From 849369d6c66d3054688672f97d31fceb8e8230fb Mon Sep 17 00:00:00 2001 From: root Date: Fri, 25 Dec 2015 04:40:36 +0000 Subject: initial_commit --- drivers/misc/ntx_misc_light.c | 301 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 301 insertions(+) create mode 100755 drivers/misc/ntx_misc_light.c (limited to 'drivers/misc/ntx_misc_light.c') diff --git a/drivers/misc/ntx_misc_light.c b/drivers/misc/ntx_misc_light.c new file mode 100755 index 00000000..47497f33 --- /dev/null +++ b/drivers/misc/ntx_misc_light.c @@ -0,0 +1,301 @@ +/* + * Copyright 2004-2010 Freescale Semiconductor, Inc. All Rights Reserved. + */ + +/* + * The code contained herein is licensed under the GNU General Public + * License. You may obtain a copy of the GNU General Public License + * Version 2 or later at the following locations: + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + */ + +/*! + * @file mc13892/pmic_light.c + * @brief This is the main file of PMIC(mc13783) Light and Backlight driver. + * + * @ingroup PMIC_LIGHT + */ + +/* + * Includes + */ +#define DEBUG +#include +#include +#include + +typedef enum { + PMIC_SUCCESS = 0, /*!< The requested operation was successfully + completed. */ + PMIC_ERROR = -1, /*!< The requested operation could not be completed + due to an error. */ + PMIC_PARAMETER_ERROR = -2, /*!< The requested operation failed because + one or more of the parameters was + invalid. */ + PMIC_NOT_SUPPORTED = -3, /*!< The requested operation could not be + completed because the PMIC hardware + does not support it. */ + PMIC_SYSTEM_ERROR_EINTR = -EINTR, + + PMIC_MALLOC_ERROR = -5, /*!< Error in malloc function */ + PMIC_UNSUBSCRIBE_ERROR = -6, /*!< Error in un-subscribe event */ + PMIC_EVENT_NOT_SUBSCRIBED = -7, /*!< Event occur and not subscribed */ + PMIC_EVENT_CALL_BACK = -8, /*!< Error - bad call back */ + PMIC_CLIENT_NBOVERFLOW = -9, /*!< The requested operation could not be + completed because there are too many + PMIC client requests */ +} PMIC_STATUS; + +enum lit_channel { + LIT_MAIN = 0, + LIT_AUX, + LIT_KEY, + LIT_RED, + LIT_GREEN, + LIT_BLUE, +}; + +extern void ntx_led_blink (unsigned int channel, int period); +extern void ntx_led_dc (unsigned int channel, unsigned char dc); +extern void ntx_led_current (unsigned int channel, unsigned char value); + +static int pmic_light_suspend(struct platform_device *dev, pm_message_t state) +{ + return 0; +}; + +static int pmic_light_resume(struct platform_device *pdev) +{ + return 0; +}; + + +PMIC_STATUS mc13892_bklit_set_current(enum lit_channel channel, + unsigned char level) +{ + ntx_led_current (channel, level); + return PMIC_SUCCESS; +} + +PMIC_STATUS mc13892_bklit_get_current(enum lit_channel channel, + unsigned char *level) +{ + *level = 0; + + return PMIC_SUCCESS; +} + +PMIC_STATUS mc13892_bklit_set_dutycycle(enum lit_channel channel, + unsigned char dc) +{ + ntx_led_dc (channel, dc); + return PMIC_SUCCESS; +} + +PMIC_STATUS mc13892_bklit_get_dutycycle(enum lit_channel channel, + unsigned char *dc) +{ + return PMIC_SUCCESS; +} + +PMIC_STATUS mc13892_bklit_set_ramp(enum lit_channel channel, int flag) +{ + return PMIC_SUCCESS; +} + +PMIC_STATUS mc13892_bklit_get_ramp(enum lit_channel channel, int *flag) +{ + return PMIC_SUCCESS; +} + +PMIC_STATUS mc13892_bklit_set_blink_p(enum lit_channel channel, int period) +{ + ntx_led_blink (channel, period); + return PMIC_SUCCESS; +} + +PMIC_STATUS mc13892_bklit_get_blink_p(enum lit_channel channel, int *period) +{ + return PMIC_SUCCESS; +} + +EXPORT_SYMBOL(mc13892_bklit_set_current); +EXPORT_SYMBOL(mc13892_bklit_get_current); +EXPORT_SYMBOL(mc13892_bklit_set_dutycycle); +EXPORT_SYMBOL(mc13892_bklit_get_dutycycle); +EXPORT_SYMBOL(mc13892_bklit_set_ramp); +EXPORT_SYMBOL(mc13892_bklit_get_ramp); +EXPORT_SYMBOL(mc13892_bklit_set_blink_p); +EXPORT_SYMBOL(mc13892_bklit_get_blink_p); + +static int pmic_light_remove(struct platform_device *pdev) +{ + return 0; +} + +#ifdef DEBUG +static ssize_t lit_info(struct device *dev, struct device_attribute *attr, + char *buf) +{ + return 0; +} + +enum { + SET_CURR = 0, + SET_DC, + SET_RAMP, + SET_BP, + SET_CH, + LIT_CMD_MAX +}; + +static const char *const lit_cmd[LIT_CMD_MAX] = { + [SET_CURR] = "cur", + [SET_DC] = "dc", + [SET_RAMP] = "ra", + [SET_BP] = "bp", + [SET_CH] = "ch" +}; + +static int cmd(unsigned int index, int value) +{ + static int ch = LIT_MAIN; + int ret = 0; + + switch (index) { + case SET_CH: + ch = value; + break; + case SET_CURR: +// printk("set %d cur %d\n", ch, value); + ret = mc13892_bklit_set_current(ch, value); + break; + case SET_DC: +// printk("set %d dc %d\n", ch, value); + ret = mc13892_bklit_set_dutycycle(ch, value); + break; + case SET_RAMP: +// printk("set %d ramp %d\n", ch, value); + ret = mc13892_bklit_set_ramp(ch, value); + break; + case SET_BP: +// printk("set %d bp %d\n", ch, value); + ret = mc13892_bklit_set_blink_p(ch, value); + break; + default: + pr_debug("error command\n"); + break; + } + + if (ret == PMIC_SUCCESS) + pr_debug("command exec successfully!\n"); + + return 0; +} + +static ssize_t lit_ctl(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + int state = 0; + const char *const *s; + char *p, *q; + int error; + int len, value = 0; + + pr_debug("lit_ctl\n"); + + q = NULL; + q = memchr(buf, ' ', count); + + if (q != NULL) { + len = q - buf; + q += 1; + value = simple_strtoul(q, NULL, 10); + } else { + p = memchr(buf, '\n', count); + len = p ? p - buf : count; + } + + for (s = &lit_cmd[state]; state < LIT_CMD_MAX; s++, state++) { + if (*s && !strncmp(buf, *s, len)) + break; + } + if (state < LIT_CMD_MAX && *s) + error = cmd(state, value); + else + error = -EINVAL; + + return count; +} + +#else +static ssize_t lit_info(struct device *dev, struct device_attribute *attr, + char *buf) +{ + return 0; +} + +static ssize_t lit_ctl(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + return count; +} + +#endif + +static DEVICE_ATTR(lit, 0644, lit_info, lit_ctl); + +static int pmic_light_probe(struct platform_device *pdev) +{ + int ret = 0; + + pr_debug("PMIC ADC start probe\n"); + ret = device_create_file(&(pdev->dev), &dev_attr_lit); + if (ret) { + pr_debug("Can't create device file!\n"); + return -ENODEV; + } + +// pmic_light_init_reg(); + + pr_debug("PMIC Light successfully loaded\n"); + return 0; +} + +static struct platform_driver pmic_light_driver_ldm = { + .driver = { + .name = "pmic_light", + }, + .suspend = pmic_light_suspend, + .resume = pmic_light_resume, + .probe = pmic_light_probe, + .remove = pmic_light_remove, +}; + +/* + * Initialization and Exit + */ + +static int __init pmic_light_init(void) +{ + pr_debug("PMIC Light driver loading...\n"); + return platform_driver_register(&pmic_light_driver_ldm); +} +static void __exit pmic_light_exit(void) +{ + platform_driver_unregister(&pmic_light_driver_ldm); + pr_debug("PMIC Light driver successfully unloaded\n"); +} + +/* + * Module entry points + */ + +subsys_initcall(pmic_light_init); +module_exit(pmic_light_exit); + +MODULE_DESCRIPTION("PMIC_LIGHT"); +MODULE_AUTHOR("Freescale Semiconductor, Inc."); +MODULE_LICENSE("GPL"); -- cgit v1.2.3