 0x103c, |
| .subdevice = 0x3008, |
| .name = "HP xw4200", /* AD1981B*/ |
| .type = AC97_TUNE_HP_ONLY |
| }, |
| { |
| .subvendor = 0x104d, |
| .subdevice = 0x8144, |
| .name = "Sony", |
| .type = AC97_TUNE_INV_EAPD |
| }, |
| { |
| .subvendor = 0x104d, |
| .subdevice = 0x8197, |
| .name = "Sony S1XP", |
| .type = AC97_TUNE_INV_EAPD |
| }, |
| { |
| .subvendor = 0x104d, |
| .subdevice = 0x81c0, |
| .name = "Sony VAIO VGN-T350P", /*AD1981B*/ |
| .type = AC97_TUNE_INV_EAPD |
| }, |
| { |
| .subvendor = 0x104d, |
| .subdevice = 0x81c5, |
| .name = "Sony VAIO VGN-B1VP", /*AD1981B*/ |
| .type = AC97_TUNE_INV_EAPD |
| }, |
| { |
| .subvendor = 0x1043, |
| .subdevice = 0x80f3, |
| .name = "ASUS ICH5/AD1985", |
| .type = AC97_TUNE_AD_SHARING |
| }, |
| { |
| .subvendor = 0x10cf, |
| .subdevice = 0x11c3, |
| .name = "Fujitsu-Siemens E4010", |
| .type = AC97_TUNE_HP_ONLY |
| }, |
| { |
| .subvendor = 0x10cf, |
| .subdevice = 0x1225, |
| .name = "Fujitsu-Siemens T3010", |
| .type = AC97_TUNE_HP_ONLY |
| }, |
| { |
| .subvendor = 0x10cf, |
| .subdevice = 0x1253, |
| .name = "Fujitsu S6210", /* STAC9750/51 */ |
| .type = AC97_TUNE_HP_ONLY |
| }, |
| { |
| .subvendor = 0x10cf, |
| .subdevice = 0x127d, |
| .name = "Fujitsu Lifebook P7010", |
| .type = AC97_TUNE_HP_ONLY |
| }, |
| { |
| .subvendor = 0x10cf, |
| .subdevice = 0x127e, |
| .name = "Fujitsu Lifebook C1211D", |
| .type = AC97_TUNE_HP_ONLY |
| }, |
| { |
| .subvendor = 0x10cf, |
| .subdevice = 0x12ec, |
| .name = "Fujitsu-Siemens 4010", |
| .type = AC97_TUNE_HP_ONLY |
| }, |
| { |
| .subvendor = 0x10cf, |
| .subdevice = 0x12f2, |
| .name = "Fujitsu-Siemens Celsius H320", |
| .type = AC97_TUNE_SWAP_HP |
| }, |
| { |
| .subvendor = 0x10f1, |
| .subdevice = 0x2665, |
| .name = "Fujitsu-Siemens Celsius", /* AD1981? */ |
| .type = AC97_TUNE_HP_ONLY |
| }, |
| { |
| .subvendor = 0x10f1, |
| .subdevice = 0x2885, |
| .name = "AMD64 Mobo", /* ALC650 */ |
| .type = AC97_TUNE_HP_ONLY |
| }, |
| { |
| .subvendor = 0x10f1, |
| .subdevice = 0x2895, |
| .name = "Tyan Thunder K8WE", |
| .type = AC97_TUNE_HP_ONLY |
| }, |
| { |
| .subvendor = 0x10f7, |
| .subdevice = 0x834c, |
| .name = "Panasonic CF-R4", |
| .type = AC97_TUNE_HP_ONLY, |
| }, |
| { |
| .subvendor = 0x110a, |
| .subdevice = 0x0056, |
| .name = "Fujitsu-Siemens Scenic", /* AD1981? */ |
| .type = AC97_TUNE_HP_ONLY |
| }, |
| { |
| .subvendor = 0x11d4, |
| .subdevice = 0x5375, |
| .name = "ADI AD1985 (discrete)", |
| .type = AC97_TUNE_HP_ONLY |
| }, |
| { |
| .subvendor = 0x1462, |
| .subdevice = 0x5470, |
| .name = "MSI P4 ATX 645 Ultra", |
| .type = AC97_TUNE_HP_ONLY |
| }, |
| { |
| .subvendor = 0x161f, |
| .subdevice = 0x202f, |
| .name = "Gateway M520", |
| .type = AC97_TUNE_INV_EAPD |
| }, |
| { |
| .subvendor = 0x161f, |
| .subdevice = 0x203a, |
| .name = "Gateway 4525GZ", /* AD1981B */ |
| .type = AC97_TUNE_INV_EAPD |
| }, |
| { |
| .subvendor = 0x1734, |
| .subdevice = 0x0088, |
| .name = "Fujitsu-Siemens D1522", /* AD1981 */ |
| .type = AC97_TUNE_HP_ONLY |
| }, |
| { |
| .subvendor = 0x8086, |
| .subdevice = 0x2000, |
| .mask = 0xfff0, |
| .name = "Intel ICH5/AD1985", |
| .type = AC97_TUNE_AD_SHARING |
| }, |
| { |
| .subvendor = 0x8086, |
| .subdevice = 0x4000, |
| .mask = 0xfff0, |
| .name = "Intel ICH5/AD1985", |
| .type = AC97_TUNE_AD_SHARING |
| }, |
| { |
| .subvendor = 0x8086, |
| .subdevice = 0x4856, |
| .name = "Intel D845WN (82801BA)", |
| .type = AC97_TUNE_SWAP_HP |
| }, |
| { |
| .subvendor = 0x8086, |
| .subdevice = 0x4d44, |
| .name = "Intel D850EMV2", /* AD1885 */ |
| .type = AC97_TUNE_HP_ONLY |
| }, |
| { |
| .subvendor = 0x8086, |
| .subdevice = 0x4d56, |
| .name = "Intel ICH/AD1885", |
| .type = AC97_TUNE_HP_ONLY |
| }, |
| { |
| .subvendor = 0x8086, |
| .subdevice = 0x6000, |
| .mask = 0xfff0, |
| .name = "Intel ICH5/AD1985", |
| .type = AC97_TUNE_AD_SHARING |
| }, |
| { |
| .subvendor = 0x8086, |
| .subdevice = 0xe000, |
| .mask = 0xfff0, |
| .name = "Intel ICH5/AD1985", |
| .type = AC97_TUNE_AD_SHARING |
| }, |
| #if 0 /* FIXME: this seems wrong on most boards */ |
| { |
| .subvendor = 0x8086, |
| .subdevice = 0xa000, |
| .mask = 0xfff0, |
| .name = "Intel ICH5/AD1985", |
| .type = AC97_TUNE_HP_ONLY |
| }, |
| #endif |
| { } /* terminator */ |
| }; |
| |
| static int snd_intel8x0_mixer(struct intel8x0 *chip, int ac97_clock, |
| const char *quirk_override) |
| { |
| struct snd_ac97_bus *pbus; |
| struct snd_ac97_template ac97; |
| int err; |
| unsigned int i, codecs; |
| unsigned int glob_sta = 0; |
| const struct snd_ac97_bus_ops *ops; |
| static const struct snd_ac97_bus_ops standard_bus_ops = { |
| .write = snd_intel8x0_codec_write, |
| .read = snd_intel8x0_codec_read, |
| }; |
| static const struct snd_ac97_bus_ops ali_bus_ops = { |
| .write = snd_intel8x0_ali_codec_write, |
| .read = snd_intel8x0_ali_codec_read, |
| }; |
| |
| chip->spdif_idx = -1; /* use PCMOUT (or disabled) */ |
| if (!spdif_aclink) { |
| switch (chip->device_type) { |
| case DEVICE_NFORCE: |
| chip->spdif_idx = NVD_SPBAR; |
| break; |
| case DEVICE_ALI: |
| chip->spdif_idx = ALID_AC97SPDIFOUT; |
| break; |
| case DEVICE_INTEL_ICH4: |
| chip->spdif_idx = ICHD_SPBAR; |
| break; |
| } |
| } |
| |
| chip->in_ac97_init = 1; |
| |
| memset(&ac97, 0, sizeof(ac97)); |
| ac97.private_data = chip; |
| ac97.private_free = snd_intel8x0_mixer_free_ac97; |
| ac97.scaps = AC97_SCAP_SKIP_MODEM | AC97_SCAP_POWER_SAVE; |
| if (chip->xbox) |
| ac97.scaps |= AC97_SCAP_DETECT_BY_VENDOR; |
| if (chip->device_type != DEVICE_ALI) { |
| glob_sta = igetdword(chip, ICHREG(GLOB_STA)); |
| ops = &standard_bus_ops; |
| chip->in_sdin_init = 1; |
| codecs = 0; |
| for (i = 0; i < chip->max_codecs; i++) { |
| if (! (glob_sta & chip->codec_bit[i])) |
| continue; |
| if (chip->device_type == DEVICE_INTEL_ICH4) { |
| snd_intel8x0_codec_read_test(chip, codecs); |
| chip->ac97_sdin[codecs] = |
| igetbyte(chip, ICHREG(SDM)) & ICH_LDI_MASK; |
| if (snd_BUG_ON(chip->ac97_sdin[codecs] >= 3)) |
| chip->ac97_sdin[codecs] = 0; |
| } else |
| chip->ac97_sdin[codecs] = i; |
| codecs++; |
| } |
| chip->in_sdin_init = 0; |
| if (! codecs) |
| codecs = 1; |
| } else { |
| ops = &ali_bus_ops; |
| codecs = 1; |
| /* detect the secondary codec */ |
| for (i = 0; i < 100; i++) { |
| unsigned int reg = igetdword(chip, ICHREG(ALI_RTSR)); |
| if (reg & 0x40) { |
| codecs = 2; |
| break; |
| } |
| iputdword(chip, ICHREG(ALI_RTSR), reg | 0x40); |
| udelay(1); |
| } |
| } |
| err = snd_ac97_bus(chip->card, 0, ops, chip, &pbus); |
| if (err < 0) |
| goto __err; |
| pbus->private_free = snd_intel8x0_mixer_free_ac97_bus; |
| if (ac97_clock >= 8000 && ac97_clock <= 48000) |
| pbus->clock = ac97_clock; |
| /* FIXME: my test board doesn't work well with VRA... */ |
| if (chip->device_type == DEVICE_ALI) |
| pbus->no_vra = 1; |
| else |
| pbus->dra = 1; |
| chip->ac97_bus = pbus; |
| chip->ncodecs = codecs; |
| |
| ac97.pci = chip->pci; |
| for (i = 0; i < codecs; i++) { |
| ac97.num = i; |
| err = snd_ac97_mixer(pbus, &ac97, &chip->ac97[i]); |
| if (err < 0) { |
| if (err != -EACCES) |
| dev_err(chip->card->dev, |
| "Unable to initialize codec #%d\n", i); |
| if (i == 0) |
| goto __err; |
| } |
| } |
| /* tune up the primary codec */ |
| snd_ac97_tune_hardware(chip->ac97[0], ac97_quirks, quirk_override); |
| /* enable separate SDINs for ICH4 */ |
| if (chip->device_type == DEVICE_INTEL_ICH4) |
| pbus->isdin = 1; |
| /* find the available PCM streams */ |
| i = ARRAY_SIZE(ac97_pcm_defs); |
| if (chip->device_type != DEVICE_INTEL_ICH4) |
| i -= 2; /* do not allocate PCM2IN and MIC2 */ |
| if (chip->spdif_idx < 0) |
| i--; /* do not allocate S/PDIF */ |
| err = snd_ac97_pcm_assign(pbus, i, ac97_pcm_defs); |
| if (err < 0) |
| goto __err; |
| chip->ichd[ICHD_PCMOUT].pcm = &pbus->pcms[0]; |
| chip->ichd[ICHD_PCMIN].pcm = &pbus->pcms[1]; |
| chip->ichd[ICHD_MIC].pcm = &pbus->pcms[2]; |
| if (chip->spdif_idx >= 0) |
| chip->ichd[chip->spdif_idx].pcm = &pbus->pcms[3]; |
| if (chip->device_type == DEVICE_INTEL_ICH4) { |
| chip->ichd[ICHD_PCM2IN].pcm = &pbus->pcms[4]; |
| chip->ichd[ICHD_MIC2].pcm = &pbus->pcms[5]; |
| } |
| /* enable separate SDINs for ICH4 */ |
| if (chip->device_type == DEVICE_INTEL_ICH4) { |
| struct ac97_pcm *pcm = chip->ichd[ICHD_PCM2IN].pcm; |
| u8 tmp = igetbyte(chip, ICHREG(SDM)); |
| tmp &= ~(ICH_DI2L_MASK|ICH_DI1L_MASK); |
| if (pcm) { |
| tmp |= ICH_SE; /* steer enable for multiple SDINs */ |
| tmp |= chip->ac97_sdin[0] << ICH_DI1L_SHIFT; |
| for (i = 1; i < 4; i++) { |
| if (pcm->r[0].codec[i]) { |
| tmp |= chip->ac97_sdin[pcm->r[0].codec[1]->num] << ICH_DI2L_SHIFT; |
| break; |
| } |
| } |
| } else { |
| tmp &= ~ICH_SE; /* steer disable */ |
| } |
| iputbyte(chip, ICHREG(SDM), tmp); |
| } |
| if (pbus->pcms[0].r[0].slots & (1 << AC97_SLOT_PCM_SLEFT)) { |
| chip->multi4 = 1; |
| if (pbus->pcms[0].r[0].slots & (1 << AC97_SLOT_LFE)) { |
| chip->multi6 = 1; |
| if (chip->ac97[0]->flags & AC97_HAS_8CH) |
| chip->multi8 = 1; |
| } |
| } |
| if (pbus->pcms[0].r[1].rslots[0]) { |
| chip->dra = 1; |
| } |
| if (chip->device_type == DEVICE_INTEL_ICH4) { |
| if ((igetdword(chip, ICHREG(GLOB_STA)) & ICH_SAMPLE_CAP) == ICH_SAMPLE_16_20) |
| chip->smp20bit = 1; |
| } |
| if (chip->device_type == DEVICE_NFORCE && !spdif_aclink) { |
| /* 48kHz only */ |
| chip->ichd[chip->spdif_idx].pcm->rates = SNDRV_PCM_RATE_48000; |
| } |
| if (chip->device_type == DEVICE_INTEL_ICH4 && !spdif_aclink) { |
| /* use slot 10/11 for SPDIF */ |
| u32 val; |
| val = igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_PCM_SPDIF_MASK; |
| val |= ICH_PCM_SPDIF_1011; |
| iputdword(chip, ICHREG(GLOB_CNT), val); |
| snd_ac97_update_bits(chip->ac97[0], AC97_EXTENDED_STATUS, 0x03 << 4, 0x03 << 4); |
| } |
| chip->in_ac97_init = 0; |
| return 0; |
| |
| __err: |
| /* clear the cold-reset bit for the next chance */ |
| if (chip->device_type != DEVICE_ALI) |
| iputdword(chip, ICHREG(GLOB_CNT), |
| igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_AC97COLD); |
| return err; |
| } |
| |
| |
| /* |
| * |
| */ |
| |
| static void do_ali_reset(struct intel8x0 *chip) |
| { |
| iputdword(chip, ICHREG(ALI_SCR), ICH_ALI_SC_RESET); |
| iputdword(chip, ICHREG(ALI_FIFOCR1), 0x83838383); |
| iputdword(chip, ICHREG(ALI_FIFOCR2), 0x83838383); |
| iputdword(chip, ICHREG(ALI_FIFOCR3), 0x83838383); |
| iputdword(chip, ICHREG(ALI_INTERFACECR), |
| ICH_ALI_IF_PI|ICH_ALI_IF_PO); |
| iputdword(chip, ICHREG(ALI_INTERRUPTCR), 0x00000000); |
| iputdword(chip, ICHREG(ALI_INTERRUPTSR), 0x00000000); |
| } |
| |
| #ifdef CONFIG_SND_AC97_POWER_SAVE |
| static const struct snd_pci_quirk ich_chip_reset_mode[] = { |
| SND_PCI_QUIRK(0x1014, 0x051f, "Thinkpad R32", 1), |
| { } /* end */ |
| }; |
| |
| static int snd_intel8x0_ich_chip_cold_reset(struct intel8x0 *chip) |
| { |
| unsigned int cnt; |
| /* ACLink on, 2 channels */ |
| |
| if (snd_pci_quirk_lookup(chip->pci, ich_chip_reset_mode)) |
| return -EIO; |
| |
| cnt = igetdword(chip, ICHREG(GLOB_CNT)); |
| cnt &= ~(ICH_ACLINK | ICH_PCM_246_MASK); |
| |
| /* do cold reset - the full ac97 powerdown may leave the controller |
| * in a warm state but actually it cannot communicate with the codec. |
| */ |
| iputdword(chip, ICHREG(GLOB_CNT), cnt & ~ICH_AC97COLD); |
| cnt = igetdword(chip, ICHREG(GLOB_CNT)); |
| udelay(10); |
| iputdword(chip, ICHREG(GLOB_CNT), cnt | ICH_AC97COLD); |
| msleep(1); |
| return 0; |
| } |
| #define snd_intel8x0_ich_chip_can_cold_reset(chip) \ |
| (!snd_pci_quirk_lookup(chip->pci, ich_chip_reset_mode)) |
| #else |
| #define snd_intel8x0_ich_chip_cold_reset(chip) 0 |
| #define snd_intel8x0_ich_chip_can_cold_reset(chip) (0) |
| #endif |
| |
| static int snd_intel8x0_ich_chip_reset(struct intel8x0 *chip) |
| { |
| unsigned long end_time; |
| unsigned int cnt; |
| /* ACLink on, 2 channels */ |
| cnt = igetdword(chip, ICHREG(GLOB_CNT)); |
| cnt &= ~(ICH_ACLINK | ICH_PCM_246_MASK); |
| /* finish cold or do warm reset */ |
| cnt |= (cnt & ICH_AC97COLD) == 0 ? ICH_AC97COLD : ICH_AC97WARM; |
| iputdword(chip, ICHREG(GLOB_CNT), cnt); |
| end_time = (jiffies + (HZ / 4)) + 1; |
| do { |
| if ((igetdword(chip, ICHREG(GLOB_CNT)) & ICH_AC97WARM) == 0) |
| return 0; |
| schedule_timeout_uninterruptible(1); |
| } while (time_after_eq(end_time, jiffies)); |
| dev_err(chip->card->dev, "AC'97 warm reset still in progress? [0x%x]\n", |
| igetdword(chip, ICHREG(GLOB_CNT))); |
| return -EIO; |
| } |
| |
| static int snd_intel8x0_ich_chip_init(struct intel8x0 *chip, int probing) |
| { |
| unsigned long end_time; |
| unsigned int status, nstatus; |
| unsigned int cnt; |
| int err; |
| |
| /* put logic to right state */ |
| /* first clear status bits */ |
| status = ICH_RCS | ICH_MCINT | ICH_POINT | ICH_PIINT; |
| if (chip->device_type == DEVICE_NFORCE) |
| status |= ICH_NVSPINT; |
| cnt = igetdword(chip, ICHREG(GLOB_STA)); |
| iputdword(chip, ICHREG(GLOB_STA), cnt & status); |
| |
| if (snd_intel8x0_ich_chip_can_cold_reset(chip)) |
| err = snd_intel8x0_ich_chip_cold_reset(chip); |
| else |
| err = snd_intel8x0_ich_chip_reset(chip); |
| if (err < 0) |
| return err; |
| |
| if (probing) { |
| /* wait for any codec ready status. |
| * Once it becomes ready it should remain ready |
| * as long as we do not disable the ac97 link. |
| */ |
| end_time = jiffies + HZ; |
| do { |
| status = igetdword(chip, ICHREG(GLOB_STA)) & |
| chip->codec_isr_bits; |
| if (status) |
| break; |
| schedule_timeout_uninterruptible(1); |
| } while (time_after_eq(end_time, jiffies)); |
| if (! status) { |
| /* no codec is found */ |
| dev_err(chip->card->dev, |
| "codec_ready: codec is not ready [0x%x]\n", |
| igetdword(chip, ICHREG(GLOB_STA))); |
| return -EIO; |
| } |
| |
| /* wait for other codecs ready status. */ |
| end_time = jiffies + HZ / 4; |
| while (status != chip->codec_isr_bits && |
| time_after_eq(end_time, jiffies)) { |
| schedule_timeout_uninterruptible(1); |
| status |= igetdword(chip, ICHREG(GLOB_STA)) & |
| chip->codec_isr_bits; |
| } |
| |
| } else { |
| /* resume phase */ |
| int i; |
| status = 0; |
| for (i = 0; i < chip->ncodecs; i++) |
| if (chip->ac97[i]) |
| status |= chip->codec_bit[chip->ac97_sdin[i]]; |
| /* wait until all the probed codecs are ready */ |
| end_time = jiffies + HZ; |
| do { |
| nstatus = igetdword(chip, ICHREG(GLOB_STA)) & |
| chip->codec_isr_bits; |
| if (status == nstatus) |
| break; |
| schedule_timeout_uninterruptible(1); |
| } while (time_after_eq(end_time, jiffies)); |
| } |
| |
| if (chip->device_type == DEVICE_SIS) { |
| /* unmute the output on SIS7012 */ |
| iputword(chip, 0x4c, igetword(chip, 0x4c) | 1); |
| } |
| if (chip->device_type == DEVICE_NFORCE && !spdif_aclink) { |
| /* enable SPDIF interrupt */ |
| unsigned int val; |
| pci_read_config_dword(chip->pci, 0x4c, &val); |
| val |= 0x1000000; |
| pci_write_config_dword(chip->pci, 0x4c, val); |
| } |
| return 0; |
| } |
| |
| static int snd_intel8x0_ali_chip_init(struct intel8x0 *chip, int probing) |
| { |
| u32 reg; |
| int i = 0; |
| |
| reg = igetdword(chip, ICHREG(ALI_SCR)); |
| if ((reg & 2) == 0) /* Cold required */ |
| reg |= 2; |
| else |
| reg |= 1; /* Warm */ |
| reg &= ~0x80000000; /* ACLink on */ |
| iputdword(chip, ICHREG(ALI_SCR), reg); |
| |
| for (i = 0; i < HZ / 2; i++) { |
| if (! (igetdword(chip, ICHREG(ALI_INTERRUPTSR)) & ALI_INT_GPIO)) |
| goto __ok; |
| schedule_timeout_uninterruptible(1); |
| } |
| dev_err(chip->card->dev, "AC'97 reset failed.\n"); |
| if (probing) |
| return -EIO; |
| |
| __ok: |
| for (i = 0; i < HZ / 2; i++) { |
| reg = igetdword(chip, ICHREG(ALI_RTSR)); |
| if (reg & 0x80) /* primary codec */ |
| break; |
| iputdword(chip, ICHREG(ALI_RTSR), reg | 0x80); |
| schedule_timeout_uninterruptible(1); |
| } |
| |
| do_ali_reset(chip); |
| return 0; |
| } |
| |
| static int snd_intel8x0_chip_init(struct intel8x0 *chip, int probing) |
| { |
| unsigned int i, timeout; |
| int err; |
| |
| if (chip->device_type != DEVICE_ALI) { |
| err = snd_intel8x0_ich_chip_init(chip, probing); |
| if (err < 0) |
| return err; |
| iagetword(chip, 0); /* clear semaphore flag */ |
| } else { |
| err = snd_intel8x0_ali_chip_init(chip, probing); |
| if (err < 0) |
| return err; |
| } |
| |
| /* disable interrupts */ |
| for (i = 0; i < chip->bdbars_count; i++) |
| iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00); |
| /* reset channels */ |
| for (i = 0; i < chip->bdbars_count; i++) |
| iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS); |
| for (i = 0; i < chip->bdbars_count; i++) { |
| timeout = 100000; |
| while (--timeout != 0) { |
| if ((igetbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset) & ICH_RESETREGS) == 0) |
| break; |
| } |
| if (timeout == 0) |
| dev_err(chip->card->dev, "reset of registers failed?\n"); |
| } |
| /* initialize Buffer Descriptor Lists */ |
| for (i = 0; i < chip->bdbars_count; i++) |
| iputdword(chip, ICH_REG_OFF_BDBAR + chip->ichd[i].reg_offset, |
| chip->ichd[i].bdbar_addr); |
| return 0; |
| } |
| |
| static int snd_intel8x0_free(struct intel8x0 *chip) |
| { |
| unsigned int i; |
| |
| if (chip->irq < 0) |
| goto __hw_end; |
| /* disable interrupts */ |
| for (i = 0; i < chip->bdbars_count; i++) |
| iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00); |
| /* reset channels */ |
| for (i = 0; i < chip->bdbars_count; i++) |
| iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS); |
| if (chip->device_type == DEVICE_NFORCE && !spdif_aclink) { |
| /* stop the spdif interrupt */ |
| unsigned int val; |
| pci_read_config_dword(chip->pci, 0x4c, &val); |
| val &= ~0x1000000; |
| pci_write_config_dword(chip->pci, 0x4c, val); |
| } |
| /* --- */ |
| |
| __hw_end: |
| if (chip->irq >= 0) |
| free_irq(chip->irq, chip); |
| if (chip->bdbars.area) |
| snd_dma_free_pages(&chip->bdbars); |
| if (chip->addr) |
| pci_iounmap(chip->pci, chip->addr); |
| if (chip->bmaddr) |
| pci_iounmap(chip->pci, chip->bmaddr); |
| pci_release_regions(chip->pci); |
| pci_disable_device(chip->pci); |
| kfree(chip); |
| return 0; |
| } |
| |
| #ifdef CONFIG_PM_SLEEP |
| /* |
| * power management |
| */ |
| static int intel8x0_suspend(struct device *dev) |
| { |
| struct snd_card *card = dev_get_drvdata(dev); |
| struct intel8x0 *chip = card->private_data; |
| int i; |
| |
| snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); |
| for (i = 0; i < chip->ncodecs; i++) |
| snd_ac97_suspend(chip->ac97[i]); |
| if (chip->device_type == DEVICE_INTEL_ICH4) |
| chip->sdm_saved = igetbyte(chip, ICHREG(SDM)); |
| |
| if (chip->irq >= 0) { |
| free_irq(chip->irq, chip); |
| chip->irq = -1; |
| card->sync_irq = -1; |
| } |
| return 0; |
| } |
| |
| static int intel8x0_resume(struct device *dev) |
| { |
| struct pci_dev *pci = to_pci_dev(dev); |
| struct snd_card *card = dev_get_drvdata(dev); |
| struct intel8x0 *chip = card->private_data; |
| int i; |
| |
| snd_intel8x0_chip_init(chip, 0); |
| if (request_irq(pci->irq, snd_intel8x0_interrupt, |
| IRQF_SHARED, KBUILD_MODNAME, chip)) { |
| dev_err(dev, "unable to grab IRQ %d, disabling device\n", |
| pci->irq); |
| snd_card_disconnect(card); |
| return -EIO; |
| } |
| chip->irq = pci->irq; |
| card->sync_irq = chip->irq; |
| |
| /* re-initialize mixer stuff */ |
| if (chip->device_type == DEVICE_INTEL_ICH4 && !spdif_aclink) { |
| /* enable separate SDINs for ICH4 */ |
| iputbyte(chip, ICHREG(SDM), chip->sdm_saved); |
| /* use slot 10/11 for SPDIF */ |
| iputdword(chip, ICHREG(GLOB_CNT), |
| (igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_PCM_SPDIF_MASK) | |
| ICH_PCM_SPDIF_1011); |
| } |
| |
| for (i = 0; i < chip->ncodecs; i++) |
| snd_ac97_resume(chip->ac97[i]); |
| |
| /* resume status */ |
| for (i = 0; i < chip->bdbars_count; i++) { |
| struct ichdev *ichdev = &chip->ichd[i]; |
| unsigned long port = ichdev->reg_offset; |
| if (! ichdev->substream || ! ichdev->suspended) |
| continue; |
| if (ichdev->ichd == ICHD_PCMOUT) |
| snd_intel8x0_setup_pcm_out(chip, ichdev->substream->runtime); |
| iputdword(chip, port + ICH_REG_OFF_BDBAR, ichdev->bdbar_addr); |
| iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi); |
| iputbyte(chip, port + ICH_REG_OFF_CIV, ichdev->civ); |
| iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI); |
| } |
| |
| snd_power_change_state(card, SNDRV_CTL_POWER_D0); |
| return 0; |
| } |
| |
| static SIMPLE_DEV_PM_OPS(intel8x0_pm, intel8x0_suspend, intel8x0_resume); |
| #define INTEL8X0_PM_OPS &intel8x0_pm |
| #else |
| #define INTEL8X0_PM_OPS NULL |
| #endif /* CONFIG_PM_SLEEP */ |
| |
| #define INTEL8X0_TESTBUF_SIZE 32768 /* enough large for one shot */ |
| |
| static void intel8x0_measure_ac97_clock(struct intel8x0 *chip) |
| { |
| struct snd_pcm_substream *subs; |
| struct ichdev *ichdev; |
| unsigned long port; |
| unsigned long pos, pos1, t; |
| int civ, timeout = 1000, attempt = 1; |
| ktime_t start_time, stop_time; |
| |
| if (chip->ac97_bus->clock != 48000) |
| return; /* specified in module option */ |
| |
| __again: |
| subs = chip->pcm[0]->streams[0].substream; |
| if (! subs || subs->dma_buffer.bytes < INTEL8X0_TESTBUF_SIZE) { |
| dev_warn(chip->card->dev, |
| "no playback buffer allocated - aborting measure ac97 clock\n"); |
| return; |
| } |
| ichdev = &chip->ichd[ICHD_PCMOUT]; |
| ichdev->physbuf = subs->dma_buffer.addr; |
| ichdev->size = ichdev->fragsize = INTEL8X0_TESTBUF_SIZE; |
| ichdev->substream = NULL; /* don't process interrupts */ |
| |
| /* set rate */ |
| if (snd_ac97_set_rate(chip->ac97[0], AC97_PCM_FRONT_DAC_RATE, 48000) < 0) { |
| dev_err(chip->card->dev, "cannot set ac97 rate: clock = %d\n", |
| chip->ac97_bus->clock); |
| return; |
| } |
| snd_intel8x0_setup_periods(chip, ichdev); |
| port = ichdev->reg_offset; |
| spin_lock_irq(&chip->reg_lock); |
| chip->in_measurement = 1; |
| /* trigger */ |
| if (chip->device_type != DEVICE_ALI) |
| iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE | ICH_STARTBM); |
| else { |
| iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE); |
| iputdword(chip, ICHREG(ALI_DMACR), 1 << ichdev->ali_slot); |
| } |
| start_time = ktime_get(); |
| spin_unlock_irq(&chip->reg_lock); |
| msleep(50); |
| spin_lock_irq(&chip->reg_lock); |
| /* check the position */ |
| do { |
| civ = igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV); |
| pos1 = igetword(chip, ichdev->reg_offset + ichdev->roff_picb); |
| if (pos1 == 0) { |
| udelay(10); |
| continue; |
| } |
| if (civ == igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV) && |
| pos1 == igetword(chip, ichdev->reg_offset + ichdev->roff_picb)) |
| break; |
| } while (timeout--); |
| if (pos1 == 0) { /* oops, this value is not reliable */ |
| pos = 0; |
| } else { |
| pos = ichdev->fragsize1; |
| pos -= pos1 << ichdev->pos_shift; |
| pos += ichdev->position; |
| } |
| chip->in_measurement = 0; |
| stop_time = ktime_get(); |
| /* stop */ |
| if (chip->device_type == DEVICE_ALI) { |
| iputdword(chip, ICHREG(ALI_DMACR), 1 << (ichdev->ali_slot + 16)); |
| iputbyte(chip, port + ICH_REG_OFF_CR, 0); |
| while (igetbyte(chip, port + ICH_REG_OFF_CR)) |
| ; |
| } else { |
| iputbyte(chip, port + ICH_REG_OFF_CR, 0); |
| while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH)) |
| ; |
| } |
| iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS); |
| spin_unlock_irq(&chip->reg_lock); |
| |
| if (pos == 0) { |
| dev_err(chip->card->dev, |
| "measure - unreliable DMA position..\n"); |
| __retry: |
| if (attempt < 3) { |
| msleep(300); |
| attempt++; |
| goto __again; |
| } |
| goto __end; |
| } |
| |
| pos /= 4; |
| t = ktime_us_delta(stop_time, start_time); |
| dev_info(chip->card->dev, |
| "%s: measured %lu usecs (%lu samples)\n", __func__, t, pos); |
| if (t == 0) { |
| dev_err(chip->card->dev, "?? calculation error..\n"); |
| goto __retry; |
| } |
| pos *= 1000; |
| pos = (pos / t) * 1000 + ((pos % t) * 1000) / t; |
| if (pos < 40000 || pos >= 60000) { |
| /* abnormal value. hw problem? */ |
| dev_info(chip->card->dev, "measured clock %ld rejected\n", pos); |
| goto __retry; |
| } else if (pos > 40500 && pos < 41500) |
| /* first exception - 41000Hz reference clock */ |
| chip->ac97_bus->clock = 41000; |
| else if (pos > 43600 && pos < 44600) |
| /* second exception - 44100HZ reference clock */ |
| chip->ac97_bus->clock = 44100; |
| else if (pos < 47500 || pos > 48500) |
| /* not 48000Hz, tuning the clock.. */ |
| chip->ac97_bus->clock = (chip->ac97_bus->clock * 48000) / pos; |
| __end: |
| dev_info(chip->card->dev, "clocking to %d\n", chip->ac97_bus->clock); |
| snd_ac97_update_power(chip->ac97[0], AC97_PCM_FRONT_DAC_RATE, 0); |
| } |
| |
| static const struct snd_pci_quirk intel8x0_clock_list[] = { |
| SND_PCI_QUIRK(0x0e11, 0x008a, "AD1885", 41000), |
| SND_PCI_QUIRK(0x1014, 0x0581, "AD1981B", 48000), |
| SND_PCI_QUIRK(0x1028, 0x00be, "AD1885", 44100), |
| SND_PCI_QUIRK(0x1028, 0x0177, "AD1980", 48000), |
| SND_PCI_QUIRK(0x1028, 0x01ad, "AD1981B", 48000), |
| SND_PCI_QUIRK(0x1043, 0x80f3, "AD1985", 48000), |
| { } /* terminator */ |
| }; |
| |
| static int intel8x0_in_clock_list(struct intel8x0 *chip) |
| { |
| struct pci_dev *pci = chip->pci; |
| const struct snd_pci_quirk *wl; |
| |
| wl = snd_pci_quirk_lookup(pci, intel8x0_clock_list); |
| if (!wl) |
| return 0; |
| dev_info(chip->card->dev, "allow list rate for %04x:%04x is %i\n", |
| pci->subsystem_vendor, pci->subsystem_device, wl->value); |
| chip->ac97_bus->clock = wl->value; |
| return 1; |
| } |
| |
| static void snd_intel8x0_proc_read(struct snd_info_entry * entry, |
| struct snd_info_buffer *buffer) |
| { |
| struct intel8x0 *chip = entry->private_data; |
| unsigned int tmp; |
| |
| snd_iprintf(buffer, "Intel8x0\n\n"); |
| if (chip->device_type == DEVICE_ALI) |
| return; |
| tmp = igetdword(chip, ICHREG(GLOB_STA)); |
| snd_iprintf(buffer, "Global control : 0x%08x\n", igetdword(chip, ICHREG(GLOB_CNT))); |
| snd_iprintf(buffer, "Global status : 0x%08x\n", tmp); |
| if (chip->device_type == DEVICE_INTEL_ICH4) |
| snd_iprintf(buffer, "SDM : 0x%08x\n", igetdword(chip, ICHREG(SDM))); |
| snd_iprintf(buffer, "AC'97 codecs ready :"); |
| if (tmp & chip->codec_isr_bits) { |
| int i; |
| static const char *codecs[3] = { |
| "primary", "secondary", "tertiary" |
| }; |
| for (i = 0; i < chip->max_codecs; i++) |
| if (tmp & chip->codec_bit[i]) |
| snd_iprintf(buffer, " %s", codecs[i]); |
| } else |
| snd_iprintf(buffer, " none"); |
| snd_iprintf(buffer, "\n"); |
| if (chip->device_type == DEVICE_INTEL_ICH4 || |
| chip->device_type == DEVICE_SIS) |
| snd_iprintf(buffer, "AC'97 codecs SDIN : %i %i %i\n", |
| chip->ac97_sdin[0], |
| chip->ac97_sdin[1], |
| chip->ac97_sdin[2]); |
| } |
| |
| static void snd_intel8x0_proc_init(struct intel8x0 *chip) |
| { |
| snd_card_ro_proc_new(chip->card, "intel8x0", chip, |
| snd_intel8x0_proc_read); |
| } |
| |
| static int snd_intel8x0_dev_free(struct snd_device *device) |
| { |
| struct intel8x0 *chip = device->device_data; |
| return snd_intel8x0_free(chip); |
| } |
| |
| struct ich_reg_info { |
| unsigned int int_sta_mask; |
| unsigned int offset; |
| }; |
| |
| static const unsigned int ich_codec_bits[3] = { |
| ICH_PCR, ICH_SCR, ICH_TCR |
| }; |
| static const unsigned int sis_codec_bits[3] = { |
| ICH_PCR, ICH_SCR, ICH_SIS_TCR |
| }; |
| |
| static int snd_intel8x0_inside_vm(struct pci_dev *pci) |
| { |
| int result = inside_vm; |
| char *msg = NULL; |
| |
| /* check module parameter first (override detection) */ |
| if (result >= 0) { |
| msg = result ? "enable (forced) VM" : "disable (forced) VM"; |
| goto fini; |
| } |
| |
| /* check for known (emulated) devices */ |
|