--- /dev/null
+/* drivers/misc/bp/chips/a8500.c\r
+ *\r
+ * Copyright (C) 2012-2015 ROCKCHIP.\r
+ * Author: luowei <zzc@rock-chips.com>\r
+ *\r
+ * This software is licensed under the terms of the GNU General Public\r
+ * License version 2, as published by the Free Software Foundation, and\r
+ * may be copied, distributed, and modified under those terms.\r
+ *\r
+ * This program is distributed in the hope that it will be useful,\r
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
+ * GNU General Public License for more details.\r
+ *\r
+ */\r
+#include <linux/module.h>\r
+#include <linux/kernel.h>\r
+#include <linux/i2c.h>\r
+#include <linux/irq.h>\r
+#include <linux/gpio.h>\r
+#include <linux/input.h>\r
+#include <linux/platform_device.h>\r
+#include <linux/fs.h>\r
+#include <linux/uaccess.h>\r
+#include <linux/miscdevice.h>\r
+#include <linux/circ_buf.h>\r
+#include <linux/interrupt.h>\r
+#include <linux/miscdevice.h>\r
+#include <mach/iomux.h>\r
+#include <mach/gpio.h>\r
+#include <asm/gpio.h>\r
+#include <linux/delay.h>\r
+#include <linux/poll.h>\r
+#include <linux/wait.h>\r
+#include <linux/wakelock.h>\r
+#include <linux/workqueue.h>\r
+#include <linux/slab.h>\r
+#include <linux/earlysuspend.h>\r
+\r
+#include <linux/bp-auto.h>\r
+ \r
+ \r
+#if 0\r
+#define DBG(x...) printk(x)\r
+#else\r
+#define DBG(x...)\r
+#endif\r
+\r
+\r
+/****************operate according to bp chip:start************/\r
+static int bp_active(struct bp_private_data *bp, int enable)\r
+{ \r
+ int result = 0;\r
+\r
+ if(enable)\r
+ { \r
+ printk("<-----a85xx power on-------->\n"); \r
+ gpio_set_value(bp->ops->bp_power, GPIO_HIGH);\r
+ msleep(100);\r
+ gpio_set_value(bp->ops->bp_en,GPIO_HIGH);\r
+ mdelay(100);\r
+ gpio_set_value(bp->ops->bp_reset, GPIO_LOW);\r
+ mdelay(2500);\r
+ gpio_set_value(bp->ops->bp_en,GPIO_LOW);\r
+ }\r
+ else\r
+ {\r
+ printk("<-----a85xx power off-------->\n");\r
+ gpio_set_value(bp->ops->bp_en, GPIO_LOW);\r
+ msleep(2500);\r
+ gpio_set_value(bp->ops->bp_en, GPIO_HIGH);\r
+ msleep(500);\r
+ gpio_set_value(bp->ops->bp_reset, GPIO_HIGH); \r
+ gpio_set_value(bp->ops->bp_power, GPIO_LOW);\r
+ }\r
+ \r
+ return result;\r
+}\r
+static void ap_wake_bp_work(struct work_struct *work)\r
+{\r
+ return;\r
+}\r
+static int bp_wake_ap(struct bp_private_data *bp)\r
+{\r
+ int result = 0;\r
+ \r
+ bp->suspend_status = 0; \r
+ wake_lock_timeout(&bp->bp_wakelock, 10 * HZ);\r
+ \r
+ return result;\r
+}\r
+static int bp_init(struct bp_private_data *bp)\r
+{\r
+ int result = 0;\r
+ if(bp->pdata->gpio_valid ==0){ \r
+ \r
+ }\r
+ gpio_direction_output(bp->ops->bp_power, GPIO_LOW);\r
+ gpio_direction_output(bp->ops->bp_reset, GPIO_HIGH);\r
+ gpio_direction_output(bp->ops->bp_en, GPIO_LOW);\r
+ gpio_direction_output(bp->ops->ap_wakeup_bp, GPIO_HIGH); \r
+ gpio_direction_input(bp->ops->bp_wakeup_ap);\r
+ gpio_pull_updown(bp->ops->bp_wakeup_ap, 1); \r
+ INIT_DELAYED_WORK(&bp->wakeup_work, ap_wake_bp_work);\r
+ return result;\r
+}\r
+\r
+static int bp_reset(struct bp_private_data *bp)\r
+{\r
+ printk("ioctrl a85xx reset !!! \n");\r
+ gpio_set_value(bp->ops->bp_reset, GPIO_HIGH);\r
+ msleep(2000);\r
+ gpio_set_value(bp->ops->bp_reset, GPIO_LOW); \r
+ return 0;\r
+}\r
+static int bp_shutdown(struct bp_private_data *bp)\r
+{\r
+ int result = 0;\r
+ \r
+ if(bp->ops->active)\r
+ bp->ops->active(bp, 0);\r
+ \r
+ cancel_delayed_work_sync(&bp->wakeup_work); \r
+ \r
+ return result;\r
+}\r
+static int bp_suspend(struct bp_private_data *bp)\r
+{ \r
+ \r
+ bp->suspend_status = 1;\r
+ gpio_set_value(bp->ops->ap_wakeup_bp, GPIO_LOW);\r
+ \r
+ return 0;\r
+}\r
+static int bp_resume(struct bp_private_data *bp)\r
+{\r
+ \r
+ bp->suspend_status = 0; \r
+ gpio_set_value(bp->ops->ap_wakeup_bp, GPIO_HIGH);\r
+ \r
+ return 0;\r
+}\r
+\r
+\r
+struct bp_operate bp_a85xx_ops = {\r
+#if defined(CONFIG_ARCH_RK2928)\r
+ .name = "a85xx",\r
+ .bp_id = BP_ID_A85XX,\r
+ .bp_bus = BP_BUS_TYPE_UART, \r
+ .bp_pid = 0, \r
+ .bp_vid = 0, \r
+ .bp_power = RK2928_PIN3_PC2, // 3g_power\r
+ .bp_en = RK2928_PIN3_PC5,//BP_UNKNOW_DATA, // 3g_en\r
+ .bp_reset = RK2928_PIN0_PB6,\r
+ .ap_ready = RK2928_PIN0_PD0, //\r
+ .bp_ready = RK2928_PIN0_PD6,\r
+ .ap_wakeup_bp = RK2928_PIN3_PC4,\r
+ .bp_wakeup_ap = RK2928_PIN3_PC3, //\r
+ .bp_assert = BP_UNKNOW_DATA,\r
+ .bp_uart_en = BP_UNKNOW_DATA, //EINT9\r
+ .bp_usb_en = BP_UNKNOW_DATA, //W_disable\r
+ .trig = IRQF_TRIGGER_RISING,//IRQF_TRIGGER_FALLING,//IRQF_TRIGGER_RISING,\r
+\r
+ .active = bp_active,\r
+ .init = bp_init,\r
+ .reset = bp_reset,\r
+ .ap_wake_bp = NULL,\r
+ .bp_wake_ap = bp_wake_ap,\r
+ .shutdown = bp_shutdown,\r
+ .read_status = NULL,\r
+ .write_status = NULL,\r
+ .suspend = bp_suspend,\r
+ .resume = bp_resume,\r
+ .misc_name = NULL,\r
+ .private_miscdev = NULL,\r
+#elif defined(CONFIG_ARCH_RK30)\r
+ .name = "a85xx",\r
+ .bp_id = BP_ID_A85XX,\r
+ .bp_bus = BP_BUS_TYPE_UART, \r
+ .bp_pid = 0, \r
+ .bp_vid = 0, \r
+ .bp_power = BP_UNKNOW_DATA, // RK2928_PIN3_PC2, // 3g_power\r
+ .bp_en = BP_UNKNOW_DATA, // RK2928_PIN3_PC5,//BP_UNKNOW_DATA, // 3g_en\r
+ .bp_reset = BP_UNKNOW_DATA, // RK2928_PIN0_PB6,\r
+ .ap_ready = BP_UNKNOW_DATA, // RK2928_PIN0_PD0, //\r
+ .bp_ready = BP_UNKNOW_DATA, // RK2928_PIN0_PD6,\r
+ .ap_wakeup_bp = BP_UNKNOW_DATA, // RK2928_PIN3_PC4,\r
+ .bp_wakeup_ap = BP_UNKNOW_DATA, // RK2928_PIN3_PC3, //\r
+ .bp_assert = BP_UNKNOW_DATA,\r
+ .bp_uart_en = BP_UNKNOW_DATA, //EINT9\r
+ .bp_usb_en = BP_UNKNOW_DATA, //W_disable\r
+ .trig = IRQF_TRIGGER_FALLING,\r
+\r
+ .active = bp_active,\r
+ .init = bp_init,\r
+ .reset = bp_reset,\r
+ .ap_wake_bp = NULL,\r
+ .bp_wake_ap = bp_wake_ap,\r
+ .shutdown = bp_shutdown,\r
+ .read_status = NULL,\r
+ .write_status = NULL,\r
+ .suspend = bp_suspend,\r
+ .resume = bp_resume,\r
+ .misc_name = NULL,\r
+ .private_miscdev = NULL,\r
+#else\r
+ .name = "a85xx",\r
+ .bp_id = BP_ID_A85XX,\r
+ .bp_bus = BP_BUS_TYPE_UART, \r
+ .bp_pid = 0, \r
+ .bp_vid = 0, \r
+ .bp_power = BP_UNKNOW_DATA, // RK2928_PIN3_PC2, // 3g_power\r
+ .bp_en = BP_UNKNOW_DATA, // RK2928_PIN3_PC5,//BP_UNKNOW_DATA, // 3g_en\r
+ .bp_reset = BP_UNKNOW_DATA, // RK2928_PIN0_PB6,\r
+ .ap_ready = BP_UNKNOW_DATA, // RK2928_PIN0_PD0, //\r
+ .bp_ready = BP_UNKNOW_DATA, // RK2928_PIN0_PD6,\r
+ .ap_wakeup_bp = BP_UNKNOW_DATA, // RK2928_PIN3_PC4,\r
+ .bp_wakeup_ap = BP_UNKNOW_DATA, // RK2928_PIN3_PC3, //\r
+ .bp_assert = BP_UNKNOW_DATA,\r
+ .bp_uart_en = BP_UNKNOW_DATA, //EINT9\r
+ .bp_usb_en = BP_UNKNOW_DATA, //W_disable\r
+ .trig = IRQF_TRIGGER_FALLING,\r
+\r
+ .active = bp_active,\r
+ .init = bp_init,\r
+ .reset = bp_reset,\r
+ .ap_wake_bp = NULL,\r
+ .bp_wake_ap = bp_wake_ap,\r
+ .shutdown = bp_shutdown,\r
+ .read_status = NULL,\r
+ .write_status = NULL,\r
+ .suspend = bp_suspend,\r
+ .resume = bp_resume,\r
+ .misc_name = NULL,\r
+ .private_miscdev = NULL,\r
+#endif\r
+};\r
+\r
+/****************operate according to bp chip:end************/\r
+\r
+//function name should not be changed\r
+static struct bp_operate *bp_get_ops(void)\r
+{\r
+ return &bp_a85xx_ops;\r
+}\r
+\r
+static int __init bp_a85xx_init(void)\r
+{\r
+ struct bp_operate *ops = bp_get_ops();\r
+ int result = 0;\r
+ result = bp_register_slave(NULL, NULL, bp_get_ops);\r
+ if(result)\r
+ { \r
+ return result;\r
+ }\r
+ \r
+ if(ops->private_miscdev)\r
+ {\r
+ result = misc_register(ops->private_miscdev);\r
+ if (result < 0) {\r
+ printk("%s:misc_register err\n",__func__);\r
+ return result;\r
+ }\r
+ }\r
+ \r
+ DBG("%s\n",__func__);\r
+ return result;\r
+}\r
+\r
+static void __exit bp_a85xx_exit(void)\r
+{\r
+ //struct bp_operate *ops = bp_get_ops();\r
+ bp_unregister_slave(NULL, NULL, bp_get_ops);\r
+}\r
+\r
+\r
+subsys_initcall(bp_a85xx_init);\r
+module_exit(bp_a85xx_exit);\r
+\r
projects / firefly-linux-kernel-4.4.55.git / commitdiff