pcmcia/pdaudiocf/pdaudiocf_core.c

20 	struct snd_pdacf *chip = private_data;
25 	spin_lock_irqsave(&chip->ak4117_lock, flags);
27 	while (pdacf_reg_read(chip, PDAUDIOCF_REG_SCR) & PDAUDIOCF_AK_SBP) {
30 			spin_unlock_irqrestore(&chip->ak4117_lock, flags);
35 	pdacf_reg_write(chip, PDAUDIOCF_REG_AK_IFR, (u16)reg << 8);
37 	while (pdacf_reg_read(chip, PDAUDIOCF_REG_SCR) & PDAUDIOCF_AK_SBP) {
40 			spin_unlock_irqrestore(&chip->ak4117_lock, flags);
45 	res = (unsigned char)pdacf_reg_read(chip, PDAUDIOCF_REG_AK_IFR);
46 	spin_unlock_irqrestore(&chip->ak4117_lock, flags);
52 	struct snd_pdacf *chip = private_data;
56 	spin_lock_irqsave(&chip->ak4117_lock, flags);
58 	while (inw(chip->port + PDAUDIOCF_REG_SCR) & PDAUDIOCF_AK_SBP) {
61 			spin_unlock_irqrestore(&chip->ak4117_lock, flags);
66 	outw((u16)reg << 8 | val | (1<<13), chip->port + PDAUDIOCF_REG_AK_IFR);
67 	spin_unlock_irqrestore(&chip->ak4117_lock, flags);
71 void pdacf_dump(struct snd_pdacf *chip)
73 	printk(KERN_DEBUG "PDAUDIOCF DUMP (0x%lx):\n", chip->port);
75 	       inw(chip->port + PDAUDIOCF_REG_WDP));
77 	       inw(chip->port + PDAUDIOCF_REG_RDP));
79 	       inw(chip->port + PDAUDIOCF_REG_TCR));
81 	       inw(chip->port + PDAUDIOCF_REG_SCR));
83 	       inw(chip->port + PDAUDIOCF_REG_ISR));
85 	       inw(chip->port + PDAUDIOCF_REG_IER));
87 	       inw(chip->port + PDAUDIOCF_REG_AK_IFR));
91 static int pdacf_reset(struct snd_pdacf *chip, int powerdown)
95 	val = pdacf_reg_read(chip, PDAUDIOCF_REG_SCR);
98 	pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val);
101 	pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val);
104 	pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val);
108 		pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val);
114 void pdacf_reinit(struct snd_pdacf *chip, int resume)
116 	pdacf_reset(chip, 0);
118 		pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, chip->suspend_reg_scr);
119 	snd_ak4117_reinit(chip->ak4117);
120 	pdacf_reg_write(chip, PDAUDIOCF_REG_TCR, chip->regmap[PDAUDIOCF_REG_TCR>>1]);
121 	pdacf_reg_write(chip, PDAUDIOCF_REG_IER, chip->regmap[PDAUDIOCF_REG_IER>>1]);
127 	struct snd_pdacf *chip = entry->private_data;
131 	tmp = pdacf_reg_read(chip, PDAUDIOCF_REG_SCR);
136 static void pdacf_proc_init(struct snd_pdacf *chip)
138 	snd_card_ro_proc_new(chip->card, "pdaudiocf", chip, pdacf_proc_read);
143 	struct snd_pdacf *chip;
145 	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
146 	if (chip == NULL)
148 	chip->card = card;
149 	mutex_init(&chip->reg_lock);
150 	spin_lock_init(&chip->ak4117_lock);
151 	card->private_data = chip;
153 	pdacf_proc_init(chip);
154 	return chip;
159 	struct snd_pdacf *chip = ak4117->change_callback_private;
164 	mutex_lock(&chip->reg_lock);
165 	val = chip->regmap[PDAUDIOCF_REG_SCR>>1];
170 	pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val);
171 	mutex_unlock(&chip->reg_lock);
174 int snd_pdacf_ak4117_create(struct snd_pdacf *chip)
190 	err = pdacf_reset(chip, 0);
193 	err = snd_ak4117_create(chip->card, pdacf_ak4117_read, pdacf_ak4117_write, pgm, chip, &chip->ak4117);
197 	val = pdacf_reg_read(chip, PDAUDIOCF_REG_TCR);
204 	pdacf_reg_write(chip, PDAUDIOCF_REG_TCR, val);
207 	val = pdacf_reg_read(chip, PDAUDIOCF_REG_SCR);
211 	pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val);
214 	val = pdacf_reg_read(chip, PDAUDIOCF_REG_IER);
219 	pdacf_reg_write(chip, PDAUDIOCF_REG_IER, val);
221 	chip->ak4117->change_callback_private = chip;
222 	chip->ak4117->change_callback = snd_pdacf_ak4117_change;
225 	snd_pdacf_ak4117_change(chip->ak4117, AK4117_UNLCK, 0);
230 void snd_pdacf_powerdown(struct snd_pdacf *chip)
234 	val = pdacf_reg_read(chip, PDAUDIOCF_REG_SCR);
235 	chip->suspend_reg_scr = val;
237 	pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val);
238 	/* disable interrupts, but use direct write to preserve old register value in chip->regmap */
239 	val = inw(chip->port + PDAUDIOCF_REG_IER);
241 	outw(val, chip->port + PDAUDIOCF_REG_IER);
242 	pdacf_reset(chip, 1);
247 int snd_pdacf_suspend(struct snd_pdacf *chip)
251 	snd_power_change_state(chip->card, SNDRV_CTL_POWER_D3hot);
252 	/* disable interrupts, but use direct write to preserve old register value in chip->regmap */
253 	val = inw(chip->port + PDAUDIOCF_REG_IER);
255 	outw(val, chip->port + PDAUDIOCF_REG_IER);
256 	chip->chip_status |= PDAUDIOCF_STAT_IS_SUSPENDED;	/* ignore interrupts from now */
257 	snd_pdacf_powerdown(chip);
261 static inline int check_signal(struct snd_pdacf *chip)
263 	return (chip->ak4117->rcs0 & AK4117_UNLCK) == 0;
266 int snd_pdacf_resume(struct snd_pdacf *chip)
270 	pdacf_reinit(chip, 1);
273 	       (snd_ak4117_external_rate(chip->ak4117) <= 0 || !check_signal(chip)))
275 	chip->chip_status &= ~PDAUDIOCF_STAT_IS_SUSPENDED;
276 	snd_power_change_state(chip->card, SNDRV_CTL_POWER_D0);