561b220a4d
Documentation,SA11xx UDA1341 driver,Generic drivers,MPU401 UART,OPL3 OPL4,Digigram VX core,I2C cs8427,I2C lib core,I2C tea6330t,L3 drivers AK4114 receiver,AK4117 receiver,PDAudioCF driver,PPC PMAC driver SPARC AMD7930 driver,SPARC cs4231 driver,Synth,Common EMU synth USB generic driver,USB USX2Y Replace kcalloc(1,..) with kzalloc(). Signed-off-by: Takashi Iwai <tiwai@suse.de>
292 lines
8.9 KiB
C
292 lines
8.9 KiB
C
/*
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* Driver for Sound Core PDAudioCF soundcard
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*
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* Copyright (c) 2003 by Jaroslav Kysela <perex@suse.cz>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <sound/driver.h>
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#include <linux/delay.h>
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#include <sound/core.h>
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#include <sound/info.h>
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#include "pdaudiocf.h"
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#include <sound/initval.h>
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/*
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*
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*/
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static unsigned char pdacf_ak4117_read(void *private_data, unsigned char reg)
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{
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pdacf_t *chip = private_data;
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unsigned long timeout;
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unsigned long flags;
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unsigned char res;
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spin_lock_irqsave(&chip->ak4117_lock, flags);
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timeout = 1000;
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while (pdacf_reg_read(chip, PDAUDIOCF_REG_SCR) & PDAUDIOCF_AK_SBP) {
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udelay(5);
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if (--timeout == 0) {
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spin_unlock_irqrestore(&chip->ak4117_lock, flags);
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snd_printk(KERN_ERR "AK4117 ready timeout (read)\n");
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return 0;
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}
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}
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pdacf_reg_write(chip, PDAUDIOCF_REG_AK_IFR, (u16)reg << 8);
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timeout = 1000;
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while (pdacf_reg_read(chip, PDAUDIOCF_REG_SCR) & PDAUDIOCF_AK_SBP) {
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udelay(5);
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if (--timeout == 0) {
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spin_unlock_irqrestore(&chip->ak4117_lock, flags);
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snd_printk(KERN_ERR "AK4117 read timeout (read2)\n");
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return 0;
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}
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}
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res = (unsigned char)pdacf_reg_read(chip, PDAUDIOCF_REG_AK_IFR);
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spin_unlock_irqrestore(&chip->ak4117_lock, flags);
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return res;
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}
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static void pdacf_ak4117_write(void *private_data, unsigned char reg, unsigned char val)
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{
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pdacf_t *chip = private_data;
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unsigned long timeout;
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unsigned long flags;
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spin_lock_irqsave(&chip->ak4117_lock, flags);
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timeout = 1000;
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while (inw(chip->port + PDAUDIOCF_REG_SCR) & PDAUDIOCF_AK_SBP) {
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udelay(5);
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if (--timeout == 0) {
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spin_unlock_irqrestore(&chip->ak4117_lock, flags);
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snd_printk(KERN_ERR "AK4117 ready timeout (write)\n");
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return;
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}
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}
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outw((u16)reg << 8 | val | (1<<13), chip->port + PDAUDIOCF_REG_AK_IFR);
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spin_unlock_irqrestore(&chip->ak4117_lock, flags);
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}
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#if 0
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void pdacf_dump(pdacf_t *chip)
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{
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printk("PDAUDIOCF DUMP (0x%lx):\n", chip->port);
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printk("WPD : 0x%x\n", inw(chip->port + PDAUDIOCF_REG_WDP));
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printk("RDP : 0x%x\n", inw(chip->port + PDAUDIOCF_REG_RDP));
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printk("TCR : 0x%x\n", inw(chip->port + PDAUDIOCF_REG_TCR));
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printk("SCR : 0x%x\n", inw(chip->port + PDAUDIOCF_REG_SCR));
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printk("ISR : 0x%x\n", inw(chip->port + PDAUDIOCF_REG_ISR));
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printk("IER : 0x%x\n", inw(chip->port + PDAUDIOCF_REG_IER));
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printk("AK_IFR : 0x%x\n", inw(chip->port + PDAUDIOCF_REG_AK_IFR));
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}
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#endif
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static int pdacf_reset(pdacf_t *chip, int powerdown)
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{
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u16 val;
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val = pdacf_reg_read(chip, PDAUDIOCF_REG_SCR);
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val |= PDAUDIOCF_PDN;
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val &= ~PDAUDIOCF_RECORD; /* for sure */
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pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val);
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udelay(5);
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val |= PDAUDIOCF_RST;
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pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val);
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udelay(200);
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val &= ~PDAUDIOCF_RST;
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pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val);
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udelay(5);
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if (!powerdown) {
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val &= ~PDAUDIOCF_PDN;
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pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val);
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udelay(200);
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}
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return 0;
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}
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void pdacf_reinit(pdacf_t *chip, int resume)
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{
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pdacf_reset(chip, 0);
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if (resume)
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pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, chip->suspend_reg_scr);
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snd_ak4117_reinit(chip->ak4117);
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pdacf_reg_write(chip, PDAUDIOCF_REG_TCR, chip->regmap[PDAUDIOCF_REG_TCR>>1]);
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pdacf_reg_write(chip, PDAUDIOCF_REG_IER, chip->regmap[PDAUDIOCF_REG_IER>>1]);
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}
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static void pdacf_proc_read(snd_info_entry_t * entry,
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snd_info_buffer_t * buffer)
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{
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pdacf_t *chip = entry->private_data;
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u16 tmp;
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snd_iprintf(buffer, "PDAudioCF\n\n");
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tmp = pdacf_reg_read(chip, PDAUDIOCF_REG_SCR);
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snd_iprintf(buffer, "FPGA revision : 0x%x\n", PDAUDIOCF_FPGAREV(tmp));
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}
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static void pdacf_proc_init(pdacf_t *chip)
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{
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snd_info_entry_t *entry;
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if (! snd_card_proc_new(chip->card, "pdaudiocf", &entry))
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snd_info_set_text_ops(entry, chip, 1024, pdacf_proc_read);
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}
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pdacf_t *snd_pdacf_create(snd_card_t *card)
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{
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pdacf_t *chip;
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chip = kzalloc(sizeof(*chip), GFP_KERNEL);
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if (chip == NULL)
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return NULL;
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chip->card = card;
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spin_lock_init(&chip->reg_lock);
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spin_lock_init(&chip->ak4117_lock);
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tasklet_init(&chip->tq, pdacf_tasklet, (unsigned long)chip);
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card->private_data = chip;
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pdacf_proc_init(chip);
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return chip;
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}
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static void snd_pdacf_ak4117_change(ak4117_t *ak4117, unsigned char c0, unsigned char c1)
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{
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pdacf_t *chip = ak4117->change_callback_private;
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unsigned long flags;
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u16 val;
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if (!(c0 & AK4117_UNLCK))
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return;
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spin_lock_irqsave(&chip->reg_lock, flags);
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val = chip->regmap[PDAUDIOCF_REG_SCR>>1];
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if (ak4117->rcs0 & AK4117_UNLCK)
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val |= PDAUDIOCF_BLUE_LED_OFF;
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else
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val &= ~PDAUDIOCF_BLUE_LED_OFF;
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pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val);
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spin_unlock_irqrestore(&chip->reg_lock, flags);
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}
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int snd_pdacf_ak4117_create(pdacf_t *chip)
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{
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int err;
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u16 val;
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/* design note: if we unmask PLL unlock, parity, valid, audio or auto bit interrupts */
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/* from AK4117 then INT1 pin from AK4117 will be high all time, because PCMCIA interrupts are */
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/* egde based and FPGA does logical OR for all interrupt sources, we cannot use these */
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/* high-rate sources */
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static unsigned char pgm[5] = {
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AK4117_XTL_24_576M | AK4117_EXCT, /* AK4117_REG_PWRDN */
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AK4117_CM_PLL_XTAL | AK4117_PKCS_128fs | AK4117_XCKS_128fs, /* AK4117_REQ_CLOCK */
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AK4117_EFH_1024LRCLK | AK4117_DIF_24R | AK4117_IPS, /* AK4117_REG_IO */
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0xff, /* AK4117_REG_INT0_MASK */
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AK4117_MAUTO | AK4117_MAUD | AK4117_MULK | AK4117_MPAR | AK4117_MV, /* AK4117_REG_INT1_MASK */
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};
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err = pdacf_reset(chip, 0);
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if (err < 0)
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return err;
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err = snd_ak4117_create(chip->card, pdacf_ak4117_read, pdacf_ak4117_write, pgm, chip, &chip->ak4117);
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if (err < 0)
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return err;
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val = pdacf_reg_read(chip, PDAUDIOCF_REG_TCR);
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#if 1 /* normal operation */
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val &= ~(PDAUDIOCF_ELIMAKMBIT|PDAUDIOCF_TESTDATASEL);
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#else /* debug */
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val |= PDAUDIOCF_ELIMAKMBIT;
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val &= ~PDAUDIOCF_TESTDATASEL;
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#endif
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pdacf_reg_write(chip, PDAUDIOCF_REG_TCR, val);
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/* setup the FPGA to match AK4117 setup */
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val = pdacf_reg_read(chip, PDAUDIOCF_REG_SCR);
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val &= ~(PDAUDIOCF_CLKDIV0 | PDAUDIOCF_CLKDIV1); /* use 24.576Mhz clock */
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val &= ~(PDAUDIOCF_RED_LED_OFF|PDAUDIOCF_BLUE_LED_OFF);
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val |= PDAUDIOCF_DATAFMT0 | PDAUDIOCF_DATAFMT1; /* 24-bit data */
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pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val);
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/* setup LEDs and IRQ */
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val = pdacf_reg_read(chip, PDAUDIOCF_REG_IER);
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val &= ~(PDAUDIOCF_IRQLVLEN0 | PDAUDIOCF_IRQLVLEN1);
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val &= ~(PDAUDIOCF_BLUEDUTY0 | PDAUDIOCF_REDDUTY0 | PDAUDIOCF_REDDUTY1);
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val |= PDAUDIOCF_BLUEDUTY1 | PDAUDIOCF_HALFRATE;
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val |= PDAUDIOCF_IRQOVREN | PDAUDIOCF_IRQAKMEN;
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pdacf_reg_write(chip, PDAUDIOCF_REG_IER, val);
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chip->ak4117->change_callback_private = chip;
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chip->ak4117->change_callback = snd_pdacf_ak4117_change;
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/* update LED status */
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snd_pdacf_ak4117_change(chip->ak4117, AK4117_UNLCK, 0);
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return 0;
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}
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void snd_pdacf_powerdown(pdacf_t *chip)
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{
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u16 val;
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val = pdacf_reg_read(chip, PDAUDIOCF_REG_SCR);
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chip->suspend_reg_scr = val;
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val |= PDAUDIOCF_RED_LED_OFF | PDAUDIOCF_BLUE_LED_OFF;
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pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val);
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/* disable interrupts, but use direct write to preserve old register value in chip->regmap */
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val = inw(chip->port + PDAUDIOCF_REG_IER);
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val &= ~(PDAUDIOCF_IRQOVREN|PDAUDIOCF_IRQAKMEN|PDAUDIOCF_IRQLVLEN0|PDAUDIOCF_IRQLVLEN1);
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outw(val, chip->port + PDAUDIOCF_REG_IER);
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pdacf_reset(chip, 1);
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}
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#ifdef CONFIG_PM
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int snd_pdacf_suspend(snd_card_t *card, pm_message_t state)
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{
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pdacf_t *chip = card->pm_private_data;
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u16 val;
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snd_pcm_suspend_all(chip->pcm);
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/* disable interrupts, but use direct write to preserve old register value in chip->regmap */
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val = inw(chip->port + PDAUDIOCF_REG_IER);
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val &= ~(PDAUDIOCF_IRQOVREN|PDAUDIOCF_IRQAKMEN|PDAUDIOCF_IRQLVLEN0|PDAUDIOCF_IRQLVLEN1);
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outw(val, chip->port + PDAUDIOCF_REG_IER);
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chip->chip_status |= PDAUDIOCF_STAT_IS_SUSPENDED; /* ignore interrupts from now */
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snd_pdacf_powerdown(chip);
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return 0;
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}
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static inline int check_signal(pdacf_t *chip)
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{
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return (chip->ak4117->rcs0 & AK4117_UNLCK) == 0;
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}
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int snd_pdacf_resume(snd_card_t *card)
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{
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pdacf_t *chip = card->pm_private_data;
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int timeout = 40;
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pdacf_reinit(chip, 1);
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/* wait for AK4117's PLL */
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while (timeout-- > 0 &&
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(snd_ak4117_external_rate(chip->ak4117) <= 0 || !check_signal(chip)))
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mdelay(1);
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chip->chip_status &= ~PDAUDIOCF_STAT_IS_SUSPENDED;
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return 0;
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}
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#endif
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