Module Name: src
Committed By: jmcneill
Date: Sun Dec 7 14:24:11 UTC 2014
Modified Files:
src/sys/dev/i2c: files.i2c
Added Files:
src/sys/dev/i2c: ac100.c
Log Message:
Add driver for X-Powers AC100 integrated audio codec and RTC subsystem.
Only RTC functionality implemented for now.
To generate a diff of this commit:
cvs rdiff -u -r0 -r1.1 src/sys/dev/i2c/ac100.c
cvs rdiff -u -r1.60 -r1.61 src/sys/dev/i2c/files.i2c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/dev/i2c/files.i2c
diff -u src/sys/dev/i2c/files.i2c:1.60 src/sys/dev/i2c/files.i2c:1.61
--- src/sys/dev/i2c/files.i2c:1.60 Sun Dec 7 00:33:26 2014
+++ src/sys/dev/i2c/files.i2c Sun Dec 7 14:24:11 2014
@@ -1,4 +1,4 @@
-# $NetBSD: files.i2c,v 1.60 2014/12/07 00:33:26 jmcneill Exp $
+# $NetBSD: files.i2c,v 1.61 2014/12/07 14:24:11 jmcneill Exp $
obsolete defflag opt_i2cbus.h I2C_SCAN
define i2cbus { }
@@ -235,3 +235,8 @@ file dev/i2c/axp806.c axp806pm needs-f
device axp809pm
attach axp809pm at iic
file dev/i2c/axp809.c axp809pm needs-flag
+
+# AC100 integrated audio codec and RTC
+device ac100ic
+attach ac100ic at iic
+file dev/i2c/ac100.c ac100ic needs-flag
Added files:
Index: src/sys/dev/i2c/ac100.c
diff -u /dev/null src/sys/dev/i2c/ac100.c:1.1
--- /dev/null Sun Dec 7 14:24:11 2014
+++ src/sys/dev/i2c/ac100.c Sun Dec 7 14:24:11 2014
@@ -0,0 +1,197 @@
+/* $NetBSD: ac100.c,v 1.1 2014/12/07 14:24:11 jmcneill Exp $ */
+
+/*-
+ * Copyright (c) 2014 Jared D. McNeill <jmcne...@invisible.ca>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__KERNEL_RCSID(0, "$NetBSD: ac100.c,v 1.1 2014/12/07 14:24:11 jmcneill Exp $");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/device.h>
+#include <sys/conf.h>
+#include <sys/bus.h>
+#include <sys/kmem.h>
+
+#include <dev/clock_subr.h>
+
+#include <dev/i2c/i2cvar.h>
+
+#define AC100_CHIP_AUDIO_RST_REG 0x00
+#define AC100_PLL_CTRL1_REG 0x02
+#define AC100_PLL_CTRL2_REG 0x03
+#define AC100_SYSCLK_CTRL_REG 0x04
+#define AC100_MOD_RST_CTRL_REG 0x05
+#define AC100_ADDA_SR_CTRL_REG 0x06
+#define AC100_I2S1_LCK_CTRL_REG 0x10
+#define AC100_I2S1_SDIN_CTRL_REG 0x11
+#define AC100_I2S1_SDOUT_CTRL_REG 0x12
+#define AC100_I2S1_DIG_MIXER_REG 0x13
+#define AC100_I2S1_VOL_CTRL1_REG 0x14
+#define AC100_I2S1_VOL_CTRL2_REG 0x15
+#define AC100_I2S1_VOL_CTRL3_REG 0x16
+#define AC100_I2S1_VOL_CTRL4_REG 0x17
+#define AC100_I2S1_MXR_GAIN_REG 0x18
+#define AC100_I2S2_CLK_CTRL_REG 0x20
+#define AC100_I2S2_SDIN_CTRL_REG 0x21
+#define AC100_I2S2_SDOUT_CTRL_REG 0x22
+#define AC100_I2S2_DIG_MIXER_REG 0x23
+#define AC100_I2S2_VOL_CTRL1_REG 0x24
+#define AC100_I2S2_VOL_CTRL2_REG 0x26
+#define AC100_I2S2_MXR_GAIN_REG 0x28
+#define AC100_I2S3_CLK_CTRL_REG 0x30
+#define AC100_I2S3_SDIN_CTRL_REG 0x31
+#define AC100_I2S3_SDOUT_CTRL_REG 0x32
+#define AC100_I2S3_SGP_CTRL_REG 0x33
+#define AC100_ADC_DIG_CTRL_REG 0x40
+
+#define AC100_RTC_RESET_REG 0xc6
+#define AC100_RTC_CTRL_REG 0xc7
+#define AC100_RTC_SEC_REG 0xc8
+#define AC100_RTC_MIN_REG 0xc9
+#define AC100_RTC_HOU_REG 0xca
+#define AC100_RTC_WEE_REG 0xcb
+#define AC100_RTC_DAY_REG 0xcc
+#define AC100_RTC_MON_REG 0xcd
+#define AC100_RTC_YEA_REG 0xce
+#define AC100_RTC_UPD_TRIG_REG 0xcf
+
+#define AC100_RTC_GP_REG(n) (0xe0 + (n))
+
+#define AC100_RTC_CTRL_12H_24H_MODE __BIT(0)
+
+#define AC100_RTC_UPD_TRIG_WRITE __BIT(15)
+
+struct ac100_softc {
+ device_t sc_dev;
+ i2c_tag_t sc_i2c;
+ i2c_addr_t sc_addr;
+
+ struct todr_chip_handle sc_todr;
+};
+
+static int ac100_match(device_t, cfdata_t, void *);
+static void ac100_attach(device_t, device_t, void *);
+
+static int ac100_rtc_gettime(todr_chip_handle_t, struct clock_ymdhms *);
+static int ac100_rtc_settime(todr_chip_handle_t, struct clock_ymdhms *);
+
+static int ac100_read(struct ac100_softc *, uint8_t, uint16_t *);
+static int ac100_write(struct ac100_softc *, uint8_t, uint16_t);
+
+CFATTACH_DECL_NEW(ac100ic, sizeof(struct ac100_softc),
+ ac100_match, ac100_attach, NULL, NULL);
+
+static int
+ac100_match(device_t parent, cfdata_t match, void *aux)
+{
+ return 1;
+}
+
+static void
+ac100_attach(device_t parent, device_t self, void *aux)
+{
+ struct ac100_softc *sc = device_private(self);
+ struct i2c_attach_args *ia = aux;
+
+ sc->sc_dev = self;
+ sc->sc_i2c = ia->ia_tag;
+ sc->sc_addr = ia->ia_addr;
+
+ aprint_naive("\n");
+ aprint_normal(": CODEC/RTC\n");
+
+ iic_acquire_bus(sc->sc_i2c, 0);
+ ac100_write(sc, AC100_RTC_CTRL_REG, AC100_RTC_CTRL_12H_24H_MODE);
+ iic_release_bus(sc->sc_i2c, 0);
+
+ sc->sc_todr.todr_gettime_ymdhms = ac100_rtc_gettime;
+ sc->sc_todr.todr_settime_ymdhms = ac100_rtc_settime;
+ sc->sc_todr.cookie = sc;
+ todr_attach(&sc->sc_todr);
+}
+
+static int
+ac100_read(struct ac100_softc *sc, uint8_t reg, uint16_t *val)
+{
+ return iic_smbus_read_word(sc->sc_i2c, sc->sc_addr, reg, val,
+ cold ? I2C_F_POLL : 0);
+}
+
+static int
+ac100_write(struct ac100_softc *sc, uint8_t reg, uint16_t val)
+{
+ return iic_smbus_write_word(sc->sc_i2c, sc->sc_addr, reg, val,
+ cold ? I2C_F_POLL : 0);
+}
+
+static int
+ac100_rtc_gettime(todr_chip_handle_t tch, struct clock_ymdhms *dt)
+{
+ struct ac100_softc *sc = tch->cookie;
+ uint16_t sec, min, hou, wee, day, mon, yea;
+
+ iic_acquire_bus(sc->sc_i2c, 0);
+ ac100_read(sc, AC100_RTC_SEC_REG, &sec);
+ ac100_read(sc, AC100_RTC_MIN_REG, &min);
+ ac100_read(sc, AC100_RTC_HOU_REG, &hou);
+ ac100_read(sc, AC100_RTC_WEE_REG, &wee);
+ ac100_read(sc, AC100_RTC_DAY_REG, &day);
+ ac100_read(sc, AC100_RTC_MON_REG, &mon);
+ ac100_read(sc, AC100_RTC_YEA_REG, &yea);
+ iic_release_bus(sc->sc_i2c, 0);
+
+ dt->dt_year = POSIX_BASE_YEAR + bcdtobin(yea & 0xff);
+ dt->dt_mon = bcdtobin(mon & 0x1f);
+ dt->dt_day = bcdtobin(day & 0x3f);
+ dt->dt_wday = bcdtobin(wee & 0x7);
+ dt->dt_hour = bcdtobin(hou & 0x3f);
+ dt->dt_min = bcdtobin(min & 0x7f);
+ dt->dt_sec = bcdtobin(sec & 0x7f);
+
+ return 0;
+}
+
+static int
+ac100_rtc_settime(todr_chip_handle_t tch, struct clock_ymdhms *dt)
+{
+ struct ac100_softc *sc = tch->cookie;
+
+ iic_acquire_bus(sc->sc_i2c, 0);
+ ac100_write(sc, AC100_RTC_SEC_REG, bintobcd(dt->dt_sec) & 0x7f);
+ ac100_write(sc, AC100_RTC_MIN_REG, bintobcd(dt->dt_min) & 0x7f);
+ ac100_write(sc, AC100_RTC_HOU_REG, bintobcd(dt->dt_hour) & 0x3f);
+ ac100_write(sc, AC100_RTC_WEE_REG, bintobcd(dt->dt_wday) & 0x7);
+ ac100_write(sc, AC100_RTC_DAY_REG, bintobcd(dt->dt_day) & 0x3f);
+ ac100_write(sc, AC100_RTC_MON_REG, bintobcd(dt->dt_mon) & 0x1f);
+ ac100_write(sc, AC100_RTC_YEA_REG,
+ bintobcd(dt->dt_year - POSIX_BASE_YEAR) & 0xff);
+ ac100_write(sc, AC100_RTC_UPD_TRIG_REG, AC100_RTC_UPD_TRIG_WRITE);
+ iic_release_bus(sc->sc_i2c, 0);
+
+ return 0;
+}
