diff options
Diffstat (limited to 'target/linux/s3c24xx/patches-2.6.24/1029-hxd8-tsl256x.patch.patch')
-rw-r--r-- | target/linux/s3c24xx/patches-2.6.24/1029-hxd8-tsl256x.patch.patch | 537 |
1 files changed, 0 insertions, 537 deletions
diff --git a/target/linux/s3c24xx/patches-2.6.24/1029-hxd8-tsl256x.patch.patch b/target/linux/s3c24xx/patches-2.6.24/1029-hxd8-tsl256x.patch.patch deleted file mode 100644 index e230a9b..0000000 --- a/target/linux/s3c24xx/patches-2.6.24/1029-hxd8-tsl256x.patch.patch +++ /dev/null @@ -1,537 +0,0 @@ -From d238d3347d19a6df97670624bd0712e61b83b666 Mon Sep 17 00:00:00 2001 -From: mokopatches <mokopatches@openmoko.org> -Date: Fri, 4 Apr 2008 11:34:17 +0100 -Subject: [PATCH] hxd8-tsl256x.patch - ---- - drivers/i2c/chips/Kconfig | 10 ++ - drivers/i2c/chips/Makefile | 1 + - drivers/i2c/chips/tsl256x.c | 310 +++++++++++++++++++++++++++++++++++++++++++ - drivers/i2c/chips/tsl256x.h | 154 +++++++++++++++++++++ - include/linux/i2c-id.h | 1 + - 5 files changed, 476 insertions(+), 0 deletions(-) - create mode 100644 drivers/i2c/chips/tsl256x.c - create mode 100644 drivers/i2c/chips/tsl256x.h - -diff --git a/drivers/i2c/chips/Kconfig b/drivers/i2c/chips/Kconfig -index c0011fc..bf0da3a 100644 ---- a/drivers/i2c/chips/Kconfig -+++ b/drivers/i2c/chips/Kconfig -@@ -174,4 +174,14 @@ config MENELAUS - and other features that are often used in portable devices like - cell phones and PDAs. - -+config SENSORS_TSL256X -+ tristate "Texas TSL256X Ambient Light Sensor" -+ depends on I2C -+ help -+ If you say yes here you get support for the Texas TSL256X -+ ambient light sensor chip. -+ -+ This driver can also be built as a module. If so, the module -+ will be called tsl256x. -+ - endmenu -diff --git a/drivers/i2c/chips/Makefile b/drivers/i2c/chips/Makefile -index 864e6cf..a4772c7 100644 ---- a/drivers/i2c/chips/Makefile -+++ b/drivers/i2c/chips/Makefile -@@ -16,6 +16,7 @@ obj-$(CONFIG_ISP1301_OMAP) += isp1301_omap.o - obj-$(CONFIG_TPS65010) += tps65010.o - obj-$(CONFIG_MENELAUS) += menelaus.o - obj-$(CONFIG_SENSORS_TSL2550) += tsl2550.o -+obj-$(CONFIG_SENSORS_TSL256X) += tsl256x.o - - ifeq ($(CONFIG_I2C_DEBUG_CHIP),y) - EXTRA_CFLAGS += -DDEBUG -diff --git a/drivers/i2c/chips/tsl256x.c b/drivers/i2c/chips/tsl256x.c -new file mode 100644 -index 0000000..455ec5e ---- /dev/null -+++ b/drivers/i2c/chips/tsl256x.c -@@ -0,0 +1,310 @@ -+/* -+ * tsl256x.c -- TSL256x Light Sensor driver -+ * -+ * Copyright 2007 by Fiwin. -+ * Author: Alec Tsai <alec_tsai@fiwin.com.tw> -+ * -+ * 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 I2C client driver refers to pcf50606.c. -+ */ -+ -+#include <linux/module.h> -+#include <linux/init.h> -+#include <linux/i2c.h> -+#include <linux/types.h> -+#include <linux/input.h> -+ -+#include "tsl256x.h" -+ -+static unsigned short normal_i2c[] = { 0x39, I2C_CLIENT_END }; -+/* Magic definition of all other variables and things */ -+I2C_CLIENT_INSMOD; -+ -+struct tsl256x_data { -+ struct i2c_client client; -+ struct mutex lock; -+ struct input_dev *input_dev; -+}; -+ -+static struct i2c_driver tsl256x_driver; -+ -+/****************************************************************************** -+ * Low-Level routines -+ *****************************************************************************/ -+static inline int __reg_write(struct tsl256x_data *tsl, u_int8_t reg, -+ u_int8_t val) -+{ -+ return i2c_smbus_write_byte_data(&tsl->client, reg, val); -+} -+ -+static int reg_write(struct tsl256x_data *tsl, u_int8_t reg, u_int8_t val) -+{ -+ int ret; -+ -+ mutex_lock(&tsl->lock); -+ ret = __reg_write(tsl, reg, val); -+ mutex_unlock(&tsl->lock); -+ -+ return ret; -+} -+ -+static inline int32_t __reg_read(struct tsl256x_data *tsl, u_int8_t reg) -+{ -+ int32_t ret; -+ -+ ret = i2c_smbus_read_byte_data(&tsl->client, reg); -+ -+ return ret; -+} -+ -+static u_int8_t reg_read(struct tsl256x_data *tsl, u_int8_t reg) -+{ -+ int32_t ret; -+ -+ mutex_lock(&tsl->lock); -+ ret = __reg_read(tsl, reg); -+ mutex_unlock(&tsl->lock); -+ -+ return ret & 0xff; -+} -+ -+u_int32_t calculate_lux(u_int32_t iGain, u_int32_t iType, u_int32_t ch0, -+ u_int32_t ch1) -+{ -+ u_int32_t channel0 = ch0 * 636 / 10; -+ u_int32_t channel1 = ch1 * 636 / 10; -+ u_int32_t lux_value = 0; -+ u_int32_t ratio = (channel1 * (2^RATIO_SCALE)) / channel0; -+ u_int32_t b = 0, m = 0; -+ -+ if (0 == ch0) -+ return 0; -+ else { -+ if (ratio > (13 * (2^RATIO_SCALE) / 10)) -+ return 0; -+ } -+ -+ switch (iType) { -+ case 0: // T package -+ if ((ratio >= 0) && (ratio <= K1T)) { -+ b = B1T; -+ m = M1T; -+ } else if (ratio <= K2T) { -+ b = B2T; -+ m = M2T; -+ } else if (ratio <= K3T) { -+ b = B3T; -+ m = M3T; -+ } else if (ratio <= K4T) { -+ b = B4T; -+ m = M4T; -+ } else if (ratio <= K5T) { -+ b = B5T; -+ m = M5T; -+ } else if (ratio <= K6T) { -+ b = B6T; -+ m = M6T; -+ } else if (ratio <= K7T) { -+ b = B7T; -+ m = M7T; -+ } else if (ratio > K8T) { -+ b = B8T; -+ m = M8T; -+ } -+ break; -+ case 1:// CS package -+ if ((ratio >= 0) && (ratio <= K1C)) { -+ b = B1C; -+ m = M1C; -+ } else if (ratio <= K2C) { -+ b = B2C; -+ m = M2C; -+ } else if (ratio <= K3C) { -+ b = B3C; -+ m = M3C; -+ } else if (ratio <= K4C) { -+ b = B4C; -+ m = M4C; -+ } else if (ratio <= K5C) { -+ b = B5C; -+ m = M5C; -+ } else if (ratio <= K6C) { -+ b = B6C; -+ m = M6C; -+ } else if (ratio <= K7C) { -+ b = B7C; -+ m = M7C; -+ } else if (ratio > K8C) { -+ b = B8C; -+ m = M8C; -+ } -+ break; -+ default: -+ return 0; -+ break; -+ } -+ -+ lux_value = ((channel0 * b) - (channel1 * m)) / 16384; -+ return(lux_value); -+} -+ -+static ssize_t tsl256x_show_light_lux(struct device *dev, -+ struct device_attribute *attr, char *buf) -+{ -+ struct i2c_client *client = to_i2c_client(dev); -+ struct tsl256x_data *tsl = i2c_get_clientdata(client); -+ u_int8_t low_byte_of_ch0 = 0, high_byte_of_ch0 = 0; -+ u_int8_t low_byte_of_ch1 = 0, high_byte_of_ch1 = 0; -+ u_int32_t adc_value_ch0, adc_value_ch1, adc_value; -+ -+ low_byte_of_ch0 = reg_read(tsl, TSL256X_REG_DATA0LOW); -+ high_byte_of_ch0 = reg_read(tsl, TSL256X_REG_DATA0HIGH); -+ low_byte_of_ch1 = reg_read(tsl, TSL256X_REG_DATA1LOW); -+ high_byte_of_ch1 = reg_read(tsl, TSL256X_REG_DATA1HIGH); -+ -+ adc_value_ch0 = (high_byte_of_ch0 * 256 + low_byte_of_ch0) * 16; -+ adc_value_ch1 = (high_byte_of_ch1 * 256 + low_byte_of_ch1) * 16; -+ -+ adc_value = calculate_lux(0, 0, adc_value_ch0, adc_value_ch1); -+ return sprintf(buf, "%d\n", adc_value); -+} -+ -+static DEVICE_ATTR(light_lux, S_IRUGO, tsl256x_show_light_lux, NULL); -+ -+static int tsl256x_detect(struct i2c_adapter *adapter, int address, int kind) -+{ -+ struct i2c_client *new_client = NULL; -+ struct tsl256x_data *tsl256x = NULL; -+ u_int8_t id = 0; -+ int res = 0; -+ -+ if (!(tsl256x = kzalloc(sizeof(*tsl256x), GFP_KERNEL))) -+ return -ENOMEM; -+ -+ mutex_init(&tsl256x->lock); -+ new_client = &tsl256x->client; -+ i2c_set_clientdata(new_client, tsl256x); -+ new_client->addr = address; -+ new_client->adapter = adapter; -+ new_client->driver = &tsl256x_driver; -+ new_client->flags = 0; -+ strlcpy(new_client->name, "tsl256x", I2C_NAME_SIZE); -+ -+ /* now we try to detect the chip */ -+ /* register with i2c core */ -+ res = i2c_attach_client(new_client); -+ if (res) { -+ printk(KERN_DEBUG "[%s]Error: during i2c_attach_client()\n", -+ new_client->name); -+ goto exit_free; -+ } else { -+ printk(KERN_INFO "TSL256X is attached to I2C bus.\n"); -+ } -+ -+ /* Configure TSL256X. */ -+ { -+ /* Power up TSL256X. */ -+ reg_write(tsl256x, TSL256X_REG_CONTROL, 0x03); -+ -+ /* Check TSL256X ID. */ -+ id = reg_read(tsl256x, TSL256X_REG_ID); -+ if (TSL2561_ID == (id & 0xF0)) { -+ /* Configuring the Timing Register. -+ High Gain (16x), integration time of 101ms. */ -+ reg_write(tsl256x, TSL256X_REG_TIMING, 0x11); -+ } else { -+ goto exit_free; -+ } -+ } -+ -+ res = device_create_file(&new_client->dev, &dev_attr_light_lux); -+ if (res) -+ goto exit_detach; -+ -+ return 0; -+ -+exit_free: -+ kfree(tsl256x); -+ return res; -+exit_detach: -+ i2c_detach_client(new_client); -+ return res; -+} -+ -+static int tsl256x_attach_adapter(struct i2c_adapter *adapter) -+{ -+ return i2c_probe(adapter, &addr_data, &tsl256x_detect); -+} -+ -+static int tsl256x_detach_client(struct i2c_client *client) -+{ -+ struct tsl256x_data *tsl256x = i2c_get_clientdata(client); -+ -+ printk(KERN_INFO "Detach TSL256X from I2C bus.\n"); -+ -+ /* Power down TSL256X. */ -+ reg_write(tsl256x, TSL256X_REG_CONTROL, 0x00); -+ -+ device_remove_file(&client->dev, &dev_attr_light_lux); -+ kfree(tsl256x); -+ -+ return 0; -+} -+ -+#ifdef CONFIG_PM -+static int tsl256x_suspend(struct device *dev, pm_message_t state) -+{ -+ struct i2c_client *client = to_i2c_client(dev); -+ struct tsl256x_data *tsl256x = i2c_get_clientdata(client); -+ -+ /* Power down TSL256X. */ -+ reg_write(tsl256x, TSL256X_REG_CONTROL, 0x00); -+ -+ return 0; -+} -+ -+static int tsl256x_resume(struct device *dev) -+{ -+ struct i2c_client *client = to_i2c_client(dev); -+ struct tsl256x_data *tsl256x = i2c_get_clientdata(client); -+ -+ /* Power up TSL256X. */ -+ reg_write(tsl256x, TSL256X_REG_CONTROL, 0x03); -+ -+ return 0; -+} -+#endif -+ -+static struct i2c_driver tsl256x_driver = { -+ .driver = { -+ .name = "tsl256x", -+ .owner = THIS_MODULE, -+#ifdef CONFIG_PM -+ .suspend = tsl256x_suspend, -+ .resume = tsl256x_resume, -+#endif -+ }, -+ .id = I2C_DRIVERID_TSL256X, -+ .attach_adapter = tsl256x_attach_adapter, -+ .detach_client = tsl256x_detach_client, -+}; -+ -+static int __init tsl256x_init(void) -+{ -+ return i2c_add_driver(&tsl256x_driver); -+} -+ -+static void __exit tsl256x_exit(void) -+{ -+ i2c_del_driver(&tsl256x_driver); -+} -+ -+MODULE_AUTHOR("Alec Tsai <alec_tsai@fiwin.com.tw>"); -+MODULE_LICENSE("GPL"); -+ -+module_init(tsl256x_init); -+module_exit(tsl256x_exit); -+ -diff --git a/drivers/i2c/chips/tsl256x.h b/drivers/i2c/chips/tsl256x.h -new file mode 100644 -index 0000000..88de0c6 ---- /dev/null -+++ b/drivers/i2c/chips/tsl256x.h -@@ -0,0 +1,154 @@ -+/* -+ * tsl256x.h -- TSL256x Light Sensor driver -+ * -+ * Copyright 2007 by Fiwin. -+ * Author: Alec Tsai <alec_tsai@fiwin.com.tw> -+ * -+ * 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. -+ * -+ * The contents of header file is copied from TSL256x Datasheet. -+ */ -+ -+#ifndef _TSL256X_H -+#define _TSL256X_H -+ -+#define TSL2560_ID 0x00 -+#define TSL2561_ID 0x10 -+ -+#define LUX_SCALE 14 /* scale by 2^14 */ -+#define RATIO_SCALE 9 /*scale ratio by 2^9 */ -+ -+/****************************************************************************** -+ * Integration time scaling factors -+ *****************************************************************************/ -+#define CH_SCALE 10 /* scale channel values by 2^10 */ -+#define CHSCALE_TINT0 0x7517 /* 322/11 * 2^CH_SCALE */ -+#define CHSCALE_TINT1 0x0fe7 /* 322/81 * 2^CH_SCALE */ -+ -+/****************************************************************************** -+ * T Package coefficients -+ *****************************************************************************/ -+/* -+ * For Ch1/Ch0=0.00 to 0.50 -+ * Lux/Ch0=0.0304.0.062*((Ch1/Ch0)^1.4) -+ * piecewise approximation -+ * For Ch1/Ch0=0.00 to 0.125: -+ * Lux/Ch0=0.0304.0.0272*(Ch1/Ch0) -+ * -+ * For Ch1/Ch0=0.125 to 0.250: -+ * Lux/Ch0=0.0325.0.0440*(Ch1/Ch0) -+ * -+ * For Ch1/Ch0=0.250 to 0.375: -+ * Lux/Ch0=0.0351.0.0544*(Ch1/Ch0) -+ * -+ * For Ch1/Ch0=0.375 to 0.50: -+ * Lux/Ch0=0.0381.0.0624*(Ch1/Ch0) -+ * -+ * For Ch1/Ch0=0.50 to 0.61: -+ * Lux/Ch0=0.0224.0.031*(Ch1/Ch0) -+ * -+ * For Ch1/Ch0=0.61 to 0.80: -+ * Lux/Ch0=0.0128.0.0153*(Ch1/Ch0) -+ * -+ * For Ch1/Ch0=0.80 to 1.30: -+ * Lux/Ch0=0.00146.0.00112*(Ch1/Ch0) -+ * -+ * For Ch1/Ch0>1.3: -+ * Lux/Ch0=0 -+ */ -+#define K1T 0x0040 /* 0.125 * 2^RATIO_SCALE */ -+#define B1T 0x01f2 /* 0.0304 * 2^LUX_SCALE */ -+#define M1T 0x01be /* 0.0272 * 2^LUX_SCALE */ -+#define K2T 0x0080 /* 0.250 * 2^RATIO_SCALE */ -+#define B2T 0x0214 /* 0.0325 * 2^LUX_SCALE */ -+#define M2T 0x02d1 /* 0.0440 * 2^LUX_SCALE */ -+#define K3T 0x00c0 /* 0.375 * 2^RATIO_SCALE */ -+#define B3T 0x023f /* 0.0351 * 2^LUX_SCALE */ -+#define M3T 0x037b /* 0.0544 * 2^LUX_SCALE */ -+#define K4T 0x0100 /* 0.50 * 2^RATIO_SCALE */ -+#define B4T 0x0270 /* 0.0381 * 2^LUX_SCALE */ -+#define M4T 0x03fe /* 0.0624 * 2^LUX_SCALE */ -+#define K5T 0x0138 /* 0.61 * 2^RATIO_SCALE */ -+#define B5T 0x016f /* 0.0224 * 2^LUX_SCALE */ -+#define M5T 0x01fc /* 0.0310 * 2^LUX_SCALE */ -+#define K6T 0x019a /* 0.80 * 2^RATIO_SCALE */ -+#define B6T 0x00d2 /* 0.0128 * 2^LUX_SCALE */ -+#define M6T 0x00fb /* 0.0153 * 2^LUX_SCALE */ -+#define K7T 0x029a /* 1.3 * 2^RATIO_SCALE */ -+#define B7T 0x0018 /* 0.00146 * 2^LUX_SCALE */ -+#define M7T 0x0012 /* 0.00112 * 2^LUX_SCALE */ -+#define K8T 0x029a /* 1.3 * 2^RATIO_SCALE */ -+#define B8T 0x0000 /* 0.000 * 2^LUX_SCALE */ -+#define M8T 0x0000 /* 0.000 * 2^LUX_SCALE */ -+ -+/****************************************************************************** -+ * CS package coefficients -+ *****************************************************************************/ -+/* -+ * For 0 <= Ch1/Ch0 <= 0.52 -+ * Lux/Ch0 = 0.0315.0.0593*((Ch1/Ch0)^1.4) -+ * piecewise approximation -+ * For 0 <= Ch1/Ch0 <= 0.13 -+ * Lux/Ch0 = 0.0315.0.0262*(Ch1/Ch0) -+ * For 0.13 <= Ch1/Ch0 <= 0.26 -+ * Lux/Ch0 = 0.0337.0.0430*(Ch1/Ch0) -+ * For 0.26 <= Ch1/Ch0 <= 0.39 -+ * Lux/Ch0 = 0.0363.0.0529*(Ch1/Ch0) -+ * For 0.39 <= Ch1/Ch0 <= 0.52 -+ * Lux/Ch0 = 0.0392.0.0605*(Ch1/Ch0) -+ * For 0.52 < Ch1/Ch0 <= 0.65 -+ * Lux/Ch0 = 0.0229.0.0291*(Ch1/Ch0) -+ * For 0.65 < Ch1/Ch0 <= 0.80 -+ * Lux/Ch0 = 0.00157.0.00180*(Ch1/Ch0) -+ * For 0.80 < Ch1/Ch0 <= 1.30 -+ * Lux/Ch0 = 0.00338.0.00260*(Ch1/Ch0) -+ * For Ch1/Ch0 > 1.30 -+ * Lux = 0 -+ */ -+#define K1C 0x0043 /* 0.130 * 2^RATIO_SCALE */ -+#define B1C 0x0204 /* 0.0315 * 2^LUX_SCALE */ -+#define M1C 0x01ad /* 0.0262 * 2^LUX_SCALE */ -+#define K2C 0x0085 /* 0.260 * 2^RATIO_SCALE */ -+#define B2C 0x0228 /* 0.0337 * 2^LUX_SCALE */ -+#define M2C 0x02c1 /* 0.0430 * 2^LUX_SCALE */ -+#define K3C 0x00c8 /* 0.390 * 2^RATIO_SCALE */ -+#define B3C 0x0253 /* 0.0363 * 2^LUX_SCALE */ -+#define M3C 0x0363 /* 0.0529 * 2^LUX_SCALE */ -+#define K4C 0x010a /* 0.520 * 2^RATIO_SCALE */ -+#define B4C 0x0282 /* 0.0392 * 2^LUX_SCALE */ -+#define M4C 0x03df /* 0.0605 * 2^LUX_SCALE */ -+#define K5C 0x014d /* 0.65 * 2^RATIO_SCALE */ -+#define B5C 0x0177 /* 0.0229 * 2^LUX_SCALE */ -+#define M5C 0x01dd /* 0.0291 * 2^LUX_SCALE */ -+#define K6C 0x019a /* 0.80 * 2^RATIO_SCALE */ -+#define B6C 0x0101 /* 0.0157 * 2^LUX_SCALE */ -+#define M6C 0x0127 /* 0.0180 * 2^LUX_SCALE */ -+#define K7C 0x029a /* 1.3 * 2^RATIO_SCALE */ -+#define B7C 0x0037 /* 0.00338 * 2^LUX_SCALE */ -+#define M7C 0x002b /* 0.00260 * 2^LUX_SCALE */ -+#define K8C 0x029a /* 1.3 * 2^RATIO_SCALE */ -+#define B8C 0x0000 /* 0.000 * 2^LUX_SCALE */ -+#define M8C 0x0000 /* 0.000 * 2^LUX_SCALE */ -+ -+/* TSL256x registers definition . */ -+enum tsl256x_regs { -+ TSL256X_REG_CONTROL = 0x80, /* Control of basic functions */ -+ TSL256X_REG_TIMING = 0x81, /* Integration time/gain control */ -+ TSL256X_REG_THRESHLOWLOW = 0x82, /* Low byte of low interrupt threshold */ -+ TSL256X_REG_THRESHLOWHIGH = 0x83, /* High byte of low interrupt threshold */ -+ TSL256X_REG_THRESHHIGHLOW = 0x84, /* Low byte of high interrupt threshold */ -+ TSL256X_REG_THRESHHIGHHIGH = 0x85, /* High byte of high interrupt threshold */ -+ TSL256X_REG_INTERRUPT = 0x86, /* Interrupt control */ -+ TSL256X_REG_CRC = 0x88, /* Factory test - not a user register */ -+ TSL256X_REG_ID = 0x8A, /* Part number/ Rev ID */ -+ TSL256X_REG_DATA0LOW = 0x8C, /* Low byte of ADC channel 0 */ -+ TSL256X_REG_DATA0HIGH = 0x8D, /* High byte of ADC channel 0 */ -+ TSL256X_REG_DATA1LOW = 0x8E, /* Low byte of ADC channel 1 */ -+ TSL256X_REG_DATA1HIGH = 0x8F, /* High byte of ADC channel 1 */ -+ __NUM_TSL256X_REGS -+}; -+ -+#endif /* _TSL256X_H */ -+ -diff --git a/include/linux/i2c-id.h b/include/linux/i2c-id.h -index 9b8ae78..a089554 100644 ---- a/include/linux/i2c-id.h -+++ b/include/linux/i2c-id.h -@@ -168,6 +168,7 @@ - #define I2C_DRIVERID_W83L785TS 1047 - #define I2C_DRIVERID_OV7670 1048 /* Omnivision 7670 camera */ - #define I2C_DRIVERID_PCF50606 1049 -+#define I2C_DRIVERID_TSL256X 1050 - - /* - * ---- Adapter types ---------------------------------------------------- --- -1.5.6.5 - |