diff options
author | Adrian Bunk <bunk@stusta.de> | 2006-10-04 02:17:22 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-10-04 07:55:32 -0700 |
commit | d56b9b9c464a10ab1ee51a4c6190a2b57b8ef7a6 (patch) | |
tree | a48388734053900a8379042757ee241d1e9dfc7b /sound/oss/gus_wave.c | |
parent | 595182bcdf64fbfd7ae22c67ea6081b7d387d246 (diff) |
[PATCH] The scheduled removal of some OSS drivers
This patch contains the scheduled removal of OSS drivers that:
- have ALSA drivers for the same hardware without known regressions and
- whose Kconfig options have been removed in 2.6.17.
[michal.k.k.piotrowski@gmail.com: build fix]
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Michal Piotrowski <michal.k.k.piotrowski@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'sound/oss/gus_wave.c')
-rw-r--r-- | sound/oss/gus_wave.c | 3464 |
1 files changed, 0 insertions, 3464 deletions
diff --git a/sound/oss/gus_wave.c b/sound/oss/gus_wave.c deleted file mode 100644 index 597db7aee63..00000000000 --- a/sound/oss/gus_wave.c +++ /dev/null @@ -1,3464 +0,0 @@ -/* - * sound/oss/gus_wave.c - * - * Driver for the Gravis UltraSound wave table synth. - * - * - * Copyright (C) by Hannu Savolainen 1993-1997 - * - * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL) - * Version 2 (June 1991). See the "COPYING" file distributed with this software - * for more info. - * - * - * Thomas Sailer : ioctl code reworked (vmalloc/vfree removed) - * Frank van de Pol : Fixed GUS MAX interrupt handling. Enabled simultanious - * usage of CS4231A codec, GUS wave and MIDI for GUS MAX. - * Bartlomiej Zolnierkiewicz : added some __init/__exit - */ - -#include <linux/init.h> -#include <linux/config.h> -#include <linux/spinlock.h> - -#define GUSPNP_AUTODETECT - -#include "sound_config.h" -#include <linux/ultrasound.h> - -#include "gus.h" -#include "gus_hw.h" - -#define GUS_BANK_SIZE (((iw_mode) ? 256*1024*1024 : 256*1024)) - -#define MAX_SAMPLE 150 -#define MAX_PATCH 256 - -#define NOT_SAMPLE 0xffff - -struct voice_info -{ - unsigned long orig_freq; - unsigned long current_freq; - unsigned long mode; - int fixed_pitch; - int bender; - int bender_range; - int panning; - int midi_volume; - unsigned int initial_volume; - unsigned int current_volume; - int loop_irq_mode, loop_irq_parm; -#define LMODE_FINISH 1 -#define LMODE_PCM 2 -#define LMODE_PCM_STOP 3 - int volume_irq_mode, volume_irq_parm; -#define VMODE_HALT 1 -#define VMODE_ENVELOPE 2 -#define VMODE_START_NOTE 3 - - int env_phase; - unsigned char env_rate[6]; - unsigned char env_offset[6]; - - /* - * Volume computation parameters for gus_adagio_vol() - */ - int main_vol, expression_vol, patch_vol; - - /* Variables for "Ultraclick" removal */ - int dev_pending, note_pending, volume_pending, - sample_pending; - char kill_pending; - long offset_pending; - -}; - -static struct voice_alloc_info *voice_alloc; -static struct address_info *gus_hw_config; -extern int gus_base; -extern int gus_irq, gus_dma; -extern int gus_pnp_flag; -extern int gus_no_wave_dma; -static int gus_dma2 = -1; -static int dual_dma_mode; -static long gus_mem_size; -static long free_mem_ptr; -static int gus_busy; -static int gus_no_dma; -static int nr_voices; -static int gus_devnum; -static int volume_base, volume_scale, volume_method; -static int gus_recmask = SOUND_MASK_MIC; -static int recording_active; -static int only_read_access; -static int only_8_bits; - -static int iw_mode = 0; -int gus_wave_volume = 60; -int gus_pcm_volume = 80; -int have_gus_max = 0; -static int gus_line_vol = 100, gus_mic_vol; -static unsigned char mix_image = 0x00; - -int gus_timer_enabled = 0; - -/* - * Current version of this driver doesn't allow synth and PCM functions - * at the same time. The active_device specifies the active driver - */ - -static int active_device; - -#define GUS_DEV_WAVE 1 /* Wave table synth */ -#define GUS_DEV_PCM_DONE 2 /* PCM device, transfer done */ -#define GUS_DEV_PCM_CONTINUE 3 /* PCM device, transfer done ch. 1/2 */ - -static int gus_audio_speed; -static int gus_audio_channels; -static int gus_audio_bits; -static int gus_audio_bsize; -static char bounce_buf[8 * 1024]; /* Must match value set to max_fragment */ - -static DECLARE_WAIT_QUEUE_HEAD(dram_sleeper); - -/* - * Variables and buffers for PCM output - */ - -#define MAX_PCM_BUFFERS (128*MAX_REALTIME_FACTOR) /* Don't change */ - -static int pcm_bsize, pcm_nblk, pcm_banksize; -static int pcm_datasize[MAX_PCM_BUFFERS]; -static volatile int pcm_head, pcm_tail, pcm_qlen; -static volatile int pcm_active; -static volatile int dma_active; -static int pcm_opened; -static int pcm_current_dev; -static int pcm_current_block; -static unsigned long pcm_current_buf; -static int pcm_current_count; -static int pcm_current_intrflag; -DEFINE_SPINLOCK(gus_lock); - -extern int *gus_osp; - -static struct voice_info voices[32]; - -static int freq_div_table[] = -{ - 44100, /* 14 */ - 41160, /* 15 */ - 38587, /* 16 */ - 36317, /* 17 */ - 34300, /* 18 */ - 32494, /* 19 */ - 30870, /* 20 */ - 29400, /* 21 */ - 28063, /* 22 */ - 26843, /* 23 */ - 25725, /* 24 */ - 24696, /* 25 */ - 23746, /* 26 */ - 22866, /* 27 */ - 22050, /* 28 */ - 21289, /* 29 */ - 20580, /* 30 */ - 19916, /* 31 */ - 19293 /* 32 */ -}; - -static struct patch_info *samples; -static long sample_ptrs[MAX_SAMPLE + 1]; -static int sample_map[32]; -static int free_sample; -static int mixer_type; - - -static int patch_table[MAX_PATCH]; -static int patch_map[32]; - -static struct synth_info gus_info = { - "Gravis UltraSound", 0, SYNTH_TYPE_SAMPLE, SAMPLE_TYPE_GUS, - 0, 16, 0, MAX_PATCH -}; - -static void gus_poke(long addr, unsigned char data); -static void compute_and_set_volume(int voice, int volume, int ramp_time); -extern unsigned short gus_adagio_vol(int vel, int mainv, int xpn, int voicev); -extern unsigned short gus_linear_vol(int vol, int mainvol); -static void compute_volume(int voice, int volume); -static void do_volume_irq(int voice); -static void set_input_volumes(void); -static void gus_tmr_install(int io_base); - -#define INSTANT_RAMP -1 /* Instant change. No ramping */ -#define FAST_RAMP 0 /* Fastest possible ramp */ - -static void reset_sample_memory(void) -{ - int i; - - for (i = 0; i <= MAX_SAMPLE; i++) - sample_ptrs[i] = -1; - for (i = 0; i < 32; i++) - sample_map[i] = -1; - for (i = 0; i < 32; i++) - patch_map[i] = -1; - - gus_poke(0, 0); /* Put a silent sample to the beginning */ - gus_poke(1, 0); - free_mem_ptr = 2; - - free_sample = 0; - - for (i = 0; i < MAX_PATCH; i++) - patch_table[i] = NOT_SAMPLE; -} - -void gus_delay(void) -{ - int i; - - for (i = 0; i < 7; i++) - inb(u_DRAMIO); -} - -static void gus_poke(long addr, unsigned char data) -{ /* Writes a byte to the DRAM */ - outb((0x43), u_Command); - outb((addr & 0xff), u_DataLo); - outb(((addr >> 8) & 0xff), u_DataHi); - - outb((0x44), u_Command); - outb(((addr >> 16) & 0xff), u_DataHi); - outb((data), u_DRAMIO); -} - -static unsigned char gus_peek(long addr) -{ /* Reads a byte from the DRAM */ - unsigned char tmp; - - outb((0x43), u_Command); - outb((addr & 0xff), u_DataLo); - outb(((addr >> 8) & 0xff), u_DataHi); - - outb((0x44), u_Command); - outb(((addr >> 16) & 0xff), u_DataHi); - tmp = inb(u_DRAMIO); - - return tmp; -} - -void gus_write8(int reg, unsigned int data) -{ /* Writes to an indirect register (8 bit) */ - outb((reg), u_Command); - outb(((unsigned char) (data & 0xff)), u_DataHi); -} - -static unsigned char gus_read8(int reg) -{ - /* Reads from an indirect register (8 bit). Offset 0x80. */ - unsigned char val; - - outb((reg | 0x80), u_Command); - val = inb(u_DataHi); - - return val; -} - -static unsigned char gus_look8(int reg) -{ - /* Reads from an indirect register (8 bit). No additional offset. */ - unsigned char val; - - outb((reg), u_Command); - val = inb(u_DataHi); - - return val; -} - -static void gus_write16(int reg, unsigned int data) -{ - /* Writes to an indirect register (16 bit) */ - outb((reg), u_Command); - - outb(((unsigned char) (data & 0xff)), u_DataLo); - outb(((unsigned char) ((data >> 8) & 0xff)), u_DataHi); -} - -static unsigned short gus_read16(int reg) -{ - /* Reads from an indirect register (16 bit). Offset 0x80. */ - unsigned char hi, lo; - - outb((reg | 0x80), u_Command); - - lo = inb(u_DataLo); - hi = inb(u_DataHi); - - return ((hi << 8) & 0xff00) | lo; -} - -static unsigned short gus_look16(int reg) -{ - /* Reads from an indirect register (16 bit). No additional offset. */ - unsigned char hi, lo; - - outb((reg), u_Command); - - lo = inb(u_DataLo); - hi = inb(u_DataHi); - - return ((hi << 8) & 0xff00) | lo; -} - -static void gus_write_addr(int reg, unsigned long address, int frac, int is16bit) -{ - /* Writes an 24 bit memory address */ - unsigned long hold_address; - - if (is16bit) - { - if (iw_mode) - { - /* Interwave spesific address translations */ - address >>= 1; - } - else - { - /* - * Special processing required for 16 bit patches - */ - - hold_address = address; - address = address >> 1; - address &= 0x0001ffffL; - address |= (hold_address & 0x000c0000L); - } - } - gus_write16(reg, (unsigned short) ((address >> 7) & 0xffff)); - gus_write16(reg + 1, (unsigned short) ((address << 9) & 0xffff) - + (frac << 5)); - /* Could writing twice fix problems with GUS_VOICE_POS()? Let's try. */ - gus_delay(); - gus_write16(reg, (unsigned short) ((address >> 7) & 0xffff)); - gus_write16(reg + 1, (unsigned short) ((address << 9) & 0xffff) - + (frac << 5)); -} - -static void gus_select_voice(int voice) -{ - if (voice < 0 || voice > 31) - return; - outb((voice), u_Voice); -} - -static void gus_select_max_voices(int nvoices) -{ - if (iw_mode) - nvoices = 32; - if (nvoices < 14) - nvoices = 14; - if (nvoices > 32) - nvoices = 32; - - voice_alloc->max_voice = nr_voices = nvoices; - gus_write8(0x0e, (nvoices - 1) | 0xc0); -} - -static void gus_voice_on(unsigned int mode) -{ - gus_write8(0x00, (unsigned char) (mode & 0xfc)); - gus_delay(); - gus_write8(0x00, (unsigned char) (mode & 0xfc)); -} - -static void gus_voice_off(void) -{ - gus_write8(0x00, gus_read8(0x00) | 0x03); -} - -static void gus_voice_mode(unsigned int m) -{ - unsigned char mode = (unsigned char) (m & 0xff); - - gus_write8(0x00, (gus_read8(0x00) & 0x03) | - (mode & 0xfc)); /* Don't touch last two bits */ - gus_delay(); - gus_write8(0x00, (gus_read8(0x00) & 0x03) | (mode & 0xfc)); -} - -static void gus_voice_freq(unsigned long freq) -{ - unsigned long divisor = freq_div_table[nr_voices - 14]; - unsigned short fc; - - /* Interwave plays at 44100 Hz with any number of voices */ - if (iw_mode) - fc = (unsigned short) (((freq << 9) + (44100 >> 1)) / 44100); - else - fc = (unsigned short) (((freq << 9) + (divisor >> 1)) / divisor); - fc = fc << 1; - - gus_write16(0x01, fc); -} - -static void gus_voice_volume(unsigned int vol) -{ - gus_write8(0x0d, 0x03); /* Stop ramp before setting volume */ - gus_write16(0x09, (unsigned short) (vol << 4)); -} - -static void gus_voice_balance(unsigned int balance) -{ - gus_write8(0x0c, (unsigned char) (balance & 0xff)); -} - -static void gus_ramp_range(unsigned int low, unsigned int high) -{ - gus_write8(0x07, (unsigned char) ((low >> 4) & 0xff)); - gus_write8(0x08, (unsigned char) ((high >> 4) & 0xff)); -} - -static void gus_ramp_rate(unsigned int scale, unsigned int rate) -{ - gus_write8(0x06, (unsigned char) (((scale & 0x03) << 6) | (rate & 0x3f))); -} - -static void gus_rampon(unsigned int m) -{ - unsigned char mode = (unsigned char) (m & 0xff); - - gus_write8(0x0d, mode & 0xfc); - gus_delay(); - gus_write8(0x0d, mode & 0xfc); -} - -static void gus_ramp_mode(unsigned int m) -{ - unsigned char mode = (unsigned char) (m & 0xff); - - gus_write8(0x0d, (gus_read8(0x0d) & 0x03) | - (mode & 0xfc)); /* Leave the last 2 bits alone */ - gus_delay(); - gus_write8(0x0d, (gus_read8(0x0d) & 0x03) | (mode & 0xfc)); -} - -static void gus_rampoff(void) -{ - gus_write8(0x0d, 0x03); -} - -static void gus_set_voice_pos(int voice, long position) -{ - int sample_no; - - if ((sample_no = sample_map[voice]) != -1) { - if (position < samples[sample_no].len) { - if (voices[voice].volume_irq_mode == VMODE_START_NOTE) - voices[voice].offset_pending = position; - else - gus_write_addr(0x0a, sample_ptrs[sample_no] + position, 0, - samples[sample_no].mode & WAVE_16_BITS); - } - } -} - -static void gus_voice_init(int voice) -{ - unsigned long flags; - - spin_lock_irqsave(&gus_lock,flags); - gus_select_voice(voice); - gus_voice_volume(0); - gus_voice_off(); - gus_write_addr(0x0a, 0, 0, 0); /* Set current position to 0 */ - gus_write8(0x00, 0x03); /* Voice off */ - gus_write8(0x0d, 0x03); /* Ramping off */ - voice_alloc->map[voice] = 0; - voice_alloc->alloc_times[voice] = 0; - spin_unlock_irqrestore(&gus_lock,flags); - -} - -static void gus_voice_init2(int voice) -{ - voices[voice].panning = 0; - voices[voice].mode = 0; - voices[voice].orig_freq = 20000; - voices[voice].current_freq = 20000; - voices[voice].bender = 0; - voices[voice].bender_range = 200; - voices[voice].initial_volume = 0; - voices[voice].current_volume = 0; - voices[voice].loop_irq_mode = 0; - voices[voice].loop_irq_parm = 0; - voices[voice].volume_irq_mode = 0; - voices[voice].volume_irq_parm = 0; - voices[voice].env_phase = 0; - voices[voice].main_vol = 127; - voices[voice].patch_vol = 127; - voices[voice].expression_vol = 127; - voices[voice].sample_pending = -1; - voices[voice].fixed_pitch = 0; -} - -static void step_envelope(int voice) -{ - unsigned vol, prev_vol, phase; - unsigned char rate; - unsigned long flags; - - if (voices[voice].mode & WAVE_SUSTAIN_ON && voices[voice].env_phase == 2) - { - spin_lock_irqsave(&gus_lock,flags); - gus_select_voice(voice); - gus_rampoff(); - spin_unlock_irqrestore(&gus_lock,flags); - return; - /* - * Sustain phase begins. Continue envelope after receiving note off. - */ - } - if (voices[voice].env_phase >= 5) - { - /* Envelope finished. Shoot the voice down */ - gus_voice_init(voice); - return; - } - prev_vol = voices[voice].current_volume; - phase = ++voices[voice].env_phase; - compute_volume(voice, voices[voice].midi_volume); - vol = voices[voice].initial_volume * voices[voice].env_offset[phase] / 255; - rate = voices[voice].env_rate[phase]; - - spin_lock_irqsave(&gus_lock,flags); - gus_select_voice(voice); - - gus_voice_volume(prev_vol); - - - gus_write8(0x06, rate); /* Ramping rate */ - - voices[voice].volume_irq_mode = VMODE_ENVELOPE; - - if (((vol - prev_vol) / 64) == 0) /* No significant volume change */ - { - spin_unlock_irqrestore(&gus_lock,flags); - step_envelope(voice); /* Continue the envelope on the next step */ - return; - } - if (vol > prev_vol) - { - if (vol >= (4096 - 64)) - vol = 4096 - 65; - gus_ramp_range(0, vol); - gus_rampon(0x20); /* Increasing volume, with IRQ */ - } - else - { - if (vol <= 64) - vol = 65; - gus_ramp_range(vol, 4030); - gus_rampon(0x60); /* Decreasing volume, with IRQ */ - } - voices[voice].current_volume = vol; - spin_unlock_irqrestore(&gus_lock,flags); -} - -static void init_envelope(int voice) -{ - voices[voice].env_phase = -1; - voices[voice].current_volume = 64; - - step_envelope(voice); -} - -static void start_release(int voice) -{ - if (gus_read8(0x00) & 0x03) - return; /* Voice already stopped */ - - voices[voice].env_phase = 2; /* Will be incremented by step_envelope */ - - voices[voice].current_volume = voices[voice].initial_volume = - gus_read16(0x09) >> 4; /* Get current volume */ - - voices[voice].mode &= ~WAVE_SUSTAIN_ON; - gus_rampoff(); - step_envelope(voice); -} - -static void gus_voice_fade(int voice) -{ - int instr_no = sample_map[voice], is16bits; - unsigned long flags; - - spin_lock_irqsave(&gus_lock,flags); - gus_select_voice(voice); - - if (instr_no < 0 || instr_no > MAX_SAMPLE) - { - gus_write8(0x00, 0x03); /* Hard stop */ - voice_alloc->map[voice] = 0; - spin_unlock_irqrestore(&gus_lock,flags); - return; - } - is16bits = (samples[instr_no].mode & WAVE_16_BITS) ? 1 : 0; /* 8 or 16 bits */ - - if (voices[voice].mode & WAVE_ENVELOPES) - { - start_release(voice); - spin_unlock_irqrestore(&gus_lock,flags); - return; - } - /* - * Ramp the volume down but not too quickly. - */ - if ((int) (gus_read16(0x09) >> 4) < 100) /* Get current volume */ - { - gus_voice_off(); - gus_rampoff(); - gus_voice_init(voice); - spin_unlock_irqrestore(&gus_lock,flags); - return; - } - gus_ramp_range(65, 4030); - gus_ramp_rate(2, 4); - gus_rampon(0x40 | 0x20); /* Down, once, with IRQ */ - voices[voice].volume_irq_mode = VMODE_HALT; - spin_unlock_irqrestore(&gus_lock,flags); -} - -static void gus_reset(void) -{ - int i; - - gus_select_max_voices(24); - volume_base = 3071; - volume_scale = 4; - volume_method = VOL_METHOD_ADAGIO; - - for (i = 0; i < 32; i++) - { - gus_voice_init(i); /* Turn voice off */ - gus_voice_init2(i); - } -} - -static void gus_initialize(void) -{ - unsigned long flags; - unsigned char dma_image, irq_image, tmp; - - static unsigned char gus_irq_map[16] = { - 0, 0, 0, 3, 0, 2, 0, 4, 0, 1, 0, 5, 6, 0, 0, 7 - }; - - static unsigned char gus_dma_map[8] = { - 0, 1, 0, 2, 0, 3, 4, 5 - }; - - spin_lock_irqsave(&gus_lock,flags); - gus_write8(0x4c, 0); /* Reset GF1 */ - gus_delay(); - gus_delay(); - - gus_write8(0x4c, 1); /* Release Reset */ - gus_delay(); - gus_delay(); - - /* - * Clear all interrupts - */ - - gus_write8(0x41, 0); /* DMA control */ - gus_write8(0x45, 0); /* Timer control */ - gus_write8(0x49, 0); /* Sample control */ - - gus_select_max_voices(24); - - inb(u_Status); /* Touch the status register */ - - gus_look8(0x41); /* Clear any pending DMA IRQs */ - gus_look8(0x49); /* Clear any pending sample IRQs */ - gus_read8(0x0f); /* Clear pending IRQs */ - - gus_reset(); /* Resets all voices */ - - gus_look8(0x41); /* Clear any pending DMA IRQs */ - gus_look8(0x49); /* Clear any pending sample IRQs */ - gus_read8(0x0f); /* Clear pending IRQs */ - - gus_write8(0x4c, 7); /* Master reset | DAC enable | IRQ enable */ - - /* - * Set up for Digital ASIC - */ - - outb((0x05), gus_base + 0x0f); - - mix_image |= 0x02; /* Disable line out (for a moment) */ - outb((mix_image), u_Mixer); - - outb((0x00), u_IRQDMAControl); - - outb((0x00), gus_base + 0x0f); - - /* - * Now set up the DMA and IRQ interface - * - * The GUS supports two IRQs and two DMAs. - * - * Just one DMA channel is used. This prevents simultaneous ADC and DAC. - * Adding this support requires significant changes to the dmabuf.c, dsp.c - * and audio.c also. - */ - - irq_image = 0; - tmp = gus_irq_map[gus_irq]; - if (!gus_pnp_flag && !tmp) - printk(KERN_WARNING "Warning! GUS IRQ not selected\n"); - irq_image |= tmp; - irq_image |= 0x40; /* Combine IRQ1 (GF1) and IRQ2 (Midi) */ - - dual_dma_mode = 1; - if (gus_dma2 == gus_dma || gus_dma2 == -1) - { - dual_dma_mode = 0; - dma_image = 0x40; /* Combine DMA1 (DRAM) and IRQ2 (ADC) */ - - tmp = gus_dma_map[gus_dma]; - if (!tmp) - printk(KERN_WARNING "Warning! GUS DMA not selected\n"); - - dma_image |= tmp; - } - else - { - /* Setup dual DMA channel mode for GUS MAX */ - - dma_image = gus_dma_map[gus_dma]; - if (!dma_image) - printk(KERN_WARNING "Warning! GUS DMA not selected\n"); - - tmp = gus_dma_map[gus_dma2] << 3; - if (!tmp) - { - printk(KERN_WARNING "Warning! Invalid GUS MAX DMA\n"); - tmp = 0x40; /* Combine DMA channels */ - dual_dma_mode = 0; - } - dma_image |= tmp; - } - - /* - * For some reason the IRQ and DMA addresses must be written twice - */ - - /* - * Doing it first time - */ - - outb((mix_image), u_Mixer); /* Select DMA control */ - outb((dma_image | 0x80), u_IRQDMAControl); /* Set DMA address */ - - outb((mix_image | 0x40), u_Mixer); /* Select IRQ control */ - outb((irq_image), u_IRQDMAControl); /* Set IRQ address */ - - /* - * Doing it second time - */ - - outb((mix_image), u_Mixer); /* Select DMA control */ - outb((dma_image), u_IRQDMAControl); /* Set DMA address */ - - outb((mix_image | 0x40), u_Mixer); /* Select IRQ control */ - outb((irq_image), u_IRQDMAControl); /* Set IRQ address */ - - gus_select_voice(0); /* This disables writes to IRQ/DMA reg */ - - mix_image &= ~0x02; /* Enable line out */ - mix_image |= 0x08; /* Enable IRQ */ - outb((mix_image), u_Mixer); /* - * Turn mixer channels on - * Note! Mic in is left off. - */ - - gus_select_voice(0); /* This disables writes to IRQ/DMA reg */ - - gusintr(gus_irq, (void *)gus_hw_config, NULL); /* Serve pending interrupts */ - - inb(u_Status); /* Touch the status register */ - - gus_look8(0x41); /* Clear any pending DMA IRQs */ - gus_look8(0x49); /* Clear any pending sample IRQs */ - - gus_read8(0x0f); /* Clear pending IRQs */ - - if (iw_mode) - gus_write8(0x19, gus_read8(0x19) | 0x01); - spin_unlock_irqrestore(&gus_lock,flags); -} - - -static void __init pnp_mem_init(void) -{ -#include "iwmem.h" -#define CHUNK_SIZE (256*1024) -#define BANK_SIZE (4*1024*1024) -#define CHUNKS_PER_BANK (BANK_SIZE/CHUNK_SIZE) - - int bank, chunk, addr, total = 0; - int bank_sizes[4]; - int i, j, bits = -1, testbits = -1, nbanks = 0; - - /* - * This routine determines what kind of RAM is installed in each of the four - * SIMM banks and configures the DRAM address decode logic accordingly. - */ - - /* - * Place the chip into enhanced mode - */ - gus_write8(0x19, gus_read8(0x19) | 0x01); - gus_write8(0x53, gus_look8(0x53) & ~0x02); /* Select DRAM I/O access */ - - /* - * Set memory configuration to 4 DRAM banks of 4M in each (16M total). - */ - - gus_write16(0x52, (gus_look16(0x52) & 0xfff0) | 0x000c); - - /* - * Perform the DRAM size detection for each bank individually. - */ - for (bank = 0; bank < 4; bank++) - { - int size = 0; - - addr = bank * BANK_SIZE; - - /* Clean check points of each chunk */ - for (chunk = 0; chunk < CHUNKS_PER_BANK; chunk++) - { - gus_poke(addr + chunk * CHUNK_SIZE + 0L, 0x00); - gus_poke(addr + chunk * CHUNK_SIZE + 1L, 0x00); - } - - /* Write a value to each chunk point and verify the result */ - for (chunk = 0; chunk < CHUNKS_PER_BANK; chunk++) - { - gus_poke(addr + chunk * CHUNK_SIZE + 0L, 0x55); - gus_poke(addr + chunk * CHUNK_SIZE + 1L, 0xAA); - - if (gus_peek(addr + chunk * CHUNK_SIZE + 0L) == 0x55 && - gus_peek(addr + chunk * CHUNK_SIZE + 1L) == 0xAA) - { - /* OK. There is RAM. Now check for possible shadows */ - int ok = 1, chunk2; - - for (chunk2 = 0; ok && chunk2 < chunk; chunk2++) - if (gus_peek(addr + chunk2 * CHUNK_SIZE + 0L) || - gus_peek(addr + chunk2 * CHUNK_SIZE + 1L)) - ok = 0; /* Addressing wraps */ - - if (ok) - size = (chunk + 1) * CHUNK_SIZE; - } - gus_poke(addr + chunk * CHUNK_SIZE + 0L, 0x00); - gus_poke(addr + chunk * CHUNK_SIZE + 1L, 0x00); - } - bank_sizes[bank] = size; - if (size) - nbanks = bank + 1; - DDB(printk("Interwave: Bank %d, size=%dk\n", bank, size / 1024)); - } - - if (nbanks == 0) /* No RAM - Give up */ - { - printk(KERN_ERR "Sound: An Interwave audio chip detected but no DRAM\n"); - printk(KERN_ERR "Sound: Unable to work with this card.\n"); - gus_write8(0x19, gus_read8(0x19) & ~0x01); - gus_mem_size = 0; - return; - } - - /* - * Now we know how much DRAM there is in each bank. The next step is - * to find a DRAM size encoding (0 to 12) which is best for the combination - * we have. - * - * First try if any of the possible alternatives matches exactly the amount - * of memory we have. - */ - - for (i = 0; bits == -1 && i < 13; i++) - { - bits = i; - - for (j = 0; bits != -1 && j < 4; j++) - if (mem_decode[i][j] != bank_sizes[j]) - bits = -1; /* No hit */ - } - - /* - * If necessary, try to find a combination where other than the last - * bank matches our configuration and the last bank is left oversized. - * In this way we don't leave holes in the middle of memory. - */ - - if (bits == -1) /* No luck yet */ - { - for (i = 0; bits == -1 && i < 13; i++) - { - bits = i; - - for (j = 0; bits != -1 && j < nbanks - 1; j++) - if (mem_decode[i][j] != bank_sizes[j]) - bits = -1; /* No hit */ - if (mem_decode[i][nbanks - 1] < bank_sizes[nbanks - 1]) - bits = -1; /* The last bank is too small */ - } - } - /* - * The last resort is to search for a combination where the banks are - * smaller than the actual SIMMs. This leaves some memory in the banks - * unused but doesn't leave holes in the DRAM address space. - */ - if (bits == -1) /* No luck yet */ - { - for (i = 0; i < 13; i++) - { - testbits = i; - for (j = 0; testbits != -1 && j < nbanks - 1; j++) - if (mem_decode[i][j] > bank_sizes[j]) { - testbits = -1; - } - if(testbits > bits) bits = testbits; - } - if (bits != -1) - { - printk(KERN_INFO "Interwave: Can't use all installed RAM.\n"); - printk(KERN_INFO "Interwave: Try reordering SIMMS.\n"); - } - printk(KERN_INFO "Interwave: Can't find working DRAM encoding.\n"); - printk(KERN_INFO "Interwave: Defaulting to 256k. Try reordering SIMMS.\n"); - bits = 0; - } - DDB(printk("Interwave: Selecting DRAM addressing mode %d\n", bits)); - - for (bank = 0; bank < 4; bank++) - { - DDB(printk(" Bank %d, mem=%dk (limit %dk)\n", bank, bank_sizes[bank] / 1024, mem_decode[bits][bank] / 1024)); - - if (bank_sizes[bank] > mem_decode[bits][bank]) - total += mem_decode[bits][bank]; - else - total += bank_sizes[bank]; - } - - DDB(printk("Total %dk of DRAM (enhanced mode)\n", total / 1024)); - - /* - * Set the memory addressing mode. - */ - gus_write16(0x52, (gus_look16(0x52) & 0xfff0) | bits); - -/* Leave the chip into enhanced mode. Disable LFO */ - gus_mem_size = total; - iw_mode = 1; - gus_write8(0x19, (gus_read8(0x19) | 0x01) & ~0x02); -} - -int __init gus_wave_detect(int baseaddr) -{ - unsigned long i, max_mem = 1024L; - unsigned long loc; - unsigned char val; - - if (!request_region(baseaddr, 16, "GUS")) - return 0; - if (!request_region(baseaddr + 0x100, 12, "GUS")) { /* 0x10c-> is MAX */ - release_region(baseaddr, 16); - return 0; - } - - gus_base = baseaddr; - - gus_write8(0x4c, 0); /* Reset GF1 */ - gus_delay(); - gus_delay(); - - gus_write8(0x4c, 1); /* Release Reset */ - gus_delay(); - gus_delay(); - -#ifdef GUSPNP_AUTODETECT - val = gus_look8(0x5b); /* Version number register */ - gus_write8(0x5b, ~val); /* Invert all bits */ - - if ((gus_look8(0x5b) & 0xf0) == (val & 0xf0)) /* No change */ - { - if ((gus_look8(0x5b) & 0x0f) == ((~val) & 0x0f)) /* Change */ - { - DDB(printk("Interwave chip version %d detected\n", (val & 0xf0) >> 4)); - gus_pnp_flag = 1; - } - else - { - DDB(printk("Not an Interwave chip (%x)\n", gus_look8(0x5b))); - gus_pnp_flag = 0; - } - } - gus_write8(0x5b, val); /* Restore all bits */ -#endif - - if (gus_pnp_flag) - pnp_mem_init(); - if (iw_mode) - return 1; - - /* See if there is first block there.... */ - gus_poke(0L, 0xaa); - if (gus_peek(0L) != 0xaa) { - release_region(baseaddr + 0x100, 12); - release_region(baseaddr, 16); - return 0; - } - - /* Now zero it out so that I can check for mirroring .. */ - gus_poke(0L, 0x00); - for (i = 1L; i < max_mem; i++) - { - int n, failed; - - /* check for mirroring ... */ - if (gus_peek(0L) != 0) - break; - loc = i << 10; - - for (n = loc - 1, failed = 0; n <= loc; n++) - { - gus_poke(loc, 0xaa); - if (gus_peek(loc) != 0xaa) - failed = 1; - gus_poke(loc, 0x55); - if (gus_peek(loc) != 0x55) - failed = 1; - } - if (failed) - break; - } - gus_mem_size = i << 10; - return 1; -} - -static int guswave_ioctl(int dev, unsigned int cmd, void __user *arg) -{ - - switch (cmd) - { - case SNDCTL_SYNTH_INFO: - gus_info.nr_voices = nr_voices; - if (copy_to_user(arg, &gus_info, sizeof(gus_info))) - return -EFAULT; - return 0; - - case SNDCTL_SEQ_RESETSAMPLES: - reset_sample_memory(); - return 0; - - case SNDCTL_SEQ_PERCMODE: - return 0; - - case SNDCTL_SYNTH_MEMAVL: - return (gus_mem_size == 0) ? 0 : gus_mem_size - free_mem_ptr - 32; - - default: - return -EINVAL; - } -} - -static int guswave_set_instr(int dev, int voice, int instr_no) -{ - int sample_no; - - if (instr_no < 0 || instr_no > MAX_PATCH) - instr_no = 0; /* Default to acoustic piano */ - - if (voice < 0 || voice > 31) - return -EINVAL; - - if (voices[voice].volume_irq_mode == VMODE_START_NOTE) - { - voices[voice].sample_pending = instr_no; - return 0; - } - sample_no = patch_table[instr_no]; - patch_map[voice] = -1; - - if (sample_no == NOT_SAMPLE) - { -/* printk("GUS: Undefined patch %d for voice %d\n", instr_no, voice);*/ - return -EINVAL; /* Patch not defined */ - } - if (sample_ptrs[sample_no] == -1) /* Sample not loaded */ - { -/* printk("GUS: Sample #%d not loaded for patch %d (voice %d)\n", sample_no, instr_no, voice);*/ - return -EINVAL; - } - sample_map[voice] = sample_no; - patch_map[voice] = instr_no; - return 0; -} - -static int guswave_kill_note(int dev, int voice, int note, int velocity) -{ - unsigned long flags; - - spin_lock_irqsave(&gus_lock,flags); - /* voice_alloc->map[voice] = 0xffff; */ - if (voices[voice].volume_irq_mode == VMODE_START_NOTE) - { - voices[voice].kill_pending = 1; - spin_unlock_irqrestore(&gus_lock,flags); - } - else - { - spin_unlock_irqrestore(&gus_lock,flags); - gus_voice_fade(voice); - } - - return 0; -} - -static void guswave_aftertouch(int dev, int voice, int pressure) -{ -} - -static void guswave_panning(int dev, int voice, int value) -{ - if (voice >= 0 || voice < 32) - voices[voice].panning = value; -} - -static void guswave_volume_method(int dev, int mode) -{ - if (mode == VOL_METHOD_LINEAR || mode == VOL_METHOD_ADAGIO) - volume_method = mode; -} - -static void compute_volume(int voice, int volume) -{ - if (volume < 128) - voices[voice].midi_volume = volume; - - switch (volume_method) - { - case VOL_METHOD_ADAGIO: - voices[voice].initial_volume = - gus_adagio_vol(voices[voice].midi_volume, voices[voice].main_vol, - voices[voice].expression_vol, - voices[voice].patch_vol); - break; - - case VOL_METHOD_LINEAR: /* Totally ignores patch-volume and expression */ - voices[voice].initial_volume = gus_linear_vol(volume, voices[voice].main_vol); - break; - - default: - voices[voice].initial_volume = volume_base + - (voices[voice].midi_volume * volume_scale); - } - - if (voices[voice].initial_volume > 4030) - voices[voice].initial_volume = 4030; -} - -static void compute_and_set_volume(int voice, int volume, int ramp_time) -{ - int curr, target, rate; - unsigned long flags; - - compute_volume(voice, volume); - voices[voice].current_volume = voices[voice].initial_volume; - - spin_lock_irqsave(&gus_lock,flags); - /* - * CAUTION! Interrupts disabled. Enable them before returning - */ - - gus_select_voice(voice); - - curr = gus_read16(0x09) >> 4; - target = voices[voice].initial_volume; - - if (ramp_time == INSTANT_RAMP) - { - gus_rampoff(); - gus_voice_volume(target); - spin_unlock_irqrestore(&gus_lock,flags); - return; - } - if (ramp_time == FAST_RAMP) - rate = 63; - else - rate = 16; - gus_ramp_rate(0, rate); - - if ((target - curr) / 64 == 0) /* Close enough to target. */ - { - gus_rampoff( |