minix3/commands/devmand/usb.y

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2020-02-21 00:59:27 +05:30
%{
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "usb_driver.h"
#define YY_NO_INPUT
static struct devmand_usb_driver *current_drv;
static struct devmand_usb_match_id *current_id;
int yylex(void);
void yyerror(char *s)
{
fprintf(stderr,"parsing error: %s\n",s);
}
int yywrap()
{
return 1;
}
%}
%union {
char *string;
}
%start drivers
%token <string> USB_DRIVER DEV_PREFIX BINARY INTERFACE_CLASS INTERFACE_SUB_CLASS EQUALS DEV_TYPE BLOCK_DEV CHAR_DEV UPSCRIPT DOWNSCRIPT
SEMICOLON BRACKET_OPEN BRACKET_CLOSE STRING ID INTERFACE_PROTOCOL
%%
drivers :
driver
{
}
| drivers driver
{
};
driver :
USB_DRIVER STRING {current_drv = add_usb_driver($2);}
BRACKET_OPEN
usb_driver_statements BRACKET_CLOSE
{
};
usb_driver_statements:
usb_driver_statement
{
}
| usb_driver_statements usb_driver_statement
{
};
usb_driver_statement:
{current_id = add_usb_match_id(current_drv);}
ID BRACKET_OPEN usb_device_id_statements BRACKET_CLOSE
{
}
| BINARY EQUALS STRING SEMICOLON
{
current_drv->binary = $3;
}
| DEV_PREFIX EQUALS STRING SEMICOLON
{
current_drv->devprefix = $3;
}
| DEV_TYPE EQUALS BLOCK_DEV SEMICOLON
{
current_drv->dev_type = block_dev;
}
| DEV_TYPE EQUALS CHAR_DEV SEMICOLON
{
current_drv->dev_type = char_dev;
}
| UPSCRIPT EQUALS STRING SEMICOLON
{
current_drv->upscript = $3;
}
| DOWNSCRIPT EQUALS STRING SEMICOLON
{
current_drv->downscript = $3;
};
usb_device_id_statements:
usb_device_id_statement
{
}
|usb_device_id_statements usb_device_id_statement
{
};
usb_device_id_statement:
INTERFACE_CLASS EQUALS STRING SEMICOLON
{
int res;
unsigned int num;
current_id->match_flags |= USB_MATCH_INTERFACE_CLASS;
res = sscanf($3, "0x%x", &num);
if (res != 1) {
fprintf(stderr, "ERROR");
exit(1);
}
current_id->match_id.bInterfaceClass = num;
}
| INTERFACE_SUB_CLASS EQUALS STRING SEMICOLON
{
int res;
unsigned int num;
current_id->match_flags |= USB_MATCH_INTERFACE_SUBCLASS;
res = sscanf($3, "0x%x", &num);
if (res != 1) {
fprintf(stderr, "ERROR");
exit(1);
}
current_id->match_id.bInterfaceSubClass = num;
}
| INTERFACE_PROTOCOL EQUALS STRING SEMICOLON
{
int res;
unsigned int num;
current_id->match_flags |= USB_MATCH_INTERFACE_PROTOCOL;
res = sscanf($3, "0x%x", &num);
if (res != 1) {
fprintf(stderr, "ERROR");
exit(1);
}
current_id->match_id.bInterfaceProtocol = num;
};
%%