diff options
Diffstat (limited to 'sound/oss/swarm_cs4297a.c')
| -rw-r--r-- | sound/oss/swarm_cs4297a.c | 2781 |
1 files changed, 0 insertions, 2781 deletions
diff --git a/sound/oss/swarm_cs4297a.c b/sound/oss/swarm_cs4297a.c deleted file mode 100644 index 97899352b15f..000000000000 --- a/sound/oss/swarm_cs4297a.c +++ /dev/null @@ -1,2781 +0,0 @@ -/******************************************************************************* -* -* "swarm_cs4297a.c" -- Cirrus Logic-Crystal CS4297a linux audio driver. -* -* Copyright (C) 2001 Broadcom Corporation. -* Copyright (C) 2000,2001 Cirrus Logic Corp. -* -- adapted from drivers by Thomas Sailer, -* -- but don't bug him; Problems should go to: -* -- tom woller (twoller@crystal.cirrus.com) or -* (audio@crystal.cirrus.com). -* -- adapted from cs4281 PCI driver for cs4297a on -* BCM1250 Synchronous Serial interface -* (Kip Walker, Broadcom Corp.) -* Copyright (C) 2004 Maciej W. Rozycki -* Copyright (C) 2005 Ralf Baechle (ralf@linux-mips.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. -* -* Module command line parameters: -* none -* -* Supported devices: -* /dev/dsp standard /dev/dsp device, (mostly) OSS compatible -* /dev/mixer standard /dev/mixer device, (mostly) OSS compatible -* /dev/midi simple MIDI UART interface, no ioctl -* -* Modification History -* 08/20/00 trw - silence and no stopping DAC until release -* 08/23/00 trw - added CS_DBG statements, fix interrupt hang issue on DAC stop. -* 09/18/00 trw - added 16bit only record with conversion -* 09/24/00 trw - added Enhanced Full duplex (separate simultaneous -* capture/playback rates) -* 10/03/00 trw - fixed mmap (fixed GRECORD and the XMMS mmap test plugin -* libOSSm.so) -* 10/11/00 trw - modified for 2.4.0-test9 kernel enhancements (NR_MAP removal) -* 11/03/00 trw - fixed interrupt loss/stutter, added debug. -* 11/10/00 bkz - added __devinit to cs4297a_hw_init() -* 11/10/00 trw - fixed SMP and capture spinlock hang. -* 12/04/00 trw - cleaned up CSDEBUG flags and added "defaultorder" moduleparm. -* 12/05/00 trw - fixed polling (myth2), and added underrun swptr fix. -* 12/08/00 trw - added PM support. -* 12/14/00 trw - added wrapper code, builds under 2.4.0, 2.2.17-20, 2.2.17-8 -* (RH/Dell base), 2.2.18, 2.2.12. cleaned up code mods by ident. -* 12/19/00 trw - added PM support for 2.2 base (apm_callback). other PM cleanup. -* 12/21/00 trw - added fractional "defaultorder" inputs. if >100 then use -* defaultorder-100 as power of 2 for the buffer size. example: -* 106 = 2^(106-100) = 2^6 = 64 bytes for the buffer size. -* -*******************************************************************************/ - -#include <linux/list.h> -#include <linux/module.h> -#include <linux/string.h> -#include <linux/ioport.h> -#include <linux/sched/signal.h> -#include <linux/delay.h> -#include <linux/sound.h> -#include <linux/slab.h> -#include <linux/soundcard.h> -#include <linux/pci.h> -#include <linux/bitops.h> -#include <linux/interrupt.h> -#include <linux/init.h> -#include <linux/poll.h> -#include <linux/mutex.h> -#include <linux/kernel.h> - -#include <asm/byteorder.h> -#include <asm/dma.h> -#include <asm/io.h> -#include <linux/uaccess.h> - -#include <asm/sibyte/sb1250_regs.h> -#include <asm/sibyte/sb1250_int.h> -#include <asm/sibyte/sb1250_dma.h> -#include <asm/sibyte/sb1250_scd.h> -#include <asm/sibyte/sb1250_syncser.h> -#include <asm/sibyte/sb1250_mac.h> -#include <asm/sibyte/sb1250.h> - -#include "sleep.h" - -struct cs4297a_state; - -static DEFINE_MUTEX(swarm_cs4297a_mutex); -static void stop_dac(struct cs4297a_state *s); -static void stop_adc(struct cs4297a_state *s); -static void start_dac(struct cs4297a_state *s); -static void start_adc(struct cs4297a_state *s); -#undef OSS_DOCUMENTED_MIXER_SEMANTICS - -// --------------------------------------------------------------------- - -#define CS4297a_MAGIC 0xf00beef1 - -// buffer order determines the size of the dma buffer for the driver. -// under Linux, a smaller buffer allows more responsiveness from many of the -// applications (e.g. games). A larger buffer allows some of the apps (esound) -// to not underrun the dma buffer as easily. As default, use 32k (order=3) -// rather than 64k as some of the games work more responsively. -// log base 2( buff sz = 32k). - -// -// Turn on/off debugging compilation by commenting out "#define CSDEBUG" -// -#define CSDEBUG 0 -#if CSDEBUG -#define CSDEBUG_INTERFACE 1 -#else -#undef CSDEBUG_INTERFACE -#endif -// -// cs_debugmask areas -// -#define CS_INIT 0x00000001 // initialization and probe functions -#define CS_ERROR 0x00000002 // tmp debugging bit placeholder -#define CS_INTERRUPT 0x00000004 // interrupt handler (separate from all other) -#define CS_FUNCTION 0x00000008 // enter/leave functions -#define CS_WAVE_WRITE 0x00000010 // write information for wave -#define CS_WAVE_READ 0x00000020 // read information for wave -#define CS_AC97 0x00000040 // AC97 register access -#define CS_DESCR 0x00000080 // descriptor management -#define CS_OPEN 0x00000400 // all open functions in the driver -#define CS_RELEASE 0x00000800 // all release functions in the driver -#define CS_PARMS 0x00001000 // functional and operational parameters -#define CS_IOCTL 0x00002000 // ioctl (non-mixer) -#define CS_TMP 0x10000000 // tmp debug mask bit - -// -// CSDEBUG is usual mode is set to 1, then use the -// cs_debuglevel and cs_debugmask to turn on or off debugging. -// Debug level of 1 has been defined to be kernel errors and info -// that should be printed on any released driver. -// -#if CSDEBUG -#define CS_DBGOUT(mask,level,x) if((cs_debuglevel >= (level)) && ((mask) & cs_debugmask) ) {x;} -#else -#define CS_DBGOUT(mask,level,x) -#endif - -#if CSDEBUG -static unsigned long cs_debuglevel = 4; // levels range from 1-9 -static unsigned long cs_debugmask = CS_INIT /*| CS_IOCTL*/; -module_param(cs_debuglevel, int, 0); -module_param(cs_debugmask, int, 0); -#endif -#define CS_TRUE 1 -#define CS_FALSE 0 - -#define CS_TYPE_ADC 0 -#define CS_TYPE_DAC 1 - -#define SER_BASE (A_SER_BASE_1 + KSEG1) -#define SS_CSR(t) (SER_BASE+t) -#define SS_TXTBL(t) (SER_BASE+R_SER_TX_TABLE_BASE+(t*8)) -#define SS_RXTBL(t) (SER_BASE+R_SER_RX_TABLE_BASE+(t*8)) - -#define FRAME_BYTES 32 -#define FRAME_SAMPLE_BYTES 4 - -/* Should this be variable? */ -#define SAMPLE_BUF_SIZE (16*1024) -#define SAMPLE_FRAME_COUNT (SAMPLE_BUF_SIZE / FRAME_SAMPLE_BYTES) -/* The driver can explode/shrink the frames to/from a smaller sample - buffer */ -#define DMA_BLOAT_FACTOR 1 -#define DMA_DESCR (SAMPLE_FRAME_COUNT / DMA_BLOAT_FACTOR) -#define DMA_BUF_SIZE (DMA_DESCR * FRAME_BYTES) - -/* Use the maxmium count (255 == 5.1 ms between interrupts) */ -#define DMA_INT_CNT ((1 << S_DMA_INT_PKTCNT) - 1) - -/* Figure this out: how many TX DMAs ahead to schedule a reg access */ -#define REG_LATENCY 150 - -#define FRAME_TX_US 20 - -#define SERDMA_NEXTBUF(d,f) (((d)->f+1) % (d)->ringsz) - -static const char invalid_magic[] = - KERN_CRIT "cs4297a: invalid magic value\n"; - -#define VALIDATE_STATE(s) \ -({ \ - if (!(s) || (s)->magic != CS4297a_MAGIC) { \ - printk(invalid_magic); \ - return -ENXIO; \ - } \ -}) - -/* AC97 registers */ -#define AC97_MASTER_VOL_STEREO 0x0002 /* Line Out */ -#define AC97_PCBEEP_VOL 0x000a /* none */ -#define AC97_PHONE_VOL 0x000c /* TAD Input (mono) */ -#define AC97_MIC_VOL 0x000e /* MIC Input (mono) */ -#define AC97_LINEIN_VOL 0x0010 /* Line Input (stereo) */ -#define AC97_CD_VOL 0x0012 /* CD Input (stereo) */ -#define AC97_AUX_VOL 0x0016 /* Aux Input (stereo) */ -#define AC97_PCMOUT_VOL 0x0018 /* Wave Output (stereo) */ -#define AC97_RECORD_SELECT 0x001a /* */ -#define AC97_RECORD_GAIN 0x001c -#define AC97_GENERAL_PURPOSE 0x0020 -#define AC97_3D_CONTROL 0x0022 -#define AC97_POWER_CONTROL 0x0026 -#define AC97_VENDOR_ID1 0x007c - -struct list_head cs4297a_devs = { &cs4297a_devs, &cs4297a_devs }; - -typedef struct serdma_descr_s { - u64 descr_a; - u64 descr_b; -} serdma_descr_t; - -typedef unsigned long paddr_t; - -typedef struct serdma_s { - unsigned ringsz; - serdma_descr_t *descrtab; - serdma_descr_t *descrtab_end; - paddr_t descrtab_phys; - - serdma_descr_t *descr_add; - serdma_descr_t *descr_rem; - - u64 *dma_buf; // buffer for DMA contents (frames) - paddr_t dma_buf_phys; - u16 *sample_buf; // tmp buffer for sample conversions - u16 *sb_swptr; - u16 *sb_hwptr; - u16 *sb_end; - - dma_addr_t dmaaddr; -// unsigned buforder; // Log base 2 of 'dma_buf' size in bytes.. - unsigned numfrag; // # of 'fragments' in the buffer. - unsigned fragshift; // Log base 2 of fragment size. - unsigned hwptr, swptr; - unsigned total_bytes; // # bytes process since open. - unsigned blocks; // last returned blocks value GETOPTR - unsigned wakeup; // interrupt occurred on block - int count; - unsigned underrun; // underrun flag - unsigned error; // over/underrun - wait_queue_head_t wait; - wait_queue_head_t reg_wait; - // redundant, but makes calculations easier - unsigned fragsize; // 2**fragshift.. - unsigned sbufsz; // 2**buforder. - unsigned fragsamples; - // OSS stuff - unsigned mapped:1; // Buffer mapped in cs4297a_mmap()? - unsigned ready:1; // prog_dmabuf_dac()/adc() successful? - unsigned endcleared:1; - unsigned type:1; // adc or dac buffer (CS_TYPE_XXX) - unsigned ossfragshift; - int ossmaxfrags; - unsigned subdivision; -} serdma_t; - -struct cs4297a_state { - // magic - unsigned int magic; - - struct list_head list; - - // soundcore stuff - int dev_audio; - int dev_mixer; - - // hardware resources - unsigned int irq; - - struct { - unsigned int rx_ovrrn; /* FIFO */ - unsigned int rx_overflow; /* staging buffer */ - unsigned int tx_underrun; - unsigned int rx_bad; - unsigned int rx_good; - } stats; - - // mixer registers - struct { - unsigned short vol[10]; - unsigned int recsrc; - unsigned int modcnt; - unsigned short micpreamp; - } mix; - - // wave stuff - struct properties { - unsigned fmt; - unsigned fmt_original; // original requested format - unsigned channels; - unsigned rate; - } prop_dac, prop_adc; - unsigned conversion:1; // conversion from 16 to 8 bit in progress - unsigned ena; - spinlock_t lock; - struct mutex open_mutex; - struct mutex open_sem_adc; - struct mutex open_sem_dac; - fmode_t open_mode; - wait_queue_head_t open_wait; - wait_queue_head_t open_wait_adc; - wait_queue_head_t open_wait_dac; - - dma_addr_t dmaaddr_sample_buf; - unsigned buforder_sample_buf; // Log base 2 of 'dma_buf' size in bytes.. - - serdma_t dma_dac, dma_adc; - - volatile u16 read_value; - volatile u16 read_reg; - volatile u64 reg_request; -}; - -#if 1 -#define prog_codec(a,b) -#define dealloc_dmabuf(a,b); -#endif - -static int prog_dmabuf_adc(struct cs4297a_state *s) -{ - s->dma_adc.ready = 1; - return 0; -} - - -static int prog_dmabuf_dac(struct cs4297a_state *s) -{ - s->dma_dac.ready = 1; - return 0; -} - -static void clear_advance(void *buf, unsigned bsize, unsigned bptr, - unsigned len, unsigned char c) -{ - if (bptr + len > bsize) { - unsigned x = bsize - bptr; - memset(((char *) buf) + bptr, c, x); - bptr = 0; - len -= x; - } - CS_DBGOUT(CS_WAVE_WRITE, 4, printk(KERN_INFO - "cs4297a: clear_advance(): memset %d at 0x%.8x for %d size \n", - (unsigned)c, (unsigned)((char *) buf) + bptr, len)); - memset(((char *) buf) + bptr, c, len); -} - -#if CSDEBUG - -// DEBUG ROUTINES - -#define SOUND_MIXER_CS_GETDBGLEVEL _SIOWR('M',120, int) -#define SOUND_MIXER_CS_SETDBGLEVEL _SIOWR('M',121, int) -#define SOUND_MIXER_CS_GETDBGMASK _SIOWR('M',122, int) -#define SOUND_MIXER_CS_SETDBGMASK _SIOWR('M',123, int) - -static void cs_printioctl(unsigned int x) -{ - unsigned int i; - unsigned char vidx; - // Index of mixtable1[] member is Device ID - // and must be <= SOUND_MIXER_NRDEVICES. - // Value of array member is index into s->mix.vol[] - static const unsigned char mixtable1[SOUND_MIXER_NRDEVICES] = { - [SOUND_MIXER_PCM] = 1, // voice - [SOUND_MIXER_LINE1] = 2, // AUX - [SOUND_MIXER_CD] = 3, // CD - [SOUND_MIXER_LINE] = 4, // Line - [SOUND_MIXER_SYNTH] = 5, // FM - [SOUND_MIXER_MIC] = 6, // Mic - [SOUND_MIXER_SPEAKER] = 7, // Speaker - [SOUND_MIXER_RECLEV] = 8, // Recording level - [SOUND_MIXER_VOLUME] = 9 // Master Volume - }; - - switch (x) { - case SOUND_MIXER_CS_GETDBGMASK: - CS_DBGOUT(CS_IOCTL, 4, - printk("SOUND_MIXER_CS_GETDBGMASK:\n")); - break; - case SOUND_MIXER_CS_GETDBGLEVEL: - CS_DBGOUT(CS_IOCTL, 4, - printk("SOUND_MIXER_CS_GETDBGLEVEL:\n")); - break; - case SOUND_MIXER_CS_SETDBGMASK: - CS_DBGOUT(CS_IOCTL, 4, - printk("SOUND_MIXER_CS_SETDBGMASK:\n")); - break; - case SOUND_MIXER_CS_SETDBGLEVEL: - CS_DBGOUT(CS_IOCTL, 4, - printk("SOUND_MIXER_CS_SETDBGLEVEL:\n")); - break; - case OSS_GETVERSION: - CS_DBGOUT(CS_IOCTL, 4, printk("OSS_GETVERSION:\n")); - break; - case SNDCTL_DSP_SYNC: - CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SYNC:\n")); - break; - case SNDCTL_DSP_SETDUPLEX: - CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SETDUPLEX:\n")); - break; - case SNDCTL_DSP_GETCAPS: - CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETCAPS:\n")); - break; - case SNDCTL_DSP_RESET: - CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_RESET:\n")); - break; - case SNDCTL_DSP_SPEED: - CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SPEED:\n")); - break; - case SNDCTL_DSP_STEREO: - CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_STEREO:\n")); - break; - case SNDCTL_DSP_CHANNELS: - CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_CHANNELS:\n")); - break; - case SNDCTL_DSP_GETFMTS: - CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETFMTS:\n")); - break; - case SNDCTL_DSP_SETFMT: - CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SETFMT:\n")); - break; - case SNDCTL_DSP_POST: - CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_POST:\n")); - break; - case SNDCTL_DSP_GETTRIGGER: - CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETTRIGGER:\n")); - break; - case SNDCTL_DSP_SETTRIGGER: - CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SETTRIGGER:\n")); - break; - case SNDCTL_DSP_GETOSPACE: - CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETOSPACE:\n")); - break; - case SNDCTL_DSP_GETISPACE: - CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETISPACE:\n")); - break; - case SNDCTL_DSP_NONBLOCK: - CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_NONBLOCK:\n")); - break; - case SNDCTL_DSP_GETODELAY: - CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETODELAY:\n")); - break; - case SNDCTL_DSP_GETIPTR: - CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETIPTR:\n")); - break; - case SNDCTL_DSP_GETOPTR: - CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETOPTR:\n")); - break; - case SNDCTL_DSP_GETBLKSIZE: - CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETBLKSIZE:\n")); - break; - case SNDCTL_DSP_SETFRAGMENT: - CS_DBGOUT(CS_IOCTL, 4, - printk("SNDCTL_DSP_SETFRAGMENT:\n")); - break; - case SNDCTL_DSP_SUBDIVIDE: - CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SUBDIVIDE:\n")); - break; - case SOUND_PCM_READ_RATE: - CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_PCM_READ_RATE:\n")); - break; - case SOUND_PCM_READ_CHANNELS: - CS_DBGOUT(CS_IOCTL, 4, - printk("SOUND_PCM_READ_CHANNELS:\n")); - break; - case SOUND_PCM_READ_BITS: - CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_PCM_READ_BITS:\n")); - break; - case SOUND_PCM_WRITE_FILTER: - CS_DBGOUT(CS_IOCTL, 4, - printk("SOUND_PCM_WRITE_FILTER:\n")); - break; - case SNDCTL_DSP_SETSYNCRO: - CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SETSYNCRO:\n")); - break; - case SOUND_PCM_READ_FILTER: - CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_PCM_READ_FILTER:\n")); - break; - case SOUND_MIXER_PRIVATE1: - CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_PRIVATE1:\n")); - break; - case SOUND_MIXER_PRIVATE2: - CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_PRIVATE2:\n")); - break; - case SOUND_MIXER_PRIVATE3: - CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_PRIVATE3:\n")); - break; - case SOUND_MIXER_PRIVATE4: - CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_PRIVATE4:\n")); - break; - case SOUND_MIXER_PRIVATE5: - CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_PRIVATE5:\n")); - break; - case SOUND_MIXER_INFO: - CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_INFO:\n")); - break; - case SOUND_OLD_MIXER_INFO: - CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_OLD_MIXER_INFO:\n")); - break; - - default: - switch (_IOC_NR(x)) { - case SOUND_MIXER_VOLUME: - CS_DBGOUT(CS_IOCTL, 4, - printk("SOUND_MIXER_VOLUME:\n")); - break; - case SOUND_MIXER_SPEAKER: - CS_DBGOUT(CS_IOCTL, 4, - printk("SOUND_MIXER_SPEAKER:\n")); - break; - case SOUND_MIXER_RECLEV: - CS_DBGOUT(CS_IOCTL, 4, - printk("SOUND_MIXER_RECLEV:\n")); - break; - case SOUND_MIXER_MIC: - CS_DBGOUT(CS_IOCTL, 4, - printk("SOUND_MIXER_MIC:\n")); - break; - case SOUND_MIXER_SYNTH: - CS_DBGOUT(CS_IOCTL, 4, - printk("SOUND_MIXER_SYNTH:\n")); - break; - case SOUND_MIXER_RECSRC: - CS_DBGOUT(CS_IOCTL, 4, - printk("SOUND_MIXER_RECSRC:\n")); - break; - case SOUND_MIXER_DEVMASK: - CS_DBGOUT(CS_IOCTL, 4, - printk("SOUND_MIXER_DEVMASK:\n")); - break; - case SOUND_MIXER_RECMASK: - CS_DBGOUT(CS_IOCTL, 4, - printk("SOUND_MIXER_RECMASK:\n")); - break; - case SOUND_MIXER_STEREODEVS: - CS_DBGOUT(CS_IOCTL, 4, - printk("SOUND_MIXER_STEREODEVS:\n")); - break; - case SOUND_MIXER_CAPS: - CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_CAPS:\n")); - break; - default: - i = _IOC_NR(x); - if (i >= SOUND_MIXER_NRDEVICES - || !(vidx = mixtable1[i])) { - CS_DBGOUT(CS_IOCTL, 4, printk - ("UNKNOWN IOCTL: 0x%.8x NR=%d\n", - x, i)); - } else { - CS_DBGOUT(CS_IOCTL, 4, printk - ("SOUND_MIXER_IOCTL AC9x: 0x%.8x NR=%d\n", - x, i)); - } - break; - } - } -} -#endif - - -static int ser_init(struct cs4297a_state *s) -{ - int i; - - CS_DBGOUT(CS_INIT, 2, - printk(KERN_INFO "cs4297a: Setting up serial parameters\n")); - - __raw_writeq(M_SYNCSER_CMD_RX_RESET | M_SYNCSER_CMD_TX_RESET, SS_CSR(R_SER_CMD)); - - __raw_writeq(M_SYNCSER_MSB_FIRST, SS_CSR(R_SER_MODE)); - __raw_writeq(32, SS_CSR(R_SER_MINFRM_SZ)); - __raw_writeq(32, SS_CSR(R_SER_MAXFRM_SZ)); - - __raw_writeq(1, SS_CSR(R_SER_TX_RD_THRSH)); - __raw_writeq(4, SS_CSR(R_SER_TX_WR_THRSH)); - __raw_writeq(8, SS_CSR(R_SER_RX_RD_THRSH)); - - /* This looks good from experimentation */ - __raw_writeq((M_SYNCSER_TXSYNC_INT | V_SYNCSER_TXSYNC_DLY(0) | M_SYNCSER_TXCLK_EXT | - M_SYNCSER_RXSYNC_INT | V_SYNCSER_RXSYNC_DLY(1) | M_SYNCSER_RXCLK_EXT | M_SYNCSER_RXSYNC_EDGE), - SS_CSR(R_SER_LINE_MODE)); - - /* This looks good from experimentation */ - __raw_writeq(V_SYNCSER_SEQ_COUNT(14) | M_SYNCSER_SEQ_ENABLE | M_SYNCSER_SEQ_STROBE, - SS_TXTBL(0)); - __raw_writeq(V_SYNCSER_SEQ_COUNT(15) | M_SYNCSER_SEQ_ENABLE | M_SYNCSER_SEQ_BYTE, - SS_TXTBL(1)); - __raw_writeq(V_SYNCSER_SEQ_COUNT(13) | M_SYNCSER_SEQ_ENABLE | M_SYNCSER_SEQ_BYTE, - SS_TXTBL(2)); - __raw_writeq(V_SYNCSER_SEQ_COUNT( 0) | M_SYNCSER_SEQ_ENABLE | - M_SYNCSER_SEQ_STROBE | M_SYNCSER_SEQ_LAST, SS_TXTBL(3)); - - __raw_writeq(V_SYNCSER_SEQ_COUNT(14) | M_SYNCSER_SEQ_ENABLE | M_SYNCSER_SEQ_STROBE, - SS_RXTBL(0)); - __raw_writeq(V_SYNCSER_SEQ_COUNT(15) | M_SYNCSER_SEQ_ENABLE | M_SYNCSER_SEQ_BYTE, - SS_RXTBL(1)); - __raw_writeq(V_SYNCSER_SEQ_COUNT(13) | M_SYNCSER_SEQ_ENABLE | M_SYNCSER_SEQ_BYTE, - SS_RXTBL(2)); - __raw_writeq(V_SYNCSER_SEQ_COUNT( 0) | M_SYNCSER_SEQ_ENABLE | M_SYNCSER_SEQ_STROBE | - M_SYNCSER_SEQ_LAST, SS_RXTBL(3)); - - for (i=4; i<16; i++) { - /* Just in case... */ - __raw_writeq(M_SYNCSER_SEQ_LAST, SS_TXTBL(i)); - __raw_writeq(M_SYNCSER_SEQ_LAST, SS_RXTBL(i)); - } - - return 0; -} - -static int init_serdma(serdma_t *dma) -{ - CS_DBGOUT(CS_INIT, 2, - printk(KERN_ERR "cs4297a: desc - %d sbufsize - %d dbufsize - %d\n", - DMA_DESCR, SAMPLE_BUF_SIZE, DMA_BUF_SIZE)); - - /* Descriptors */ - dma->ringsz = DMA_DESCR; - dma->descrtab = kzalloc(dma->ringsz * sizeof(serdma_descr_t), GFP_KERNEL); - if (!dma->descrtab) { - printk(KERN_ERR "cs4297a: kzalloc descrtab failed\n"); - return -1; - } - dma->descrtab_end = dma->descrtab + dma->ringsz; - /* XXX bloddy mess, use proper DMA API here ... */ - dma->descrtab_phys = CPHYSADDR((long)dma->descrtab); - dma->descr_add = dma->descr_rem = dma->descrtab; - - /* Frame buffer area */ - dma->dma_buf = kzalloc(DMA_BUF_SIZE, GFP_KERNEL); - if (!dma->dma_buf) { - printk(KERN_ERR "cs4297a: kzalloc dma_buf failed\n"); - kfree(dma->descrtab); - return -1; - } - dma->dma_buf_phys = CPHYSADDR((long)dma->dma_buf); - - /* Samples buffer area */ - dma->sbufsz = SAMPLE_BUF_SIZE; - dma->sample_buf = kmalloc(dma->sbufsz, GFP_KERNEL); - if (!dma->sample_buf) { - printk(KERN_ERR "cs4297a: kmalloc sample_buf failed\n"); - kfree(dma->descrtab); - kfree(dma->dma_buf); - return -1; - } - dma->sb_swptr = dma->sb_hwptr = dma->sample_buf; - dma->sb_end = (u16 *)((void *)dma->sample_buf + dma->sbufsz); - dma->fragsize = dma->sbufsz >> 1; - - CS_DBGOUT(CS_INIT, 4, - printk(KERN_ERR "cs4297a: descrtab - %08x dma_buf - %x sample_buf - %x\n", - (int)dma->descrtab, (int)dma->dma_buf, - (int)dma->sample_buf)); - - return 0; -} - -static int dma_init(struct cs4297a_state *s) -{ - int i; - - CS_DBGOUT(CS_INIT, 2, - printk(KERN_INFO "cs4297a: Setting up DMA\n")); - - if (init_serdma(&s->dma_adc) || - init_serdma(&s->dma_dac)) - return -1; - - if (__raw_readq(SS_CSR(R_SER_DMA_DSCR_COUNT_RX))|| - __raw_readq(SS_CSR(R_SER_DMA_DSCR_COUNT_TX))) { - panic("DMA state corrupted?!"); - } - - /* Initialize now - the descr/buffer pairings will never - change... */ - for (i=0; i<DMA_DESCR; i++) { - s->dma_dac.descrtab[i].descr_a = M_DMA_SERRX_SOP | V_DMA_DSCRA_A_SIZE(1) | - (s->dma_dac.dma_buf_phys + i*FRAME_BYTES); - s->dma_dac.descrtab[i].descr_b = V_DMA_DSCRB_PKT_SIZE(FRAME_BYTES); - s->dma_adc.descrtab[i].descr_a = V_DMA_DSCRA_A_SIZE(1) | - (s->dma_adc.dma_buf_phys + i*FRAME_BYTES); - s->dma_adc.descrtab[i].descr_b = 0; - } - - __raw_writeq((M_DMA_EOP_INT_EN | V_DMA_INT_PKTCNT(DMA_INT_CNT) | - V_DMA_RINGSZ(DMA_DESCR) | M_DMA_TDX_EN), - SS_CSR(R_SER_DMA_CONFIG0_RX)); - __raw_writeq(M_DMA_L2CA, SS_CSR(R_SER_DMA_CONFIG1_RX)); - __raw_writeq(s->dma_adc.descrtab_phys, SS_CSR(R_SER_DMA_DSCR_BASE_RX)); - - __raw_writeq(V_DMA_RINGSZ(DMA_DESCR), SS_CSR(R_SER_DMA_CONFIG0_TX)); - __raw_writeq(M_DMA_L2CA | M_DMA_NO_DSCR_UPDT, SS_CSR(R_SER_DMA_CONFIG1_TX)); - __raw_writeq(s->dma_dac.descrtab_phys, SS_CSR(R_SER_DMA_DSCR_BASE_TX)); - - /* Prep the receive DMA descriptor ring */ - __raw_writeq(DMA_DESCR, SS_CSR(R_SER_DMA_DSCR_COUNT_RX)); - - __raw_writeq(M_SYNCSER_DMA_RX_EN | M_SYNCSER_DMA_TX_EN, SS_CSR(R_SER_DMA_ENABLE)); - - __raw_writeq((M_SYNCSER_RX_SYNC_ERR | M_SYNCSER_RX_OVERRUN | M_SYNCSER_RX_EOP_COUNT), - SS_CSR(R_SER_INT_MASK)); - - /* Enable the rx/tx; let the codec warm up to the sync and - start sending good frames before the receive FIFO is - enabled */ - __raw_writeq(M_SYNCSER_CMD_TX_EN, SS_CSR(R_SER_CMD)); - udelay(1000); - __raw_writeq(M_SYNCSER_CMD_RX_EN | M_SYNCSER_CMD_TX_EN, SS_CSR(R_SER_CMD)); - - /* XXXKW is this magic? (the "1" part) */ - while ((__raw_readq(SS_CSR(R_SER_STATUS)) & 0xf1) != 1) - ; - - CS_DBGOUT(CS_INIT, 4, - printk(KERN_INFO "cs4297a: status: %08x\n", - (unsigned int)(__raw_readq(SS_CSR(R_SER_STATUS)) & 0xffffffff))); - - return 0; -} - -static int serdma_reg_access(struct cs4297a_state *s, u64 data) -{ - serdma_t *d = &s->dma_dac; - u64 *data_p; - unsigned swptr; - unsigned long flags; - serdma_descr_t *descr; - - if (s->reg_request) { - printk(KERN_ERR "cs4297a: attempt to issue multiple reg_access\n"); - return -1; - } - - if (s->ena & FMODE_WRITE) { - /* Since a writer has the DSP open, we have to mux the - request in */ - s->reg_request = data; - oss_broken_sleep_on(&s->dma_dac.reg_wait, MAX_SCHEDULE_TIMEOUT); - /* XXXKW how can I deal with the starvation case where - the opener isn't writing? */ - } else { - /* Be safe when changing ring pointers */ - spin_lock_irqsave(&s->lock, flags); - if (d->hwptr != d->swptr) { - printk(KERN_ERR "cs4297a: reg access found bookkeeping error (hw/sw = %d/%d\n", - d->hwptr, d->swptr); - spin_unlock_irqrestore(&s->lock, flags); - return -1; - } - swptr = d->swptr; - d->hwptr = d->swptr = (d->swptr + 1) % d->ringsz; - spin_unlock_irqrestore(&s->lock, flags); - - descr = &d->descrtab[swptr]; - data_p = &d->dma_buf[swptr * 4]; - *data_p = cpu_to_be64(data); - __raw_writeq(1, SS_CSR(R_SER_DMA_DSCR_COUNT_TX)); - CS_DBGOUT(CS_DESCR, 4, - printk(KERN_INFO "cs4297a: add_tx %p (%x -> %x)\n", - data_p, swptr, d->hwptr)); - } - - CS_DBGOUT(CS_FUNCTION, 6, - printk(KERN_INFO "cs4297a: serdma_reg_access()-\n")); - - return 0; -} - -//**************************************************************************** -// "cs4297a_read_ac97" -- Reads an AC97 register -//**************************************************************************** -static int cs4297a_read_ac97(struct cs4297a_state *s, u32 offset, - u32 * value) -{ - CS_DBGOUT(CS_AC97, 1, - printk(KERN_INFO "cs4297a: read reg %2x\n", offset)); - if (serdma_reg_access(s, (0xCLL << 60) | (1LL << 47) | ((u64)(offset & 0x7F) << 40))) - return -1; - - oss_broken_sleep_on(&s->dma_adc.reg_wait, MAX_SCHEDULE_TIMEOUT); - *value = s->read_value; - CS_DBGOUT(CS_AC97, 2, - printk(KERN_INFO "cs4297a: rdr reg %x -> %x\n", s->read_reg, s->read_value)); - - return 0; -} - - -//**************************************************************************** -// "cs4297a_write_ac97()"-- writes an AC97 register -//**************************************************************************** -static int cs4297a_write_ac97(struct cs4297a_state *s, u32 offset, - u32 value) -{ - CS_DBGOUT(CS_AC97, 1, - printk(KERN_INFO "cs4297a: write reg %2x -> %04x\n", offset, value)); - return (serdma_reg_access(s, (0xELL << 60) | ((u64)(offset & 0x7F) << 40) | ((value & 0xffff) << 12))); -} - -static void stop_dac(struct cs4297a_state *s) -{ - unsigned long flags; - - CS_DBGOUT(CS_WAVE_WRITE, 3, printk(KERN_INFO "cs4297a: stop_dac():\n")); - spin_lock_irqsave(&s->lock, flags); - s->ena &= ~FMODE_WRITE; -#if 0 - /* XXXKW what do I really want here? My theory for now is - that I just flip the "ena" bit, and the interrupt handler - will stop processing the xmit channel */ - __raw_writeq((s->ena & FMODE_READ) ? M_SYNCSER_DMA_RX_EN : 0, - SS_CSR(R_SER_DMA_ENABLE)); -#endif - - spin_unlock_irqrestore(&s->lock, flags); -} - - -static void start_dac(struct cs4297a_state *s) -{ - unsigned long flags; - - CS_DBGOUT(CS_FUNCTION, 3, printk(KERN_INFO "cs4297a: start_dac()+\n")); - spin_lock_irqsave(&s->lock, flags); - if (!(s->ena & FMODE_WRITE) && (s->dma_dac.mapped || - (s->dma_dac.count > 0 - && s->dma_dac.ready))) { - s->ena |= FMODE_WRITE; - /* XXXKW what do I really want here? My theory for - now is that I just flip the "ena" bit, and the - interrupt handler will start processing the xmit - channel */ - - CS_DBGOUT(CS_WAVE_WRITE | CS_PARMS, 8, printk(KERN_INFO - "cs4297a: start_dac(): start dma\n")); - - } - spin_unlock_irqrestore(&s->lock, flags); - CS_DBGOUT(CS_FUNCTION, 3, - printk(KERN_INFO "cs4297a: start_dac()-\n")); -} - - -static void stop_adc(struct cs4297a_state *s) -{ - unsigned long flags; - - CS_DBGOUT(CS_FUNCTION, 3, - printk(KERN_INFO "cs4297a: stop_adc()+\n")); - - spin_lock_irqsave(&s->lock, flags); - s->ena &= ~FMODE_READ; - - if (s->conversion == 1) { - s->conversion = 0; - s->prop_adc.fmt = s->prop_adc.fmt_original; - } - /* Nothing to do really, I need to keep the DMA going - XXXKW when do I get here, and is there more I should do? */ - spin_unlock_irqrestore(&s->lock, flags); - CS_DBGOUT(CS_FUNCTION, 3, - printk(KERN_INFO "cs4297a: stop_adc()-\n")); -} - - -static void start_adc(struct cs4297a_state *s) -{ - unsigned long flags; - - CS_DBGOUT(CS_FUNCTION, 2, - printk(KERN_INFO "cs4297a: start_adc()+\n")); - - if (!(s->ena & FMODE_READ) && - (s->dma_adc.mapped || s->dma_adc.count <= - (signed) (s->dma_adc.sbufsz - 2 * s->dma_adc.fragsize)) - && s->dma_adc.ready) { - if (s->prop_adc.fmt & AFMT_S8 || s->prop_adc.fmt & AFMT_U8) { - // - // now only use 16 bit capture, due to truncation issue - // in the chip, noticeable distortion occurs. - // allocate buffer and then convert from 16 bit to - // 8 bit for the user buffer. - // - s->prop_adc.fmt_original = s->prop_adc.fmt; - if (s->prop_adc.fmt & AFMT_S8) { - s->prop_adc.fmt &= ~AFMT_S8; - s->prop_adc.fmt |= AFMT_S16_LE; - } - if (s->prop_adc.fmt & AFMT_U8) { - s->prop_adc.fmt &= ~AFMT_U8; - s->prop_adc.fmt |= AFMT_U16_LE; - } - // - // prog_dmabuf_adc performs a stop_adc() but that is - // ok since we really haven't started the DMA yet. - // - prog_codec(s, CS_TYPE_ADC); - - prog_dmabuf_adc(s); - s->conversion = 1; - } - spin_lock_irqsave(&s->lock, flags); - s->ena |= FMODE_READ; - /* Nothing to do really, I am probably already - DMAing... XXXKW when do I get here, and is there - more I should do? */ - spin_unlock_irqrestore(&s->lock, flags); - - CS_DBGOUT(CS_PARMS, 6, printk(KERN_INFO - "cs4297a: start_adc(): start adc\n")); - } - CS_DBGOUT(CS_FUNCTION, 2, - printk(KERN_INFO "cs4297a: start_adc()-\n")); - -} - - -// call with spinlock held! -static void cs4297a_update_ptr(struct cs4297a_state *s, int intflag) -{ - int good_diff, diff, diff2; - u64 *data_p, data; - u32 *s_ptr; - unsigned hwptr; - u32 status; - serdma_t *d; - serdma_descr_t *descr; - - // update ADC pointer - status = intflag ? __raw_readq(SS_CSR(R_SER_STATUS)) : 0; - - if ((s->ena & FMODE_READ) || (status & (M_SYNCSER_RX_EOP_COUNT))) { - d = &s->dma_adc; - hwptr = (unsigned) (((__raw_readq(SS_CSR(R_SER_DMA_CUR_DSCR_ADDR_RX)) & M_DMA_CURDSCR_ADDR) - - d->descrtab_phys) / sizeof(serdma_descr_t)); - - if (s->ena & FMODE_READ) { - CS_DBGOUT(CS_FUNCTION, 2, - printk(KERN_INFO "cs4297a: upd_rcv sw->hw->hw %x/%x/%x (int-%d)n", - d->swptr, d->hwptr, hwptr, intflag)); - /* Number of DMA buffers available for software: */ - diff2 = diff = (d->ringsz + hwptr - d->hwptr) % d->ringsz; - d->hwptr = hwptr; - good_diff = 0; - s_ptr = (u32 *)&(d->dma_buf[d->swptr*4]); - descr = &d->descrtab[d->swptr]; - while (diff2--) { - u64 data = be64_to_cpu(*(u64 *)s_ptr); - u64 descr_a; - u16 left, right; - descr_a = descr->descr_a; - descr->descr_a &= ~M_DMA_SERRX_SOP; - if ((descr_a & M_DMA_DSCRA_A_ADDR) != CPHYSADDR((long)s_ptr)) { - printk(KERN_ERR "cs4297a: RX Bad address (read)\n"); - } - if (((data & 0x9800000000000000) != 0x9800000000000000) || - (!(descr_a & M_DMA_SERRX_SOP)) || - (G_DMA_DSCRB_PKT_SIZE(descr->descr_b) != FRAME_BYTES)) { - s->stats.rx_bad++; - printk(KERN_DEBUG "cs4297a: RX Bad attributes (read)\n"); - continue; - } - s->stats.rx_good++; - if ((data >> 61) == 7) { - s->read_value = (data >> 12) & 0xffff; - s->read_reg = (data >> 40) & 0x7f; - wake_up(&d->reg_wait); - } - if (d->count && (d->sb_hwptr == d->sb_swptr)) { - s->stats.rx_overflow++; - printk(KERN_DEBUG "cs4297a: RX overflow\n"); - continue; - } - good_diff++; - left = ((be32_to_cpu(s_ptr[1]) & 0xff) << 8) | - ((be32_to_cpu(s_ptr[2]) >> 24) & 0xff); - right = (be32_to_cpu(s_ptr[2]) >> 4) & 0xffff; - *d->sb_hwptr++ = cpu_to_be16(left); - *d->sb_hwptr++ = cpu_to_be16(right); - if (d->sb_hwptr == d->sb_end) - d->sb_hwptr = d->sample_buf; - descr++; - if (descr == d->descrtab_end) { - descr = d->descrtab; - s_ptr = (u32 *)s->dma_adc.dma_buf; - } else { - s_ptr += 8; - } - } - d->total_bytes += good_diff * FRAME_SAMPLE_BYTES; - d->count += good_diff * FRAME_SAMPLE_BYTES; - if (d->count > d->sbufsz) { - printk(KERN_ERR "cs4297a: bogus receive overflow!!\n"); - } - d->swptr = (d->swptr + diff) % d->ringsz; - __raw_writeq(diff, SS_CSR(R_SER_DMA_DSCR_COUNT_RX)); - if (d->mapped) { - if (d->count >= (signed) d->fragsize) - wake_up(&d->wait); - } else { - if (d->count > 0) { - CS_DBGOUT(CS_WAVE_READ, 4, - printk(KERN_INFO - "cs4297a: update count -> %d\n", d->count)); - wake_up(&d->wait); - } - } - } else { - /* Receive is going even if no one is - listening (for register accesses and to - avoid FIFO overrun) */ - diff2 = diff = (hwptr + d->ringsz - d->hwptr) % d->ringsz; - if (!diff) { - printk(KERN_ERR "cs4297a: RX full or empty?\n"); - } - - descr = &d->descrtab[d->swptr]; - data_p = &d->dma_buf[d->swptr*4]; - - /* Force this to happen at least once; I got - here because of an interrupt, so there must - be a buffer to process. */ - do { - data = be64_to_cpu(*data_p); - if ((descr->descr_a & M_DMA_DSCRA_A_ADDR) != CPHYSADDR((long)data_p)) { - printk(KERN_ERR "cs4297a: RX Bad address %d (%llx %lx)\n", d->swptr, - (long long)(descr->descr_a & M_DMA_DSCRA_A_ADDR), - (long)CPHYSADDR((long)data_p)); - } - if (!(data & (1LL << 63)) || - !(descr->descr_a & M_DMA_SERRX_SOP) || - (G_DMA_DSCRB_PKT_SIZE(descr->descr_b) != FRAME_BYTES)) { - s->stats.rx_bad++; - printk(KERN_DEBUG "cs4297a: RX Bad attributes\n"); - } else { - s->stats.rx_good++; - if ((data >> 61) == 7) { - s->read_value = (data >> 12) & 0xffff; - s->read_reg = (data >> 40) & 0x7f; - wake_up(&d->reg_wait); - } - } - descr->descr_a &= ~M_DMA_SERRX_SOP; - descr++; - d->swptr++; - data_p += 4; - if (descr == d->descrtab_end) { - descr = d->descrtab; - d->swptr = 0; - data_p = d->dma_buf; - } - __raw_writeq(1, SS_CSR(R_SER_DMA_DSCR_COUNT_RX)); - } while (--diff); - d->hwptr = hwptr; - - CS_DBGOUT(CS_DESCR, 6, - printk(KERN_INFO "cs4297a: hw/sw %x/%x\n", d->hwptr, d->swptr)); - } - - CS_DBGOUT(CS_PARMS, 8, printk(KERN_INFO - "cs4297a: cs4297a_update_ptr(): s=0x%.8x hwptr=%d total_bytes=%d count=%d \n", - (unsigned)s, d->hwptr, - d->total_bytes, d->count)); - } - - /* XXXKW worry about s->reg_request -- there is a starvation - case if s->ena has FMODE_WRITE on, but the client isn't - doing writes */ - - // update DAC pointer - // - // check for end of buffer, means that we are going to wait for another interrupt - // to allow silence to fill the fifos on the part, to keep pops down to a minimum. - // - if (s->ena & FMODE_WRITE) { - serdma_t *d = &s->dma_dac; - hwptr = (unsigned) (((__raw_readq(SS_CSR(R_SER_DMA_CUR_DSCR_ADDR_TX)) & M_DMA_CURDSCR_ADDR) - - d->descrtab_phys) / sizeof(serdma_descr_t)); - diff = (d->ringsz + hwptr - d->hwptr) % d->ringsz; - CS_DBGOUT(CS_WAVE_WRITE, 4, printk(KERN_INFO - "cs4297a: cs4297a_update_ptr(): hw/hw/sw %x/%x/%x diff %d count %d\n", - d->hwptr, hwptr, d->swptr, diff, d->count)); - d->hwptr = hwptr; - /* XXXKW stereo? conversion? Just assume 2 16-bit samples for now */ - d->total_bytes += diff * FRAME_SAMPLE_BYTES; - if (d->mapped) { - d->count += diff * FRAME_SAMPLE_BYTES; - if (d->count >= d->fragsize) { - d->wakeup = 1; - wake_up(&d->wait); - if (d->count > d->sbufsz) - d->count &= d->sbufsz - 1; - } - } else { - d->count -= diff * FRAME_SAMPLE_BYTES; - if (d->count <= 0) { - // - // fill with silence, and do not shut down the DAC. - // Continue to play silence until the _release. - // - CS_DBGOUT(CS_WAVE_WRITE, 6, printk(KERN_INFO - "cs4297a: cs4297a_update_ptr(): memset %d at 0x%.8x for %d size \n", - (unsigned)(s->prop_dac.fmt & - (AFMT_U8 | AFMT_U16_LE)) ? 0x80 : 0, - (unsigned)d->dma_buf, - d->ringsz)); - memset(d->dma_buf, 0, d->ringsz * FRAME_BYTES); - if (d->count < 0) { - d->underrun = 1; - s->stats.tx_underrun++; - d->count = 0; - CS_DBGOUT(CS_ERROR, 9, printk(KERN_INFO - "cs4297a: cs4297a_update_ptr(): underrun\n")); - } - } else if (d->count <= - (signed) d->fragsize - && !d->endcleared) { - /* XXXKW what is this for? */ - clear_advance(d->dma_buf, - d->sbufsz, - d->swptr, - d->fragsize, - 0); - d->endcleared = 1; - } - if ( (d->count <= (signed) d->sbufsz/2) || intflag) - { - CS_DBGOUT(CS_WAVE_WRITE, 4, - printk(KERN_INFO - "cs4297a: update count -> %d\n", d->count)); - wake_up(&d->wait); - } - } - CS_DBGOUT(CS_PARMS, 8, printk(KERN_INFO - "cs4297a: cs4297a_update_ptr(): s=0x%.8x hwptr=%d total_bytes=%d count=%d \n", - (unsigned) s, d->hwptr, - d->total_bytes, d->count)); - } -} - -static int mixer_ioctl(struct cs4297a_state *s, unsigned int cmd, - unsigned long arg) -{ - // Index to mixer_src[] is value of AC97 Input Mux Select Reg. - // Value of array member is recording source Device ID Mask. - static const unsigned int mixer_src[8] = { - SOUND_MASK_MIC, SOUND_MASK_CD, 0, SOUND_MASK_LINE1, - SOUND_MASK_LINE, SOUND_MASK_VOLUME, 0, 0 - }; - - // Index of mixtable1[] member is Device ID - // and must be <= SOUND_MIXER_NRDEVICES. - // Value of array member is index into s->mix.vol[] - static const unsigned char mixtable1[SOUND_MIXER_NRDEVICES] = { - [SOUND_MIXER_PCM] = 1, // voice - [SOUND_MIXER_LINE1] = 2, // AUX - [SOUND_MIXER_CD] = 3, // CD - [SOUND_MIXER_LINE] = 4, // Line - [SOUND_MIXER_SYNTH] = 5, // FM - [SOUND_MIXER_MIC] = 6, // Mic - [SOUND_MIXER_SPEAKER] = 7, // Speaker - [SOUND_MIXER_RECLEV] = 8, // Recording level - [SOUND_MIXER_VOLUME] = 9 // Master Volume - }; - - static const unsigned mixreg[] = { - AC97_PCMOUT_VOL, - AC97_AUX_VOL, - AC97_CD_VOL, - AC97_LINEIN_VOL - }; - unsigned char l, r, rl, rr, vidx; - unsigned char attentbl[11] = - { 63, 42, 26, 17, 14, 11, 8, 6, 4, 2, 0 }; - unsigned temp1; - int i, val; - - VALIDATE_STATE(s); - CS_DBGOUT(CS_FUNCTION, 4, printk(KERN_INFO - "cs4297a: mixer_ioctl(): s=0x%.8x cmd=0x%.8x\n", - (unsigned) s, cmd)); -#if CSDEBUG - cs_printioctl(cmd); -#endif -#if CSDEBUG_INTERFACE - - if ((cmd == SOUND_MIXER_CS_GETDBGMASK) || - (cmd == SOUND_MIXER_CS_SETDBGMASK) || - (cmd == SOUND_MIXER_CS_GETDBGLEVEL) || - (cmd == SOUND_MIXER_CS_SETDBGLEVEL)) - { - switch (cmd) { - - case SOUND_MIXER_CS_GETDBGMASK: - return put_user(cs_debugmask, - (unsigned long *) arg); - - case SOUND_MIXER_CS_GETDBGLEVEL: - return put_user(cs_debuglevel, - (unsigned long *) arg); - - case SOUND_MIXER_CS_SETDBGMASK: - if (get_user(val, (unsigned long *) arg)) - return -EFAULT; - cs_debugmask = val; - return 0; - - case SOUND_MIXER_CS_SETDBGLEVEL: - if (get_user(val, (unsigned long *) arg)) - return -EFAULT; - cs_debuglevel = val; - return 0; - default: - CS_DBGOUT(CS_ERROR, 1, printk(KERN_INFO - "cs4297a: mixer_ioctl(): ERROR unknown debug cmd\n")); - return 0; - } - } -#endif - - if (cmd == SOUND_MIXER_PRIVATE1) { - return -EINVAL; - } - if (cmd == SOUND_MIXER_PRIVATE2) { - // enable/disable/query spatializer - if (get_user(val, (int *) arg)) - return -EFAULT; - if (val != -1) { - temp1 = (val & 0x3f) >> 2; - cs4297a_write_ac97(s, AC97_3D_CONTROL, temp1); - cs4297a_read_ac97(s, AC97_GENERAL_PURPOSE, - &temp1); - cs4297a_write_ac97(s, AC97_GENERAL_PURPOSE, - temp1 | 0x2000); - } - cs4297a_read_ac97(s, AC97_3D_CONTROL, &temp1); - return put_user((temp1 << 2) | 3, (int *) arg); - } - if (cmd == SOUND_MIXER_INFO) { - mixer_info info; - memset(&info, 0, sizeof(info)); - strlcpy(info.id, "CS4297a", sizeof(info.id)); - strlcpy(info.name, "Crystal CS4297a", sizeof(info.name)); - info.modify_counter = s->mix.modcnt; - if (copy_to_user((void *) arg, &info, sizeof(info))) - return -EFAULT; - return 0; - } - if (cmd == SOUND_OLD_MIXER_INFO) { - _old_mixer_info info; - memset(&info, 0, sizeof(info)); - strlcpy(info.id, "CS4297a", sizeof(info.id)); - strlcpy(info.name, "Crystal CS4297a", sizeof(info.name)); - if (copy_to_user((void *) arg, &info, sizeof(info))) - return -EFAULT; - return 0; - } - if (cmd == OSS_GETVERSION) - return put_user(SOUND_VERSION, (int *) arg); - - if (_IOC_TYPE(cmd) != 'M' || _SIOC_SIZE(cmd) != sizeof(int)) - return -EINVAL; - - // If ioctl has only the SIOC_READ bit(bit 31) - // on, process the only-read commands. - if (_SIOC_DIR(cmd) == _SIOC_READ) { - switch (_IOC_NR(cmd)) { - case SOUND_MIXER_RECSRC: // Arg contains a bit for each recording source - cs4297a_read_ac97(s, AC97_RECORD_SELECT, - &temp1); - return put_user(mixer_src[temp1 & 7], (int *) arg); - - case SOUND_MIXER_DEVMASK: // Arg contains a bit for each supported device - return put_user(SOUND_MASK_PCM | SOUND_MASK_LINE | - SOUND_MASK_VOLUME | SOUND_MASK_RECLEV, - (int *) arg); - - case SOUND_MIXER_RECMASK: // Arg contains a bit for each supported recording source - return put_user(SOUND_MASK_LINE | SOUND_MASK_VOLUME, - (int *) arg); - - case SOUND_MIXER_STEREODEVS: // Mixer channels supporting stereo - return put_user(SOUND_MASK_PCM | SOUND_MASK_LINE | - SOUND_MASK_VOLUME | SOUND_MASK_RECLEV, - (int *) arg); - - case SOUND_MIXER_CAPS: - return put_user(SOUND_CAP_EXCL_INPUT, (int *) arg); - - default: - i = _IOC_NR(cmd); - if (i >= SOUND_MIXER_NRDEVICES - || !(vidx = mixtable1[i])) - return -EINVAL; - return put_user(s->mix.vol[vidx - 1], (int *) arg); - } - } - // If ioctl doesn't have both the SIOC_READ and - // the SIOC_WRITE bit set, return invalid. - if (_SIOC_DIR(cmd) != (_SIOC_READ | _SIOC_WRITE)) - return -EINVAL; - - // Increment the count of volume writes. - s->mix.modcnt++; - - // Isolate the command; it must be a write. - switch (_IOC_NR(cmd)) { - - case SOUND_MIXER_RECSRC: // Arg contains a bit for each recording source - if (get_user(val, (int *) arg)) - return -EFAULT; - i = hweight32(val); // i = # bits on in val. - if (i != 1) // One & only 1 bit must be on. - return 0; - for (i = 0; i < sizeof(mixer_src) / sizeof(int); i++) { - if (val == mixer_src[i]) { - temp1 = (i << 8) | i; - cs4297a_write_ac97(s, - AC97_RECORD_SELECT, - temp1); - return 0; - } - } - return 0; - - case SOUND_MIXER_VOLUME: - if (get_user(val, (int *) arg)) - return -EFAULT; - l = val & 0xff; - if (l > 100) - l = 100; // Max soundcard.h vol is 100. - if (l < 6) { - rl = 63; - l = 0; - } else - rl = attentbl[(10 * l) / 100]; // Convert 0-100 vol to 63-0 atten. - - r = (val >> 8) & 0xff; - if (r > 100) - r = 100; // Max right volume is 100, too - if (r < 6) { - rr = 63; - r = 0; - } else - rr = attentbl[(10 * r) / 100]; // Convert volume to attenuation. - - if ((rl > 60) && (rr > 60)) // If both l & r are 'low', - temp1 = 0x8000; // turn on the mute bit. - else - temp1 = 0; - - temp1 |= (rl << 8) | rr; - - cs4297a_write_ac97(s, AC97_MASTER_VOL_STEREO, temp1); - cs4297a_write_ac97(s, AC97_PHONE_VOL, temp1); - -#ifdef OSS_DOCUMENTED_MIXER_SEMANTICS - s->mix.vol[8] = ((unsigned int) r << 8) | l; -#else - s->mix.vol[8] = val; -#endif - return put_user(s->mix.vol[8], (int *) arg); - - case SOUND_MIXER_SPEAKER: - if (get_user(val, (int *) arg)) - return -EFAULT; - l = val & 0xff; - if (l > 100) - l = 100; - if (l < 3) { - rl = 0; - l = 0; - } else { - rl = (l * 2 - 5) / 13; // Convert 0-100 range to 0-15. - l = (rl * 13 + 5) / 2; - } - - if (rl < 3) { - temp1 = 0x8000; - rl = 0; - } else - temp1 = 0; - rl = 15 - rl; // Convert volume to attenuation. - temp1 |= rl << 1; - cs4297a_write_ac97(s, AC97_PCBEEP_VOL, temp1); - -#ifdef OSS_DOCUMENTED_MIXER_SEMANTICS - s->mix.vol[6] = l << 8; -#else - s->mix.vol[6] = val; -#endif - return put_user(s->mix.vol[6], (int *) arg); - - case SOUND_MIXER_RECLEV: - if (get_user(val, (int *) arg)) - return -EFAULT; - l = val & 0xff; - if (l > 100) - l = 100; - r = (val >> 8) & 0xff; - if (r > 100) - r = 100; - rl = (l * 2 - 5) / 13; // Convert 0-100 scale to 0-15. - rr = (r * 2 - 5) / 13; - if (rl < 3 && rr < 3) - temp1 = 0x8000; - else - temp1 = 0; - - temp1 = temp1 | (rl << 8) | rr; - cs4297a_write_ac97(s, AC97_RECORD_GAIN, temp1); - -#ifdef OSS_DOCUMENTED_MIXER_SEMANTICS - s->mix.vol[7] = ((unsigned int) r << 8) | l; -#else - s->mix.vol[7] = val; -#endif - return put_user(s->mix.vol[7], (int *) arg); - - case SOUND_MIXER_MIC: - if (get_user(val, (int *) arg)) - return -EFAULT; - l = val & 0xff; - if (l > 100) - l = 100; - if (l < 1) { - l = 0; - rl = 0; - } else { - rl = ((unsigned) l * 5 - 4) / 16; // Convert 0-100 range to 0-31. - l = (rl * 16 + 4) / 5; - } - cs4297a_read_ac97(s, AC97_MIC_VOL, &temp1); - temp1 &= 0x40; // Isolate 20db gain bit. - if (rl < 3) { - temp1 |= 0x8000; - rl = 0; - } - rl = 31 - rl; // Convert volume to attenuation. - temp1 |= rl; - cs4297a_write_ac97(s, AC97_MIC_VOL, temp1); - -#ifdef OSS_DOCUMENTED_MIXER_SEMANTICS - s->mix.vol[5] = val << 8; -#else - s->mix.vol[5] = val; -#endif - return put_user(s->mix.vol[5], (int *) arg); - - - case SOUND_MIXER_SYNTH: - if (get_user(val, (int *) arg)) - return -EFAULT; - l = val & 0xff; - if (l > 100) - l = 100; - if (get_user(val, (int *) arg)) - return -EFAULT; - r = (val >> 8) & 0xff; - if (r > 100) - r = 100; - rl = (l * 2 - 11) / 3; // Convert 0-100 range to 0-63. - rr = (r * 2 - 11) / 3; - if (rl < 3) // If l is low, turn on - temp1 = 0x0080; // the mute bit. - else - temp1 = 0; - - rl = 63 - rl; // Convert vol to attenuation. -// writel(temp1 | rl, s->pBA0 + FMLVC); - if (rr < 3) // If rr is low, turn on - temp1 = 0x0080; // the mute bit. - else - temp1 = 0; - rr = 63 - rr; // Convert vol to attenuation. -// writel(temp1 | rr, s->pBA0 + FMRVC); - -#ifdef OSS_DOCUMENTED_MIXER_SEMANTICS - s->mix.vol[4] = (r << 8) | l; -#else - s->mix.vol[4] = val; -#endif - return put_user(s->mix.vol[4], (int *) arg); - - - default: - CS_DBGOUT(CS_IOCTL, 4, printk(KERN_INFO - "cs4297a: mixer_ioctl(): default\n")); - - i = _IOC_NR(cmd); - if (i >= SOUND_MIXER_NRDEVICES || !(vidx = mixtable1[i])) - return -EINVAL; - if (get_user(val, (int *) arg)) - return -EFAULT; - l = val & 0xff; - if (l > 100) - l = 100; - if (l < 1) { - l = 0; - rl = 31; - } else - rl = (attentbl[(l * 10) / 100]) >> 1; - - r = (val >> 8) & 0xff; - if (r > 100) - r = 100; - if (r < 1) { - r = 0; - rr = 31; - } else - rr = (attentbl[(r * 10) / 100]) >> 1; - if ((rl > 30) && (rr > 30)) - temp1 = 0x8000; - else - temp1 = 0; - temp1 = temp1 | (rl << 8) | rr; - cs4297a_write_ac97(s, mixreg[vidx - 1], temp1); - -#ifdef OSS_DOCUMENTED_MIXER_SEMANTICS - s->mix.vol[vidx - 1] = ((unsigned int) r << 8) | l; -#else - s->mix.vol[vidx - 1] = val; -#endif - return put_user(s->mix.vol[vidx - 1], (int *) arg); - } -} - - -// --------------------------------------------------------------------- - -static int cs4297a_open_mixdev(struct inode *inode, struct file *file) -{ - int minor = iminor(inode); - struct cs4297a_state *s=NULL; - struct list_head *entry; - - CS_DBGOUT(CS_FUNCTION | CS_OPEN, 4, - printk(KERN_INFO "cs4297a: cs4297a_open_mixdev()+\n")); - - mutex_lock(&swarm_cs4297a_mutex); - list_for_each(entry, &cs4297a_devs) - { - s = list_entry(entry, struct cs4297a_state, list); - if(s->dev_mixer == minor) - break; - } - if (!s) - { - CS_DBGOUT(CS_FUNCTION | CS_OPEN | CS_ERROR, 2, - printk(KERN_INFO "cs4297a: cs4297a_open_mixdev()- -ENODEV\n")); - - mutex_unlock(&swarm_cs4297a_mutex); - return -ENODEV; - } - VALIDATE_STATE(s); - file->private_data = s; - - CS_DBGOUT(CS_FUNCTION | CS_OPEN, 4, - printk(KERN_INFO "cs4297a: cs4297a_open_mixdev()- 0\n")); - mutex_unlock(&swarm_cs4297a_mutex); - - return nonseekable_open(inode, file); -} - - -static int cs4297a_release_mixdev(struct inode *inode, struct file *file) -{ - struct cs4297a_state *s = - (struct cs4297a_state *) file->private_data; - - VALIDATE_STATE(s); - return 0; -} - - -static int cs4297a_ioctl_mixdev(struct file *file, - unsigned int cmd, unsigned long arg) -{ - int ret; - mutex_lock(&swarm_cs4297a_mutex); - ret = mixer_ioctl((struct cs4297a_state *) file->private_data, cmd, - arg); - mutex_unlock(&swarm_cs4297a_mutex); - return ret; -} - - -// ****************************************************************************************** -// Mixer file operations struct. -// ****************************************************************************************** -static const struct file_operations cs4297a_mixer_fops = { - .owner = THIS_MODULE, - .llseek = no_llseek, - .unlocked_ioctl = cs4297a_ioctl_mixdev, - .open = cs4297a_open_mixdev, - .release = cs4297a_release_mixdev, -}; - -// --------------------------------------------------------------------- - - -static int drain_adc(struct cs4297a_state *s, int nonblock) -{ - /* This routine serves no purpose currently - any samples - sitting in the receive queue will just be processed by the - background consumer. This would be different if DMA - actually stopped when there were no clients. */ - return 0; -} - -static int drain_dac(struct cs4297a_state *s, int nonblock) -{ - DECLARE_WAITQUEUE(wait, current); - unsigned long flags; - unsigned hwptr; - unsigned tmo; - int count; - - if (s->dma_dac.mapped) - return 0; - if (nonblock) - return -EBUSY; - add_wait_queue(&s->dma_dac.wait, &wait); - while ((count = __raw_readq(SS_CSR(R_SER_DMA_DSCR_COUNT_TX))) || - (s->dma_dac.count > 0)) { - if (!signal_pending(current)) { - set_current_state(TASK_INTERRUPTIBLE); - /* XXXKW is this calculation working? */ - tmo = ((count * FRAME_TX_US) * HZ) / 1000000; - schedule_timeout(tmo + 1); - } else { - /* XXXKW do I care if there is a signal pending? */ - } - } - spin_lock_irqsave(&s->lock, flags); - /* Reset the bookkeeping */ - hwptr = (int)(((__raw_readq(SS_CSR(R_SER_DMA_CUR_DSCR_ADDR_TX)) & M_DMA_CURDSCR_ADDR) - - s->dma_dac.descrtab_phys) / sizeof(serdma_descr_t)); - s->dma_dac.hwptr = s->dma_dac.swptr = hwptr; - spin_unlock_irqrestore(&s->lock, flags); - remove_wait_queue(&s->dma_dac.wait, &wait); - __set_current_state(TASK_RUNNING); - return 0; -} - - -// --------------------------------------------------------------------- - -static ssize_t cs4297a_read(struct file *file, char *buffer, size_t count, - loff_t * ppos) -{ - struct cs4297a_state *s = - (struct cs4297a_state *) file->private_data; - ssize_t ret; - unsigned long flags; - int cnt, count_fr, cnt_by; - unsigned copied = 0; - - CS_DBGOUT(CS_FUNCTION | CS_WAVE_READ, 2, - printk(KERN_INFO "cs4297a: cs4297a_read()+ %d \n", count)); - - VALIDATE_STATE(s); - if (s->dma_adc.mapped) - return -ENXIO; - if (!s->dma_adc.ready && (ret = prog_dmabuf_adc(s))) - return ret; - if (!access_ok(VERIFY_WRITE, buffer, count)) - return -EFAULT; - ret = 0; -// -// "count" is the amount of bytes to read (from app), is decremented each loop -// by the amount of bytes that have been returned to the user buffer. -// "cnt" is the running total of each read from the buffer (changes each loop) -// "buffer" points to the app's buffer -// "ret" keeps a running total of the amount of bytes that have been copied -// to the user buffer. -// "copied" is the total bytes copied into the user buffer for each loop. -// - while (count > 0) { - CS_DBGOUT(CS_WAVE_READ, 8, printk(KERN_INFO - "_read() count>0 count=%d .count=%d .swptr=%d .hwptr=%d \n", - count, s->dma_adc.count, - s->dma_adc.swptr, s->dma_adc.hwptr)); - spin_lock_irqsave(&s->lock, flags); - - /* cnt will be the number of available samples (16-bit - stereo); it starts out as the maxmimum consequetive - samples */ - cnt = (s->dma_adc.sb_end - s->dma_adc.sb_swptr) / 2; - count_fr = s->dma_adc.count / FRAME_SAMPLE_BYTES; - - // dma_adc.count is the current total bytes that have not been read. - // if the amount of unread bytes from the current sw pointer to the - // end of the buffer is greater than the current total bytes that - // have not been read, then set the "cnt" (unread bytes) to the - // amount of unread bytes. - - if (count_fr < cnt) - cnt = count_fr; - cnt_by = cnt * FRAME_SAMPLE_BYTES; - spin_unlock_irqrestore(&s->lock, flags); - // - // if we are converting from 8/16 then we need to copy - // twice the number of 16 bit bytes then 8 bit bytes. - // - if (s->conversion) { - if (cnt_by > (count * 2)) { - cnt = (count * 2) / FRAME_SAMPLE_BYTES; - cnt_by = count * 2; - } - } else { - if (cnt_by > count) { - cnt = count / FRAME_SAMPLE_BYTES; - cnt_by = count; - } - } - // - // "cnt" NOW is the smaller of the amount that will be read, - // and the amount that is requested in this read (or partial). - // if there are no bytes in the buffer to read, then start the - // ADC and wait for the interrupt handler to wake us up. - // - if (cnt <= 0) { - - // start up the dma engine and then continue back to the top of - // the loop when wake up occurs. - start_adc(s); - if (file->f_flags & O_NONBLOCK) - return ret ? ret : -EAGAIN; - oss_broken_sleep_on(&s->dma_adc.wait, MAX_SCHEDULE_TIMEOUT); - if (signal_pending(current)) - return ret ? ret : -ERESTARTSYS; - continue; - } - // there are bytes in the buffer to read. - // copy from the hw buffer over to the user buffer. - // user buffer is designated by "buffer" - // virtual address to copy from is dma_buf+swptr - // the "cnt" is the number of bytes to read. - - CS_DBGOUT(CS_WAVE_READ, 2, printk(KERN_INFO - "_read() copy_to cnt=%d count=%d ", cnt_by, count)); - CS_DBGOUT(CS_WAVE_READ, 8, printk(KERN_INFO - " .sbufsz=%d .count=%d buffer=0x%.8x ret=%d\n", - s->dma_adc.sbufsz, s->dma_adc.count, - (unsigned) buffer, ret)); - - if (copy_to_user (buffer, ((void *)s->dma_adc.sb_swptr), cnt_by)) - return ret ? ret : -EFAULT; - copied = cnt_by; - - /* Return the descriptors */ - spin_lock_irqsave(&s->lock, flags); - CS_DBGOUT(CS_FUNCTION, 2, - printk(KERN_INFO "cs4297a: upd_rcv sw->hw %x/%x\n", s->dma_adc.swptr, s->dma_adc.hwptr)); - s->dma_adc.count -= cnt_by; - s->dma_adc.sb_swptr += cnt * 2; - if (s->dma_adc.sb_swptr == s->dma_adc.sb_end) - s->dma_adc.sb_swptr = s->dma_adc.sample_buf; - spin_unlock_irqrestore(&s->lock, flags); - count -= copied; - buffer += copied; - ret += copied; - start_adc(s); - } - CS_DBGOUT(CS_FUNCTION | CS_WAVE_READ, 2, - printk(KERN_INFO "cs4297a: cs4297a_read()- %d\n", ret)); - return ret; -} - - -static ssize_t cs4297a_write(struct file *file, const char *buffer, - size_t count, loff_t * ppos) -{ - struct cs4297a_state *s = - (struct cs4297a_state *) file->private_data; - ssize_t ret; - unsigned long flags; - unsigned swptr, hwptr; - int cnt; - - CS_DBGOUT(CS_FUNCTION | CS_WAVE_WRITE, 2, - printk(KERN_INFO "cs4297a: cs4297a_write()+ count=%d\n", - count)); - VALIDATE_STATE(s); - - if (s->dma_dac.mapped) - return -ENXIO; - if (!s->dma_dac.ready && (ret = prog_dmabuf_dac(s))) - return ret; - if (!access_ok(VERIFY_READ, buffer, count)) - return -EFAULT; - ret = 0; - while (count > 0) { - serdma_t *d = &s->dma_dac; - int copy_cnt; - u32 *s_tmpl; - u32 *t_tmpl; - u32 left, right; - int swap = (s->prop_dac.fmt == AFMT_S16_LE) || (s->prop_dac.fmt == AFMT_U16_LE); - - /* XXXXXX this is broken for BLOAT_FACTOR */ - spin_lock_irqsave(&s->lock, flags); - if (d->count < 0) { - d->count = 0; - d->swptr = d->hwptr; - } - if (d->underrun) { - d->underrun = 0; - hwptr = (unsigned) (((__raw_readq(SS_CSR(R_SER_DMA_CUR_DSCR_ADDR_TX)) & M_DMA_CURDSCR_ADDR) - - d->descrtab_phys) / sizeof(serdma_descr_t)); - d->swptr = d->hwptr = hwptr; - } - swptr = d->swptr; - cnt = d->sbufsz - (swptr * FRAME_SAMPLE_BYTES); - /* Will this write fill up the buffer? */ - if (d->count + cnt > d->sbufsz) - cnt = d->sbufsz - d->count; - spin_unlock_irqrestore(&s->lock, flags); - if (cnt > count) - cnt = count; - if (cnt <= 0) { - start_dac(s); - if (file->f_flags & O_NONBLOCK) - return ret ? ret : -EAGAIN; - oss_broken_sleep_on(&d->wait, MAX_SCHEDULE_TIMEOUT); - if (signal_pending(current)) - return ret ? ret : -ERESTARTSYS; - continue; - } - if (copy_from_user(d->sample_buf, buffer, cnt)) - return ret ? ret : -EFAULT; - - copy_cnt = cnt; - s_tmpl = (u32 *)d->sample_buf; - t_tmpl = (u32 *)(d->dma_buf + (swptr * 4)); - - /* XXXKW assuming 16-bit stereo! */ - do { - u32 tmp; - - t_tmpl[0] = cpu_to_be32(0x98000000); - - tmp = be32_to_cpu(s_tmpl[0]); - left = tmp & 0xffff; - right = tmp >> 16; - if (swap) { - left = swab16(left); - right = swab16(right); - } - t_tmpl[1] = cpu_to_be32(left >> 8); - t_tmpl[2] = cpu_to_be32(((left & 0xff) << 24) | - (right << 4)); - - s_tmpl++; - t_tmpl += 8; - copy_cnt -= 4; - } while (copy_cnt); - - /* Mux in any pending read/write accesses */ - if (s->reg_request) { - *(u64 *)(d->dma_buf + (swptr * 4)) |= - cpu_to_be64(s->reg_request); - s->reg_request = 0; - wake_up(&s->dma_dac.reg_wait); - } - - CS_DBGOUT(CS_WAVE_WRITE, 4, - printk(KERN_INFO - "cs4297a: copy in %d to swptr %x\n", cnt, swptr)); - - swptr = (swptr + (cnt/FRAME_SAMPLE_BYTES)) % d->ringsz; - __raw_writeq(cnt/FRAME_SAMPLE_BYTES, SS_CSR(R_SER_DMA_DSCR_COUNT_TX)); - spin_lock_irqsave(&s->lock, flags); - d->swptr = swptr; - d->count += cnt; - d->endcleared = 0; - spin_unlock_irqrestore(&s->lock, flags); - count -= cnt; - buffer += cnt; - ret += cnt; - start_dac(s); - } - CS_DBGOUT(CS_FUNCTION | CS_WAVE_WRITE, 2, - printk(KERN_INFO "cs4297a: cs4297a_write()- %d\n", ret)); - return ret; -} - - -static unsigned int cs4297a_poll(struct file *file, - struct poll_table_struct *wait) -{ - struct cs4297a_state *s = - (struct cs4297a_state *) file->private_data; - unsigned long flags; - unsigned int mask = 0; - - CS_DBGOUT(CS_FUNCTION | CS_WAVE_WRITE | CS_WAVE_READ, 4, - printk(KERN_INFO "cs4297a: cs4297a_poll()+\n")); - VALIDATE_STATE(s); - if (file->f_mode & FMODE_WRITE) { - CS_DBGOUT(CS_FUNCTION | CS_WAVE_WRITE | CS_WAVE_READ, 4, - printk(KERN_INFO - "cs4297a: cs4297a_poll() wait on FMODE_WRITE\n")); - if(!s->dma_dac.ready && prog_dmabuf_dac(s)) - return 0; - poll_wait(file, &s->dma_dac.wait, wait); - } - if (file->f_mode & FMODE_READ) { - CS_DBGOUT(CS_FUNCTION | CS_WAVE_WRITE | CS_WAVE_READ, 4, - printk(KERN_INFO - "cs4297a: cs4297a_poll() wait on FMODE_READ\n")); - if(!s->dma_dac.ready && prog_dmabuf_adc(s)) - return 0; - poll_wait(file, &s->dma_adc.wait, wait); - } - spin_lock_irqsave(&s->lock, flags); - cs4297a_update_ptr(s,CS_FALSE); - if (file->f_mode & FMODE_WRITE) { - if (s->dma_dac.mapped) { - if (s->dma_dac.count >= - (signed) s->dma_dac.fragsize) { - if (s->dma_dac.wakeup) - mask |= POLLOUT | POLLWRNORM; - else - mask = 0; - s->dma_dac.wakeup = 0; - } - } else { - if ((signed) (s->dma_dac.sbufsz/2) >= s->dma_dac.count) - mask |= POLLOUT | POLLWRNORM; - } - } else if (file->f_mode & FMODE_READ) { - if (s->dma_adc.mapped) { - if (s->dma_adc.count >= (signed) s->dma_adc.fragsize) - mask |= POLLIN | POLLRDNORM; - } else { - if (s->dma_adc.count > 0) - mask |= POLLIN | POLLRDNORM; - } - } - spin_unlock_irqrestore(&s->lock, flags); - CS_DBGOUT(CS_FUNCTION | CS_WAVE_WRITE | CS_WAVE_READ, 4, - printk(KERN_INFO "cs4297a: cs4297a_poll()- 0x%.8x\n", - mask)); - return mask; -} - - -static int cs4297a_mmap(struct file *file, struct vm_area_struct *vma) -{ - /* XXXKW currently no mmap support */ - return -EINVAL; - return 0; -} - - -static int cs4297a_ioctl(struct file *file, - unsigned int cmd, unsigned long arg) -{ - struct cs4297a_state *s = - (struct cs4297a_state *) file->private_data; - unsigned long flags; - audio_buf_info abinfo; - count_info cinfo; - int val, mapped, ret; - - CS_DBGOUT(CS_FUNCTION|CS_IOCTL, 4, printk(KERN_INFO - "cs4297a: cs4297a_ioctl(): file=0x%.8x cmd=0x%.8x\n", - (unsigned) file, cmd)); -#if CSDEBUG - cs_printioctl(cmd); -#endif - VALIDATE_STATE(s); - mapped = ((file->f_mode & FMODE_WRITE) && s->dma_dac.mapped) || - ((file->f_mode & FMODE_READ) && s->dma_adc.mapped); - switch (cmd) { - case OSS_GETVERSION: - CS_DBGOUT(CS_IOCTL | CS_PARMS, 4, printk(KERN_INFO - "cs4297a: cs4297a_ioctl(): SOUND_VERSION=0x%.8x\n", - SOUND_VERSION)); - return put_user(SOUND_VERSION, (int *) arg); - - case SNDCTL_DSP_SYNC: - CS_DBGOUT(CS_IOCTL, 4, printk(KERN_INFO - "cs4297a: cs4297a_ioctl(): DSP_SYNC\n")); - if (file->f_mode & FMODE_WRITE) - return drain_dac(s, - 0 /*file->f_flags & O_NONBLOCK */ - ); - return 0; - - case SNDCTL_DSP_SETDUPLEX: - return 0; - - case SNDCTL_DSP_GETCAPS: - return put_user(DSP_CAP_DUPLEX | DSP_CAP_REALTIME | - DSP_CAP_TRIGGER | DSP_CAP_MMAP, - (int *) arg); - - case SNDCTL_DSP_RESET: - CS_DBGOUT(CS_IOCTL, 4, printk(KERN_INFO - "cs4297a: cs4297a_ioctl(): DSP_RESET\n")); - if (file->f_mode & FMODE_WRITE) { - stop_dac(s); - synchronize_irq(s->irq); - s->dma_dac.count = s->dma_dac.total_bytes = - s->dma_dac.blocks = s->dma_dac.wakeup = 0; - s->dma_dac.swptr = s->dma_dac.hwptr = - (int)(((__raw_readq(SS_CSR(R_SER_DMA_CUR_DSCR_ADDR_TX)) & M_DMA_CURDSCR_ADDR) - - s->dma_dac.descrtab_phys) / sizeof(serdma_descr_t)); - } - if (file->f_mode & FMODE_READ) { - stop_adc(s); - synchronize_irq(s->irq); - s->dma_adc.count = s->dma_adc.total_bytes = - s->dma_adc.blocks = s->dma_dac.wakeup = 0; - s->dma_adc.swptr = s->dma_adc.hwptr = - (int)(((__raw_readq(SS_CSR(R_SER_DMA_CUR_DSCR_ADDR_RX)) & M_DMA_CURDSCR_ADDR) - - s->dma_adc.descrtab_phys) / sizeof(serdma_descr_t)); - } - return 0; - - case SNDCTL_DSP_SPEED: - if (get_user(val, (int *) arg)) - return -EFAULT; - CS_DBGOUT(CS_IOCTL | CS_PARMS, 4, printk(KERN_INFO - "cs4297a: cs4297a_ioctl(): DSP_SPEED val=%d -> 48000\n", val)); - val = 48000; - return put_user(val, (int *) arg); - - case SNDCTL_DSP_STEREO: - if (get_user(val, (int *) arg)) - return -EFAULT; - CS_DBGOUT(CS_IOCTL | CS_PARMS, 4, printk(KERN_INFO - "cs4297a: cs4297a_ioctl(): DSP_STEREO val=%d\n", val)); - if (file->f_mode & FMODE_READ) { - stop_adc(s); - s->dma_adc.ready = 0; - s->prop_adc.channels = val ? 2 : 1; - } - if (file->f_mode & FMODE_WRITE) { - stop_dac(s); - s->dma_dac.ready = 0; - s->prop_dac.channels = val ? 2 : 1; - } - return 0; - - case SNDCTL_DSP_CHANNELS: - if (get_user(val, (int *) arg)) - return -EFAULT; - CS_DBGOUT(CS_IOCTL | CS_PARMS, 4, printk(KERN_INFO - "cs4297a: cs4297a_ioctl(): DSP_CHANNELS val=%d\n", - val)); - if (val != 0) { - if (file->f_mode & FMODE_READ) { - stop_adc(s); - s->dma_adc.ready = 0; - if (val >= 2) - s->prop_adc.channels = 2; - else - s->prop_adc.channels = 1; - } - if (file->f_mode & FMODE_WRITE) { - stop_dac(s); - s->dma_dac.ready = 0; - if (val >= 2) - s->prop_dac.channels = 2; - else - s->prop_dac.channels = 1; - } - } - - if (file->f_mode & FMODE_WRITE) - val = s->prop_dac.channels; - else if (file->f_mode & FMODE_READ) - val = s->prop_adc.channels; - - return put_user(val, (int *) arg); - - case SNDCTL_DSP_GETFMTS: // Returns a mask - CS_DBGOUT(CS_IOCTL | CS_PARMS, 4, printk(KERN_INFO - "cs4297a: cs4297a_ioctl(): DSP_GETFMT val=0x%.8x\n", - AFMT_S16_LE | AFMT_U16_LE | AFMT_S8 | - AFMT_U8)); - return put_user(AFMT_S16_LE | AFMT_U16_LE | AFMT_S8 | - AFMT_U8, (int *) arg); - - case SNDCTL_DSP_SETFMT: - if (get_user(val, (int *) arg)) - return -EFAULT; - CS_DBGOUT(CS_IOCTL | CS_PARMS, 4, printk(KERN_INFO - "cs4297a: cs4297a_ioctl(): DSP_SETFMT val=0x%.8x\n", - val)); - if (val != AFMT_QUERY) { - if (file->f_mode & FMODE_READ) { - stop_adc(s); - s->dma_adc.ready = 0; - if (val != AFMT_S16_LE - && val != AFMT_U16_LE && val != AFMT_S8 - && val != AFMT_U8) - val = AFMT_U8; - s->prop_adc.fmt = val; - s->prop_adc.fmt_original = s->prop_adc.fmt; - } - if (file->f_mode & FMODE_WRITE) { - stop_dac(s); - s->dma_dac.ready = 0; - if (val != AFMT_S16_LE - && val != AFMT_U16_LE && val != AFMT_S8 - && val != AFMT_U8) - val = AFMT_U8; - s->prop_dac.fmt = val; - s->prop_dac.fmt_original = s->prop_dac.fmt; - } - } else { - if (file->f_mode & FMODE_WRITE) - val = s->prop_dac.fmt_original; - else if (file->f_mode & FMODE_READ) - val = s->prop_adc.fmt_original; - } - CS_DBGOUT(CS_IOCTL | CS_PARMS, 4, printk(KERN_INFO - "cs4297a: cs4297a_ioctl(): DSP_SETFMT return val=0x%.8x\n", - val)); - return put_user(val, (int *) arg); - - case SNDCTL_DSP_POST: - CS_DBGOUT(CS_IOCTL, 4, printk(KERN_INFO - "cs4297a: cs4297a_ioctl(): DSP_POST\n")); - return 0; - - case SNDCTL_DSP_GETTRIGGER: - val = 0; - if (file->f_mode & s->ena & FMODE_READ) - val |= PCM_ENABLE_INPUT; - if (file->f_mode & s->ena & FMODE_WRITE) - val |= PCM_ENABLE_OUTPUT; - return put_user(val, (int *) arg); - - case SNDCTL_DSP_SETTRIGGER: - if (get_user(val, (int *) arg)) - return -EFAULT; - if (file->f_mode & FMODE_READ) { - if (val & PCM_ENABLE_INPUT) { - if (!s->dma_adc.ready - && (ret = prog_dmabuf_adc(s))) - return ret; - start_adc(s); - } else - stop_adc(s); - } - if (file->f_mode & FMODE_WRITE) { - if (val & PCM_ENABLE_OUTPUT) { - if (!s->dma_dac.ready - && (ret = prog_dmabuf_dac(s))) - return ret; - start_dac(s); - } else - stop_dac(s); - } - return 0; - - case SNDCTL_DSP_GETOSPACE: - if (!(file->f_mode & FMODE_WRITE)) - return -EINVAL; - if (!s->dma_dac.ready && (val = prog_dmabuf_dac(s))) - return val; - spin_lock_irqsave(&s->lock, flags); - cs4297a_update_ptr(s,CS_FALSE); - abinfo.fragsize = s->dma_dac.fragsize; - if (s->dma_dac.mapped) - abinfo.bytes = s->dma_dac.sbufsz; - else - abinfo.bytes = - s->dma_dac.sbufsz - s->dma_dac.count; - abinfo.fragstotal = s->dma_dac.numfrag; - abinfo.fragments = abinfo.bytes >> s->dma_dac.fragshift; - CS_DBGOUT(CS_FUNCTION | CS_PARMS, 4, printk(KERN_INFO - "cs4297a: cs4297a_ioctl(): GETOSPACE .fragsize=%d .bytes=%d .fragstotal=%d .fragments=%d\n", - abinfo.fragsize,abinfo.bytes,abinfo.fragstotal, - abinfo.fragments)); - spin_unlock_irqrestore(&s->lock, flags); - return copy_to_user((void *) arg, &abinfo, - sizeof(abinfo)) ? -EFAULT : 0; - - case SNDCTL_DSP_GETISPACE: - if (!(file->f_mode & FMODE_READ)) - return -EINVAL; - if (!s->dma_adc.ready && (val = prog_dmabuf_adc(s))) - return val; - spin_lock_irqsave(&s->lock, flags); - cs4297a_update_ptr(s,CS_FALSE); - if (s->conversion) { - abinfo.fragsize = s->dma_adc.fragsize / 2; - abinfo.bytes = s->dma_adc.count / 2; - abinfo.fragstotal = s->dma_adc.numfrag; - abinfo.fragments = - abinfo.bytes >> (s->dma_adc.fragshift - 1); - } else { - abinfo.fragsize = s->dma_adc.fragsize; - abinfo.bytes = s->dma_adc.count; - abinfo.fragstotal = s->dma_adc.numfrag; - abinfo.fragments = - abinfo.bytes >> s->dma_adc.fragshift; - } - spin_unlock_irqrestore(&s->lock, flags); - return copy_to_user((void *) arg, &abinfo, - sizeof(abinfo)) ? -EFAULT : 0; - - case SNDCTL_DSP_NONBLOCK: - spin_lock(&file->f_lock); - file->f_flags |= O_NONBLOCK; - spin_unlock(&file->f_lock); - return 0; - - case SNDCTL_DSP_GETODELAY: - if (!(file->f_mode & FMODE_WRITE)) - return -EINVAL; - if(!s->dma_dac.ready && prog_dmabuf_dac(s)) - return 0; - spin_lock_irqsave(&s->lock, flags); - cs4297a_update_ptr(s,CS_FALSE); - val = s->dma_dac.count; - spin_unlock_irqrestore(&s->lock, flags); - return put_user(val, (int *) arg); - - case SNDCTL_DSP_GETIPTR: - if (!(file->f_mode & FMODE_READ)) - return -EINVAL; - if(!s->dma_adc.ready && prog_dmabuf_adc(s)) - return 0; - spin_lock_irqsave(&s->lock, flags); - cs4297a_update_ptr(s,CS_FALSE); - cinfo.bytes = s->dma_adc.total_bytes; - if (s->dma_adc.mapped) { - cinfo.blocks = - (cinfo.bytes >> s->dma_adc.fragshift) - - s->dma_adc.blocks; - s->dma_adc.blocks = - cinfo.bytes >> s->dma_adc.fragshift; - } else { - if (s->conversion) { - cinfo.blocks = - s->dma_adc.count / - 2 >> (s->dma_adc.fragshift - 1); - } else - cinfo.blocks = - s->dma_adc.count >> s->dma_adc. - fragshift; - } - if (s->conversion) - cinfo.ptr = s->dma_adc.hwptr / 2; - else - cinfo.ptr = s->dma_adc.hwptr; - if (s->dma_adc.mapped) - s->dma_adc.count &= s->dma_adc.fragsize - 1; - spin_unlock_irqrestore(&s->lock, flags); - return copy_to_user((void *) arg, &cinfo, sizeof(cinfo)) ? -EFAULT : 0; - - case SNDCTL_DSP_GETOPTR: - if (!(file->f_mode & FMODE_WRITE)) - return -EINVAL; - if(!s->dma_dac.ready && prog_dmabuf_dac(s)) - return 0; - spin_lock_irqsave(&s->lock, flags); - cs4297a_update_ptr(s,CS_FALSE); - cinfo.bytes = s->dma_dac.total_bytes; - if (s->dma_dac.mapped) { - cinfo.blocks = - (cinfo.bytes >> s->dma_dac.fragshift) - - s->dma_dac.blocks; - s->dma_dac.blocks = - cinfo.bytes >> s->dma_dac.fragshift; - } else { - cinfo.blocks = - s->dma_dac.count >> s->dma_dac.fragshift; - } - cinfo.ptr = s->dma_dac.hwptr; - if (s->dma_dac.mapped) - s->dma_dac.count &= s->dma_dac.fragsize - 1; - spin_unlock_irqrestore(&s->lock, flags); - return copy_to_user((void *) arg, &cinfo, sizeof(cinfo)) ? -EFAULT : 0; - - case SNDCTL_DSP_GETBLKSIZE: - if (file->f_mode & FMODE_WRITE) { - if ((val = prog_dmabuf_dac(s))) - return val; - return put_user(s->dma_dac.fragsize, (int *) arg); - } - if ((val = prog_dmabuf_adc(s))) - return val; - if (s->conversion) - return put_user(s->dma_adc.fragsize / 2, - (int *) arg); - else - return put_user(s->dma_adc.fragsize, (int *) arg); - - case SNDCTL_DSP_SETFRAGMENT: - if (get_user(val, (int *) arg)) - return -EFAULT; - return 0; // Say OK, but do nothing. - - case SNDCTL_DSP_SUBDIVIDE: - if ((file->f_mode & FMODE_READ && s->dma_adc.subdivision) - || (file->f_mode & FMODE_WRITE - && s->dma_dac.subdivision)) return -EINVAL; - if (get_user(val, (int *) arg)) - return -EFAULT; - if (val != 1 && val != 2 && val != 4) - return -EINVAL; - if (file->f_mode & FMODE_READ) - s->dma_adc.subdivision = val; - else if (file->f_mode & FMODE_WRITE) - s->dma_dac.subdivision = val; - return 0; - - case SOUND_PCM_READ_RATE: - if (file->f_mode & FMODE_READ) - return put_user(s->prop_adc.rate, (int *) arg); - else if (file->f_mode & FMODE_WRITE) - return put_user(s->prop_dac.rate, (int *) arg); - - case SOUND_PCM_READ_CHANNELS: - if (file->f_mode & FMODE_READ) - return put_user(s->prop_adc.channels, (int *) arg); - else if (file->f_mode & FMODE_WRITE) - return put_user(s->prop_dac.channels, (int *) arg); - - case SOUND_PCM_READ_BITS: - if (file->f_mode & FMODE_READ) - return - put_user( - (s->prop_adc. - fmt & (AFMT_S8 | AFMT_U8)) ? 8 : 16, - (int *) arg); - else if (file->f_mode & FMODE_WRITE) - return - put_user( - (s->prop_dac. - fmt & (AFMT_S8 | AFMT_U8)) ? 8 : 16, - (int *) arg); - - case SOUND_PCM_WRITE_FILTER: - case SNDCTL_DSP_SETSYNCRO: - case SOUND_PCM_READ_FILTER: - return -EINVAL; - } - return mixer_ioctl(s, cmd, arg); -} - -static long cs4297a_unlocked_ioctl(struct file *file, u_int cmd, u_long arg) -{ - int ret; - - mutex_lock(&swarm_cs4297a_mutex); - ret = cs4297a_ioctl(file, cmd, arg); - mutex_unlock(&swarm_cs4297a_mutex); - - return ret; -} - -static int cs4297a_release(struct inode *inode, struct file *file) -{ - struct cs4297a_state *s = - (struct cs4297a_state *) file->private_data; - - CS_DBGOUT(CS_FUNCTION | CS_RELEASE, 2, printk(KERN_INFO - "cs4297a: cs4297a_release(): inode=0x%.8x file=0x%.8x f_mode=0x%x\n", - (unsigned) inode, (unsigned) file, file->f_mode)); - VALIDATE_STATE(s); - - if (file->f_mode & FMODE_WRITE) { - drain_dac(s, file->f_flags & O_NONBLOCK); - mutex_lock(&s->open_sem_dac); - stop_dac(s); - dealloc_dmabuf(s, &s->dma_dac); - s->open_mode &= ~FMODE_WRITE; - mutex_unlock(&s->open_sem_dac); - wake_up(&s->open_wait_dac); - } - if (file->f_mode & FMODE_READ) { - drain_adc(s, file->f_flags & O_NONBLOCK); - mutex_lock(&s->open_sem_adc); - stop_adc(s); - dealloc_dmabuf(s, &s->dma_adc); - s->open_mode &= ~FMODE_READ; - mutex_unlock(&s->open_sem_adc); - wake_up(&s->open_wait_adc); - } - return 0; -} - -static int cs4297a_locked_open(struct inode *inode, struct file *file) -{ - int minor = iminor(inode); - struct cs4297a_state *s=NULL; - struct list_head *entry; - - CS_DBGOUT(CS_FUNCTION | CS_OPEN, 2, printk(KERN_INFO - "cs4297a: cs4297a_open(): inode=0x%.8x file=0x%.8x f_mode=0x%x\n", - (unsigned) inode, (unsigned) file, file->f_mode)); - CS_DBGOUT(CS_FUNCTION | CS_OPEN, 2, printk(KERN_INFO - "cs4297a: status = %08x\n", (int)__raw_readq(SS_CSR(R_SER_STATUS_DEBUG)))); - - list_for_each(entry, &cs4297a_devs) - { - s = list_entry(entry, struct cs4297a_state, list); - - if (!((s->dev_audio ^ minor) & ~0xf)) - break; - } - if (entry == &cs4297a_devs) - return -ENODEV; - if (!s) { - CS_DBGOUT(CS_FUNCTION | CS_OPEN, 2, printk(KERN_INFO - "cs4297a: cs4297a_open(): Error - unable to find audio state struct\n")); - return -ENODEV; - } - VALIDATE_STATE(s); - file->private_data = s; - - // wait for device to become free - if (!(file->f_mode & (FMODE_WRITE | FMODE_READ))) { - CS_DBGOUT(CS_FUNCTION | CS_OPEN | CS_ERROR, 2, printk(KERN_INFO - "cs4297a: cs4297a_open(): Error - must open READ and/or WRITE\n")); - return -ENODEV; - } - if (file->f_mode & FMODE_WRITE) { - if (__raw_readq(SS_CSR(R_SER_DMA_DSCR_COUNT_TX)) != 0) { - printk(KERN_ERR "cs4297a: TX pipe needs to drain\n"); - while (__raw_readq(SS_CSR(R_SER_DMA_DSCR_COUNT_TX))) - ; - } - - mutex_lock(&s->open_sem_dac); - while (s->open_mode & FMODE_WRITE) { - if (file->f_flags & O_NONBLOCK) { - mutex_unlock(&s->open_sem_dac); - return -EBUSY; - } - mutex_unlock(&s->open_sem_dac); - oss_broken_sleep_on(&s->open_wait_dac, MAX_SCHEDULE_TIMEOUT); - - if (signal_pending(current)) { - printk("open - sig pending\n"); - return -ERESTARTSYS; - } - mutex_lock(&s->open_sem_dac); - } - } - if (file->f_mode & FMODE_READ) { - mutex_lock(&s->open_sem_adc); - while (s->open_mode & FMODE_READ) { - if (file->f_flags & O_NONBLOCK) { - mutex_unlock(&s->open_sem_adc); - return -EBUSY; - } - mutex_unlock(&s->open_sem_adc); - oss_broken_sleep_on(&s->open_wait_adc, MAX_SCHEDULE_TIMEOUT); - - if (signal_pending(current)) { - printk("open - sig pending\n"); - return -ERESTARTSYS; - } - mutex_lock(&s->open_sem_adc); - } - } - s->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE); - if (file->f_mode & FMODE_READ) { - s->prop_adc.fmt = AFMT_S16_BE; - s->prop_adc.fmt_original = s->prop_adc.fmt; - s->prop_adc.channels = 2; - s->prop_adc.rate = 48000; - s->conversion = 0; - s->ena &= ~FMODE_READ; - s->dma_adc.ossfragshift = s->dma_adc.ossmaxfrags = - s->dma_adc.subdivision = 0; - mutex_unlock(&s->open_sem_adc); - - if (prog_dmabuf_adc(s)) { - CS_DBGOUT(CS_OPEN | CS_ERROR, 2, printk(KERN_ERR - "cs4297a: adc Program dmabufs failed.\n")); - cs4297a_release(inode, file); - return -ENOMEM; - } - } - if (file->f_mode & FMODE_WRITE) { - s->prop_dac.fmt = AFMT_S16_BE; - s->prop_dac.fmt_original = s->prop_dac.fmt; - s->prop_dac.channels = 2; - s->prop_dac.rate = 48000; - s->conversion = 0; - s->ena &= ~FMODE_WRITE; - s->dma_dac.ossfragshift = s->dma_dac.ossmaxfrags = - s->dma_dac.subdivision = 0; - mutex_unlock(&s->open_sem_dac); - - if (prog_dmabuf_dac(s)) { - CS_DBGOUT(CS_OPEN | CS_ERROR, 2, printk(KERN_ERR - "cs4297a: dac Program dmabufs failed.\n")); - cs4297a_release(inode, file); - return -ENOMEM; - } - } - CS_DBGOUT(CS_FUNCTION | CS_OPEN, 2, - printk(KERN_INFO "cs4297a: cs4297a_open()- 0\n")); - return nonseekable_open(inode, file); -} - -static int cs4297a_open(struct inode *inode, struct file *file) -{ - int ret; - - mutex_lock(&swarm_cs4297a_mutex); - ret = cs4297a_open(inode, file); - mutex_unlock(&swarm_cs4297a_mutex); - - return ret; -} - -// ****************************************************************************************** -// Wave (audio) file operations struct. -// ****************************************************************************************** -static const struct file_operations cs4297a_audio_fops = { - .owner = THIS_MODULE, - .llseek = no_llseek, - .read = cs4297a_read, - .write = cs4297a_write, - .poll = cs4297a_poll, - .unlocked_ioctl = cs4297a_unlocked_ioctl, - .mmap = cs4297a_mmap, - .open = cs4297a_open, - .release = cs4297a_release, -}; - -static void cs4297a_interrupt(int irq, void *dev_id) -{ - struct cs4297a_state *s = (struct cs4297a_state *) dev_id; - u32 status; - - status = __raw_readq(SS_CSR(R_SER_STATUS_DEBUG)); - - CS_DBGOUT(CS_INTERRUPT, 6, printk(KERN_INFO - "cs4297a: cs4297a_interrupt() HISR=0x%.8x\n", status)); - -#if 0 - /* XXXKW what check *should* be done here? */ - if (!(status & (M_SYNCSER_RX_EOP_COUNT | M_SYNCSER_RX_OVERRUN | M_SYNCSER_RX_SYNC_ERR))) { - status = __raw_readq(SS_CSR(R_SER_STATUS)); - printk(KERN_ERR "cs4297a: unexpected interrupt (status %08x)\n", status); - return; - } -#endif - - if (status & M_SYNCSER_RX_SYNC_ERR) { - status = __raw_readq(SS_CSR(R_SER_STATUS)); - printk(KERN_ERR "cs4297a: rx sync error (status %08x)\n", status); - return; - } - - if (status & M_SYNCSER_RX_OVERRUN) { - int newptr, i; - s->stats.rx_ovrrn++; - printk(KERN_ERR "cs4297a: receive FIFO overrun\n"); - - /* Fix things up: get the receive descriptor pool - clean and give them back to the hardware */ - while (__raw_readq(SS_CSR(R_SER_DMA_DSCR_COUNT_RX))) - ; - newptr = (unsigned) (((__raw_readq(SS_CSR(R_SER_DMA_CUR_DSCR_ADDR_RX)) & M_DMA_CURDSCR_ADDR) - - s->dma_adc.descrtab_phys) / sizeof(serdma_descr_t)); - for (i=0; i<DMA_DESCR; i++) { - s->dma_adc.descrtab[i].descr_a &= ~M_DMA_SERRX_SOP; - } - s->dma_adc.swptr = s->dma_adc.hwptr = newptr; - s->dma_adc.count = 0; - s->dma_adc.sb_swptr = s->dma_adc.sb_hwptr = s->dma_adc.sample_buf; - __raw_writeq(DMA_DESCR, SS_CSR(R_SER_DMA_DSCR_COUNT_RX)); - } - - spin_lock(&s->lock); - cs4297a_update_ptr(s,CS_TRUE); - spin_unlock(&s->lock); - - CS_DBGOUT(CS_INTERRUPT, 6, printk(KERN_INFO - "cs4297a: cs4297a_interrupt()-\n")); -} - -#if 0 -static struct initvol { - int mixch; - int vol; -} initvol[] __initdata = { - - {SOUND_MIXER_WRITE_VOLUME, 0x4040}, - {SOUND_MIXER_WRITE_PCM, 0x4040}, - {SOUND_MIXER_WRITE_SYNTH, 0x4040}, - {SOUND_MIXER_WRITE_CD, 0x4040}, - {SOUND_MIXER_WRITE_LINE, 0x4040}, - {SOUND_MIXER_WRITE_LINE1, 0x4040}, - {SOUND_MIXER_WRITE_RECLEV, 0x0000}, - {SOUND_MIXER_WRITE_SPEAKER, 0x4040}, - {SOUND_MIXER_WRITE_MIC, 0x0000} -}; -#endif - -static int __init cs4297a_init(void) -{ - struct cs4297a_state *s; - u32 pwr, id; - mm_segment_t fs; - int rval; - u64 cfg; - int mdio_val; - - CS_DBGOUT(CS_INIT | CS_FUNCTION, 2, printk(KERN_INFO - "cs4297a: cs4297a_init_module()+ \n")); - - mdio_val = __raw_readq(KSEG1 + A_MAC_REGISTER(2, R_MAC_MDIO)) & - (M_MAC_MDIO_DIR|M_MAC_MDIO_OUT); - - /* Check syscfg for synchronous serial on port 1 */ - cfg = __raw_readq(KSEG1 + A_SCD_SYSTEM_CFG); - if (!(cfg & M_SYS_SER1_ENABLE)) { - __raw_writeq(cfg | M_SYS_SER1_ENABLE, KSEG1+A_SCD_SYSTEM_CFG); - cfg = __raw_readq(KSEG1 + A_SCD_SYSTEM_CFG); - if (!(cfg & M_SYS_SER1_ENABLE)) { - printk(KERN_INFO "cs4297a: serial port 1 not configured for synchronous operation\n"); - return -1; - } - - printk(KERN_INFO "cs4297a: serial port 1 switching to synchronous operation\n"); - - /* Force the codec (on SWARM) to reset by clearing - GENO, preserving MDIO (no effect on CSWARM) */ - __raw_writeq(mdio_val, KSEG1+A_MAC_REGISTER(2, R_MAC_MDIO)); - udelay(10); - } - - /* Now set GENO */ - __raw_writeq(mdio_val | M_MAC_GENC, KSEG1+A_MAC_REGISTER(2, R_MAC_MDIO)); - /* Give the codec some time to finish resetting (start the bit clock) */ - udelay(100); - - if (!(s = kzalloc(sizeof(struct cs4297a_state), GFP_KERNEL))) { - CS_DBGOUT(CS_ERROR, 1, printk(KERN_ERR - "cs4297a: probe() no memory for state struct.\n")); - return -1; - } - s->magic = CS4297a_MAGIC; - init_waitqueue_head(&s->dma_adc.wait); - init_waitqueue_head(&s->dma_dac.wait); - init_waitqueue_head(&s->dma_adc.reg_wait); - init_waitqueue_head(&s->dma_dac.reg_wait); - init_waitqueue_head(&s->open_wait); - init_waitqueue_head(&s->open_wait_adc); - init_waitqueue_head(&s->open_wait_dac); - mutex_init(&s->open_sem_adc); - mutex_init(&s->open_sem_dac); - spin_lock_init(&s->lock); - - s->irq = K_INT_SER_1; - - if (request_irq - (s->irq, cs4297a_interrupt, 0, "Crystal CS4297a", s)) { - CS_DBGOUT(CS_INIT | CS_ERROR, 1, - printk(KERN_ERR "cs4297a: irq %u in use\n", s->irq)); - goto err_irq; - } - if ((s->dev_audio = register_sound_dsp(&cs4297a_audio_fops, -1)) < - 0) { - CS_DBGOUT(CS_INIT | CS_ERROR, 1, printk(KERN_ERR - "cs4297a: probe() register_sound_dsp() failed.\n")); - goto err_dev1; - } - if ((s->dev_mixer = register_sound_mixer(&cs4297a_mixer_fops, -1)) < - 0) { - CS_DBGOUT(CS_INIT | CS_ERROR, 1, printk(KERN_ERR - "cs4297a: probe() register_sound_mixer() failed.\n")); - goto err_dev2; - } - - if (ser_init(s) || dma_init(s)) { - CS_DBGOUT(CS_INIT | CS_ERROR, 1, printk(KERN_ERR - "cs4297a: ser_init failed.\n")); - goto err_dev3; - } - - do { - udelay(4000); - rval = cs4297a_read_ac97(s, AC97_POWER_CONTROL, &pwr); - } while (!rval && (pwr != 0xf)); - - if (!rval) { - char *sb1250_duart_present; - - fs = get_fs(); - set_fs(KERNEL_DS); -#if 0 - val = SOUND_MASK_LINE; - mixer_ioctl(s, SOUND_MIXER_WRITE_RECSRC, (unsigned long) &val); - for (i = 0; i < ARRAY_SIZE(initvol); i++) { - val = initvol[i].vol; - mixer_ioctl(s, initvol[i].mixch, (unsigned long) &val); - } -// cs4297a_write_ac97(s, 0x18, 0x0808); -#else - // cs4297a_write_ac97(s, 0x5e, 0x180); - cs4297a_write_ac97(s, 0x02, 0x0808); - cs4297a_write_ac97(s, 0x18, 0x0808); -#endif - set_fs(fs); - - list_add(&s->list, &cs4297a_devs); - - cs4297a_read_ac97(s, AC97_VENDOR_ID1, &id); - - sb1250_duart_present = symbol_get(sb1250_duart_present); - if (sb1250_duart_present) - sb1250_duart_present[1] = 0; - - printk(KERN_INFO "cs4297a: initialized (vendor id = %x)\n", id); - - CS_DBGOUT(CS_INIT | CS_FUNCTION, 2, - printk(KERN_INFO "cs4297a: cs4297a_init_module()-\n")); - - return 0; - } - - err_dev3: - unregister_sound_mixer(s->dev_mixer); - err_dev2: - unregister_sound_dsp(s->dev_audio); - err_dev1: - free_irq(s->irq, s); - err_irq: - kfree(s); - - printk(KERN_INFO "cs4297a: initialization failed\n"); - - return -1; -} - -static void __exit cs4297a_cleanup(void) -{ - /* - XXXKW - disable_irq, free_irq - drain DMA queue - disable DMA - disable TX/RX - free memory - */ - CS_DBGOUT(CS_INIT | CS_FUNCTION, 2, - printk(KERN_INFO "cs4297a: cleanup_cs4297a() finished\n")); -} - -// --------------------------------------------------------------------- - -MODULE_AUTHOR("Kip Walker, Broadcom Corp."); -MODULE_DESCRIPTION("Cirrus Logic CS4297a Driver for Broadcom SWARM board"); - -// --------------------------------------------------------------------- - -module_init(cs4297a_init); -module_exit(cs4297a_cleanup); |