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dbg_uart.c
454 lines (397 loc) · 12.3 KB
/
dbg_uart.c
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/*****************************************************************
** **
** Copyright (C) 2004 Amlogic,Inc. **
** All rights reserved **
** Filename : tp_uart.c /Project:AVOS **
** Revision : 1.0 **
** **
*****************************************************************/
#include "ioapi.h"
//#include "uart.h"
#include "chipsupport/chipsupport.h"
#include <drivers/char/tty/tty_inc.h>
#include <drivers/usb/serial/usb_serial_inc.h>
#define wr(reg, val) *(volatile unsigned *)(reg) = (val)
#define rd(reg) (*(volatile unsigned *)(reg))
#define MAX_READ_LENGTH 1024
#define BUF_SIZE 16
#define tty_malloc AVMem_malloc
#define tty_free AVMem_free
#define TTY__TEST_DEVICE_TASK_PRI 29
#define TTY_TEST_STK_SIZE (2*1024)
#define READ_THRESHOLD 10
#define TTY_RECEVIED_DATA_BUF_SZIE 0x1000
struct tty_device {
int fd;
int open_count;
OS_STK *TTY_DEVICE_Stk;
INT16U tty_task_id;
struct tty_event *read_event;
u8 is_thread_creat;
u8 is_back_display;
struct timios_data *termios;
char * recevied_data_buf;
int data_thretshold;
};
struct tty_device * dev;
static void tty_dev_close(struct tty_device *dev)
{
close(dev->fd);
dev->open_count -= 1;
}
static int tty_dev_open(struct tty_device *dev, char *name, int mode)
{
dev->fd = open(name, mode);
if(dev->fd < 0) {
printf("tty_open: error when open the %s device!\n", name);
return -1;
}
return dev->fd;
}
static struct tty_device *tty_devcie_alloc()
{
struct tty_device *dev;
dev = tty_malloc(sizeof(struct tty_device));
if(!dev)
return 0;
memset(dev, 0, sizeof(struct tty_device));
dev->termios = tty_malloc(sizeof(struct timios_data));
if(!dev->termios) {
tty_free(dev);
return 0;
}
dev->recevied_data_buf = tty_malloc(TTY_RECEVIED_DATA_BUF_SZIE);
if(!dev->recevied_data_buf) {
tty_free(dev->termios);
tty_free(dev);
return 0;
}
dev->read_event = tty_malloc(sizeof(struct tty_event));
if(!dev->read_event) {
tty_free(dev->termios);
tty_free(dev);
tty_free(dev->recevied_data_buf);
}
return dev;
}
static void tty_device_free(struct tty_device *dev)
{
if(dev->termios) {
tty_free(dev->termios);
dev->termios = NULL;
}
if(dev){
tty_free(dev);
dev = NULL;
}
tty_free(dev->read_event);
}
static int tty_test_sleep_thread(struct tty_device *dev)
{
u8 ret;
AVSemPend(dev->read_event->event, 0, &ret);
if (ret != OS_NO_ERR)
return -1;
return 0;
}
static unsigned char split_cmd(struct tty_device *dev, char *cach, char param[][BUF_SIZE])
{
unsigned char i, j, k;
char s[45];
j = k = 0;
memset(s,0,45);
for(i = 0; i < strlen(cach); i++)
{
if(cach[i] == 32)
{
if(j == 0)
continue;
j = 0;
if(k < 4)
++k;
else
goto ERROR;
}
else
{
if(k == 0 && j >= 16)
goto OVER1;
if(k > 0 && j >= 10)
goto OVER2;
param[k][j] = cach[i];
++j;
}
}
return 0;
ERROR:
write(dev->fd,"Too many parameters!\xD\xA",22);
return 4;
OVER1:
sprintf(s,"Length of parameter %d must be less than 32!\xD\xA",k);
write(dev->fd,s,45);
return 1;
OVER2:
sprintf(s,"Length of parameter %d must be less than 10!\xD\xA",k);
write(dev->fd,s,45);
return 3;
}
static void process_cmd(struct tty_device *dev, char param[][BUF_SIZE])
{
unsigned mem_addr, mem_len, mem_val, mem_mask,mem_val_cach, i;
unsigned char mem_offset;
unsigned char cmd_flag = 0;
char strPrt[BUF_SIZE * 2];
char *strErr;
memset(strPrt,0,BUF_SIZE * 2);
if(strcmp(param[0],"clear") == 0)
{
write(dev->fd,"\xC\xC",2);
}
else if(strcmp(param[0],"getmem") == 0)
{
if(strlen(param[1]) == 0)
goto ERROR1;
if((param[1][0] == 48 && (param[1][1] == 120 || param[1][1] == 88)) == 0)
goto ERROR2;
mem_addr = strtol(param[1], &strErr, 0);
if(strlen(strErr))
goto ERROR2;
if(strlen(param[2]))
{
mem_len = strtol(param[2], &strErr, 0);
if(strlen(strErr))
goto ERROR3;
if(mem_len > MAX_READ_LENGTH)
goto ERROR4;
for(i=0;i<mem_len>>2;i++)
{
memset(strPrt,0,BUF_SIZE * 2);
sprintf(strPrt,"0x%08x: 0x%08x\xD\xA", mem_addr+(i<<2), rd(mem_addr+(i<<2)));
write(dev->fd, strPrt, strlen(strPrt));
}
}
else
{
sprintf(strPrt,"0x%08x: 0x%08x\xD\xA", mem_addr, rd(mem_addr));
write(dev->fd, strPrt, strlen(strPrt));
}
}
else if(strcmp(param[0],"setmem") == 0)
{
cmd_flag = 1;
if(strlen(param[1]) == 0)
goto ERROR1;
if(!(param[1][0] == 48 && (param[1][1] == 120 || param[1][1] == 88)))
goto ERROR2;
mem_addr = strtol(param[1], &strErr, 0);
if(strlen(strErr))
goto ERROR2;
if(strlen(param[2]) == 0)
goto ERROR3;
mem_val = strtol(param[2], &strErr, 0);
if(strlen(strErr))
goto ERROR3;
if(strlen(param[3]))
{
mem_mask = strtol(param[3], &strErr, 0);
if(strlen(strErr))
goto ERROR5;
mem_val_cach = rd(mem_addr);
if(strlen(param[4]))
{
mem_offset = strtol(param[4], &strErr, 0);
if(strlen(strErr))
goto ERROR6;
if(mem_offset > 31)
goto ERROR7;
mem_val_cach &= ~(mem_mask << mem_offset);
mem_val_cach |= (mem_val & mem_mask) << mem_offset;
}
else
{
mem_val_cach &= ~mem_mask;
mem_val_cach |= mem_val & mem_mask;
}
}
else
{
mem_val_cach = mem_val;
}
wr(mem_addr, mem_val_cach);
sprintf(strPrt,"0x%08x: 0x%08x\xD\xA", mem_addr, rd(mem_addr));
write(dev->fd, strPrt, strlen(strPrt));
}
else
{
write(dev->fd,"Unknown command\xD\xA",18);
}
return;
ERROR7:
write(dev->fd,"Offset must be less than 32!\xD\xA",30);
return;
ERROR6:
write(dev->fd,"Invalid Parameter 4!\xD\xA",22);
goto ERROR1;
ERROR5:
write(dev->fd,"Invalid Parameter 3!\xD\xA",22);
goto ERROR1;
ERROR4:
write(dev->fd,"Over MAX memory length(1k)!\xD\xA",29);
return;
ERROR3:
write(dev->fd,"Invalid Parameter 2!\xD\xA",22);
goto ERROR1;
ERROR2:
write(dev->fd,"Invalid Parameter 1!\xD\xA",22);
ERROR1:
if(cmd_flag)
write(dev->fd,"setmem memory(0x********) value [mask] [offset]\xD\xA",49);
else
write(dev->fd,"getmem memory(0x********) [length(bytes)]\xD\xA",43);
return;
}
static void tpdbg_uart_task(void *arg)
{
struct tty_device *dev = (struct tty_device *)arg;
struct tty_data_avail_cmd cmd;
unsigned buff_len=0;
unsigned char i, rd_len=0;
unsigned char buff[BUF_SIZE];
char cmd_cach[BUF_SIZE * 6];
char cmd_param[5][BUF_SIZE];
unsigned char rw_flag = 1;
unsigned char rw_pointer = 0;
memset(cmd_cach,0,79);
memset(cmd_param,0,BUF_SIZE * 5);
while(1)
{
tty_test_sleep_thread(dev);
if(dev->fd < 0)
continue;
while(1)
{
if(rw_flag == 2)
{
rw_flag = 1;
if(split_cmd(dev, cmd_cach, cmd_param) == 0)
{
if(strlen(cmd_param[0]) > 0)
{
process_cmd(dev, cmd_param);
}
}
rw_pointer = 0;
memset(cmd_cach,0,79);
memset(cmd_param,0,BUF_SIZE * 5);
}
else
{
cmd.tty_buf_index = TTY_READ_BUF_INDEX;
ioctl(dev->fd,TTY_IOCTL_GET_DATA_LEN,&cmd);
buff_len = cmd.data_avail;
if(!buff_len)
break;
memset(buff,0,BUF_SIZE);
if(buff_len<BUF_SIZE)
{
read(dev->fd,&buff,buff_len);
rd_len = buff_len;
}
else
{
read(dev->fd,&buff,BUF_SIZE);
rd_len = BUF_SIZE;
}
for(i = 0; i < rd_len; i++)
{
if((buff[i] >= 48 && buff[i] <= 57) || (buff[i] >= 65 && buff[i] <= 90) || (buff[i] >= 97 && buff[i] <= 122) || buff[i] == 13 || buff[i] == 32 || buff[i] == 8)
{
if(buff[i] == 13)
{
rw_flag = 2;
write(dev->fd,"\xD\xA",2);
break;
}
else if(buff[i] == 8)
{
if(rw_pointer)
{
--rw_pointer;
cmd_cach[rw_pointer] = 0;
write(dev->fd,"\x8\x20\x8",3);
}
}
else
{
if(rw_pointer < 79)
{
++rw_pointer;
cmd_cach[rw_pointer - 1] = buff[i];
write(dev->fd,(char *)&buff[i],1);
}
}
}
}
}
}
}
return;
}
int tpdbg_uart_init(void)
{
int ret;
u8 flag;
struct timios_data *termios;
dev = tty_devcie_alloc();
if(!dev)
return -1;
termios = dev->termios;
tty_dev_open(dev, USB_SERIAL0_NAME, O_RDWR);
if(dev->fd < 0) {
printf("tty_init: error when open the %s file\n", USB_SERIAL0_NAME);
return -1;
}
ret = ioctl(dev->fd, TTY_IOCTL_GET_TERMIOS, termios);
if(ret < 0) {
printf("tty_init: get timios error!\n");
return -1;
}
termios->baudrate = 115200;//460800;
termios->stop_bit = 1;
termios->check = 0;
termios->databits = 8;
ret = ioctl(dev->fd, TTY_IOCTL_SET_TERMIOS, termios);
if(ret < 0)
{
printf("tty_init: set timios error!\n");
goto cleanup;
}
ret = ioctl(dev->fd, TTY_IOCTL_CLEAR_BACK_DISPLAY,0);
if(ret < 0)
goto cleanup;
ret = ioctl(dev->fd, TTY_IOCTL_GET_DEV_EVENT, dev->read_event);
dev->read_event->event = AVSemCreate(0);
if (!dev->read_event->event)
goto cleanup;
dev->read_event->tty_call_back = 0;
dev->read_event->args = 0;
dev->TTY_DEVICE_Stk = (OS_STK *)tty_malloc(TTY_TEST_STK_SIZE * sizeof(OS_STK));
if(!dev->TTY_DEVICE_Stk)
goto cleanup;
ret = AVTaskCreate(tpdbg_uart_task, dev, dev->TTY_DEVICE_Stk + TTY_TEST_STK_SIZE - 1, TTY__TEST_DEVICE_TASK_PRI, &dev->tty_task_id);
if (ret != OS_NO_ERR) {
goto cleanup;
}
dev->is_thread_creat = 1;
dev->data_thretshold = READ_THRESHOLD;
ret = ioctl(dev->fd, TTY_IOCTL_SET_DEV_EVENT, dev->read_event);
if(ret < 0)
printf("tty_init: set timios error!\n");
return 0;
cleanup:
if(dev->read_event->event)
AVSemDel(dev->read_event->event, OS_DEL_ALWAYS, &flag);
if(dev)
tty_device_free(dev);
return -1;
}