diff options
Diffstat (limited to 'drivers/media/sprd_dcam/flash/flash_parallel_connect_bg.c')
| -rw-r--r-- | drivers/media/sprd_dcam/flash/flash_parallel_connect_bg.c | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/drivers/media/sprd_dcam/flash/flash_parallel_connect_bg.c b/drivers/media/sprd_dcam/flash/flash_parallel_connect_bg.c new file mode 100644 index 00000000..340a87c1 --- /dev/null +++ b/drivers/media/sprd_dcam/flash/flash_parallel_connect_bg.c @@ -0,0 +1,103 @@ +/* + * Copyright (C) 2012 Spreadtrum Communications Inc. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * 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. + */ +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/init.h> +#ifndef CONFIG_64BIT +#include <soc/sprd/hardware.h> +#include <soc/sprd/board.h> +#endif +#include <soc/sprd/adi.h> +#include "../common/parse_hwinfo.h" + +#define SPRD_PWM0_CTRL_OFST 0xEC +#define SPRD_PWM0_PATTERN_HIGHT_OFST 0x10 +#define SPRD_PWM0_PATTERT_LOW_OFST 0xC +#define SPRD_PWM0_TONE_OFST 0x8 +#define SPRD_PWM0_RATION_OFST 0x4 +#define SPRD_WHTLED_CTRL_OFST 0xF0 + +extern int sci_efuse_ib_trim_get(unsigned int *p_cal_data); + +unsigned int ib_trim_cal_data = 0; +static int init_flag = 1; + +int sprd_flash_on(void) +{ + if (init_flag && sci_efuse_ib_trim_get(&ib_trim_cal_data)) { + /* + 1. set ib_trim_cal_data to WHTLED_CTRL的IB_TRIM（0x400388F0 [15:9]） + 2. set IB_TRIM_EM_SEL of RGB_CTRL to 0（0x400388EC [11]） + */ + sci_adi_clr(ANA_CTL_GLB_BASE + SPRD_WHTLED_CTRL_OFST, 0x7F << 9); + sci_adi_set(ANA_CTL_GLB_BASE + SPRD_WHTLED_CTRL_OFST, (ib_trim_cal_data & 0x7F) << 9); + sci_adi_clr(ANA_CTL_GLB_BASE + SPRD_PWM0_CTRL_OFST, (0x1 << 11)); + init_flag = 0; + printk("parallel sprd_flash_on trim = %d\n", ib_trim_cal_data); + } + + printk("parallel sprd_flash_on \n"); + /*ENABLE THE PWM0 CONTROLLTER: RTC_PWM0_EN=1 & PWM0_EN=1*/ + sci_adi_clr(ANA_CTL_GLB_BASE + SPRD_PWM0_CTRL_OFST, 0xFFFF); + sci_adi_set(ANA_CTL_GLB_BASE + SPRD_PWM0_CTRL_OFST, 0xC805); + + /*SET PWM0 PATTERN HIGH*/ + sci_adi_set(ANA_PWM_BASE + SPRD_PWM0_PATTERN_HIGHT_OFST, 0xFFFF); + + /*SET PWM0 PATTERN LOW*/ + sci_adi_set(ANA_PWM_BASE + SPRD_PWM0_PATTERT_LOW_OFST, 0xFFFF); + + /*TONE DIV USE DEFAULT VALUE*/ + sci_adi_clr(ANA_PWM_BASE + SPRD_PWM0_TONE_OFST, 0x0100); + + /*SET PWM0 DUTY RATIO = 100%: MOD=FF & DUTY=FF*/ + sci_adi_set(ANA_PWM_BASE + SPRD_PWM0_RATION_OFST, 0x0100); + + /*ENABLE PWM0 OUTPUT: PWM0_EN=1*/ + sci_adi_set(ANA_PWM_BASE, 0x100); + + /*SET LOW LIGHT */ + sci_adi_clr(ANA_CTL_GLB_BASE + SPRD_WHTLED_CTRL_OFST, 0xFFFF); + sci_adi_set(ANA_CTL_GLB_BASE + SPRD_WHTLED_CTRL_OFST, 0x1e); + + /*ENABLE WHTLED*/ + sci_adi_clr(ANA_CTL_GLB_BASE + SPRD_WHTLED_CTRL_OFST, 0x1); + return 0; +} + +int sprd_flash_high_light(void) +{ + printk("parallel sprd_flash_high_light \n"); + /*SET HIGH LIGHT*/ + sci_adi_clr(ANA_CTL_GLB_BASE + SPRD_WHTLED_CTRL_OFST, 0xFFFF); + sci_adi_set(ANA_CTL_GLB_BASE + SPRD_WHTLED_CTRL_OFST, 0x40); + /*ENABLE WHTLED*/ + sci_adi_clr(ANA_CTL_GLB_BASE + SPRD_WHTLED_CTRL_OFST, 0x1); + return 0; +} + +int sprd_flash_close(void) +{ + printk("parallel sprd_flash_close \n"); + + /*DISABLE WHTLED*/ + sci_adi_clr(ANA_CTL_GLB_BASE + SPRD_WHTLED_CTRL_OFST, 0xFFFF); + sci_adi_set(ANA_CTL_GLB_BASE + SPRD_WHTLED_CTRL_OFST, 0x1); + + /*DISABLE THE PWM0 CONTROLLTER: RTC_PWM0_EN=0 & PWM0_EN=0*/ + sci_adi_clr(ANA_CTL_GLB_BASE + SPRD_PWM0_CTRL_OFST, 0xC000); + + /*ENABLE PWM0 OUTPUT: PWM0_EN=0*/ + sci_adi_clr(ANA_PWM_BASE, 0x100); + return 0; +} |