1 files changed, 453 insertions, 0 deletions

diff --git a/sound/isa/gus/gus_main.c b/sound/isa/gus/gus_main.c
new file mode 100644
index 000000000..b7518122a
--- /dev/null
+++ b/sound/isa/gus/gus_main.c
@@ -0,0 +1,453 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  Routines for Gravis UltraSound soundcards
+ *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
+ */
+
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/ioport.h>
+#include <linux/module.h>
+#include <sound/core.h>
+#include <sound/gus.h>
+#include <sound/control.h>
+
+#include <asm/dma.h>
+
+MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
+MODULE_DESCRIPTION("Routines for Gravis UltraSound soundcards");
+MODULE_LICENSE("GPL");
+
+static int snd_gus_init_dma_irq(struct snd_gus_card * gus, int latches);
+
+int snd_gus_use_inc(struct snd_gus_card * gus)
+{
+	if (!try_module_get(gus->card->module))
+		return 0;
+	return 1;
+}
+
+void snd_gus_use_dec(struct snd_gus_card * gus)
+{
+	module_put(gus->card->module);
+}
+
+static int snd_gus_joystick_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 31;
+	return 0;
+}
+
+static int snd_gus_joystick_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
+	
+	ucontrol->value.integer.value[0] = gus->joystick_dac & 31;
+	return 0;
+}
+
+static int snd_gus_joystick_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_gus_card *gus = snd_kcontrol_chip(kcontrol);
+	unsigned long flags;
+	int change;
+	unsigned char nval;
+	
+	nval = ucontrol->value.integer.value[0] & 31;
+	spin_lock_irqsave(&gus->reg_lock, flags);
+	change = gus->joystick_dac != nval;
+	gus->joystick_dac = nval;
+	snd_gf1_write8(gus, SNDRV_GF1_GB_JOYSTICK_DAC_LEVEL, gus->joystick_dac);
+	spin_unlock_irqrestore(&gus->reg_lock, flags);
+	return change;
+}
+
+static const struct snd_kcontrol_new snd_gus_joystick_control = {
+	.iface = SNDRV_CTL_ELEM_IFACE_CARD,
+	.name = "Joystick Speed",
+	.info = snd_gus_joystick_info,
+	.get = snd_gus_joystick_get,
+	.put = snd_gus_joystick_put
+};
+
+static void snd_gus_init_control(struct snd_gus_card *gus)
+{
+	if (!gus->ace_flag)
+		snd_ctl_add(gus->card, snd_ctl_new1(&snd_gus_joystick_control, gus));
+}
+
+/*
+ *
+ */
+
+static int snd_gus_free(struct snd_gus_card *gus)
+{
+	if (gus->gf1.res_port2 == NULL)
+		goto __hw_end;
+	snd_gf1_stop(gus);
+	snd_gus_init_dma_irq(gus, 0);
+      __hw_end:
+	release_and_free_resource(gus->gf1.res_port1);
+	release_and_free_resource(gus->gf1.res_port2);
+	if (gus->gf1.irq >= 0)
+		free_irq(gus->gf1.irq, (void *) gus);
+	if (gus->gf1.dma1 >= 0) {
+		disable_dma(gus->gf1.dma1);
+		free_dma(gus->gf1.dma1);
+	}
+	if (!gus->equal_dma && gus->gf1.dma2 >= 0) {
+		disable_dma(gus->gf1.dma2);
+		free_dma(gus->gf1.dma2);
+	}
+	kfree(gus);
+	return 0;
+}
+
+static int snd_gus_dev_free(struct snd_device *device)
+{
+	struct snd_gus_card *gus = device->device_data;
+	return snd_gus_free(gus);
+}
+
+int snd_gus_create(struct snd_card *card,
+		   unsigned long port,
+		   int irq, int dma1, int dma2,
+		   int timer_dev,
+		   int voices,
+		   int pcm_channels,
+		   int effect,
+		   struct snd_gus_card **rgus)
+{
+	struct snd_gus_card *gus;
+	int err;
+	static const struct snd_device_ops ops = {
+		.dev_free =	snd_gus_dev_free,
+	};
+
+	*rgus = NULL;
+	gus = kzalloc(sizeof(*gus), GFP_KERNEL);
+	if (gus == NULL)
+		return -ENOMEM;
+	spin_lock_init(&gus->reg_lock);
+	spin_lock_init(&gus->voice_alloc);
+	spin_lock_init(&gus->active_voice_lock);
+	spin_lock_init(&gus->event_lock);
+	spin_lock_init(&gus->dma_lock);
+	spin_lock_init(&gus->pcm_volume_level_lock);
+	spin_lock_init(&gus->uart_cmd_lock);
+	mutex_init(&gus->dma_mutex);
+	gus->gf1.irq = -1;
+	gus->gf1.dma1 = -1;
+	gus->gf1.dma2 = -1;
+	gus->card = card;
+	gus->gf1.port = port;
+	/* fill register variables for speedup */
+	gus->gf1.reg_page = GUSP(gus, GF1PAGE);
+	gus->gf1.reg_regsel = GUSP(gus, GF1REGSEL);
+	gus->gf1.reg_data8 = GUSP(gus, GF1DATAHIGH);
+	gus->gf1.reg_data16 = GUSP(gus, GF1DATALOW);
+	gus->gf1.reg_irqstat = GUSP(gus, IRQSTAT);
+	gus->gf1.reg_dram = GUSP(gus, DRAM);
+	gus->gf1.reg_timerctrl = GUSP(gus, TIMERCNTRL);
+	gus->gf1.reg_timerdata = GUSP(gus, TIMERDATA);
+	/* allocate resources */
+	if ((gus->gf1.res_port1 = request_region(port, 16, "GUS GF1 (Adlib/SB)")) == NULL) {
+		snd_printk(KERN_ERR "gus: can't grab SB port 0x%lx\n", port);
+		snd_gus_free(gus);
+		return -EBUSY;
+	}
+	if ((gus->gf1.res_port2 = request_region(port + 0x100, 12, "GUS GF1 (Synth)")) == NULL) {
+		snd_printk(KERN_ERR "gus: can't grab synth port 0x%lx\n", port + 0x100);
+		snd_gus_free(gus);
+		return -EBUSY;
+	}
+	if (irq >= 0 && request_irq(irq, snd_gus_interrupt, 0, "GUS GF1", (void *) gus)) {
+		snd_printk(KERN_ERR "gus: can't grab irq %d\n", irq);
+		snd_gus_free(gus);
+		return -EBUSY;
+	}
+	gus->gf1.irq = irq;
+	card->sync_irq = irq;
+	if (request_dma(dma1, "GUS - 1")) {
+		snd_printk(KERN_ERR "gus: can't grab DMA1 %d\n", dma1);
+		snd_gus_free(gus);
+		return -EBUSY;
+	}
+	gus->gf1.dma1 = dma1;
+	if (dma2 >= 0 && dma1 != dma2) {
+		if (request_dma(dma2, "GUS - 2")) {
+			snd_printk(KERN_ERR "gus: can't grab DMA2 %d\n", dma2);
+			snd_gus_free(gus);
+			return -EBUSY;
+		}
+		gus->gf1.dma2 = dma2;
+	} else {
+		gus->gf1.dma2 = gus->gf1.dma1;
+		gus->equal_dma = 1;
+	}
+	gus->timer_dev = timer_dev;
+	if (voices < 14)
+		voices = 14;
+	if (voices > 32)
+		voices = 32;
+	if (pcm_channels < 0)
+		pcm_channels = 0;
+	if (pcm_channels > 8)
+		pcm_channels = 8;
+	pcm_channels++;
+	pcm_channels &= ~1;
+	gus->gf1.effect = effect ? 1 : 0;
+	gus->gf1.active_voices = voices;
+	gus->gf1.pcm_channels = pcm_channels;
+	gus->gf1.volume_ramp = 25;
+	gus->gf1.smooth_pan = 1;
+	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, gus, &ops)) < 0) {
+		snd_gus_free(gus);
+		return err;
+	}
+	*rgus = gus;
+	return 0;
+}
+
+/*
+ *  Memory detection routine for plain GF1 soundcards
+ */
+
+static int snd_gus_detect_memory(struct snd_gus_card * gus)
+{
+	int l, idx, local;
+	unsigned char d;
+
+	snd_gf1_poke(gus, 0L, 0xaa);
+	snd_gf1_poke(gus, 1L, 0x55);
+	if (snd_gf1_peek(gus, 0L) != 0xaa || snd_gf1_peek(gus, 1L) != 0x55) {
+		snd_printk(KERN_ERR "plain GF1 card at 0x%lx without onboard DRAM?\n", gus->gf1.port);
+		return -ENOMEM;
+	}
+	for (idx = 1, d = 0xab; idx < 4; idx++, d++) {
+		local = idx << 18;
+		snd_gf1_poke(gus, local, d);
+		snd_gf1_poke(gus, local + 1, d + 1);
+		if (snd_gf1_peek(gus, local) != d ||
+		    snd_gf1_peek(gus, local + 1) != d + 1 ||
+		    snd_gf1_peek(gus, 0L) != 0xaa)
+			break;
+	}
+#if 1
+	gus->gf1.memory = idx << 18;
+#else
+	gus->gf1.memory = 256 * 1024;
+#endif
+	for (l = 0, local = gus->gf1.memory; l < 4; l++, local -= 256 * 1024) {
+		gus->gf1.mem_alloc.banks_8[l].address =
+		    gus->gf1.mem_alloc.banks_8[l].size = 0;
+		gus->gf1.mem_alloc.banks_16[l].address = l << 18;
+		gus->gf1.mem_alloc.banks_16[l].size = local > 0 ? 256 * 1024 : 0;
+	}
+	gus->gf1.mem_alloc.banks_8[0].size = gus->gf1.memory;
+	return 0;		/* some memory were detected */
+}
+
+static int snd_gus_init_dma_irq(struct snd_gus_card * gus, int latches)
+{
+	struct snd_card *card;
+	unsigned long flags;
+	int irq, dma1, dma2;
+	static const unsigned char irqs[16] =
+		{0, 0, 1, 3, 0, 2, 0, 4, 0, 1, 0, 5, 6, 0, 0, 7};
+	static const unsigned char dmas[8] =
+		{6, 1, 0, 2, 0, 3, 4, 5};
+
+	if (snd_BUG_ON(!gus))
+		return -EINVAL;
+	card = gus->card;
+	if (snd_BUG_ON(!card))
+		return -EINVAL;
+
+	gus->mix_cntrl_reg &= 0xf8;
+	gus->mix_cntrl_reg |= 0x01;	/* disable MIC, LINE IN, enable LINE OUT */
+	if (gus->codec_flag || gus->ess_flag) {
+		gus->mix_cntrl_reg &= ~1;	/* enable LINE IN */
+		gus->mix_cntrl_reg |= 4;	/* enable MIC */
+	}
+	dma1 = gus->gf1.dma1;
+	dma1 = abs(dma1);
+	dma1 = dmas[dma1 & 7];
+	dma2 = gus->gf1.dma2;
+	dma2 = abs(dma2);
+	dma2 = dmas[dma2 & 7];
+	dma1 |= gus->equal_dma ? 0x40 : (dma2 << 3);
+
+	if ((dma1 & 7) == 0 || (dma2 & 7) == 0) {
+		snd_printk(KERN_ERR "Error! DMA isn't defined.\n");
+		return -EINVAL;
+	}
+	irq = gus->gf1.irq;
+	irq = abs(irq);
+	irq = irqs[irq & 0x0f];
+	if (irq == 0) {
+		snd_printk(KERN_ERR "Error! IRQ isn't defined.\n");
+		return -EINVAL;
+	}
+	irq |= 0x40;
+#if 0
+	card->mixer.mix_ctrl_reg |= 0x10;
+#endif
+
+	spin_lock_irqsave(&gus->reg_lock, flags);
+	outb(5, GUSP(gus, REGCNTRLS));
+	outb(gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
+	outb(0x00, GUSP(gus, IRQDMACNTRLREG));
+	outb(0, GUSP(gus, REGCNTRLS));
+	spin_unlock_irqrestore(&gus->reg_lock, flags);
+
+	udelay(100);
+
+	spin_lock_irqsave(&gus->reg_lock, flags);
+	outb(0x00 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
+	outb(dma1, GUSP(gus, IRQDMACNTRLREG));
+	if (latches) {
+		outb(0x40 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
+		outb(irq, GUSP(gus, IRQDMACNTRLREG));
+	}
+	spin_unlock_irqrestore(&gus->reg_lock, flags);
+
+	udelay(100);
+
+	spin_lock_irqsave(&gus->reg_lock, flags);
+	outb(0x00 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
+	outb(dma1, GUSP(gus, IRQDMACNTRLREG));
+	if (latches) {
+		outb(0x40 | gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
+		outb(irq, GUSP(gus, IRQDMACNTRLREG));
+	}
+	spin_unlock_irqrestore(&gus->reg_lock, flags);
+
+	snd_gf1_delay(gus);
+
+	if (latches)
+		gus->mix_cntrl_reg |= 0x08;	/* enable latches */
+	else
+		gus->mix_cntrl_reg &= ~0x08;	/* disable latches */
+	spin_lock_irqsave(&gus->reg_lock, flags);
+	outb(gus->mix_cntrl_reg, GUSP(gus, MIXCNTRLREG));
+	outb(0, GUSP(gus, GF1PAGE));
+	spin_unlock_irqrestore(&gus->reg_lock, flags);
+
+	return 0;
+}
+
+static int snd_gus_check_version(struct snd_gus_card * gus)
+{
+	unsigned long flags;
+	unsigned char val, rev;
+	struct snd_card *card;
+
+	card = gus->card;
+	spin_lock_irqsave(&gus->reg_lock, flags);
+	outb(0x20, GUSP(gus, REGCNTRLS));
+	val = inb(GUSP(gus, REGCNTRLS));
+	rev = inb(GUSP(gus, BOARDVERSION));
+	spin_unlock_irqrestore(&gus->reg_lock, flags);
+	snd_printdd("GF1 [0x%lx] init - val = 0x%x, rev = 0x%x\n", gus->gf1.port, val, rev);
+	strcpy(card->driver, "GUS");
+	strcpy(card->longname, "Gravis UltraSound Classic (2.4)");
+	if ((val != 255 && (val & 0x06)) || (rev >= 5 && rev != 255)) {
+		if (rev >= 5 && rev <= 9) {
+			gus->ics_flag = 1;
+			if (rev == 5)
+				gus->ics_flipped = 1;
+			card->longname[27] = '3';
+			card->longname[29] = rev == 5 ? '5' : '7';
+		}
+		if (rev >= 10 && rev != 255) {
+			if (rev >= 10 && rev <= 11) {
+				strcpy(card->driver, "GUS MAX");
+				strcpy(card->longname, "Gravis UltraSound MAX");
+				gus->max_flag = 1;
+			} else if (rev == 0x30) {
+				strcpy(card->driver, "GUS ACE");
+				strcpy(card->longname, "Gravis UltraSound Ace");
+				gus->ace_flag = 1;
+			} else if (rev == 0x50) {
+				strcpy(card->driver, "GUS Extreme");
+				strcpy(card->longname, "Gravis UltraSound Extreme");
+				gus->ess_flag = 1;
+			} else {
+				snd_printk(KERN_ERR "unknown GF1 revision number at 0x%lx - 0x%x (0x%x)\n", gus->gf1.port, rev, val);
+				snd_printk(KERN_ERR "  please - report to <perex@perex.cz>\n");
+			}
+		}
+	}
+	strcpy(card->shortname, card->longname);
+	gus->uart_enable = 1;	/* standard GUSes doesn't have midi uart trouble */
+	snd_gus_init_control(gus);
+	return 0;
+}
+
+int snd_gus_initialize(struct snd_gus_card *gus)
+{
+	int err;
+
+	if (!gus->interwave) {
+		if ((err = snd_gus_check_version(gus)) < 0) {
+			snd_printk(KERN_ERR "version check failed\n");
+			return err;
+		}
+		if ((err = snd_gus_detect_memory(gus)) < 0)
+			return err;
+	}
+	if ((err = snd_gus_init_dma_irq(gus, 1)) < 0)
+		return err;
+	snd_gf1_start(gus);
+	gus->initialized = 1;
+	return 0;
+}
+
+  /* gus_io.c */
+EXPORT_SYMBOL(snd_gf1_delay);
+EXPORT_SYMBOL(snd_gf1_write8);
+EXPORT_SYMBOL(snd_gf1_look8);
+EXPORT_SYMBOL(snd_gf1_write16);
+EXPORT_SYMBOL(snd_gf1_look16);
+EXPORT_SYMBOL(snd_gf1_i_write8);
+EXPORT_SYMBOL(snd_gf1_i_look8);
+EXPORT_SYMBOL(snd_gf1_i_look16);
+EXPORT_SYMBOL(snd_gf1_dram_addr);
+EXPORT_SYMBOL(snd_gf1_write_addr);
+EXPORT_SYMBOL(snd_gf1_poke);
+EXPORT_SYMBOL(snd_gf1_peek);
+  /* gus_reset.c */
+EXPORT_SYMBOL(snd_gf1_alloc_voice);
+EXPORT_SYMBOL(snd_gf1_free_voice);
+EXPORT_SYMBOL(snd_gf1_ctrl_stop);
+EXPORT_SYMBOL(snd_gf1_stop_voice);
+  /* gus_mixer.c */
+EXPORT_SYMBOL(snd_gf1_new_mixer);
+  /* gus_pcm.c */
+EXPORT_SYMBOL(snd_gf1_pcm_new);
+  /* gus.c */
+EXPORT_SYMBOL(snd_gus_use_inc);
+EXPORT_SYMBOL(snd_gus_use_dec);
+EXPORT_SYMBOL(snd_gus_create);
+EXPORT_SYMBOL(snd_gus_initialize);
+  /* gus_irq.c */
+EXPORT_SYMBOL(snd_gus_interrupt);
+  /* gus_uart.c */
+EXPORT_SYMBOL(snd_gf1_rawmidi_new);
+  /* gus_dram.c */
+EXPORT_SYMBOL(snd_gus_dram_write);
+EXPORT_SYMBOL(snd_gus_dram_read);
+  /* gus_volume.c */
+EXPORT_SYMBOL(snd_gf1_lvol_to_gvol_raw);
+EXPORT_SYMBOL(snd_gf1_translate_freq);
+  /* gus_mem.c */
+EXPORT_SYMBOL(snd_gf1_mem_alloc);
+EXPORT_SYMBOL(snd_gf1_mem_xfree);
+EXPORT_SYMBOL(snd_gf1_mem_free);
+EXPORT_SYMBOL(snd_gf1_mem_lock);