1 /* $NetBSD: ac100.c,v 1.11 2025/09/17 13:49:13 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 2014 Jared D. McNeill <jmcneill (at) invisible.ca> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include "opt_fdt.h" 30 31 #include <sys/cdefs.h> 32 __KERNEL_RCSID(0, "$NetBSD: ac100.c,v 1.11 2025/09/17 13:49:13 thorpej Exp $"); 33 34 #include <sys/param.h> 35 #include <sys/systm.h> 36 #include <sys/kernel.h> 37 #include <sys/device.h> 38 #include <sys/conf.h> 39 #include <sys/bus.h> 40 #include <sys/kmem.h> 41 42 #include <dev/clock_subr.h> 43 44 #include <dev/i2c/i2cvar.h> 45 46 #ifdef FDT 47 #include <dev/fdt/fdtvar.h> 48 #endif 49 50 #define AC100_CHIP_AUDIO_RST_REG 0x00 51 #define AC100_PLL_CTRL1_REG 0x02 52 #define AC100_PLL_CTRL2_REG 0x03 53 #define AC100_SYSCLK_CTRL_REG 0x04 54 #define AC100_MOD_RST_CTRL_REG 0x05 55 #define AC100_ADDA_SR_CTRL_REG 0x06 56 #define AC100_I2S1_LCK_CTRL_REG 0x10 57 #define AC100_I2S1_SDIN_CTRL_REG 0x11 58 #define AC100_I2S1_SDOUT_CTRL_REG 0x12 59 #define AC100_I2S1_DIG_MIXER_REG 0x13 60 #define AC100_I2S1_VOL_CTRL1_REG 0x14 61 #define AC100_I2S1_VOL_CTRL2_REG 0x15 62 #define AC100_I2S1_VOL_CTRL3_REG 0x16 63 #define AC100_I2S1_VOL_CTRL4_REG 0x17 64 #define AC100_I2S1_MXR_GAIN_REG 0x18 65 #define AC100_I2S2_CLK_CTRL_REG 0x20 66 #define AC100_I2S2_SDIN_CTRL_REG 0x21 67 #define AC100_I2S2_SDOUT_CTRL_REG 0x22 68 #define AC100_I2S2_DIG_MIXER_REG 0x23 69 #define AC100_I2S2_VOL_CTRL1_REG 0x24 70 #define AC100_I2S2_VOL_CTRL2_REG 0x26 71 #define AC100_I2S2_MXR_GAIN_REG 0x28 72 #define AC100_I2S3_CLK_CTRL_REG 0x30 73 #define AC100_I2S3_SDIN_CTRL_REG 0x31 74 #define AC100_I2S3_SDOUT_CTRL_REG 0x32 75 #define AC100_I2S3_SGP_CTRL_REG 0x33 76 #define AC100_ADC_DIG_CTRL_REG 0x40 77 78 #define AC100_RTC_RESET_REG 0xc6 79 #define AC100_RTC_CTRL_REG 0xc7 80 #define AC100_RTC_SEC_REG 0xc8 81 #define AC100_RTC_MIN_REG 0xc9 82 #define AC100_RTC_HOU_REG 0xca 83 #define AC100_RTC_WEE_REG 0xcb 84 #define AC100_RTC_DAY_REG 0xcc 85 #define AC100_RTC_MON_REG 0xcd 86 #define AC100_RTC_YEA_REG 0xce 87 #define AC100_RTC_UPD_TRIG_REG 0xcf 88 89 #define AC100_RTC_GP_REG(n) (0xe0 + (n)) 90 91 #define AC100_RTC_CTRL_12H_24H_MODE __BIT(0) 92 93 #define AC100_RTC_UPD_TRIG_WRITE __BIT(15) 94 95 static const struct device_compatible_entry compat_data[] = { 96 { .compat = "x-powers,ac100" }, 97 DEVICE_COMPAT_EOL 98 }; 99 100 struct ac100_softc { 101 device_t sc_dev; 102 i2c_tag_t sc_i2c; 103 i2c_addr_t sc_addr; 104 }; 105 106 static int ac100_match(device_t, cfdata_t, void *); 107 static void ac100_attach(device_t, device_t, void *); 108 109 static int ac100_rtc_gettime(todr_chip_handle_t, struct clock_ymdhms *); 110 static int ac100_rtc_settime(todr_chip_handle_t, struct clock_ymdhms *); 111 112 static int ac100_read(struct ac100_softc *, uint8_t, uint16_t *); 113 static int ac100_write(struct ac100_softc *, uint8_t, uint16_t); 114 115 CFATTACH_DECL_NEW(ac100ic, sizeof(struct ac100_softc), 116 ac100_match, ac100_attach, NULL, NULL); 117 118 struct ac100rtc_softc { 119 device_t sc_dev; 120 121 struct todr_chip_handle sc_todr; 122 }; 123 124 static int ac100rtc_match(device_t, cfdata_t, void *); 125 static void ac100rtc_attach(device_t, device_t, void *); 126 127 CFATTACH_DECL_NEW(ac100rtc, sizeof(struct ac100rtc_softc), 128 ac100rtc_match, ac100rtc_attach, NULL, NULL); 129 130 static int 131 ac100_match(device_t parent, cfdata_t match, void *aux) 132 { 133 struct i2c_attach_args *ia = aux; 134 int match_result; 135 136 if (iic_use_direct_match(ia, match, compat_data, &match_result)) 137 return match_result; 138 139 /* This device is direct-config only. */ 140 141 return 0; 142 } 143 144 static void 145 ac100_attach(device_t parent, device_t self, void *aux) 146 { 147 struct ac100_softc *sc = device_private(self); 148 struct i2c_attach_args *ia = aux; 149 150 sc->sc_dev = self; 151 sc->sc_i2c = ia->ia_tag; 152 sc->sc_addr = ia->ia_addr; 153 154 aprint_naive("\n"); 155 aprint_normal(": CODEC/RTC\n"); 156 157 iic_acquire_bus(sc->sc_i2c, 0); 158 ac100_write(sc, AC100_RTC_CTRL_REG, AC100_RTC_CTRL_12H_24H_MODE); 159 iic_release_bus(sc->sc_i2c, 0); 160 161 #ifdef FDT 162 if (devhandle_type(device_handle(self)) == DEVHANDLE_TYPE_OF) { 163 int phandle = devhandle_to_of(device_handle(self)); 164 fdt_add_bus(self, phandle, NULL); 165 } 166 #endif 167 } 168 169 #ifdef FDT 170 static const struct device_compatible_entry rtc_compat_data[] = { 171 { .compat = "x-powers,ac100-rtc" }, 172 DEVICE_COMPAT_EOL 173 }; 174 175 static int 176 ac100rtc_match(device_t parent, cfdata_t match, void *aux) 177 { 178 struct fdt_attach_args * const faa = aux; 179 180 return of_compatible_match(faa->faa_phandle, rtc_compat_data); 181 } 182 183 static void 184 ac100rtc_attach(device_t parent, device_t self, void *aux) 185 { 186 struct ac100rtc_softc *sc = device_private(self); 187 188 sc->sc_dev = self; 189 aprint_naive("\n"); 190 aprint_normal("\n"); 191 192 sc->sc_todr.todr_gettime_ymdhms = ac100_rtc_gettime; 193 sc->sc_todr.todr_settime_ymdhms = ac100_rtc_settime; 194 sc->sc_todr.todr_dev = self; 195 196 todr_attach(&sc->sc_todr); 197 } 198 #endif /* FDT */ 199 200 static int 201 ac100_read(struct ac100_softc *sc, uint8_t reg, uint16_t *val) 202 { 203 return iic_smbus_read_word(sc->sc_i2c, sc->sc_addr, reg, val, 0); 204 } 205 206 static int 207 ac100_write(struct ac100_softc *sc, uint8_t reg, uint16_t val) 208 { 209 return iic_smbus_write_word(sc->sc_i2c, sc->sc_addr, reg, val, 0); 210 } 211 212 static int 213 ac100_rtc_gettime(todr_chip_handle_t tch, struct clock_ymdhms *dt) 214 { 215 struct ac100_softc *sc = device_private(device_parent(tch->todr_dev)); 216 uint16_t sec, min, hou, wee, day, mon, yea; 217 218 iic_acquire_bus(sc->sc_i2c, 0); 219 ac100_read(sc, AC100_RTC_SEC_REG, &sec); 220 ac100_read(sc, AC100_RTC_MIN_REG, &min); 221 ac100_read(sc, AC100_RTC_HOU_REG, &hou); 222 ac100_read(sc, AC100_RTC_WEE_REG, &wee); 223 ac100_read(sc, AC100_RTC_DAY_REG, &day); 224 ac100_read(sc, AC100_RTC_MON_REG, &mon); 225 ac100_read(sc, AC100_RTC_YEA_REG, &yea); 226 iic_release_bus(sc->sc_i2c, 0); 227 228 dt->dt_year = POSIX_BASE_YEAR + bcdtobin(yea & 0xff); 229 dt->dt_mon = bcdtobin(mon & 0x1f); 230 dt->dt_day = bcdtobin(day & 0x3f); 231 dt->dt_wday = bcdtobin(wee & 0x7); 232 dt->dt_hour = bcdtobin(hou & 0x3f); 233 dt->dt_min = bcdtobin(min & 0x7f); 234 dt->dt_sec = bcdtobin(sec & 0x7f); 235 236 return 0; 237 } 238 239 static int 240 ac100_rtc_settime(todr_chip_handle_t tch, struct clock_ymdhms *dt) 241 { 242 struct ac100_softc *sc = device_private(device_parent(tch->todr_dev)); 243 244 iic_acquire_bus(sc->sc_i2c, 0); 245 ac100_write(sc, AC100_RTC_SEC_REG, bintobcd(dt->dt_sec) & 0x7f); 246 ac100_write(sc, AC100_RTC_MIN_REG, bintobcd(dt->dt_min) & 0x7f); 247 ac100_write(sc, AC100_RTC_HOU_REG, bintobcd(dt->dt_hour) & 0x3f); 248 ac100_write(sc, AC100_RTC_WEE_REG, bintobcd(dt->dt_wday) & 0x7); 249 ac100_write(sc, AC100_RTC_DAY_REG, bintobcd(dt->dt_day) & 0x3f); 250 ac100_write(sc, AC100_RTC_MON_REG, bintobcd(dt->dt_mon) & 0x1f); 251 ac100_write(sc, AC100_RTC_YEA_REG, 252 bintobcd(dt->dt_year - POSIX_BASE_YEAR) & 0xff); 253 ac100_write(sc, AC100_RTC_UPD_TRIG_REG, AC100_RTC_UPD_TRIG_WRITE); 254 iic_release_bus(sc->sc_i2c, 0); 255 256 return 0; 257 } 258
Indexes created Thu Oct 02 10:09:58 GMT 2025