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4022 4023 4024 4025 4026 4027 4028 4029 4030 4031 4032 4033 4034 4035 4036 4037 4038 4039 4040 4041 4042 4043 4044 4045 4046 4047 4048 4049 4050 4051 4052 4053 4054 4055 4056 4057 4058 4059 4060 4061 4062 4063 4064 4065 4066 4067 4068 4069 4070 4071 4072 4073 4074 4075 4076 4077 4078 4079 4080 4081 4082 4083 4084 4085 4086 4087 4088 4089 4090 4091 4092 4093 4094 4095 4096 4097 4098 4099 4100 4101 4102 4103 4104 4105 4106 4107 4108 4109 4110 4111 4112 4113 4114 4115 4116 4117 4118 4119 4120 4121 4122 4123 4124 4125 4126 4127 4128 4129 4130 4131 4132 4133 4134 4135 4136 4137 4138 4139 4140 4141 4142 4143 4144 4145 4146 4147 4148 4149 4150 4151 4152 4153 4154 4155 4156 4157 4158 4159 4160 4161 4162 4163 4164 4165 4166 4167 4168 4169 4170 4171 4172 4173 4174 4175 4176 4177 4178 4179 4180 4181 4182 4183 4184 4185 4186 4187 4188 4189 4190 4191 4192 4193 4194 4195 4196 4197 4198 4199 4200 4201 | /* * OSS driver for Linux 2.4.x for * * Trident 4D-Wave * SiS 7018 * ALi 5451 * Tvia/IGST CyberPro 5050 * * Driver: Alan Cox <alan@redhat.com> * * Built from: * Low level code: <audio@tridentmicro.com> from ALSA * Framework: Thomas Sailer <sailer@ife.ee.ethz.ch> * Extended by: Zach Brown <zab@redhat.com> * * Hacked up by: * Aaron Holtzman <aholtzma@ess.engr.uvic.ca> * Ollie Lho <ollie@sis.com.tw> SiS 7018 Audio Core Support * Ching-Ling Lee <cling-li@ali.com.tw> ALi 5451 Audio Core Support * Matt Wu <mattwu@acersoftech.com.cn> ALi 5451 Audio Core Support * Peter Wächtler <pwaechtler@loewe-komp.de> CyberPro5050 support * * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * * History * v0.14.9c * August 10 2001 Peter Wächtler <pwaechtler@loewe-komp.de> * added support for Tvia (formerly Integraphics/IGST) CyberPro5050 * this chip is often found in settop boxes (combined video+audio) * v0.14.9b * Switch to static inline not extern inline (gcc 3) * v0.14.9a * Aug 6 2001 Alan Cox * 0.14.9 crashed on rmmod due to a timer/bh left running. Simplified * the existing logic (the BH doesnt help as ac97 is lock_irqsave) * and used del_timer_sync to clean up * Fixed a problem where the ALi change broke my generic card * v0.14.9 * Jul 10 2001 Matt Wu * Add H/W Volume Control * v0.14.8a * July 7 2001 Alan Cox * Moved Matt Wu's ac97 register cache into the card structure * v0.14.8 * Apr 30 2001 Matt Wu * Set EBUF1 and EBUF2 to still mode * Add dc97/ac97 reset function * Fix power management: ali_restore_regs * unreleased * Mar 09 2001 Matt Wu * Add cache for ac97 access * v0.14.7 * Feb 06 2001 Matt Wu * Fix ac97 initialization * Fix bug: an extra tail will be played when playing * Jan 05 2001 Matt Wu * Implement multi-channels and S/PDIF in support for ALi 1535+ * v0.14.6 * Nov 1 2000 Ching-Ling Lee * Fix the bug of memory leak when switching 5.1-channels to 2 channels. * Add lock protection into dynamic changing format of data. * Oct 18 2000 Ching-Ling Lee * 5.1-channels support for ALi * June 28 2000 Ching-Ling Lee * S/PDIF out/in(playback/record) support for ALi 1535+, using /proc to be selected by user * Simple Power Management support for ALi * v0.14.5 May 23 2000 Ollie Lho * Misc bug fix from the Net * v0.14.4 May 20 2000 Aaron Holtzman * Fix kfree'd memory access in release * Fix race in open while looking for a free virtual channel slot * remove open_wait wq (which appears to be unused) * v0.14.3 May 10 2000 Ollie Lho * fixed a small bug in trident_update_ptr, xmms 1.0.1 no longer uses 100% CPU * v0.14.2 Mar 29 2000 Ching-Ling Lee * Add clear to silence advance in trident_update_ptr * fix invalid data of the end of the sound * v0.14.1 Mar 24 2000 Ching-Ling Lee * ALi 5451 support added, playback and recording O.K. * ALi 5451 originally developed and structured based on sonicvibes, and * suggested to merge into this file by Alan Cox. * v0.14 Mar 15 2000 Ollie Lho * 5.1 channel output support with channel binding. What's the Matrix ? * v0.13.1 Mar 10 2000 Ollie Lho * few minor bugs on dual codec support, needs more testing * v0.13 Mar 03 2000 Ollie Lho * new pci_* for 2.4 kernel, back ported to 2.2 * v0.12 Feb 23 2000 Ollie Lho * Preliminary Recording support * v0.11.2 Feb 19 2000 Ollie Lho * removed incomplete full-dulplex support * v0.11.1 Jan 28 2000 Ollie Lho * small bug in setting sample rate for 4d-nx (reported by Aaron) * v0.11 Jan 27 2000 Ollie Lho * DMA bug, scheduler latency, second try * v0.10 Jan 24 2000 Ollie Lho * DMA bug fixed, found kernel scheduling problem * v0.09 Jan 20 2000 Ollie Lho * Clean up of channel register access routine (prepare for channel binding) * v0.08 Jan 14 2000 Ollie Lho * Isolation of AC97 codec code * v0.07 Jan 13 2000 Ollie Lho * Get rid of ugly old low level access routines (e.g. CHRegs.lp****) * v0.06 Jan 11 2000 Ollie Lho * Preliminary support for dual (more ?) AC97 codecs * v0.05 Jan 08 2000 Luca Montecchiani <m.luca@iname.com> * adapt to 2.3.x new __setup/__init call * v0.04 Dec 31 1999 Ollie Lho * Multiple Open, using Middle Loop Interrupt to smooth playback * v0.03 Dec 24 1999 Ollie Lho * mem leak in prog_dmabuf and dealloc_dmabuf removed * v0.02 Dec 15 1999 Ollie Lho * SiS 7018 support added, playback O.K. * v0.01 Alan Cox et. al. * Initial Release in kernel 2.3.30, does not work * * ToDo * Clean up of low level channel register access code. (done) * Fix the bug on dma buffer management in update_ptr, read/write, drain_dac (done) * Dual AC97 codecs support (done) * Recording support (done) * Mmap support * "Channel Binding" ioctl extension (done) * new pci device driver interface for 2.4 kernel (done) * * Lock order (high->low) * lock - hardware lock * open_sem - guard opens * sem - guard dmabuf, write re-entry etc */ #include <linux/config.h> #include <linux/module.h> #include <linux/version.h> #include <linux/string.h> #include <linux/ctype.h> #include <linux/ioport.h> #include <linux/sched.h> #include <linux/delay.h> #include <linux/sound.h> #include <linux/slab.h> #include <linux/soundcard.h> #include <linux/pci.h> #include <asm/io.h> #include <asm/dma.h> #include <linux/init.h> #include <linux/poll.h> #include <linux/spinlock.h> #include <linux/smp_lock.h> #include <linux/ac97_codec.h> #include <linux/wrapper.h> #include <asm/uaccess.h> #include <asm/hardirq.h> #include <linux/bitops.h> #include <linux/proc_fs.h> #include <linux/interrupt.h> #if defined CONFIG_ALPHA_NAUTILUS || CONFIG_ALPHA_GENERIC #include <asm/hwrpb.h> #endif #include "trident.h" #include <linux/pm.h> #define DRIVER_VERSION "0.14.9c" /* magic numbers to protect our data structures */ #define TRIDENT_CARD_MAGIC 0x5072696E /* "Prin" */ #define TRIDENT_STATE_MAGIC 0x63657373 /* "cess" */ #define TRIDENT_DMA_MASK 0x3fffffff /* DMA buffer mask for pci_alloc_consist */ #define NR_HW_CH 32 /* maxinum nuber of AC97 codecs connected, AC97 2.0 defined 4, but 7018 and 4D-NX only have 2 SDATA_IN lines (currently) */ #define NR_AC97 2 /* minor number of /dev/swmodem (temporary, experimental) */ #define SND_DEV_SWMODEM 7 static const unsigned ali_multi_channels_5_1[] = { /*ALI_SURR_LEFT_CHANNEL, ALI_SURR_RIGHT_CHANNEL,*/ ALI_CENTER_CHANNEL, ALI_LEF_CHANNEL, ALI_SURR_LEFT_CHANNEL, ALI_SURR_RIGHT_CHANNEL}; static const unsigned sample_size[] = { 1, 2, 2, 4 }; static const unsigned sample_shift[] = { 0, 1, 1, 2 }; static const char invalid_magic[] = KERN_CRIT "trident: invalid magic value in %s\n"; enum { TRIDENT_4D_DX = 0, TRIDENT_4D_NX, SIS_7018, ALI_5451, CYBER5050 }; static char * card_names[] = { "Trident 4DWave DX", "Trident 4DWave NX", "SiS 7018 PCI Audio", "ALi Audio Accelerator", "Tvia/IGST CyberPro 5050" }; static struct pci_device_id trident_pci_tbl [] __devinitdata = { {PCI_VENDOR_ID_TRIDENT, PCI_DEVICE_ID_TRIDENT_4DWAVE_DX, PCI_ANY_ID, PCI_ANY_ID, 0, 0, TRIDENT_4D_DX}, {PCI_VENDOR_ID_TRIDENT, PCI_DEVICE_ID_TRIDENT_4DWAVE_NX, PCI_ANY_ID, PCI_ANY_ID, 0, 0, TRIDENT_4D_NX}, {PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_7018, PCI_ANY_ID, PCI_ANY_ID, 0, 0, SIS_7018}, {PCI_VENDOR_ID_ALI, PCI_DEVICE_ID_ALI_5451, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ALI_5451}, { PCI_VENDOR_ID_INTERG, PCI_DEVICE_ID_INTERG_5050, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CYBER5050}, {0,} }; MODULE_DEVICE_TABLE (pci, trident_pci_tbl); /* "software" or virtual channel, an instance of opened /dev/dsp */ struct trident_state { unsigned int magic; struct trident_card *card; /* Card info */ /* file mode */ mode_t open_mode; /* virtual channel number */ int virt; struct dmabuf { /* wave sample stuff */ unsigned int rate; unsigned char fmt, enable; /* hardware channel */ struct trident_channel *channel; /* OSS buffer management stuff */ void *rawbuf; dma_addr_t dma_handle; unsigned buforder; unsigned numfrag; unsigned fragshift; /* our buffer acts like a circular ring */ unsigned hwptr; /* where dma last started, updated by update_ptr */ unsigned swptr; /* where driver last clear/filled, updated by read/write */ int count; /* bytes to be comsumed or been generated by dma machine */ unsigned total_bytes; /* total bytes dmaed by hardware */ unsigned error; /* number of over/underruns */ wait_queue_head_t wait; /* put process on wait queue when no more space in buffer */ /* redundant, but makes calculations easier */ unsigned fragsize; unsigned dmasize; unsigned fragsamples; /* OSS stuff */ unsigned mapped:1; unsigned ready:1; unsigned endcleared:1; unsigned update_flag; unsigned ossfragshift; int ossmaxfrags; unsigned subdivision; } dmabuf; /* 5.1channels */ struct trident_state *other_states[4]; int multi_channels_adjust_count; unsigned chans_num; unsigned fmt_flag:1; /* Guard against mmap/write/read races */ struct semaphore sem; }; /* hardware channels */ struct trident_channel { int num; /* channel number */ u32 lba; /* Loop Begine Address, where dma buffer starts */ u32 eso; /* End Sample Offset, wehre dma buffer ends (in the unit of samples) */ u32 delta; /* delta value, sample rate / 48k for playback, 48k/sample rate for recording */ u16 attribute; /* control where PCM data go and come */ u16 fm_vol; u32 control; /* signed/unsigned, 8/16 bits, mono/stereo */ }; struct trident_pcm_bank_address { u32 start; u32 stop; u32 aint; u32 aint_en; }; static struct trident_pcm_bank_address bank_a_addrs = { T4D_START_A, T4D_STOP_A, T4D_AINT_A, T4D_AINTEN_A }; static struct trident_pcm_bank_address bank_b_addrs = { T4D_START_B, T4D_STOP_B, T4D_AINT_B, T4D_AINTEN_B }; struct trident_pcm_bank { /* register addresses to control bank operations */ struct trident_pcm_bank_address *addresses; /* each bank has 32 channels */ u32 bitmap; /* channel allocation bitmap */ struct trident_channel channels[32]; }; struct trident_card { unsigned int magic; /* We keep trident cards in a linked list */ struct trident_card *next; /* single open lock mechanism, only used for recording */ struct semaphore open_sem; /* The trident has a certain amount of cross channel interaction so we use a single per card lock */ spinlock_t lock; /* PCI device stuff */ struct pci_dev * pci_dev; u16 pci_id; u8 revision; /* soundcore stuff */ int dev_audio; /* structures for abstraction of hardware facilities, codecs, banks and channels*/ struct ac97_codec *ac97_codec[NR_AC97]; struct trident_pcm_bank banks[NR_BANKS]; struct trident_state *states[NR_HW_CH]; /* hardware resources */ unsigned long iobase; u32 irq; /* Function support */ struct trident_channel *(*alloc_pcm_channel)(struct trident_card *); struct trident_channel *(*alloc_rec_pcm_channel)(struct trident_card *); void (*free_pcm_channel)(struct trident_card *, unsigned int chan); void (*address_interrupt)(struct trident_card *); /* Added by Matt Wu 01-05-2001 for spdif in */ int multi_channel_use_count; int rec_channel_use_count; u16 mixer_regs[64][NR_AC97]; /* Made card local by Alan */ int mixer_regs_ready; /* Added for hardware volume control */ int hwvolctl; struct timer_list timer; }; /* table to map from CHANNELMASK to channel attribute for SiS 7018 */ static u16 mask2attr [] = { PCM_LR, PCM_LR, SURR_LR, CENTER_LFE, HSET, MIC, MODEM_LINE1, MODEM_LINE2, I2S_LR, SPDIF_LR }; /* table to map from channel attribute to CHANNELMASK for SiS 7018 */ static int attr2mask [] = { DSP_BIND_MODEM1, DSP_BIND_MODEM2, DSP_BIND_FRONT, DSP_BIND_HANDSET, DSP_BIND_I2S, DSP_BIND_CENTER_LFE, DSP_BIND_SURR, DSP_BIND_SPDIF }; /* Added by Matt Wu 01-05-2001 for spdif in */ static int ali_close_multi_channels(void); static void ali_delay(struct trident_card *card,int interval); static void ali_detect_spdif_rate(struct trident_card *card); static void ali_ac97_write(struct ac97_codec *codec, u8 reg, u16 val); static u16 ali_ac97_read(struct ac97_codec *codec, u8 reg); static struct trident_card *devs; static void trident_ac97_set(struct ac97_codec *codec, u8 reg, u16 val); static u16 trident_ac97_get(struct ac97_codec *codec, u8 reg); static int trident_open_mixdev(struct inode *inode, struct file *file); static int trident_ioctl_mixdev(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg); static void ali_ac97_set(struct trident_card *card, int secondary, u8 reg, u16 val); static u16 ali_ac97_get(struct trident_card *card, int secondary, u8 reg); static void ali_set_spdif_out_rate(struct trident_card *card, unsigned int rate); static void ali_enable_special_channel(struct trident_state *stat); static struct trident_channel *ali_alloc_rec_pcm_channel(struct trident_card *card); static struct trident_channel *ali_alloc_pcm_channel(struct trident_card *card); static void ali_restore_regs(struct trident_card *card); static void ali_save_regs(struct trident_card *card); static int trident_suspend(struct pci_dev *dev, u32 unused); static int trident_resume(struct pci_dev *dev); static void ali_free_pcm_channel(struct trident_card *card, unsigned int channel); static int ali_setup_multi_channels(struct trident_card *card, int chan_nums); static unsigned int ali_get_spdif_in_rate(struct trident_card *card); static void ali_setup_spdif_in(struct trident_card *card); static void ali_disable_spdif_in(struct trident_card *card); static void ali_disable_special_channel(struct trident_card *card, int ch); static void ali_setup_spdif_out(struct trident_card *card, int flag); static int ali_write_5_1(struct trident_state *state, const char *buffer,int cnt_for_multi_channel, unsigned int *copy_count, unsigned int *state_cnt); static int ali_allocate_other_states_resources(struct trident_state *state, int chan_nums); static void ali_free_other_states_resources(struct trident_state *state); /* save registers for ALi Power Management */ static struct ali_saved_registers { unsigned long global_regs[ALI_GLOBAL_REGS]; unsigned long channel_regs[ALI_CHANNELS][ALI_CHANNEL_REGS]; unsigned mixer_regs[ALI_MIXER_REGS]; } ali_registers; #define seek_offset(dma_ptr, buffer, cnt, offset, copy_count) (dma_ptr) += (offset); \ (buffer) += (offset); \ (cnt) -= (offset); \ (copy_count) += (offset); #define lock_set_fmt(state) {spin_lock_irqsave(&state->card->lock, flags); \ if (state->fmt_flag) { \ spin_unlock_irqrestore(&state->card->lock, flags); \ return -EFAULT; \ } \ state->fmt_flag = 1; \ spin_unlock_irqrestore(&state->card->lock, flags);} #define unlock_set_fmt(state) {spin_lock_irqsave(&state->card->lock, flags); \ state->fmt_flag = 0; \ spin_unlock_irqrestore(&state->card->lock, flags);} static int trident_enable_loop_interrupts(struct trident_card * card) { u32 global_control; global_control = inl(TRID_REG(card, T4D_LFO_GC_CIR)); switch (card->pci_id) { case PCI_DEVICE_ID_SI_7018: global_control |= (ENDLP_IE | MIDLP_IE| BANK_B_EN); break; case PCI_DEVICE_ID_ALI_5451: case PCI_DEVICE_ID_TRIDENT_4DWAVE_DX: case PCI_DEVICE_ID_TRIDENT_4DWAVE_NX: case PCI_DEVICE_ID_INTERG_5050: global_control |= (ENDLP_IE | MIDLP_IE); break; default: return FALSE; } outl(global_control, TRID_REG(card, T4D_LFO_GC_CIR)); #ifdef DEBUG printk("trident: Enable Loop Interrupts, globctl = 0x%08X\n", inl(TRID_REG(card, T4D_LFO_GC_CIR))); #endif return (TRUE); } static int trident_disable_loop_interrupts(struct trident_card * card) { u32 global_control; global_control = inl(TRID_REG(card, T4D_LFO_GC_CIR)); global_control &= ~(ENDLP_IE | MIDLP_IE); outl(global_control, TRID_REG(card, T4D_LFO_GC_CIR)); #ifdef DEBUG printk("trident: Disabled Loop Interrupts, globctl = 0x%08X\n", global_control); #endif return (TRUE); } static void trident_enable_voice_irq(struct trident_card * card, unsigned int channel) { unsigned int mask = 1 << (channel & 0x1f); struct trident_pcm_bank *bank = &card->banks[channel >> 5]; u32 reg, addr = bank->addresses->aint_en; reg = inl(TRID_REG(card, addr)); reg |= mask; outl(reg, TRID_REG(card, addr)); #ifdef DEBUG reg = inl(TRID_REG(card, addr)); printk("trident: enabled IRQ on channel %d, %s = 0x%08x(addr:%X)\n", channel, addr==T4D_AINTEN_B? "AINTEN_B":"AINTEN_A",reg,addr); #endif } static void trident_disable_voice_irq(struct trident_card * card, unsigned int channel) { unsigned int mask = 1 << (channel & 0x1f); struct trident_pcm_bank *bank = &card->banks[channel >> 5]; u32 reg, addr = bank->addresses->aint_en; reg = inl(TRID_REG(card, addr)); reg &= ~mask; outl(reg, TRID_REG(card, addr)); /* Ack the channel in case the interrupt was set before we disable it. */ outl(mask, TRID_REG(card, bank->addresses->aint)); #ifdef DEBUG reg = inl(TRID_REG(card, addr)); printk("trident: disabled IRQ on channel %d, %s = 0x%08x(addr:%X)\n", channel, addr==T4D_AINTEN_B? "AINTEN_B":"AINTEN_A",reg,addr); #endif } static void trident_start_voice(struct trident_card * card, unsigned int channel) { unsigned int mask = 1 << (channel & 0x1f); struct trident_pcm_bank *bank = &card->banks[channel >> 5]; u32 addr = bank->addresses->start; #ifdef DEBUG u32 reg; #endif outl(mask, TRID_REG(card, addr)); #ifdef DEBUG reg = inl(TRID_REG(card, addr)); printk("trident: start voice on channel %d, %s = 0x%08x(addr:%X)\n", channel, addr==T4D_START_B? "START_B":"START_A",reg,addr); #endif } static void trident_stop_voice(struct trident_card * card, unsigned int channel) { unsigned int mask = 1 << (channel & 0x1f); struct trident_pcm_bank *bank = &card->banks[channel >> 5]; u32 addr = bank->addresses->stop; #ifdef DEBUG u32 reg; #endif outl(mask, TRID_REG(card, addr)); #ifdef DEBUG reg = inl(TRID_REG(card, addr)); printk("trident: stop voice on channel %d, %s = 0x%08x(addr:%X)\n", channel, addr==T4D_STOP_B? "STOP_B":"STOP_A",reg,addr); #endif } static u32 trident_get_interrupt_mask (struct trident_card * card, unsigned int channel) { struct trident_pcm_bank *bank = &card->banks[channel]; u32 addr = bank->addresses->aint; return inl(TRID_REG(card, addr)); } static int trident_check_channel_interrupt(struct trident_card * card, unsigned int channel) { unsigned int mask = 1 << (channel & 0x1f); u32 reg = trident_get_interrupt_mask (card, channel >> 5); #ifdef DEBUG if (reg & mask) printk("trident: channel %d has interrupt, %s = 0x%08x\n", channel,reg==T4D_AINT_B? "AINT_B":"AINT_A", reg); #endif return (reg & mask) ? TRUE : FALSE; } static void trident_ack_channel_interrupt(struct trident_card * card, unsigned int channel) { unsigned int mask = 1 << (channel & 0x1f); struct trident_pcm_bank *bank = &card->banks[channel >> 5]; u32 reg, addr = bank->addresses->aint; reg = inl(TRID_REG(card, addr)); reg &= mask; outl(reg, TRID_REG(card, addr)); #ifdef DEBUG reg = inl(TRID_REG(card, T4D_AINT_B)); printk("trident: Ack channel %d interrupt, AINT_B = 0x%08x\n", channel, reg); #endif } static struct trident_channel * trident_alloc_pcm_channel(struct trident_card *card) { struct trident_pcm_bank *bank; int idx; bank = &card->banks[BANK_B]; for (idx = 31; idx >= 0; idx--) { if (!(bank->bitmap & (1 << idx))) { struct trident_channel *channel = &bank->channels[idx]; bank->bitmap |= 1 << idx; channel->num = idx + 32; return channel; } } /* no more free channels available */ printk(KERN_ERR "trident: no more channels available on Bank B.\n"); return NULL; } static void trident_free_pcm_channel(struct trident_card *card, unsigned int channel) { int bank; if (channel < 31 || channel > 63) return; bank = channel >> 5; channel = channel & 0x1f; card->banks[bank].bitmap &= ~(1 << (channel)); } static struct trident_channel * cyber_alloc_pcm_channel(struct trident_card *card) { struct trident_pcm_bank *bank; int idx; /* The cyberpro 5050 has only 32 voices and one bank */ /* .. at least they are not documented (if you want to call that * crap documentation), perhaps broken ? */ bank = &card->banks[BANK_A]; for (idx = 31; idx >= 0; idx--) { if (!(bank->bitmap & (1 << idx))) { struct trident_channel *channel = &bank->channels[idx]; bank->bitmap |= 1 << idx; channel->num = idx; return channel; } } /* no more free channels available */ printk(KERN_ERR "cyberpro5050: no more channels available on Bank A.\n"); return NULL; } static void cyber_free_pcm_channel(struct trident_card *card, unsigned int channel) { if (channel > 31) return; card->banks[BANK_A].bitmap &= ~(1 << (channel)); } static inline void cyber_outidx(int port,int idx,int data) { outb(idx,port); outb(data,port+1); } static inline int cyber_inidx(int port,int idx) { outb(idx,port); return inb(port+1); } static int cyber_init_ritual(struct trident_card *card) { /* some black magic, taken from SDK samples */ /* remove this and nothing will work */ int portDat; int ret = 0; unsigned long flags; /* * Keep interrupts off for the configure - we don't want to * clash with another cyberpro config event */ save_flags(flags); cli(); portDat = cyber_inidx(CYBER_PORT_AUDIO, CYBER_IDX_AUDIO_ENABLE); /* enable, if it was disabled */ if( (portDat & CYBER_BMSK_AUENZ) != CYBER_BMSK_AUENZ_ENABLE ) { printk(KERN_INFO "cyberpro5050: enabling audio controller\n" ); cyber_outidx( CYBER_PORT_AUDIO, CYBER_IDX_AUDIO_ENABLE, portDat | CYBER_BMSK_AUENZ_ENABLE ); /* check again if hardware is enabled now */ portDat = cyber_inidx(CYBER_PORT_AUDIO, CYBER_IDX_AUDIO_ENABLE); } if( (portDat & CYBER_BMSK_AUENZ) != CYBER_BMSK_AUENZ_ENABLE ) { printk(KERN_ERR "cyberpro5050: initAudioAccess: no success\n" ); ret = -1; } else { cyber_outidx( CYBER_PORT_AUDIO, CYBER_IDX_IRQ_ENABLE, CYBER_BMSK_AUDIO_INT_ENABLE ); cyber_outidx( CYBER_PORT_AUDIO, 0xbf, 0x01 ); cyber_outidx( CYBER_PORT_AUDIO, 0xba, 0x20 ); cyber_outidx( CYBER_PORT_AUDIO, 0xbb, 0x08 ); cyber_outidx( CYBER_PORT_AUDIO, 0xbf, 0x02 ); cyber_outidx( CYBER_PORT_AUDIO, 0xb3, 0x06 ); cyber_outidx( CYBER_PORT_AUDIO, 0xbf, 0x00 ); } restore_flags(flags); return ret; } /* called with spin lock held */ static int trident_load_channel_registers(struct trident_card *card, u32 *data, unsigned int channel) { int i; if (channel > 63) return FALSE; /* select hardware channel to write */ outb(channel, TRID_REG(card, T4D_LFO_GC_CIR)); /* Output the channel registers, but don't write register three to an ALI chip. */ for (i = 0; i < CHANNEL_REGS; i++) { if (i == 3 && card->pci_id == PCI_DEVICE_ID_ALI_5451) continue; outl(data[i], TRID_REG(card, CHANNEL_START + 4*i)); } if (card->pci_id == PCI_DEVICE_ID_ALI_5451 || card->pci_id == PCI_DEVICE_ID_INTERG_5050) { outl(ALI_EMOD_Still, TRID_REG(card, ALI_EBUF1)); outl(ALI_EMOD_Still, TRID_REG(card, ALI_EBUF2)); } return TRUE; } /* called with spin lock held */ static int trident_write_voice_regs(struct trident_state *state) { unsigned int data[CHANNEL_REGS + 1]; struct trident_channel *channel; channel = state->dmabuf.channel; data[1] = channel->lba; data[4] = channel->control; switch (state->card->pci_id) { case PCI_DEVICE_ID_ALI_5451: data[0] = 0; /* Current Sample Offset */ data[2] = (channel->eso << 16) | (channel->delta & 0xffff); data[3] = 0; break; case PCI_DEVICE_ID_SI_7018: case PCI_DEVICE_ID_INTERG_5050: data[0] = 0; /* Current Sample Offset */ data[2] = (channel->eso << 16) | (channel->delta & 0xffff); data[3] = (channel->attribute << 16) | (channel->fm_vol & 0xffff); break; case PCI_DEVICE_ID_TRIDENT_4DWAVE_DX: data[0] = 0; /* Current Sample Offset */ data[2] = (channel->eso << 16) | (channel->delta & 0xffff); data[3] = channel->fm_vol & 0xffff; break; case PCI_DEVICE_ID_TRIDENT_4DWAVE_NX: data[0] = (channel->delta << 24); data[2] = ((channel->delta << 16) & 0xff000000) | (channel->eso & 0x00ffffff); data[3] = channel->fm_vol & 0xffff; break; default: return FALSE; } return trident_load_channel_registers(state->card, data, channel->num); } static int compute_rate_play(u32 rate) { int delta; /* We special case 44100 and 8000 since rounding with the equation does not give us an accurate enough value. For 11025 and 22050 the equation gives us the best answer. All other frequencies will also use the equation. JDW */ if (rate == 44100) delta = 0xeb3; else if (rate == 8000) delta = 0x2ab; else if (rate == 48000) delta = 0x1000; else delta = (((rate << 12) + rate) / 48000) & 0x0000ffff; return delta; } static int compute_rate_rec(u32 rate) { int delta; if (rate == 44100) delta = 0x116a; else if (rate == 8000) delta = 0x6000; else if (rate == 48000) delta = 0x1000; else delta = ((48000 << 12) / rate) & 0x0000ffff; return delta; } /* set playback sample rate */ static unsigned int trident_set_dac_rate(struct trident_state * state, unsigned int rate) { struct dmabuf *dmabuf = &state->dmabuf; if (rate > 48000) rate = 48000; if (rate < 4000) rate = 4000; dmabuf->rate = rate; dmabuf->channel->delta = compute_rate_play(rate); trident_write_voice_regs(state); #ifdef DEBUG printk("trident: called trident_set_dac_rate : rate = %d\n", rate); #endif return rate; } /* set recording sample rate */ static unsigned int trident_set_adc_rate(struct trident_state * state, unsigned int rate) { struct dmabuf *dmabuf = &state->dmabuf; if (rate > 48000) rate = 48000; if (rate < 4000) rate = 4000; dmabuf->rate = rate; dmabuf->channel->delta = compute_rate_rec(rate); trident_write_voice_regs(state); #ifdef DEBUG printk("trident: called trident_set_adc_rate : rate = %d\n", rate); #endif return rate; } /* prepare channel attributes for playback */ static void trident_play_setup(struct trident_state *state) { struct dmabuf *dmabuf = &state->dmabuf; struct trident_channel *channel = dmabuf->channel; channel->lba = dmabuf->dma_handle; channel->delta = compute_rate_play(dmabuf->rate); channel->eso = dmabuf->dmasize >> sample_shift[dmabuf->fmt]; channel->eso -= 1; if (state->card->pci_id != PCI_DEVICE_ID_SI_7018) { channel->attribute = 0; if (state->card->pci_id == PCI_DEVICE_ID_ALI_5451) { if ((channel->num == ALI_SPDIF_IN_CHANNEL) || (channel->num == ALI_PCM_IN_CHANNEL)) ali_disable_special_channel(state->card, channel->num); else if ((inl(TRID_REG(state->card, ALI_GLOBAL_CONTROL)) & ALI_SPDIF_OUT_CH_ENABLE) && (channel->num == ALI_SPDIF_OUT_CHANNEL)) { ali_set_spdif_out_rate(state->card, state->dmabuf.rate); state->dmabuf.channel->delta = 0x1000; } } } channel->fm_vol = 0x0; channel->control = CHANNEL_LOOP; if (dmabuf->fmt & TRIDENT_FMT_16BIT) { /* 16-bits */ channel->control |= CHANNEL_16BITS; /* signed */ channel->control |= CHANNEL_SIGNED; } if (dmabuf->fmt & TRIDENT_FMT_STEREO) /* stereo */ channel->control |= CHANNEL_STEREO; #ifdef DEBUG printk("trident: trident_play_setup, LBA = 0x%08x, " "Delta = 0x%08x, ESO = 0x%08x, Control = 0x%08x\n", channel->lba, channel->delta, channel->eso, channel->control); #endif trident_write_voice_regs(state); } /* prepare channel attributes for recording */ static void trident_rec_setup(struct trident_state *state) { u16 w; u8 bval; struct trident_card *card = state->card; struct dmabuf *dmabuf = &state->dmabuf; struct trident_channel *channel = dmabuf->channel; unsigned int rate; /* Enable AC-97 ADC (capture) */ switch (card->pci_id) { case PCI_DEVICE_ID_ALI_5451: ali_enable_special_channel(state); break; case PCI_DEVICE_ID_SI_7018: /* for 7018, the ac97 is always in playback/record (duplex) mode */ break; case PCI_DEVICE_ID_TRIDENT_4DWAVE_DX: w = inb(TRID_REG(card, DX_ACR2_AC97_COM_STAT)); outb(w | 0x48, TRID_REG(card, DX_ACR2_AC97_COM_STAT)); /* enable and set record channel */ outb(0x80 | channel->num, TRID_REG(card, T4D_REC_CH)); break; case PCI_DEVICE_ID_TRIDENT_4DWAVE_NX: w = inw(TRID_REG(card, T4D_MISCINT)); outw(w | 0x1000, TRID_REG(card, T4D_MISCINT)); /* enable and set record channel */ outb(0x80 | channel->num, TRID_REG(card, T4D_REC_CH)); break; case PCI_DEVICE_ID_INTERG_5050: /* don't know yet, using special channel 22 in GC1(0xd4)? */ break; default: return; } channel->lba = dmabuf->dma_handle; channel->delta = compute_rate_rec(dmabuf->rate); if ((card->pci_id == PCI_DEVICE_ID_ALI_5451) && (channel->num == ALI_SPDIF_IN_CHANNEL)) { rate = ali_get_spdif_in_rate(card); if (rate == 0) { printk(KERN_WARNING "trident: ALi 5451 S/PDIF input setup error!\n"); rate = 48000; } bval = inb(TRID_REG(card,ALI_SPDIF_CTRL)); if (bval & 0x10) { outb(bval,TRID_REG(card,ALI_SPDIF_CTRL)); printk(KERN_WARNING "trident: cleared ALi 5451 S/PDIF parity error flag.\n"); } if (rate != 48000) channel->delta = ((rate << 12) / dmabuf->rate) & 0x0000ffff; } channel->eso = dmabuf->dmasize >> sample_shift[dmabuf->fmt]; channel->eso -= 1; if (state->card->pci_id != PCI_DEVICE_ID_SI_7018) { channel->attribute = 0; } channel->fm_vol = 0x0; channel->control = CHANNEL_LOOP; if (dmabuf->fmt & TRIDENT_FMT_16BIT) { /* 16-bits */ channel->control |= CHANNEL_16BITS; /* signed */ channel->control |= CHANNEL_SIGNED; } if (dmabuf->fmt & TRIDENT_FMT_STEREO) /* stereo */ channel->control |= CHANNEL_STEREO; #ifdef DEBUG printk("trident: trident_rec_setup, LBA = 0x%08x, " "Delat = 0x%08x, ESO = 0x%08x, Control = 0x%08x\n", channel->lba, channel->delta, channel->eso, channel->control); #endif trident_write_voice_regs(state); } /* get current playback/recording dma buffer pointer (byte offset from LBA), called with spinlock held! */ static inline unsigned trident_get_dma_addr(struct trident_state *state) { struct dmabuf *dmabuf = &state->dmabuf; u32 cso; if (!dmabuf->enable) return 0; outb(dmabuf->channel->num, TRID_REG(state->card, T4D_LFO_GC_CIR)); switch (state->card->pci_id) { case PCI_DEVICE_ID_ALI_5451: case PCI_DEVICE_ID_SI_7018: case PCI_DEVICE_ID_TRIDENT_4DWAVE_DX: case PCI_DEVICE_ID_INTERG_5050: /* 16 bits ESO, CSO for 7018 and DX */ cso = inw(TRID_REG(state->card, CH_DX_CSO_ALPHA_FMS + 2)); break; case PCI_DEVICE_ID_TRIDENT_4DWAVE_NX: /* 24 bits ESO, CSO for NX */ cso = inl(TRID_REG(state->card, CH_NX_DELTA_CSO)) & 0x00ffffff; break; default: return 0; } #ifdef DEBUG printk("trident: trident_get_dma_addr: chip reported channel: %d, " "cso = 0x%04x\n", dmabuf->channel->num, cso); #endif /* ESO and CSO are in units of Samples, convert to byte offset */ cso <<= sample_shift[dmabuf->fmt]; return (cso % dmabuf->dmasize); } /* Stop recording (lock held) */ static inline void __stop_adc(struct trident_state *state) { struct dmabuf *dmabuf = &state->dmabuf; unsigned int chan_num = dmabuf->channel->num; struct trident_card *card = state->card; dmabuf->enable &= ~ADC_RUNNING; trident_stop_voice(card, chan_num); trident_disable_voice_irq(card, chan_num); } static void stop_adc(struct trident_state *state) { struct trident_card *card = state->card; unsigned long flags; spin_lock_irqsave(&card->lock, flags); __stop_adc(state); spin_unlock_irqrestore(&card->lock, flags); } static void start_adc(struct trident_state *state) { struct dmabuf *dmabuf = &state->dmabuf; unsigned int chan_num = dmabuf->channel->num; struct trident_card *card = state->card; unsigned long flags; spin_lock_irqsave(&card->lock, flags); if ((dmabuf->mapped || dmabuf->count < (signed)dmabuf->dmasize) && dmabuf->ready) { dmabuf->enable |= ADC_RUNNING; trident_enable_voice_irq(card, chan_num); trident_start_voice(card, chan_num); } spin_unlock_irqrestore(&card->lock, flags); } /* stop playback (lock held) */ static inline void __stop_dac(struct trident_state *state) { struct dmabuf *dmabuf = &state->dmabuf; unsigned int chan_num = dmabuf->channel->num; struct trident_card *card = state->card; dmabuf->enable &= ~DAC_RUNNING; trident_stop_voice(card, chan_num); if (state->chans_num == 6) { trident_stop_voice(card, state->other_states[0]->dmabuf.channel->num); trident_stop_voice(card, state->other_states[1]->dmabuf.channel->num); trident_stop_voice(card, state->other_states[2]->dmabuf.channel->num); trident_stop_voice(card, state->other_states[3]->dmabuf.channel->num); } trident_disable_voice_irq(card, chan_num); } static void stop_dac(struct trident_state *state) { struct trident_card *card = state->card; unsigned long flags; spin_lock_irqsave(&card->lock, flags); __stop_dac(state); spin_unlock_irqrestore(&card->lock, flags); } static void start_dac(struct trident_state *state) { struct dmabuf *dmabuf = &state->dmabuf; unsigned int chan_num = dmabuf->channel->num; struct trident_card *card = state->card; unsigned long flags; spin_lock_irqsave(&card->lock, flags); if ((dmabuf->mapped || dmabuf->count > 0) && dmabuf->ready) { dmabuf->enable |= DAC_RUNNING; trident_enable_voice_irq(card, chan_num); trident_start_voice(card, chan_num); if (state->chans_num == 6) { trident_start_voice(card, state->other_states[0]->dmabuf.channel->num); trident_start_voice(card, state->other_states[1]->dmabuf.channel->num); trident_start_voice(card, state->other_states[2]->dmabuf.channel->num); trident_start_voice(card, state->other_states[3]->dmabuf.channel->num); } } spin_unlock_irqrestore(&card->lock, flags); } #define DMABUF_DEFAULTORDER (15-PAGE_SHIFT) #define DMABUF_MINORDER 1 /* allocate DMA buffer, playback and recording buffer should be allocated seperately */ static int alloc_dmabuf(struct trident_state *state) { struct dmabuf *dmabuf = &state->dmabuf; void *rawbuf = NULL; int order; struct page *page, *pend; /* alloc as big a chunk as we can, FIXME: is this necessary ?? */ for (order = DMABUF_DEFAULTORDER; order >= DMABUF_MINORDER; order--) if ((rawbuf = pci_alloc_consistent(state->card->pci_dev, PAGE_SIZE << order, &dmabuf->dma_handle))) break; if (!rawbuf) return -ENOMEM; #ifdef DEBUG printk("trident: allocated %ld (order = %d) bytes at %p\n", PAGE_SIZE << order, order, rawbuf); #endif dmabuf->ready = dmabuf->mapped = 0; dmabuf->rawbuf = rawbuf; dmabuf->buforder = order; /* now mark the pages as reserved; otherwise remap_page_range doesn't do what we want */ pend = virt_to_page(rawbuf + (PAGE_SIZE << order) - 1); for (page = virt_to_page(rawbuf); page <= pend; page++) mem_map_reserve(page); return 0; } /* free DMA buffer */ static void dealloc_dmabuf(struct trident_state *state) { struct dmabuf *dmabuf = &state->dmabuf; struct page *page, *pend; if (dmabuf->rawbuf) { /* undo marking the pages as reserved */ pend = virt_to_page(dmabuf->rawbuf + (PAGE_SIZE << dmabuf->buforder) - 1); for (page = virt_to_page(dmabuf->rawbuf); page <= pend; page++) mem_map_unreserve(page); pci_free_consistent(state->card->pci_dev, PAGE_SIZE << dmabuf->buforder, dmabuf->rawbuf, dmabuf->dma_handle); } dmabuf->rawbuf = NULL; dmabuf->mapped = dmabuf->ready = 0; } static int prog_dmabuf(struct trident_state *state, unsigned rec) { struct dmabuf *dmabuf = &state->dmabuf; unsigned bytepersec; struct trident_state *s = state; unsigned bufsize, dma_nums; unsigned long flags; int ret, i, order; struct page *page, *pend; lock_set_fmt(state); if (state->chans_num == 6) dma_nums = 5; else dma_nums = 1; for (i = 0; i < dma_nums; i++) { if (i > 0) { s = state->other_states[i - 1]; dmabuf = &s->dmabuf; dmabuf->fmt = state->dmabuf.fmt; dmabuf->rate = state->dmabuf.rate; } spin_lock_irqsave(&s->card->lock, flags); dmabuf->hwptr = dmabuf->swptr = dmabuf->total_bytes = 0; dmabuf->count = dmabuf->error = 0; spin_unlock_irqrestore(&s->card->lock, flags); /* allocate DMA buffer if not allocated yet */ if (!dmabuf->rawbuf) { if (i == 0) { if ((ret = alloc_dmabuf(state))) { unlock_set_fmt(state); return ret; } } else { if ((order = state->dmabuf.buforder - 1) >= DMABUF_MINORDER) { dmabuf->rawbuf = pci_alloc_consistent(state->card->pci_dev, PAGE_SIZE << order, &dmabuf->dma_handle); } if (!dmabuf->rawbuf) { free_pages((unsigned long)state->dmabuf.rawbuf, state->dmabuf.buforder); state->dmabuf.rawbuf = NULL; i-=2; for (; i >= 0; i--) { pci_free_consistent(state->card->pci_dev, PAGE_SIZE << state->other_states[i]->dmabuf.buforder, state->other_states[i]->dmabuf.rawbuf, state->other_states[i]->dmabuf.dma_handle); } unlock_set_fmt(state); return -ENOMEM; } dmabuf->ready = dmabuf->mapped = 0; dmabuf->buforder = order; pend = virt_to_page(dmabuf->rawbuf + (PAGE_SIZE << order) - 1); for (page = virt_to_page(dmabuf->rawbuf); page <= pend; page++) mem_map_reserve(page); } } /* FIXME: figure out all this OSS fragment stuff */ bytepersec = dmabuf->rate << sample_shift[dmabuf->fmt]; bufsize = PAGE_SIZE << dmabuf->buforder; if (dmabuf->ossfragshift) { if ((1000 << dmabuf->ossfragshift) < bytepersec) dmabuf->fragshift = ld2(bytepersec/1000); else dmabuf->fragshift = dmabuf->ossfragshift; } else { /* lets hand out reasonable big ass buffers by default */ dmabuf->fragshift = (dmabuf->buforder + PAGE_SHIFT -2); } dmabuf->numfrag = bufsize >> dmabuf->fragshift; while (dmabuf->numfrag < 4 && dmabuf->fragshift > 3) { dmabuf->fragshift--; dmabuf->numfrag = bufsize >> dmabuf->fragshift; } dmabuf->fragsize = 1 << dmabuf->fragshift; if (dmabuf->ossmaxfrags >= 4 && dmabuf->ossmaxfrags < dmabuf->numfrag) dmabuf->numfrag = dmabuf->ossmaxfrags; dmabuf->fragsamples = dmabuf->fragsize >> sample_shift[dmabuf->fmt]; dmabuf->dmasize = dmabuf->numfrag << dmabuf->fragshift; memset(dmabuf->rawbuf, (dmabuf->fmt & TRIDENT_FMT_16BIT) ? 0 : 0x80, dmabuf->dmasize); spin_lock_irqsave(&s->card->lock, flags); if (rec) { trident_rec_setup(s); } else { trident_play_setup(s); } spin_unlock_irqrestore(&s->card->lock, flags); /* set the ready flag for the dma buffer */ dmabuf->ready = 1; #ifdef DEBUG printk("trident: prog_dmabuf(%d), sample rate = %d, format = %d, numfrag = %d, " "fragsize = %d dmasize = %d\n", dmabuf->channel->num, dmabuf->rate, dmabuf->fmt, dmabuf->numfrag, dmabuf->fragsize, dmabuf->dmasize); #endif } unlock_set_fmt(state); return 0; } /* we are doing quantum mechanics here, the buffer can only be empty, half or full filled i.e. |------------|------------| or |xxxxxxxxxxxx|------------| or |xxxxxxxxxxxx|xxxxxxxxxxxx| but we almost always get this |xxxxxx------|------------| or |xxxxxxxxxxxx|xxxxx-------| so we have to clear the tail space to "silence" |xxxxxx000000|------------| or |xxxxxxxxxxxx|xxxxxx000000| */ static void trident_clear_tail(struct trident_state *state) { struct dmabuf *dmabuf = &state->dmabuf; unsigned swptr; unsigned char silence = (dmabuf->fmt & TRIDENT_FMT_16BIT) ? 0 : 0x80; unsigned int len; unsigned long flags; spin_lock_irqsave(&state->card->lock, flags); swptr = dmabuf->swptr; spin_unlock_irqrestore(&state->card->lock, flags); if (swptr == 0 || swptr == dmabuf->dmasize / 2 || swptr == dmabuf->dmasize) return; if (swptr < dmabuf->dmasize/2) len = dmabuf->dmasize/2 - swptr; else len = dmabuf->dmasize - swptr; memset(dmabuf->rawbuf + swptr, silence, len); if(state->card->pci_id != PCI_DEVICE_ID_ALI_5451) { spin_lock_irqsave(&state->card->lock, flags); dmabuf->swptr += len; dmabuf->count += len; spin_unlock_irqrestore(&state->card->lock, flags); } /* restart the dma machine in case it is halted */ start_dac(state); } static int drain_dac(struct trident_state *state, int nonblock) { DECLARE_WAITQUEUE(wait, current); struct dmabuf *dmabuf = &state->dmabuf; unsigned long flags; unsigned long tmo; int count; unsigned long diff = 0; if (dmabuf->mapped || !dmabuf->ready) return 0; add_wait_queue(&dmabuf->wait, &wait); for (;;) { /* It seems that we have to set the current state to TASK_INTERRUPTIBLE every time to make the process really go to sleep */ current->state = TASK_INTERRUPTIBLE; spin_lock_irqsave(&state->card->lock, flags); count = dmabuf->count; spin_unlock_irqrestore(&state->card->lock, flags); if (count <= 0) break; if (signal_pending(current)) break; if (nonblock) { remove_wait_queue(&dmabuf->wait, &wait); current->state = TASK_RUNNING; return -EBUSY; } /* No matter how much data is left in the buffer, we have to wait until CSO == ESO/2 or CSO == ESO when address engine interrupts */ if (state->card->pci_id == PCI_DEVICE_ID_ALI_5451 || state->card->pci_id == PCI_DEVICE_ID_INTERG_5050) { diff = dmabuf->swptr - trident_get_dma_addr(state) + dmabuf->dmasize ; diff = diff % (dmabuf->dmasize); tmo = (diff * HZ) / dmabuf->rate; } else { tmo = (dmabuf->dmasize * HZ) / dmabuf->rate; } tmo >>= sample_shift[dmabuf->fmt]; if (!schedule_timeout(tmo ? tmo : 1) && tmo){ break; } } remove_wait_queue(&dmabuf->wait, &wait); current->state = TASK_RUNNING; if (signal_pending(current)) return -ERESTARTSYS; return 0; } /* update buffer manangement pointers, especially, dmabuf->count and dmabuf->hwptr */ static void trident_update_ptr(struct trident_state *state) { struct dmabuf *dmabuf = &state->dmabuf; unsigned hwptr, swptr; int clear_cnt = 0; int diff; unsigned char silence; unsigned half_dmasize; /* update hardware pointer */ hwptr = trident_get_dma_addr(state); diff = (dmabuf->dmasize + hwptr - dmabuf->hwptr) % dmabuf->dmasize; dmabuf->hwptr = hwptr; dmabuf->total_bytes += diff; /* error handling and process wake up for ADC */ if (dmabuf->enable == ADC_RUNNING) { if (dmabuf->mapped) { dmabuf->count -= diff; if (dmabuf->count >= (signed)dmabuf->fragsize) wake_up(&dmabuf->wait); } else { dmabuf->count += diff; if (dmabuf->count < 0 || dmabuf->count > dmabuf->dmasize) { /* buffer underrun or buffer overrun, we have no way to recover it here, just stop the machine and let the process force hwptr and swptr to sync */ __stop_adc(state); dmabuf->error++; } if (dmabuf->count < (signed)dmabuf->dmasize/2) wake_up(&dmabuf->wait); } } /* error handling and process wake up for DAC */ if (dmabuf->enable == DAC_RUNNING) { if (dmabuf->mapped) { dmabuf->count += diff; if (dmabuf->count >= (signed)dmabuf->fragsize) wake_up(&dmabuf->wait); } else { dmabuf->count -= diff; if (dmabuf->count < 0 || dmabuf->count > dmabuf->dmasize) { /* buffer underrun or buffer overrun, we have no way to recover it here, just stop the machine and let the process force hwptr and swptr to sync */ __stop_dac(state); dmabuf->error++; } else if (!dmabuf->endcleared) { swptr = dmabuf->swptr; silence = (dmabuf->fmt & TRIDENT_FMT_16BIT ? 0 : 0x80); if (dmabuf->update_flag & ALI_ADDRESS_INT_UPDATE) { /* We must clear end data of 1/2 dmabuf if needed. According to 1/2 algorithm of Address Engine Interrupt, check the validation of the data of half dmasize. */ half_dmasize = dmabuf->dmasize / 2; if ((diff = hwptr - half_dmasize) < 0 ) diff = hwptr; if ((dmabuf->count + diff) < half_dmasize) { //there is invalid data in the end of half buffer if ((clear_cnt = half_dmasize - swptr) < 0) clear_cnt += half_dmasize; //clear the invalid data memset (dmabuf->rawbuf + swptr, silence, clear_cnt); if (state->chans_num == 6) { clear_cnt = clear_cnt / 2; swptr = swptr / 2; memset (state->other_states[0]->dmabuf.rawbuf + swptr, silence, clear_cnt); memset (state->other_states[1]->dmabuf.rawbuf + swptr, silence, clear_cnt); memset (state->other_states[2]->dmabuf.rawbuf + swptr, silence, clear_cnt); memset (state->other_states[3]->dmabuf.rawbuf + swptr, silence, clear_cnt); } dmabuf->endcleared = 1; } } else if (dmabuf->count < (signed) dmabuf->fragsize) { clear_cnt = dmabuf->fragsize; if ((swptr + clear_cnt) > dmabuf->dmasize) clear_cnt = dmabuf->dmasize - swptr; memset (dmabuf->rawbuf + swptr, silence, clear_cnt); if (state->chans_num == 6) { clear_cnt = clear_cnt / 2; swptr = swptr / 2; memset (state->other_states[0]->dmabuf.rawbuf + swptr, silence, clear_cnt); memset (state->other_states[1]->dmabuf.rawbuf + swptr, silence, clear_cnt); memset (state->other_states[2]->dmabuf.rawbuf + swptr, silence, clear_cnt); memset (state->other_states[3]->dmabuf.rawbuf + swptr, silence, clear_cnt); } dmabuf->endcleared = 1; } } /* trident_update_ptr is called by interrupt handler or by process via ioctl/poll, we only wake up the waiting process when we have more than 1/2 buffer free (always true for interrupt handler) */ if (dmabuf->count < (signed)dmabuf->dmasize/2) wake_up(&dmabuf->wait); } } dmabuf->update_flag &= ~ALI_ADDRESS_INT_UPDATE; } static void trident_address_interrupt(struct trident_card *card) { int i; struct trident_state *state; /* Update the pointers for all channels we are running. */ /* FIXME: should read interrupt status only once */ for (i = 0; i < NR_HW_CH; i++) { if (trident_check_channel_interrupt(card, 63 - i)) { trident_ack_channel_interrupt(card, 63 - i); if ((state = card->states[i]) != NULL) { trident_update_ptr(state); } else { printk("trident: spurious channel irq %d.\n", 63 - i); trident_stop_voice(card, 63 - i); trident_disable_voice_irq(card, 63 - i); } } } } static void ali_hwvol_control(struct trident_card *card, int opt) { u16 dwTemp, volume[2], mute, diff, *pVol[2]; dwTemp = ali_ac97_read(card->ac97_codec[0], 0x02); mute = dwTemp & 0x8000; volume[0] = dwTemp & 0x001f; volume[1] = (dwTemp & 0x1f00) >> 8; if (volume[0] < volume [1]) { pVol[0] = &volume[0]; pVol[1] = &volume[1]; } else { pVol[1] = &volume[0]; pVol[0] = &volume[1]; } diff = *(pVol[1]) - *(pVol[0]); if (opt == 1) { // MUTE dwTemp ^= 0x8000; ali_ac97_write(card->ac97_codec[0], 0x02, dwTemp); } else if (opt == 2) { // Down if (mute) return; if (*(pVol[1]) < 0x001f) { (*pVol[1])++; *(pVol[0]) = *(pVol[1]) - diff; } dwTemp &= 0xe0e0; dwTemp |= (volume[0]) | (volume[1] << 8); ali_ac97_write(card->ac97_codec[0], 0x02, dwTemp); card->ac97_codec[0]->mixer_state[0] = ((32-volume[0])*25/8) | (((32-volume[1])*25/8) << 8); } else if (opt == 4) { // Up if (mute) return; if (*(pVol[0]) >0) { (*pVol[0])--; *(pVol[1]) = *(pVol[0]) + diff; } dwTemp &= 0xe0e0; dwTemp |= (volume[0]) | (volume[1] << 8); ali_ac97_write(card->ac97_codec[0], 0x02, dwTemp); card->ac97_codec[0]->mixer_state[0] = ((32-volume[0])*25/8) | (((32-volume[1])*25/8) << 8); } else { /* Nothing needs doing */ } } /* * Re-enable reporting of vol change after 0.1 seconds */ static void ali_timeout(unsigned long ptr) { struct trident_card *card = (struct trident_card *)ptr; u16 temp = 0; /* Enable GPIO IRQ (MISCINT bit 18h)*/ temp = inw(TRID_REG(card, T4D_MISCINT + 2)); temp |= 0x0004; outw(temp, TRID_REG(card, T4D_MISCINT + 2)); } /* * Set up the timer to clear the vol change notification */ static void ali_set_timer(struct trident_card *card) { /* Add Timer Routine to Enable GPIO IRQ */ del_timer(&card->timer); /* Never queue twice */ card->timer.function = ali_timeout; card->timer.data = (unsigned long) card; card->timer.expires = jiffies + HZ/10; add_timer(&card->timer); } /* * Process a GPIO event */ static void ali_queue_task(struct trident_card *card, int opt) { u16 temp; /* Disable GPIO IRQ (MISCINT bit 18h)*/ temp = inw(TRID_REG(card, T4D_MISCINT + 2)); temp &= (u16)(~0x0004); outw(temp, TRID_REG(card, T4D_MISCINT + 2)); /* Adjust the volume */ ali_hwvol_control(card, opt); /* Set the timer for 1/10th sec */ ali_set_timer(card); } static void cyber_address_interrupt(struct trident_card *card) { int i,irq_status; struct trident_state *state; /* Update the pointers for all channels we are running. */ /* FIXED: read interrupt status only once */ irq_status=inl(TRID_REG(card, T4D_AINT_A) ); #ifdef DEBUG printk("cyber_address_interrupt: irq_status 0x%X\n",irq_status); #endif for (i = 0; i < NR_HW_CH; i++) { if (irq_status & ( 1 << (31 - i)) ) { /* clear bit by writing a 1, zeroes are ignored */ outl( (1 <<(31-i)), TRID_REG(card, T4D_AINT_A)); #ifdef DEBUG printk("cyber_interrupt: channel %d\n", 31-i); #endif if ((state = card->states[i]) != NULL) { trident_update_ptr(state); } else { printk("cyber5050: spurious channel irq %d.\n", 31 - i); trident_stop_voice(card, 31 - i); trident_disable_voice_irq(card, 31 - i); } } } } static void trident_interrupt(int irq, void *dev_id, struct pt_regs *regs) { struct trident_card *card = (struct trident_card *)dev_id; u32 event; u32 gpio; spin_lock(&card->lock); event = inl(TRID_REG(card, T4D_MISCINT)); #ifdef DEBUG printk("trident: trident_interrupt called, MISCINT = 0x%08x\n", event); #endif if (event & ADDRESS_IRQ) { card->address_interrupt(card); } if(card->pci_id == PCI_DEVICE_ID_ALI_5451) { /* GPIO IRQ (H/W Volume Control) */ event = inl(TRID_REG(card, T4D_MISCINT)); if (event & (1<<25)) { gpio = inl(TRID_REG(card, ALI_GPIO)); if (!timer_pending(&card->timer)) ali_queue_task(card, gpio&0x07); } event = inl(TRID_REG(card, T4D_MISCINT)); outl(event | (ST_TARGET_REACHED | MIXER_OVERFLOW | MIXER_UNDERFLOW), TRID_REG(card, T4D_MISCINT)); spin_unlock(&card->lock); return; } /* manually clear interrupt status, bad hardware design, blame T^2 */ outl((ST_TARGET_REACHED | MIXER_OVERFLOW | MIXER_UNDERFLOW), TRID_REG(card, T4D_MISCINT)); spin_unlock(&card->lock); } /* in this loop, dmabuf.count signifies the amount of data that is waiting to be copied to the user's buffer. it is filled by the dma machine and drained by this loop. */ static ssize_t trident_read(struct file *file, char *buffer, size_t count, loff_t *ppos) { struct trident_state *state = (struct trident_state *)file->private_data; struct dmabuf *dmabuf = &state->dmabuf; ssize_t ret = 0; unsigned long flags; unsigned swptr; int cnt; #ifdef DEBUG printk("trident: trident_read called, count = %d\n", count); #endif VALIDATE_STATE(state); if (ppos != &file->f_pos) return -ESPIPE; if (dmabuf->mapped) return -ENXIO; if (!access_ok(VERIFY_WRITE, buffer, count)) return -EFAULT; down(&state->sem); if (!dmabuf->ready && (ret = prog_dmabuf(state, 1))) goto out; while (count > 0) { spin_lock_irqsave(&state->card->lock, flags); if (dmabuf->count > (signed) dmabuf->dmasize) { /* buffer overrun, we are recovering from sleep_on_timeout, resync hwptr and swptr, make process flush the buffer */ dmabuf->count = dmabuf->dmasize; dmabuf->swptr = dmabuf->hwptr; } swptr = dmabuf->swptr; cnt = dmabuf->dmasize - swptr; if (dmabuf->count < cnt) cnt = dmabuf->count; spin_unlock_irqrestore(&state->card->lock, flags); if (cnt > count) cnt = count; if (cnt <= 0) { unsigned long tmo; /* buffer is empty, start the dma machine and wait for data to be recorded */ start_adc(state); if (file->f_flags & O_NONBLOCK) { if (!ret) ret = -EAGAIN; goto out; } up(&state->sem); /* No matter how much space left in the buffer, we have to wait until CSO == ESO/2 or CSO == ESO when address engine interrupts */ tmo = (dmabuf->dmasize * HZ) / (dmabuf->rate * 2); tmo >>= sample_shift[dmabuf->fmt]; /* There are two situations when sleep_on_timeout returns, one is when the interrupt is serviced correctly and the process is waked up by ISR ON TIME. Another is when timeout is expired, which means that either interrupt is NOT serviced correctly (pending interrupt) or it is TOO LATE for the process to be scheduled to run (scheduler latency) which results in a (potential) buffer overrun. And worse, there is NOTHING we can do to prevent it. */ if (!interruptible_sleep_on_timeout(&dmabuf->wait, tmo)) { #ifdef DEBUG printk(KERN_ERR "trident: recording schedule timeout, " "dmasz %u fragsz %u count %i hwptr %u swptr %u\n", dmabuf->dmasize, dmabuf->fragsize, dmabuf->count, dmabuf->hwptr, dmabuf->swptr); #endif /* a buffer overrun, we delay the recovery until next time the while loop begin and we REALLY have space to record */ } if (signal_pending(current)) { if(!ret) ret = -ERESTARTSYS; goto out; } down(&state->sem); if(dmabuf->mapped) { if(!ret) ret = -ENXIO; goto out; } continue; } if (copy_to_user(buffer, dmabuf->rawbuf + swptr, cnt)) { if (!ret) ret = -EFAULT; goto out; } swptr = (swptr + cnt) % dmabuf->dmasize; spin_lock_irqsave(&state->card->lock, flags); dmabuf->swptr = swptr; dmabuf->count -= cnt; spin_unlock_irqrestore(&state->card->lock, flags); count -= cnt; buffer += cnt; ret += cnt; start_adc(state); } out: up(&state->sem); return ret; } /* in this loop, dmabuf.count signifies the amount of data that is waiting to be dma to the soundcard. it is drained by the dma machine and filled by this loop. */ static ssize_t trident_write(struct file *file, const char *buffer, size_t count, loff_t *ppos) { struct trident_state *state = (struct trident_state *)file->private_data; struct dmabuf *dmabuf = &state->dmabuf; ssize_t ret; unsigned long flags; unsigned swptr; int cnt; unsigned int state_cnt; unsigned int copy_count; #ifdef DEBUG printk("trident: trident_write called, count = %d\n", count); #endif VALIDATE_STATE(state); if (ppos != &file->f_pos) return -ESPIPE; /* * Guard against an mmap or ioctl while writing */ down(&state->sem); if (dmabuf->mapped) { ret = -ENXIO; goto out; } if (!dmabuf->ready && (ret = prog_dmabuf(state, 0))) goto out; if (!access_ok(VERIFY_READ, buffer, count)) { ret= -EFAULT; goto out; } ret = 0; while (count > 0) { spin_lock_irqsave(&state->card->lock, flags); if (dmabuf->count < 0) { /* buffer underrun, we are recovering from sleep_on_timeout, resync hwptr and swptr */ dmabuf->count = 0; dmabuf->swptr = dmabuf->hwptr; } swptr = dmabuf->swptr; cnt = dmabuf->dmasize - swptr; if (dmabuf->count + cnt > dmabuf->dmasize) cnt = dmabuf->dmasize - dmabuf->count; spin_unlock_irqrestore(&state->card->lock, flags); if (cnt > count) cnt = count; if (cnt <= 0) { unsigned long tmo; /* buffer is full, start the dma machine and wait for data to be played */ start_dac(state); if (file->f_flags & O_NONBLOCK) { if (!ret) ret = -EAGAIN; goto out; } /* No matter how much data left in the buffer, we have to wait until CSO == ESO/2 or CSO == ESO when address engine interrupts */ lock_set_fmt(state); tmo = (dmabuf->dmasize * HZ) / (dmabuf->rate * 2); tmo >>= sample_shift[dmabuf->fmt]; unlock_set_fmt(state); up(&state->sem); /* There are two situations when sleep_on_timeout returns, one is when the interrupt is serviced correctly and the process is waked up by ISR ON TIME. Another is when timeout is expired, which means that either interrupt is NOT serviced correctly (pending interrupt) or it is TOO LATE for the process to be scheduled to run (scheduler latency) which results in a (potential) buffer underrun. And worse, there is NOTHING we can do to prevent it. */ if (!interruptible_sleep_on_timeout(&dmabuf->wait, tmo)) { #ifdef DEBUG printk(KERN_ERR "trident: playback schedule timeout, " "dmasz %u fragsz %u count %i hwptr %u swptr %u\n", dmabuf->dmasize, dmabuf->fragsize, dmabuf->count, dmabuf->hwptr, dmabuf->swptr); #endif /* a buffer underrun, we delay the recovery until next time the while loop begin and we REALLY have data to play */ } if (signal_pending(current)) { if (!ret) ret = -ERESTARTSYS; goto out; } down(&state->sem); if(dmabuf->mapped) { if(!ret) ret = -ENXIO; goto out; } continue; } lock_set_fmt(state); if (state->chans_num == 6) { copy_count = 0; state_cnt = 0; if (ali_write_5_1(state, buffer, cnt, ©_count, &state_cnt) == -EFAULT) { if (state_cnt){ swptr = (swptr + state_cnt) % dmabuf->dmasize; spin_lock_irqsave(&state->card->lock, flags); dmabuf->swptr = swptr; dmabuf->count += state_cnt; dmabuf->endcleared = 0; spin_unlock_irqrestore(&state->card->lock, flags); } ret += copy_count; if (!ret) ret = -EFAULT; unlock_set_fmt(state); goto out; } } else { if (copy_from_user(dmabuf->rawbuf + swptr, buffer, cnt)) { if (!ret) ret = -EFAULT; unlock_set_fmt(state); goto out; } state_cnt = cnt; } unlock_set_fmt(state); swptr = (swptr + state_cnt) % dmabuf->dmasize; spin_lock_irqsave(&state->card->lock, flags); dmabuf->swptr = swptr; dmabuf->count += state_cnt; dmabuf->endcleared = 0; spin_unlock_irqrestore(&state->card->lock, flags); count -= cnt; buffer += cnt; ret += cnt; start_dac(state); } out: up(&state->sem); return ret; } /* No kernel lock - we have our own spinlock */ static unsigned int trident_poll(struct file *file, struct poll_table_struct *wait) { struct trident_state *state = (struct trident_state *)file->private_data; struct dmabuf *dmabuf = &state->dmabuf; unsigned long flags; unsigned int mask = 0; VALIDATE_STATE(state); /* * Guard against a parallel poll and write causing multiple * prog_dmabuf events */ down(&state->sem); if (file->f_mode & FMODE_WRITE) { if (!dmabuf->ready && prog_dmabuf(state, 0)) { up(&state->sem); return 0; } poll_wait(file, &dmabuf->wait, wait); } if (file->f_mode & FMODE_READ) { if (!dmabuf->ready && prog_dmabuf(state, 1)) { up(&state->sem); return 0; } poll_wait(file, &dmabuf->wait, wait); } up(&state->sem); spin_lock_irqsave(&state->card->lock, flags); trident_update_ptr(state); if (file->f_mode & FMODE_READ) { if (dmabuf->count >= (signed)dmabuf->fragsize) mask |= POLLIN | POLLRDNORM; } if (file->f_mode & FMODE_WRITE) { if (dmabuf->mapped) { if (dmabuf->count >= (signed)dmabuf->fragsize) mask |= POLLOUT | POLLWRNORM; } else { if ((signed)dmabuf->dmasize >= dmabuf->count + (signed)dmabuf->fragsize) mask |= POLLOUT | POLLWRNORM; } } spin_unlock_irqrestore(&state->card->lock, flags); return mask; } static int trident_mmap(struct file *file, struct vm_area_struct *vma) { struct trident_state *state = (struct trident_state *)file->private_data; struct dmabuf *dmabuf = &state->dmabuf; int ret = -EINVAL; unsigned long size; VALIDATE_STATE(state); lock_kernel(); /* * Lock against poll read write or mmap creating buffers. Also lock * a read or write against an mmap. */ down(&state->sem); if (vma->vm_flags & VM_WRITE) { if ((ret = prog_dmabuf(state, 0)) != 0) goto out; } else if (vma->vm_flags & VM_READ) { if ((ret = prog_dmabuf(state, 1)) != 0) goto out; } else goto out; ret = -EINVAL; if (vma->vm_pgoff != 0) goto out; size = vma->vm_end - vma->vm_start; if (size > (PAGE_SIZE << dmabuf->buforder)) goto out; ret = -EAGAIN; if (remap_page_range(vma->vm_start, virt_to_phys(dmabuf->rawbuf), size, vma->vm_page_prot)) goto out; dmabuf->mapped = 1; ret = 0; out: up(&state->sem); unlock_kernel(); return ret; } static int trident_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) { struct trident_state *state = (struct trident_state *)file->private_data; struct dmabuf *dmabuf = &state->dmabuf; unsigned long flags; audio_buf_info abinfo; count_info cinfo; int val, mapped, ret = 0; struct trident_card *card = state->card; VALIDATE_STATE(state); mapped = ((file->f_mode & FMODE_WRITE) && dmabuf->mapped) || ((file->f_mode & FMODE_READ) && dmabuf->mapped); #ifdef DEBUG printk("trident: trident_ioctl, command = %2d, arg = 0x%08x\n", _IOC_NR(cmd), arg ? *(int *)arg : 0); #endif switch (cmd) { case OSS_GETVERSION: ret = put_user(SOUND_VERSION, (int *)arg); break; case SNDCTL_DSP_RESET: /* FIXME: spin_lock ? */ if (file->f_mode & FMODE_WRITE) { stop_dac(state); synchronize_irq(); dmabuf->ready = 0; dmabuf->swptr = dmabuf->hwptr = 0; dmabuf->count = dmabuf->total_bytes = 0; } if (file->f_mode & FMODE_READ) { stop_adc(state); synchronize_irq(); dmabuf->ready = 0; dmabuf->swptr = dmabuf->hwptr = 0; dmabuf->count = dmabuf->total_bytes = 0; } break; case SNDCTL_DSP_SYNC: if (file->f_mode & FMODE_WRITE) ret = drain_dac(state, file->f_flags & O_NONBLOCK); break; case SNDCTL_DSP_SPEED: /* set smaple rate */ if (get_user(val, (int *)arg)) { ret = -EFAULT; break; } if (val >= 0) { if (file->f_mode & FMODE_WRITE) { stop_dac(state); dmabuf->ready = 0; spin_lock_irqsave(&state->card->lock, flags); trident_set_dac_rate(state, val); spin_unlock_irqrestore(&state->card->lock, flags); } if (file->f_mode & FMODE_READ) { stop_adc(state); dmabuf->ready = 0; spin_lock_irqsave(&state->card->lock, flags); trident_set_adc_rate(state, val); spin_unlock_irqrestore(&state->card->lock, flags); } } ret = put_user(dmabuf->rate, (int *)arg); break; case SNDCTL_DSP_STEREO: /* set stereo or mono channel */ if (get_user(val, (int *)arg)) { ret = -EFAULT; break; } lock_set_fmt(state); if (file->f_mode & FMODE_WRITE) { stop_dac(state); dmabuf->ready = 0; if (val) dmabuf->fmt |= TRIDENT_FMT_STEREO; else dmabuf->fmt &= ~TRIDENT_FMT_STEREO; } if (file->f_mode & FMODE_READ) { stop_adc(state); dmabuf->ready = 0; if (val) dmabuf->fmt |= TRIDENT_FMT_STEREO; else dmabuf->fmt &= ~TRIDENT_FMT_STEREO; } unlock_set_fmt(state); break; case SNDCTL_DSP_GETBLKSIZE: if (file->f_mode & FMODE_WRITE) { if ((val = prog_dmabuf(state, 0))) ret = val; else ret = put_user(dmabuf->fragsize, (int *)arg); break; } if (file->f_mode & FMODE_READ) { if ((val = prog_dmabuf(state, 1))) ret = val; else ret = put_user(dmabuf->fragsize, (int *)arg); break; } case SNDCTL_DSP_GETFMTS: /* Returns a mask of supported sample format*/ ret = put_user(AFMT_S16_LE|AFMT_U16_LE|AFMT_S8|AFMT_U8, (int *)arg); break; case SNDCTL_DSP_SETFMT: /* Select sample format */ if (get_user(val, (int *)arg)) { ret = -EFAULT; break; } lock_set_fmt(state); if (val != AFMT_QUERY) { if (file->f_mode & FMODE_WRITE) { stop_dac(state); dmabuf->ready = 0; if (val == AFMT_S16_LE) dmabuf->fmt |= TRIDENT_FMT_16BIT; else dmabuf->fmt &= ~TRIDENT_FMT_16BIT; } if (file->f_mode & FMODE_READ) { stop_adc(state); dmabuf->ready = 0; if (val == AFMT_S16_LE) dmabuf->fmt |= TRIDENT_FMT_16BIT; else dmabuf->fmt &= ~TRIDENT_FMT_16BIT; } } unlock_set_fmt(state); ret = put_user((dmabuf->fmt & TRIDENT_FMT_16BIT) ? AFMT_S16_LE : AFMT_U8, (int *)arg); break; case SNDCTL_DSP_CHANNELS: if (get_user(val, (int *)arg)) { ret = -EFAULT; break; } if (val != 0) { lock_set_fmt(state); if (file->f_mode & FMODE_WRITE) { stop_dac(state); dmabuf->ready = 0; //prevent from memory leak if ((state->chans_num > 2) && (state->chans_num != val)) { ali_free_other_states_resources(state); state->chans_num = 1; } if (val >= 2) { dmabuf->fmt |= TRIDENT_FMT_STEREO; if ((val == 6) && (state->card->pci_id == PCI_DEVICE_ID_ALI_5451)) { if( card->rec_channel_use_count > 0 ) { printk(KERN_ERR "trident: Record is working on the card!\n"); ret = -EBUSY; break; } ret = ali_setup_multi_channels(state->card, 6); if (ret < 0) { unlock_set_fmt(state); break; } down(&state->card->open_sem); ret = ali_allocate_other_states_resources(state, 6); if (ret < 0) { up(&state->card->open_sem); unlock_set_fmt(state); break; } state->card->multi_channel_use_count ++; up(&state->card->open_sem); } else val = 2; /*yield to 2-channels*/ } else dmabuf->fmt &= ~TRIDENT_FMT_STEREO; state->chans_num = val; } if (file->f_mode & FMODE_READ) { stop_adc(state); dmabuf->ready = 0; if (val >= 2) { if (!((file->f_mode & FMODE_WRITE) && (val == 6))) val = 2; dmabuf->fmt |= TRIDENT_FMT_STEREO; } else dmabuf->fmt &= ~TRIDENT_FMT_STEREO; state->chans_num = val; } unlock_set_fmt(state); } ret = put_user(val, (int *)arg); break; case SNDCTL_DSP_POST: /* Cause the working fragment to be output */ break; case SNDCTL_DSP_SUBDIVIDE: if (dmabuf->subdivision) { ret = -EINVAL; break; } if (get_user(val, (int *)arg)) { ret = -EFAULT; break; } if (val != 1 && val != 2 && val != 4) { ret = -EINVAL; break; } dmabuf->subdivision = val; break; case SNDCTL_DSP_SETFRAGMENT: if (get_user(val, (int *)arg)) { ret = -EFAULT; break; } dmabuf->ossfragshift = val & 0xffff; dmabuf->ossmaxfrags = (val >> 16) & 0xffff; if (dmabuf->ossfragshift < 4) dmabuf->ossfragshift = 4; if (dmabuf->ossfragshift > 15) dmabuf->ossfragshift = 15; if (dmabuf->ossmaxfrags < 4) dmabuf->ossmaxfrags = 4; break; case SNDCTL_DSP_GETOSPACE: if (!(file->f_mode & FMODE_WRITE)) { ret = -EINVAL; break; } if (!dmabuf->ready && (val = prog_dmabuf(state, 0)) != 0) { ret = val; break; } spin_lock_irqsave(&state->card->lock, flags); trident_update_ptr(state); abinfo.fragsize = dmabuf->fragsize; abinfo.bytes = dmabuf->dmasize - dmabuf->count; abinfo.fragstotal = dmabuf->numfrag; abinfo.fragments = abinfo.bytes >> dmabuf->fragshift; spin_unlock_irqrestore(&state->card->lock, flags); ret = copy_to_user((void *)arg, &abinfo, sizeof(abinfo)) ? -EFAULT : 0; break; case SNDCTL_DSP_GETISPACE: if (!(file->f_mode & FMODE_READ)) { ret = -EINVAL; break; } if (!dmabuf->ready && (val = prog_dmabuf(state, 1)) != 0) { ret = val; break; } spin_lock_irqsave(&state->card->lock, flags); trident_update_ptr(state); abinfo.fragsize = dmabuf->fragsize; abinfo.bytes = dmabuf->count; abinfo.fragstotal = dmabuf->numfrag; abinfo.fragments = abinfo.bytes >> dmabuf->fragshift; spin_unlock_irqrestore(&state->card->lock, flags); ret = copy_to_user((void *)arg, &abinfo, sizeof(abinfo)) ? -EFAULT : 0; break; case SNDCTL_DSP_NONBLOCK: file->f_flags |= O_NONBLOCK; break; case SNDCTL_DSP_GETCAPS: ret = put_user(DSP_CAP_REALTIME|DSP_CAP_TRIGGER|DSP_CAP_MMAP|DSP_CAP_BIND, (int *)arg); break; case SNDCTL_DSP_GETTRIGGER: val = 0; if ((file->f_mode & FMODE_READ) && dmabuf->enable) val |= PCM_ENABLE_INPUT; if ((file->f_mode & FMODE_WRITE) && dmabuf->enable) val |= PCM_ENABLE_OUTPUT; ret = put_user(val, (int *)arg); break; case SNDCTL_DSP_SETTRIGGER: if (get_user(val, (int *)arg)) { ret = -EFAULT; break; } if (file->f_mode & FMODE_READ) { if (val & PCM_ENABLE_INPUT) { if (!dmabuf->ready && (ret = prog_dmabuf(state, 1))) break; start_adc(state); } else stop_adc(state); } if (file->f_mode & FMODE_WRITE) { if (val & PCM_ENABLE_OUTPUT) { if (!dmabuf->ready && (ret = prog_dmabuf(state, 0))) break; start_dac(state); } else stop_dac(state); } break; case SNDCTL_DSP_GETIPTR: if (!(file->f_mode & FMODE_READ)) { ret = -EINVAL; break; } if (!dmabuf->ready && (val = prog_dmabuf(state, 1)) != 0) { ret = val; break; } spin_lock_irqsave(&state->card->lock, flags); trident_update_ptr(state); cinfo.bytes = dmabuf->total_bytes; cinfo.blocks = dmabuf->count >> dmabuf->fragshift; cinfo.ptr = dmabuf->hwptr; if (dmabuf->mapped) dmabuf->count &= dmabuf->fragsize-1; spin_unlock_irqrestore(&state->card->lock, flags); ret = copy_to_user((void *)arg, &cinfo, sizeof(cinfo)); break; case SNDCTL_DSP_GETOPTR: if (!(file->f_mode & FMODE_WRITE)) { ret = -EINVAL; break; } if (!dmabuf->ready && (val = prog_dmabuf(state, 0)) != 0) { ret = val; break; } spin_lock_irqsave(&state->card->lock, flags); trident_update_ptr(state); cinfo.bytes = dmabuf->total_bytes; cinfo.blocks = dmabuf->count >> dmabuf->fragshift; cinfo.ptr = dmabuf->hwptr; if (dmabuf->mapped) dmabuf->count &= dmabuf->fragsize-1; spin_unlock_irqrestore(&state->card->lock, flags); ret = copy_to_user((void *)arg, &cinfo, sizeof(cinfo))?-EFAULT:0; break; case SNDCTL_DSP_SETDUPLEX: ret = -EINVAL; break; case SNDCTL_DSP_GETODELAY: if (!(file->f_mode & FMODE_WRITE)) { ret = -EINVAL; break; } if (!dmabuf->ready && (val = prog_dmabuf(state, 0)) != 0) { ret = val; break; } spin_lock_irqsave(&state->card->lock, flags); trident_update_ptr(state); val = dmabuf->count; spin_unlock_irqrestore(&state->card->lock, flags); ret = put_user(val, (int *)arg); break; case SOUND_PCM_READ_RATE: ret = put_user(dmabuf->rate, (int *)arg); break; case SOUND_PCM_READ_CHANNELS: ret = put_user((dmabuf->fmt & TRIDENT_FMT_STEREO) ? 2 : 1, (int *)arg); break; case SOUND_PCM_READ_BITS: ret = put_user((dmabuf->fmt & TRIDENT_FMT_16BIT) ? AFMT_S16_LE : AFMT_U8, (int *)arg); break; case SNDCTL_DSP_GETCHANNELMASK: ret = put_user(DSP_BIND_FRONT|DSP_BIND_SURR|DSP_BIND_CENTER_LFE, (int *)arg); break; case SNDCTL_DSP_BIND_CHANNEL: if (state->card->pci_id != PCI_DEVICE_ID_SI_7018) { ret = -EINVAL; break; } if (get_user(val, (int *)arg)) { ret = -EFAULT; break; } if (val == DSP_BIND_QUERY) { val = dmabuf->channel->attribute | 0x3c00; val = attr2mask[val >> 8]; } else { dmabuf->ready = 0; if (file->f_mode & FMODE_READ) dmabuf->channel->attribute = (CHANNEL_REC|SRC_ENABLE); if (file->f_mode & FMODE_WRITE) dmabuf->channel->attribute = (CHANNEL_SPC_PB|SRC_ENABLE); dmabuf->channel->attribute |= mask2attr[ffs(val)]; } ret = put_user(val, (int *)arg); break; case SNDCTL_DSP_MAPINBUF: case SNDCTL_DSP_MAPOUTBUF: case SNDCTL_DSP_SETSYNCRO: case SOUND_PCM_WRITE_FILTER: case SOUND_PCM_READ_FILTER: default: ret = -EINVAL; break; } return ret; } static int trident_open(struct inode *inode, struct file *file) { int i = 0; int minor = MINOR(inode->i_rdev); struct trident_card *card = devs; struct trident_state *state = NULL; struct dmabuf *dmabuf = NULL; /* Added by Matt Wu 01-05-2001 */ if(file->f_mode & FMODE_READ) { if(card->pci_id == PCI_DEVICE_ID_ALI_5451) { if (card->multi_channel_use_count > 0) return -EBUSY; } } /* find an available virtual channel (instance of /dev/dsp) */ while (card != NULL) { down(&card->open_sem); if(file->f_mode & FMODE_READ) { /* Skip opens on cards that are in 6 channel mode */ if (card->multi_channel_use_count > 0) { up(&card->open_sem); card = card->next; continue; } } for (i = 0; i < NR_HW_CH; i++) { if (card->states[i] == NULL) { state = card->states[i] = (struct trident_state *) kmalloc(sizeof(struct trident_state), GFP_KERNEL); if (state == NULL) { return -ENOMEM; } memset(state, 0, sizeof(struct trident_state)); init_MUTEX(&state->sem); dmabuf = &state->dmabuf; goto found_virt; } } up(&card->open_sem); card = card->next; } /* no more virtual channel avaiable */ if (!state) { return -ENODEV; } found_virt: /* found a free virtual channel, allocate hardware channels */ if(file->f_mode & FMODE_READ) dmabuf->channel = card->alloc_rec_pcm_channel(card); else dmabuf->channel = card->alloc_pcm_channel(card); if (dmabuf->channel == NULL) { kfree (card->states[i]); card->states[i] = NULL; return -ENODEV; } /* initialize the virtual channel */ state->virt = i; state->card = card; state->magic = TRIDENT_STATE_MAGIC; init_waitqueue_head(&dmabuf->wait); file->private_data = state; /* set default sample format. According to OSS Programmer's Guide /dev/dsp should be default to unsigned 8-bits, mono, with sample rate 8kHz and /dev/dspW will accept 16-bits sample */ if (file->f_mode & FMODE_WRITE) { dmabuf->fmt &= ~TRIDENT_FMT_MASK; if ((minor & 0x0f) == SND_DEV_DSP16) dmabuf->fmt |= TRIDENT_FMT_16BIT; dmabuf->ossfragshift = 0; dmabuf->ossmaxfrags = 0; dmabuf->subdivision = 0; if (card->pci_id == PCI_DEVICE_ID_SI_7018) { /* set default channel attribute to normal playback */ dmabuf->channel->attribute = CHANNEL_PB; } trident_set_dac_rate(state, 8000); } if (file->f_mode & FMODE_READ) { /* FIXME: Trident 4d can only record in signed 16-bits stereo, 48kHz sample, to be dealed with in trident_set_adc_rate() ?? */ dmabuf->fmt &= ~TRIDENT_FMT_MASK; if ((minor & 0x0f) == SND_DEV_DSP16) dmabuf->fmt |= TRIDENT_FMT_16BIT; dmabuf->ossfragshift = 0; dmabuf->ossmaxfrags = 0; dmabuf->subdivision = 0; if (card->pci_id == PCI_DEVICE_ID_SI_7018) { /* set default channel attribute to 0x8a80, record from PCM L/R FIFO and mono = (left + right + 1)/2*/ dmabuf->channel->attribute = (CHANNEL_REC|PCM_LR|MONO_MIX); } trident_set_adc_rate(state, 8000); /* Added by Matt Wu 01-05-2001 */ if(card->pci_id == PCI_DEVICE_ID_ALI_5451) card->rec_channel_use_count ++; } state->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE); up(&card->open_sem); #ifdef DEBUG printk(KERN_ERR "trident: open virtual channel %d, hard channel %d\n", state->virt, dmabuf->channel->num); #endif return 0; } static int trident_release(struct inode *inode, struct file *file) { struct trident_state *state = (struct trident_state *)file->private_data; struct trident_card *card; struct dmabuf *dmabuf; unsigned long flags; lock_kernel(); card = state->card; dmabuf = &state->dmabuf; VALIDATE_STATE(state); if (file->f_mode & FMODE_WRITE) { trident_clear_tail(state); drain_dac(state, file->f_flags & O_NONBLOCK); } #ifdef DEBUG printk(KERN_ERR "trident: closing virtual channel %d, hard channel %d\n", state->virt, dmabuf->channel->num); #endif /* stop DMA state machine and free DMA buffers/channels */ down(&card->open_sem); if (file->f_mode & FMODE_WRITE) { stop_dac(state); lock_set_fmt(state); unlock_set_fmt(state); dealloc_dmabuf(state); state->card->free_pcm_channel(state->card, dmabuf->channel->num); /* Added by Matt Wu */ if (card->pci_id == PCI_DEVICE_ID_ALI_5451) { if (state->chans_num > 2) { if (card->multi_channel_use_count-- < 0) card->multi_channel_use_count = 0; if (card->multi_channel_use_count == 0) ali_close_multi_channels(); ali_free_other_states_resources(state); } } } if (file->f_mode & FMODE_READ) { stop_adc(state); dealloc_dmabuf(state); state->card->free_pcm_channel(state->card, dmabuf->channel->num); /* Added by Matt Wu */ if (card->pci_id == PCI_DEVICE_ID_ALI_5451) { if( card->rec_channel_use_count-- < 0 ) card->rec_channel_use_count = 0; } } card->states[state->virt] = NULL; kfree(state); /* we're covered by the open_sem */ up(&card->open_sem); unlock_kernel(); return 0; } static /*const*/ struct file_operations trident_audio_fops = { owner: THIS_MODULE, llseek: no_llseek, read: trident_read, write: trident_write, poll: trident_poll, ioctl: trident_ioctl, mmap: trident_mmap, open: trident_open, release: trident_release, }; /* trident specific AC97 functions */ /* Write AC97 codec registers */ static void trident_ac97_set(struct ac97_codec *codec, u8 reg, u16 val) { struct trident_card *card = (struct trident_card *)codec->private_data; unsigned int address, mask, busy; unsigned short count = 0xffff; unsigned long flags; u32 data; data = ((u32) val) << 16; switch (card->pci_id) { default: case PCI_DEVICE_ID_SI_7018: address = SI_AC97_WRITE; mask = SI_AC97_BUSY_WRITE | SI_AC97_AUDIO_BUSY; if (codec->id) mask |= SI_AC97_SECONDARY; busy = SI_AC97_BUSY_WRITE; break; case PCI_DEVICE_ID_TRIDENT_4DWAVE_DX: address = DX_ACR0_AC97_W; mask = busy = DX_AC97_BUSY_WRITE; break; case PCI_DEVICE_ID_TRIDENT_4DWAVE_NX: address = NX_ACR1_AC97_W; mask = NX_AC97_BUSY_WRITE; if (codec->id) mask |= NX_AC97_WRITE_SECONDARY; busy = NX_AC97_BUSY_WRITE; break; case PCI_DEVICE_ID_INTERG_5050: address = SI_AC97_WRITE; mask = busy = SI_AC97_BUSY_WRITE; if (codec->id) mask |= SI_AC97_SECONDARY; break; } spin_lock_irqsave(&card->lock, flags); do { if ((inw(TRID_REG(card, address)) & busy) == 0) break; } while (count--); data |= (mask | (reg & AC97_REG_ADDR)); if (count == 0) { printk(KERN_ERR "trident: AC97 CODEC write timed out.\n"); spin_unlock_irqrestore(&card->lock, flags); return; } outl(data, TRID_REG(card, address)); spin_unlock_irqrestore(&card->lock, flags); } /* Read AC97 codec registers */ static u16 trident_ac97_get(struct ac97_codec *codec, u8 reg) { struct trident_card *card = (struct trident_card *)codec->private_data; unsigned int address, mask, busy; unsigned short count = 0xffff; unsigned long flags; u32 data; switch (card->pci_id) { default: case PCI_DEVICE_ID_SI_7018: address = SI_AC97_READ; mask = SI_AC97_BUSY_READ | SI_AC97_AUDIO_BUSY; if (codec->id) mask |= SI_AC97_SECONDARY; busy = SI_AC97_BUSY_READ; break; case PCI_DEVICE_ID_TRIDENT_4DWAVE_DX: address = DX_ACR1_AC97_R; mask = busy = DX_AC97_BUSY_READ; break; case PCI_DEVICE_ID_TRIDENT_4DWAVE_NX: if (codec->id) address = NX_ACR3_AC97_R_SECONDARY; else address = NX_ACR2_AC97_R_PRIMARY; mask = NX_AC97_BUSY_READ; busy = NX_AC97_BUSY_READ | NX_AC97_BUSY_DATA; break; case PCI_DEVICE_ID_INTERG_5050: address = SI_AC97_READ; mask = busy = SI_AC97_BUSY_READ; if (codec->id) mask |= SI_AC97_SECONDARY; break; } data = (mask | (reg & AC97_REG_ADDR)); spin_lock_irqsave(&card->lock, flags); outl(data, TRID_REG(card, address)); do { data = inl(TRID_REG(card, address)); if ((data & busy) == 0) break; } while (count--); spin_unlock_irqrestore(&card->lock, flags); if (count == 0) { printk(KERN_ERR "trident: AC97 CODEC read timed out.\n"); data = 0; } return ((u16) (data >> 16)); } /* Write AC97 codec registers for ALi*/ static void ali_ac97_set(struct trident_card *card, int secondary, u8 reg, u16 val) { unsigned int address, mask; unsigned int wCount1 = 0xffff; unsigned int wCount2= 0xffff; unsigned long chk1, chk2; unsigned long flags; u32 data; data = ((u32) val) << 16; if(!card) BUG(); address = ALI_AC97_WRITE; mask = ALI_AC97_WRITE_ACTION | ALI_AC97_AUDIO_BUSY; if (secondary) mask |= ALI_AC97_SECONDARY; if (card->revision == ALI_5451_V02) mask |= ALI_AC97_WRITE_MIXER_REGISTER; spin_lock_irqsave(&card->lock, flags); while (wCount1--) { if ((inw(TRID_REG(card, address)) & ALI_AC97_BUSY_WRITE) == 0) { data |= (mask | (reg & AC97_REG_ADDR)); chk1 = inl(TRID_REG(card, ALI_STIMER)); chk2 = inl(TRID_REG(card, ALI_STIMER)); while (wCount2-- && (chk1 == chk2)) chk2 = inl(TRID_REG(card, ALI_STIMER)); if (wCount2 == 0) { spin_unlock_irqrestore(&card->lock, flags); return; } outl(data, TRID_REG(card, address)); //write! spin_unlock_irqrestore(&card->lock, flags); return; //success } inw(TRID_REG(card, address)); //wait for a read cycle } printk(KERN_ERR "ali: AC97 CODEC write timed out.\n"); spin_unlock_irqrestore(&card->lock, flags); return; } /* Read AC97 codec registers for ALi*/ static u16 ali_ac97_get(struct trident_card *card, int secondary, u8 reg) { unsigned int address, mask; unsigned int wCount1 = 0xffff; unsigned int wCount2= 0xffff; unsigned long chk1, chk2; unsigned long flags; u32 data; if(!card) BUG(); address = ALI_AC97_READ; if (card->revision == ALI_5451_V02) { address = ALI_AC97_WRITE; } mask = ALI_AC97_READ_ACTION | ALI_AC97_AUDIO_BUSY; if (secondary) mask |= ALI_AC97_SECONDARY; spin_lock_irqsave(&card->lock, flags); data = (mask | (reg & AC97_REG_ADDR)); while (wCount1--) { if ((inw(TRID_REG(card, address)) & ALI_AC97_BUSY_READ) == 0) { chk1 = inl(TRID_REG(card, ALI_STIMER)); chk2 = inl(TRID_REG(card, ALI_STIMER)); while (wCount2-- && (chk1 == chk2)) chk2 = inl(TRID_REG(card, ALI_STIMER)); if (wCount2 == 0) { printk(KERN_ERR "ali: AC97 CODEC read timed out.\n"); spin_unlock_irqrestore(&card->lock, flags); return 0; } outl(data, TRID_REG(card, address)); //read! wCount2 = 0xffff; while (wCount2--) { if ((inw(TRID_REG(card, address)) & ALI_AC97_BUSY_READ) == 0) { data = inl(TRID_REG(card, address)); spin_unlock_irqrestore(&card->lock, flags); return ((u16) (data >> 16)); } } } inw(TRID_REG(card, address)); //wait a read cycle } spin_unlock_irqrestore(&card->lock, flags); printk(KERN_ERR "ali: AC97 CODEC read timed out.\n"); return 0; } static void ali_enable_special_channel(struct trident_state *stat) { struct trident_card *card = stat->card; unsigned long s_channels; s_channels = inl(TRID_REG(card, ALI_GLOBAL_CONTROL)); s_channels |= (1<<stat->dmabuf.channel->num); outl(s_channels, TRID_REG(card, ALI_GLOBAL_CONTROL)); } static u16 ali_ac97_read(struct ac97_codec *codec, u8 reg) { int id; u16 data; struct trident_card *card = NULL; /* Added by Matt Wu */ if (!codec) BUG(); card = (struct trident_card *)codec->private_data; if(!card->mixer_regs_ready) return ali_ac97_get(card, codec->id, reg); if(codec->id) id = 1; else id = 0; data = card->mixer_regs[reg/2][id]; return data; } static void ali_ac97_write(struct ac97_codec *codec, u8 reg, u16 val) { int id; struct trident_card *card; /* Added by Matt Wu */ if (!codec) BUG(); card = (struct trident_card *)codec->private_data; if (!card->mixer_regs_ready) { ali_ac97_set(card, codec->id, reg, val); return; } if(codec->id) id = 1; else id = 0; card->mixer_regs[reg/2][id] = val; ali_ac97_set(card, codec->id, reg, val); } /* flag: ALI_SPDIF_OUT_TO_SPDIF_OUT ALI_PCM_TO_SPDIF_OUT */ static void ali_setup_spdif_out(struct trident_card *card, int flag) { unsigned long spdif; unsigned char ch; char temp; struct pci_dev *pci_dev = NULL; pci_dev = pci_find_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, pci_dev); if (pci_dev == NULL) return; pci_read_config_byte(pci_dev, 0x61, &temp); temp |= 0x40; pci_write_config_byte(pci_dev, 0x61, temp); pci_read_config_byte(pci_dev, 0x7d, &temp); temp |= 0x01; pci_write_config_byte(pci_dev, 0x7d, temp); pci_read_config_byte(pci_dev, 0x7e, &temp); temp &= (~0x20); temp |= 0x10; pci_write_config_byte(pci_dev, 0x7e, temp); ch = inb(TRID_REG(card, ALI_SCTRL)); outb(ch | ALI_SPDIF_OUT_ENABLE, TRID_REG(card, ALI_SCTRL)); ch = inb(TRID_REG(card, ALI_SPDIF_CTRL)); outb(ch & ALI_SPDIF_OUT_CH_STATUS, TRID_REG(card, ALI_SPDIF_CTRL)); if (flag & ALI_SPDIF_OUT_TO_SPDIF_OUT) { spdif = inw(TRID_REG(card, ALI_GLOBAL_CONTROL)); spdif |= ALI_SPDIF_OUT_CH_ENABLE; spdif &= ALI_SPDIF_OUT_SEL_SPDIF; outw(spdif, TRID_REG(card, ALI_GLOBAL_CONTROL)); spdif = inw(TRID_REG(card, ALI_SPDIF_CS)); if (flag & ALI_SPDIF_OUT_NON_PCM) spdif |= 0x0002; else spdif &= (~0x0002); outw(spdif, TRID_REG(card, ALI_SPDIF_CS)); } else { spdif = inw(TRID_REG(card, ALI_GLOBAL_CONTROL)); spdif |= ALI_SPDIF_OUT_SEL_PCM; outw(spdif, TRID_REG(card, ALI_GLOBAL_CONTROL)); } } static void ali_disable_special_channel(struct trident_card *card, int ch) { unsigned long sc; sc = inl(TRID_REG(card, ALI_GLOBAL_CONTROL)); sc &= ~(1 << ch); outl(sc, TRID_REG(card, ALI_GLOBAL_CONTROL)); } static void ali_disable_spdif_in(struct trident_card *card) { unsigned long spdif; spdif = inl(TRID_REG(card, ALI_GLOBAL_CONTROL)); spdif &= (~ALI_SPDIF_IN_SUPPORT); outl(spdif, TRID_REG(card, ALI_GLOBAL_CONTROL)); ali_disable_special_channel(card, ALI_SPDIF_IN_CHANNEL); } static void ali_setup_spdif_in(struct trident_card *card) { unsigned long spdif; //Set SPDIF IN Supported spdif = inl(TRID_REG(card, ALI_GLOBAL_CONTROL)); spdif |= ALI_SPDIF_IN_SUPPORT; outl(spdif, TRID_REG(card, ALI_GLOBAL_CONTROL)); //Set SPDIF IN Rec spdif = inl(TRID_REG(card, ALI_GLOBAL_CONTROL)); spdif |= ALI_SPDIF_IN_CH_ENABLE; outl(spdif, TRID_REG(card, ALI_GLOBAL_CONTROL)); spdif = inb(TRID_REG(card, ALI_SPDIF_CTRL)); spdif |= ALI_SPDIF_IN_CH_STATUS; outb(spdif, TRID_REG(card, ALI_SPDIF_CTRL)); /* spdif = inb(TRID_REG(card, ALI_SPDIF_CTRL)); spdif |= ALI_SPDIF_IN_FUNC_ENABLE; outb(spdif, TRID_REG(card, ALI_SPDIF_CTRL)); */ } static void ali_delay(struct trident_card *card,int interval) { unsigned long begintimer,currenttimer; begintimer = inl(TRID_REG(card, ALI_STIMER)); currenttimer = inl(TRID_REG(card, ALI_STIMER)); while (currenttimer < begintimer + interval) currenttimer = inl(TRID_REG(card, ALI_STIMER)); } static void ali_detect_spdif_rate(struct trident_card *card) { u16 wval = 0; u16 count = 0; u8 bval = 0, R1 = 0, R2 = 0; bval = inb(TRID_REG(card,ALI_SPDIF_CTRL)); bval |= 0x02; outb(bval,TRID_REG(card,ALI_SPDIF_CTRL)); bval = inb(TRID_REG(card,ALI_SPDIF_CTRL + 1)); bval |= 0x1F; outb(bval,TRID_REG(card,ALI_SPDIF_CTRL + 1)); while (((R1 < 0x0B )||(R1 > 0x0E)) && (R1 != 0x12) && count <= 50000) { count ++; ali_delay(card, 6); bval = inb(TRID_REG(card,ALI_SPDIF_CTRL + 1)); R1 = bval & 0x1F; } if (count > 50000) { printk(KERN_WARNING "trident: Error in ali_detect_spdif_rate!\n"); return; } count = 0; while (count <= 50000) { count ++; ali_delay(card, 6); bval = inb(TRID_REG(card,ALI_SPDIF_CTRL + 1)); R2 = bval & 0x1F; if(R2 != R1) R1 = R2; else break; } if (count > 50000) { printk(KERN_WARNING "trident: Error in ali_detect_spdif_rate!\n"); return; } switch (R2) { case 0x0b: case 0x0c: case 0x0d: case 0x0e: wval = inw(TRID_REG(card,ALI_SPDIF_CTRL + 2)); wval &= 0xE0F0; wval |= (u16)0x09 << 8 | (u16)0x05; outw(wval,TRID_REG(card,ALI_SPDIF_CTRL + 2)); bval = inb(TRID_REG(card,ALI_SPDIF_CS +3)) & 0xF0; outb(bval|0x02,TRID_REG(card,ALI_SPDIF_CS + 3)); break; case 0x12: wval = inw(TRID_REG(card,ALI_SPDIF_CTRL + 2)); wval &= 0xE0F0; wval |= (u16)0x0E << 8 | (u16)0x08; outw(wval,TRID_REG(card,ALI_SPDIF_CTRL + 2)); bval = inb(TRID_REG(card,ALI_SPDIF_CS +3)) & 0xF0; outb(bval|0x03,TRID_REG(card,ALI_SPDIF_CS + 3)); break; default: break; } } static unsigned int ali_get_spdif_in_rate(struct trident_card *card) { u32 dwRate = 0; u8 bval = 0; ali_detect_spdif_rate(card); bval = inb(TRID_REG(card,ALI_SPDIF_CTRL)); bval &= 0x7F; bval |= 0x40; outb(bval,TRID_REG(card,ALI_SPDIF_CTRL)); bval = inb(TRID_REG(card,ALI_SPDIF_CS + 3)); bval &= 0x0F; switch (bval) { case 0: dwRate = 44100; break; case 1: dwRate = 48000; break; case 2: dwRate = 32000; break; default: // Error occurs break; } return dwRate; } static int ali_close_multi_channels(void) { char temp = 0; struct pci_dev *pci_dev = NULL; pci_dev = pci_find_device(PCI_VENDOR_ID_AL,PCI_DEVICE_ID_AL_M1533, pci_dev); if (pci_dev == NULL) return -1; temp = 0x80; pci_write_config_byte(pci_dev, 0x59, ~temp); pci_dev = pci_find_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101, pci_dev); if (pci_dev == NULL) return -1; temp = 0x20; pci_write_config_byte(pci_dev, 0xB8, ~temp); return 0; } static int ali_setup_multi_channels(struct trident_card *card, int chan_nums) { unsigned long dwValue; char temp = 0; struct pci_dev *pci_dev = NULL; pci_dev = pci_find_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, pci_dev); if (pci_dev == NULL) return -1; temp = 0x80; pci_write_config_byte(pci_dev, 0x59, temp); pci_dev = pci_find_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101, pci_dev); if (pci_dev == NULL) return -1; temp = 0x20; pci_write_config_byte(pci_dev, (int)0xB8,(u8) temp); if (chan_nums == 6) { dwValue = inl(TRID_REG(card, ALI_SCTRL)) | 0x000f0000; outl(dwValue, TRID_REG(card, ALI_SCTRL)); mdelay(4); dwValue = inl(TRID_REG(card, ALI_SCTRL)); if (dwValue & 0x2000000) { ali_ac97_write(card->ac97_codec[0], 0x02, 8080); ali_ac97_write(card->ac97_codec[0], 0x36, 0); ali_ac97_write(card->ac97_codec[0], 0x38, 0); ali_ac97_write(card->ac97_codec[1], 0x36, 0); ali_ac97_write(card->ac97_codec[1], 0x38, 0); ali_ac97_write(card->ac97_codec[1], 0x02, 0x0606); ali_ac97_write(card->ac97_codec[1], 0x18, 0x0303); ali_ac97_write(card->ac97_codec[1], 0x74, 0x3); return 1; } } return -EINVAL; } static void ali_free_pcm_channel(struct trident_card *card, unsigned int channel) { int bank; if (channel > 31) return; bank = channel >> 5; channel = channel & 0x1f; card->banks[bank].bitmap &= ~(1 << (channel)); } static int ali_allocate_other_states_resources(struct trident_state *state, int chan_nums) { struct trident_card *card = state->card; struct trident_state *s; int i, state_count = 0; struct trident_pcm_bank *bank; struct trident_channel *channel; bank = &card->banks[BANK_A]; if (chan_nums == 6) { for(i = 0;(i < ALI_CHANNELS) && (state_count != 4); i++) { if (!card->states[i]) { if (!(bank->bitmap & (1 << ali_multi_channels_5_1[state_count]))) { bank->bitmap |= (1 << ali_multi_channels_5_1[state_count]); channel = &bank->channels[ali_multi_channels_5_1[state_count]]; channel->num = ali_multi_channels_5_1[state_count]; } else { state_count--; for (; state_count >= 0; state_count--) { kfree(state->other_states[state_count]); ali_free_pcm_channel(card, ali_multi_channels_5_1[state_count]); } return -EBUSY; } s = card->states[i] = (struct trident_state *) kmalloc(sizeof(struct trident_state), GFP_KERNEL); if (!s) { ali_free_pcm_channel(card, ali_multi_channels_5_1[state_count]); state_count--; for (; state_count >= 0; state_count--) { ali_free_pcm_channel(card, ali_multi_channels_5_1[state_count]); kfree(state->other_states[state_count]); } return -ENOMEM; } memset(s, 0, sizeof(struct trident_state)); s->dmabuf.channel = channel; s->dmabuf.ossfragshift = s->dmabuf.ossmaxfrags = s->dmabuf.subdivision = 0; init_waitqueue_head(&s->dmabuf.wait); s->magic = card->magic; s->card = card; s->virt = i; ali_enable_special_channel(s); state->other_states[state_count++] = s; } } if (state_count != 4) { state_count--; for (; state_count >= 0; state_count--) { kfree(state->other_states[state_count]); ali_free_pcm_channel(card, ali_multi_channels_5_1[state_count]); } return -EBUSY; } } return 0; } static void ali_save_regs(struct trident_card *card) { unsigned long flags; int i, j; save_flags(flags); cli(); ali_registers.global_regs[0x2c] = inl(TRID_REG(card,T4D_MISCINT)); //ali_registers.global_regs[0x20] = inl(TRID_REG(card,T4D_START_A)); ali_registers.global_regs[0x21] = inl(TRID_REG(card,T4D_STOP_A)); //disable all IRQ bits outl(ALI_DISABLE_ALL_IRQ, TRID_REG(card, T4D_MISCINT)); for (i = 1; i < ALI_MIXER_REGS; i++) ali_registers.mixer_regs[i] = ali_ac97_read (card->ac97_codec[0], i*2); for (i = 0; i < ALI_GLOBAL_REGS; i++) { if ((i*4 == T4D_MISCINT) || (i*4 == T4D_STOP_A)) continue; ali_registers.global_regs[i] = inl(TRID_REG(card, i*4)); } for (i = 0; i < ALI_CHANNELS; i++) { outb(i,TRID_REG(card, T4D_LFO_GC_CIR)); for (j = 0; j < ALI_CHANNEL_REGS; j++) ali_registers.channel_regs[i][j] = inl(TRID_REG(card, j*4 + 0xe0)); } //Stop all HW channel outl(ALI_STOP_ALL_CHANNELS, TRID_REG(card, T4D_STOP_A)); restore_flags(flags); } static void ali_restore_regs(struct trident_card *card) { unsigned long flags; int i, j; save_flags(flags); cli(); for (i = 1; i < ALI_MIXER_REGS; i++) ali_ac97_write(card->ac97_codec[0], i*2, ali_registers.mixer_regs[i]); for (i = 0; i < ALI_CHANNELS; i++) { outb(i,TRID_REG(card, T4D_LFO_GC_CIR)); for (j = 0; j < ALI_CHANNEL_REGS; j++) outl(ali_registers.channel_regs[i][j], TRID_REG(card, j*4 + 0xe0)); } for (i = 0; i < ALI_GLOBAL_REGS; i++) { if ((i*4 == T4D_MISCINT) || (i*4 == T4D_STOP_A) || (i*4 == T4D_START_A)) continue; outl(ali_registers.global_regs[i], TRID_REG(card, i*4)); } //start HW channel outl(ali_registers.global_regs[0x20], TRID_REG(card,T4D_START_A)); //restore IRQ enable bits outl(ali_registers.global_regs[0x2c], TRID_REG(card,T4D_MISCINT)); restore_flags(flags); } static int trident_suspend(struct pci_dev *dev, u32 unused) { struct trident_card *card = (struct trident_card *) dev; if(card->pci_id == PCI_DEVICE_ID_ALI_5451) { ali_save_regs(card); } return 0; } static int trident_resume(struct pci_dev *dev) { struct trident_card *card = (struct trident_card *) dev; if(card->pci_id == PCI_DEVICE_ID_ALI_5451) { ali_restore_regs(card); } return 0; } static struct trident_channel *ali_alloc_pcm_channel(struct trident_card *card) { struct trident_pcm_bank *bank; int idx; bank = &card->banks[BANK_A]; if (inl(TRID_REG(card, ALI_GLOBAL_CONTROL)) & (ALI_SPDIF_OUT_CH_ENABLE)) { idx = ALI_SPDIF_OUT_CHANNEL; if (!(bank->bitmap & (1 << idx))) { struct trident_channel *channel = &bank->channels[idx]; bank->bitmap |= 1 << idx; channel->num = idx; return channel; } } for (idx = ALI_PCM_OUT_CHANNEL_FIRST; idx <= ALI_PCM_OUT_CHANNEL_LAST ; idx++) { if (!(bank->bitmap & (1 << idx))) { struct trident_channel *channel = &bank->channels[idx]; bank->bitmap |= 1 << idx; channel->num = idx; return channel; } } /* no more free channels avaliable */ // printk(KERN_ERR "ali: no more channels available on Bank A.\n"); return NULL; } static struct trident_channel *ali_alloc_rec_pcm_channel(struct trident_card *card) { struct trident_pcm_bank *bank; int idx; if (inl(TRID_REG(card, ALI_GLOBAL_CONTROL)) & ALI_SPDIF_IN_SUPPORT) idx = ALI_SPDIF_IN_CHANNEL; else idx = ALI_PCM_IN_CHANNEL; bank = &card->banks[BANK_A]; if (!(bank->bitmap & (1 << idx))) { struct trident_channel *channel = &bank->channels[idx]; bank->bitmap |= 1 << idx; channel->num = idx; return channel; } /* no free recordable channels avaliable */ // printk(KERN_ERR "ali: no recordable channels available on Bank A.\n"); return NULL; } static void ali_set_spdif_out_rate(struct trident_card *card, unsigned int rate) { unsigned char ch_st_sel; unsigned short status_rate; switch(rate) { case 44100: status_rate = 0; break; case 32000: status_rate = 0x300; break; case 48000: default: status_rate = 0x200; break; } ch_st_sel = inb(TRID_REG(card, ALI_SPDIF_CTRL)) & ALI_SPDIF_OUT_CH_STATUS; //select spdif_out ch_st_sel |= 0x80; //select right outb(ch_st_sel, TRID_REG(card, ALI_SPDIF_CTRL)); outb(status_rate | 0x20, TRID_REG(card, ALI_SPDIF_CS + 2)); ch_st_sel &= (~0x80); //select left outb(ch_st_sel, TRID_REG(card, ALI_SPDIF_CTRL)); outw(status_rate | 0x10, TRID_REG(card, ALI_SPDIF_CS + 2)); } static void ali_address_interrupt(struct trident_card *card) { int i, channel; struct trident_state *state; u32 mask, channel_mask; mask = trident_get_interrupt_mask (card, 0); for (i = 0; i < NR_HW_CH; i++) { if ((state = card->states[i]) == NULL) continue; channel = state->dmabuf.channel->num; if ((channel_mask = 1 << channel) & mask) { mask &= ~channel_mask; trident_ack_channel_interrupt(card, channel); udelay(100); state->dmabuf.update_flag |= ALI_ADDRESS_INT_UPDATE; trident_update_ptr(state); } } if (mask) { for (i = 0; i < NR_HW_CH; i++) { if (mask & (1 << i)) { printk("ali: spurious channel irq %d.\n", i); trident_ack_channel_interrupt(card, i); trident_stop_voice(card, i); trident_disable_voice_irq(card, i); } } } } /* Updating the values of counters of other_states' DMAs without lock protection is no harm because all DMAs of multi-channels and interrupt depend on a master state's DMA, and changing the counters of the master state DMA is protected by a spinlock. */ static int ali_write_5_1(struct trident_state *state, const char *buf, int cnt_for_multi_channel, unsigned int *copy_count, unsigned int *state_cnt) { struct dmabuf *dmabuf = &state->dmabuf; struct dmabuf *dmabuf_temp; const char *buffer = buf; unsigned swptr, other_dma_nums, sample_s; unsigned int i, loop; other_dma_nums = 4; sample_s = sample_size[dmabuf->fmt] >> 1; swptr = dmabuf->swptr; if ((i = state->multi_channels_adjust_count) > 0) { if (i == 1) { if (copy_from_user(dmabuf->rawbuf + swptr, buffer, sample_s)) return -EFAULT; seek_offset(swptr, buffer, cnt_for_multi_channel, sample_s, *copy_count); i--; (*state_cnt) += sample_s; state->multi_channels_adjust_count++; } else i = i - (state->chans_num - other_dma_nums); for (; (i < other_dma_nums) && (cnt_for_multi_channel > 0); i++) { dmabuf_temp = &state->other_states[i]->dmabuf; if (copy_from_user(dmabuf_temp->rawbuf + dmabuf_temp->swptr, buffer, sample_s)) return -EFAULT; seek_offset(dmabuf_temp->swptr, buffer, cnt_for_multi_channel, sample_s, *copy_count); } if (cnt_for_multi_channel == 0) state->multi_channels_adjust_count += i; } if (cnt_for_multi_channel > 0) { loop = cnt_for_multi_channel / (state->chans_num * sample_s); for (i = 0; i < loop; i++) { if (copy_from_user(dmabuf->rawbuf + swptr, buffer, sample_s * 2)) return -EFAULT; seek_offset(swptr, buffer, cnt_for_multi_channel, sample_s * 2, *copy_count); (*state_cnt) += (sample_s * 2); dmabuf_temp = &state->other_states[0]->dmabuf; if (copy_from_user(dmabuf_temp->rawbuf + dmabuf_temp->swptr, buffer, sample_s)) return -EFAULT; seek_offset(dmabuf_temp->swptr, buffer, cnt_for_multi_channel, sample_s, *copy_count); dmabuf_temp = &state->other_states[1]->dmabuf; if (copy_from_user(dmabuf_temp->rawbuf + dmabuf_temp->swptr, buffer, sample_s)) return -EFAULT; seek_offset(dmabuf_temp->swptr, buffer, cnt_for_multi_channel, sample_s, *copy_count); dmabuf_temp = &state->other_states[2]->dmabuf; if (copy_from_user(dmabuf_temp->rawbuf + dmabuf_temp->swptr, buffer, sample_s)) return -EFAULT; seek_offset(dmabuf_temp->swptr, buffer, cnt_for_multi_channel, sample_s, *copy_count); dmabuf_temp = &state->other_states[3]->dmabuf; if (copy_from_user(dmabuf_temp->rawbuf + dmabuf_temp->swptr, buffer, sample_s)) return -EFAULT; seek_offset(dmabuf_temp->swptr, buffer, cnt_for_multi_channel, sample_s, *copy_count); } if (cnt_for_multi_channel > 0) { state->multi_channels_adjust_count = cnt_for_multi_channel / sample_s; if (copy_from_user(dmabuf->rawbuf + swptr, buffer, sample_s)) return -EFAULT; seek_offset(swptr, buffer, cnt_for_multi_channel, sample_s, *copy_count); (*state_cnt) += sample_s; if (cnt_for_multi_channel > 0) { if (copy_from_user(dmabuf->rawbuf + swptr, buffer, sample_s)) return -EFAULT; seek_offset(swptr, buffer, cnt_for_multi_channel, sample_s, *copy_count); (*state_cnt) += sample_s; if (cnt_for_multi_channel > 0) { loop = state->multi_channels_adjust_count - (state->chans_num - other_dma_nums); for (i = 0; i < loop; i++) { dmabuf_temp = &state->other_states[i]->dmabuf; if (copy_from_user(dmabuf_temp->rawbuf + dmabuf_temp->swptr, buffer, sample_s)) return -EFAULT; seek_offset(dmabuf_temp->swptr, buffer, cnt_for_multi_channel, sample_s, *copy_count); } } } } else state->multi_channels_adjust_count = 0; } for (i = 0; i < other_dma_nums; i++) { dmabuf_temp = &state->other_states[i]->dmabuf; dmabuf_temp->swptr = dmabuf_temp->swptr % dmabuf_temp->dmasize; } return *state_cnt; } static void ali_free_other_states_resources(struct trident_state *state) { int i; struct trident_card *card = state->card; struct trident_state *s; unsigned other_states_count; other_states_count = state->chans_num - 2; /* except PCM L/R channels*/ for ( i = 0; i < other_states_count; i++) { s = state->other_states[i]; dealloc_dmabuf(s); ali_disable_special_channel(s->card, s->dmabuf.channel->num); state->card->free_pcm_channel(s->card, s->dmabuf.channel->num); card->states[s->virt] = NULL; kfree(s); } } #ifdef CONFIG_PROC_FS struct proc_dir_entry *res = NULL; static int ali_write_proc(struct file *file, const char *buffer, unsigned long count, void *data) { struct trident_card *card = (struct trident_card *)data; unsigned long flags; char c; if (count<0) return -EINVAL; if (count == 0) return 0; if (get_user(c, buffer)) return -EFAULT; spin_lock_irqsave(&card->lock, flags); switch (c) { case '0': ali_setup_spdif_out(card, ALI_PCM_TO_SPDIF_OUT); ali_disable_special_channel(card, ALI_SPDIF_OUT_CHANNEL); break; case '1': ali_setup_spdif_out(card, ALI_SPDIF_OUT_TO_SPDIF_OUT|ALI_SPDIF_OUT_PCM); break; case '2': ali_setup_spdif_out(card, ALI_SPDIF_OUT_TO_SPDIF_OUT|ALI_SPDIF_OUT_NON_PCM); break; case '3': ali_disable_spdif_in(card); //default break; case '4': ali_setup_spdif_in(card); break; } spin_unlock_irqrestore(&card->lock, flags); return count; } #endif /* OSS /dev/mixer file operation methods */ static int trident_open_mixdev(struct inode *inode, struct file *file) { int i = 0; int minor = MINOR(inode->i_rdev); struct trident_card *card = devs; for (card = devs; card != NULL; card = card->next) for (i = 0; i < NR_AC97; i++) if (card->ac97_codec[i] != NULL && card->ac97_codec[i]->dev_mixer == minor) goto match; if (!card) { return -ENODEV; } match: file->private_data = card->ac97_codec[i]; return 0; } static int trident_ioctl_mixdev(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) { struct ac97_codec *codec = (struct ac97_codec *)file->private_data; return codec->mixer_ioctl(codec, cmd, arg); } static /*const*/ struct file_operations trident_mixer_fops = { owner: THIS_MODULE, llseek: no_llseek, ioctl: trident_ioctl_mixdev, open: trident_open_mixdev, }; static int ali_reset_5451(struct trident_card *card) { struct pci_dev *pci_dev = NULL; unsigned int dwVal; unsigned short wCount, wReg; pci_dev = pci_find_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, pci_dev); if (pci_dev == NULL) return -1; pci_read_config_dword(pci_dev, 0x7c, &dwVal); pci_write_config_dword(pci_dev, 0x7c, dwVal | 0x08000000); udelay(5000); pci_read_config_dword(pci_dev, 0x7c, &dwVal); pci_write_config_dword(pci_dev, 0x7c, dwVal & 0xf7ffffff); udelay(5000); pci_dev = card->pci_dev; if (pci_dev == NULL) return -1; pci_read_config_dword(pci_dev, 0x44, &dwVal); pci_write_config_dword(pci_dev, 0x44, dwVal | 0x000c0000); udelay(500); pci_read_config_dword(pci_dev, 0x44, &dwVal); pci_write_config_dword(pci_dev, 0x44, dwVal & 0xfffbffff); udelay(5000); wCount = 200; while(wCount--) { wReg = ali_ac97_get(card, 0, AC97_POWER_CONTROL); if((wReg & 0x000f) == 0x000f) return 0; udelay(500); } return 0; } /* AC97 codec initialisation. */ static int __init trident_ac97_init(struct trident_card *card) { int num_ac97 = 0; unsigned long ready_2nd = 0; struct ac97_codec *codec; int i = 0; /* initialize controller side of AC link, and find out if secondary codes really exist */ switch (card->pci_id) { case PCI_DEVICE_ID_ALI_5451: if (ali_reset_5451(card)) { printk(KERN_ERR "trident_ac97_init: error resetting 5451.\n"); return -1; } outl(0x80000001,TRID_REG(card, ALI_GLOBAL_CONTROL)); outl(0x00000000,TRID_REG(card, T4D_AINTEN_A)); outl(0xffffffff,TRID_REG(card, T4D_AINT_A)); outl(0x00000000,TRID_REG(card, T4D_MUSICVOL_WAVEVOL)); outb(0x10, TRID_REG(card, ALI_MPUR2)); ready_2nd = inl(TRID_REG(card, ALI_SCTRL)); ready_2nd &= 0x3fff; outl(ready_2nd | PCMOUT | 0x8000, TRID_REG(card, ALI_SCTRL)); ready_2nd = inl(TRID_REG(card, ALI_SCTRL)); ready_2nd &= SI_AC97_SECONDARY_READY; if (card->revision < ALI_5451_V02) ready_2nd = 0; break; case PCI_DEVICE_ID_SI_7018: /* disable AC97 GPIO interrupt */ outl(0x00, TRID_REG(card, SI_AC97_GPIO)); /* when power up the AC link is in cold reset mode so stop it */ outl(PCMOUT|SURROUT|CENTEROUT|LFEOUT|SECONDARY_ID, TRID_REG(card, SI_SERIAL_INTF_CTRL)); /* it take a long time to recover from a cold reset (especially when you have more than one codec) */ udelay(2000); ready_2nd = inl(TRID_REG(card, SI_SERIAL_INTF_CTRL)); ready_2nd &= SI_AC97_SECONDARY_READY; break; case PCI_DEVICE_ID_TRIDENT_4DWAVE_DX: /* playback on */ outl(DX_AC97_PLAYBACK, TRID_REG(card, DX_ACR2_AC97_COM_STAT)); break; case PCI_DEVICE_ID_TRIDENT_4DWAVE_NX: /* enable AC97 Output Slot 3,4 (PCM Left/Right Playback) */ outl(NX_AC97_PCM_OUTPUT, TRID_REG(card, NX_ACR0_AC97_COM_STAT)); ready_2nd = inl(TRID_REG(card, NX_ACR0_AC97_COM_STAT)); ready_2nd &= NX_AC97_SECONDARY_READY; break; case PCI_DEVICE_ID_INTERG_5050: /* disable AC97 GPIO interrupt */ outl(0x00, TRID_REG(card, SI_AC97_GPIO)); /* when power up, the AC link is in cold reset mode, so stop it */ outl(PCMOUT|SURROUT|CENTEROUT|LFEOUT, TRID_REG(card, SI_SERIAL_INTF_CTRL)); /* it take a long time to recover from a cold reset (especially when you have more than one codec) */ udelay(2000); ready_2nd = inl(TRID_REG(card, SI_SERIAL_INTF_CTRL)); ready_2nd &= SI_AC97_SECONDARY_READY; break; } for (num_ac97 = 0; num_ac97 < NR_AC97; num_ac97++) { if ((codec = kmalloc(sizeof(struct ac97_codec), GFP_KERNEL)) == NULL) return -ENOMEM; memset(codec, 0, sizeof(struct ac97_codec)); /* initialize some basic codec information, other fields will be filled in ac97_probe_codec */ codec->private_data = card; codec->id = num_ac97; if (card->pci_id == PCI_DEVICE_ID_ALI_5451) { codec->codec_read = ali_ac97_read; codec->codec_write = ali_ac97_write; } else { codec->codec_read = trident_ac97_get; codec->codec_write = trident_ac97_set; } if (ac97_probe_codec(codec) == 0) break; if ((codec->dev_mixer = register_sound_mixer(&trident_mixer_fops, -1)) < 0) { printk(KERN_ERR "trident: couldn't register mixer!\n"); kfree(codec); break; } card->ac97_codec[num_ac97] = codec; /* if there is no secondary codec at all, don't probe any more */ if (!ready_2nd) break; } if (card->pci_id == PCI_DEVICE_ID_ALI_5451) { for (num_ac97 = 0; num_ac97 < NR_AC97; num_ac97++) { if (card->ac97_codec[num_ac97] == NULL) break; for (i=0; i<64;i++) card->mixer_regs[i][num_ac97] = ali_ac97_get(card, num_ac97,i*2); } } return num_ac97+1; } /* install the driver, we do not allocate hardware channel nor DMA buffer now, they are defered until "ACCESS" time (in prog_dmabuf called by open/read/write/ioctl/mmap) */ static int __init trident_probe(struct pci_dev *pci_dev, const struct pci_device_id *pci_id) { unsigned long iobase; struct trident_card *card; dma_addr_t mask; u8 bits; u8 revision; int i = 0; u16 temp; struct pci_dev *pci_dev_m1533 = NULL; if (pci_enable_device(pci_dev)) return -ENODEV; if (pci_set_dma_mask(pci_dev, TRIDENT_DMA_MASK)) { printk(KERN_ERR "trident: architecture does not support" " 30bit PCI busmaster DMA\n"); return -ENODEV; } pci_read_config_byte(pci_dev, PCI_CLASS_REVISION, &revision); if (pci_id->device == PCI_DEVICE_ID_INTERG_5050) iobase = pci_resource_start(pci_dev, 1); else iobase = pci_resource_start(pci_dev, 0); if (check_region(iobase, 256)) { printk(KERN_ERR "trident: can't allocate I/O space at 0x%4.4lx\n", iobase); return -ENODEV; } if ((card = kmalloc(sizeof(struct trident_card), GFP_KERNEL)) == NULL) { printk(KERN_ERR "trident: out of memory\n"); return -ENOMEM; } memset(card, 0, sizeof(*card)); card->iobase = iobase; card->pci_dev = pci_dev; card->pci_id = pci_id->device; card->revision = revision; card->irq = pci_dev->irq; card->next = devs; card->magic = TRIDENT_CARD_MAGIC; card->banks[BANK_A].addresses = &bank_a_addrs; card->banks[BANK_A].bitmap = 0UL; card->banks[BANK_B].addresses = &bank_b_addrs; card->banks[BANK_B].bitmap = 0UL; init_MUTEX(&card->open_sem); spin_lock_init(&card->lock); init_timer(&card->timer); devs = card; pci_set_master(pci_dev); printk(KERN_INFO "trident: %s found at IO 0x%04lx, IRQ %d\n", card_names[pci_id->driver_data], card->iobase, card->irq); if(card->pci_id == PCI_DEVICE_ID_ALI_5451) { /* ALi channel Management */ card->alloc_pcm_channel = ali_alloc_pcm_channel; card->alloc_rec_pcm_channel = ali_alloc_rec_pcm_channel; card->free_pcm_channel = ali_free_pcm_channel; card->address_interrupt = ali_address_interrupt; /* Added by Matt Wu 01-05-2001 for spdif in */ card->multi_channel_use_count = 0; card->rec_channel_use_count = 0; /* ALi SPDIF OUT function */ if(card->revision == ALI_5451_V02) { ali_setup_spdif_out(card, ALI_PCM_TO_SPDIF_OUT); #ifdef CONFIG_PROC_FS res = create_proc_entry("ALi5451", 0, NULL); if (res) { res->write_proc = ali_write_proc; res->data = card; } #endif } /* Add H/W Volume Control By Matt Wu Jul. 06, 2001 */ card->hwvolctl = 0; pci_dev_m1533 = pci_find_device(PCI_VENDOR_ID_AL,PCI_DEVICE_ID_AL_M1533, pci_dev_m1533); if (pci_dev_m1533 == NULL) return -ENODEV; pci_read_config_byte(pci_dev_m1533, 0x63, &bits); if (bits & (1<<5)) card->hwvolctl = 1; if (card->hwvolctl) { /* Clear m1533 pci cfg 78h bit 30 to zero, which makes GPIO11/12/13 work as ACGP_UP/DOWN/MUTE. */ pci_read_config_byte(pci_dev_m1533, 0x7b, &bits); bits &= 0xbf; /*clear bit 6 */ pci_write_config_byte(pci_dev_m1533, 0x7b, bits); } } else if(card->pci_id == PCI_DEVICE_ID_INTERG_5050) { card->alloc_pcm_channel = cyber_alloc_pcm_channel; card->alloc_rec_pcm_channel = cyber_alloc_pcm_channel; card->free_pcm_channel = cyber_free_pcm_channel; card->address_interrupt = cyber_address_interrupt; cyber_init_ritual(card); } else { card->alloc_pcm_channel = trident_alloc_pcm_channel; card->alloc_rec_pcm_channel = trident_alloc_pcm_channel; card->free_pcm_channel = trident_free_pcm_channel; card->address_interrupt = trident_address_interrupt; } /* claim our iospace and irq */ request_region(card->iobase, 256, card_names[pci_id->driver_data]); if (request_irq(card->irq, &trident_interrupt, SA_SHIRQ, card_names[pci_id->driver_data], card)) { printk(KERN_ERR "trident: unable to allocate irq %d\n", card->irq); release_region(card->iobase, 256); kfree(card); return -ENODEV; } /* register /dev/dsp */ if ((card->dev_audio = register_sound_dsp(&trident_audio_fops, -1)) < 0) { printk(KERN_ERR "trident: couldn't register DSP device!\n"); release_region(iobase, 256); free_irq(card->irq, card); kfree(card); return -ENODEV; } card->mixer_regs_ready = 0; /* initialize AC97 codec and register /dev/mixer */ if (trident_ac97_init(card) <= 0) { /* unregister audio devices */ for (i = 0; i < NR_AC97; i++) { if (card->ac97_codec[i] != NULL) { unregister_sound_mixer(card->ac97_codec[i]->dev_mixer); kfree (card->ac97_codec[i]); } } unregister_sound_dsp(card->dev_audio); release_region(iobase, 256); free_irq(card->irq, card); kfree(card); return -ENODEV; } card->mixer_regs_ready = 1; outl(0x00, TRID_REG(card, T4D_MUSICVOL_WAVEVOL)); if (card->pci_id == PCI_DEVICE_ID_ALI_5451) { /* Add H/W Volume Control By Matt Wu Jul. 06, 2001 */ if(card->hwvolctl) { /* Enable GPIO IRQ (MISCINT bit 18h)*/ temp = inw(TRID_REG(card, T4D_MISCINT + 2)); temp |= 0x0004; outw(temp, TRID_REG(card, T4D_MISCINT + 2)); /* Enable H/W Volume Control GLOVAL CONTROL bit 0*/ temp = inw(TRID_REG(card, ALI_GLOBAL_CONTROL)); temp |= 0x0001; outw(temp, TRID_REG(card, ALI_GLOBAL_CONTROL)); } if(card->revision == ALI_5451_V02) ali_close_multi_channels(); /* edited by HMSEO for GT sound */ #if defined CONFIG_ALPHA_NAUTILUS || CONFIG_ALPHA_GENERIC { u16 ac97_data; extern struct hwrpb_struct *hwrpb; if ((hwrpb->sys_type) == 201) { printk(KERN_INFO "trident: Running on Alpha system type Nautilus\n"); ac97_data = ali_ac97_get(card, 0, AC97_POWER_CONTROL); ali_ac97_set(card, 0, AC97_POWER_CONTROL, ac97_data | } } #endif /* edited by HMSEO for GT sound*/ } pci_set_drvdata(pci_dev, card); /* Enable Address Engine Interrupts */ trident_enable_loop_interrupts(card); return 0; } static void __exit trident_remove(struct pci_dev *pci_dev) { int i; struct trident_card *card = pci_get_drvdata(pci_dev); /* * Kill running timers before unload. We can't have them * going off after rmmod! */ if(card->hwvolctl) del_timer_sync(&card->timer); /* ALi S/PDIF and Power Management */ if(card->pci_id == PCI_DEVICE_ID_ALI_5451) { ali_setup_spdif_out(card, ALI_PCM_TO_SPDIF_OUT); ali_disable_special_channel(card, ALI_SPDIF_OUT_CHANNEL); ali_disable_spdif_in(card); #ifdef CONFIG_PROC_FS remove_proc_entry("ALi5451", NULL); #endif } /* Kill interrupts, and SP/DIF */ trident_disable_loop_interrupts(card); /* free hardware resources */ free_irq(card->irq, card); release_region(card->iobase, 256); /* unregister audio devices */ for (i = 0; i < NR_AC97; i++) if (card->ac97_codec[i] != NULL) { unregister_sound_mixer(card->ac97_codec[i]->dev_mixer); kfree (card->ac97_codec[i]); } unregister_sound_dsp(card->dev_audio); kfree(card); pci_set_drvdata(pci_dev, NULL); } MODULE_AUTHOR("Alan Cox, Aaron Holtzman, Ollie Lho, Ching Ling Lee"); MODULE_DESCRIPTION("Trident 4DWave/SiS 7018/ALi 5451 and Tvia/IGST CyberPro5050 PCI Audio Driver"); #define TRIDENT_MODULE_NAME "trident" static struct pci_driver trident_pci_driver = { name: TRIDENT_MODULE_NAME, id_table: trident_pci_tbl, probe: trident_probe, remove: trident_remove, suspend: trident_suspend, resume: trident_resume }; static int __init trident_init_module (void) { if (!pci_present()) /* No PCI bus in this machine! */ return -ENODEV; printk(KERN_INFO "Trident 4DWave/SiS 7018/ALi 5451,Tvia CyberPro 5050 PCI Audio, version " DRIVER_VERSION ", " __TIME__ " " __DATE__ "\n"); if (!pci_register_driver(&trident_pci_driver)) { pci_unregister_driver(&trident_pci_driver); return -ENODEV; } return 0; } static void __exit trident_cleanup_module (void) { pci_unregister_driver(&trident_pci_driver); } module_init(trident_init_module); module_exit(trident_cleanup_module); |