diff options
| author | sundm75 <[email protected]> | 2018-01-15 14:56:48 +0800 |
|---|---|---|
| committer | sundm75 <[email protected]> | 2018-01-15 14:56:48 +0800 |
| commit | b08ff9eee2461cb6654d52df1d29d6360f05ff97 (patch) | |
| tree | 97a63a07398ec34c6aedb17570634e21bccb399d /bsp/ls1cdev/drivers/touch.c | |
| parent | 123af35c942cb216096a8ef3c290b9e389688db7 (diff) | |
[bsp] Add SmartloongV3 display,touch,msd, hw_i2c driver
Diffstat (limited to 'bsp/ls1cdev/drivers/touch.c')
| -rw-r--r-- | bsp/ls1cdev/drivers/touch.c | 607 |
1 files changed, 607 insertions, 0 deletions
diff --git a/bsp/ls1cdev/drivers/touch.c b/bsp/ls1cdev/drivers/touch.c new file mode 100644 index 0000000000..5172b7a359 --- /dev/null +++ b/bsp/ls1cdev/drivers/touch.c @@ -0,0 +1,607 @@ +/* + * File : touch.c + * This file is part of RT-Thread RTOS + * COPYRIGHT (C) 2006 - 2012, RT-Thread Development Team + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * 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. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Change Logs: + * Date Author Notes + * 2017-12-30 Sundm75 first version + */ + +#include <stdbool.h> +#include <drivers/spi.h> +#include "ls1c.h" +#include "ls1c_gpio.h" +#include "ls1c_spi.h" +#include "drv_spi.h" +#include "touch.h" + +#include <rtgui/calibration.h> +#include <rtthread.h> +#include <rtdevice.h> +#include <rtgui/event.h> +#include <rtgui/kbddef.h> +#include <rtgui/rtgui_server.h> +#include <rtgui/rtgui_system.h> + +//����Ļ ����Ҫ _ILI_HORIZONTAL_DIRECTION_ +//����Ļ ��Ҫ _ILI_HORIZONTAL_DIRECTION_ + +//#define _ILI_HORIZONTAL_DIRECTION_ + +#if defined(_ILI_HORIZONTAL_DIRECTION_) +#define X_WIDTH 272 +#define Y_WIDTH 480 +#else +#define X_WIDTH 480 +#define Y_WIDTH 272 +#endif +/* +TOUCH INT: 84 +*/ +#define IS_TOUCH_UP() gpio_get(TOUCH_INT_PIN) + +#define led_gpio 52 // led1ָʾ + +#define DUMMY 0x00 + +/* +7 6 - 4 3 2 1-0 +s A2-A0 MODE SER/DFR PD1-PD0 +*/ +/* bit[1:0] power-down */ +#define POWER_MODE0 (0) /* Power-Down Between Conversions. When */ + /* each conversion is finished, the converter */ + /* enters a low-power mode. At the start of the */ + /* next conversion, the device instantly powers up */ + /* to full power. There is no need for additional */ + /* delays to ensure full operation, and the very first */ + /* conversion is valid. The Y? switch is on when in */ + /* power-down.*/ +#define POWER_MODE1 (1) /* Reference is off and ADC is on. */ +#define POWER_MODE2 (2) /* Reference is on and ADC is off. */ +#define POWER_MODE3 (3) /* Device is always powered. Reference is on and */ + /* ADC is on. */ +/* bit[2] SER/DFR */ +#define DIFFERENTIAL (0<<2) +#define SINGLE_ENDED (1<<2) +/* bit[3] mode */ +#define MODE_12BIT (0<<3) +#define MODE_8BIT (1<<3) +/* bit[6:4] differential mode */ +#define MEASURE_X (((1<<2) | (0<<1) | (1<<0))<<4) +#define MEASURE_Y (((0<<2) | (0<<1) | (1<<0))<<4) +#define MEASURE_Z1 (((0<<2) | (1<<1) | (1<<0))<<4) +#define MEASURE_Z2 (((1<<2) | (0<<1) | (0<<0))<<4) +/* bit[7] start */ +#define START (1<<7) + +/* X Y change. */ +#define TOUCH_MSR_X (START | MEASURE_X | MODE_12BIT | DIFFERENTIAL | POWER_MODE0) +#define TOUCH_MSR_Y (START | MEASURE_Y | MODE_12BIT | DIFFERENTIAL | POWER_MODE0) + + +/* ���¶���XPT2046 �Ĵ�����λ��*/ +#if defined(_ILI_HORIZONTAL_DIRECTION_) +#define MIN_X_DEFAULT 2047 +#define MAX_X_DEFAULT 47 +#define MIN_Y_DEFAULT 102 +#define MAX_Y_DEFAULT 1939 +#else +#define MIN_X_DEFAULT 47 +#define MAX_X_DEFAULT 2047 +#define MIN_Y_DEFAULT 1939 +#define MAX_Y_DEFAULT 102 +#endif + + + +#define SAMP_CNT 8 //the adc array size +#define SAMP_CNT_DIV2 4 //the middle of the adc array +#define SH 10 // Valve value + + +/*�궨�� */ +#define TOUCH_SPI_X SPI1 +#define TOUCH_INT_PIN 84 +#define TOUCH_CS_PIN 49 +#define TOUCH_SCK_PIN 46 +#define TOUCH_MISO_PIN 47 +#define TOUCH_MOSI_PIN 48 + + +/*�����ṹ�彫��Ҫ�õ��Ķ������д��*/ +struct rtgui_touch_device +{ + struct rt_device parent; /* ����ע���豸*/ + + rt_uint16_t x, y; /* ��¼��ȡ����λ��ֵ */ + + rt_bool_t calibrating; /* ����У��־ */ + rt_touch_calibration_func_t calibration_func;/* �������� ����ָ�� */ + + rt_uint16_t min_x, max_x; /* У�� X ������С ���ֵ */ + rt_uint16_t min_y, max_y; /* У�� Y ������С ���ֵ */ + + struct rt_spi_device * spi_device; /* SPI �豸 ����ͨ�� */ + struct rt_event event; /* �¼�ͬ�������ڡ����жϡ� */ +}; +static struct rtgui_touch_device *touch = RT_NULL; + +static rt_err_t touch_send_then_recv(struct rt_spi_device *device, + const void *send_buf, + rt_size_t send_length, + void *recv_buf, + rt_size_t recv_length) +{ + rt_err_t result; + struct rt_spi_message message; + rt_uint8_t dummy[128] ; + + rt_memset(dummy, DUMMY, sizeof(dummy)); + + RT_ASSERT(device != RT_NULL); + RT_ASSERT(device->bus != RT_NULL); + + result = rt_mutex_take(&(device->bus->lock), RT_WAITING_FOREVER); + if (result == RT_EOK) + { + if (device->bus->owner != device) + { + /* not the same owner as current, re-configure SPI bus */ + result = device->bus->ops->configure(device, &device->config); + if (result == RT_EOK) + { + /* set SPI bus owner */ + device->bus->owner = device; + } + else + { + /* configure SPI bus failed */ + result = -RT_EIO; + goto __exit; + } + } + + /* send data */ + message.send_buf = send_buf; + message.recv_buf = RT_NULL; + message.length = send_length; + message.cs_take = 1; + message.cs_release = 0; + message.next = RT_NULL; + + result = device->bus->ops->xfer(device, &message); + if (result == 0) + { + result = -RT_EIO; + goto __exit; + } + + /* recv data */ + message.send_buf = dummy; + message.recv_buf = recv_buf; + message.length = recv_length; + message.cs_take = 0; + message.cs_release = 1; + message.next = RT_NULL; + + result = device->bus->ops->xfer(device, &message); + if (result == 0) + { + result = -RT_EIO; + goto __exit; + } + + result = RT_EOK; + } + else + { + return -RT_EIO; + } + +__exit: + rt_mutex_release(&(device->bus->lock)); + + return result; +} + + +static void rtgui_touch_calculate(void) +{ + if (touch != RT_NULL) + { + /* read touch */ + { + rt_uint8_t i, j, k, min; + rt_uint16_t temp; + rt_uint16_t tmpxy[2][SAMP_CNT]; + rt_uint8_t send_buffer[1]; + rt_uint8_t recv_buffer[2]; + for(i=0; i<SAMP_CNT; i++) + { + send_buffer[0] = TOUCH_MSR_X; + touch_send_then_recv(touch->spi_device, send_buffer, 1, recv_buffer, 2); + rt_kprintf("touch x: %d ",(recv_buffer[0]*256|recv_buffer[1])>>4); +#if defined(_ILI_HORIZONTAL_DIRECTION_) + tmpxy[1][i] = (recv_buffer[0]<<8)|recv_buffer[1] ; + tmpxy[1][i] >>= 4; +#else + tmpxy[0][i] = (recv_buffer[0]<<8)|recv_buffer[1] ; + tmpxy[0][i] >>=4; + +#endif + send_buffer[0] = TOUCH_MSR_Y; + touch_send_then_recv(touch->spi_device, send_buffer, 1, recv_buffer, 2); + rt_kprintf("touch y: %d \n",(recv_buffer[0]*256|recv_buffer[1])>>4); + +#if defined(_ILI_HORIZONTAL_DIRECTION_) + tmpxy[0][i] = (recv_buffer[0]<<8)|recv_buffer[1] ; + tmpxy[0][i] >>= 4; +#else + tmpxy[1][i] = (recv_buffer[0]<<8)|recv_buffer[1] ; + tmpxy[1][i] >>= 4; +#endif + } + /*�ٴδ����ж�*/ + send_buffer[0] = 1 << 7; + touch_send_then_recv(touch->spi_device, send_buffer, 1, recv_buffer, 2); + touch_send_then_recv(touch->spi_device, send_buffer, 1, recv_buffer, 2); + /* calculate average */ + { + rt_uint32_t total_x = 0; + rt_uint32_t total_y = 0; + for(k=0; k<2; k++) + { + // sorting the ADC value + for(i=0; i<SAMP_CNT-1; i++) + { + min=i; + for (j=i+1; j<SAMP_CNT; j++) + { + if (tmpxy[k][min] > tmpxy[k][j]) + min=j; + } + temp = tmpxy[k][i]; + tmpxy[k][i] = tmpxy[k][min]; + tmpxy[k][min] = temp; + } + //check value for Valve value + if((tmpxy[k][SAMP_CNT_DIV2+1]-tmpxy[k][SAMP_CNT_DIV2-2]) > SH) + { + return; + } + } + total_x=tmpxy[0][SAMP_CNT_DIV2-2]+tmpxy[0][SAMP_CNT_DIV2-1]+tmpxy[0][SAMP_CNT_DIV2]+tmpxy[0][SAMP_CNT_DIV2+1]; + total_y=tmpxy[1][SAMP_CNT_DIV2-2]+tmpxy[1][SAMP_CNT_DIV2-1]+tmpxy[1][SAMP_CNT_DIV2]+tmpxy[1][SAMP_CNT_DIV2+1]; + //calculate average value + touch->x=total_x>>2; + touch->y=total_y>>2; + rt_kprintf("touch->x:%d touch->y:%d\r\n", touch->x, touch->y); + } /* calculate average */ + } /* read touch */ + + /* if it's not in calibration status */ + /*����ֵ����*/ + if (touch->calibrating != RT_TRUE) + { + if (touch->max_x > touch->min_x) + { + touch->x = (touch->x - touch->min_x) * X_WIDTH/(touch->max_x - touch->min_x); + } + else + { + touch->x = (touch->min_x - touch->x) * X_WIDTH/(touch->min_x - touch->max_x); + } + + if (touch->max_y > touch->min_y) + { + touch->y = (touch->y - touch->min_y) * Y_WIDTH /(touch->max_y - touch->min_y); + } + else + { + touch->y = (touch->min_y - touch->y) * Y_WIDTH /(touch->min_y - touch->max_y); + } + } + } +} +#include "ls1c_regs.h" +#define TOUCH_INT_EN __REG32(LS1C_INT4_EN) +rt_inline void touch_int_cmd(rt_bool_t NewState) +{ + if(NewState == RT_TRUE) + { + //TOUCH_INT_EN |= (1<<(TOUCH_INT_PIN-64)); + reg_set_one_bit(LS1C_INT4_EN, 1<<(TOUCH_INT_PIN-64)); + } + else + { + //TOUCH_INT_EN &=(~ (1<<(TOUCH_INT_PIN-64))); + reg_clr_one_bit(LS1C_INT4_EN, 1<<(TOUCH_INT_PIN-64)); + } + +} + +void ls1c_touch_irqhandler(void) /* TouchScreen */ +{ + if(gpio_get(TOUCH_INT_PIN)==0) + { + /* ���������º���� */ + if (gpio_level_low == gpio_get(led_gpio)) + gpio_set(led_gpio, gpio_level_high); + else + gpio_set(led_gpio, gpio_level_low); + touch_int_cmd(RT_FALSE); + rt_event_send(&touch->event, 1); + } +} + +/*�ܽų�ʼ���������жϴ�SPI1 CS0 �豸*/ +rt_inline void touch_init(void) +{ + unsigned int touch_int_gpio = TOUCH_INT_PIN; // �������ж� + int touch_irq = LS1C_GPIO_TO_IRQ(touch_int_gpio); + + // ��ʼ�������ж� + gpio_set_irq_type(touch_int_gpio, IRQ_TYPE_EDGE_FALLING); + rt_hw_interrupt_install(touch_irq, ls1c_touch_irqhandler, RT_NULL, "touch"); + rt_hw_interrupt_umask(touch_irq); + gpio_init(touch_int_gpio, gpio_mode_input); + + // ��ʼ��led + gpio_init(led_gpio, gpio_mode_output); + gpio_set(led_gpio, gpio_level_high); +} + + +/* RT-Thread Device Interface */ +static rt_err_t rtgui_touch_init (rt_device_t dev) +{ + rt_uint8_t send; + rt_uint8_t recv_buffer[2]; + struct rtgui_touch_device * touch_device = (struct rtgui_touch_device *)dev; + + touch_init(); + rt_kprintf("touch_init ...\n"); + send = START | DIFFERENTIAL | POWER_MODE0; + touch_send_then_recv(touch->spi_device, &send, 1, recv_buffer, 2); + + return RT_EOK; +} + +static rt_err_t rtgui_touch_control (rt_device_t dev, int cmd, void *args) +{ + switch (cmd) + { + case RT_TOUCH_CALIBRATION: + touch->calibrating = RT_TRUE; + touch->calibration_func = (rt_touch_calibration_func_t)args; + break; + + case RT_TOUCH_NORMAL: + touch->calibrating = RT_FALSE; + break; + + case RT_TOUCH_CALIBRATION_DATA: + { + struct calibration_data* data; + data = (struct calibration_data*) args; + + //update + touch->min_x = data->min_x; + touch->max_x = data->max_x; + touch->min_y = data->min_y; + touch->max_y = data->max_y; + } + break; + } + + return RT_EOK; +} + +void _set_mouse_position(rt_uint32_t X, rt_uint32_t Y) +{} +static void touch_thread_entry(void *parameter) +{ + rt_bool_t touch_down = RT_FALSE; + rt_uint32_t event_value; + struct rtgui_event_mouse emouse; + static struct _touch_previous + { + rt_uint32_t x; + rt_uint32_t y; + } touch_previous; + + RTGUI_EVENT_MOUSE_BUTTON_INIT(&emouse); + emouse.wid = RT_NULL; + + while(1) + { + /* ���յ������ж��¼� */ + if(rt_event_recv(&touch->event, + 1, + RT_EVENT_FLAG_OR | RT_EVENT_FLAG_CLEAR, + 100, + &event_value) + == RT_EOK) + { + while(1) + { + if (IS_TOUCH_UP()) + { + /* ������̧�� */ + /* touch up */ + emouse.button = (RTGUI_MOUSE_BUTTON_LEFT |RTGUI_MOUSE_BUTTON_UP); + + /* use old value */ + emouse.x = touch->x; + emouse.y = touch->y; + + if(touch_down != RT_TRUE) + { + touch_int_cmd(RT_TRUE); + break; + } + + if ((touch->calibrating == RT_TRUE) && (touch->calibration_func != RT_NULL)) + { + /* ����У���� */ + /* callback function */ + touch->calibration_func(emouse.x, emouse.y); + + } + else + { + /* ��ui���ʹ������� */ + rtgui_server_post_event(&emouse.parent, sizeof(struct rtgui_event_mouse)); + } + rt_kprintf("touch up: (%d, %d)\n", emouse.x, emouse.y); + + /* clean */ + touch_previous.x = touch_previous.y = 0; + touch_down = RT_FALSE; + + touch_int_cmd(RT_TRUE); + break; + } /* touch up */ + else /* touch down or move */ + { + if(touch_down == RT_FALSE) + { + rt_thread_delay(RT_TICK_PER_SECOND / 10); + } + else + { + rt_thread_delay(5); + } + + if(IS_TOUCH_UP()) continue; + + /* calculation */ + rtgui_touch_calculate(); + + /* send mouse event */ + emouse.parent.type = RTGUI_EVENT_MOUSE_BUTTON; + emouse.parent.sender = RT_NULL; + + emouse.x = touch->x; + emouse.y = touch->y; + _set_mouse_position(emouse.x, emouse.y); + /* ������ */ + /* init mouse button */ + emouse.button = (RTGUI_MOUSE_BUTTON_LEFT |RTGUI_MOUSE_BUTTON_DOWN); + + /* send event to server */ + if (touch->calibrating != RT_TRUE) + { +#define previous_keep 8 + /* filter. */ + if((touch_previous.x > touch->x + previous_keep) + || (touch_previous.x < touch->x - previous_keep) + || (touch_previous.y > touch->y + previous_keep) + || (touch_previous.y < touch->y - previous_keep)) + { + touch_previous.x = touch->x; + touch_previous.y = touch->y; + /* ��ui���ʹ������� */ + rtgui_server_post_event(&emouse.parent, sizeof(struct rtgui_event_mouse)); + if(touch_down == RT_FALSE) + { + touch_down = RT_TRUE; + rt_kprintf("touch down: (%d, %d)\n", emouse.x, emouse.y); + } + else + { + rt_kprintf("touch motion: (%d, %d)\n", emouse.x, emouse.y); + } + } + } + else + { + touch_down = RT_TRUE; + } + } /* touch down or move */ + } /* read touch */ + } /* event recv */ + } /* thread while(1) */ +} + + +rt_err_t rtgui_touch_hw_init(const char * spi_device_name) +{ + rt_uint32_t arg[2]; + struct rt_device * spi_device; + struct rt_thread * touch_thread; + rt_err_t err; + + rt_kprintf("spi1 cs0 start...\n"); + spi_device = rt_device_find("spi10"); + if(spi_device == RT_NULL) + { + rt_kprintf("Did not find spi1, exit thread....\n"); + return; + } + err = rt_device_open(spi_device, RT_DEVICE_OFLAG_RDWR); + if(err != RT_EOK) + { + rt_kprintf("Open spi1 failed %08X, exit thread....\n", err); + return; + } + + /* config spi */ + { + struct rt_spi_configuration cfg; + cfg.data_width = 8; + cfg.mode = RT_SPI_MODE_0; + cfg.max_hz = 200 * 1000; /* 200K */ + rt_spi_configure((struct rt_spi_device *)spi_device, &cfg); + } + + touch = (struct rtgui_touch_device*)rt_malloc (sizeof(struct rtgui_touch_device)); + if (touch == RT_NULL) return RT_ENOMEM; /* no memory yet */ + + /* clear device structure */ + rt_memset(&(touch->parent), 0, sizeof(struct rt_device)); + + rt_event_init(&touch->event, "touch", RT_IPC_FLAG_FIFO); + + touch->spi_device = (struct rt_spi_device *)spi_device; + touch->calibrating = false; + + touch->min_x = MIN_X_DEFAULT; + touch->max_x = MAX_X_DEFAULT; + touch->min_y = MIN_Y_DEFAULT; + touch->max_y = MAX_Y_DEFAULT; + + /* init device structure */ + touch->parent.type = RT_Device_Class_Miscellaneous; + touch->parent.init = rtgui_touch_init; + touch->parent.control = rtgui_touch_control; + touch->parent.user_data = RT_NULL; + + /* register touch device to RT-Thread */ + rt_device_register(&(touch->parent), "touch", RT_DEVICE_FLAG_RDWR); + + + touch_thread = rt_thread_create("touch_thread", + touch_thread_entry, RT_NULL, + 4096, RTGUI_SVR_THREAD_PRIORITY-1, 1); + if (touch_thread != RT_NULL) rt_thread_startup(touch_thread); + + rt_device_init((rt_device_t)touch); + return RT_EOK; +} |
