13a66d387SMark Brown /* 23a66d387SMark Brown * wm2000.c -- WM2000 ALSA Soc Audio driver 33a66d387SMark Brown * 4656baaebSMark Brown * Copyright 2008-2011 Wolfson Microelectronics PLC. 53a66d387SMark Brown * 63a66d387SMark Brown * Author: Mark Brown <broonie@opensource.wolfsonmicro.com> 73a66d387SMark Brown * 83a66d387SMark Brown * This program is free software; you can redistribute it and/or modify 93a66d387SMark Brown * it under the terms of the GNU General Public License version 2 as 103a66d387SMark Brown * published by the Free Software Foundation. 113a66d387SMark Brown * 123a66d387SMark Brown * The download image for the WM2000 will be requested as 133a66d387SMark Brown * 'wm2000_anc.bin' by default (overridable via platform data) at 143a66d387SMark Brown * runtime and is expected to be in flat binary format. This is 153a66d387SMark Brown * generated by Wolfson configuration tools and includes 163a66d387SMark Brown * system-specific callibration information. If supplied as a 173a66d387SMark Brown * sequence of ASCII-encoded hexidecimal bytes this can be converted 183a66d387SMark Brown * into a flat binary with a command such as this on the command line: 193a66d387SMark Brown * 203a66d387SMark Brown * perl -e 'while (<>) { s/[\r\n]+// ; printf("%c", hex($_)); }' 213a66d387SMark Brown * < file > wm2000_anc.bin 223a66d387SMark Brown */ 233a66d387SMark Brown 243a66d387SMark Brown #include <linux/module.h> 253a66d387SMark Brown #include <linux/moduleparam.h> 263a66d387SMark Brown #include <linux/kernel.h> 273a66d387SMark Brown #include <linux/init.h> 283a66d387SMark Brown #include <linux/firmware.h> 293a66d387SMark Brown #include <linux/delay.h> 303a66d387SMark Brown #include <linux/pm.h> 313a66d387SMark Brown #include <linux/i2c.h> 328aa1fe81SMark Brown #include <linux/regmap.h> 333a66d387SMark Brown #include <linux/debugfs.h> 345a0e3ad6STejun Heo #include <linux/slab.h> 353a66d387SMark Brown #include <sound/core.h> 363a66d387SMark Brown #include <sound/pcm.h> 373a66d387SMark Brown #include <sound/pcm_params.h> 383a66d387SMark Brown #include <sound/soc.h> 393a66d387SMark Brown #include <sound/initval.h> 403a66d387SMark Brown #include <sound/tlv.h> 413a66d387SMark Brown 423a66d387SMark Brown #include <sound/wm2000.h> 433a66d387SMark Brown 443a66d387SMark Brown #include "wm2000.h" 453a66d387SMark Brown 463a66d387SMark Brown enum wm2000_anc_mode { 473a66d387SMark Brown ANC_ACTIVE = 0, 483a66d387SMark Brown ANC_BYPASS = 1, 493a66d387SMark Brown ANC_STANDBY = 2, 503a66d387SMark Brown ANC_OFF = 3, 513a66d387SMark Brown }; 523a66d387SMark Brown 533a66d387SMark Brown struct wm2000_priv { 543a66d387SMark Brown struct i2c_client *i2c; 558aa1fe81SMark Brown struct regmap *regmap; 563a66d387SMark Brown 573a66d387SMark Brown enum wm2000_anc_mode anc_mode; 583a66d387SMark Brown 593a66d387SMark Brown unsigned int anc_active:1; 603a66d387SMark Brown unsigned int anc_eng_ena:1; 613a66d387SMark Brown unsigned int spk_ena:1; 623a66d387SMark Brown 633a66d387SMark Brown unsigned int mclk_div:1; 643a66d387SMark Brown unsigned int speech_clarity:1; 653a66d387SMark Brown 663a66d387SMark Brown int anc_download_size; 673a66d387SMark Brown char *anc_download; 683a66d387SMark Brown }; 693a66d387SMark Brown 703a66d387SMark Brown static int wm2000_write(struct i2c_client *i2c, unsigned int reg, 713a66d387SMark Brown unsigned int value) 723a66d387SMark Brown { 738aa1fe81SMark Brown struct wm2000_priv *wm2000 = i2c_get_clientdata(i2c); 748aa1fe81SMark Brown return regmap_write(wm2000->regmap, reg, value); 753a66d387SMark Brown } 763a66d387SMark Brown 773a66d387SMark Brown static unsigned int wm2000_read(struct i2c_client *i2c, unsigned int r) 783a66d387SMark Brown { 798aa1fe81SMark Brown struct wm2000_priv *wm2000 = i2c_get_clientdata(i2c); 808aa1fe81SMark Brown unsigned int val; 813a66d387SMark Brown int ret; 823a66d387SMark Brown 838aa1fe81SMark Brown ret = regmap_read(wm2000->regmap, r, &val); 848aa1fe81SMark Brown if (ret < 0) 858aa1fe81SMark Brown return -1; 863a66d387SMark Brown 878aa1fe81SMark Brown return val; 883a66d387SMark Brown } 893a66d387SMark Brown 903a66d387SMark Brown static void wm2000_reset(struct wm2000_priv *wm2000) 913a66d387SMark Brown { 923a66d387SMark Brown struct i2c_client *i2c = wm2000->i2c; 933a66d387SMark Brown 943a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_CTL2, WM2000_ANC_ENG_CLR); 953a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_CTL2, WM2000_RAM_CLR); 963a66d387SMark Brown wm2000_write(i2c, WM2000_REG_ID1, 0); 973a66d387SMark Brown 983a66d387SMark Brown wm2000->anc_mode = ANC_OFF; 993a66d387SMark Brown } 1003a66d387SMark Brown 1013a66d387SMark Brown static int wm2000_poll_bit(struct i2c_client *i2c, 1023ff1ec27SMark Brown unsigned int reg, u8 mask) 1033a66d387SMark Brown { 1043ff1ec27SMark Brown int timeout = 4000; 1053a66d387SMark Brown int val; 1063a66d387SMark Brown 1073a66d387SMark Brown val = wm2000_read(i2c, reg); 1083a66d387SMark Brown 1093a66d387SMark Brown while (!(val & mask) && --timeout) { 1103a66d387SMark Brown msleep(1); 1113a66d387SMark Brown val = wm2000_read(i2c, reg); 1123a66d387SMark Brown } 1133a66d387SMark Brown 1143a66d387SMark Brown if (timeout == 0) 1153a66d387SMark Brown return 0; 1163a66d387SMark Brown else 1173a66d387SMark Brown return 1; 1183a66d387SMark Brown } 1193a66d387SMark Brown 1203a66d387SMark Brown static int wm2000_power_up(struct i2c_client *i2c, int analogue) 1213a66d387SMark Brown { 1223a66d387SMark Brown struct wm2000_priv *wm2000 = dev_get_drvdata(&i2c->dev); 1233ff1ec27SMark Brown int ret; 1243a66d387SMark Brown 1253a66d387SMark Brown BUG_ON(wm2000->anc_mode != ANC_OFF); 1263a66d387SMark Brown 1273a66d387SMark Brown dev_dbg(&i2c->dev, "Beginning power up\n"); 1283a66d387SMark Brown 1293a66d387SMark Brown if (!wm2000->mclk_div) { 1303a66d387SMark Brown dev_dbg(&i2c->dev, "Disabling MCLK divider\n"); 1313a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_CTL2, 1323a66d387SMark Brown WM2000_MCLK_DIV2_ENA_CLR); 1333a66d387SMark Brown } else { 1343a66d387SMark Brown dev_dbg(&i2c->dev, "Enabling MCLK divider\n"); 1353a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_CTL2, 1363a66d387SMark Brown WM2000_MCLK_DIV2_ENA_SET); 1373a66d387SMark Brown } 1383a66d387SMark Brown 1393a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_CTL2, WM2000_ANC_ENG_CLR); 1403a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_CTL2, WM2000_ANC_ENG_SET); 1413a66d387SMark Brown 1423a66d387SMark Brown /* Wait for ANC engine to become ready */ 1433a66d387SMark Brown if (!wm2000_poll_bit(i2c, WM2000_REG_ANC_STAT, 1443ff1ec27SMark Brown WM2000_ANC_ENG_IDLE)) { 1453a66d387SMark Brown dev_err(&i2c->dev, "ANC engine failed to reset\n"); 1463a66d387SMark Brown return -ETIMEDOUT; 1473a66d387SMark Brown } 1483a66d387SMark Brown 1493a66d387SMark Brown if (!wm2000_poll_bit(i2c, WM2000_REG_SYS_STATUS, 1503ff1ec27SMark Brown WM2000_STATUS_BOOT_COMPLETE)) { 1513a66d387SMark Brown dev_err(&i2c->dev, "ANC engine failed to initialise\n"); 1523a66d387SMark Brown return -ETIMEDOUT; 1533a66d387SMark Brown } 1543a66d387SMark Brown 1553a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_CTL2, WM2000_RAM_SET); 1563a66d387SMark Brown 1573a66d387SMark Brown /* Open code download of the data since it is the only bulk 1583a66d387SMark Brown * write we do. */ 1593a66d387SMark Brown dev_dbg(&i2c->dev, "Downloading %d bytes\n", 1603a66d387SMark Brown wm2000->anc_download_size - 2); 1613a66d387SMark Brown 1623a66d387SMark Brown ret = i2c_master_send(i2c, wm2000->anc_download, 1633a66d387SMark Brown wm2000->anc_download_size); 1643a66d387SMark Brown if (ret < 0) { 1653a66d387SMark Brown dev_err(&i2c->dev, "i2c_transfer() failed: %d\n", ret); 1663a66d387SMark Brown return ret; 1673a66d387SMark Brown } 1683a66d387SMark Brown if (ret != wm2000->anc_download_size) { 1693a66d387SMark Brown dev_err(&i2c->dev, "i2c_transfer() failed, %d != %d\n", 1703a66d387SMark Brown ret, wm2000->anc_download_size); 1713a66d387SMark Brown return -EIO; 1723a66d387SMark Brown } 1733a66d387SMark Brown 1743a66d387SMark Brown dev_dbg(&i2c->dev, "Download complete\n"); 1753a66d387SMark Brown 1763a66d387SMark Brown if (analogue) { 1773ff1ec27SMark Brown wm2000_write(i2c, WM2000_REG_ANA_VMID_PU_TIME, 248 / 4); 1783a66d387SMark Brown 1793a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_MODE_CNTRL, 1803a66d387SMark Brown WM2000_MODE_ANA_SEQ_INCLUDE | 1813a66d387SMark Brown WM2000_MODE_MOUSE_ENABLE | 1823a66d387SMark Brown WM2000_MODE_THERMAL_ENABLE); 1833a66d387SMark Brown } else { 1843a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_MODE_CNTRL, 1853a66d387SMark Brown WM2000_MODE_MOUSE_ENABLE | 1863a66d387SMark Brown WM2000_MODE_THERMAL_ENABLE); 1873a66d387SMark Brown } 1883a66d387SMark Brown 1893a66d387SMark Brown ret = wm2000_read(i2c, WM2000_REG_SPEECH_CLARITY); 1903a66d387SMark Brown if (wm2000->speech_clarity) 1913a66d387SMark Brown ret &= ~WM2000_SPEECH_CLARITY; 1923a66d387SMark Brown else 1933a66d387SMark Brown ret |= WM2000_SPEECH_CLARITY; 1943a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SPEECH_CLARITY, ret); 1953a66d387SMark Brown 1963a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_START0, 0x33); 1973a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_START1, 0x02); 1983a66d387SMark Brown 1993a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_CTL2, WM2000_ANC_INT_N_CLR); 2003a66d387SMark Brown 2013a66d387SMark Brown if (!wm2000_poll_bit(i2c, WM2000_REG_SYS_STATUS, 2023ff1ec27SMark Brown WM2000_STATUS_MOUSE_ACTIVE)) { 2033ff1ec27SMark Brown dev_err(&i2c->dev, "Timed out waiting for device\n"); 2043a66d387SMark Brown return -ETIMEDOUT; 2053a66d387SMark Brown } 2063a66d387SMark Brown 2073a66d387SMark Brown dev_dbg(&i2c->dev, "ANC active\n"); 2083a66d387SMark Brown if (analogue) 2093a66d387SMark Brown dev_dbg(&i2c->dev, "Analogue active\n"); 2103a66d387SMark Brown wm2000->anc_mode = ANC_ACTIVE; 2113a66d387SMark Brown 2123a66d387SMark Brown return 0; 2133a66d387SMark Brown } 2143a66d387SMark Brown 2153a66d387SMark Brown static int wm2000_power_down(struct i2c_client *i2c, int analogue) 2163a66d387SMark Brown { 2173a66d387SMark Brown struct wm2000_priv *wm2000 = dev_get_drvdata(&i2c->dev); 2183a66d387SMark Brown 2193a66d387SMark Brown if (analogue) { 2203ff1ec27SMark Brown wm2000_write(i2c, WM2000_REG_ANA_VMID_PD_TIME, 248 / 4); 2213a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_MODE_CNTRL, 2223a66d387SMark Brown WM2000_MODE_ANA_SEQ_INCLUDE | 2233a66d387SMark Brown WM2000_MODE_POWER_DOWN); 2243a66d387SMark Brown } else { 2253a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_MODE_CNTRL, 2263a66d387SMark Brown WM2000_MODE_POWER_DOWN); 2273a66d387SMark Brown } 2283a66d387SMark Brown 2293a66d387SMark Brown if (!wm2000_poll_bit(i2c, WM2000_REG_SYS_STATUS, 2303ff1ec27SMark Brown WM2000_STATUS_POWER_DOWN_COMPLETE)) { 2313a66d387SMark Brown dev_err(&i2c->dev, "Timeout waiting for ANC power down\n"); 2323a66d387SMark Brown return -ETIMEDOUT; 2333a66d387SMark Brown } 2343a66d387SMark Brown 2353a66d387SMark Brown if (!wm2000_poll_bit(i2c, WM2000_REG_ANC_STAT, 2363ff1ec27SMark Brown WM2000_ANC_ENG_IDLE)) { 2373a66d387SMark Brown dev_err(&i2c->dev, "Timeout waiting for ANC engine idle\n"); 2383a66d387SMark Brown return -ETIMEDOUT; 2393a66d387SMark Brown } 2403a66d387SMark Brown 2413a66d387SMark Brown dev_dbg(&i2c->dev, "powered off\n"); 2423a66d387SMark Brown wm2000->anc_mode = ANC_OFF; 2433a66d387SMark Brown 2443a66d387SMark Brown return 0; 2453a66d387SMark Brown } 2463a66d387SMark Brown 2473a66d387SMark Brown static int wm2000_enter_bypass(struct i2c_client *i2c, int analogue) 2483a66d387SMark Brown { 2493a66d387SMark Brown struct wm2000_priv *wm2000 = dev_get_drvdata(&i2c->dev); 2503a66d387SMark Brown 2513a66d387SMark Brown BUG_ON(wm2000->anc_mode != ANC_ACTIVE); 2523a66d387SMark Brown 2533a66d387SMark Brown if (analogue) { 2543a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_MODE_CNTRL, 2553a66d387SMark Brown WM2000_MODE_ANA_SEQ_INCLUDE | 2563a66d387SMark Brown WM2000_MODE_THERMAL_ENABLE | 2573a66d387SMark Brown WM2000_MODE_BYPASS_ENTRY); 2583a66d387SMark Brown } else { 2593a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_MODE_CNTRL, 2603a66d387SMark Brown WM2000_MODE_THERMAL_ENABLE | 2613a66d387SMark Brown WM2000_MODE_BYPASS_ENTRY); 2623a66d387SMark Brown } 2633a66d387SMark Brown 2643a66d387SMark Brown if (!wm2000_poll_bit(i2c, WM2000_REG_SYS_STATUS, 2653ff1ec27SMark Brown WM2000_STATUS_ANC_DISABLED)) { 2663a66d387SMark Brown dev_err(&i2c->dev, "Timeout waiting for ANC disable\n"); 2673a66d387SMark Brown return -ETIMEDOUT; 2683a66d387SMark Brown } 2693a66d387SMark Brown 2703a66d387SMark Brown if (!wm2000_poll_bit(i2c, WM2000_REG_ANC_STAT, 2713ff1ec27SMark Brown WM2000_ANC_ENG_IDLE)) { 2723a66d387SMark Brown dev_err(&i2c->dev, "Timeout waiting for ANC engine idle\n"); 2733a66d387SMark Brown return -ETIMEDOUT; 2743a66d387SMark Brown } 2753a66d387SMark Brown 2763a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_CTL1, WM2000_SYS_STBY); 2773a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_CTL2, WM2000_RAM_CLR); 2783a66d387SMark Brown 2793a66d387SMark Brown wm2000->anc_mode = ANC_BYPASS; 2803a66d387SMark Brown dev_dbg(&i2c->dev, "bypass enabled\n"); 2813a66d387SMark Brown 2823a66d387SMark Brown return 0; 2833a66d387SMark Brown } 2843a66d387SMark Brown 2853a66d387SMark Brown static int wm2000_exit_bypass(struct i2c_client *i2c, int analogue) 2863a66d387SMark Brown { 2873a66d387SMark Brown struct wm2000_priv *wm2000 = dev_get_drvdata(&i2c->dev); 2883a66d387SMark Brown 2893a66d387SMark Brown BUG_ON(wm2000->anc_mode != ANC_BYPASS); 2903a66d387SMark Brown 2913a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_CTL1, 0); 2923a66d387SMark Brown 2933a66d387SMark Brown if (analogue) { 2943a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_MODE_CNTRL, 2953a66d387SMark Brown WM2000_MODE_ANA_SEQ_INCLUDE | 2963a66d387SMark Brown WM2000_MODE_MOUSE_ENABLE | 2973a66d387SMark Brown WM2000_MODE_THERMAL_ENABLE); 2983a66d387SMark Brown } else { 2993a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_MODE_CNTRL, 3003a66d387SMark Brown WM2000_MODE_MOUSE_ENABLE | 3013a66d387SMark Brown WM2000_MODE_THERMAL_ENABLE); 3023a66d387SMark Brown } 3033a66d387SMark Brown 3043a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_CTL2, WM2000_RAM_SET); 3053a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_CTL2, WM2000_ANC_INT_N_CLR); 3063a66d387SMark Brown 3073a66d387SMark Brown if (!wm2000_poll_bit(i2c, WM2000_REG_SYS_STATUS, 3083ff1ec27SMark Brown WM2000_STATUS_MOUSE_ACTIVE)) { 3093a66d387SMark Brown dev_err(&i2c->dev, "Timed out waiting for MOUSE\n"); 3103a66d387SMark Brown return -ETIMEDOUT; 3113a66d387SMark Brown } 3123a66d387SMark Brown 3133a66d387SMark Brown wm2000->anc_mode = ANC_ACTIVE; 3143a66d387SMark Brown dev_dbg(&i2c->dev, "MOUSE active\n"); 3153a66d387SMark Brown 3163a66d387SMark Brown return 0; 3173a66d387SMark Brown } 3183a66d387SMark Brown 3193a66d387SMark Brown static int wm2000_enter_standby(struct i2c_client *i2c, int analogue) 3203a66d387SMark Brown { 3213a66d387SMark Brown struct wm2000_priv *wm2000 = dev_get_drvdata(&i2c->dev); 3223a66d387SMark Brown 3233a66d387SMark Brown BUG_ON(wm2000->anc_mode != ANC_ACTIVE); 3243a66d387SMark Brown 3253a66d387SMark Brown if (analogue) { 3263ff1ec27SMark Brown wm2000_write(i2c, WM2000_REG_ANA_VMID_PD_TIME, 248 / 4); 3273a66d387SMark Brown 3283a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_MODE_CNTRL, 3293a66d387SMark Brown WM2000_MODE_ANA_SEQ_INCLUDE | 3303a66d387SMark Brown WM2000_MODE_THERMAL_ENABLE | 3313a66d387SMark Brown WM2000_MODE_STANDBY_ENTRY); 3323a66d387SMark Brown } else { 3333a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_MODE_CNTRL, 3343a66d387SMark Brown WM2000_MODE_THERMAL_ENABLE | 3353a66d387SMark Brown WM2000_MODE_STANDBY_ENTRY); 3363a66d387SMark Brown } 3373a66d387SMark Brown 3383a66d387SMark Brown if (!wm2000_poll_bit(i2c, WM2000_REG_SYS_STATUS, 3393ff1ec27SMark Brown WM2000_STATUS_ANC_DISABLED)) { 3403a66d387SMark Brown dev_err(&i2c->dev, 3413a66d387SMark Brown "Timed out waiting for ANC disable after 1ms\n"); 3423a66d387SMark Brown return -ETIMEDOUT; 3433a66d387SMark Brown } 3443a66d387SMark Brown 3453ff1ec27SMark Brown if (!wm2000_poll_bit(i2c, WM2000_REG_ANC_STAT, WM2000_ANC_ENG_IDLE)) { 3463a66d387SMark Brown dev_err(&i2c->dev, 3473ff1ec27SMark Brown "Timed out waiting for standby\n"); 3483a66d387SMark Brown return -ETIMEDOUT; 3493a66d387SMark Brown } 3503a66d387SMark Brown 3513a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_CTL1, WM2000_SYS_STBY); 3523a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_CTL2, WM2000_RAM_CLR); 3533a66d387SMark Brown 3543a66d387SMark Brown wm2000->anc_mode = ANC_STANDBY; 3553a66d387SMark Brown dev_dbg(&i2c->dev, "standby\n"); 3563a66d387SMark Brown if (analogue) 3573a66d387SMark Brown dev_dbg(&i2c->dev, "Analogue disabled\n"); 3583a66d387SMark Brown 3593a66d387SMark Brown return 0; 3603a66d387SMark Brown } 3613a66d387SMark Brown 3623a66d387SMark Brown static int wm2000_exit_standby(struct i2c_client *i2c, int analogue) 3633a66d387SMark Brown { 3643a66d387SMark Brown struct wm2000_priv *wm2000 = dev_get_drvdata(&i2c->dev); 3653a66d387SMark Brown 3663a66d387SMark Brown BUG_ON(wm2000->anc_mode != ANC_STANDBY); 3673a66d387SMark Brown 3683a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_CTL1, 0); 3693a66d387SMark Brown 3703a66d387SMark Brown if (analogue) { 3713ff1ec27SMark Brown wm2000_write(i2c, WM2000_REG_ANA_VMID_PU_TIME, 248 / 4); 3723a66d387SMark Brown 3733a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_MODE_CNTRL, 3743a66d387SMark Brown WM2000_MODE_ANA_SEQ_INCLUDE | 3753a66d387SMark Brown WM2000_MODE_THERMAL_ENABLE | 3763a66d387SMark Brown WM2000_MODE_MOUSE_ENABLE); 3773a66d387SMark Brown } else { 3783a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_MODE_CNTRL, 3793a66d387SMark Brown WM2000_MODE_THERMAL_ENABLE | 3803a66d387SMark Brown WM2000_MODE_MOUSE_ENABLE); 3813a66d387SMark Brown } 3823a66d387SMark Brown 3833a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_CTL2, WM2000_RAM_SET); 3843a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_CTL2, WM2000_ANC_INT_N_CLR); 3853a66d387SMark Brown 3863a66d387SMark Brown if (!wm2000_poll_bit(i2c, WM2000_REG_SYS_STATUS, 3873ff1ec27SMark Brown WM2000_STATUS_MOUSE_ACTIVE)) { 3883ff1ec27SMark Brown dev_err(&i2c->dev, "Timed out waiting for MOUSE\n"); 3893a66d387SMark Brown return -ETIMEDOUT; 3903a66d387SMark Brown } 3913a66d387SMark Brown 3923a66d387SMark Brown wm2000->anc_mode = ANC_ACTIVE; 3933a66d387SMark Brown dev_dbg(&i2c->dev, "MOUSE active\n"); 3943a66d387SMark Brown if (analogue) 3953a66d387SMark Brown dev_dbg(&i2c->dev, "Analogue enabled\n"); 3963a66d387SMark Brown 3973a66d387SMark Brown return 0; 3983a66d387SMark Brown } 3993a66d387SMark Brown 4003a66d387SMark Brown typedef int (*wm2000_mode_fn)(struct i2c_client *i2c, int analogue); 4013a66d387SMark Brown 4023a66d387SMark Brown static struct { 4033a66d387SMark Brown enum wm2000_anc_mode source; 4043a66d387SMark Brown enum wm2000_anc_mode dest; 4053a66d387SMark Brown int analogue; 4063a66d387SMark Brown wm2000_mode_fn step[2]; 4073a66d387SMark Brown } anc_transitions[] = { 4083a66d387SMark Brown { 4093a66d387SMark Brown .source = ANC_OFF, 4103a66d387SMark Brown .dest = ANC_ACTIVE, 4113a66d387SMark Brown .analogue = 1, 4123a66d387SMark Brown .step = { 4133a66d387SMark Brown wm2000_power_up, 4143a66d387SMark Brown }, 4153a66d387SMark Brown }, 4163a66d387SMark Brown { 4173a66d387SMark Brown .source = ANC_OFF, 4183a66d387SMark Brown .dest = ANC_STANDBY, 4193a66d387SMark Brown .step = { 4203a66d387SMark Brown wm2000_power_up, 4213a66d387SMark Brown wm2000_enter_standby, 4223a66d387SMark Brown }, 4233a66d387SMark Brown }, 4243a66d387SMark Brown { 4253a66d387SMark Brown .source = ANC_OFF, 4263a66d387SMark Brown .dest = ANC_BYPASS, 4273a66d387SMark Brown .analogue = 1, 4283a66d387SMark Brown .step = { 4293a66d387SMark Brown wm2000_power_up, 4303a66d387SMark Brown wm2000_enter_bypass, 4313a66d387SMark Brown }, 4323a66d387SMark Brown }, 4333a66d387SMark Brown { 4343a66d387SMark Brown .source = ANC_ACTIVE, 4353a66d387SMark Brown .dest = ANC_BYPASS, 4363a66d387SMark Brown .analogue = 1, 4373a66d387SMark Brown .step = { 4383a66d387SMark Brown wm2000_enter_bypass, 4393a66d387SMark Brown }, 4403a66d387SMark Brown }, 4413a66d387SMark Brown { 4423a66d387SMark Brown .source = ANC_ACTIVE, 4433a66d387SMark Brown .dest = ANC_STANDBY, 4443a66d387SMark Brown .analogue = 1, 4453a66d387SMark Brown .step = { 4463a66d387SMark Brown wm2000_enter_standby, 4473a66d387SMark Brown }, 4483a66d387SMark Brown }, 4493a66d387SMark Brown { 4503a66d387SMark Brown .source = ANC_ACTIVE, 4513a66d387SMark Brown .dest = ANC_OFF, 4523a66d387SMark Brown .analogue = 1, 4533a66d387SMark Brown .step = { 4543a66d387SMark Brown wm2000_power_down, 4553a66d387SMark Brown }, 4563a66d387SMark Brown }, 4573a66d387SMark Brown { 4583a66d387SMark Brown .source = ANC_BYPASS, 4593a66d387SMark Brown .dest = ANC_ACTIVE, 4603a66d387SMark Brown .analogue = 1, 4613a66d387SMark Brown .step = { 4623a66d387SMark Brown wm2000_exit_bypass, 4633a66d387SMark Brown }, 4643a66d387SMark Brown }, 4653a66d387SMark Brown { 4663a66d387SMark Brown .source = ANC_BYPASS, 4673a66d387SMark Brown .dest = ANC_STANDBY, 4683a66d387SMark Brown .analogue = 1, 4693a66d387SMark Brown .step = { 4703a66d387SMark Brown wm2000_exit_bypass, 4713a66d387SMark Brown wm2000_enter_standby, 4723a66d387SMark Brown }, 4733a66d387SMark Brown }, 4743a66d387SMark Brown { 4753a66d387SMark Brown .source = ANC_BYPASS, 4763a66d387SMark Brown .dest = ANC_OFF, 4773a66d387SMark Brown .step = { 4783a66d387SMark Brown wm2000_exit_bypass, 4793a66d387SMark Brown wm2000_power_down, 4803a66d387SMark Brown }, 4813a66d387SMark Brown }, 4823a66d387SMark Brown { 4833a66d387SMark Brown .source = ANC_STANDBY, 4843a66d387SMark Brown .dest = ANC_ACTIVE, 4853a66d387SMark Brown .analogue = 1, 4863a66d387SMark Brown .step = { 4873a66d387SMark Brown wm2000_exit_standby, 4883a66d387SMark Brown }, 4893a66d387SMark Brown }, 4903a66d387SMark Brown { 4913a66d387SMark Brown .source = ANC_STANDBY, 4923a66d387SMark Brown .dest = ANC_BYPASS, 4933a66d387SMark Brown .analogue = 1, 4943a66d387SMark Brown .step = { 4953a66d387SMark Brown wm2000_exit_standby, 4963a66d387SMark Brown wm2000_enter_bypass, 4973a66d387SMark Brown }, 4983a66d387SMark Brown }, 4993a66d387SMark Brown { 5003a66d387SMark Brown .source = ANC_STANDBY, 5013a66d387SMark Brown .dest = ANC_OFF, 5023a66d387SMark Brown .step = { 5033a66d387SMark Brown wm2000_exit_standby, 5043a66d387SMark Brown wm2000_power_down, 5053a66d387SMark Brown }, 5063a66d387SMark Brown }, 5073a66d387SMark Brown }; 5083a66d387SMark Brown 5093a66d387SMark Brown static int wm2000_anc_transition(struct wm2000_priv *wm2000, 5103a66d387SMark Brown enum wm2000_anc_mode mode) 5113a66d387SMark Brown { 5123a66d387SMark Brown struct i2c_client *i2c = wm2000->i2c; 5133a66d387SMark Brown int i, j; 5143a66d387SMark Brown int ret; 5153a66d387SMark Brown 5163a66d387SMark Brown if (wm2000->anc_mode == mode) 5173a66d387SMark Brown return 0; 5183a66d387SMark Brown 5193a66d387SMark Brown for (i = 0; i < ARRAY_SIZE(anc_transitions); i++) 5203a66d387SMark Brown if (anc_transitions[i].source == wm2000->anc_mode && 5213a66d387SMark Brown anc_transitions[i].dest == mode) 5223a66d387SMark Brown break; 5233a66d387SMark Brown if (i == ARRAY_SIZE(anc_transitions)) { 5243a66d387SMark Brown dev_err(&i2c->dev, "No transition for %d->%d\n", 5253a66d387SMark Brown wm2000->anc_mode, mode); 5263a66d387SMark Brown return -EINVAL; 5273a66d387SMark Brown } 5283a66d387SMark Brown 5293a66d387SMark Brown for (j = 0; j < ARRAY_SIZE(anc_transitions[j].step); j++) { 5303a66d387SMark Brown if (!anc_transitions[i].step[j]) 5313a66d387SMark Brown break; 5323a66d387SMark Brown ret = anc_transitions[i].step[j](i2c, 5333a66d387SMark Brown anc_transitions[i].analogue); 5343a66d387SMark Brown if (ret != 0) 5353a66d387SMark Brown return ret; 5363a66d387SMark Brown } 5373a66d387SMark Brown 5383a66d387SMark Brown return 0; 5393a66d387SMark Brown } 5403a66d387SMark Brown 5413a66d387SMark Brown static int wm2000_anc_set_mode(struct wm2000_priv *wm2000) 5423a66d387SMark Brown { 5433a66d387SMark Brown struct i2c_client *i2c = wm2000->i2c; 5443a66d387SMark Brown enum wm2000_anc_mode mode; 5453a66d387SMark Brown 5463a66d387SMark Brown if (wm2000->anc_eng_ena && wm2000->spk_ena) 5473a66d387SMark Brown if (wm2000->anc_active) 5483a66d387SMark Brown mode = ANC_ACTIVE; 5493a66d387SMark Brown else 5503a66d387SMark Brown mode = ANC_BYPASS; 5513a66d387SMark Brown else 5523a66d387SMark Brown mode = ANC_STANDBY; 5533a66d387SMark Brown 5543a66d387SMark Brown dev_dbg(&i2c->dev, "Set mode %d (enabled %d, mute %d, active %d)\n", 5553a66d387SMark Brown mode, wm2000->anc_eng_ena, !wm2000->spk_ena, 5563a66d387SMark Brown wm2000->anc_active); 5573a66d387SMark Brown 5583a66d387SMark Brown return wm2000_anc_transition(wm2000, mode); 5593a66d387SMark Brown } 5603a66d387SMark Brown 5613a66d387SMark Brown static int wm2000_anc_mode_get(struct snd_kcontrol *kcontrol, 5623a66d387SMark Brown struct snd_ctl_elem_value *ucontrol) 5633a66d387SMark Brown { 5644911ccdbSMark Brown struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); 5654911ccdbSMark Brown struct wm2000_priv *wm2000 = dev_get_drvdata(codec->dev); 5663a66d387SMark Brown 5673a66d387SMark Brown ucontrol->value.enumerated.item[0] = wm2000->anc_active; 5683a66d387SMark Brown 5693a66d387SMark Brown return 0; 5703a66d387SMark Brown } 5713a66d387SMark Brown 5723a66d387SMark Brown static int wm2000_anc_mode_put(struct snd_kcontrol *kcontrol, 5733a66d387SMark Brown struct snd_ctl_elem_value *ucontrol) 5743a66d387SMark Brown { 5754911ccdbSMark Brown struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); 5764911ccdbSMark Brown struct wm2000_priv *wm2000 = dev_get_drvdata(codec->dev); 5773a66d387SMark Brown int anc_active = ucontrol->value.enumerated.item[0]; 5783a66d387SMark Brown 5793a66d387SMark Brown if (anc_active > 1) 5803a66d387SMark Brown return -EINVAL; 5813a66d387SMark Brown 5823a66d387SMark Brown wm2000->anc_active = anc_active; 5833a66d387SMark Brown 5843a66d387SMark Brown return wm2000_anc_set_mode(wm2000); 5853a66d387SMark Brown } 5863a66d387SMark Brown 5873a66d387SMark Brown static int wm2000_speaker_get(struct snd_kcontrol *kcontrol, 5883a66d387SMark Brown struct snd_ctl_elem_value *ucontrol) 5893a66d387SMark Brown { 5904911ccdbSMark Brown struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); 5914911ccdbSMark Brown struct wm2000_priv *wm2000 = dev_get_drvdata(codec->dev); 5923a66d387SMark Brown 5933a66d387SMark Brown ucontrol->value.enumerated.item[0] = wm2000->spk_ena; 5943a66d387SMark Brown 5953a66d387SMark Brown return 0; 5963a66d387SMark Brown } 5973a66d387SMark Brown 5983a66d387SMark Brown static int wm2000_speaker_put(struct snd_kcontrol *kcontrol, 5993a66d387SMark Brown struct snd_ctl_elem_value *ucontrol) 6003a66d387SMark Brown { 6014911ccdbSMark Brown struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); 6024911ccdbSMark Brown struct wm2000_priv *wm2000 = dev_get_drvdata(codec->dev); 6033a66d387SMark Brown int val = ucontrol->value.enumerated.item[0]; 6043a66d387SMark Brown 6053a66d387SMark Brown if (val > 1) 6063a66d387SMark Brown return -EINVAL; 6073a66d387SMark Brown 6083a66d387SMark Brown wm2000->spk_ena = val; 6093a66d387SMark Brown 6103a66d387SMark Brown return wm2000_anc_set_mode(wm2000); 6113a66d387SMark Brown } 6123a66d387SMark Brown 6133a66d387SMark Brown static const struct snd_kcontrol_new wm2000_controls[] = { 6143a66d387SMark Brown SOC_SINGLE_BOOL_EXT("WM2000 ANC Switch", 0, 6153a66d387SMark Brown wm2000_anc_mode_get, 6163a66d387SMark Brown wm2000_anc_mode_put), 6173a66d387SMark Brown SOC_SINGLE_BOOL_EXT("WM2000 Switch", 0, 6183a66d387SMark Brown wm2000_speaker_get, 6193a66d387SMark Brown wm2000_speaker_put), 6203a66d387SMark Brown }; 6213a66d387SMark Brown 6223a66d387SMark Brown static int wm2000_anc_power_event(struct snd_soc_dapm_widget *w, 6233a66d387SMark Brown struct snd_kcontrol *kcontrol, int event) 6243a66d387SMark Brown { 6254911ccdbSMark Brown struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); 6264911ccdbSMark Brown struct wm2000_priv *wm2000 = dev_get_drvdata(codec->dev); 6273a66d387SMark Brown 6283a66d387SMark Brown if (SND_SOC_DAPM_EVENT_ON(event)) 6293a66d387SMark Brown wm2000->anc_eng_ena = 1; 6303a66d387SMark Brown 6313a66d387SMark Brown if (SND_SOC_DAPM_EVENT_OFF(event)) 6323a66d387SMark Brown wm2000->anc_eng_ena = 0; 6333a66d387SMark Brown 6343a66d387SMark Brown return wm2000_anc_set_mode(wm2000); 6353a66d387SMark Brown } 6363a66d387SMark Brown 6373a66d387SMark Brown static const struct snd_soc_dapm_widget wm2000_dapm_widgets[] = { 6383a66d387SMark Brown /* Externally visible pins */ 6394911ccdbSMark Brown SND_SOC_DAPM_OUTPUT("SPKN"), 6404911ccdbSMark Brown SND_SOC_DAPM_OUTPUT("SPKP"), 6413a66d387SMark Brown 6424911ccdbSMark Brown SND_SOC_DAPM_INPUT("LINN"), 6434911ccdbSMark Brown SND_SOC_DAPM_INPUT("LINP"), 6443a66d387SMark Brown 6453a66d387SMark Brown SND_SOC_DAPM_PGA_E("ANC Engine", SND_SOC_NOPM, 0, 0, NULL, 0, 6463a66d387SMark Brown wm2000_anc_power_event, 6473a66d387SMark Brown SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), 6483a66d387SMark Brown }; 6493a66d387SMark Brown 6503a66d387SMark Brown /* Target, Path, Source */ 6514911ccdbSMark Brown static const struct snd_soc_dapm_route wm2000_audio_map[] = { 6524911ccdbSMark Brown { "SPKN", NULL, "ANC Engine" }, 6534911ccdbSMark Brown { "SPKP", NULL, "ANC Engine" }, 6544911ccdbSMark Brown { "ANC Engine", NULL, "LINN" }, 6554911ccdbSMark Brown { "ANC Engine", NULL, "LINP" }, 6563a66d387SMark Brown }; 6573a66d387SMark Brown 6584911ccdbSMark Brown #ifdef CONFIG_PM 6594911ccdbSMark Brown static int wm2000_suspend(struct snd_soc_codec *codec) 6603a66d387SMark Brown { 6614911ccdbSMark Brown struct wm2000_priv *wm2000 = dev_get_drvdata(codec->dev); 6623a66d387SMark Brown 6634911ccdbSMark Brown return wm2000_anc_transition(wm2000, ANC_OFF); 6643a66d387SMark Brown } 6653a66d387SMark Brown 6664911ccdbSMark Brown static int wm2000_resume(struct snd_soc_codec *codec) 6674911ccdbSMark Brown { 6684911ccdbSMark Brown struct wm2000_priv *wm2000 = dev_get_drvdata(codec->dev); 6693a66d387SMark Brown 6704911ccdbSMark Brown return wm2000_anc_set_mode(wm2000); 6713a66d387SMark Brown } 6724911ccdbSMark Brown #else 6734911ccdbSMark Brown #define wm2000_suspend NULL 6744911ccdbSMark Brown #define wm2000_resume NULL 6754911ccdbSMark Brown #endif 6763a66d387SMark Brown 67751cc7ed3SMark Brown static bool wm2000_readable_reg(struct device *dev, unsigned int reg) 67851cc7ed3SMark Brown { 67951cc7ed3SMark Brown switch (reg) { 68051cc7ed3SMark Brown case WM2000_REG_SYS_START: 68151cc7ed3SMark Brown case WM2000_REG_SPEECH_CLARITY: 68251cc7ed3SMark Brown case WM2000_REG_SYS_WATCHDOG: 68351cc7ed3SMark Brown case WM2000_REG_ANA_VMID_PD_TIME: 68451cc7ed3SMark Brown case WM2000_REG_ANA_VMID_PU_TIME: 68551cc7ed3SMark Brown case WM2000_REG_CAT_FLTR_INDX: 68651cc7ed3SMark Brown case WM2000_REG_CAT_GAIN_0: 68751cc7ed3SMark Brown case WM2000_REG_SYS_STATUS: 68851cc7ed3SMark Brown case WM2000_REG_SYS_MODE_CNTRL: 68951cc7ed3SMark Brown case WM2000_REG_SYS_START0: 69051cc7ed3SMark Brown case WM2000_REG_SYS_START1: 69151cc7ed3SMark Brown case WM2000_REG_ID1: 69251cc7ed3SMark Brown case WM2000_REG_ID2: 69351cc7ed3SMark Brown case WM2000_REG_REVISON: 69451cc7ed3SMark Brown case WM2000_REG_SYS_CTL1: 69551cc7ed3SMark Brown case WM2000_REG_SYS_CTL2: 69651cc7ed3SMark Brown case WM2000_REG_ANC_STAT: 69751cc7ed3SMark Brown case WM2000_REG_IF_CTL: 69851cc7ed3SMark Brown return true; 69951cc7ed3SMark Brown default: 70051cc7ed3SMark Brown return false; 70151cc7ed3SMark Brown } 70251cc7ed3SMark Brown } 70351cc7ed3SMark Brown 7048aa1fe81SMark Brown static const struct regmap_config wm2000_regmap = { 705d0e12f3fSMark Brown .reg_bits = 16, 7068aa1fe81SMark Brown .val_bits = 8, 70751cc7ed3SMark Brown 70851cc7ed3SMark Brown .max_register = WM2000_REG_IF_CTL, 70951cc7ed3SMark Brown .readable_reg = wm2000_readable_reg, 7108aa1fe81SMark Brown }; 7118aa1fe81SMark Brown 7124911ccdbSMark Brown static int wm2000_probe(struct snd_soc_codec *codec) 7134911ccdbSMark Brown { 7144911ccdbSMark Brown struct wm2000_priv *wm2000 = dev_get_drvdata(codec->dev); 7154911ccdbSMark Brown 7164911ccdbSMark Brown /* This will trigger a transition to standby mode by default */ 7174911ccdbSMark Brown wm2000_anc_set_mode(wm2000); 7184911ccdbSMark Brown 7194911ccdbSMark Brown return 0; 7204911ccdbSMark Brown } 7214911ccdbSMark Brown 7224911ccdbSMark Brown static int wm2000_remove(struct snd_soc_codec *codec) 7234911ccdbSMark Brown { 7244911ccdbSMark Brown struct wm2000_priv *wm2000 = dev_get_drvdata(codec->dev); 7254911ccdbSMark Brown 7264911ccdbSMark Brown return wm2000_anc_transition(wm2000, ANC_OFF); 7274911ccdbSMark Brown } 7284911ccdbSMark Brown 7294911ccdbSMark Brown static struct snd_soc_codec_driver soc_codec_dev_wm2000 = { 7304911ccdbSMark Brown .probe = wm2000_probe, 7314911ccdbSMark Brown .remove = wm2000_remove, 7324911ccdbSMark Brown .suspend = wm2000_suspend, 7334911ccdbSMark Brown .resume = wm2000_resume, 7344911ccdbSMark Brown 7354911ccdbSMark Brown .dapm_widgets = wm2000_dapm_widgets, 7364911ccdbSMark Brown .num_dapm_widgets = ARRAY_SIZE(wm2000_dapm_widgets), 7374911ccdbSMark Brown .dapm_routes = wm2000_audio_map, 7384911ccdbSMark Brown .num_dapm_routes = ARRAY_SIZE(wm2000_audio_map), 7394911ccdbSMark Brown .controls = wm2000_controls, 7404911ccdbSMark Brown .num_controls = ARRAY_SIZE(wm2000_controls), 7414911ccdbSMark Brown }; 7424911ccdbSMark Brown 7433a66d387SMark Brown static int __devinit wm2000_i2c_probe(struct i2c_client *i2c, 7443a66d387SMark Brown const struct i2c_device_id *i2c_id) 7453a66d387SMark Brown { 7463a66d387SMark Brown struct wm2000_priv *wm2000; 7473a66d387SMark Brown struct wm2000_platform_data *pdata; 7483a66d387SMark Brown const char *filename; 749c83f1d7eSJesper Juhl const struct firmware *fw = NULL; 750c83f1d7eSJesper Juhl int ret; 751c83f1d7eSJesper Juhl int reg; 7523a66d387SMark Brown u16 id; 7533a66d387SMark Brown 754b03e96e4SMark Brown wm2000 = devm_kzalloc(&i2c->dev, sizeof(struct wm2000_priv), 755b03e96e4SMark Brown GFP_KERNEL); 7563a66d387SMark Brown if (wm2000 == NULL) { 7573a66d387SMark Brown dev_err(&i2c->dev, "Unable to allocate private data\n"); 7583a66d387SMark Brown return -ENOMEM; 7593a66d387SMark Brown } 7603a66d387SMark Brown 7618aa1fe81SMark Brown dev_set_drvdata(&i2c->dev, wm2000); 7628aa1fe81SMark Brown 7638aa1fe81SMark Brown wm2000->regmap = regmap_init_i2c(i2c, &wm2000_regmap); 7648aa1fe81SMark Brown if (IS_ERR(wm2000->regmap)) { 7658aa1fe81SMark Brown ret = PTR_ERR(wm2000->regmap); 7668aa1fe81SMark Brown dev_err(&i2c->dev, "Failed to allocate register map: %d\n", 7678aa1fe81SMark Brown ret); 768c83f1d7eSJesper Juhl goto out; 7698aa1fe81SMark Brown } 7708aa1fe81SMark Brown 7713a66d387SMark Brown /* Verify that this is a WM2000 */ 7723a66d387SMark Brown reg = wm2000_read(i2c, WM2000_REG_ID1); 7733a66d387SMark Brown id = reg << 8; 7743a66d387SMark Brown reg = wm2000_read(i2c, WM2000_REG_ID2); 7753a66d387SMark Brown id |= reg & 0xff; 7763a66d387SMark Brown 7773a66d387SMark Brown if (id != 0x2000) { 7783a66d387SMark Brown dev_err(&i2c->dev, "Device is not a WM2000 - ID %x\n", id); 7793a66d387SMark Brown ret = -ENODEV; 780c83f1d7eSJesper Juhl goto out_regmap_exit; 7813a66d387SMark Brown } 7823a66d387SMark Brown 7833a66d387SMark Brown reg = wm2000_read(i2c, WM2000_REG_REVISON); 7843a66d387SMark Brown dev_info(&i2c->dev, "revision %c\n", reg + 'A'); 7853a66d387SMark Brown 7863a66d387SMark Brown filename = "wm2000_anc.bin"; 7873a66d387SMark Brown pdata = dev_get_platdata(&i2c->dev); 7883a66d387SMark Brown if (pdata) { 7893a66d387SMark Brown wm2000->mclk_div = pdata->mclkdiv2; 7903a66d387SMark Brown wm2000->speech_clarity = !pdata->speech_enh_disable; 7913a66d387SMark Brown 7923a66d387SMark Brown if (pdata->download_file) 7933a66d387SMark Brown filename = pdata->download_file; 7943a66d387SMark Brown } 7953a66d387SMark Brown 7963a66d387SMark Brown ret = request_firmware(&fw, filename, &i2c->dev); 7973a66d387SMark Brown if (ret != 0) { 7983a66d387SMark Brown dev_err(&i2c->dev, "Failed to acquire ANC data: %d\n", ret); 799c83f1d7eSJesper Juhl goto out_regmap_exit; 8003a66d387SMark Brown } 8013a66d387SMark Brown 8023a66d387SMark Brown /* Pre-cook the concatenation of the register address onto the image */ 8033a66d387SMark Brown wm2000->anc_download_size = fw->size + 2; 804b03e96e4SMark Brown wm2000->anc_download = devm_kzalloc(&i2c->dev, 805b03e96e4SMark Brown wm2000->anc_download_size, 806b03e96e4SMark Brown GFP_KERNEL); 8073a66d387SMark Brown if (wm2000->anc_download == NULL) { 8083a66d387SMark Brown dev_err(&i2c->dev, "Out of memory\n"); 8093a66d387SMark Brown ret = -ENOMEM; 810c83f1d7eSJesper Juhl goto out_regmap_exit; 8113a66d387SMark Brown } 8123a66d387SMark Brown 8133a66d387SMark Brown wm2000->anc_download[0] = 0x80; 8143a66d387SMark Brown wm2000->anc_download[1] = 0x00; 8153a66d387SMark Brown memcpy(wm2000->anc_download + 2, fw->data, fw->size); 8163a66d387SMark Brown 8173a66d387SMark Brown wm2000->anc_eng_ena = 1; 818e71fa370SMark Brown wm2000->anc_active = 1; 819e71fa370SMark Brown wm2000->spk_ena = 1; 8203a66d387SMark Brown wm2000->i2c = i2c; 8213a66d387SMark Brown 8223a66d387SMark Brown wm2000_reset(wm2000); 8233a66d387SMark Brown 824c83f1d7eSJesper Juhl ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_wm2000, NULL, 0); 825c83f1d7eSJesper Juhl if (!ret) 826c83f1d7eSJesper Juhl goto out; 8273a66d387SMark Brown 828c83f1d7eSJesper Juhl out_regmap_exit: 8298aa1fe81SMark Brown regmap_exit(wm2000->regmap); 830c83f1d7eSJesper Juhl out: 831c83f1d7eSJesper Juhl release_firmware(fw); 8323a66d387SMark Brown return ret; 8333a66d387SMark Brown } 8343a66d387SMark Brown 8353a66d387SMark Brown static __devexit int wm2000_i2c_remove(struct i2c_client *i2c) 8363a66d387SMark Brown { 8373a66d387SMark Brown struct wm2000_priv *wm2000 = dev_get_drvdata(&i2c->dev); 8383a66d387SMark Brown 8394911ccdbSMark Brown snd_soc_unregister_codec(&i2c->dev); 8408aa1fe81SMark Brown regmap_exit(wm2000->regmap); 8418aa1fe81SMark Brown 8423a66d387SMark Brown return 0; 8433a66d387SMark Brown } 8443a66d387SMark Brown 8453a66d387SMark Brown static const struct i2c_device_id wm2000_i2c_id[] = { 8463a66d387SMark Brown { "wm2000", 0 }, 8473a66d387SMark Brown { } 8483a66d387SMark Brown }; 8493a66d387SMark Brown MODULE_DEVICE_TABLE(i2c, wm2000_i2c_id); 8503a66d387SMark Brown 8513a66d387SMark Brown static struct i2c_driver wm2000_i2c_driver = { 8523a66d387SMark Brown .driver = { 8533a66d387SMark Brown .name = "wm2000", 8543a66d387SMark Brown .owner = THIS_MODULE, 8553a66d387SMark Brown }, 8563a66d387SMark Brown .probe = wm2000_i2c_probe, 8573a66d387SMark Brown .remove = __devexit_p(wm2000_i2c_remove), 8583a66d387SMark Brown .id_table = wm2000_i2c_id, 8593a66d387SMark Brown }; 8603a66d387SMark Brown 8613a66d387SMark Brown static int __init wm2000_init(void) 8623a66d387SMark Brown { 8633a66d387SMark Brown return i2c_add_driver(&wm2000_i2c_driver); 8643a66d387SMark Brown } 8653a66d387SMark Brown module_init(wm2000_init); 8663a66d387SMark Brown 8673a66d387SMark Brown static void __exit wm2000_exit(void) 8683a66d387SMark Brown { 8693a66d387SMark Brown i2c_del_driver(&wm2000_i2c_driver); 8703a66d387SMark Brown } 8713a66d387SMark Brown module_exit(wm2000_exit); 8723a66d387SMark Brown 8733a66d387SMark Brown MODULE_DESCRIPTION("ASoC WM2000 driver"); 8743a66d387SMark Brown MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfonmicro.com>"); 8753a66d387SMark Brown MODULE_LICENSE("GPL"); 876