add new file for leds drive

lichee/linux-4.9/drivers/leds/leds-sunxi.h

@@ -0,0 +1,161 @@
+/*
+ * Copyright (C) 2018 Allwinner Technology Limited. All rights reserved.
+ * Albert Yu <yuxyun@allwinnertech.com>
+ *
+ * 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.
+ *
+ */
+#ifndef __LINUX_LEDS_SUNXI_H
+#define __LINUX_LEDS_SUNXI_H
+
+#include <linux/device.h>
+#include <linux/list.h>
+#include <linux/mutex.h>
+#include <linux/rwsem.h>
+#include <linux/spinlock.h>
+#include <linux/timer.h>
+#include <linux/workqueue.h>
+
+#define SUNXI_LEDC_REG_BASE_ADDR 0x06700000
+
+#define SUNXI_MAX_LED_COUNT 1024
+
+#define SUNXI_DEFAULT_LED_COUNT 8
+
+#define SUNXI_RESET_TIME_MIN_NS 42
+#define SUNXI_RESET_TIME_MAX_NS 327000
+
+#define SUNXI_T1H_MIN_NS 42
+#define SUNXI_T1H_MAX_NS 2560
+
+#define SUNXI_T1L_MIN_NS 42
+#define SUNXI_T1L_MAX_NS 1280
+
+#define SUNXI_T0H_MIN_NS 42
+#define SUNXI_T0H_MAX_NS 1280
+
+#define SUNXI_T0L_MIN_NS 42
+#define SUNXI_T0L_MAX_NS 2560
+
+#define SUNXI_WAIT_TIME0_MIN_NS 42
+#define SUNXI_WAIT_TIME0_MAX_NS 10000
+
+#define SUNXI_WAIT_TIME1_MIN_NS 42
+#define SUNXI_WAIT_TIME1_MAX_NS 85000000000
+
+#define SUNXI_WAIT_DATA_TIME_MIN_NS 42
+#define SUNXI_WAIT_DATA_TIME_MAX_NS_IC 655000
+#define SUNXI_WAIT_DATA_TIME_MAX_NS_FPGA 20000000
+
+#define SUNXI_LEDC_FIFO_DEPTH 32 /* 32 * 4 bytes */
+#define SUNXI_LEDC_FIFO_TRIG_LEVEL 15
+
+#if defined(CONFIG_FPGA_V4_PLATFORM) || defined(CONFIG_FPGA_V7_PLATFORM)
+#define SUNXI_FPGA_LEDC
+#endif
+
+enum sunxi_ledc_output_mode_val {
+	SUNXI_OUTPUT_GRB = 0 << 6,
+	SUNXI_OUTPUT_GBR = 1 << 6,
+	SUNXI_OUTPUT_RGB = 2 << 6,
+	SUNXI_OUTPUT_RBG = 3 << 6,
+	SUNXI_OUTPUT_BGR = 4 << 6,
+	SUNXI_OUTPUT_BRG = 5 << 6
+};
+
+struct sunxi_ledc_output_mode {
+	char *str;
+	enum sunxi_ledc_output_mode_val val;
+};
+
+enum sunxi_ledc_trans_mode_val {
+	LEDC_TRANS_CPU_MODE,
+	LEDC_TRANS_DMA_MODE
+};
+
+struct sunxi_ledc_trans_mode {
+	char *str;
+	enum sunxi_ledc_trans_mode_val val;
+};
+
+enum sunxi_ledc_reg {
+	LEDC_CTRL_REG_OFFSET              = 0x00,
+	LED_T01_TIMING_CTRL_REG_OFFSET    = 0x04,
+	LEDC_DATA_FINISH_CNT_REG_OFFSET   = 0x08,
+	LED_RESET_TIMING_CTRL_REG_OFFSET  = 0x0c,
+	LEDC_WAIT_TIME0_CTRL_REG          = 0x10,
+	LEDC_DATA_REG_OFFSET              = 0x14,
+	LEDC_DMA_CTRL_REG                 = 0x18,
+	LEDC_INT_CTRL_REG_OFFSET          = 0x1c,
+	LEDC_INT_STS_REG_OFFSET           = 0x20,
+	LEDC_WAIT_TIME1_CTRL_REG          = 0x28,
+	LEDC_VER_NUM_REG                  = 0x2c,
+	LEDC_FIFO_DATA                    = 0x30,
+	LEDC_TOTAL_REG_SIZE = LEDC_FIFO_DATA + SUNXI_LEDC_FIFO_DEPTH
+};
+
+enum sunxi_ledc_irq_ctrl_reg {
+	LEDC_TRANS_FINISH_INT_EN     = (1 << 0),
+	LEDC_FIFO_CPUREQ_INT_EN      = (1 << 1),
+	LEDC_WAITDATA_TIMEOUT_INT_EN = (1 << 3),
+	LEDC_FIFO_OVERFLOW_INT_EN    = (1 << 4),
+	LEDC_GLOBAL_INT_EN           = (1 << 5),
+};
+
+enum sunxi_ledc_irq_status_reg {
+	LEDC_TRANS_FINISH_INT     = (1 << 0),
+	LEDC_FIFO_CPUREQ_INT      = (1 << 1),
+	LEDC_WAITDATA_TIMEOUT_INT = (1 << 3),
+	LEDC_FIFO_OVERFLOW_INT    = (1 << 4),
+	LEDC_FIFO_FULL            = (1 << 16),
+	LEDC_FIFO_EMPTY           = (1 << 17),
+};
+
+enum sunxi_led_type {
+	LED_TYPE_R,
+	LED_TYPE_G,
+	LED_TYPE_B
+};
+
+struct sunxi_led_info {
+	enum sunxi_led_type type;
+	struct led_classdev cdev;
+};
+
+struct sunxi_led_classdev_group {
+	u32 led_num;
+	struct sunxi_led_info r;
+	struct sunxi_led_info g;
+	struct sunxi_led_info b;
+};
+
+struct sunxi_led {
+	u32 reset_ns;
+	u32 t1h_ns;
+	u32 t1l_ns;
+	u32 t0h_ns;
+	u32 t0l_ns;
+	u32 wait_time0_ns;
+	long long wait_time1_ns;
+	u32 wait_data_time_ns;
+	u32 irqnum;
+	u32 led_count;
+	u32 *data;
+	u32 length;
+	u32 transmitted_data;
+	spinlock_t lock;
+	struct device *dev;
+	dma_addr_t src_dma;
+	struct dma_chan *dma_chan;
+	struct timespec64 start_time;
+	struct clk *clk_ledc;
+	struct clk *clk_cpuapb;
+	void __iomem *iomem_reg_base;
+	struct sunxi_ledc_output_mode output_mode;
+	struct  sunxi_ledc_trans_mode trans_mode;
+	struct sunxi_led_classdev_group *pcdev_group;
+};
+
+#endif /* __LINUX_LEDS_SUNXI_H */