Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Driver for Sound Core PDAudioCF soundcard |
| 3 | * |
Jaroslav Kysela | c1017a4 | 2007-10-15 09:50:19 +0200 | [diff] [blame] | 4 | * Copyright (c) 2003 by Jaroslav Kysela <perex@perex.cz> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | */ |
| 20 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 21 | #include <linux/delay.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 22 | #include <linux/slab.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 23 | #include <sound/core.h> |
| 24 | #include <sound/info.h> |
| 25 | #include "pdaudiocf.h" |
| 26 | #include <sound/initval.h> |
| 27 | |
| 28 | /* |
| 29 | * |
| 30 | */ |
| 31 | static unsigned char pdacf_ak4117_read(void *private_data, unsigned char reg) |
| 32 | { |
Takashi Iwai | db13154 | 2005-11-17 15:07:38 +0100 | [diff] [blame] | 33 | struct snd_pdacf *chip = private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 34 | unsigned long timeout; |
| 35 | unsigned long flags; |
| 36 | unsigned char res; |
| 37 | |
| 38 | spin_lock_irqsave(&chip->ak4117_lock, flags); |
| 39 | timeout = 1000; |
| 40 | while (pdacf_reg_read(chip, PDAUDIOCF_REG_SCR) & PDAUDIOCF_AK_SBP) { |
| 41 | udelay(5); |
| 42 | if (--timeout == 0) { |
| 43 | spin_unlock_irqrestore(&chip->ak4117_lock, flags); |
| 44 | snd_printk(KERN_ERR "AK4117 ready timeout (read)\n"); |
| 45 | return 0; |
| 46 | } |
| 47 | } |
| 48 | pdacf_reg_write(chip, PDAUDIOCF_REG_AK_IFR, (u16)reg << 8); |
| 49 | timeout = 1000; |
| 50 | while (pdacf_reg_read(chip, PDAUDIOCF_REG_SCR) & PDAUDIOCF_AK_SBP) { |
| 51 | udelay(5); |
| 52 | if (--timeout == 0) { |
| 53 | spin_unlock_irqrestore(&chip->ak4117_lock, flags); |
| 54 | snd_printk(KERN_ERR "AK4117 read timeout (read2)\n"); |
| 55 | return 0; |
| 56 | } |
| 57 | } |
| 58 | res = (unsigned char)pdacf_reg_read(chip, PDAUDIOCF_REG_AK_IFR); |
| 59 | spin_unlock_irqrestore(&chip->ak4117_lock, flags); |
| 60 | return res; |
| 61 | } |
| 62 | |
| 63 | static void pdacf_ak4117_write(void *private_data, unsigned char reg, unsigned char val) |
| 64 | { |
Takashi Iwai | db13154 | 2005-11-17 15:07:38 +0100 | [diff] [blame] | 65 | struct snd_pdacf *chip = private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 66 | unsigned long timeout; |
| 67 | unsigned long flags; |
| 68 | |
| 69 | spin_lock_irqsave(&chip->ak4117_lock, flags); |
| 70 | timeout = 1000; |
| 71 | while (inw(chip->port + PDAUDIOCF_REG_SCR) & PDAUDIOCF_AK_SBP) { |
| 72 | udelay(5); |
| 73 | if (--timeout == 0) { |
| 74 | spin_unlock_irqrestore(&chip->ak4117_lock, flags); |
| 75 | snd_printk(KERN_ERR "AK4117 ready timeout (write)\n"); |
| 76 | return; |
| 77 | } |
| 78 | } |
| 79 | outw((u16)reg << 8 | val | (1<<13), chip->port + PDAUDIOCF_REG_AK_IFR); |
| 80 | spin_unlock_irqrestore(&chip->ak4117_lock, flags); |
| 81 | } |
| 82 | |
| 83 | #if 0 |
Takashi Iwai | db13154 | 2005-11-17 15:07:38 +0100 | [diff] [blame] | 84 | void pdacf_dump(struct snd_pdacf *chip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 85 | { |
Takashi Iwai | 2ebfb8e | 2009-02-05 16:11:58 +0100 | [diff] [blame] | 86 | printk(KERN_DEBUG "PDAUDIOCF DUMP (0x%lx):\n", chip->port); |
| 87 | printk(KERN_DEBUG "WPD : 0x%x\n", |
| 88 | inw(chip->port + PDAUDIOCF_REG_WDP)); |
| 89 | printk(KERN_DEBUG "RDP : 0x%x\n", |
| 90 | inw(chip->port + PDAUDIOCF_REG_RDP)); |
| 91 | printk(KERN_DEBUG "TCR : 0x%x\n", |
| 92 | inw(chip->port + PDAUDIOCF_REG_TCR)); |
| 93 | printk(KERN_DEBUG "SCR : 0x%x\n", |
| 94 | inw(chip->port + PDAUDIOCF_REG_SCR)); |
| 95 | printk(KERN_DEBUG "ISR : 0x%x\n", |
| 96 | inw(chip->port + PDAUDIOCF_REG_ISR)); |
| 97 | printk(KERN_DEBUG "IER : 0x%x\n", |
| 98 | inw(chip->port + PDAUDIOCF_REG_IER)); |
| 99 | printk(KERN_DEBUG "AK_IFR : 0x%x\n", |
| 100 | inw(chip->port + PDAUDIOCF_REG_AK_IFR)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 101 | } |
| 102 | #endif |
| 103 | |
Takashi Iwai | db13154 | 2005-11-17 15:07:38 +0100 | [diff] [blame] | 104 | static int pdacf_reset(struct snd_pdacf *chip, int powerdown) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 105 | { |
| 106 | u16 val; |
| 107 | |
| 108 | val = pdacf_reg_read(chip, PDAUDIOCF_REG_SCR); |
| 109 | val |= PDAUDIOCF_PDN; |
| 110 | val &= ~PDAUDIOCF_RECORD; /* for sure */ |
| 111 | pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val); |
| 112 | udelay(5); |
| 113 | val |= PDAUDIOCF_RST; |
| 114 | pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val); |
| 115 | udelay(200); |
| 116 | val &= ~PDAUDIOCF_RST; |
| 117 | pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val); |
| 118 | udelay(5); |
| 119 | if (!powerdown) { |
| 120 | val &= ~PDAUDIOCF_PDN; |
| 121 | pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val); |
| 122 | udelay(200); |
| 123 | } |
| 124 | return 0; |
| 125 | } |
| 126 | |
Takashi Iwai | db13154 | 2005-11-17 15:07:38 +0100 | [diff] [blame] | 127 | void pdacf_reinit(struct snd_pdacf *chip, int resume) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 128 | { |
| 129 | pdacf_reset(chip, 0); |
| 130 | if (resume) |
| 131 | pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, chip->suspend_reg_scr); |
| 132 | snd_ak4117_reinit(chip->ak4117); |
| 133 | pdacf_reg_write(chip, PDAUDIOCF_REG_TCR, chip->regmap[PDAUDIOCF_REG_TCR>>1]); |
| 134 | pdacf_reg_write(chip, PDAUDIOCF_REG_IER, chip->regmap[PDAUDIOCF_REG_IER>>1]); |
| 135 | } |
| 136 | |
Takashi Iwai | db13154 | 2005-11-17 15:07:38 +0100 | [diff] [blame] | 137 | static void pdacf_proc_read(struct snd_info_entry * entry, |
| 138 | struct snd_info_buffer *buffer) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 139 | { |
Takashi Iwai | db13154 | 2005-11-17 15:07:38 +0100 | [diff] [blame] | 140 | struct snd_pdacf *chip = entry->private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 141 | u16 tmp; |
| 142 | |
| 143 | snd_iprintf(buffer, "PDAudioCF\n\n"); |
| 144 | tmp = pdacf_reg_read(chip, PDAUDIOCF_REG_SCR); |
| 145 | snd_iprintf(buffer, "FPGA revision : 0x%x\n", PDAUDIOCF_FPGAREV(tmp)); |
| 146 | |
| 147 | } |
| 148 | |
Takashi Iwai | db13154 | 2005-11-17 15:07:38 +0100 | [diff] [blame] | 149 | static void pdacf_proc_init(struct snd_pdacf *chip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 150 | { |
Takashi Iwai | db13154 | 2005-11-17 15:07:38 +0100 | [diff] [blame] | 151 | struct snd_info_entry *entry; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 152 | |
| 153 | if (! snd_card_proc_new(chip->card, "pdaudiocf", &entry)) |
Takashi Iwai | bf85020 | 2006-04-28 15:13:41 +0200 | [diff] [blame] | 154 | snd_info_set_text_ops(entry, chip, pdacf_proc_read); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 155 | } |
| 156 | |
Takashi Iwai | db13154 | 2005-11-17 15:07:38 +0100 | [diff] [blame] | 157 | struct snd_pdacf *snd_pdacf_create(struct snd_card *card) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 158 | { |
Takashi Iwai | db13154 | 2005-11-17 15:07:38 +0100 | [diff] [blame] | 159 | struct snd_pdacf *chip; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 160 | |
Takashi Iwai | 561b220 | 2005-09-09 14:22:34 +0200 | [diff] [blame] | 161 | chip = kzalloc(sizeof(*chip), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 162 | if (chip == NULL) |
| 163 | return NULL; |
| 164 | chip->card = card; |
Takashi Iwai | 3b73cfe | 2014-09-10 14:58:59 +0200 | [diff] [blame] | 165 | mutex_init(&chip->reg_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 166 | spin_lock_init(&chip->ak4117_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 167 | card->private_data = chip; |
| 168 | |
| 169 | pdacf_proc_init(chip); |
| 170 | return chip; |
| 171 | } |
| 172 | |
Takashi Iwai | db13154 | 2005-11-17 15:07:38 +0100 | [diff] [blame] | 173 | static void snd_pdacf_ak4117_change(struct ak4117 *ak4117, unsigned char c0, unsigned char c1) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 174 | { |
Takashi Iwai | db13154 | 2005-11-17 15:07:38 +0100 | [diff] [blame] | 175 | struct snd_pdacf *chip = ak4117->change_callback_private; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 176 | u16 val; |
| 177 | |
| 178 | if (!(c0 & AK4117_UNLCK)) |
| 179 | return; |
Takashi Iwai | 3b73cfe | 2014-09-10 14:58:59 +0200 | [diff] [blame] | 180 | mutex_lock(&chip->reg_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 181 | val = chip->regmap[PDAUDIOCF_REG_SCR>>1]; |
| 182 | if (ak4117->rcs0 & AK4117_UNLCK) |
| 183 | val |= PDAUDIOCF_BLUE_LED_OFF; |
| 184 | else |
| 185 | val &= ~PDAUDIOCF_BLUE_LED_OFF; |
| 186 | pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val); |
Takashi Iwai | 3b73cfe | 2014-09-10 14:58:59 +0200 | [diff] [blame] | 187 | mutex_unlock(&chip->reg_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 188 | } |
| 189 | |
Takashi Iwai | db13154 | 2005-11-17 15:07:38 +0100 | [diff] [blame] | 190 | int snd_pdacf_ak4117_create(struct snd_pdacf *chip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 191 | { |
| 192 | int err; |
| 193 | u16 val; |
| 194 | /* design note: if we unmask PLL unlock, parity, valid, audio or auto bit interrupts */ |
| 195 | /* from AK4117 then INT1 pin from AK4117 will be high all time, because PCMCIA interrupts are */ |
| 196 | /* egde based and FPGA does logical OR for all interrupt sources, we cannot use these */ |
| 197 | /* high-rate sources */ |
| 198 | static unsigned char pgm[5] = { |
| 199 | AK4117_XTL_24_576M | AK4117_EXCT, /* AK4117_REG_PWRDN */ |
| 200 | AK4117_CM_PLL_XTAL | AK4117_PKCS_128fs | AK4117_XCKS_128fs, /* AK4117_REQ_CLOCK */ |
| 201 | AK4117_EFH_1024LRCLK | AK4117_DIF_24R | AK4117_IPS, /* AK4117_REG_IO */ |
| 202 | 0xff, /* AK4117_REG_INT0_MASK */ |
| 203 | AK4117_MAUTO | AK4117_MAUD | AK4117_MULK | AK4117_MPAR | AK4117_MV, /* AK4117_REG_INT1_MASK */ |
| 204 | }; |
| 205 | |
| 206 | err = pdacf_reset(chip, 0); |
| 207 | if (err < 0) |
| 208 | return err; |
| 209 | err = snd_ak4117_create(chip->card, pdacf_ak4117_read, pdacf_ak4117_write, pgm, chip, &chip->ak4117); |
| 210 | if (err < 0) |
| 211 | return err; |
| 212 | |
| 213 | val = pdacf_reg_read(chip, PDAUDIOCF_REG_TCR); |
| 214 | #if 1 /* normal operation */ |
| 215 | val &= ~(PDAUDIOCF_ELIMAKMBIT|PDAUDIOCF_TESTDATASEL); |
| 216 | #else /* debug */ |
| 217 | val |= PDAUDIOCF_ELIMAKMBIT; |
| 218 | val &= ~PDAUDIOCF_TESTDATASEL; |
| 219 | #endif |
| 220 | pdacf_reg_write(chip, PDAUDIOCF_REG_TCR, val); |
| 221 | |
| 222 | /* setup the FPGA to match AK4117 setup */ |
| 223 | val = pdacf_reg_read(chip, PDAUDIOCF_REG_SCR); |
| 224 | val &= ~(PDAUDIOCF_CLKDIV0 | PDAUDIOCF_CLKDIV1); /* use 24.576Mhz clock */ |
| 225 | val &= ~(PDAUDIOCF_RED_LED_OFF|PDAUDIOCF_BLUE_LED_OFF); |
| 226 | val |= PDAUDIOCF_DATAFMT0 | PDAUDIOCF_DATAFMT1; /* 24-bit data */ |
| 227 | pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val); |
| 228 | |
| 229 | /* setup LEDs and IRQ */ |
| 230 | val = pdacf_reg_read(chip, PDAUDIOCF_REG_IER); |
| 231 | val &= ~(PDAUDIOCF_IRQLVLEN0 | PDAUDIOCF_IRQLVLEN1); |
| 232 | val &= ~(PDAUDIOCF_BLUEDUTY0 | PDAUDIOCF_REDDUTY0 | PDAUDIOCF_REDDUTY1); |
| 233 | val |= PDAUDIOCF_BLUEDUTY1 | PDAUDIOCF_HALFRATE; |
| 234 | val |= PDAUDIOCF_IRQOVREN | PDAUDIOCF_IRQAKMEN; |
| 235 | pdacf_reg_write(chip, PDAUDIOCF_REG_IER, val); |
| 236 | |
| 237 | chip->ak4117->change_callback_private = chip; |
| 238 | chip->ak4117->change_callback = snd_pdacf_ak4117_change; |
| 239 | |
| 240 | /* update LED status */ |
| 241 | snd_pdacf_ak4117_change(chip->ak4117, AK4117_UNLCK, 0); |
| 242 | |
| 243 | return 0; |
| 244 | } |
| 245 | |
Takashi Iwai | db13154 | 2005-11-17 15:07:38 +0100 | [diff] [blame] | 246 | void snd_pdacf_powerdown(struct snd_pdacf *chip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 247 | { |
| 248 | u16 val; |
| 249 | |
| 250 | val = pdacf_reg_read(chip, PDAUDIOCF_REG_SCR); |
| 251 | chip->suspend_reg_scr = val; |
| 252 | val |= PDAUDIOCF_RED_LED_OFF | PDAUDIOCF_BLUE_LED_OFF; |
| 253 | pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, val); |
| 254 | /* disable interrupts, but use direct write to preserve old register value in chip->regmap */ |
| 255 | val = inw(chip->port + PDAUDIOCF_REG_IER); |
| 256 | val &= ~(PDAUDIOCF_IRQOVREN|PDAUDIOCF_IRQAKMEN|PDAUDIOCF_IRQLVLEN0|PDAUDIOCF_IRQLVLEN1); |
| 257 | outw(val, chip->port + PDAUDIOCF_REG_IER); |
| 258 | pdacf_reset(chip, 1); |
| 259 | } |
| 260 | |
| 261 | #ifdef CONFIG_PM |
| 262 | |
Takashi Iwai | 2cb1331 | 2012-07-02 15:42:33 +0200 | [diff] [blame] | 263 | int snd_pdacf_suspend(struct snd_pdacf *chip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 264 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 265 | u16 val; |
| 266 | |
Takashi Iwai | e4f163d | 2005-11-17 17:15:58 +0100 | [diff] [blame] | 267 | snd_power_change_state(chip->card, SNDRV_CTL_POWER_D3hot); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 268 | snd_pcm_suspend_all(chip->pcm); |
| 269 | /* disable interrupts, but use direct write to preserve old register value in chip->regmap */ |
| 270 | val = inw(chip->port + PDAUDIOCF_REG_IER); |
| 271 | val &= ~(PDAUDIOCF_IRQOVREN|PDAUDIOCF_IRQAKMEN|PDAUDIOCF_IRQLVLEN0|PDAUDIOCF_IRQLVLEN1); |
| 272 | outw(val, chip->port + PDAUDIOCF_REG_IER); |
| 273 | chip->chip_status |= PDAUDIOCF_STAT_IS_SUSPENDED; /* ignore interrupts from now */ |
| 274 | snd_pdacf_powerdown(chip); |
| 275 | return 0; |
| 276 | } |
| 277 | |
Takashi Iwai | db13154 | 2005-11-17 15:07:38 +0100 | [diff] [blame] | 278 | static inline int check_signal(struct snd_pdacf *chip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 279 | { |
| 280 | return (chip->ak4117->rcs0 & AK4117_UNLCK) == 0; |
| 281 | } |
| 282 | |
Takashi Iwai | e4f163d | 2005-11-17 17:15:58 +0100 | [diff] [blame] | 283 | int snd_pdacf_resume(struct snd_pdacf *chip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 284 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 285 | int timeout = 40; |
| 286 | |
| 287 | pdacf_reinit(chip, 1); |
| 288 | /* wait for AK4117's PLL */ |
| 289 | while (timeout-- > 0 && |
| 290 | (snd_ak4117_external_rate(chip->ak4117) <= 0 || !check_signal(chip))) |
| 291 | mdelay(1); |
| 292 | chip->chip_status &= ~PDAUDIOCF_STAT_IS_SUSPENDED; |
Takashi Iwai | e4f163d | 2005-11-17 17:15:58 +0100 | [diff] [blame] | 293 | snd_power_change_state(chip->card, SNDRV_CTL_POWER_D0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 294 | return 0; |
| 295 | } |
| 296 | #endif |