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first shell implementation

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This commit is contained in:
tkl 2016-08-02 11:41:47 +02:00
parent a2cddd208f
commit 35af737f68
3 changed files with 61 additions and 5 deletions
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0
source/firmware/kernel/include/list.h → source/firmware/kernel/interface/list.h
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10
source/firmware/kernel/interface/shell.h
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@ -8,7 +8,15 @@
#ifndef SOURCE_FIRMWARE_KERNEL_INTERFACE_SHELL_H_
#define SOURCE_FIRMWARE_KERNEL_INTERFACE_SHELL_H_
typedef void *(*command_callback)(const char*);
struct command {
const char *command;
const command_callback command_callback;
struct list_node item;
};
int shell_init(const struct driver *shell_device);
int shell_add_command(const char *command, const void *callback, const void *param);
int shell_add_command(struct command *command);
#endif /* SOURCE_FIRMWARE_KERNEL_INTERFACE_SHELL_H_ */

56
source/firmware/kernel/shell.c
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@ -7,28 +7,76 @@
#include <stddef.h>
#include <stdbool.h>
#include <string.h>
#include "stack.h"
#include "queue.h"
#include "driver.h"
#include "kernel.h"
#include "list.h"
#include "shell.h"
struct shell_object {
struct list command_list;
const struct driver *shell_device;
};
struct shell_object shell_object;
#define RX_STACK_SIZE 256
stack_t rx_stack[RX_STACK_SIZE];
struct thread_context rx_thread;
void rx_func(void *arg)
static void parse(const char *buffer, unsigned int len)
{
if(NULL == buffer)
return;
struct list_node *it = shell_object.command_list.front;
while(it != NULL) {
struct command *cmd = (struct command *)it->data;
if(strstr(buffer, cmd->command)) {
cmd->command_callback(buffer);
return;
}
it = it->next;
}
}
static void rx_func(void *arg)
{
char buffer[80];
unsigned int index = 0;
int ret = 0;
open(shell_object.shell_device);
while(1) {
ret = read(shell_object.shell_device, &buffer[index],
sizeof(buffer) / sizeof(buffer[0]) - index);
if(ret) {
if(buffer[index + ret - 1] == '\n') {
parse(buffer, index + ret);
index = 0;
}
else
index += ret;
}
}
}
int shell_init(const struct driver *shell_device)
{
if(NULL == shell_device)
return -1;
list_init(&shell_object.command_list);
shell_object.shell_device = shell_device;
thread_create(&rx_thread, rx_stack, RX_STACK_SIZE, rx_func, NULL, THREAD_PRIO_LOW);
return -1;
return 0;
}
int shell_add_command(const char *command, const void *callback, const void *param)
int shell_add_command(struct command *command)
{
return -1;
if(NULL == command)
return -1;
command->item.data = (unsigned int) command;
list_add(&shell_object.command_list, &command->item);
return 1;
}