megaraid_sas.rar_Raid!_megaraid_raid

#include <linux/module.h> #include <linux/init.h> #include <linux/errno.h> #include <linux/pm.h> #include <linux/platform_device.h> #include <linux/i2c.h> #include <linux/fb.h> #include <linux/backlight.h> #include <linux/leds.h> #include <linux/slab.h> #include <linux/workqueue.h> #include <linux/i2c/adp8860.h> #define ADP8860_EXT_FEATURES #define ADP8860_USE_LEDS #define ADP8860_MFDVID 0x00 /* Manufacturer and device ID */ #define ADP8860_MDCR 0x01 /* Device mode and status */ #define ADP8860_MDCR2 0x02 /* Device mode and Status Register 2 */ #define ADP8860_INTR_EN 0x03 /* Interrupts enable */ #define ADP8860_CFGR 0x04 /* Configuration register */ #define ADP8860_BLSEN 0x05 /* Sink enable backlight or independent */ #define ADP8860_BLOFF 0x06 /* Backlight off timeout */ #define ADP8860_BLDIM 0x07 /* Backlight dim timeout */ #define ADP8860_BLFR 0x08 /* Backlight fade in and out rates */ #define ADP8860_BLMX1 0x09 /* Backlight (Brightness Level 1-daylight) maximum current */ #define ADP8860_BLDM1 0x0A /* Backlight (Brightness Level 1-daylight) dim current */ #define ADP8860_BLMX2 0x0B /* Backlight (Brightness Level 2-office) maximum current */ #define ADP8860_BLDM2 0x0C /* Backlight (Brightness Level 2-office) dim current */ #define ADP8860_BLMX3 0x0D /* Backlight (Brightness Level 3-dark) maximum current */ #define ADP8860_BLDM3 0x0E /* Backlight (Brightness Level 3-dark) dim current */ #define ADP8860_ISCFR 0x0F /* Independent sink current fade control register */ #define ADP8860_ISCC 0x10 /* Independent sink current control register */ #define ADP8860_ISCT1 0x11 /* Independent Sink Current Timer Register LED[7:5] */ #define ADP8860_ISCT2 0x12 /* Independent Sink Current Timer Register LED[4:1] */ #define ADP8860_ISCF 0x13 /* Independent sink current fade register */ #define ADP8860_ISC7 0x14 /* Independent Sink Current LED7 */ #define ADP8860_ISC6 0x15 /* Independent Sink Current LED6 */ #define ADP8860_ISC5 0x16 /* Independent Sink Current LED5 */ #define ADP8860_ISC4 0x17 /* Independent Sink Current LED4 */ #define ADP8860_ISC3 0x18 /* Independent Sink Current LED3 */ #define ADP8860_ISC2 0x19 /* Independent Sink Current LED2 */ #define ADP8860_ISC1 0x1A /* Independent Sink Current LED1 */ #define ADP8860_CCFG 0x1B /* Comparator configuration */ #define ADP8860_CCFG2 0x1C /* Second comparator configuration */ #define ADP8860_L2_TRP 0x1D /* L2 comparator reference */ #define ADP8860_L2_HYS 0x1E /* L2 hysteresis */ #define ADP8860_L3_TRP 0x1F /* L3 comparator reference */ #define ADP8860_L3_HYS 0x20 /* L3 hysteresis */ #define ADP8860_PH1LEVL 0x21 /* First phototransistor ambient light level-low byte register */ #define ADP8860_PH1LEVH 0x22 /* First phototransistor ambient light level-high byte register */ #define ADP8860_PH2LEVL 0x23 /* Second phototransistor ambient light level-low byte register */ #define ADP8860_PH2LEVH 0x24 /* Second phototransistor ambient light level-high byte register */ #define ADP8860_MANUFID 0x0 /* Analog Devices ADP8860 Manufacturer ID */ #define ADP8861_MANUFID 0x4 /* Analog Devices ADP8861 Manufacturer ID */ #define ADP8863_MANUFID 0x2 /* Analog Devices ADP8863 Manufacturer ID */ #define ADP8860_DEVID(x) ((x) & 0xF) #define ADP8860_MANID(x) ((x) >> 4) /* MDCR Device mode and status */ #define INT_CFG (1 << 6) #define NSTBY (1 << 5) #define DIM_EN (1 << 4) #define GDWN_DIS (1 << 3) #define SIS_EN (1 << 2) #define CMP_AUTOEN (1 << 1) #define BLEN (1 << 0) /* ADP8860_CCFG Main ALS comparator level enable */ #define L3_EN (1 << 1) #define L2_EN (1 << 0) #define CFGR_BLV_SHIFT 3 #define CFGR_BLV_MASK 0x3 #define ADP8860_FLAG_LED_MASK 0xFF #define FADE_VAL(in, out) ((0xF & (in)) | ((0xF & (out)) << 4)) #define BL_CFGR_VAL(law, blv) ((((blv) & CFGR_BLV_MASK) << CFGR_BLV_SHIFT) | ((0x3 & (law)) << 1)) #define ALS_CCFG_VAL(filt) ((0x7 & filt) << 5) enum { adp8860, adp8861, adp8863 }; struct adp8860_led { struct led_classdev cdev; struct work_struct work; struct i2c_client *client; enum led_brightness new_brightness; int id; int flags; }; struct adp8860_bl { struct i2c_client *client; struct backlight_device *bl; struct adp8860_led *led; struct adp8860_backlight_platform_data *pdata; struct mutex lock; unsigned long cached_daylight_max; int id; int revid; int current_brightness; unsigned en_ambl_sens:1; unsigned gdwn_dis:1; }; static int adp8860_read(struct i2c_client *client, int reg, uint8_t *val) { int ret; ret = i2c_smbus_read_byte_data(client, reg); if (ret < 0) { dev_err(&client->dev, "failed reading at 0x%02x\n", reg); return ret; } *val = (uint8_t)ret; return 0; } static int adp8860_write(struct i2c_client *client, u8 reg, u8 val) { return i2c_smbus_write_byte_data(client, reg, val); } static int adp8860_set_bits(struct i2c_client *client, int reg, uint8_t bit_mask) { struct adp8860_bl *data = i2c_get_clientdata(client); uint8_t reg_val; int ret; mutex_lock(&data->lock); ret = adp8860_read(client, reg, &reg_val); if (!ret && ((reg_val & bit_mask) != bit_mask)) { reg_val |= bit_mask; ret = adp8860_write(client, reg, reg_val); } mutex_unlock(&data->lock); return ret; } static int adp8860_clr_bits(struct i2c_client *client, int reg, uint8_t bit_mask) { struct adp8860_bl *data = i2c_get_clientdata(client); uint8_t reg_val; int ret; mutex_lock(&data->lock); ret = adp8860_read(client, reg, &reg_val); if (!ret && (reg_val & bit_mask)) { reg_val &= ~bit_mask; ret = adp8860_write(client, reg, reg_val); } mutex_unlock(&data->lock); return ret; } /* * Independent sink / LED */ #if defined(ADP8860_USE_LEDS) static void adp8860_led_work(struct work_struct *work) { struct adp8860_led *led = container_of(work, struct adp8860_led, work); adp8860_write(led->client, ADP8860_ISC1 - led->id + 1, led->new_brightness >> 1); } static void adp8860_led_set(struct led_classdev *led_cdev, enum led_brightness value) { struct adp8860_led *led; led = container_of(led_cdev, struct adp8860_led, cdev); led->new_brightness = value; schedule_work(&led->work); } static int adp8860_led_setup(struct adp8860_led *led) { struct i2c_client *client = led->client; int ret = 0; ret = adp8860_write(client, ADP8860_ISC1 - led->id + 1, 0); ret |= adp8860_set_bits(client, ADP8860_ISCC, 1 << (led->id - 1)); if (led->id > 4) ret |= adp8860_set_bits(client, ADP8860_ISCT1, (led->flags & 0x3) << ((led->id - 5) * 2)); else ret |= adp8860_set_bits(client, ADP8860_ISCT2, (led->flags & 0x3) << ((led->id - 1) * 2)); return ret; } static int adp8860_led_probe(struct i2c_client *client) { struct adp8860_backlight_platform_data *pdata = dev_get_platdata(&client->dev); struct adp8860_bl *data = i2c_get_clientdata(client); struct adp8860_led *led, *led_dat; struct led_info *cur_led; int ret, i; led = devm_kzalloc(&client->dev, sizeof(*led) * pdata->num_leds, GFP_KERNEL); if (led == NULL) { dev_err(&client->dev, "failed to alloc memory\n"); return -ENOMEM; } ret = adp8860_write(client, ADP8860_ISCFR, pdata->led_fade_law); ret = adp8860_write(client, ADP8860_ISCT1, (pdata->led_on_time & 0x3) << 6); ret |= adp8860_write(client, ADP8860_ISCF, FADE_VAL(pdata->led_fade_in, pdata->led_fade_out)); if (ret) { dev_err(&client->dev, "failed to write\n"); return ret; } for (i = 0; i < pdata->num_leds; ++i) { cur_led = &pdata->leds[i]; led_dat = &led[i]; led_dat->id = cur_led->flags & ADP8860_FLAG_LED_MASK; if (led_dat->id > 7 || led_dat->id < 1) { dev_err(&client->dev, "Invalid LED ID %d\n", led_dat->id); ret = -EINVAL; goto err; } if (pdata->bl_led_assign & (1 << (led_dat->id - 1))) { dev_err(&client->dev, "LED %d used by Backlight\n", led_dat->id); ret = -EBUSY; goto err; } led_dat->cdev.name = cur_led->name; led_dat->cdev.default_trigger = cur_led->default_trigger; led_dat->cdev.brightness_set = adp8860_led_set; led_dat->cdev.brightness = LED_O