diff options
Diffstat (limited to 'sound/oss/trident.c')
| -rw-r--r-- | sound/oss/trident.c | 4628 |
1 files changed, 4628 insertions, 0 deletions
diff --git a/sound/oss/trident.c b/sound/oss/trident.c new file mode 100644 index 000000000000..47537f0a5b05 --- /dev/null +++ b/sound/oss/trident.c @@ -0,0 +1,4628 @@ +/* + * OSS driver for Linux 2.[46].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 + * Muli Ben-Yehuda <mulix@mulix.org> + * + * + * 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 + * v0.14.10j + * January 3 2004 Eugene Teo <eugeneteo@eugeneteo.net> + * minor cleanup to use pr_debug instead of TRDBG since it is already + * defined in linux/kernel.h. + * v0.14.10i + * December 29 2003 Muli Ben-Yehuda <mulix@mulix.org> + * major cleanup for 2.6, fix a few error patch buglets + * with returning without properly cleaning up first, + * get rid of lock_kernel(). + * v0.14.10h + * Sept 10 2002 Pascal Schmidt <der.eremit@email.de> + * added support for ALi 5451 joystick port + * v0.14.10g + * Sept 05 2002 Alan Cox <alan@redhat.com> + * adapt to new pci joystick attachment interface + * v0.14.10f + * July 24 2002 Muli Ben-Yehuda <mulix@actcom.co.il> + * patch from Eric Lemar (via Ian Soboroff): in suspend and resume, + * fix wrong cast from pci_dev* to struct trident_card*. + * v0.14.10e + * July 19 2002 Muli Ben-Yehuda <mulix@actcom.co.il> + * rewrite the DMA buffer allocation/deallcoation functions, to make it + * modular and fix a bug where we would call free_pages on memory + * obtained with pci_alloc_consistent. Also remove unnecessary #ifdef + * CONFIG_PROC_FS and various other cleanups. + * v0.14.10d + * July 19 2002 Muli Ben-Yehuda <mulix@actcom.co.il> + * made several printk(KERN_NOTICE...) into TRDBG(...), to avoid spamming + * my syslog with hundreds of messages. + * v0.14.10c + * July 16 2002 Muli Ben-Yehuda <mulix@actcom.co.il> + * Cleaned up Lei Hu's 0.4.10 driver to conform to Documentation/CodingStyle + * and the coding style used in the rest of the file. + * v0.14.10b + * June 23 2002 Muli Ben-Yehuda <mulix@actcom.co.il> + * add a missing unlock_set_fmt, remove a superflous lock/unlock pair + * with nothing in between. + * v0.14.10a + * June 21 2002 Muli Ben-Yehuda <mulix@actcom.co.il> + * use a debug macro instead of #ifdef CONFIG_DEBUG, trim to 80 columns + * per line, use 'do {} while (0)' in statement macros. + * v0.14.10 + * June 6 2002 Lei Hu <Lei_hu@ali.com.tw> + * rewrite the part to read/write registers of audio codec for Ali5451 + * v0.14.9e + * January 2 2002 Vojtech Pavlik <vojtech@ucw.cz> added gameport + * support to avoid resource conflict with pcigame.c + * v0.14.9d + * October 8 2001 Arnaldo Carvalho de Melo <acme@conectiva.com.br> + * use set_current_state, properly release resources on failure in + * trident_probe, get rid of check_region + * 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 doesn't 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/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 <linux/init.h> +#include <linux/poll.h> +#include <linux/spinlock.h> +#include <linux/smp_lock.h> +#include <linux/ac97_codec.h> +#include <linux/bitops.h> +#include <linux/proc_fs.h> +#include <linux/interrupt.h> +#include <linux/pm.h> +#include <linux/gameport.h> +#include <linux/kernel.h> +#include <asm/uaccess.h> +#include <asm/io.h> +#include <asm/dma.h> + +#if defined(CONFIG_ALPHA_NAUTILUS) || defined(CONFIG_ALPHA_GENERIC) +#include <asm/hwrpb.h> +#endif + +#include "trident.h" + +#define DRIVER_VERSION "0.14.10j-2.6" + +/* 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 ALI_DMA_MASK 0x7fffffff /* ALI Tridents have 31-bit DMA. Wow. */ + +#define NR_HW_CH 32 + +/* maximum number 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[] = { + {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 */ + /* put process on wait queue when no more space in buffer */ + wait_queue_head_t wait; + + /* 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; + + /* 5.1 channels */ + struct trident_state *other_states[4]; + int multi_channels_adjust_count; + unsigned chans_num; + unsigned long fmt_flag; + /* 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; + + /* Game port support */ + struct gameport *gameport; +}; + +enum dmabuf_mode { + DM_PLAYBACK = 0, + DM_RECORD +}; + +/* 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, pm_message_t 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 __user *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) do { \ + (dma_ptr) += (offset); \ + (buffer) += (offset); \ + (cnt) -= (offset); \ + (copy_count) += (offset); \ +} while (0) + +static inline int lock_set_fmt(struct trident_state* state) +{ + if (test_and_set_bit(0, &state->fmt_flag)) + return -EFAULT; + + return 0; +} + +static inline void unlock_set_fmt(struct trident_state* state) +{ + clear_bit(0, &state->fmt_flag); +} + +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 0; + } + + outl(global_control, TRID_REG(card, T4D_LFO_GC_CIR)); + + pr_debug("trident: Enable Loop Interrupts, globctl = 0x%08X\n", + inl(TRID_REG(card, T4D_LFO_GC_CIR))); + + return 1; +} + +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)); + + pr_debug("trident: Disabled Loop Interrupts, globctl = 0x%08X\n", + global_control); + + return 1; +} + +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)); + pr_debug("trident: enabled IRQ on channel %d, %s = 0x%08x(addr:%X)\n", + channel, addr == T4D_AINTEN_B ? "AINTEN_B" : "AINTEN_A", + reg, addr); +#endif /* DEBUG */ +} + +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)); + pr_debug("trident: disabled IRQ on channel %d, %s = 0x%08x(addr:%X)\n", + channel, addr == T4D_AINTEN_B ? "AINTEN_B" : "AINTEN_A", + reg, addr); +#endif /* DEBUG */ +} + +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 /* DEBUG */ + + outl(mask, TRID_REG(card, addr)); + +#ifdef DEBUG + reg = inl(TRID_REG(card, addr)); + pr_debug("trident: start voice on channel %d, %s = 0x%08x(addr:%X)\n", + channel, addr == T4D_START_B ? "START_B" : "START_A", + reg, addr); +#endif /* DEBUG */ +} + +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 /* DEBUG */ + + outl(mask, TRID_REG(card, addr)); + +#ifdef DEBUG + reg = inl(TRID_REG(card, addr)); + pr_debug("trident: stop voice on channel %d, %s = 0x%08x(addr:%X)\n", + channel, addr == T4D_STOP_B ? "STOP_B" : "STOP_A", + reg, addr); +#endif /* DEBUG */ +} + +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) + pr_debug("trident: channel %d has interrupt, %s = 0x%08x\n", + channel, reg == T4D_AINT_B ? "AINT_B" : "AINT_A", + reg); +#endif /* DEBUG */ + return (reg & mask) ? 1 : 0; +} + +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)); + pr_debug("trident: Ack channel %d interrupt, AINT_B = 0x%08x\n", + channel, reg); +#endif /* DEBUG */ +} + +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; + unsigned char b; + + if (channel < 31 || channel > 63) + return; + + if (card->pci_id == PCI_DEVICE_ID_TRIDENT_4DWAVE_DX || + card->pci_id == PCI_DEVICE_ID_TRIDENT_4DWAVE_NX) { + b = inb(TRID_REG(card, T4D_REC_CH)); + if ((b & ~0x80) == channel) + outb(0x0, TRID_REG(card, T4D_REC_CH)); + } + + 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 + */ + + spin_lock_irqsave(&card->lock, flags); + 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); + } + spin_unlock_irqrestore(&card->lock, 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 0; + + /* 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 1; +} + +/* 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 0; + } + + 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); + + pr_debug("trident: called trident_set_dac_rate : rate = %d\n", rate); + + 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); + + pr_debug("trident: called trident_set_adc_rate : rate = %d\n", rate); + + 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; + + pr_debug("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); + + 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; + + pr_debug("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); + + 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; + } + + pr_debug("trident: trident_get_dma_addr: chip reported channel: %d, " + "cso = 0x%04x\n", dmabuf->channel->num, cso); + + /* 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 + +/* alloc a DMA buffer of with a buffer of this order */ +static int +alloc_dmabuf(struct dmabuf *dmabuf, struct pci_dev *pci_dev, int order) +{ + void *rawbuf = NULL; + struct page *page, *pend; + + if (!(rawbuf = pci_alloc_consistent(pci_dev, PAGE_SIZE << order, + &dmabuf->dma_handle))) + return -ENOMEM; + + pr_debug("trident: allocated %ld (order = %d) bytes at %p\n", + PAGE_SIZE << order, order, rawbuf); + + dmabuf->ready = dmabuf->mapped = 0; + dmabuf->rawbuf = rawbuf; + dmabuf->buforder = order; + + /* now mark the pages as reserved; otherwise */ + /* remap_pfn_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++) + SetPageReserved(page); + + return 0; +} + +/* allocate the main DMA buffer, playback and recording buffer should be */ +/* allocated separately */ +static int +alloc_main_dmabuf(struct trident_state *state) +{ + struct dmabuf *dmabuf = &state->dmabuf; + int order; + int ret = -ENOMEM; + + /* alloc as big a chunk as we can, FIXME: is this necessary ?? */ + for (order = DMABUF_DEFAULTORDER; order >= DMABUF_MINORDER; order--) { + if (!(ret = alloc_dmabuf(dmabuf, state->card->pci_dev, order))) + return 0; + /* else try again */ + } + return ret; +} + +/* deallocate a DMA buffer */ +static void +dealloc_dmabuf(struct dmabuf *dmabuf, struct pci_dev *pci_dev) +{ + 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++) + ClearPageReserved(page); + pci_free_consistent(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, enum dmabuf_mode rec) +{ + struct dmabuf *dmabuf = &state->dmabuf; + unsigned bytepersec; + struct trident_state *s = state; + unsigned bufsize, dma_nums; + unsigned long flags; + int ret, i, order; + + if ((ret = lock_set_fmt(state)) < 0) + return ret; + + 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_main_dmabuf(state))) { + unlock_set_fmt(state); + return ret; + } + } else { + ret = -ENOMEM; + order = state->dmabuf.buforder - 1; + if (order >= DMABUF_MINORDER) { + ret = alloc_dmabuf(dmabuf, + state->card->pci_dev, + order); + } + if (ret) { + /* release the main DMA buffer */ + dealloc_dmabuf(&state->dmabuf, state->card->pci_dev); + /* release the auxiliary DMA buffers */ + for (i -= 2; i >= 0; i--) + dealloc_dmabuf(&state->other_states[i]->dmabuf, + state->card->pci_dev); + unlock_set_fmt(state); + return ret; + } + } + } + /* 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 == DM_RECORD) + trident_rec_setup(s); + else /* DM_PLAYBACK */ + trident_play_setup(s); + + spin_unlock_irqrestore(&s->card->lock, flags); + + /* set the ready flag for the dma buffer */ + dmabuf->ready = 1; + + pr_debug("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); + } + unlock_set_fmt(state); + return 0; +} + + +static inline int prog_dmabuf_record(struct trident_state* state) +{ + return prog_dmabuf(state, DM_RECORD); +} + +static inline int prog_dmabuf_playback(struct trident_state* state) +{ + return prog_dmabuf(state, DM_PLAYBACK); +} + +/* 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 */ + set_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); + set_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); + set_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; + unsigned int channel; + + /* Update the pointers for all channels we are running. */ + /* FIXME: should read interrupt status only once */ + for (i = 0; i < NR_HW_CH; i++) { + channel = 63 - i; + if (trident_check_channel_interrupt(card, channel)) { + trident_ack_channel_interrupt(card, channel); + if ((state = card->states[i]) != NULL) { + trident_update_ptr(state); + } else { + printk(KERN_WARNING "trident: spurious channel " + "irq %d.\n", channel); + trident_stop_voice(card, channel); + trident_disable_voice_irq(card, channel); + } + } + } +} + +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; + unsigned int channel; + + /* Update the pointers for all channels we are running. */ + /* FIXED: read interrupt status only once */ + irq_status = inl(TRID_REG(card, T4D_AINT_A)); + + pr_debug("cyber_address_interrupt: irq_status 0x%X\n", irq_status); + + for (i = 0; i < NR_HW_CH; i++) { + channel = 31 - i; + if (irq_status & (1 << channel)) { + /* clear bit by writing a 1, zeroes are ignored */ + outl((1 << channel), TRID_REG(card, T4D_AINT_A)); + + pr_debug("cyber_interrupt: channel %d\n", channel); + + if ((state = card->states[i]) != NULL) { + trident_update_ptr(state); + } else { + printk(KERN_WARNING "cyber5050: spurious " + "channel irq %d.\n", channel); + trident_stop_voice(card, channel); + trident_disable_voice_irq(card, channel); + } + } + } +} + +static irqreturn_t +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)); + + pr_debug("trident: trident_interrupt called, MISCINT = 0x%08x\n", + event); + + 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 IRQ_HANDLED; + } + + /* 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); + return IRQ_HANDLED; +} + +/* 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 __user *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; + + pr_debug("trident: trident_read called, count = %d\n", count); + + VALIDATE_STATE(state); + + if (dmabuf->mapped) + return -ENXIO; + if (!access_ok(VERIFY_WRITE, buffer, count)) + return -EFAULT; + + down(&state->sem); + if (!dmabuf->ready && (ret = prog_dmabuf_record(state))) + 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)) { + pr_debug(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); + + /* 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 __user *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; + int lret; /* for lock_set_fmt */ + + pr_debug("trident: trident_write called, count = %d\n", count); + + VALIDATE_STATE(state); + + /* + * Guard against an mmap or ioctl while writing + */ + + down(&state->sem); + + if (dmabuf->mapped) { + ret = -ENXIO; + goto out; + } + if (!dmabuf->ready && (ret = prog_dmabuf_playback(state))) + 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)) { + pr_debug(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); + + /* 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_nolock; + } + down(&state->sem); + if (dmabuf->mapped) { + if (!ret) + ret = -ENXIO; + goto out; + } + continue; + } + if ((lret = lock_set_fmt(state)) < 0) { + ret = lret; + goto out; + } + + 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); +out_nolock: + 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_playback(state)) { + up(&state->sem); + return 0; + } + poll_wait(file, &dmabuf->wait, wait); + } + if (file->f_mode & FMODE_READ) { + if (!dmabuf->ready && prog_dmabuf_record(state)) { + 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 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_playback(state)) != 0) + goto out; + } else if (vma->vm_flags & VM_READ) { + if ((ret = prog_dmabuf_record(state)) != 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_pfn_range(vma, vma->vm_start, + virt_to_phys(dmabuf->rawbuf) >> PAGE_SHIFT, + size, vma->vm_page_prot)) + goto out; + dmabuf->mapped = 1; + ret = 0; +out: + up(&state->sem); + 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; + void __user *argp = (void __user *)arg; + int __user *p = argp; + + VALIDATE_STATE(state); + + + mapped = ((file->f_mode & (FMODE_WRITE | FMODE_READ)) && dmabuf->mapped); + + pr_debug("trident: trident_ioctl, command = %2d, arg = 0x%08x\n", + _IOC_NR(cmd), arg ? *p : 0); + + switch (cmd) { + case OSS_GETVERSION: + ret = put_user(SOUND_VERSION, p); + break; + + case SNDCTL_DSP_RESET: + /* FIXME: spin_lock ? */ + if (file->f_mode & FMODE_WRITE) { + stop_dac(state); + synchronize_irq(card->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(card->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, p)) { + 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, p); + break; + + case SNDCTL_DSP_STEREO: /* set stereo or mono channel */ + if (get_user(val, p)) { + ret = -EFAULT; + break; + } + if ((ret = lock_set_fmt(state)) < 0) + return ret; + + 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_playback(state))) + ret = val; + else + ret = put_user(dmabuf->fragsize, p); + break; + } + if (file->f_mode & FMODE_READ) { + if ((val = prog_dmabuf_record(state))) + ret = val; + else + ret = put_user(dmabuf->fragsize, p); + break; + } + /* neither READ nor WRITE? is this even possible? */ + ret = -EINVAL; + 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, p); + break; + + case SNDCTL_DSP_SETFMT: /* Select sample format */ + if (get_user(val, p)) { + ret = -EFAULT; + break; + } + if ((ret = lock_set_fmt(state)) < 0) + return ret; + + 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, p); + break; + + case SNDCTL_DSP_CHANNELS: + if (get_user(val, p)) { + ret = -EFAULT; + break; + } + if (val != 0) { + if ((ret = lock_set_fmt(state)) < 0) + return ret; + + 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; + unlock_set_fmt(state); + 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, p); + 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, p)) { + 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, p)) { + 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_playback(state)) != 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(argp, &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_record(state)) != 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(argp, &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, p); + 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, p); + break; + + case SNDCTL_DSP_SETTRIGGER: + if (get_user(val, p)) { + ret = -EFAULT; + break; + } + if (file->f_mode & FMODE_READ) { + if (val & PCM_ENABLE_INPUT) { + if (!dmabuf->ready && + (ret = prog_dmabuf_record(state))) + 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_playback(state))) + 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_record(state)) + != 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(argp, &cinfo, sizeof (cinfo)) ? + -EFAULT : 0; + break; + + case SNDCTL_DSP_GETOPTR: + if (!(file->f_mode & FMODE_WRITE)) { + ret = -EINVAL; + break; + } + if (!dmabuf->ready && (val = prog_dmabuf_playback(state)) + != 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(argp, &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_playback(state)) != 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, p); + break; + + case SOUND_PCM_READ_RATE: + ret = put_user(dmabuf->rate, p); + break; + + case SOUND_PCM_READ_CHANNELS: + ret = put_user((dmabuf->fmt & TRIDENT_FMT_STEREO) ? 2 : 1, + p); + break; + + case SOUND_PCM_READ_BITS: + ret = put_user((dmabuf->fmt & TRIDENT_FMT_16BIT) ? AFMT_S16_LE : + AFMT_U8, p); + break; + + case SNDCTL_DSP_GETCHANNELMASK: + ret = put_user(DSP_BIND_FRONT | DSP_BIND_SURR | + DSP_BIND_CENTER_LFE, p); + break; + + case SNDCTL_DSP_BIND_CHANNEL: + if (state->card->pci_id != PCI_DEVICE_ID_SI_7018) { + ret = -EINVAL; + break; + } + + if (get_user(val, p)) { + 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, p); + 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 = iminor(inode); + struct trident_card *card = devs; + struct trident_state *state = NULL; + struct dmabuf *dmabuf = NULL; + + /* Added by Matt Wu 01-05-2001 */ + /* TODO: there's some redundacy here wrt the check below */ + /* for multi_use_count > 0. Should we return -EBUSY or find */ + /* a different card? for now, don't break current behaviour */ + /* -- mulix */ + 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] = kmalloc(sizeof(*state), GFP_KERNEL); + if (state == NULL) { + up(&card->open_sem); + return -ENOMEM; + } + memset(state, 0, sizeof(*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); + + pr_debug("trident: open virtual channel %d, hard channel %d\n", + state->virt, dmabuf->channel->num); + + return nonseekable_open(inode, file); +} + +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; + + VALIDATE_STATE(state); + + card = state->card; + dmabuf = &state->dmabuf; + + if (file->f_mode & FMODE_WRITE) { + trident_clear_tail(state); + drain_dac(state, file->f_flags & O_NONBLOCK); + } + + pr_debug("trident: closing virtual channel %d, hard channel %d\n", + state->virt, dmabuf->channel->num); + + /* stop DMA state machine and free DMA buffers/channels */ + down(&card->open_sem); + + if (file->f_mode & FMODE_WRITE) { + stop_dac(state); + dealloc_dmabuf(&state->dmabuf, state->card->pci_dev); + 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->dmabuf, state->card->pci_dev); + 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); + + 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)); +} + +/* rewrite ac97 read and write mixer register by hulei for ALI*/ +static int +acquirecodecaccess(struct trident_card *card) +{ + u16 wsemamask = 0x6000; /* bit 14..13 */ + u16 wsemabits; + u16 wcontrol; + int block = 0; + int ncount = 25; + while (1) { + wcontrol = inw(TRID_REG(card, ALI_AC97_WRITE)); + wsemabits = wcontrol & wsemamask; + + if (wsemabits == 0x4000) + return 1; /* 0x4000 is audio ,then success */ + if (ncount-- < 0) + break; + if (wsemabits == 0) { + unlock: + outl(((u32) (wcontrol & 0x1eff) | 0x00004000), + TRID_REG(card, ALI_AC97_WRITE)); + continue; + } + udelay(20); + } + if (!block) { + pr_debug("accesscodecsemaphore: try unlock\n"); + block = 1; + goto unlock; + } + return 0; +} + +static void +releasecodecaccess(struct trident_card *card) +{ + unsigned long wcontrol; + wcontrol = inl(TRID_REG(card, ALI_AC97_WRITE)); + outl((wcontrol & 0xffff1eff), TRID_REG(card, ALI_AC97_WRITE)); +} + +static int +waitforstimertick(struct trident_card *card) +{ + unsigned long chk1, chk2; + unsigned int wcount = 0xffff; + chk1 = inl(TRID_REG(card, ALI_STIMER)); + + while (1) { + chk2 = inl(TRID_REG(card, ALI_STIMER)); + if ((wcount > 0) && chk1 != chk2) + return 1; + if (wcount <= 0) + break; + udelay(50); + } + return 0; +} + +/* 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 ncount; + unsigned long aud_reg; + u32 data; + u16 wcontrol; + unsigned long flags; + + 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); + + if (!acquirecodecaccess(card)) + printk(KERN_ERR "access codec fail\n"); + + wcontrol = inw(TRID_REG(card, ALI_AC97_WRITE)); + wcontrol &= 0xfe00; + wcontrol |= (0x8000 | reg); + outw(wcontrol, TRID_REG(card, ALI_AC97_WRITE)); + + data = (mask | (reg & AC97_REG_ADDR)); + + if (!waitforstimertick(card)) { + printk(KERN_ERR "ali_ac97_read: BIT_CLOCK is dead\n"); + goto releasecodec; + } + + udelay(20); + + ncount = 10; + + while (1) { + if ((inw(TRID_REG(card, ALI_AC97_WRITE)) & ALI_AC97_BUSY_READ) + != 0) + break; + if (ncount <= 0) + break; + if (ncount-- == 1) { + pr_debug("ali_ac97_read :try clear busy flag\n"); + aud_reg = inl(TRID_REG(card, ALI_AC97_WRITE)); + outl((aud_reg & 0xffff7fff), + TRID_REG(card, ALI_AC97_WRITE)); + } + udelay(10); + } + + data = inl(TRID_REG(card, address)); + + spin_unlock_irqrestore(&card->lock, flags); + + return ((u16) (data >> 16)); + + releasecodec: + releasecodecaccess(card); + spin_unlock_irqrestore(&card->lock, flags); + printk(KERN_ERR "ali_ac97_read: AC97 CODEC read timed out.\n"); + return 0; +} + +/* Write AC97 codec registers for hulei*/ +static void +ali_ac97_set(struct trident_card *card, int secondary, u8 reg, u16 val) +{ + unsigned int address, mask; + unsigned int ncount; + u32 data; + u16 wcontrol; + unsigned long flags; + + 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); + if (!acquirecodecaccess(card)) + printk(KERN_ERR "ali_ac97_write: access codec fail\n"); + + wcontrol = inw(TRID_REG(card, ALI_AC97_WRITE)); + wcontrol &= 0xff00; + wcontrol |= (0x8100 | reg); /* bit 8=1: (ali1535 )reserved/ */ + /* ali1535+ write */ + outl((data | wcontrol), TRID_REG(card, ALI_AC97_WRITE)); + + if (!waitforstimertick(card)) { + printk(KERN_ERR "BIT_CLOCK is dead\n"); + goto releasecodec; + } + + ncount = 10; + while (1) { + wcontrol = inw(TRID_REG(card, ALI_AC97_WRITE)); + if (!(wcontrol & 0x8000)) + break; + if (ncount <= 0) + break; + if (ncount-- == 1) { + pr_debug("ali_ac97_set :try clear busy flag!!\n"); + outw(wcontrol & 0x7fff, + TRID_REG(card, ALI_AC97_WRITE)); + } + udelay(10); + } + + releasecodec: + releasecodecaccess(card); + spin_unlock_irqrestore(&card->lock, flags); + return; +} + +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); + + /* + * FIXME: need to stop this caching some registers + */ + 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; + pci_read_config_byte(pci_dev, 0x59, &temp); + 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; + + pci_read_config_byte(pci_dev, 0xB8, &temp); + 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; + pci_read_config_byte(pci_dev, 0x59, &temp); + 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; + pci_read_config_byte(pci_dev, (int) 0xB8, &temp); + 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); + /* + * On a board with a single codec you won't get the + * surround. On other boards configure it. + */ + if (card->ac97_codec[1] != NULL) { + 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; + unsigned long num; + + bank = &card->banks[BANK_A]; + + if (chan_nums != 6) + return 0; + + for (i = 0; (i < ALI_CHANNELS) && (state_count != 4); i++) { + if (card->states[i]) + continue; + + num = ali_multi_channels_5_1[state_count]; + if (!(bank->bitmap & (1 << num))) { + bank->bitmap |= 1 << num; + channel = &bank->channels[num]; + channel->num = num; + } else { + state_count--; + for (; state_count >= 0; state_count--) { + kfree(state->other_states[state_count]); + num = ali_multi_channels_5_1[state_count]; + ali_free_pcm_channel(card, num); + } + return -EBUSY; + } + s = card->states[i] = kmalloc(sizeof(*state), GFP_KERNEL); + if (!s) { + num = ali_multi_channels_5_1[state_count]; + ali_free_pcm_channel(card, num); + state_count--; + for (; state_count >= 0; state_count--) { + num = ali_multi_channels_5_1[state_count]; + ali_free_pcm_channel(card, num); + kfree(state->other_states[state_count]); + } + return -ENOMEM; + } + memset(s, 0, sizeof(*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]); + num = ali_multi_channels_5_1[state_count]; + ali_free_pcm_channel(card, num); + } + return -EBUSY; + } + return 0; +} + +static void +ali_save_regs(struct trident_card *card) +{ + unsigned long flags; + int i, j; + + spin_lock_irqsave(&card->lock, flags); + + 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)); + + spin_unlock_irqrestore(&card->lock, flags); +} + +static void +ali_restore_regs(struct trident_card *card) +{ + unsigned long flags; + int i, j; + + spin_lock_irqsave(&card->lock, flags); + + 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)); + + spin_unlock_irqrestore(&card->lock, flags); +} + +static int +trident_suspend(struct pci_dev *dev, pm_message_t unused) +{ + struct trident_card *card = pci_get_drvdata(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 = pci_get_drvdata(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 */ +#if 0 + printk(KERN_ERR "ali: no more channels available on Bank A.\n"); +#endif /* 0 */ + 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 */ +#if 0 + printk(KERN_ERR "ali: no recordable channels available on Bank A.\n"); +#endif /* 0 */ + 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; + } + + /* select spdif_out */ + ch_st_sel = inb(TRID_REG(card, ALI_SPDIF_CTRL)) & ALI_SPDIF_OUT_CH_STATUS; + + 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 __user *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 __user *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) { + int diff = state->chans_num - other_dma_nums; + loop = state->multi_channels_adjust_count - diff; + 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->dmabuf, card->pci_dev); + 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); + } +} + +static struct proc_dir_entry *res; + +static int +ali_write_proc(struct file *file, const char __user *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; +} + +/* OSS /dev/mixer file operation methods */ +static int +trident_open_mixdev(struct inode *inode, struct file *file) +{ + int i = 0; + int minor = iminor(inode); + 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 nonseekable_open(inode, file); +} + +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); + + /* TODO: recognize if we have a PM capable codec and only do this */ + /* if the codec is PM capable */ + wCount = 2000; + while (wCount--) { + wReg = ali_ac97_get(card, 0, AC97_POWER_CONTROL); + if ((wReg & 0x000f) == 0x000f) + return 0; + udelay(5000); + } + /* This is non fatal if you have a non PM capable codec.. */ + return 0; +} + +/* AC97 codec initialisation. */ +static int __devinit +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 = ac97_alloc_codec()) == NULL) + return -ENOMEM; + + /* 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; + + codec->dev_mixer = register_sound_mixer(&trident_mixer_fops, -1); + if (codec->dev_mixer < 0) { + printk(KERN_ERR "trident: couldn't register mixer!\n"); + ac97_release_codec(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++) { + u16 reg = ali_ac97_get(card, num_ac97, i * 2); + card->mixer_regs[i][num_ac97] = reg; + } + } + } + return num_ac97 + 1; +} + +/* Gameport functions for the cards ADC gameport */ + +static unsigned char +trident_game_read(struct gameport *gameport) +{ + struct trident_card *card = gameport->port_data; + return inb(TRID_REG(card, T4D_GAME_LEG)); +} + +static void +trident_game_trigger(struct gameport *gameport) +{ + struct trident_card *card = gameport->port_data; + outb(0xff, TRID_REG(card, T4D_GAME_LEG)); +} + +static int +trident_game_cooked_read(struct gameport *gameport, int *axes, int *buttons) +{ + struct trident_card *card = gameport->port_data; + int i; + + *buttons = (~inb(TRID_REG(card, T4D_GAME_LEG)) >> 4) & 0xf; + + for (i = 0; i < 4; i++) { + axes[i] = inw(TRID_REG(card, T4D_GAME_AXD) + i * sizeof (u16)); + if (axes[i] == 0xffff) + axes[i] = -1; + } + + return 0; +} + +static int +trident_game_open(struct gameport *gameport, int mode) +{ + struct trident_card *card = gameport->port_data; + + switch (mode) { + case GAMEPORT_MODE_COOKED: + outb(0x80, TRID_REG(card, T4D_GAME_CR)); + msleep(20); + return 0; + case GAMEPORT_MODE_RAW: + outb(0x00, TRID_REG(card, T4D_GAME_CR)); + return 0; + default: + return -1; + } + + return 0; +} + +static int __devinit +trident_register_gameport(struct trident_card *card) +{ + struct gameport *gp; + + card->gameport = gp = gameport_allocate_port(); + if (!gp) { + printk(KERN_ERR "trident: can not allocate memory for gameport\n"); + return -ENOMEM; + } + + gameport_set_name(gp, "Trident 4DWave"); + gameport_set_phys(gp, "pci%s/gameport0", pci_name(card->pci_dev)); + gp->read = trident_game_read; + gp->trigger = trident_game_trigger; + gp->cooked_read = trident_game_cooked_read; + gp->open = trident_game_open; + gp->fuzz = 64; + gp->port_data = card; + + gameport_register_port(gp); + + return 0; +} + +/* 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 __devinit +trident_probe(struct pci_dev *pci_dev, const struct pci_device_id *pci_id) +{ + unsigned long iobase; + struct trident_card *card; + u8 bits; + u8 revision; + int i = 0; + u16 temp; + struct pci_dev *pci_dev_m1533 = NULL; + int rc = -ENODEV; + u64 dma_mask; + + if (pci_enable_device(pci_dev)) + goto out; + + if (pci_dev->device == PCI_DEVICE_ID_ALI_5451) + dma_mask = ALI_DMA_MASK; + else + dma_mask = TRIDENT_DMA_MASK; + if (pci_set_dma_mask(pci_dev, dma_mask)) { + printk(KERN_ERR "trident: architecture does not support" + " %s PCI busmaster DMA\n", + pci_dev->device == PCI_DEVICE_ID_ALI_5451 ? + "32-bit" : "30-bit"); + goto out; + } + 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 (!request_region(iobase, 256, card_names[pci_id->driver_data])) { + printk(KERN_ERR "trident: can't allocate I/O space at " + "0x%4.4lx\n", iobase); + goto out; + } + + rc = -ENOMEM; + if ((card = kmalloc(sizeof(*card), GFP_KERNEL)) == NULL) { + printk(KERN_ERR "trident: out of memory\n"); + goto out_release_region; + } + memset(card, 0, sizeof (*card)); + + init_timer(&card->timer); + 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); + res = create_proc_entry("ALi5451", 0, NULL); + if (res) { + res->write_proc = ali_write_proc; + res->data = card; + } + } + + /* 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); + rc = -ENODEV; + if (pci_dev_m1533 == NULL) + goto out_proc_fs; + 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 irq */ + rc = -ENODEV; + 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); + goto out_proc_fs; + } + /* 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"); + goto out_free_irq; + } + 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) { + struct ac97_codec* codec = card->ac97_codec[i]; + unregister_sound_mixer(codec->dev_mixer); + ac97_release_codec(codec); + } + } + goto out_unregister_sound_dsp; + } + 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) || defined(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 | ALI_EAPD_POWER_DOWN); + } + } +#endif /* CONFIG_ALPHA_NAUTILUS || CONFIG_ALPHA_GENERIC */ + /* edited by HMSEO for GT sound */ + } + rc = 0; + pci_set_drvdata(pci_dev, card); + + /* Enable Address Engine Interrupts */ + trident_enable_loop_interrupts(card); + + /* Register gameport */ + trident_register_gameport(card); + +out: + return rc; + +out_unregister_sound_dsp: + unregister_sound_dsp(card->dev_audio); +out_free_irq: + free_irq(card->irq, card); +out_proc_fs: + if (res) { + remove_proc_entry("ALi5451", NULL); + res = NULL; + } + kfree(card); + devs = NULL; +out_release_region: + release_region(iobase, 256); + return rc; +} + +static void __devexit +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); + remove_proc_entry("ALi5451", NULL); + } + + /* Unregister gameport */ + if (card->gameport) + gameport_unregister_port(card->gameport); + + /* 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); + ac97_release_codec(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, Muli Ben-Yehuda"); +MODULE_DESCRIPTION("Trident 4DWave/SiS 7018/ALi 5451 and Tvia/IGST CyberPro5050 PCI " + "Audio Driver"); +MODULE_LICENSE("GPL"); + +#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 = __devexit_p(trident_remove), + .suspend = trident_suspend, + .resume = trident_resume +}; + +static int __init +trident_init_module(void) +{ + printk(KERN_INFO "Trident 4DWave/SiS 7018/ALi 5451,Tvia CyberPro " + "5050 PCI Audio, version " DRIVER_VERSION ", " __TIME__ " " + __DATE__ "\n"); + + return pci_register_driver(&trident_pci_driver); +} + +static void __exit +trident_cleanup_module(void) +{ + pci_unregister_driver(&trident_pci_driver); +} + +module_init(trident_init_module); +module_exit(trident_cleanup_module); |