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-rw-r--r--sound/oss/harmony.c1330
1 files changed, 0 insertions, 1330 deletions
diff --git a/sound/oss/harmony.c b/sound/oss/harmony.c
deleted file mode 100644
index 6601b28..0000000
--- a/sound/oss/harmony.c
+++ /dev/null
@@ -1,1330 +0,0 @@
-/*
- sound/oss/harmony.c
-
- This is a sound driver for ASP's and Lasi's Harmony sound chip
- and is unlikely to be used for anything other than on a HP PA-RISC.
-
- Harmony is found in HP 712s, 715/new and many other GSC based machines.
- On older 715 machines you'll find the technically identical chip
- called 'Vivace'. Both Harmony and Vicace are supported by this driver.
-
- Copyright 2000 (c) Linuxcare Canada, Alex deVries <alex@onefishtwo.ca>
- Copyright 2000-2003 (c) Helge Deller <deller@gmx.de>
- Copyright 2001 (c) Matthieu Delahaye <delahaym@esiee.fr>
- Copyright 2001 (c) Jean-Christophe Vaugeois <vaugeoij@esiee.fr>
- Copyright 2004 (c) Stuart Brady <sdbrady@ntlworld.com>
-
-
-TODO:
- - fix SNDCTL_DSP_GETOSPACE and SNDCTL_DSP_GETISPACE ioctls to
- return the real values
- - add private ioctl for selecting line- or microphone input
- (only one of them is available at the same time)
- - add module parameters
- - implement mmap functionality
- - implement gain meter ?
- - ...
-*/
-
-#include <linux/delay.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/ioport.h>
-#include <linux/types.h>
-#include <linux/mm.h>
-#include <linux/pci.h>
-
-#include <asm/parisc-device.h>
-#include <asm/io.h>
-
-#include "sound_config.h"
-
-
-#define PFX "harmony: "
-#define HARMONY_VERSION "V0.9a"
-
-#undef DEBUG
-#ifdef DEBUG
-# define DPRINTK printk
-#else
-# define DPRINTK(x,...)
-#endif
-
-
-#define MAX_BUFS 10 /* maximum number of rotating buffers */
-#define HARMONY_BUF_SIZE 4096 /* needs to be a multiple of PAGE_SIZE (4096)! */
-
-#define CNTL_C 0x80000000
-#define CNTL_ST 0x00000020
-#define CNTL_44100 0x00000015 /* HARMONY_SR_44KHZ */
-#define CNTL_8000 0x00000008 /* HARMONY_SR_8KHZ */
-
-#define GAINCTL_HE 0x08000000
-#define GAINCTL_LE 0x04000000
-#define GAINCTL_SE 0x02000000
-
-#define DSTATUS_PN 0x00000200
-#define DSTATUS_RN 0x00000002
-
-#define DSTATUS_IE 0x80000000
-
-#define HARMONY_DF_16BIT_LINEAR 0
-#define HARMONY_DF_8BIT_ULAW 1
-#define HARMONY_DF_8BIT_ALAW 2
-
-#define HARMONY_SS_MONO 0
-#define HARMONY_SS_STEREO 1
-
-#define HARMONY_SR_8KHZ 0x08
-#define HARMONY_SR_16KHZ 0x09
-#define HARMONY_SR_27KHZ 0x0A
-#define HARMONY_SR_32KHZ 0x0B
-#define HARMONY_SR_48KHZ 0x0E
-#define HARMONY_SR_9KHZ 0x0F
-#define HARMONY_SR_5KHZ 0x10
-#define HARMONY_SR_11KHZ 0x11
-#define HARMONY_SR_18KHZ 0x12
-#define HARMONY_SR_22KHZ 0x13
-#define HARMONY_SR_37KHZ 0x14
-#define HARMONY_SR_44KHZ 0x15
-#define HARMONY_SR_33KHZ 0x16
-#define HARMONY_SR_6KHZ 0x17
-
-/*
- * Some magics numbers used to auto-detect file formats
- */
-
-#define HARMONY_MAGIC_8B_ULAW 1
-#define HARMONY_MAGIC_8B_ALAW 27
-#define HARMONY_MAGIC_16B_LINEAR 3
-#define HARMONY_MAGIC_MONO 1
-#define HARMONY_MAGIC_STEREO 2
-
-/*
- * Channels Positions in mixer register
- */
-
-#define GAIN_HE_SHIFT 27
-#define GAIN_HE_MASK ( 1 << GAIN_HE_SHIFT)
-#define GAIN_LE_SHIFT 26
-#define GAIN_LE_MASK ( 1 << GAIN_LE_SHIFT)
-#define GAIN_SE_SHIFT 25
-#define GAIN_SE_MASK ( 1 << GAIN_SE_SHIFT)
-#define GAIN_IS_SHIFT 24
-#define GAIN_IS_MASK ( 1 << GAIN_IS_SHIFT)
-#define GAIN_MA_SHIFT 20
-#define GAIN_MA_MASK ( 0x0f << GAIN_MA_SHIFT)
-#define GAIN_LI_SHIFT 16
-#define GAIN_LI_MASK ( 0x0f << GAIN_LI_SHIFT)
-#define GAIN_RI_SHIFT 12
-#define GAIN_RI_MASK ( 0x0f << GAIN_RI_SHIFT)
-#define GAIN_LO_SHIFT 6
-#define GAIN_LO_MASK ( 0x3f << GAIN_LO_SHIFT)
-#define GAIN_RO_SHIFT 0
-#define GAIN_RO_MASK ( 0x3f << GAIN_RO_SHIFT)
-
-
-#define MAX_OUTPUT_LEVEL (GAIN_RO_MASK >> GAIN_RO_SHIFT)
-#define MAX_INPUT_LEVEL (GAIN_RI_MASK >> GAIN_RI_SHIFT)
-#define MAX_MONITOR_LEVEL (GAIN_MA_MASK >> GAIN_MA_SHIFT)
-
-#define MIXER_INTERNAL SOUND_MIXER_LINE1
-#define MIXER_LINEOUT SOUND_MIXER_LINE2
-#define MIXER_HEADPHONES SOUND_MIXER_LINE3
-
-#define MASK_INTERNAL SOUND_MASK_LINE1
-#define MASK_LINEOUT SOUND_MASK_LINE2
-#define MASK_HEADPHONES SOUND_MASK_LINE3
-
-/*
- * Channels Mask in mixer register
- */
-
-#define GAIN_TOTAL_SILENCE 0x00F00FFF
-#define GAIN_DEFAULT 0x0FF00000
-
-
-struct harmony_hpa {
- u8 unused000;
- u8 id;
- u8 teleshare_id;
- u8 unused003;
- u32 reset;
- u32 cntl;
- u32 gainctl;
- u32 pnxtadd;
- u32 pcuradd;
- u32 rnxtadd;
- u32 rcuradd;
- u32 dstatus;
- u32 ov;
- u32 pio;
- u32 unused02c;
- u32 unused030[3];
- u32 diag;
-};
-
-struct harmony_dev {
- struct harmony_hpa *hpa;
- struct parisc_device *dev;
- u32 current_gain;
- u32 dac_rate; /* 8000 ... 48000 (Hz) */
- u8 data_format; /* HARMONY_DF_xx_BIT_xxx */
- u8 sample_rate; /* HARMONY_SR_xx_KHZ */
- u8 stereo_select; /* HARMONY_SS_MONO or HARMONY_SS_STEREO */
- int format_initialized :1;
- int suspended_playing :1;
- int suspended_recording :1;
-
- int blocked_playing :1;
- int blocked_recording :1;
- int audio_open :1;
- int mixer_open :1;
-
- wait_queue_head_t wq_play, wq_record;
- int first_filled_play; /* first buffer containing data (next to play) */
- int nb_filled_play;
- int play_offset;
- int first_filled_record;
- int nb_filled_record;
-
- int dsp_unit, mixer_unit;
-};
-
-
-static struct harmony_dev harmony;
-
-
-/*
- * Dynamic sound buffer allocation and DMA memory
- */
-
-struct harmony_buffer {
- unsigned char *addr;
- dma_addr_t dma_handle;
- int dma_coherent; /* Zero if dma_alloc_coherent() fails */
- unsigned int len;
-};
-
-/*
- * Harmony memory buffers
- */
-
-static struct harmony_buffer played_buf, recorded_buf, silent, graveyard;
-
-
-#define CHECK_WBACK_INV_OFFSET(b,offset,len) \
- do { if (!b.dma_coherent) \
- dma_cache_wback_inv((unsigned long)b.addr+offset,len); \
- } while (0)
-
-
-static int __init harmony_alloc_buffer(struct harmony_buffer *b,
- unsigned int buffer_count)
-{
- b->len = buffer_count * HARMONY_BUF_SIZE;
- b->addr = dma_alloc_coherent(&harmony.dev->dev,
- b->len, &b->dma_handle, GFP_KERNEL|GFP_DMA);
- if (b->addr && b->dma_handle) {
- b->dma_coherent = 1;
- DPRINTK(KERN_INFO PFX "coherent memory: 0x%lx, played_buf: 0x%lx\n",
- (unsigned long)b->dma_handle, (unsigned long)b->addr);
- } else {
- b->dma_coherent = 0;
- /* kmalloc()ed memory will HPMC on ccio machines ! */
- b->addr = kmalloc(b->len, GFP_KERNEL);
- if (!b->addr) {
- printk(KERN_ERR PFX "couldn't allocate memory\n");
- return -EBUSY;
- }
- b->dma_handle = __pa(b->addr);
- }
- return 0;
-}
-
-static void __exit harmony_free_buffer(struct harmony_buffer *b)
-{
- if (!b->addr)
- return;
-
- if (b->dma_coherent)
- dma_free_coherent(&harmony.dev->dev,
- b->len, b->addr, b->dma_handle);
- else
- kfree(b->addr);
-
- memset(b, 0, sizeof(*b));
-}
-
-
-
-/*
- * Low-Level sound-chip programming
- */
-
-static void __inline__ harmony_wait_CNTL(void)
-{
- /* Wait until we're out of control mode */
- while (gsc_readl(&harmony.hpa->cntl) & CNTL_C)
- /* wait */ ;
-}
-
-
-static void harmony_update_control(void)
-{
- u32 default_cntl;
-
- /* Set CNTL */
- default_cntl = (CNTL_C | /* The C bit */
- (harmony.data_format << 6) | /* Set the data format */
- (harmony.stereo_select << 5) | /* Stereo select */
- (harmony.sample_rate)); /* Set sample rate */
- harmony.format_initialized = 1;
-
- /* initialize CNTL */
- gsc_writel(default_cntl, &harmony.hpa->cntl);
-}
-
-static void harmony_set_control(u8 data_format, u8 sample_rate, u8 stereo_select)
-{
- harmony.sample_rate = sample_rate;
- harmony.data_format = data_format;
- harmony.stereo_select = stereo_select;
- harmony_update_control();
-}
-
-static void harmony_set_rate(u8 data_rate)
-{
- harmony.sample_rate = data_rate;
- harmony_update_control();
-}
-
-static int harmony_detect_rate(int *freq)
-{
- int newrate;
- switch (*freq) {
- case 8000: newrate = HARMONY_SR_8KHZ; break;
- case 16000: newrate = HARMONY_SR_16KHZ; break;
- case 27428: newrate = HARMONY_SR_27KHZ; break;
- case 32000: newrate = HARMONY_SR_32KHZ; break;
- case 48000: newrate = HARMONY_SR_48KHZ; break;
- case 9600: newrate = HARMONY_SR_9KHZ; break;
- case 5512: newrate = HARMONY_SR_5KHZ; break;
- case 11025: newrate = HARMONY_SR_11KHZ; break;
- case 18900: newrate = HARMONY_SR_18KHZ; break;
- case 22050: newrate = HARMONY_SR_22KHZ; break;
- case 37800: newrate = HARMONY_SR_37KHZ; break;
- case 44100: newrate = HARMONY_SR_44KHZ; break;
- case 33075: newrate = HARMONY_SR_33KHZ; break;
- case 6615: newrate = HARMONY_SR_6KHZ; break;
- default: newrate = HARMONY_SR_8KHZ;
- *freq = 8000; break;
- }
- return newrate;
-}
-
-static void harmony_set_format(u8 data_format)
-{
- harmony.data_format = data_format;
- harmony_update_control();
-}
-
-static void harmony_set_stereo(u8 stereo_select)
-{
- harmony.stereo_select = stereo_select;
- harmony_update_control();
-}
-
-static void harmony_disable_interrupts(void)
-{
- harmony_wait_CNTL();
- gsc_writel(0, &harmony.hpa->dstatus);
-}
-
-static void harmony_enable_interrupts(void)
-{
- harmony_wait_CNTL();
- gsc_writel(DSTATUS_IE, &harmony.hpa->dstatus);
-}
-
-/*
- * harmony_silence()
- *
- * This subroutine fills in a buffer starting at location start and
- * silences for length bytes. This references the current
- * configuration of the audio format.
- *
- */
-
-static void harmony_silence(struct harmony_buffer *buffer, int start, int length)
-{
- u8 silence_char;
-
- /* Despite what you hear, silence is different in
- different audio formats. */
- switch (harmony.data_format) {
- case HARMONY_DF_8BIT_ULAW: silence_char = 0x55; break;
- case HARMONY_DF_8BIT_ALAW: silence_char = 0xff; break;
- case HARMONY_DF_16BIT_LINEAR: /* fall through */
- default: silence_char = 0;
- }
-
- memset(buffer->addr+start, silence_char, length);
-}
-
-
-static int harmony_audio_open(struct inode *inode, struct file *file)
-{
- if (harmony.audio_open)
- return -EBUSY;
-
- harmony.audio_open = 1;
- harmony.suspended_playing = harmony.suspended_recording = 1;
- harmony.blocked_playing = harmony.blocked_recording = 0;
- harmony.first_filled_play = harmony.first_filled_record = 0;
- harmony.nb_filled_play = harmony.nb_filled_record = 0;
- harmony.play_offset = 0;
- init_waitqueue_head(&harmony.wq_play);
- init_waitqueue_head(&harmony.wq_record);
-
- /* Start off in a balanced mode. */
- harmony_set_control(HARMONY_DF_8BIT_ULAW, HARMONY_SR_8KHZ, HARMONY_SS_MONO);
- harmony_update_control();
- harmony.format_initialized = 0;
-
- /* Clear out all the buffers and flush to cache */
- harmony_silence(&played_buf, 0, HARMONY_BUF_SIZE*MAX_BUFS);
- CHECK_WBACK_INV_OFFSET(played_buf, 0, HARMONY_BUF_SIZE*MAX_BUFS);
-
- return 0;
-}
-
-/*
- * Release (close) the audio device.
- */
-
-static int harmony_audio_release(struct inode *inode, struct file *file)
-{
- if (!harmony.audio_open)
- return -EBUSY;
-
- harmony.audio_open = 0;
-
- return 0;
-}
-
-/*
- * Read recorded data off the audio device.
- */
-
-static ssize_t harmony_audio_read(struct file *file,
- char *buffer,
- size_t size_count,
- loff_t *ppos)
-{
- int total_count = (int) size_count;
- int count = 0;
- int buf_to_read;
-
- while (count<total_count) {
- /* Wait until we're out of control mode */
- harmony_wait_CNTL();
-
- /* Figure out which buffer to fill in */
- if (harmony.nb_filled_record <= 2) {
- harmony.blocked_recording = 1;
- if (harmony.suspended_recording) {
- harmony.suspended_recording = 0;
- harmony_enable_interrupts();
- }
-
- interruptible_sleep_on(&harmony.wq_record);
- harmony.blocked_recording = 0;
- }
-
- if (harmony.nb_filled_record < 2)
- return -EBUSY;
-
- buf_to_read = harmony.first_filled_record;
-
- /* Copy the page to an aligned buffer */
- if (copy_to_user(buffer+count, recorded_buf.addr +
- (HARMONY_BUF_SIZE*buf_to_read),
- HARMONY_BUF_SIZE)) {
- count = -EFAULT;
- break;
- }
-
- harmony.nb_filled_record--;
- harmony.first_filled_record++;
- harmony.first_filled_record %= MAX_BUFS;
-
- count += HARMONY_BUF_SIZE;
- }
- return count;
-}
-
-
-
-
-/*
- * Here is the place where we try to recognize file format.
- * Sun/NeXT .au files begin with the string .snd
- * At offset 12 is specified the encoding.
- * At offset 16 is specified speed rate
- * At Offset 20 is specified the numbers of voices
- */
-
-#define four_bytes_to_u32(start) (file_header[start] << 24)|\
- (file_header[start+1] << 16)|\
- (file_header[start+2] << 8)|\
- (file_header[start+3]);
-
-#define test_rate(tested,real_value,harmony_value) if ((tested)<=(real_value))\
-
-
-static int harmony_format_auto_detect(const char *buffer, int block_size)
-{
- u8 file_header[24];
- u32 start_string;
- int ret = 0;
-
- if (block_size>24) {
- if (copy_from_user(file_header, buffer, sizeof(file_header)))
- ret = -EFAULT;
-
- start_string = four_bytes_to_u32(0);
-
- if ((file_header[4]==0) && (start_string==0x2E736E64)) {
- u32 format;
- u32 nb_voices;
- u32 speed;
-
- format = four_bytes_to_u32(12);
- nb_voices = four_bytes_to_u32(20);
- speed = four_bytes_to_u32(16);
-
- switch (format) {
- case HARMONY_MAGIC_8B_ULAW:
- harmony.data_format = HARMONY_DF_8BIT_ULAW;
- break;
- case HARMONY_MAGIC_8B_ALAW:
- harmony.data_format = HARMONY_DF_8BIT_ALAW;
- break;
- case HARMONY_MAGIC_16B_LINEAR:
- harmony.data_format = HARMONY_DF_16BIT_LINEAR;
- break;
- default:
- harmony_set_control(HARMONY_DF_16BIT_LINEAR,
- HARMONY_SR_44KHZ, HARMONY_SS_STEREO);
- goto out;
- }
- switch (nb_voices) {
- case HARMONY_MAGIC_MONO:
- harmony.stereo_select = HARMONY_SS_MONO;
- break;
- case HARMONY_MAGIC_STEREO:
- harmony.stereo_select = HARMONY_SS_STEREO;
- break;
- default:
- harmony.stereo_select = HARMONY_SS_MONO;
- break;
- }
- harmony_set_rate(harmony_detect_rate(&speed));
- harmony.dac_rate = speed;
- goto out;
- }
- }
- harmony_set_control(HARMONY_DF_8BIT_ULAW, HARMONY_SR_8KHZ, HARMONY_SS_MONO);
-out:
- return ret;
-}
-#undef four_bytes_to_u32
-
-
-static ssize_t harmony_audio_write(struct file *file,
- const char *buffer,
- size_t size_count,
- loff_t *ppos)
-{
- int total_count = (int) size_count;
- int count = 0;
- int frame_size;
- int buf_to_fill;
- int fresh_buffer;
-
- if (!harmony.format_initialized) {
- if (harmony_format_auto_detect(buffer, total_count))
- return -EFAULT;
- }
-
- while (count<total_count) {
- /* Wait until we're out of control mode */
- harmony_wait_CNTL();
-
- /* Figure out which buffer to fill in */
- if (harmony.nb_filled_play+2 >= MAX_BUFS && !harmony.play_offset) {
- harmony.blocked_playing = 1;
- interruptible_sleep_on(&harmony.wq_play);
- harmony.blocked_playing = 0;
- }
- if (harmony.nb_filled_play+2 >= MAX_BUFS && !harmony.play_offset)
- return -EBUSY;
-
-
- buf_to_fill = (harmony.first_filled_play+harmony.nb_filled_play);
- if (harmony.play_offset) {
- buf_to_fill--;
- buf_to_fill += MAX_BUFS;
- }
- buf_to_fill %= MAX_BUFS;
-
- fresh_buffer = (harmony.play_offset == 0);
-
- /* Figure out the size of the frame */
- if ((total_count-count) >= HARMONY_BUF_SIZE - harmony.play_offset) {
- frame_size = HARMONY_BUF_SIZE - harmony.play_offset;
- } else {
- frame_size = total_count - count;
- /* Clear out the buffer, since there we'll only be
- overlaying part of the old buffer with the new one */
- harmony_silence(&played_buf,
- HARMONY_BUF_SIZE*buf_to_fill+frame_size+harmony.play_offset,
- HARMONY_BUF_SIZE-frame_size-harmony.play_offset);
- }
-
- /* Copy the page to an aligned buffer */
- if (copy_from_user(played_buf.addr +(HARMONY_BUF_SIZE*buf_to_fill) + harmony.play_offset,
- buffer+count, frame_size))
- return -EFAULT;
- CHECK_WBACK_INV_OFFSET(played_buf, (HARMONY_BUF_SIZE*buf_to_fill + harmony.play_offset),
- frame_size);
-
- if (fresh_buffer)
- harmony.nb_filled_play++;
-
- count += frame_size;
- harmony.play_offset += frame_size;
- harmony.play_offset %= HARMONY_BUF_SIZE;
- if (harmony.suspended_playing && (harmony.nb_filled_play>=4))
- harmony_enable_interrupts();
- }
-
- return count;
-}
-
-static unsigned int harmony_audio_poll(struct file *file,
- struct poll_table_struct *wait)
-{
- unsigned int mask = 0;
-
- if (file->f_mode & FMODE_READ) {
- if (!harmony.suspended_recording)
- poll_wait(file, &harmony.wq_record, wait);
- if (harmony.nb_filled_record)
- mask |= POLLIN | POLLRDNORM;
- }
-
- if (file->f_mode & FMODE_WRITE) {
- if (!harmony.suspended_playing)
- poll_wait(file, &harmony.wq_play, wait);
- if (harmony.nb_filled_play)
- mask |= POLLOUT | POLLWRNORM;
- }
-
- return mask;
-}
-
-static int harmony_audio_ioctl(struct inode *inode,
- struct file *file,
- unsigned int cmd,
- unsigned long arg)
-{
- int ival, new_format;
- int frag_size, frag_buf;
- struct audio_buf_info info;
-
- switch (cmd) {
- case OSS_GETVERSION:
- return put_user(SOUND_VERSION, (int *) arg);
-
- case SNDCTL_DSP_GETCAPS:
- ival = DSP_CAP_DUPLEX;
- return put_user(ival, (int *) arg);
-
- case SNDCTL_DSP_GETFMTS:
- ival = (AFMT_S16_BE | AFMT_MU_LAW | AFMT_A_LAW );
- return put_user(ival, (int *) arg);
-
- case SNDCTL_DSP_SETFMT:
- if (get_user(ival, (int *) arg))
- return -EFAULT;
- if (ival != AFMT_QUERY) {
- switch (ival) {
- case AFMT_MU_LAW: new_format = HARMONY_DF_8BIT_ULAW; break;
- case AFMT_A_LAW: new_format = HARMONY_DF_8BIT_ALAW; break;
- case AFMT_S16_BE: new_format = HARMONY_DF_16BIT_LINEAR; break;
- default: {
- DPRINTK(KERN_WARNING PFX
- "unsupported sound format 0x%04x requested.\n",
- ival);
- ival = AFMT_S16_BE;
- return put_user(ival, (int *) arg);
- }
- }
- harmony_set_format(new_format);
- return 0;
- } else {
- switch (harmony.data_format) {
- case HARMONY_DF_8BIT_ULAW: ival = AFMT_MU_LAW; break;
- case HARMONY_DF_8BIT_ALAW: ival = AFMT_A_LAW; break;
- case HARMONY_DF_16BIT_LINEAR: ival = AFMT_U16_BE; break;
- default: ival = 0;
- }
- return put_user(ival, (int *) arg);
- }
-
- case SOUND_PCM_READ_RATE:
- ival = harmony.dac_rate;
- return put_user(ival, (int *) arg);
-
- case SNDCTL_DSP_SPEED:
- if (get_user(ival, (int *) arg))
- return -EFAULT;
- harmony_set_rate(harmony_detect_rate(&ival));
- harmony.dac_rate = ival;
- return put_user(ival, (int*) arg);
-
- case SNDCTL_DSP_STEREO:
- if (get_user(ival, (int *) arg))
- return -EFAULT;
- if (ival != 0 && ival != 1)
- return -EINVAL;
- harmony_set_stereo(ival);
- return 0;
-
- case SNDCTL_DSP_CHANNELS:
- if (get_user(ival, (int *) arg))
- return -EFAULT;
- if (ival != 1 && ival != 2) {
- ival = harmony.stereo_select == HARMONY_SS_MONO ? 1 : 2;
- return put_user(ival, (int *) arg);
- }
- harmony_set_stereo(ival-1);
- return 0;
-
- case SNDCTL_DSP_GETBLKSIZE:
- ival = HARMONY_BUF_SIZE;
- return put_user(ival, (int *) arg);
-
- case SNDCTL_DSP_NONBLOCK:
- file->f_flags |= O_NONBLOCK;
- return 0;
-
- case SNDCTL_DSP_RESET:
- if (!harmony.suspended_recording) {
- /* TODO: stop_recording() */
- }
- return 0;
-
- case SNDCTL_DSP_SETFRAGMENT:
- if (get_user(ival, (int *)arg))
- return -EFAULT;
- frag_size = ival & 0xffff;
- frag_buf = (ival>>16) & 0xffff;
- /* TODO: We use hardcoded fragment sizes and numbers for now */
- frag_size = 12; /* 4096 == 2^12 */
- frag_buf = MAX_BUFS;
- ival = (frag_buf << 16) + frag_size;
- return put_user(ival, (int *) arg);
-
- case SNDCTL_DSP_GETOSPACE:
- if (!(file->f_mode & FMODE_WRITE))
- return -EINVAL;
- info.fragstotal = MAX_BUFS;
- info.fragments = MAX_BUFS - harmony.nb_filled_play;
- info.fragsize = HARMONY_BUF_SIZE;
- info.bytes = info.fragments * info.fragsize;
- return copy_to_user((void *)arg, &info, sizeof(info)) ? -EFAULT : 0;
-
- case SNDCTL_DSP_GETISPACE:
- if (!(file->f_mode & FMODE_READ))
- return -EINVAL;
- info.fragstotal = MAX_BUFS;
- info.fragments = /*MAX_BUFS-*/ harmony.nb_filled_record;
- info.fragsize = HARMONY_BUF_SIZE;
- info.bytes = info.fragments * info.fragsize;
- return copy_to_user((void *)arg, &info, sizeof(info)) ? -EFAULT : 0;
-
- case SNDCTL_DSP_SYNC:
- return 0;
- }
-
- return -EINVAL;
-}
-
-
-/*
- * harmony_interrupt()
- *
- * harmony interruption service routine
- *
- */
-
-static irqreturn_t harmony_interrupt(int irq, void *dev, struct pt_regs *regs)
-{
- u32 dstatus;
- struct harmony_hpa *hpa;
-
- /* Setup the hpa */
- hpa = ((struct harmony_dev *)dev)->hpa;
- harmony_wait_CNTL();
-
- /* Read dstatus and pcuradd (the current address) */
- dstatus = gsc_readl(&hpa->dstatus);
-
- /* Turn off interrupts */
- harmony_disable_interrupts();
-
- /* Check if this is a request to get the next play buffer */
- if (dstatus & DSTATUS_PN) {
- if (!harmony.nb_filled_play) {
- harmony.suspended_playing = 1;
- gsc_writel((unsigned long)silent.dma_handle, &hpa->pnxtadd);
-
- if (!harmony.suspended_recording)
- harmony_enable_interrupts();
- } else {
- harmony.suspended_playing = 0;
- gsc_writel((unsigned long)played_buf.dma_handle +
- (HARMONY_BUF_SIZE*harmony.first_filled_play),
- &hpa->pnxtadd);
- harmony.first_filled_play++;
- harmony.first_filled_play %= MAX_BUFS;
- harmony.nb_filled_play--;
-
- harmony_enable_interrupts();
- }
-
- if (harmony.blocked_playing)
- wake_up_interruptible(&harmony.wq_play);
- }
-
- /* Check if we're being asked to fill in a recording buffer */
- if (dstatus & DSTATUS_RN) {
- if((harmony.nb_filled_record+2>=MAX_BUFS) || harmony.suspended_recording)
- {
- harmony.nb_filled_record = 0;
- harmony.first_filled_record = 0;
- harmony.suspended_recording = 1;
- gsc_writel((unsigned long)graveyard.dma_handle, &hpa->rnxtadd);
- if (!harmony.suspended_playing)
- harmony_enable_interrupts();
- } else {
- int buf_to_fill;
- buf_to_fill = (harmony.first_filled_record+harmony.nb_filled_record) % MAX_BUFS;
- CHECK_WBACK_INV_OFFSET(recorded_buf, HARMONY_BUF_SIZE*buf_to_fill, HARMONY_BUF_SIZE);
- gsc_writel((unsigned long)recorded_buf.dma_handle +
- HARMONY_BUF_SIZE*buf_to_fill,
- &hpa->rnxtadd);
- harmony.nb_filled_record++;
- harmony_enable_interrupts();
- }
-
- if (harmony.blocked_recording && harmony.nb_filled_record>3)
- wake_up_interruptible(&harmony.wq_record);
- }
- return IRQ_HANDLED;
-}
-
-/*
- * Sound playing functions
- */
-
-static struct file_operations harmony_audio_fops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .read = harmony_audio_read,
- .write = harmony_audio_write,
- .poll = harmony_audio_poll,
- .ioctl = harmony_audio_ioctl,
- .open = harmony_audio_open,
- .release = harmony_audio_release,
-};
-
-static int harmony_audio_init(void)
-{
- /* Request that IRQ */
- if (request_irq(harmony.dev->irq, harmony_interrupt, 0 ,"harmony", &harmony)) {
- printk(KERN_ERR PFX "Error requesting irq %d.\n", harmony.dev->irq);
- return -EFAULT;
- }
-
- harmony.dsp_unit = register_sound_dsp(&harmony_audio_fops, -1);
- if (harmony.dsp_unit < 0) {
- printk(KERN_ERR PFX "Error registering dsp\n");
- free_irq(harmony.dev->irq, &harmony);
- return -EFAULT;
- }
-
- /* Clear the buffers so you don't end up with crap in the buffers. */
- harmony_silence(&played_buf, 0, HARMONY_BUF_SIZE*MAX_BUFS);
-
- /* Make sure this makes it to cache */
- CHECK_WBACK_INV_OFFSET(played_buf, 0, HARMONY_BUF_SIZE*MAX_BUFS);
-
- /* Clear out the silent buffer and flush to cache */
- harmony_silence(&silent, 0, HARMONY_BUF_SIZE);
- CHECK_WBACK_INV_OFFSET(silent, 0, HARMONY_BUF_SIZE);
-
- harmony.audio_open = 0;
-
- return 0;
-}
-
-
-/*
- * mixer functions
- */
-
-static void harmony_mixer_set_gain(void)
-{
- harmony_wait_CNTL();
- gsc_writel(harmony.current_gain, &harmony.hpa->gainctl);
-}
-
-/*
- * Read gain of selected channel.
- * The OSS rate is from 0 (silent) to 100 -> need some conversions
- *
- * The harmony gain are attenuation for output and monitor gain.
- * is amplifaction for input gain
- */
-#define to_harmony_level(level,max) ((level)*max/100)
-#define to_oss_level(level,max) ((level)*100/max)
-
-static int harmony_mixer_get_level(int channel)
-{
- int left_level;
- int right_level;
-
- switch (channel) {
- case SOUND_MIXER_VOLUME:
- left_level = (harmony.current_gain & GAIN_LO_MASK) >> GAIN_LO_SHIFT;
- right_level = (harmony.current_gain & GAIN_RO_MASK) >> GAIN_RO_SHIFT;
- left_level = to_oss_level(MAX_OUTPUT_LEVEL - left_level, MAX_OUTPUT_LEVEL);
- right_level = to_oss_level(MAX_OUTPUT_LEVEL - right_level, MAX_OUTPUT_LEVEL);
- return (right_level << 8)+left_level;
-
- case SOUND_MIXER_IGAIN:
- left_level = (harmony.current_gain & GAIN_LI_MASK) >> GAIN_LI_SHIFT;
- right_level= (harmony.current_gain & GAIN_RI_MASK) >> GAIN_RI_SHIFT;
- left_level = to_oss_level(left_level, MAX_INPUT_LEVEL);
- right_level= to_oss_level(right_level, MAX_INPUT_LEVEL);
- return (right_level << 8)+left_level;
-
- case SOUND_MIXER_MONITOR:
- left_level = (harmony.current_gain & GAIN_MA_MASK) >> GAIN_MA_SHIFT;
- left_level = to_oss_level(MAX_MONITOR_LEVEL-left_level, MAX_MONITOR_LEVEL);
- return (left_level << 8)+left_level;
- }
- return -EINVAL;
-}
-
-
-
-/*
- * Some conversions for the same reasons.
- * We give back the new real value(s) due to
- * the rescale.
- */
-
-static int harmony_mixer_set_level(int channel, int value)
-{
- int left_level;
- int right_level;
- int new_left_level;
- int new_right_level;
-
- right_level = (value & 0x0000ff00) >> 8;
- left_level = value & 0x000000ff;
- if (right_level > 100) right_level = 100;
- if (left_level > 100) left_level = 100;
-
- switch (channel) {
- case SOUND_MIXER_VOLUME:
- right_level = to_harmony_level(100-right_level, MAX_OUTPUT_LEVEL);
- left_level = to_harmony_level(100-left_level, MAX_OUTPUT_LEVEL);
- new_right_level = to_oss_level(MAX_OUTPUT_LEVEL - right_level, MAX_OUTPUT_LEVEL);
- new_left_level = to_oss_level(MAX_OUTPUT_LEVEL - left_level, MAX_OUTPUT_LEVEL);
- harmony.current_gain = (harmony.current_gain & ~(GAIN_LO_MASK | GAIN_RO_MASK))
- | (left_level << GAIN_LO_SHIFT) | (right_level << GAIN_RO_SHIFT);
- harmony_mixer_set_gain();
- return (new_right_level << 8) + new_left_level;
-
- case SOUND_MIXER_IGAIN:
- right_level = to_harmony_level(right_level, MAX_INPUT_LEVEL);
- left_level = to_harmony_level(left_level, MAX_INPUT_LEVEL);
- new_right_level = to_oss_level(right_level, MAX_INPUT_LEVEL);
- new_left_level = to_oss_level(left_level, MAX_INPUT_LEVEL);
- harmony.current_gain = (harmony.current_gain & ~(GAIN_LI_MASK | GAIN_RI_MASK))
- | (left_level << GAIN_LI_SHIFT) | (right_level << GAIN_RI_SHIFT);
- harmony_mixer_set_gain();
- return (new_right_level << 8) + new_left_level;
-
- case SOUND_MIXER_MONITOR:
- left_level = to_harmony_level(100-left_level, MAX_MONITOR_LEVEL);
- new_left_level = to_oss_level(MAX_MONITOR_LEVEL-left_level, MAX_MONITOR_LEVEL);
- harmony.current_gain = (harmony.current_gain & ~GAIN_MA_MASK) | (left_level << GAIN_MA_SHIFT);
- harmony_mixer_set_gain();
- return (new_left_level << 8) + new_left_level;
- }
-
- return -EINVAL;
-}
-
-#undef to_harmony_level
-#undef to_oss_level
-
-/*
- * Return the selected input device (mic or line)
- */
-
-static int harmony_mixer_get_recmask(void)
-{
- int current_input_line;
-
- current_input_line = (harmony.current_gain & GAIN_IS_MASK)
- >> GAIN_IS_SHIFT;
- if (current_input_line)
- return SOUND_MASK_MIC;
-
- return SOUND_MASK_LINE;
-}
-
-/*
- * Set the input (only one at time, arbitrary priority to line in)
- */
-
-static int harmony_mixer_set_recmask(int recmask)
-{
- int new_input_line;
- int new_input_mask;
- int current_input_line;
-
- current_input_line = (harmony.current_gain & GAIN_IS_MASK)
- >> GAIN_IS_SHIFT;
- if ((current_input_line && ((recmask & SOUND_MASK_LINE) || !(recmask & SOUND_MASK_MIC))) ||
- (!current_input_line && ((recmask & SOUND_MASK_LINE) && !(recmask & SOUND_MASK_MIC)))) {
- new_input_line = 0;
- new_input_mask = SOUND_MASK_LINE;
- } else {
- new_input_line = 1;
- new_input_mask = SOUND_MASK_MIC;
- }
- harmony.current_gain = ((harmony.current_gain & ~GAIN_IS_MASK) |
- (new_input_line << GAIN_IS_SHIFT ));
- harmony_mixer_set_gain();
- return new_input_mask;
-}
-
-
-/*
- * give the active outlines
- */
-
-static int harmony_mixer_get_outmask(void)
-{
- int outmask = 0;
-
- if (harmony.current_gain & GAIN_SE_MASK) outmask |= MASK_INTERNAL;
- if (harmony.current_gain & GAIN_LE_MASK) outmask |= MASK_LINEOUT;
- if (harmony.current_gain & GAIN_HE_MASK) outmask |= MASK_HEADPHONES;
-
- return outmask;
-}
-
-
-static int harmony_mixer_set_outmask(int outmask)
-{
- if (outmask & MASK_INTERNAL)
- harmony.current_gain |= GAIN_SE_MASK;
- else
- harmony.current_gain &= ~GAIN_SE_MASK;
-
- if (outmask & MASK_LINEOUT)
- harmony.current_gain |= GAIN_LE_MASK;
- else
- harmony.current_gain &= ~GAIN_LE_MASK;
-
- if (outmask & MASK_HEADPHONES)
- harmony.current_gain |= GAIN_HE_MASK;
- else
- harmony.current_gain &= ~GAIN_HE_MASK;
-
- harmony_mixer_set_gain();
-
- return (outmask & (MASK_INTERNAL | MASK_LINEOUT | MASK_HEADPHONES));
-}
-
-/*
- * This code is inspired from sb_mixer.c
- */
-
-static int harmony_mixer_ioctl(struct inode * inode, struct file * file,
- unsigned int cmd, unsigned long arg)
-{
- int val;
- int ret;
-
- if (cmd == SOUND_MIXER_INFO) {
- mixer_info info;
- memset(&info, 0, sizeof(info));
- strncpy(info.id, "harmony", sizeof(info.id)-1);
- strncpy(info.name, "Harmony audio", sizeof(info.name)-1);
- info.modify_counter = 1; /* ? */
- if (copy_to_user((void *)arg, &info, sizeof(info)))
- return -EFAULT;
- return 0;
- }
-
- if (cmd == OSS_GETVERSION)
- return put_user(SOUND_VERSION, (int *)arg);
-
- /* read */
- val = 0;
- if (_SIOC_DIR(cmd) & _SIOC_WRITE)
- if (get_user(val, (int *)arg))
- return -EFAULT;
-
- switch (cmd) {
- case MIXER_READ(SOUND_MIXER_CAPS):
- ret = SOUND_CAP_EXCL_INPUT;
- break;
- case MIXER_READ(SOUND_MIXER_STEREODEVS):
- ret = SOUND_MASK_VOLUME | SOUND_MASK_IGAIN;
- break;
-
- case MIXER_READ(SOUND_MIXER_RECMASK):
- ret = SOUND_MASK_MIC | SOUND_MASK_LINE;
- break;
- case MIXER_READ(SOUND_MIXER_DEVMASK):
- ret = SOUND_MASK_VOLUME | SOUND_MASK_IGAIN |
- SOUND_MASK_MONITOR;
- break;
- case MIXER_READ(SOUND_MIXER_OUTMASK):
- ret = MASK_INTERNAL | MASK_LINEOUT |
- MASK_HEADPHONES;
- break;
-
- case MIXER_WRITE(SOUND_MIXER_RECSRC):
- ret = harmony_mixer_set_recmask(val);
- break;
- case MIXER_READ(SOUND_MIXER_RECSRC):
- ret = harmony_mixer_get_recmask();
- break;
-
- case MIXER_WRITE(SOUND_MIXER_OUTSRC):
- ret = harmony_mixer_set_outmask(val);
- break;
- case MIXER_READ(SOUND_MIXER_OUTSRC):
- ret = harmony_mixer_get_outmask();
- break;
-
- case MIXER_WRITE(SOUND_MIXER_VOLUME):
- case MIXER_WRITE(SOUND_MIXER_IGAIN):
- case MIXER_WRITE(SOUND_MIXER_MONITOR):
- ret = harmony_mixer_set_level(cmd & 0xff, val);
- break;
-
- case MIXER_READ(SOUND_MIXER_VOLUME):
- case MIXER_READ(SOUND_MIXER_IGAIN):
- case MIXER_READ(SOUND_MIXER_MONITOR):
- ret = harmony_mixer_get_level(cmd & 0xff);
- break;
-
- default:
- return -EINVAL;
- }
-
- if (put_user(ret, (int *)arg))
- return -EFAULT;
- return 0;
-}
-
-
-static int harmony_mixer_open(struct inode *inode, struct file *file)
-{
- if (harmony.mixer_open)
- return -EBUSY;
- harmony.mixer_open = 1;
- return 0;
-}
-
-static int harmony_mixer_release(struct inode *inode, struct file *file)
-{
- if (!harmony.mixer_open)
- return -EBUSY;
- harmony.mixer_open = 0;
- return 0;
-}
-
-static struct file_operations harmony_mixer_fops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .open = harmony_mixer_open,
- .release = harmony_mixer_release,
- .ioctl = harmony_mixer_ioctl,
-};
-
-
-/*
- * Mute all the output and reset Harmony.
- */
-
-static void __init harmony_mixer_reset(void)
-{
- harmony.current_gain = GAIN_TOTAL_SILENCE;
- harmony_mixer_set_gain();
- harmony_wait_CNTL();
- gsc_writel(1, &harmony.hpa->reset);
- mdelay(50); /* wait 50 ms */
- gsc_writel(0, &harmony.hpa->reset);
- harmony.current_gain = GAIN_DEFAULT;
- harmony_mixer_set_gain();
-}
-
-static int __init harmony_mixer_init(void)
-{
- /* Register the device file operations */
- harmony.mixer_unit = register_sound_mixer(&harmony_mixer_fops, -1);
- if (harmony.mixer_unit < 0) {
- printk(KERN_WARNING PFX "Error Registering Mixer Driver\n");
- return -EFAULT;
- }
-
- harmony_mixer_reset();
- harmony.mixer_open = 0;
-
- return 0;
-}
-
-
-
-/*
- * This is the callback that's called by the inventory hardware code
- * if it finds a match to the registered driver.
- */
-static int __devinit
-harmony_driver_probe(struct parisc_device *dev)
-{
- u8 id;
- u8 rev;
- u32 cntl;
- int ret;
-
- if (harmony.hpa) {
- /* We only support one Harmony at this time */
- printk(KERN_ERR PFX "driver already registered\n");
- return -EBUSY;
- }
-
- if (!dev->irq) {
- printk(KERN_ERR PFX "no irq found\n");
- return -ENODEV;
- }
-
- /* Set the HPA of harmony */
- harmony.hpa = (struct harmony_hpa *)dev->hpa.start;
- harmony.dev = dev;
-
- /* Grab the ID and revision from the device */
- id = gsc_readb(&harmony.hpa->id);
- if ((id | 1) != 0x15) {
- printk(KERN_WARNING PFX "wrong harmony id 0x%02x\n", id);
- return -EBUSY;
- }
- cntl = gsc_readl(&harmony.hpa->cntl);
- rev = (cntl>>20) & 0xff;
-
- printk(KERN_INFO "Lasi Harmony Audio driver " HARMONY_VERSION ", "
- "h/w id %i, rev. %i at 0x%lx, IRQ %i\n",
- id, rev, dev->hpa.start, harmony.dev->irq);
-
- /* Make sure the control bit isn't set, although I don't think it
- ever is. */
- if (cntl & CNTL_C) {
- printk(KERN_WARNING PFX "CNTL busy\n");
- harmony.hpa = 0;
- return -EBUSY;
- }
-
- /* Initialize the memory buffers */
- if (harmony_alloc_buffer(&played_buf, MAX_BUFS) ||
- harmony_alloc_buffer(&recorded_buf, MAX_BUFS) ||
- harmony_alloc_buffer(&graveyard, 1) ||
- harmony_alloc_buffer(&silent, 1)) {
- ret = -EBUSY;
- goto out_err;
- }
-
- /* Initialize /dev/mixer and /dev/audio */
- if ((ret=harmony_mixer_init()))
- goto out_err;
- if ((ret=harmony_audio_init()))
- goto out_err;
-
- return 0;
-
-out_err:
- harmony.hpa = 0;
- harmony_free_buffer(&played_buf);
- harmony_free_buffer(&recorded_buf);
- harmony_free_buffer(&graveyard);
- harmony_free_buffer(&silent);
- return ret;
-}
-
-
-static struct parisc_device_id harmony_tbl[] = {
- /* { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007A }, Bushmaster/Flounder */
- { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007B }, /* 712/715 Audio */
- { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007E }, /* Pace Audio */
- { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0007F }, /* Outfield / Coral II */
- { 0, }
-};
-
-MODULE_DEVICE_TABLE(parisc, harmony_tbl);
-
-static struct parisc_driver harmony_driver = {
- .name = "Lasi Harmony",
- .id_table = harmony_tbl,
- .probe = harmony_driver_probe,
-};
-
-static int __init init_harmony(void)
-{
- return register_parisc_driver(&harmony_driver);
-}
-
-static void __exit cleanup_harmony(void)
-{
- free_irq(harmony.dev->irq, &harmony);
- unregister_sound_mixer(harmony.mixer_unit);
- unregister_sound_dsp(harmony.dsp_unit);
- harmony_free_buffer(&played_buf);
- harmony_free_buffer(&recorded_buf);
- harmony_free_buffer(&graveyard);
- harmony_free_buffer(&silent);
- unregister_parisc_driver(&harmony_driver);
-}
-
-
-MODULE_AUTHOR("Alex DeVries <alex@onefishtwo.ca>");
-MODULE_DESCRIPTION("Harmony sound driver");
-MODULE_LICENSE("GPL");
-
-module_init(init_harmony);
-module_exit(cleanup_harmony);
-
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