linux/sound/pci/emu10k1/io.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *  Copyright (c) by Jaroslav Kysela <[email protected]>
 *                   Lee Revell <[email protected]>
 *                   James Courtier-Dutton <[email protected]>
 *                   Oswald Buddenhagen <[email protected]>
 *                   Creative Labs, Inc.
 *
 *  Routines for control of EMU10K1 chips
 */

#include <linux/time.h>
#include <sound/core.h>
#include <sound/emu10k1.h>
#include <linux/delay.h>
#include <linux/export.h>
#include "p17v.h"

static inline bool check_ptr_reg(struct snd_emu10k1 *emu, unsigned int reg)
{ … }

unsigned int snd_emu10k1_ptr_read(struct snd_emu10k1 * emu, unsigned int reg, unsigned int chn)
{ … }

EXPORT_SYMBOL(…);

void snd_emu10k1_ptr_write(struct snd_emu10k1 *emu, unsigned int reg, unsigned int chn, unsigned int data)
{ … }

EXPORT_SYMBOL(…);

void snd_emu10k1_ptr_write_multiple(struct snd_emu10k1 *emu, unsigned int chn, ...)
{ … }

EXPORT_SYMBOL(…);

unsigned int snd_emu10k1_ptr20_read(struct snd_emu10k1 * emu, 
					  unsigned int reg, 
					  unsigned int chn)
{ … }

void snd_emu10k1_ptr20_write(struct snd_emu10k1 *emu, 
				   unsigned int reg, 
				   unsigned int chn, 
				   unsigned int data)
{ … }

int snd_emu10k1_spi_write(struct snd_emu10k1 * emu,
				   unsigned int data)
{ … }

/* The ADC does not support i2c read, so only write is implemented */
int snd_emu10k1_i2c_write(struct snd_emu10k1 *emu,
				u32 reg,
				u32 value)
{ … }

static void snd_emu1010_fpga_write_locked(struct snd_emu10k1 *emu, u32 reg, u32 value)
{ … }

void snd_emu1010_fpga_write(struct snd_emu10k1 *emu, u32 reg, u32 value)
{ … }

void snd_emu1010_fpga_write_lock(struct snd_emu10k1 *emu, u32 reg, u32 value)
{ … }

void snd_emu1010_fpga_read(struct snd_emu10k1 *emu, u32 reg, u32 *value)
{ … }

/* Each Destination has one and only one Source,
 * but one Source can feed any number of Destinations simultaneously.
 */
void snd_emu1010_fpga_link_dst_src_write(struct snd_emu10k1 *emu, u32 dst, u32 src)
{ … }

u32 snd_emu1010_fpga_link_dst_src_read(struct snd_emu10k1 *emu, u32 dst)
{ … }

int snd_emu1010_get_raw_rate(struct snd_emu10k1 *emu, u8 src)
{ … }

void snd_emu1010_update_clock(struct snd_emu10k1 *emu)
{ … }

void snd_emu1010_load_firmware_entry(struct snd_emu10k1 *emu, int dock,
				     const struct firmware *fw_entry)
{ … }

void snd_emu10k1_intr_enable(struct snd_emu10k1 *emu, unsigned int intrenb)
{ … }

void snd_emu10k1_intr_disable(struct snd_emu10k1 *emu, unsigned int intrenb)
{ … }

void snd_emu10k1_voice_intr_enable(struct snd_emu10k1 *emu, unsigned int voicenum)
{ … }

void snd_emu10k1_voice_intr_disable(struct snd_emu10k1 *emu, unsigned int voicenum)
{ … }

void snd_emu10k1_voice_intr_ack(struct snd_emu10k1 *emu, unsigned int voicenum)
{ … }

void snd_emu10k1_voice_half_loop_intr_enable(struct snd_emu10k1 *emu, unsigned int voicenum)
{ … }

void snd_emu10k1_voice_half_loop_intr_disable(struct snd_emu10k1 *emu, unsigned int voicenum)
{ … }

void snd_emu10k1_voice_half_loop_intr_ack(struct snd_emu10k1 *emu, unsigned int voicenum)
{ … }

#if 0
void snd_emu10k1_voice_set_loop_stop(struct snd_emu10k1 *emu, unsigned int voicenum)
{
	unsigned long flags;
	unsigned int sol;

	spin_lock_irqsave(&emu->emu_lock, flags);
	if (voicenum >= 32) {
		outl(SOLEH << 16, emu->port + PTR);
		sol = inl(emu->port + DATA);
		sol |= 1 << (voicenum - 32);
	} else {
		outl(SOLEL << 16, emu->port + PTR);
		sol = inl(emu->port + DATA);
		sol |= 1 << voicenum;
	}
	outl(sol, emu->port + DATA);
	spin_unlock_irqrestore(&emu->emu_lock, flags);
}

void snd_emu10k1_voice_clear_loop_stop(struct snd_emu10k1 *emu, unsigned int voicenum)
{
	unsigned long flags;
	unsigned int sol;

	spin_lock_irqsave(&emu->emu_lock, flags);
	if (voicenum >= 32) {
		outl(SOLEH << 16, emu->port + PTR);
		sol = inl(emu->port + DATA);
		sol &= ~(1 << (voicenum - 32));
	} else {
		outl(SOLEL << 16, emu->port + PTR);
		sol = inl(emu->port + DATA);
		sol &= ~(1 << voicenum);
	}
	outl(sol, emu->port + DATA);
	spin_unlock_irqrestore(&emu->emu_lock, flags);
}
#endif

void snd_emu10k1_voice_set_loop_stop_multiple(struct snd_emu10k1 *emu, u64 voices)
{ … }

void snd_emu10k1_voice_clear_loop_stop_multiple(struct snd_emu10k1 *emu, u64 voices)
{ … }

int snd_emu10k1_voice_clear_loop_stop_multiple_atomic(struct snd_emu10k1 *emu, u64 voices)
{ … }

void snd_emu10k1_wait(struct snd_emu10k1 *emu, unsigned int wait)
{ … }

unsigned short snd_emu10k1_ac97_read(struct snd_ac97 *ac97, unsigned short reg)
{ … }

void snd_emu10k1_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short data)
{ … }