Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 413 insertions, 0 deletions

diff --git a/sound/isa/gus/gus_reset.c b/sound/isa/gus/gus_reset.c
new file mode 100644
index 000000000000..b4e66f6a10ae
--- /dev/null
+++ b/sound/isa/gus/gus_reset.c
@@ -0,0 +1,413 @@
+/*
+ *  Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ *
+ *
+ *   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., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ *
+ */
+
+#include <sound/driver.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/time.h>
+#include <sound/core.h>
+#include <sound/gus.h>
+
+extern void snd_gf1_timers_init(snd_gus_card_t * gus);
+extern void snd_gf1_timers_done(snd_gus_card_t * gus);
+extern int snd_gf1_synth_init(snd_gus_card_t * gus);
+extern void snd_gf1_synth_done(snd_gus_card_t * gus);
+
+/*
+ *  ok.. default interrupt handlers...
+ */
+
+static void snd_gf1_default_interrupt_handler_midi_out(snd_gus_card_t * gus)
+{
+        snd_gf1_uart_cmd(gus, gus->gf1.uart_cmd &= ~0x20);
+}
+
+static void snd_gf1_default_interrupt_handler_midi_in(snd_gus_card_t * gus)
+{
+        snd_gf1_uart_cmd(gus, gus->gf1.uart_cmd &= ~0x80);
+}
+
+static void snd_gf1_default_interrupt_handler_timer1(snd_gus_card_t * gus)
+{
+        snd_gf1_i_write8(gus, SNDRV_GF1_GB_SOUND_BLASTER_CONTROL, gus->gf1.timer_enabled &= ~4);
+}
+
+static void snd_gf1_default_interrupt_handler_timer2(snd_gus_card_t * gus)
+{
+        snd_gf1_i_write8(gus, SNDRV_GF1_GB_SOUND_BLASTER_CONTROL, gus->gf1.timer_enabled &= ~8);
+}
+
+static void snd_gf1_default_interrupt_handler_wave_and_volume(snd_gus_card_t * gus, snd_gus_voice_t * voice)
+{
+        snd_gf1_i_ctrl_stop(gus, 0x00);
+        snd_gf1_i_ctrl_stop(gus, 0x0d);
+}
+
+static void snd_gf1_default_interrupt_handler_dma_write(snd_gus_card_t * gus)
+{
+        snd_gf1_i_write8(gus, 0x41, 0x00);
+}
+
+static void snd_gf1_default_interrupt_handler_dma_read(snd_gus_card_t * gus)
+{
+        snd_gf1_i_write8(gus, 0x49, 0x00);
+}
+
+void snd_gf1_set_default_handlers(snd_gus_card_t * gus, unsigned int what)
+{
+        if (what & SNDRV_GF1_HANDLER_MIDI_OUT)
+                gus->gf1.interrupt_handler_midi_out = snd_gf1_default_interrupt_handler_midi_out;
+        if (what & SNDRV_GF1_HANDLER_MIDI_IN)
+                gus->gf1.interrupt_handler_midi_in = snd_gf1_default_interrupt_handler_midi_in;
+        if (what & SNDRV_GF1_HANDLER_TIMER1)
+                gus->gf1.interrupt_handler_timer1 = snd_gf1_default_interrupt_handler_timer1;
+        if (what & SNDRV_GF1_HANDLER_TIMER2)
+                gus->gf1.interrupt_handler_timer2 = snd_gf1_default_interrupt_handler_timer2;
+        if (what & SNDRV_GF1_HANDLER_VOICE) {
+                snd_gus_voice_t *voice;
+                
+                voice = &gus->gf1.voices[what & 0xffff];
+                voice->handler_wave =
+                voice->handler_volume = snd_gf1_default_interrupt_handler_wave_and_volume;
+                voice->handler_effect = NULL;
+                voice->volume_change = NULL;
+        }
+        if (what & SNDRV_GF1_HANDLER_DMA_WRITE)
+                gus->gf1.interrupt_handler_dma_write = snd_gf1_default_interrupt_handler_dma_write;
+        if (what & SNDRV_GF1_HANDLER_DMA_READ)
+                gus->gf1.interrupt_handler_dma_read = snd_gf1_default_interrupt_handler_dma_read;
+}
+
+/*
+
+ */
+
+static void snd_gf1_clear_regs(snd_gus_card_t * gus)
+{
+        unsigned long flags;
+
+        spin_lock_irqsave(&gus->reg_lock, flags);
+        inb(GUSP(gus, IRQSTAT));
+        snd_gf1_write8(gus, 0x41, 0);   /* DRAM DMA Control Register */
+        snd_gf1_write8(gus, 0x45, 0);   /* Timer Control */
+        snd_gf1_write8(gus, 0x49, 0);   /* Sampling Control Register */
+        spin_unlock_irqrestore(&gus->reg_lock, flags);
+}
+
+static void snd_gf1_look_regs(snd_gus_card_t * gus)
+{
+        unsigned long flags;
+
+        spin_lock_irqsave(&gus->reg_lock, flags);
+        snd_gf1_look8(gus, 0x41);       /* DRAM DMA Control Register */
+        snd_gf1_look8(gus, 0x49);       /* Sampling Control Register */
+        inb(GUSP(gus, IRQSTAT));
+        snd_gf1_read8(gus, 0x0f);       /* IRQ Source Register */
+        spin_unlock_irqrestore(&gus->reg_lock, flags);
+}
+
+/*
+ *  put selected GF1 voices to initial stage...
+ */
+
+void snd_gf1_smart_stop_voice(snd_gus_card_t * gus, unsigned short voice)
+{
+        unsigned long flags;
+
+        spin_lock_irqsave(&gus->reg_lock, flags);
+        snd_gf1_select_voice(gus, voice);
+#if 0
+        printk(" -%i- smart stop voice - volume = 0x%x\n", voice, snd_gf1_i_read16(gus, SNDRV_GF1_VW_VOLUME));
+#endif
+        snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_ADDRESS_CONTROL);
+        snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_VOLUME_CONTROL);
+        spin_unlock_irqrestore(&gus->reg_lock, flags);
+}
+
+void snd_gf1_stop_voice(snd_gus_card_t * gus, unsigned short voice)
+{
+        unsigned long flags;
+
+        spin_lock_irqsave(&gus->reg_lock, flags);
+        snd_gf1_select_voice(gus, voice);
+#if 0
+        printk(" -%i- stop voice - volume = 0x%x\n", voice, snd_gf1_i_read16(gus, SNDRV_GF1_VW_VOLUME));
+#endif
+        snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_ADDRESS_CONTROL);
+        snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_VOLUME_CONTROL);
+        if (gus->gf1.enh_mode)
+                snd_gf1_write8(gus, SNDRV_GF1_VB_ACCUMULATOR, 0);
+        spin_unlock_irqrestore(&gus->reg_lock, flags);
+#if 0
+        snd_gf1_lfo_shutdown(gus, voice, ULTRA_LFO_VIBRATO);
+        snd_gf1_lfo_shutdown(gus, voice, ULTRA_LFO_TREMOLO);
+#endif
+}
+
+void snd_gf1_clear_voices(snd_gus_card_t * gus, unsigned short v_min, unsigned short v_max)
+{
+        unsigned long flags;
+        unsigned int daddr;
+        unsigned short i, w_16;
+
+        daddr = gus->gf1.default_voice_address << 4;
+        for (i = v_min; i <= v_max; i++) {
+#if 0
+                if (gus->gf1.syn_voices)
+                        gus->gf1.syn_voices[i].flags = ~VFLG_DYNAMIC;
+#endif
+                spin_lock_irqsave(&gus->reg_lock, flags);
+                snd_gf1_select_voice(gus, i);
+                snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_ADDRESS_CONTROL);   /* Voice Control Register = voice stop */
+                snd_gf1_ctrl_stop(gus, SNDRV_GF1_VB_VOLUME_CONTROL);    /* Volume Ramp Control Register = ramp off */
+                if (gus->gf1.enh_mode)
+                        snd_gf1_write8(gus, SNDRV_GF1_VB_MODE, gus->gf1.memory ? 0x02 : 0x82);  /* Deactivate voice */
+                w_16 = snd_gf1_read8(gus, SNDRV_GF1_VB_ADDRESS_CONTROL) & 0x04;
+                snd_gf1_write16(gus, SNDRV_GF1_VW_FREQUENCY, 0x400);
+                snd_gf1_write_addr(gus, SNDRV_GF1_VA_START, daddr, w_16);
+                snd_gf1_write_addr(gus, SNDRV_GF1_VA_END, daddr, w_16);
+                snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_START, 0);
+                snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_END, 0);
+                snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_RATE, 0);
+                snd_gf1_write16(gus, SNDRV_GF1_VW_VOLUME, 0);
+                snd_gf1_write_addr(gus, SNDRV_GF1_VA_CURRENT, daddr, w_16);
+                snd_gf1_write8(gus, SNDRV_GF1_VB_PAN, 7);
+                if (gus->gf1.enh_mode) {
+                        snd_gf1_write8(gus, SNDRV_GF1_VB_ACCUMULATOR, 0);
+                        snd_gf1_write16(gus, SNDRV_GF1_VW_EFFECT_VOLUME, 0);
+                        snd_gf1_write16(gus, SNDRV_GF1_VW_EFFECT_VOLUME_FINAL, 0);
+                }
+                spin_unlock_irqrestore(&gus->reg_lock, flags);
+#if 0
+                snd_gf1_lfo_shutdown(gus, i, ULTRA_LFO_VIBRATO);
+                snd_gf1_lfo_shutdown(gus, i, ULTRA_LFO_TREMOLO);
+#endif
+        }
+}
+
+void snd_gf1_stop_voices(snd_gus_card_t * gus, unsigned short v_min, unsigned short v_max)
+{
+        unsigned long flags;
+        short i, ramp_ok;
+        unsigned short ramp_end;
+
+        if (!in_interrupt()) {  /* this can't be done in interrupt */
+                for (i = v_min, ramp_ok = 0; i <= v_max; i++) {
+                        spin_lock_irqsave(&gus->reg_lock, flags);
+                        snd_gf1_select_voice(gus, i);
+                        ramp_end = snd_gf1_read16(gus, 9) >> 8;
+                        if (ramp_end > SNDRV_GF1_MIN_OFFSET) {
+                                ramp_ok++;
+                                snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_RATE, 20);      /* ramp rate */
+                                snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_START, SNDRV_GF1_MIN_OFFSET);   /* ramp start */
+                                snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_END, ramp_end); /* ramp end */
+                                snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, 0x40); /* ramp down */
+                                if (gus->gf1.enh_mode) {
+                                        snd_gf1_delay(gus);
+                                        snd_gf1_write8(gus, SNDRV_GF1_VB_VOLUME_CONTROL, 0x40);
+                                }
+                        }
+                        spin_unlock_irqrestore(&gus->reg_lock, flags);
+                }
+                msleep_interruptible(50);
+        }
+        snd_gf1_clear_voices(gus, v_min, v_max);
+}
+
+static void snd_gf1_alloc_voice_use(snd_gus_card_t * gus, 
+                                    snd_gus_voice_t * pvoice,
+                                    int type, int client, int port)
+{
+        pvoice->use = 1;
+        switch (type) {
+        case SNDRV_GF1_VOICE_TYPE_PCM:
+                gus->gf1.pcm_alloc_voices++;
+                pvoice->pcm = 1;
+                break;
+        case SNDRV_GF1_VOICE_TYPE_SYNTH:
+                pvoice->synth = 1;
+                pvoice->client = client;
+                pvoice->port = port;
+                break;
+        case SNDRV_GF1_VOICE_TYPE_MIDI:
+                pvoice->midi = 1;
+                pvoice->client = client;
+                pvoice->port = port;
+                break;
+        }
+}
+
+snd_gus_voice_t *snd_gf1_alloc_voice(snd_gus_card_t * gus, int type, int client, int port)
+{
+        snd_gus_voice_t *pvoice;
+        unsigned long flags;
+        int idx;
+
+        spin_lock_irqsave(&gus->voice_alloc, flags);
+        if (type == SNDRV_GF1_VOICE_TYPE_PCM) {
+                if (gus->gf1.pcm_alloc_voices >= gus->gf1.pcm_channels) {
+                        spin_unlock_irqrestore(&gus->voice_alloc, flags);
+                        return NULL;
+                }
+        }
+        for (idx = 0; idx < 32; idx++) {
+                pvoice = &gus->gf1.voices[idx];
+                if (!pvoice->use) {
+                        snd_gf1_alloc_voice_use(gus, pvoice, type, client, port);
+                        spin_unlock_irqrestore(&gus->voice_alloc, flags);
+                        return pvoice;
+                }
+        } 
+        for (idx = 0; idx < 32; idx++) {
+                pvoice = &gus->gf1.voices[idx];
+                if (pvoice->midi && !pvoice->client) {
+                        snd_gf1_clear_voices(gus, pvoice->number, pvoice->number);
+                        snd_gf1_alloc_voice_use(gus, pvoice, type, client, port);
+                        spin_unlock_irqrestore(&gus->voice_alloc, flags);
+                        return pvoice;
+                }
+        } 
+        spin_unlock_irqrestore(&gus->voice_alloc, flags);
+        return NULL;
+}
+
+void snd_gf1_free_voice(snd_gus_card_t * gus, snd_gus_voice_t *voice)
+{
+        unsigned long flags;
+        void (*private_free)(snd_gus_voice_t *voice);
+        void *private_data;
+
+        if (voice == NULL || !voice->use)
+                return;
+        snd_gf1_set_default_handlers(gus, SNDRV_GF1_HANDLER_VOICE | voice->number);
+        snd_gf1_clear_voices(gus, voice->number, voice->number);
+        spin_lock_irqsave(&gus->voice_alloc, flags);
+        private_free = voice->private_free;
+        private_data = voice->private_data;
+        voice->private_free = NULL;
+        voice->private_data = NULL;
+        if (voice->pcm)
+                gus->gf1.pcm_alloc_voices--;
+        voice->use = voice->pcm = 0;
+        voice->sample_ops = NULL;
+        spin_unlock_irqrestore(&gus->voice_alloc, flags);
+        if (private_free)
+                private_free(voice);
+}
+
+/*
+ *  call this function only by start of driver
+ */
+
+int snd_gf1_start(snd_gus_card_t * gus)
+{
+        unsigned long flags;
+        unsigned int i;
+
+        snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 0);   /* reset GF1 */
+        udelay(160);
+        snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 1);   /* disable IRQ & DAC */
+        udelay(160);
+        snd_gf1_i_write8(gus, SNDRV_GF1_GB_JOYSTICK_DAC_LEVEL, gus->joystick_dac);
+
+        snd_gf1_set_default_handlers(gus, SNDRV_GF1_HANDLER_ALL);
+        for (i = 0; i < 32; i++) {
+                gus->gf1.voices[i].number = i;
+                snd_gf1_set_default_handlers(gus, SNDRV_GF1_HANDLER_VOICE | i);
+        }
+
+        snd_gf1_uart_cmd(gus, 0x03);    /* huh.. this cleanup took me some time... */
+
+        if (gus->gf1.enh_mode) {        /* enhanced mode !!!! */
+                snd_gf1_i_write8(gus, SNDRV_GF1_GB_GLOBAL_MODE, snd_gf1_i_look8(gus, SNDRV_GF1_GB_GLOBAL_MODE) | 0x01);
+                snd_gf1_i_write8(gus, SNDRV_GF1_GB_MEMORY_CONTROL, 0x01);
+        }
+        snd_gf1_clear_regs(gus);
+        snd_gf1_select_active_voices(gus);
+        snd_gf1_delay(gus);
+        gus->gf1.default_voice_address = gus->gf1.memory > 0 ? 0 : 512 - 8;
+        /* initialize LFOs & clear LFOs memory */
+        if (gus->gf1.enh_mode && gus->gf1.memory) {
+                gus->gf1.hw_lfo = 1;
+                gus->gf1.default_voice_address += 1024;
+        } else {
+                gus->gf1.sw_lfo = 1;
+        }
+#if 0
+        snd_gf1_lfo_init(gus);
+#endif
+        if (gus->gf1.memory > 0)
+                for (i = 0; i < 4; i++)
+                        snd_gf1_poke(gus, gus->gf1.default_voice_address + i, 0);
+        snd_gf1_clear_regs(gus);
+        snd_gf1_clear_voices(gus, 0, 31);
+        snd_gf1_look_regs(gus);
+        udelay(160);
+        snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 7);   /* Reset Register = IRQ enable, DAC enable */
+        udelay(160);
+        snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 7);   /* Reset Register = IRQ enable, DAC enable */
+        if (gus->gf1.enh_mode) {        /* enhanced mode !!!! */
+                snd_gf1_i_write8(gus, SNDRV_GF1_GB_GLOBAL_MODE, snd_gf1_i_look8(gus, SNDRV_GF1_GB_GLOBAL_MODE) | 0x01);
+                snd_gf1_i_write8(gus, SNDRV_GF1_GB_MEMORY_CONTROL, 0x01);
+        }
+        while ((snd_gf1_i_read8(gus, SNDRV_GF1_GB_VOICES_IRQ) & 0xc0) != 0xc0);
+
+        spin_lock_irqsave(&gus->reg_lock, flags);
+        outb(gus->gf1.active_voice = 0, GUSP(gus, GF1PAGE));
+        outb(gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
+        spin_unlock_irqrestore(&gus->reg_lock, flags);
+
+        snd_gf1_timers_init(gus);
+        snd_gf1_look_regs(gus);
+        snd_gf1_mem_init(gus);
+        snd_gf1_mem_proc_init(gus);
+#ifdef CONFIG_SND_DEBUG
+        snd_gus_irq_profile_init(gus);
+#endif
+
+#if 0
+        if (gus->pnp_flag) {
+                if (gus->chip.playback_fifo_size > 0)
+                        snd_gf1_i_write16(gus, SNDRV_GF1_GW_FIFO_RECORD_BASE_ADDR, gus->chip.playback_fifo_block->ptr >> 8);
+                if (gus->chip.record_fifo_size > 0)
+                        snd_gf1_i_write16(gus, SNDRV_GF1_GW_FIFO_PLAY_BASE_ADDR, gus->chip.record_fifo_block->ptr >> 8);
+                snd_gf1_i_write16(gus, SNDRV_GF1_GW_FIFO_SIZE, gus->chip.interwave_fifo_reg);
+        }
+#endif
+
+        return 0;
+}
+
+/*
+ *  call this function only by shutdown of driver
+ */
+
+int snd_gf1_stop(snd_gus_card_t * gus)
+{
+        snd_gf1_i_write8(gus, SNDRV_GF1_GB_SOUND_BLASTER_CONTROL, 0); /* stop all timers */
+        snd_gf1_stop_voices(gus, 0, 31);                /* stop all voices */
+        snd_gf1_i_write8(gus, SNDRV_GF1_GB_RESET, 1);   /* disable IRQ & DAC */
+        snd_gf1_timers_done(gus);
+        snd_gf1_mem_done(gus);
+#if 0
+        snd_gf1_lfo_done(gus);
+#endif
+        return 0;
+}