| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Ricard Wanderlöf | 7903 | 99.23% | 3 | 25.00% |
| Yang Yingliang | 25 | 0.31% | 1 | 8.33% |
| Stephen Kitt | 10 | 0.13% | 1 | 8.33% |
| Charles Keepax | 10 | 0.13% | 1 | 8.33% |
| Hui Tang | 8 | 0.10% | 1 | 8.33% |
| Geert Uytterhoeven | 3 | 0.04% | 1 | 8.33% |
| Antoine Gennart | 2 | 0.03% | 1 | 8.33% |
| Uwe Kleine-König | 2 | 0.03% | 2 | 16.67% |
| Mark Brown | 1 | 0.01% | 1 | 8.33% |
| Total | 7964 | 12 |
// SPDX-License-Identifier: GPL-2.0-only // // Based on sound/soc/codecs/tlv320aic3x.c by Vladimir Barinov // // Copyright (C) 2010 Mistral Solutions Pvt Ltd. // Author: Shahina Shaik <shahina.s@mistralsolutions.com> // // Copyright (C) 2014-2018, Ambarella, Inc. // Author: Dongge wu <dgwu@ambarella.com> // // Copyright (C) 2021 Axis Communications AB // Author: Ricard Wanderlof <ricardw@axis.com> // #include <dt-bindings/sound/tlv320adc3xxx.h> #include <linux/clk.h> #include <linux/gpio/consumer.h> #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/io.h> #include <linux/init.h> #include <linux/delay.h> #include <linux/gpio/driver.h> #include <linux/pm.h> #include <linux/i2c.h> #include <linux/platform_device.h> #include <linux/cdev.h> #include <linux/of_gpio.h> #include <linux/slab.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/pcm_params.h> #include <sound/soc.h> #include <sound/soc-dapm.h> #include <sound/tlv.h> #include <sound/initval.h> /* * General definitions defining exported functionality. */ #define ADC3XXX_MICBIAS_PINS 2 /* Number of GPIO pins exposed via the gpiolib interface */ #define ADC3XXX_GPIOS_MAX 2 #define ADC3XXX_RATES SNDRV_PCM_RATE_8000_96000 #define ADC3XXX_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \ SNDRV_PCM_FMTBIT_S20_3LE | \ SNDRV_PCM_FMTBIT_S24_3LE | \ SNDRV_PCM_FMTBIT_S32_LE) /* * PLL modes, to be used for clk_id for set_sysclk callback. * * The default behavior (AUTO) is to take the first matching entry in the clock * table, which is intended to be the PLL based one if there is more than one. * * Setting the clock source using simple-card (clocks or * system-clock-frequency property) sets clk_id = 0 = ADC3XXX_PLL_AUTO. */ #define ADC3XXX_PLL_AUTO 0 /* Use first available mode */ #define ADC3XXX_PLL_ENABLE 1 /* Use PLL for clock generation */ #define ADC3XXX_PLL_BYPASS 2 /* Don't use PLL for clock generation */ /* Register definitions. */ #define ADC3XXX_PAGE_SIZE 128 #define ADC3XXX_REG(page, reg) ((page * ADC3XXX_PAGE_SIZE) + reg) /* * Page 0 registers. */ #define ADC3XXX_PAGE_SELECT ADC3XXX_REG(0, 0) #define ADC3XXX_RESET ADC3XXX_REG(0, 1) /* 2-3 Reserved */ #define ADC3XXX_CLKGEN_MUX ADC3XXX_REG(0, 4) #define ADC3XXX_PLL_PROG_PR ADC3XXX_REG(0, 5) #define ADC3XXX_PLL_PROG_J ADC3XXX_REG(0, 6) #define ADC3XXX_PLL_PROG_D_MSB ADC3XXX_REG(0, 7) #define ADC3XXX_PLL_PROG_D_LSB ADC3XXX_REG(0, 8) /* 9-17 Reserved */ #define ADC3XXX_ADC_NADC ADC3XXX_REG(0, 18) #define ADC3XXX_ADC_MADC ADC3XXX_REG(0, 19) #define ADC3XXX_ADC_AOSR ADC3XXX_REG(0, 20) #define ADC3XXX_ADC_IADC ADC3XXX_REG(0, 21) /* 23-24 Reserved */ #define ADC3XXX_CLKOUT_MUX ADC3XXX_REG(0, 25) #define ADC3XXX_CLKOUT_M_DIV ADC3XXX_REG(0, 26) #define ADC3XXX_INTERFACE_CTRL_1 ADC3XXX_REG(0, 27) #define ADC3XXX_CH_OFFSET_1 ADC3XXX_REG(0, 28) #define ADC3XXX_INTERFACE_CTRL_2 ADC3XXX_REG(0, 29) #define ADC3XXX_BCLK_N_DIV ADC3XXX_REG(0, 30) #define ADC3XXX_INTERFACE_CTRL_3 ADC3XXX_REG(0, 31) #define ADC3XXX_INTERFACE_CTRL_4 ADC3XXX_REG(0, 32) #define ADC3XXX_INTERFACE_CTRL_5 ADC3XXX_REG(0, 33) #define ADC3XXX_I2S_SYNC ADC3XXX_REG(0, 34) /* 35 Reserved */ #define ADC3XXX_ADC_FLAG ADC3XXX_REG(0, 36) #define ADC3XXX_CH_OFFSET_2 ADC3XXX_REG(0, 37) #define ADC3XXX_I2S_TDM_CTRL ADC3XXX_REG(0, 38) /* 39-41 Reserved */ #define ADC3XXX_INTR_FLAG_1 ADC3XXX_REG(0, 42) #define ADC3XXX_INTR_FLAG_2 ADC3XXX_REG(0, 43) /* 44 Reserved */ #define ADC3XXX_INTR_FLAG_ADC1 ADC3XXX_REG(0, 45) /* 46 Reserved */ #define ADC3XXX_INTR_FLAG_ADC2 ADC3XXX_REG(0, 47) #define ADC3XXX_INT1_CTRL ADC3XXX_REG(0, 48) #define ADC3XXX_INT2_CTRL ADC3XXX_REG(0, 49) /* 50 Reserved */ #define ADC3XXX_GPIO2_CTRL ADC3XXX_REG(0, 51) #define ADC3XXX_GPIO1_CTRL ADC3XXX_REG(0, 52) #define ADC3XXX_DOUT_CTRL ADC3XXX_REG(0, 53) /* 54-56 Reserved */ #define ADC3XXX_SYNC_CTRL_1 ADC3XXX_REG(0, 57) #define ADC3XXX_SYNC_CTRL_2 ADC3XXX_REG(0, 58) #define ADC3XXX_CIC_GAIN_CTRL ADC3XXX_REG(0, 59) /* 60 Reserved */ #define ADC3XXX_PRB_SELECT ADC3XXX_REG(0, 61) #define ADC3XXX_INST_MODE_CTRL ADC3XXX_REG(0, 62) /* 63-79 Reserved */ #define ADC3XXX_MIC_POLARITY_CTRL ADC3XXX_REG(0, 80) #define ADC3XXX_ADC_DIGITAL ADC3XXX_REG(0, 81) #define ADC3XXX_ADC_FGA ADC3XXX_REG(0, 82) #define ADC3XXX_LADC_VOL ADC3XXX_REG(0, 83) #define ADC3XXX_RADC_VOL ADC3XXX_REG(0, 84) #define ADC3XXX_ADC_PHASE_COMP ADC3XXX_REG(0, 85) #define ADC3XXX_LEFT_CHN_AGC_1 ADC3XXX_REG(0, 86) #define ADC3XXX_LEFT_CHN_AGC_2 ADC3XXX_REG(0, 87) #define ADC3XXX_LEFT_CHN_AGC_3 ADC3XXX_REG(0, 88) #define ADC3XXX_LEFT_CHN_AGC_4 ADC3XXX_REG(0, 89) #define ADC3XXX_LEFT_CHN_AGC_5 ADC3XXX_REG(0, 90) #define ADC3XXX_LEFT_CHN_AGC_6 ADC3XXX_REG(0, 91) #define ADC3XXX_LEFT_CHN_AGC_7 ADC3XXX_REG(0, 92) #define ADC3XXX_LEFT_AGC_GAIN ADC3XXX_REG(0, 93) #define ADC3XXX_RIGHT_CHN_AGC_1 ADC3XXX_REG(0, 94) #define ADC3XXX_RIGHT_CHN_AGC_2 ADC3XXX_REG(0, 95) #define ADC3XXX_RIGHT_CHN_AGC_3 ADC3XXX_REG(0, 96) #define ADC3XXX_RIGHT_CHN_AGC_4 ADC3XXX_REG(0, 97) #define ADC3XXX_RIGHT_CHN_AGC_5 ADC3XXX_REG(0, 98) #define ADC3XXX_RIGHT_CHN_AGC_6 ADC3XXX_REG(0, 99) #define ADC3XXX_RIGHT_CHN_AGC_7 ADC3XXX_REG(0, 100) #define ADC3XXX_RIGHT_AGC_GAIN ADC3XXX_REG(0, 101) /* 102-127 Reserved */ /* * Page 1 registers. */ /* 1-25 Reserved */ #define ADC3XXX_DITHER_CTRL ADC3XXX_REG(1, 26) /* 27-50 Reserved */ #define ADC3XXX_MICBIAS_CTRL ADC3XXX_REG(1, 51) #define ADC3XXX_LEFT_PGA_SEL_1 ADC3XXX_REG(1, 52) /* 53 Reserved */ #define ADC3XXX_LEFT_PGA_SEL_2 ADC3XXX_REG(1, 54) #define ADC3XXX_RIGHT_PGA_SEL_1 ADC3XXX_REG(1, 55) #define ADC3XXX_RIGHT_PGA_SEL_2 ADC3XXX_REG(1, 57) #define ADC3XXX_LEFT_APGA_CTRL ADC3XXX_REG(1, 59) #define ADC3XXX_RIGHT_APGA_CTRL ADC3XXX_REG(1, 60) #define ADC3XXX_LOW_CURRENT_MODES ADC3XXX_REG(1, 61) #define ADC3XXX_ANALOG_PGA_FLAGS ADC3XXX_REG(1, 62) /* 63-127 Reserved */ /* * Page 4 registers. First page of coefficient memory for the miniDSP. */ #define ADC3XXX_LEFT_ADC_IIR_COEFF_N0_MSB ADC3XXX_REG(4, 8) #define ADC3XXX_LEFT_ADC_IIR_COEFF_N0_LSB ADC3XXX_REG(4, 9) #define ADC3XXX_LEFT_ADC_IIR_COEFF_N1_MSB ADC3XXX_REG(4, 10) #define ADC3XXX_LEFT_ADC_IIR_COEFF_N1_LSB ADC3XXX_REG(4, 11) #define ADC3XXX_LEFT_ADC_IIR_COEFF_D1_MSB ADC3XXX_REG(4, 12) #define ADC3XXX_LEFT_ADC_IIR_COEFF_D1_LSB ADC3XXX_REG(4, 13) #define ADC3XXX_RIGHT_ADC_IIR_COEFF_N0_MSB ADC3XXX_REG(4, 72) #define ADC3XXX_RIGHT_ADC_IIR_COEFF_N0_LSB ADC3XXX_REG(4, 73) #define ADC3XXX_RIGHT_ADC_IIR_COEFF_N1_MSB ADC3XXX_REG(4, 74) #define ADC3XXX_RIGHT_ADC_IIR_COEFF_N1_LSB ADC3XXX_REG(4, 75) #define ADC3XXX_RIGHT_ADC_IIR_COEFF_D1_MSB ADC3XXX_REG(4, 76) #define ADC3XXX_RIGHT_ADC_IIR_COEFF_D1_LSB ADC3XXX_REG(4, 77) /* * Register bits. */ /* PLL Enable bits */ #define ADC3XXX_ENABLE_PLL_SHIFT 7 #define ADC3XXX_ENABLE_PLL (1 << ADC3XXX_ENABLE_PLL_SHIFT) #define ADC3XXX_ENABLE_NADC_SHIFT 7 #define ADC3XXX_ENABLE_NADC (1 << ADC3XXX_ENABLE_NADC_SHIFT) #define ADC3XXX_ENABLE_MADC_SHIFT 7 #define ADC3XXX_ENABLE_MADC (1 << ADC3XXX_ENABLE_MADC_SHIFT) #define ADC3XXX_ENABLE_BCLK_SHIFT 7 #define ADC3XXX_ENABLE_BCLK (1 << ADC3XXX_ENABLE_BCLK_SHIFT) /* Power bits */ #define ADC3XXX_LADC_PWR_ON 0x80 #define ADC3XXX_RADC_PWR_ON 0x40 #define ADC3XXX_SOFT_RESET 0x01 #define ADC3XXX_BCLK_MASTER 0x08 #define ADC3XXX_WCLK_MASTER 0x04 /* Interface register masks */ #define ADC3XXX_FORMAT_MASK 0xc0 #define ADC3XXX_FORMAT_SHIFT 6 #define ADC3XXX_WLENGTH_MASK 0x30 #define ADC3XXX_WLENGTH_SHIFT 4 #define ADC3XXX_CLKDIR_MASK 0x0c #define ADC3XXX_CLKDIR_SHIFT 2 /* Interface register bit patterns */ #define ADC3XXX_FORMAT_I2S (0 << ADC3XXX_FORMAT_SHIFT) #define ADC3XXX_FORMAT_DSP (1 << ADC3XXX_FORMAT_SHIFT) #define ADC3XXX_FORMAT_RJF (2 << ADC3XXX_FORMAT_SHIFT) #define ADC3XXX_FORMAT_LJF (3 << ADC3XXX_FORMAT_SHIFT) #define ADC3XXX_IFACE_16BITS (0 << ADC3XXX_WLENGTH_SHIFT) #define ADC3XXX_IFACE_20BITS (1 << ADC3XXX_WLENGTH_SHIFT) #define ADC3XXX_IFACE_24BITS (2 << ADC3XXX_WLENGTH_SHIFT) #define ADC3XXX_IFACE_32BITS (3 << ADC3XXX_WLENGTH_SHIFT) /* PLL P/R bit offsets */ #define ADC3XXX_PLLP_SHIFT 4 #define ADC3XXX_PLLR_SHIFT 0 #define ADC3XXX_PLL_PR_MASK 0x7f #define ADC3XXX_PLLJ_MASK 0x3f #define ADC3XXX_PLLD_MSB_MASK 0x3f #define ADC3XXX_PLLD_LSB_MASK 0xff #define ADC3XXX_NADC_MASK 0x7f #define ADC3XXX_MADC_MASK 0x7f #define ADC3XXX_AOSR_MASK 0xff #define ADC3XXX_IADC_MASK 0xff #define ADC3XXX_BDIV_MASK 0x7f /* PLL_CLKIN bits */ #define ADC3XXX_PLL_CLKIN_SHIFT 2 #define ADC3XXX_PLL_CLKIN_MCLK 0x0 #define ADC3XXX_PLL_CLKIN_BCLK 0x1 #define ADC3XXX_PLL_CLKIN_ZERO 0x3 /* CODEC_CLKIN bits */ #define ADC3XXX_CODEC_CLKIN_SHIFT 0 #define ADC3XXX_CODEC_CLKIN_MCLK 0x0 #define ADC3XXX_CODEC_CLKIN_BCLK 0x1 #define ADC3XXX_CODEC_CLKIN_PLL_CLK 0x3 #define ADC3XXX_USE_PLL ((ADC3XXX_PLL_CLKIN_MCLK << ADC3XXX_PLL_CLKIN_SHIFT) | \ (ADC3XXX_CODEC_CLKIN_PLL_CLK << ADC3XXX_CODEC_CLKIN_SHIFT)) #define ADC3XXX_NO_PLL ((ADC3XXX_PLL_CLKIN_ZERO << ADC3XXX_PLL_CLKIN_SHIFT) | \ (ADC3XXX_CODEC_CLKIN_MCLK << ADC3XXX_CODEC_CLKIN_SHIFT)) /* Analog PGA control bits */ #define ADC3XXX_LPGA_MUTE 0x80 #define ADC3XXX_RPGA_MUTE 0x80 #define ADC3XXX_LPGA_GAIN_MASK 0x7f #define ADC3XXX_RPGA_GAIN_MASK 0x7f /* ADC current modes */ #define ADC3XXX_ADC_LOW_CURR_MODE 0x01 /* Left ADC Input selection bits */ #define ADC3XXX_LCH_SEL1_SHIFT 0 #define ADC3XXX_LCH_SEL2_SHIFT 2 #define ADC3XXX_LCH_SEL3_SHIFT 4 #define ADC3XXX_LCH_SEL4_SHIFT 6 #define ADC3XXX_LCH_SEL1X_SHIFT 0 #define ADC3XXX_LCH_SEL2X_SHIFT 2 #define ADC3XXX_LCH_SEL3X_SHIFT 4 #define ADC3XXX_LCH_COMMON_MODE 0x40 #define ADC3XXX_BYPASS_LPGA 0x80 /* Right ADC Input selection bits */ #define ADC3XXX_RCH_SEL1_SHIFT 0 #define ADC3XXX_RCH_SEL2_SHIFT 2 #define ADC3XXX_RCH_SEL3_SHIFT 4 #define ADC3XXX_RCH_SEL4_SHIFT 6 #define ADC3XXX_RCH_SEL1X_SHIFT 0 #define ADC3XXX_RCH_SEL2X_SHIFT 2 #define ADC3XXX_RCH_SEL3X_SHIFT 4 #define ADC3XXX_RCH_COMMON_MODE 0x40 #define ADC3XXX_BYPASS_RPGA 0x80 /* MICBIAS control bits */ #define ADC3XXX_MICBIAS_MASK 0x3 #define ADC3XXX_MICBIAS1_SHIFT 5 #define ADC3XXX_MICBIAS2_SHIFT 3 #define ADC3XXX_ADC_MAX_VOLUME 64 #define ADC3XXX_ADC_POS_VOL 24 /* GPIO control bits (GPIO1_CTRL and GPIO2_CTRL) */ #define ADC3XXX_GPIO_CTRL_CFG_MASK 0x3c #define ADC3XXX_GPIO_CTRL_CFG_SHIFT 2 #define ADC3XXX_GPIO_CTRL_OUTPUT_CTRL_MASK 0x01 #define ADC3XXX_GPIO_CTRL_OUTPUT_CTRL_SHIFT 0 #define ADC3XXX_GPIO_CTRL_INPUT_VALUE_MASK 0x02 #define ADC3XXX_GPIO_CTRL_INPUT_VALUE_SHIFT 1 enum adc3xxx_type { ADC3001 = 0, ADC3101 }; struct adc3xxx { struct device *dev; enum adc3xxx_type type; struct clk *mclk; struct regmap *regmap; struct gpio_desc *rst_pin; unsigned int pll_mode; unsigned int sysclk; unsigned int gpio_cfg[ADC3XXX_GPIOS_MAX]; /* value+1 (0 => not set) */ unsigned int micbias_vg[ADC3XXX_MICBIAS_PINS]; int master; u8 page_no; int use_pll; struct gpio_chip gpio_chip; }; static const unsigned int adc3xxx_gpio_ctrl_reg[ADC3XXX_GPIOS_MAX] = { ADC3XXX_GPIO1_CTRL, ADC3XXX_GPIO2_CTRL }; static const unsigned int adc3xxx_micbias_shift[ADC3XXX_MICBIAS_PINS] = { ADC3XXX_MICBIAS1_SHIFT, ADC3XXX_MICBIAS2_SHIFT }; static const struct reg_default adc3xxx_defaults[] = { /* Page 0 */ { 0, 0x00 }, { 1, 0x00 }, { 2, 0x00 }, { 3, 0x00 }, { 4, 0x00 }, { 5, 0x11 }, { 6, 0x04 }, { 7, 0x00 }, { 8, 0x00 }, { 9, 0x00 }, { 10, 0x00 }, { 11, 0x00 }, { 12, 0x00 }, { 13, 0x00 }, { 14, 0x00 }, { 15, 0x00 }, { 16, 0x00 }, { 17, 0x00 }, { 18, 0x01 }, { 19, 0x01 }, { 20, 0x80 }, { 21, 0x80 }, { 22, 0x04 }, { 23, 0x00 }, { 24, 0x00 }, { 25, 0x00 }, { 26, 0x01 }, { 27, 0x00 }, { 28, 0x00 }, { 29, 0x02 }, { 30, 0x01 }, { 31, 0x00 }, { 32, 0x00 }, { 33, 0x10 }, { 34, 0x00 }, { 35, 0x00 }, { 36, 0x00 }, { 37, 0x00 }, { 38, 0x02 }, { 39, 0x00 }, { 40, 0x00 }, { 41, 0x00 }, { 42, 0x00 }, { 43, 0x00 }, { 44, 0x00 }, { 45, 0x00 }, { 46, 0x00 }, { 47, 0x00 }, { 48, 0x00 }, { 49, 0x00 }, { 50, 0x00 }, { 51, 0x00 }, { 52, 0x00 }, { 53, 0x12 }, { 54, 0x00 }, { 55, 0x00 }, { 56, 0x00 }, { 57, 0x00 }, { 58, 0x00 }, { 59, 0x44 }, { 60, 0x00 }, { 61, 0x01 }, { 62, 0x00 }, { 63, 0x00 }, { 64, 0x00 }, { 65, 0x00 }, { 66, 0x00 }, { 67, 0x00 }, { 68, 0x00 }, { 69, 0x00 }, { 70, 0x00 }, { 71, 0x00 }, { 72, 0x00 }, { 73, 0x00 }, { 74, 0x00 }, { 75, 0x00 }, { 76, 0x00 }, { 77, 0x00 }, { 78, 0x00 }, { 79, 0x00 }, { 80, 0x00 }, { 81, 0x00 }, { 82, 0x88 }, { 83, 0x00 }, { 84, 0x00 }, { 85, 0x00 }, { 86, 0x00 }, { 87, 0x00 }, { 88, 0x7f }, { 89, 0x00 }, { 90, 0x00 }, { 91, 0x00 }, { 92, 0x00 }, { 93, 0x00 }, { 94, 0x00 }, { 95, 0x00 }, { 96, 0x7f }, { 97, 0x00 }, { 98, 0x00 }, { 99, 0x00 }, { 100, 0x00 }, { 101, 0x00 }, { 102, 0x00 }, { 103, 0x00 }, { 104, 0x00 }, { 105, 0x00 }, { 106, 0x00 }, { 107, 0x00 }, { 108, 0x00 }, { 109, 0x00 }, { 110, 0x00 }, { 111, 0x00 }, { 112, 0x00 }, { 113, 0x00 }, { 114, 0x00 }, { 115, 0x00 }, { 116, 0x00 }, { 117, 0x00 }, { 118, 0x00 }, { 119, 0x00 }, { 120, 0x00 }, { 121, 0x00 }, { 122, 0x00 }, { 123, 0x00 }, { 124, 0x00 }, { 125, 0x00 }, { 126, 0x00 }, { 127, 0x00 }, /* Page 1 */ { 128, 0x00 }, { 129, 0x00 }, { 130, 0x00 }, { 131, 0x00 }, { 132, 0x00 }, { 133, 0x00 }, { 134, 0x00 }, { 135, 0x00 }, { 136, 0x00 }, { 137, 0x00 }, { 138, 0x00 }, { 139, 0x00 }, { 140, 0x00 }, { 141, 0x00 }, { 142, 0x00 }, { 143, 0x00 }, { 144, 0x00 }, { 145, 0x00 }, { 146, 0x00 }, { 147, 0x00 }, { 148, 0x00 }, { 149, 0x00 }, { 150, 0x00 }, { 151, 0x00 }, { 152, 0x00 }, { 153, 0x00 }, { 154, 0x00 }, { 155, 0x00 }, { 156, 0x00 }, { 157, 0x00 }, { 158, 0x00 }, { 159, 0x00 }, { 160, 0x00 }, { 161, 0x00 }, { 162, 0x00 }, { 163, 0x00 }, { 164, 0x00 }, { 165, 0x00 }, { 166, 0x00 }, { 167, 0x00 }, { 168, 0x00 }, { 169, 0x00 }, { 170, 0x00 }, { 171, 0x00 }, { 172, 0x00 }, { 173, 0x00 }, { 174, 0x00 }, { 175, 0x00 }, { 176, 0x00 }, { 177, 0x00 }, { 178, 0x00 }, { 179, 0x00 }, { 180, 0xff }, { 181, 0x00 }, { 182, 0x3f }, { 183, 0xff }, { 184, 0x00 }, { 185, 0x3f }, { 186, 0x00 }, { 187, 0x80 }, { 188, 0x80 }, { 189, 0x00 }, { 190, 0x00 }, { 191, 0x00 }, /* Page 4 */ { 1024, 0x00 }, { 1026, 0x01 }, { 1027, 0x17 }, { 1028, 0x01 }, { 1029, 0x17 }, { 1030, 0x7d }, { 1031, 0xd3 }, { 1032, 0x7f }, { 1033, 0xff }, { 1034, 0x00 }, { 1035, 0x00 }, { 1036, 0x00 }, { 1037, 0x00 }, { 1038, 0x7f }, { 1039, 0xff }, { 1040, 0x00 }, { 1041, 0x00 }, { 1042, 0x00 }, { 1043, 0x00 }, { 1044, 0x00 }, { 1045, 0x00 }, { 1046, 0x00 }, { 1047, 0x00 }, { 1048, 0x7f }, { 1049, 0xff }, { 1050, 0x00 }, { 1051, 0x00 }, { 1052, 0x00 }, { 1053, 0x00 }, { 1054, 0x00 }, { 1055, 0x00 }, { 1056, 0x00 }, { 1057, 0x00 }, { 1058, 0x7f }, { 1059, 0xff }, { 1060, 0x00 }, { 1061, 0x00 }, { 1062, 0x00 }, { 1063, 0x00 }, { 1064, 0x00 }, { 1065, 0x00 }, { 1066, 0x00 }, { 1067, 0x00 }, { 1068, 0x7f }, { 1069, 0xff }, { 1070, 0x00 }, { 1071, 0x00 }, { 1072, 0x00 }, { 1073, 0x00 }, { 1074, 0x00 }, { 1075, 0x00 }, { 1076, 0x00 }, { 1077, 0x00 }, { 1078, 0x7f }, { 1079, 0xff }, { 1080, 0x00 }, { 1081, 0x00 }, { 1082, 0x00 }, { 1083, 0x00 }, { 1084, 0x00 }, { 1085, 0x00 }, { 1086, 0x00 }, { 1087, 0x00 }, { 1088, 0x00 }, { 1089, 0x00 }, { 1090, 0x00 }, { 1091, 0x00 }, { 1092, 0x00 }, { 1093, 0x00 }, { 1094, 0x00 }, { 1095, 0x00 }, { 1096, 0x00 }, { 1097, 0x00 }, { 1098, 0x00 }, { 1099, 0x00 }, { 1100, 0x00 }, { 1101, 0x00 }, { 1102, 0x00 }, { 1103, 0x00 }, { 1104, 0x00 }, { 1105, 0x00 }, { 1106, 0x00 }, { 1107, 0x00 }, { 1108, 0x00 }, { 1109, 0x00 }, { 1110, 0x00 }, { 1111, 0x00 }, { 1112, 0x00 }, { 1113, 0x00 }, { 1114, 0x00 }, { 1115, 0x00 }, { 1116, 0x00 }, { 1117, 0x00 }, { 1118, 0x00 }, { 1119, 0x00 }, { 1120, 0x00 }, { 1121, 0x00 }, { 1122, 0x00 }, { 1123, 0x00 }, { 1124, 0x00 }, { 1125, 0x00 }, { 1126, 0x00 }, { 1127, 0x00 }, { 1128, 0x00 }, { 1129, 0x00 }, { 1130, 0x00 }, { 1131, 0x00 }, { 1132, 0x00 }, { 1133, 0x00 }, { 1134, 0x00 }, { 1135, 0x00 }, { 1136, 0x00 }, { 1137, 0x00 }, { 1138, 0x00 }, { 1139, 0x00 }, { 1140, 0x00 }, { 1141, 0x00 }, { 1142, 0x00 }, { 1143, 0x00 }, { 1144, 0x00 }, { 1145, 0x00 }, { 1146, 0x00 }, { 1147, 0x00 }, { 1148, 0x00 }, { 1149, 0x00 }, { 1150, 0x00 }, { 1151, 0x00 }, }; static bool adc3xxx_volatile_reg(struct device *dev, unsigned int reg) { switch (reg) { case ADC3XXX_RESET: return true; default: return false; } } static const struct regmap_range_cfg adc3xxx_ranges[] = { { .range_min = 0, .range_max = 5 * ADC3XXX_PAGE_SIZE, .selector_reg = ADC3XXX_PAGE_SELECT, .selector_mask = 0xff, .selector_shift = 0, .window_start = 0, .window_len = ADC3XXX_PAGE_SIZE, } }; static const struct regmap_config adc3xxx_regmap = { .reg_bits = 8, .val_bits = 8, .reg_defaults = adc3xxx_defaults, .num_reg_defaults = ARRAY_SIZE(adc3xxx_defaults), .volatile_reg = adc3xxx_volatile_reg, .cache_type = REGCACHE_RBTREE, .ranges = adc3xxx_ranges, .num_ranges = ARRAY_SIZE(adc3xxx_ranges), .max_register = 5 * ADC3XXX_PAGE_SIZE, }; struct adc3xxx_rate_divs { u32 mclk; u32 rate; u8 pll_p; u8 pll_r; u8 pll_j; u16 pll_d; u8 nadc; u8 madc; u8 aosr; }; /* * PLL and Clock settings. * If p member is 0, PLL is not used. * The order of the entries in this table have the PLL entries before * the non-PLL entries, so that the PLL modes are preferred unless * the PLL mode setting says otherwise. */ static const struct adc3xxx_rate_divs adc3xxx_divs[] = { /* mclk, rate, p, r, j, d, nadc, madc, aosr */ /* 8k rate */ { 12000000, 8000, 1, 1, 7, 1680, 42, 2, 128 }, { 12288000, 8000, 1, 1, 7, 0000, 42, 2, 128 }, /* 11.025k rate */ { 12000000, 11025, 1, 1, 6, 8208, 29, 2, 128 }, /* 16k rate */ { 12000000, 16000, 1, 1, 7, 1680, 21, 2, 128 }, { 12288000, 16000, 1, 1, 7, 0000, 21, 2, 128 }, /* 22.05k rate */ { 12000000, 22050, 1, 1, 7, 560, 15, 2, 128 }, /* 32k rate */ { 12000000, 32000, 1, 1, 8, 1920, 12, 2, 128 }, { 12288000, 32000, 1, 1, 8, 0000, 12, 2, 128 }, /* 44.1k rate */ { 12000000, 44100, 1, 1, 7, 5264, 8, 2, 128 }, /* 48k rate */ { 12000000, 48000, 1, 1, 7, 1680, 7, 2, 128 }, { 12288000, 48000, 1, 1, 7, 0000, 7, 2, 128 }, { 24576000, 48000, 1, 1, 3, 5000, 7, 2, 128 }, /* With PLL */ { 24576000, 48000, 0, 0, 0, 0000, 2, 2, 128 }, /* Without PLL */ /* 88.2k rate */ { 12000000, 88200, 1, 1, 7, 5264, 4, 4, 64 }, /* 96k rate */ { 12000000, 96000, 1, 1, 8, 1920, 4, 4, 64 }, }; static int adc3xxx_get_divs(struct device *dev, int mclk, int rate, int pll_mode) { int i; dev_dbg(dev, "mclk = %d, rate = %d, clock mode %u\n", mclk, rate, pll_mode); for (i = 0; i < ARRAY_SIZE(adc3xxx_divs); i++) { const struct adc3xxx_rate_divs *mode = &adc3xxx_divs[i]; /* Skip this entry if it doesn't fulfill the intended clock * mode requirement. We consider anything besides the two * modes below to be the same as ADC3XXX_PLL_AUTO. */ if ((pll_mode == ADC3XXX_PLL_BYPASS && mode->pll_p) || (pll_mode == ADC3XXX_PLL_ENABLE && !mode->pll_p)) continue; if (mode->rate == rate && mode->mclk == mclk) return i; } dev_info(dev, "Master clock rate %d and sample rate %d is not supported\n", mclk, rate); return -EINVAL; } static int adc3xxx_pll_delay(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { /* 10msec delay needed after PLL power-up to allow * PLL and dividers to stabilize (datasheet p13). */ usleep_range(10000, 20000); return 0; } static int adc3xxx_coefficient_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { int numcoeff = kcontrol->private_value >> 16; uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; uinfo->count = numcoeff; uinfo->value.integer.min = 0; uinfo->value.integer.max = 0xffff; /* all coefficients are 16 bit */ return 0; } static int adc3xxx_coefficient_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); int numcoeff = kcontrol->private_value >> 16; int reg = kcontrol->private_value & 0xffff; int index = 0; for (index = 0; index < numcoeff; index++) { unsigned int value_msb, value_lsb, value; value_msb = snd_soc_component_read(component, reg++); if ((int)value_msb < 0) return (int)value_msb; value_lsb = snd_soc_component_read(component, reg++); if ((int)value_lsb < 0) return (int)value_lsb; value = (value_msb << 8) | value_lsb; ucontrol->value.integer.value[index] = value; } return 0; } static int adc3xxx_coefficient_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); int numcoeff = kcontrol->private_value >> 16; int reg = kcontrol->private_value & 0xffff; int index = 0; int ret; for (index = 0; index < numcoeff; index++) { unsigned int value = ucontrol->value.integer.value[index]; unsigned int value_msb = (value >> 8) & 0xff; unsigned int value_lsb = value & 0xff; ret = snd_soc_component_write(component, reg++, value_msb); if (ret) return ret; ret = snd_soc_component_write(component, reg++, value_lsb); if (ret) return ret; } return 0; } /* All on-chip filters have coefficients which are expressed in terms of * 16 bit values, so represent them as strings of 16-bit integers. */ #define TI_COEFFICIENTS(xname, reg, numcoeffs) { \ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ .name = xname, \ .info = adc3xxx_coefficient_info, \ .get = adc3xxx_coefficient_get,\ .put = adc3xxx_coefficient_put, \ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, \ .private_value = reg | (numcoeffs << 16) \ } static const char * const adc_softstepping_text[] = { "1 step", "2 step", "off" }; static SOC_ENUM_SINGLE_DECL(adc_softstepping_enum, ADC3XXX_ADC_DIGITAL, 0, adc_softstepping_text); static const char * const multiplier_text[] = { "1", "2", "4", "8", "16", "32", "64", "128" }; static SOC_ENUM_SINGLE_DECL(left_agc_attack_mult_enum, ADC3XXX_LEFT_CHN_AGC_4, 0, multiplier_text); static SOC_ENUM_SINGLE_DECL(right_agc_attack_mult_enum, ADC3XXX_RIGHT_CHN_AGC_4, 0, multiplier_text); static SOC_ENUM_SINGLE_DECL(left_agc_decay_mult_enum, ADC3XXX_LEFT_CHN_AGC_5, 0, multiplier_text); static SOC_ENUM_SINGLE_DECL(right_agc_decay_mult_enum, ADC3XXX_RIGHT_CHN_AGC_5, 0, multiplier_text); static const char * const dither_dc_offset_text[] = { "0mV", "15mV", "30mV", "45mV", "60mV", "75mV", "90mV", "105mV", "-15mV", "-30mV", "-45mV", "-60mV", "-75mV", "-90mV", "-105mV" }; static const unsigned int dither_dc_offset_values[] = { 0, 1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14, 15 }; static SOC_VALUE_ENUM_DOUBLE_DECL(dither_dc_offset_enum, ADC3XXX_DITHER_CTRL, 4, 0, 0xf, dither_dc_offset_text, dither_dc_offset_values); static const DECLARE_TLV_DB_SCALE(pga_tlv, 0, 50, 0); static const DECLARE_TLV_DB_SCALE(adc_tlv, -1200, 50, 0); static const DECLARE_TLV_DB_SCALE(adc_fine_tlv, -40, 10, 0); /* AGC target: 8 values: -5.5, -8, -10, -12, -14, -17, -20, -24 dB */ /* It would be nice to declare these in the order above, but empirically * TLV_DB_SCALE_ITEM doesn't take lightly to the increment (second) parameter * being negative, despite there being examples to the contrary in other * drivers. So declare these in the order from lowest to highest, and * set the invert flag in the SOC_DOUBLE_R_TLV declaration instead. */ static const DECLARE_TLV_DB_RANGE(agc_target_tlv, 0, 0, TLV_DB_SCALE_ITEM(-2400, 0, 0), 1, 3, TLV_DB_SCALE_ITEM(-2000, 300, 0), 4, 6, TLV_DB_SCALE_ITEM(-1200, 200, 0), 7, 7, TLV_DB_SCALE_ITEM(-550, 0, 0)); /* Since the 'disabled' value (mute) is at the highest value in the dB * range (i.e. just before -32 dB) rather than the lowest, we need to resort * to using a TLV_DB_RANGE in order to get the mute value in the right place. */ static const DECLARE_TLV_DB_RANGE(agc_thresh_tlv, 0, 30, TLV_DB_SCALE_ITEM(-9000, 200, 0), 31, 31, TLV_DB_SCALE_ITEM(0, 0, 1)); /* disabled = mute */ /* AGC hysteresis: 4 values: 1, 2, 4 dB, disabled (= mute) */ static const DECLARE_TLV_DB_RANGE(agc_hysteresis_tlv, 0, 1, TLV_DB_SCALE_ITEM(100, 100, 0), 2, 2, TLV_DB_SCALE_ITEM(400, 0, 0), 3, 3, TLV_DB_SCALE_ITEM(0, 0, 1)); /* disabled = mute */ static const DECLARE_TLV_DB_SCALE(agc_max_tlv, 0, 50, 0); /* Input attenuation: -6 dB or 0 dB */ static const DECLARE_TLV_DB_SCALE(input_attenuation_tlv, -600, 600, 0); static const struct snd_kcontrol_new adc3xxx_snd_controls[] = { SOC_DOUBLE_R_TLV("PGA Capture Volume", ADC3XXX_LEFT_APGA_CTRL, ADC3XXX_RIGHT_APGA_CTRL, 0, 80, 0, pga_tlv), SOC_DOUBLE("PGA Capture Switch", ADC3XXX_ADC_FGA, 7, 3, 1, 1), SOC_DOUBLE_R("AGC Capture Switch", ADC3XXX_LEFT_CHN_AGC_1, ADC3XXX_RIGHT_CHN_AGC_1, 7, 1, 0), SOC_DOUBLE_R_TLV("AGC Target Level Capture Volume", ADC3XXX_LEFT_CHN_AGC_1, ADC3XXX_RIGHT_CHN_AGC_2, 4, 0x07, 1, agc_target_tlv), SOC_DOUBLE_R_TLV("AGC Noise Threshold Capture Volume", ADC3XXX_LEFT_CHN_AGC_2, ADC3XXX_RIGHT_CHN_AGC_2, 1, 0x1f, 1, agc_thresh_tlv), SOC_DOUBLE_R_TLV("AGC Hysteresis Capture Volume", ADC3XXX_LEFT_CHN_AGC_2, ADC3XXX_RIGHT_CHN_AGC_2, 6, 3, 0, agc_hysteresis_tlv), SOC_DOUBLE_R("AGC Clip Stepping Capture Switch", ADC3XXX_LEFT_CHN_AGC_2, ADC3XXX_RIGHT_CHN_AGC_2, 0, 1, 0), /* * Oddly enough, the data sheet says the default value * for the left/right AGC maximum gain register field * (ADC3XXX_LEFT/RIGHT_CHN_AGC_3 bits 0..6) is 0x7f = 127 * (verified empirically) even though this value (indeed, above * 0x50) is specified as 'Reserved. Do not use.' in the accompanying * table in the data sheet. */ SOC_DOUBLE_R_TLV("AGC Maximum Capture Volume", ADC3XXX_LEFT_CHN_AGC_3, ADC3XXX_RIGHT_CHN_AGC_3, 0, 0x50, 0, agc_max_tlv), SOC_DOUBLE_R("AGC Attack Time", ADC3XXX_LEFT_CHN_AGC_4, ADC3XXX_RIGHT_CHN_AGC_4, 3, 0x1f, 0), /* Would like to have the multipliers as LR pairs, but there is * no SOC_ENUM_foo which accepts two values in separate registers. */ SOC_ENUM("AGC Left Attack Time Multiplier", left_agc_attack_mult_enum), SOC_ENUM("AGC Right Attack Time Multiplier", right_agc_attack_mult_enum), SOC_DOUBLE_R("AGC Decay Time", ADC3XXX_LEFT_CHN_AGC_5, ADC3XXX_RIGHT_CHN_AGC_5, 3, 0x1f, 0), SOC_ENUM("AGC Left Decay Time Multiplier", left_agc_decay_mult_enum), SOC_ENUM("AGC Right Decay Time Multiplier", right_agc_decay_mult_enum), SOC_DOUBLE_R("AGC Noise Debounce", ADC3XXX_LEFT_CHN_AGC_6, ADC3XXX_RIGHT_CHN_AGC_6, 0, 0x1f, 0), SOC_DOUBLE_R("AGC Signal Debounce", ADC3XXX_LEFT_CHN_AGC_7, ADC3XXX_RIGHT_CHN_AGC_7, 0, 0x0f, 0), /* Read only register */ SOC_DOUBLE_R_S_TLV("AGC Applied Capture Volume", ADC3XXX_LEFT_AGC_GAIN, ADC3XXX_RIGHT_AGC_GAIN, 0, -24, 40, 6, 0, adc_tlv), /* ADC soft stepping */ SOC_ENUM("ADC Soft Stepping", adc_softstepping_enum), /* Left/Right Input attenuation */ SOC_SINGLE_TLV("Left Input IN_1L Capture Volume", ADC3XXX_LEFT_PGA_SEL_1, 0, 1, 1, input_attenuation_tlv), SOC_SINGLE_TLV("Left Input IN_2L Capture Volume", ADC3XXX_LEFT_PGA_SEL_1, 2, 1, 1, input_attenuation_tlv), SOC_SINGLE_TLV("Left Input IN_3L Capture Volume", ADC3XXX_LEFT_PGA_SEL_1, 4, 1, 1, input_attenuation_tlv), SOC_SINGLE_TLV("Left Input IN_1R Capture Volume", ADC3XXX_LEFT_PGA_SEL_2, 0, 1, 1, input_attenuation_tlv), SOC_SINGLE_TLV("Left Input DIF_2L_3L Capture Volume", ADC3XXX_LEFT_PGA_SEL_1, 6, 1, 1, input_attenuation_tlv), SOC_SINGLE_TLV("Left Input DIF_1L_1R Capture Volume", ADC3XXX_LEFT_PGA_SEL_2, 4, 1, 1, input_attenuation_tlv), SOC_SINGLE_TLV("Left Input DIF_2R_3R Capture Volume", ADC3XXX_LEFT_PGA_SEL_2, 2, 1, 1, input_attenuation_tlv), SOC_SINGLE_TLV("Right Input IN_1R Capture Volume", ADC3XXX_RIGHT_PGA_SEL_1, 0, 1, 1, input_attenuation_tlv), SOC_SINGLE_TLV("Right Input IN_2R Capture Volume", ADC3XXX_RIGHT_PGA_SEL_1, 2, 1, 1, input_attenuation_tlv), SOC_SINGLE_TLV("Right Input IN_3R Capture Volume", ADC3XXX_RIGHT_PGA_SEL_1, 4, 1, 1, input_attenuation_tlv), SOC_SINGLE_TLV("Right Input IN_1L Capture Volume", ADC3XXX_RIGHT_PGA_SEL_2, 0, 1, 1, input_attenuation_tlv), SOC_SINGLE_TLV("Right Input DIF_2R_3R Capture Volume", ADC3XXX_RIGHT_PGA_SEL_1, 6, 1, 1, input_attenuation_tlv), SOC_SINGLE_TLV("Right Input DIF_1L_1R Capture Volume", ADC3XXX_RIGHT_PGA_SEL_2, 4, 1, 1, input_attenuation_tlv), SOC_SINGLE_TLV("Right Input DIF_2L_3L Capture Volume", ADC3XXX_RIGHT_PGA_SEL_2, 2, 1, 1, input_attenuation_tlv), SOC_DOUBLE_R_S_TLV("ADC Volume Control Capture Volume", ADC3XXX_LADC_VOL, ADC3XXX_RADC_VOL, 0, -24, 40, 6, 0, adc_tlv), /* Empirically, the following doesn't work the way it's supposed * to. Values 0, -0.1, -0.2 and -0.3 dB result in the same level, and * -0.4 dB drops about 0.12 dB on a specific chip. */ SOC_DOUBLE_TLV("ADC Fine Volume Control Capture Volume", ADC3XXX_ADC_FGA, 4, 0, 4, 1, adc_fine_tlv), SOC_SINGLE("Left ADC Unselected CM Bias Capture Switch", ADC3XXX_LEFT_PGA_SEL_2, 6, 1, 0), SOC_SINGLE("Right ADC Unselected CM Bias Capture Switch", ADC3XXX_RIGHT_PGA_SEL_2, 6, 1, 0), SOC_ENUM("Dither Control DC Offset", dither_dc_offset_enum), /* Coefficient memory for miniDSP. */ /* For the default PRB_R1 processing block, the only available * filter is the first order IIR. */ TI_COEFFICIENTS("Left ADC IIR Coefficients N0 N1 D1", ADC3XXX_LEFT_ADC_IIR_COEFF_N0_MSB, 3), TI_COEFFICIENTS("Right ADC IIR Coefficients N0 N1 D1", ADC3XXX_RIGHT_ADC_IIR_COEFF_N0_MSB, 3), }; /* Left input selection, Single Ended inputs and Differential inputs */ static const struct snd_kcontrol_new left_input_mixer_controls[] = { SOC_DAPM_SINGLE("IN_1L Capture Switch", ADC3XXX_LEFT_PGA_SEL_1, 1, 0x1, 1), SOC_DAPM_SINGLE("IN_2L Capture Switch", ADC3XXX_LEFT_PGA_SEL_1, 3, 0x1, 1), SOC_DAPM_SINGLE("IN_3L Capture Switch", ADC3XXX_LEFT_PGA_SEL_1, 5, 0x1, 1), SOC_DAPM_SINGLE("DIF_2L_3L Capture Switch", ADC3XXX_LEFT_PGA_SEL_1, 7, 0x1, 1), SOC_DAPM_SINGLE("DIF_1L_1R Capture Switch", ADC3XXX_LEFT_PGA_SEL_2, 5, 0x1, 1), SOC_DAPM_SINGLE("DIF_2R_3R Capture Switch", ADC3XXX_LEFT_PGA_SEL_2, 3, 0x1, 1), SOC_DAPM_SINGLE("IN_1R Capture Switch", ADC3XXX_LEFT_PGA_SEL_2, 1, 0x1, 1), }; /* Right input selection, Single Ended inputs and Differential inputs */ static const struct snd_kcontrol_new right_input_mixer_controls[] = { SOC_DAPM_SINGLE("IN_1R Capture Switch", ADC3XXX_RIGHT_PGA_SEL_1, 1, 0x1, 1), SOC_DAPM_SINGLE("IN_2R Capture Switch", ADC3XXX_RIGHT_PGA_SEL_1, 3, 0x1, 1), SOC_DAPM_SINGLE("IN_3R Capture Switch", ADC3XXX_RIGHT_PGA_SEL_1, 5, 0x1, 1), SOC_DAPM_SINGLE("DIF_2R_3R Capture Switch", ADC3XXX_RIGHT_PGA_SEL_1, 7, 0x1, 1), SOC_DAPM_SINGLE("DIF_1L_1R Capture Switch", ADC3XXX_RIGHT_PGA_SEL_2, 5, 0x1, 1), SOC_DAPM_SINGLE("DIF_2L_3L Capture Switch", ADC3XXX_RIGHT_PGA_SEL_2, 3, 0x1, 1), SOC_DAPM_SINGLE("IN_1L Capture Switch", ADC3XXX_RIGHT_PGA_SEL_2, 1, 0x1, 1), }; /* Left Digital Mic input for left ADC */ static const struct snd_kcontrol_new left_input_dmic_controls[] = { SOC_DAPM_SINGLE("Left ADC Capture Switch", ADC3XXX_ADC_DIGITAL, 3, 0x1, 0), }; /* Right Digital Mic input for Right ADC */ static const struct snd_kcontrol_new right_input_dmic_controls[] = { SOC_DAPM_SINGLE("Right ADC Capture Switch", ADC3XXX_ADC_DIGITAL, 2, 0x1, 0), }; /* DAPM widgets */ static const struct snd_soc_dapm_widget adc3xxx_dapm_widgets[] = { /* Left Input Selection */ SND_SOC_DAPM_MIXER("Left Input", SND_SOC_NOPM, 0, 0, &left_input_mixer_controls[0], ARRAY_SIZE(left_input_mixer_controls)), /* Right Input Selection */ SND_SOC_DAPM_MIXER("Right Input", SND_SOC_NOPM, 0, 0, &right_input_mixer_controls[0], ARRAY_SIZE(right_input_mixer_controls)), /* PGA selection */ SND_SOC_DAPM_PGA("Left PGA", ADC3XXX_LEFT_APGA_CTRL, 7, 1, NULL, 0), SND_SOC_DAPM_PGA("Right PGA", ADC3XXX_RIGHT_APGA_CTRL, 7, 1, NULL, 0), /* Digital Microphone Input Control for Left/Right ADC */ SND_SOC_DAPM_MIXER("Left DMic Input", SND_SOC_NOPM, 0, 0, &left_input_dmic_controls[0], ARRAY_SIZE(left_input_dmic_controls)), SND_SOC_DAPM_MIXER("Right DMic Input", SND_SOC_NOPM, 0, 0, &right_input_dmic_controls[0], ARRAY_SIZE(right_input_dmic_controls)), /* Left/Right ADC */ SND_SOC_DAPM_ADC("Left ADC", "Left Capture", ADC3XXX_ADC_DIGITAL, 7, 0), SND_SOC_DAPM_ADC("Right ADC", "Right Capture", ADC3XXX_ADC_DIGITAL, 6, 0), /* Inputs */ SND_SOC_DAPM_INPUT("IN_1L"), SND_SOC_DAPM_INPUT("IN_1R"), SND_SOC_DAPM_INPUT("IN_2L"), SND_SOC_DAPM_INPUT("IN_2R"), SND_SOC_DAPM_INPUT("IN_3L"), SND_SOC_DAPM_INPUT("IN_3R"), SND_SOC_DAPM_INPUT("DIFL_1L_1R"), SND_SOC_DAPM_INPUT("DIFL_2L_3L"), SND_SOC_DAPM_INPUT("DIFL_2R_3R"), SND_SOC_DAPM_INPUT("DIFR_1L_1R"), SND_SOC_DAPM_INPUT("DIFR_2L_3L"), SND_SOC_DAPM_INPUT("DIFR_2R_3R"), SND_SOC_DAPM_INPUT("DMic_L"), SND_SOC_DAPM_INPUT("DMic_R"), /* Digital audio interface output */ SND_SOC_DAPM_AIF_OUT("AIF_OUT", "Capture", 0, SND_SOC_NOPM, 0, 0), /* Clocks */ SND_SOC_DAPM_SUPPLY("PLL_CLK", ADC3XXX_PLL_PROG_PR, ADC3XXX_ENABLE_PLL_SHIFT, 0, adc3xxx_pll_delay, SND_SOC_DAPM_POST_PMU), SND_SOC_DAPM_SUPPLY("ADC_CLK", ADC3XXX_ADC_NADC, ADC3XXX_ENABLE_NADC_SHIFT, 0, NULL, 0), SND_SOC_DAPM_SUPPLY("ADC_MOD_CLK", ADC3XXX_ADC_MADC, ADC3XXX_ENABLE_MADC_SHIFT, 0, NULL, 0), /* This refers to the generated BCLK in master mode. */ SND_SOC_DAPM_SUPPLY("BCLK", ADC3XXX_BCLK_N_DIV, ADC3XXX_ENABLE_BCLK_SHIFT, 0, NULL, 0), }; static const struct snd_soc_dapm_route adc3xxx_intercon[] = { /* Left input selection from switches */ { "Left Input", "IN_1L Capture Switch", "IN_1L" }, { "Left Input", "IN_2L Capture Switch", "IN_2L" }, { "Left Input", "IN_3L Capture Switch", "IN_3L" }, { "Left Input", "DIF_2L_3L Capture Switch", "DIFL_2L_3L" }, { "Left Input", "DIF_1L_1R Capture Switch", "DIFL_1L_1R" }, { "Left Input", "DIF_2R_3R Capture Switch", "DIFL_2R_3R" }, { "Left Input", "IN_1R Capture Switch", "IN_1R" }, /* Left input selection to left PGA */ { "Left PGA", NULL, "Left Input" }, /* Left PGA to left ADC */ { "Left ADC", NULL, "Left PGA" }, /* Right input selection from switches */ { "Right Input", "IN_1R Capture Switch", "IN_1R" }, { "Right Input", "IN_2R Capture Switch", "IN_2R" }, { "Right Input", "IN_3R Capture Switch", "IN_3R" }, { "Right Input", "DIF_2R_3R Capture Switch", "DIFR_2R_3R" }, { "Right Input", "DIF_1L_1R Capture Switch", "DIFR_1L_1R" }, { "Right Input", "DIF_2L_3L Capture Switch", "DIFR_2L_3L" }, { "Right Input", "IN_1L Capture Switch", "IN_1L" }, /* Right input selection to right PGA */ { "Right PGA", NULL, "Right Input" }, /* Right PGA to right ADC */ { "Right ADC", NULL, "Right PGA" }, /* Left DMic Input selection from switch */ { "Left DMic Input", "Left ADC Capture Switch", "DMic_L" }, /* Left DMic to left ADC */ { "Left ADC", NULL, "Left DMic Input" }, /* Right DMic Input selection from switch */ { "Right DMic Input", "Right ADC Capture Switch", "DMic_R" }, /* Right DMic to right ADC */ { "Right ADC", NULL, "Right DMic Input" }, /* ADC to AIF output */ { "AIF_OUT", NULL, "Left ADC" }, { "AIF_OUT", NULL, "Right ADC" }, /* Clocking */ { "ADC_MOD_CLK", NULL, "ADC_CLK" }, { "Left ADC", NULL, "ADC_MOD_CLK" }, { "Right ADC", NULL, "ADC_MOD_CLK" }, { "BCLK", NULL, "ADC_CLK" }, }; static const struct snd_soc_dapm_route adc3xxx_pll_intercon[] = { { "ADC_CLK", NULL, "PLL_CLK" }, }; static const struct snd_soc_dapm_route adc3xxx_bclk_out_intercon[] = { { "AIF_OUT", NULL, "BCLK" } }; static int adc3xxx_gpio_request(struct gpio_chip *chip, unsigned int offset) { struct adc3xxx *adc3xxx = gpiochip_get_data(chip); if (offset >= ADC3XXX_GPIOS_MAX) return -EINVAL; /* GPIO1 is offset 0, GPIO2 is offset 1 */ /* We check here that the GPIO pins are either not configured in the * DT, or that they purposely are set as outputs. * (Input mode not yet implemented). */ if (adc3xxx->gpio_cfg[offset] != 0 && adc3xxx->gpio_cfg[offset] != ADC3XXX_GPIO_GPO + 1) return -EINVAL; return 0; } static int adc3xxx_gpio_direction_out(struct gpio_chip *chip, unsigned int offset, int value) { struct adc3xxx *adc3xxx = gpiochip_get_data(chip); /* Set GPIO output function. */ return regmap_update_bits(adc3xxx->regmap, adc3xxx_gpio_ctrl_reg[offset], ADC3XXX_GPIO_CTRL_CFG_MASK | ADC3XXX_GPIO_CTRL_OUTPUT_CTRL_MASK, ADC3XXX_GPIO_GPO << ADC3XXX_GPIO_CTRL_CFG_SHIFT | !!value << ADC3XXX_GPIO_CTRL_OUTPUT_CTRL_SHIFT); } /* With only GPIO outputs configured, we never get the .direction_out call, * so we set the output mode and output value in the same call. Hence * .set in practice does the same thing as .direction_out . */ static void adc3xxx_gpio_set(struct gpio_chip *chip, unsigned int offset, int value) { (void) adc3xxx_gpio_direction_out(chip, offset, value); } /* Even though we only support GPIO output for now, some GPIO clients * want to read the current pin state using the .get callback. */ static int adc3xxx_gpio_get(struct gpio_chip *chip, unsigned int offset) { struct adc3xxx *adc3xxx = gpiochip_get_data(chip); unsigned int regval; int ret; /* We only allow output pins, so just read the value set in the output * pin register field. */ ret = regmap_read(adc3xxx->regmap, adc3xxx_gpio_ctrl_reg[offset], ®val); if (ret) return ret; return !!(regval & ADC3XXX_GPIO_CTRL_OUTPUT_CTRL_MASK); } static const struct gpio_chip adc3xxx_gpio_chip = { .label = "adc3xxx", .owner = THIS_MODULE, .request = adc3xxx_gpio_request, .direction_output = adc3xxx_gpio_direction_out, .set = adc3xxx_gpio_set, .get = adc3xxx_gpio_get, .can_sleep = 1, }; static void adc3xxx_free_gpio(struct adc3xxx *adc3xxx) { #ifdef CONFIG_GPIOLIB gpiochip_remove(&adc3xxx->gpio_chip); #endif } static void adc3xxx_init_gpio(struct adc3xxx *adc3xxx) { int gpio, micbias; int ret; adc3xxx->gpio_chip = adc3xxx_gpio_chip; adc3xxx->gpio_chip.ngpio = ADC3XXX_GPIOS_MAX; adc3xxx->gpio_chip.parent = adc3xxx->dev; adc3xxx->gpio_chip.base = -1; ret = gpiochip_add_data(&adc3xxx->gpio_chip, adc3xxx); if (ret) dev_err(adc3xxx->dev, "Failed to add gpios: %d\n", ret); /* Set up potential GPIO configuration from the devicetree. * This allows us to set up things which are not software * controllable GPIOs, such as PDM microphone I/O, */ for (gpio = 0; gpio < ADC3XXX_GPIOS_MAX; gpio++) { unsigned int cfg = adc3xxx->gpio_cfg[gpio]; if (cfg) { cfg--; /* actual value to use is stored +1 */ regmap_update_bits(adc3xxx->regmap, adc3xxx_gpio_ctrl_reg[gpio], ADC3XXX_GPIO_CTRL_CFG_MASK, cfg << ADC3XXX_GPIO_CTRL_CFG_SHIFT); } } /* Set up micbias voltage */ for (micbias = 0; micbias < ADC3XXX_MICBIAS_PINS; micbias++) { unsigned int vg = adc3xxx->micbias_vg[micbias]; regmap_update_bits(adc3xxx->regmap, ADC3XXX_MICBIAS_CTRL, ADC3XXX_MICBIAS_MASK << adc3xxx_micbias_shift[micbias], vg << adc3xxx_micbias_shift[micbias]); } } static int adc3xxx_parse_dt_gpio(struct adc3xxx *adc3xxx, const char *propname, unsigned int *cfg) { struct device *dev = adc3xxx->dev; struct device_node *np = dev->of_node; unsigned int val; if (!of_property_read_u32(np, propname, &val)) { if (val & ~15 || val == 7 || val >= 11) { dev_err(dev, "Invalid property value for '%s'\n", propname); return -EINVAL; } if (val == ADC3XXX_GPIO_GPI) dev_warn(dev, "GPIO Input read not yet implemented\n"); *cfg = val + 1; /* 0 => not set up, all others shifted +1 */ } return 0; } static int adc3xxx_parse_dt_micbias(struct adc3xxx *adc3xxx, const char *propname, unsigned int *vg) { struct device *dev = adc3xxx->dev; struct device_node *np = dev->of_node; unsigned int val; if (!of_property_read_u32(np, propname, &val)) { if (val > ADC3XXX_MICBIAS_AVDD) { dev_err(dev, "Invalid property value for '%s'\n", propname); return -EINVAL; } *vg = val; } return 0; } static int adc3xxx_parse_pll_mode(uint32_t val, unsigned int *pll_mode) { if (val != ADC3XXX_PLL_ENABLE && val != ADC3XXX_PLL_BYPASS && val != ADC3XXX_PLL_AUTO) return -EINVAL; *pll_mode = val; return 0; } static void adc3xxx_setup_pll(struct snd_soc_component *component, int div_entry) { int i = div_entry; /* P & R values */ snd_soc_component_write(component, ADC3XXX_PLL_PROG_PR, (adc3xxx_divs[i].pll_p << ADC3XXX_PLLP_SHIFT) | (adc3xxx_divs[i].pll_r << ADC3XXX_PLLR_SHIFT)); /* J value */ snd_soc_component_write(component, ADC3XXX_PLL_PROG_J, adc3xxx_divs[i].pll_j & ADC3XXX_PLLJ_MASK); /* D value */ snd_soc_component_write(component, ADC3XXX_PLL_PROG_D_LSB, adc3xxx_divs[i].pll_d & ADC3XXX_PLLD_LSB_MASK); snd_soc_component_write(component, ADC3XXX_PLL_PROG_D_MSB, (adc3xxx_divs[i].pll_d >> 8) & ADC3XXX_PLLD_MSB_MASK); } static int adc3xxx_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { struct snd_soc_component *component = dai->component; struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(dai->component); struct adc3xxx *adc3xxx = snd_soc_component_get_drvdata(component); int i, width = 16; u8 iface_len, bdiv; i = adc3xxx_get_divs(component->dev, adc3xxx->sysclk, params_rate(params), adc3xxx->pll_mode); if (i < 0) return i; /* select data word length */ switch (params_width(params)) { case 16: iface_len = ADC3XXX_IFACE_16BITS; width = 16; break; case 20: iface_len = ADC3XXX_IFACE_20BITS; width = 20; break; case 24: iface_len = ADC3XXX_IFACE_24BITS; width = 24; break; case 32: iface_len = ADC3XXX_IFACE_32BITS; width = 32; break; default: dev_err(component->dev, "Unsupported serial data format\n"); return -EINVAL; } snd_soc_component_update_bits(component, ADC3XXX_INTERFACE_CTRL_1, ADC3XXX_WLENGTH_MASK, iface_len); if (adc3xxx_divs[i].pll_p) { /* If PLL used for this mode */ adc3xxx_setup_pll(component, i); snd_soc_component_write(component, ADC3XXX_CLKGEN_MUX, ADC3XXX_USE_PLL); if (!adc3xxx->use_pll) { snd_soc_dapm_add_routes(dapm, adc3xxx_pll_intercon, ARRAY_SIZE(adc3xxx_pll_intercon)); adc3xxx->use_pll = 1; } } else { snd_soc_component_write(component, ADC3XXX_CLKGEN_MUX, ADC3XXX_NO_PLL); if (adc3xxx->use_pll) { snd_soc_dapm_del_routes(dapm, adc3xxx_pll_intercon, ARRAY_SIZE(adc3xxx_pll_intercon)); adc3xxx->use_pll = 0; } } /* NADC */ snd_soc_component_update_bits(component, ADC3XXX_ADC_NADC, ADC3XXX_NADC_MASK, adc3xxx_divs[i].nadc); /* MADC */ snd_soc_component_update_bits(component, ADC3XXX_ADC_MADC, ADC3XXX_MADC_MASK, adc3xxx_divs[i].madc); /* AOSR */ snd_soc_component_update_bits(component, ADC3XXX_ADC_AOSR, ADC3XXX_AOSR_MASK, adc3xxx_divs[i].aosr); /* BDIV N Value */ /* BCLK is (by default) set up to be derived from ADC_CLK */ bdiv = (adc3xxx_divs[i].aosr * adc3xxx_divs[i].madc) / (2 * width); snd_soc_component_update_bits(component, ADC3XXX_BCLK_N_DIV, ADC3XXX_BDIV_MASK, bdiv); return 0; } static const char *adc3xxx_pll_mode_text(int pll_mode) { switch (pll_mode) { case ADC3XXX_PLL_AUTO: return "PLL auto"; case ADC3XXX_PLL_ENABLE: return "PLL enable"; case ADC3XXX_PLL_BYPASS: return "PLL bypass"; default: break; } return "PLL unknown"; } static int adc3xxx_set_dai_sysclk(struct snd_soc_dai *codec_dai, int clk_id, unsigned int freq, int dir) { struct snd_soc_component *component = codec_dai->component; struct adc3xxx *adc3xxx = snd_soc_component_get_drvdata(component); int ret; ret = adc3xxx_parse_pll_mode(clk_id, &adc3xxx->pll_mode); if (ret < 0) return ret; adc3xxx->sysclk = freq; dev_dbg(component->dev, "Set sysclk to %u Hz, %s\n", freq, adc3xxx_pll_mode_text(adc3xxx->pll_mode)); return 0; } static int adc3xxx_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) { struct snd_soc_component *component = codec_dai->component; struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); struct adc3xxx *adc3xxx = snd_soc_component_get_drvdata(component); u8 clkdir = 0, format = 0; int master = 0; int ret; switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) { case SND_SOC_DAIFMT_CBP_CFP: master = 1; clkdir = ADC3XXX_BCLK_MASTER | ADC3XXX_WCLK_MASTER; break; case SND_SOC_DAIFMT_CBC_CFC: master = 0; break; default: dev_err(component->dev, "Invalid DAI clock setup\n"); return -EINVAL; } /* * match both interface format and signal polarities since they * are fixed */ switch (fmt & (SND_SOC_DAIFMT_FORMAT_MASK | SND_SOC_DAIFMT_INV_MASK)) { case SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF: format = ADC3XXX_FORMAT_I2S; break; case SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF: format = ADC3XXX_FORMAT_DSP; break; case SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_IB_NF: format = ADC3XXX_FORMAT_DSP; break; case SND_SOC_DAIFMT_RIGHT_J | SND_SOC_DAIFMT_NB_NF: format = ADC3XXX_FORMAT_RJF; break; case SND_SOC_DAIFMT_LEFT_J | SND_SOC_DAIFMT_NB_NF: format = ADC3XXX_FORMAT_LJF; break; default: dev_err(component->dev, "Invalid DAI format\n"); return -EINVAL; } /* Add/del route enabling BCLK output as applicable */ if (master && !adc3xxx->master) snd_soc_dapm_add_routes(dapm, adc3xxx_bclk_out_intercon, ARRAY_SIZE(adc3xxx_bclk_out_intercon)); else if (!master && adc3xxx->master) snd_soc_dapm_del_routes(dapm, adc3xxx_bclk_out_intercon, ARRAY_SIZE(adc3xxx_bclk_out_intercon)); adc3xxx->master = master; /* set clock direction and format */ ret = snd_soc_component_update_bits(component, ADC3XXX_INTERFACE_CTRL_1, ADC3XXX_CLKDIR_MASK | ADC3XXX_FORMAT_MASK, clkdir | format); if (ret < 0) return ret; return 0; } static const struct snd_soc_dai_ops adc3xxx_dai_ops = { .hw_params = adc3xxx_hw_params, .set_sysclk = adc3xxx_set_dai_sysclk, .set_fmt = adc3xxx_set_dai_fmt, }; static struct snd_soc_dai_driver adc3xxx_dai = { .name = "tlv320adc3xxx-hifi", .capture = { .stream_name = "Capture", .channels_min = 1, .channels_max = 2, .rates = ADC3XXX_RATES, .formats = ADC3XXX_FORMATS, }, .ops = &adc3xxx_dai_ops, }; static const struct snd_soc_component_driver soc_component_dev_adc3xxx = { .controls = adc3xxx_snd_controls, .num_controls = ARRAY_SIZE(adc3xxx_snd_controls), .dapm_widgets = adc3xxx_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(adc3xxx_dapm_widgets), .dapm_routes = adc3xxx_intercon, .num_dapm_routes = ARRAY_SIZE(adc3xxx_intercon), .endianness = 1, }; static const struct i2c_device_id adc3xxx_i2c_id[] = { { "tlv320adc3001", ADC3001 }, { "tlv320adc3101", ADC3101 }, {} }; MODULE_DEVICE_TABLE(i2c, adc3xxx_i2c_id); static int adc3xxx_i2c_probe(struct i2c_client *i2c) { struct device *dev = &i2c->dev; struct adc3xxx *adc3xxx = NULL; const struct i2c_device_id *id; int ret; adc3xxx = devm_kzalloc(dev, sizeof(struct adc3xxx), GFP_KERNEL); if (!adc3xxx) return -ENOMEM; adc3xxx->dev = dev; adc3xxx->rst_pin = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW); if (IS_ERR(adc3xxx->rst_pin)) { return dev_err_probe(dev, PTR_ERR(adc3xxx->rst_pin), "Failed to request rst_pin\n"); } adc3xxx->mclk = devm_clk_get(dev, NULL); if (IS_ERR(adc3xxx->mclk)) { /* * The chip itself supports running off the BCLK either * directly or via the PLL, but the driver does not (yet), so * having a specified mclk is required. Otherwise, we could * use the lack of a clocks property to indicate when BCLK is * intended as the clock source. */ return dev_err_probe(dev, PTR_ERR(adc3xxx->mclk), "Failed to acquire MCLK\n"); } else if (adc3xxx->mclk) { ret = clk_prepare_enable(adc3xxx->mclk); if (ret < 0) return ret; dev_dbg(dev, "Enabled MCLK, freq %lu Hz\n", clk_get_rate(adc3xxx->mclk)); } ret = adc3xxx_parse_dt_gpio(adc3xxx, "ti,dmdin-gpio1", &adc3xxx->gpio_cfg[0]); if (ret < 0) goto err_unprepare_mclk; ret = adc3xxx_parse_dt_gpio(adc3xxx, "ti,dmclk-gpio2", &adc3xxx->gpio_cfg[1]); if (ret < 0) goto err_unprepare_mclk; ret = adc3xxx_parse_dt_micbias(adc3xxx, "ti,micbias1-vg", &adc3xxx->micbias_vg[0]); if (ret < 0) goto err_unprepare_mclk; ret = adc3xxx_parse_dt_micbias(adc3xxx, "ti,micbias2-vg", &adc3xxx->micbias_vg[1]); if (ret < 0) goto err_unprepare_mclk; adc3xxx->regmap = devm_regmap_init_i2c(i2c, &adc3xxx_regmap); if (IS_ERR(adc3xxx->regmap)) { ret = PTR_ERR(adc3xxx->regmap); goto err_unprepare_mclk; } i2c_set_clientdata(i2c, adc3xxx); id = i2c_match_id(adc3xxx_i2c_id, i2c); adc3xxx->type = id->driver_data; /* Reset codec chip */ gpiod_set_value_cansleep(adc3xxx->rst_pin, 1); usleep_range(2000, 100000); /* Requirement: > 10 ns (datasheet p13) */ gpiod_set_value_cansleep(adc3xxx->rst_pin, 0); /* Potentially set up pins used as GPIOs */ adc3xxx_init_gpio(adc3xxx); ret = snd_soc_register_component(dev, &soc_component_dev_adc3xxx, &adc3xxx_dai, 1); if (ret < 0) { dev_err(dev, "Failed to register codec: %d\n", ret); goto err_unprepare_mclk; } return 0; err_unprepare_mclk: clk_disable_unprepare(adc3xxx->mclk); return ret; } static void __exit adc3xxx_i2c_remove(struct i2c_client *client) { struct adc3xxx *adc3xxx = i2c_get_clientdata(client); if (adc3xxx->mclk) clk_disable_unprepare(adc3xxx->mclk); adc3xxx_free_gpio(adc3xxx); snd_soc_unregister_component(&client->dev); } static const struct of_device_id tlv320adc3xxx_of_match[] = { { .compatible = "ti,tlv320adc3001", }, { .compatible = "ti,tlv320adc3101", }, {}, }; MODULE_DEVICE_TABLE(of, tlv320adc3xxx_of_match); static struct i2c_driver adc3xxx_i2c_driver = { .driver = { .name = "tlv320adc3xxx-codec", .of_match_table = tlv320adc3xxx_of_match, }, .probe = adc3xxx_i2c_probe, .remove = __exit_p(adc3xxx_i2c_remove), .id_table = adc3xxx_i2c_id, }; module_i2c_driver(adc3xxx_i2c_driver); MODULE_DESCRIPTION("ASoC TLV320ADC3xxx codec driver"); MODULE_AUTHOR("shahina.s@mistralsolutions.com"); MODULE_LICENSE("GPL v2");
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