linux/sound/isa/gus/gus_io.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *  Copyright (c) by Jaroslav Kysela <[email protected]>
 *  I/O routines for GF1/InterWave synthesizer chips
 */

#include <linux/delay.h>
#include <linux/time.h>
#include <sound/core.h>
#include <sound/gus.h>

void snd_gf1_delay(struct snd_gus_card * gus)
{}

/*
 *  =======================================================================
 */

/*
 *  ok.. stop of control registers (wave & ramp) need some special things..
 *       big UltraClick (tm) elimination...
 */

static inline void __snd_gf1_ctrl_stop(struct snd_gus_card * gus, unsigned char reg)
{}

static inline void __snd_gf1_write8(struct snd_gus_card * gus,
				    unsigned char reg,
				    unsigned char data)
{}

static inline unsigned char __snd_gf1_look8(struct snd_gus_card * gus,
					    unsigned char reg)
{}

static inline void __snd_gf1_write16(struct snd_gus_card * gus,
				     unsigned char reg, unsigned int data)
{}

static inline unsigned short __snd_gf1_look16(struct snd_gus_card * gus,
					      unsigned char reg)
{}

static inline void __snd_gf1_adlib_write(struct snd_gus_card * gus,
					 unsigned char reg, unsigned char data)
{}

static inline void __snd_gf1_write_addr(struct snd_gus_card * gus, unsigned char reg,
                                        unsigned int addr, int w_16bit)
{}

static inline unsigned int __snd_gf1_read_addr(struct snd_gus_card * gus,
					       unsigned char reg, short w_16bit)
{}


/*
 *  =======================================================================
 */

void snd_gf1_ctrl_stop(struct snd_gus_card * gus, unsigned char reg)
{}

void snd_gf1_write8(struct snd_gus_card * gus,
		    unsigned char reg,
		    unsigned char data)
{}

unsigned char snd_gf1_look8(struct snd_gus_card * gus, unsigned char reg)
{}

void snd_gf1_write16(struct snd_gus_card * gus,
		     unsigned char reg,
		     unsigned int data)
{}

unsigned short snd_gf1_look16(struct snd_gus_card * gus, unsigned char reg)
{}

void snd_gf1_adlib_write(struct snd_gus_card * gus,
                         unsigned char reg,
                         unsigned char data)
{}

void snd_gf1_write_addr(struct snd_gus_card * gus, unsigned char reg,
                        unsigned int addr, short w_16bit)
{}

unsigned int snd_gf1_read_addr(struct snd_gus_card * gus,
                               unsigned char reg,
                               short w_16bit)
{}

/*

 */

void snd_gf1_i_ctrl_stop(struct snd_gus_card * gus, unsigned char reg)
{}

void snd_gf1_i_write8(struct snd_gus_card * gus,
		      unsigned char reg,
                      unsigned char data)
{}

unsigned char snd_gf1_i_look8(struct snd_gus_card * gus, unsigned char reg)
{}

void snd_gf1_i_write16(struct snd_gus_card * gus,
		       unsigned char reg,
		       unsigned int data)
{}

unsigned short snd_gf1_i_look16(struct snd_gus_card * gus, unsigned char reg)
{}

#if 0

void snd_gf1_i_adlib_write(struct snd_gus_card * gus,
		           unsigned char reg,
		           unsigned char data)
{
	unsigned long flags;

	spin_lock_irqsave(&gus->reg_lock, flags);
	__snd_gf1_adlib_write(gus, reg, data);
	spin_unlock_irqrestore(&gus->reg_lock, flags);
}

void snd_gf1_i_write_addr(struct snd_gus_card * gus, unsigned char reg,
			  unsigned int addr, short w_16bit)
{
	unsigned long flags;

	spin_lock_irqsave(&gus->reg_lock, flags);
	__snd_gf1_write_addr(gus, reg, addr, w_16bit);
	spin_unlock_irqrestore(&gus->reg_lock, flags);
}

#endif  /*  0  */

#ifdef CONFIG_SND_DEBUG
static unsigned int snd_gf1_i_read_addr(struct snd_gus_card * gus,
					unsigned char reg, short w_16bit)
{}
#endif

/*

 */

void snd_gf1_dram_addr(struct snd_gus_card * gus, unsigned int addr)
{}

void snd_gf1_poke(struct snd_gus_card * gus, unsigned int addr, unsigned char data)
{}

unsigned char snd_gf1_peek(struct snd_gus_card * gus, unsigned int addr)
{}

#if 0

void snd_gf1_pokew(struct snd_gus_card * gus, unsigned int addr, unsigned short data)
{
	unsigned long flags;

#ifdef CONFIG_SND_DEBUG
	if (!gus->interwave)
		snd_printk(KERN_DEBUG "snd_gf1_pokew - GF1!!!\n");
#endif
	spin_lock_irqsave(&gus->reg_lock, flags);
	outb(SNDRV_GF1_GW_DRAM_IO_LOW, gus->gf1.reg_regsel);
	mb();
	outw((unsigned short) addr, gus->gf1.reg_data16);
	mb();
	outb(SNDRV_GF1_GB_DRAM_IO_HIGH, gus->gf1.reg_regsel);
	mb();
	outb((unsigned char) (addr >> 16), gus->gf1.reg_data8);
	mb();
	outb(SNDRV_GF1_GW_DRAM_IO16, gus->gf1.reg_regsel);
	mb();
	outw(data, gus->gf1.reg_data16);
	spin_unlock_irqrestore(&gus->reg_lock, flags);
}

unsigned short snd_gf1_peekw(struct snd_gus_card * gus, unsigned int addr)
{
	unsigned long flags;
	unsigned short res;

#ifdef CONFIG_SND_DEBUG
	if (!gus->interwave)
		snd_printk(KERN_DEBUG "snd_gf1_peekw - GF1!!!\n");
#endif
	spin_lock_irqsave(&gus->reg_lock, flags);
	outb(SNDRV_GF1_GW_DRAM_IO_LOW, gus->gf1.reg_regsel);
	mb();
	outw((unsigned short) addr, gus->gf1.reg_data16);
	mb();
	outb(SNDRV_GF1_GB_DRAM_IO_HIGH, gus->gf1.reg_regsel);
	mb();
	outb((unsigned char) (addr >> 16), gus->gf1.reg_data8);
	mb();
	outb(SNDRV_GF1_GW_DRAM_IO16, gus->gf1.reg_regsel);
	mb();
	res = inw(gus->gf1.reg_data16);
	spin_unlock_irqrestore(&gus->reg_lock, flags);
	return res;
}

void snd_gf1_dram_setmem(struct snd_gus_card * gus, unsigned int addr,
			 unsigned short value, unsigned int count)
{
	unsigned long port;
	unsigned long flags;

#ifdef CONFIG_SND_DEBUG
	if (!gus->interwave)
		snd_printk(KERN_DEBUG "snd_gf1_dram_setmem - GF1!!!\n");
#endif
	addr &= ~1;
	count >>= 1;
	port = GUSP(gus, GF1DATALOW);
	spin_lock_irqsave(&gus->reg_lock, flags);
	outb(SNDRV_GF1_GW_DRAM_IO_LOW, gus->gf1.reg_regsel);
	mb();
	outw((unsigned short) addr, gus->gf1.reg_data16);
	mb();
	outb(SNDRV_GF1_GB_DRAM_IO_HIGH, gus->gf1.reg_regsel);
	mb();
	outb((unsigned char) (addr >> 16), gus->gf1.reg_data8);
	mb();
	outb(SNDRV_GF1_GW_DRAM_IO16, gus->gf1.reg_regsel);
	while (count--)
		outw(value, port);
	spin_unlock_irqrestore(&gus->reg_lock, flags);
}

#endif  /*  0  */

void snd_gf1_select_active_voices(struct snd_gus_card * gus)
{}

#ifdef CONFIG_SND_DEBUG

void snd_gf1_print_voice_registers(struct snd_gus_card * gus)
{}

#if 0

void snd_gf1_print_global_registers(struct snd_gus_card * gus)
{
	unsigned char global_mode = 0x00;

	printk(KERN_INFO " -G- GF1 active voices            = 0x%x\n", snd_gf1_i_look8(gus, SNDRV_GF1_GB_ACTIVE_VOICES));
	if (gus->interwave) {
		global_mode = snd_gf1_i_read8(gus, SNDRV_GF1_GB_GLOBAL_MODE);
		printk(KERN_INFO " -G- GF1 global mode              = 0x%x\n", global_mode);
	}
	if (global_mode & 0x02)	/* LFO enabled? */
		printk(KERN_INFO " -G- GF1 LFO base                 = 0x%x\n", snd_gf1_i_look16(gus, SNDRV_GF1_GW_LFO_BASE));
	printk(KERN_INFO " -G- GF1 voices IRQ read          = 0x%x\n", snd_gf1_i_look8(gus, SNDRV_GF1_GB_VOICES_IRQ_READ));
	printk(KERN_INFO " -G- GF1 DRAM DMA control         = 0x%x\n", snd_gf1_i_look8(gus, SNDRV_GF1_GB_DRAM_DMA_CONTROL));
	printk(KERN_INFO " -G- GF1 DRAM DMA high/low        = 0x%x/0x%x\n", snd_gf1_i_look8(gus, SNDRV_GF1_GB_DRAM_DMA_HIGH), snd_gf1_i_read16(gus, SNDRV_GF1_GW_DRAM_DMA_LOW));
	printk(KERN_INFO " -G- GF1 DRAM IO high/low         = 0x%x/0x%x\n", snd_gf1_i_look8(gus, SNDRV_GF1_GB_DRAM_IO_HIGH), snd_gf1_i_read16(gus, SNDRV_GF1_GW_DRAM_IO_LOW));
	if (!gus->interwave)
		printk(KERN_INFO " -G- GF1 record DMA control       = 0x%x\n", snd_gf1_i_look8(gus, SNDRV_GF1_GB_REC_DMA_CONTROL));
	printk(KERN_INFO " -G- GF1 DRAM IO 16               = 0x%x\n", snd_gf1_i_look16(gus, SNDRV_GF1_GW_DRAM_IO16));
	if (gus->gf1.enh_mode) {
		printk(KERN_INFO " -G- GFA1 memory config           = 0x%x\n", snd_gf1_i_look16(gus, SNDRV_GF1_GW_MEMORY_CONFIG));
		printk(KERN_INFO " -G- GFA1 memory control          = 0x%x\n", snd_gf1_i_look8(gus, SNDRV_GF1_GB_MEMORY_CONTROL));
		printk(KERN_INFO " -G- GFA1 FIFO record base        = 0x%x\n", snd_gf1_i_look16(gus, SNDRV_GF1_GW_FIFO_RECORD_BASE_ADDR));
		printk(KERN_INFO " -G- GFA1 FIFO playback base      = 0x%x\n", snd_gf1_i_look16(gus, SNDRV_GF1_GW_FIFO_PLAY_BASE_ADDR));
		printk(KERN_INFO " -G- GFA1 interleave control      = 0x%x\n", snd_gf1_i_look16(gus, SNDRV_GF1_GW_INTERLEAVE));
	}
}

void snd_gf1_print_setup_registers(struct snd_gus_card * gus)
{
	printk(KERN_INFO " -S- mix control                  = 0x%x\n", inb(GUSP(gus, MIXCNTRLREG)));
	printk(KERN_INFO " -S- IRQ status                   = 0x%x\n", inb(GUSP(gus, IRQSTAT)));
	printk(KERN_INFO " -S- timer control                = 0x%x\n", inb(GUSP(gus, TIMERCNTRL)));
	printk(KERN_INFO " -S- timer data                   = 0x%x\n", inb(GUSP(gus, TIMERDATA)));
	printk(KERN_INFO " -S- status read                  = 0x%x\n", inb(GUSP(gus, REGCNTRLS)));
	printk(KERN_INFO " -S- Sound Blaster control        = 0x%x\n", snd_gf1_i_look8(gus, SNDRV_GF1_GB_SOUND_BLASTER_CONTROL));
	printk(KERN_INFO " -S- AdLib timer 1/2              = 0x%x/0x%x\n", snd_gf1_i_look8(gus, SNDRV_GF1_GB_ADLIB_TIMER_1), snd_gf1_i_look8(gus, SNDRV_GF1_GB_ADLIB_TIMER_2));
	printk(KERN_INFO " -S- reset                        = 0x%x\n", snd_gf1_i_look8(gus, SNDRV_GF1_GB_RESET));
	if (gus->interwave) {
		printk(KERN_INFO " -S- compatibility                = 0x%x\n", snd_gf1_i_look8(gus, SNDRV_GF1_GB_COMPATIBILITY));
		printk(KERN_INFO " -S- decode control               = 0x%x\n", snd_gf1_i_look8(gus, SNDRV_GF1_GB_DECODE_CONTROL));
		printk(KERN_INFO " -S- version number               = 0x%x\n", snd_gf1_i_look8(gus, SNDRV_GF1_GB_VERSION_NUMBER));
		printk(KERN_INFO " -S- MPU-401 emul. control A/B    = 0x%x/0x%x\n", snd_gf1_i_look8(gus, SNDRV_GF1_GB_MPU401_CONTROL_A), snd_gf1_i_look8(gus, SNDRV_GF1_GB_MPU401_CONTROL_B));
		printk(KERN_INFO " -S- emulation IRQ                = 0x%x\n", snd_gf1_i_look8(gus, SNDRV_GF1_GB_EMULATION_IRQ));
	}
}

void snd_gf1_peek_print_block(struct snd_gus_card * gus, unsigned int addr, int count, int w_16bit)
{
	if (!w_16bit) {
		while (count-- > 0)
			printk(count > 0 ? "%02x:" : "%02x", snd_gf1_peek(gus, addr++));
	} else {
		while (count-- > 0) {
			printk(count > 0 ? "%04x:" : "%04x", snd_gf1_peek(gus, addr) | (snd_gf1_peek(gus, addr + 1) << 8));
			addr += 2;
		}
	}
}

#endif  /*  0  */

#endif