--- /dev/null
+/*
+ * MFD driver for twl4030 codec submodule
+ *
+ * Author: Peter Ujfalusi <peter.ujfalusi@nokia.com>
+ *
+ * Copyright: (C) 2009 Nokia Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/fs.h>
+#include <linux/platform_device.h>
+#include <linux/i2c/twl4030.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/twl4030-codec.h>
+
+#define TWL4030_CODEC_CELLS 2
+
+static struct platform_device *twl4030_codec_dev;
+
+struct twl4030_codec_resource {
+ int request_count;
+ u8 reg;
+ u8 mask;
+};
+
+struct twl4030_codec {
+ struct mutex mutex;
+ struct twl4030_codec_resource resource[TWL4030_CODEC_RES_MAX];
+ struct mfd_cell cells[TWL4030_CODEC_CELLS];
+};
+
+/*
+ * Modify the resource, the function returns the content of the register
+ * after the modification.
+ */
+static int twl4030_codec_set_resource(enum twl4030_codec_res id, int enable)
+{
+ struct twl4030_codec *codec = platform_get_drvdata(twl4030_codec_dev);
+ u8 val;
+
+ twl4030_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &val,
+ codec->resource[id].reg);
+
+ if (enable)
+ val |= codec->resource[id].mask;
+ else
+ val &= ~codec->resource[id].mask;
+
+ twl4030_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE,
+ val, codec->resource[id].reg);
+
+ return val;
+}
+
+static inline int twl4030_codec_get_resource(enum twl4030_codec_res id)
+{
+ struct twl4030_codec *codec = platform_get_drvdata(twl4030_codec_dev);
+ u8 val;
+
+ twl4030_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &val,
+ codec->resource[id].reg);
+
+ return val;
+}
+
+/*
+ * Enable the resource.
+ * The function returns with error or the content of the register
+ */
+int twl4030_codec_enable_resource(enum twl4030_codec_res id)
+{
+ struct twl4030_codec *codec = platform_get_drvdata(twl4030_codec_dev);
+ int val;
+
+ if (id >= TWL4030_CODEC_RES_MAX) {
+ dev_err(&twl4030_codec_dev->dev,
+ "Invalid resource ID (%u)\n", id);
+ return -EINVAL;
+ }
+
+ mutex_lock(&codec->mutex);
+ if (!codec->resource[id].request_count)
+ /* Resource was disabled, enable it */
+ val = twl4030_codec_set_resource(id, 1);
+ else
+ val = twl4030_codec_get_resource(id);
+
+ codec->resource[id].request_count++;
+ mutex_unlock(&codec->mutex);
+
+ return val;
+}
+EXPORT_SYMBOL_GPL(twl4030_codec_enable_resource);
+
+/*
+ * Disable the resource.
+ * The function returns with error or the content of the register
+ */
+int twl4030_codec_disable_resource(unsigned id)
+{
+ struct twl4030_codec *codec = platform_get_drvdata(twl4030_codec_dev);
+ int val;
+
+ if (id >= TWL4030_CODEC_RES_MAX) {
+ dev_err(&twl4030_codec_dev->dev,
+ "Invalid resource ID (%u)\n", id);
+ return -EINVAL;
+ }
+
+ mutex_lock(&codec->mutex);
+ if (!codec->resource[id].request_count) {
+ dev_err(&twl4030_codec_dev->dev,
+ "Resource has been disabled already (%u)\n", id);
+ mutex_unlock(&codec->mutex);
+ return -EPERM;
+ }
+ codec->resource[id].request_count--;
+
+ if (!codec->resource[id].request_count)
+ /* Resource can be disabled now */
+ val = twl4030_codec_set_resource(id, 0);
+ else
+ val = twl4030_codec_get_resource(id);
+
+ mutex_unlock(&codec->mutex);
+
+ return val;
+}
+EXPORT_SYMBOL_GPL(twl4030_codec_disable_resource);
+
+static int __devinit twl4030_codec_probe(struct platform_device *pdev)
+{
+ struct twl4030_codec *codec;
+ struct twl4030_codec_data *pdata = pdev->dev.platform_data;
+ struct mfd_cell *cell = NULL;
+ int ret, childs = 0;
+
+ codec = kzalloc(sizeof(struct twl4030_codec), GFP_KERNEL);
+ if (!codec)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, codec);
+
+ twl4030_codec_dev = pdev;
+ mutex_init(&codec->mutex);
+
+ /* Codec power */
+ codec->resource[TWL4030_CODEC_RES_POWER].reg = TWL4030_REG_CODEC_MODE;
+ codec->resource[TWL4030_CODEC_RES_POWER].mask = TWL4030_CODECPDZ;
+
+ /* PLL */
+ codec->resource[TWL4030_CODEC_RES_APLL].reg = TWL4030_REG_APLL_CTL;
+ codec->resource[TWL4030_CODEC_RES_APLL].mask = TWL4030_APLL_EN;
+
+ if (pdata->audio) {
+ cell = &codec->cells[childs];
+ cell->name = "twl4030_codec_audio";
+ cell->platform_data = pdata->audio;
+ cell->data_size = sizeof(*pdata->audio);
+ childs++;
+ }
+ if (pdata->vibra) {
+ cell = &codec->cells[childs];
+ cell->name = "twl4030_codec_vibra";
+ cell->platform_data = pdata->vibra;
+ cell->data_size = sizeof(*pdata->vibra);
+ childs++;
+ }
+
+ if (childs)
+ ret = mfd_add_devices(&pdev->dev, pdev->id, codec->cells,
+ childs, NULL, 0);
+ else {
+ dev_err(&pdev->dev, "No platform data found for childs\n");
+ ret = -ENODEV;
+ }
+
+ if (!ret)
+ return 0;
+
+ platform_set_drvdata(pdev, NULL);
+ kfree(codec);
+ twl4030_codec_dev = NULL;
+ return ret;
+}
+
+static int __devexit twl4030_codec_remove(struct platform_device *pdev)
+{
+ struct twl4030_codec *codec = platform_get_drvdata(pdev);
+
+ mfd_remove_devices(&pdev->dev);
+ platform_set_drvdata(pdev, NULL);
+ kfree(codec);
+ twl4030_codec_dev = NULL;
+
+ return 0;
+}
+
+MODULE_ALIAS("platform:twl4030_codec");
+
+static struct platform_driver twl4030_codec_driver = {
+ .probe = twl4030_codec_probe,
+ .remove = __devexit_p(twl4030_codec_remove),
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "twl4030_codec",
+ },
+};
+
+static int __devinit twl4030_codec_init(void)
+{
+ return platform_driver_register(&twl4030_codec_driver);
+}
+module_init(twl4030_codec_init);
+
+static void __devexit twl4030_codec_exit(void)
+{
+ platform_driver_unregister(&twl4030_codec_driver);
+}
+module_exit(twl4030_codec_exit);
+
+MODULE_AUTHOR("Peter Ujfalusi <peter.ujfalusi@nokia.com>");
+MODULE_LICENSE("GPL");
+
--- /dev/null
+/*
+ * MFD driver for twl4030 codec submodule
+ *
+ * Author: Peter Ujfalusi <peter.ujfalusi@nokia.com>
+ *
+ * Copyright: (C) 2009 Nokia Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#ifndef __TWL4030_CODEC_H__
+#define __TWL4030_CODEC_H__
+
+/* Codec registers */
+#define TWL4030_REG_CODEC_MODE 0x01
+#define TWL4030_REG_OPTION 0x02
+#define TWL4030_REG_UNKNOWN 0x03
+#define TWL4030_REG_MICBIAS_CTL 0x04
+#define TWL4030_REG_ANAMICL 0x05
+#define TWL4030_REG_ANAMICR 0x06
+#define TWL4030_REG_AVADC_CTL 0x07
+#define TWL4030_REG_ADCMICSEL 0x08
+#define TWL4030_REG_DIGMIXING 0x09
+#define TWL4030_REG_ATXL1PGA 0x0A
+#define TWL4030_REG_ATXR1PGA 0x0B
+#define TWL4030_REG_AVTXL2PGA 0x0C
+#define TWL4030_REG_AVTXR2PGA 0x0D
+#define TWL4030_REG_AUDIO_IF 0x0E
+#define TWL4030_REG_VOICE_IF 0x0F
+#define TWL4030_REG_ARXR1PGA 0x10
+#define TWL4030_REG_ARXL1PGA 0x11
+#define TWL4030_REG_ARXR2PGA 0x12
+#define TWL4030_REG_ARXL2PGA 0x13
+#define TWL4030_REG_VRXPGA 0x14
+#define TWL4030_REG_VSTPGA 0x15
+#define TWL4030_REG_VRX2ARXPGA 0x16
+#define TWL4030_REG_AVDAC_CTL 0x17
+#define TWL4030_REG_ARX2VTXPGA 0x18
+#define TWL4030_REG_ARXL1_APGA_CTL 0x19
+#define TWL4030_REG_ARXR1_APGA_CTL 0x1A
+#define TWL4030_REG_ARXL2_APGA_CTL 0x1B
+#define TWL4030_REG_ARXR2_APGA_CTL 0x1C
+#define TWL4030_REG_ATX2ARXPGA 0x1D
+#define TWL4030_REG_BT_IF 0x1E
+#define TWL4030_REG_BTPGA 0x1F
+#define TWL4030_REG_BTSTPGA 0x20
+#define TWL4030_REG_EAR_CTL 0x21
+#define TWL4030_REG_HS_SEL 0x22
+#define TWL4030_REG_HS_GAIN_SET 0x23
+#define TWL4030_REG_HS_POPN_SET 0x24
+#define TWL4030_REG_PREDL_CTL 0x25
+#define TWL4030_REG_PREDR_CTL 0x26
+#define TWL4030_REG_PRECKL_CTL 0x27
+#define TWL4030_REG_PRECKR_CTL 0x28
+#define TWL4030_REG_HFL_CTL 0x29
+#define TWL4030_REG_HFR_CTL 0x2A
+#define TWL4030_REG_ALC_CTL 0x2B
+#define TWL4030_REG_ALC_SET1 0x2C
+#define TWL4030_REG_ALC_SET2 0x2D
+#define TWL4030_REG_BOOST_CTL 0x2E
+#define TWL4030_REG_SOFTVOL_CTL 0x2F
+#define TWL4030_REG_DTMF_FREQSEL 0x30
+#define TWL4030_REG_DTMF_TONEXT1H 0x31
+#define TWL4030_REG_DTMF_TONEXT1L 0x32
+#define TWL4030_REG_DTMF_TONEXT2H 0x33
+#define TWL4030_REG_DTMF_TONEXT2L 0x34
+#define TWL4030_REG_DTMF_TONOFF 0x35
+#define TWL4030_REG_DTMF_WANONOFF 0x36
+#define TWL4030_REG_I2S_RX_SCRAMBLE_H 0x37
+#define TWL4030_REG_I2S_RX_SCRAMBLE_M 0x38
+#define TWL4030_REG_I2S_RX_SCRAMBLE_L 0x39
+#define TWL4030_REG_APLL_CTL 0x3A
+#define TWL4030_REG_DTMF_CTL 0x3B
+#define TWL4030_REG_DTMF_PGA_CTL2 0x3C
+#define TWL4030_REG_DTMF_PGA_CTL1 0x3D
+#define TWL4030_REG_MISC_SET_1 0x3E
+#define TWL4030_REG_PCMBTMUX 0x3F
+#define TWL4030_REG_RX_PATH_SEL 0x43
+#define TWL4030_REG_VDL_APGA_CTL 0x44
+#define TWL4030_REG_VIBRA_CTL 0x45
+#define TWL4030_REG_VIBRA_SET 0x46
+#define TWL4030_REG_VIBRA_PWM_SET 0x47
+#define TWL4030_REG_ANAMIC_GAIN 0x48
+#define TWL4030_REG_MISC_SET_2 0x49
+
+/* Bitfield Definitions */
+
+/* TWL4030_CODEC_MODE (0x01) Fields */
+#define TWL4030_APLL_RATE 0xF0
+#define TWL4030_APLL_RATE_8000 0x00
+#define TWL4030_APLL_RATE_11025 0x10
+#define TWL4030_APLL_RATE_12000 0x20
+#define TWL4030_APLL_RATE_16000 0x40
+#define TWL4030_APLL_RATE_22050 0x50
+#define TWL4030_APLL_RATE_24000 0x60
+#define TWL4030_APLL_RATE_32000 0x80
+#define TWL4030_APLL_RATE_44100 0x90
+#define TWL4030_APLL_RATE_48000 0xA0
+#define TWL4030_APLL_RATE_96000 0xE0
+#define TWL4030_SEL_16K 0x08
+#define TWL4030_CODECPDZ 0x02
+#define TWL4030_OPT_MODE 0x01
+#define TWL4030_OPTION_1 (1 << 0)
+#define TWL4030_OPTION_2 (0 << 0)
+
+/* TWL4030_OPTION (0x02) Fields */
+#define TWL4030_ATXL1_EN (1 << 0)
+#define TWL4030_ATXR1_EN (1 << 1)
+#define TWL4030_ATXL2_VTXL_EN (1 << 2)
+#define TWL4030_ATXR2_VTXR_EN (1 << 3)
+#define TWL4030_ARXL1_VRX_EN (1 << 4)
+#define TWL4030_ARXR1_EN (1 << 5)
+#define TWL4030_ARXL2_EN (1 << 6)
+#define TWL4030_ARXR2_EN (1 << 7)
+
+/* TWL4030_REG_MICBIAS_CTL (0x04) Fields */
+#define TWL4030_MICBIAS2_CTL 0x40
+#define TWL4030_MICBIAS1_CTL 0x20
+#define TWL4030_HSMICBIAS_EN 0x04
+#define TWL4030_MICBIAS2_EN 0x02
+#define TWL4030_MICBIAS1_EN 0x01
+
+/* ANAMICL (0x05) Fields */
+#define TWL4030_CNCL_OFFSET_START 0x80
+#define TWL4030_OFFSET_CNCL_SEL 0x60
+#define TWL4030_OFFSET_CNCL_SEL_ARX1 0x00
+#define TWL4030_OFFSET_CNCL_SEL_ARX2 0x20
+#define TWL4030_OFFSET_CNCL_SEL_VRX 0x40
+#define TWL4030_OFFSET_CNCL_SEL_ALL 0x60
+#define TWL4030_MICAMPL_EN 0x10
+#define TWL4030_CKMIC_EN 0x08
+#define TWL4030_AUXL_EN 0x04
+#define TWL4030_HSMIC_EN 0x02
+#define TWL4030_MAINMIC_EN 0x01
+
+/* ANAMICR (0x06) Fields */
+#define TWL4030_MICAMPR_EN 0x10
+#define TWL4030_AUXR_EN 0x04
+#define TWL4030_SUBMIC_EN 0x01
+
+/* AVADC_CTL (0x07) Fields */
+#define TWL4030_ADCL_EN 0x08
+#define TWL4030_AVADC_CLK_PRIORITY 0x04
+#define TWL4030_ADCR_EN 0x02
+
+/* TWL4030_REG_ADCMICSEL (0x08) Fields */
+#define TWL4030_DIGMIC1_EN 0x08
+#define TWL4030_TX2IN_SEL 0x04
+#define TWL4030_DIGMIC0_EN 0x02
+#define TWL4030_TX1IN_SEL 0x01
+
+/* AUDIO_IF (0x0E) Fields */
+#define TWL4030_AIF_SLAVE_EN 0x80
+#define TWL4030_DATA_WIDTH 0x60
+#define TWL4030_DATA_WIDTH_16S_16W 0x00
+#define TWL4030_DATA_WIDTH_32S_16W 0x40
+#define TWL4030_DATA_WIDTH_32S_24W 0x60
+#define TWL4030_AIF_FORMAT 0x18
+#define TWL4030_AIF_FORMAT_CODEC 0x00
+#define TWL4030_AIF_FORMAT_LEFT 0x08
+#define TWL4030_AIF_FORMAT_RIGHT 0x10
+#define TWL4030_AIF_FORMAT_TDM 0x18
+#define TWL4030_AIF_TRI_EN 0x04
+#define TWL4030_CLK256FS_EN 0x02
+#define TWL4030_AIF_EN 0x01
+
+/* VOICE_IF (0x0F) Fields */
+#define TWL4030_VIF_SLAVE_EN 0x80
+#define TWL4030_VIF_DIN_EN 0x40
+#define TWL4030_VIF_DOUT_EN 0x20
+#define TWL4030_VIF_SWAP 0x10
+#define TWL4030_VIF_FORMAT 0x08
+#define TWL4030_VIF_TRI_EN 0x04
+#define TWL4030_VIF_SUB_EN 0x02
+#define TWL4030_VIF_EN 0x01
+
+/* EAR_CTL (0x21) */
+#define TWL4030_EAR_GAIN 0x30
+
+/* HS_GAIN_SET (0x23) Fields */
+#define TWL4030_HSR_GAIN 0x0C
+#define TWL4030_HSR_GAIN_PWR_DOWN 0x00
+#define TWL4030_HSR_GAIN_PLUS_6DB 0x04
+#define TWL4030_HSR_GAIN_0DB 0x08
+#define TWL4030_HSR_GAIN_MINUS_6DB 0x0C
+#define TWL4030_HSL_GAIN 0x03
+#define TWL4030_HSL_GAIN_PWR_DOWN 0x00
+#define TWL4030_HSL_GAIN_PLUS_6DB 0x01
+#define TWL4030_HSL_GAIN_0DB 0x02
+#define TWL4030_HSL_GAIN_MINUS_6DB 0x03
+
+/* HS_POPN_SET (0x24) Fields */
+#define TWL4030_VMID_EN 0x40
+#define TWL4030_EXTMUTE 0x20
+#define TWL4030_RAMP_DELAY 0x1C
+#define TWL4030_RAMP_DELAY_20MS 0x00
+#define TWL4030_RAMP_DELAY_40MS 0x04
+#define TWL4030_RAMP_DELAY_81MS 0x08
+#define TWL4030_RAMP_DELAY_161MS 0x0C
+#define TWL4030_RAMP_DELAY_323MS 0x10
+#define TWL4030_RAMP_DELAY_645MS 0x14
+#define TWL4030_RAMP_DELAY_1291MS 0x18
+#define TWL4030_RAMP_DELAY_2581MS 0x1C
+#define TWL4030_RAMP_EN 0x02
+
+/* PREDL_CTL (0x25) */
+#define TWL4030_PREDL_GAIN 0x30
+
+/* PREDR_CTL (0x26) */
+#define TWL4030_PREDR_GAIN 0x30
+
+/* PRECKL_CTL (0x27) */
+#define TWL4030_PRECKL_GAIN 0x30
+
+/* PRECKR_CTL (0x28) */
+#define TWL4030_PRECKR_GAIN 0x30
+
+/* HFL_CTL (0x29, 0x2A) Fields */
+#define TWL4030_HF_CTL_HB_EN 0x04
+#define TWL4030_HF_CTL_LOOP_EN 0x08
+#define TWL4030_HF_CTL_RAMP_EN 0x10
+#define TWL4030_HF_CTL_REF_EN 0x20
+
+/* APLL_CTL (0x3A) Fields */
+#define TWL4030_APLL_EN 0x10
+#define TWL4030_APLL_INFREQ 0x0F
+#define TWL4030_APLL_INFREQ_19200KHZ 0x05
+#define TWL4030_APLL_INFREQ_26000KHZ 0x06
+#define TWL4030_APLL_INFREQ_38400KHZ 0x0F
+
+/* REG_MISC_SET_1 (0x3E) Fields */
+#define TWL4030_CLK64_EN 0x80
+#define TWL4030_SCRAMBLE_EN 0x40
+#define TWL4030_FMLOOP_EN 0x20
+#define TWL4030_SMOOTH_ANAVOL_EN 0x02
+#define TWL4030_DIGMIC_LR_SWAP_EN 0x01
+
+/* VIBRA_CTL (0x45) */
+#define TWL4030_VIBRA_EN 0x01
+#define TWL4030_VIBRA_DIR 0x02
+#define TWL4030_VIBRA_AUDIO_SEL_L1 (0x00 << 2)
+#define TWL4030_VIBRA_AUDIO_SEL_R1 (0x01 << 2)
+#define TWL4030_VIBRA_AUDIO_SEL_L2 (0x02 << 2)
+#define TWL4030_VIBRA_AUDIO_SEL_R2 (0x03 << 2)
+#define TWL4030_VIBRA_SEL 0x10
+#define TWL4030_VIBRA_DIR_SEL 0x20
+
+/* TWL4030 codec resource IDs */
+enum twl4030_codec_res {
+ TWL4030_CODEC_RES_POWER = 0,
+ TWL4030_CODEC_RES_APLL,
+ TWL4030_CODEC_RES_MAX,
+};
+
+int twl4030_codec_disable_resource(enum twl4030_codec_res id);
+int twl4030_codec_enable_resource(enum twl4030_codec_res id);
+
+#endif /* End of __TWL4030_CODEC_H__ */
projects / platform / kernel / linux-stable.git / commitdiff