void test_execute_Inquiry(char* path, int evpd, int page_code) {
struct sg_io_hdr* p_hdr = init_io_hdr();
set_xfer_data(p_hdr, data_buffer, BLOCK_LEN * 256);
set_sense_data(p_hdr, sense_buffer, SENSE_LEN);
int status = 0;
int fd = open(path, O_RDWR);
if (fd > 0) {
status = execute_Inquiry(fd, page_code, evpd, p_hdr);
printf("the return status is %d\n", status);
if (status != 0) {
show_sense_buffer(p_hdr);
} else {
show_vendor(p_hdr);
show_product(p_hdr);
show_product_rev(p_hdr);
}
} else {
printf("failed to open sg file %s\n", path);
}
close(fd);
destroy_io_hdr(p_hdr);
}
void show_serial_number(struct sg_io_hdr *hdr)
{
unsigned char *buffer = hdr->dxferp;
int i;
printf("serial number: ");
for (i=0x80,
}
#endif
#define SENSE_LEN 32
#define BLOCK_LEN 1
unsigned char sense_buffer[SENSE_LEN];
unsigned char data_buffer[BLOCK_LEN*256];
void test_execute_Inquiry(char * path, int evpd, int page_code)
{
struct sg_io_hdr * p_hdr = init_io_hdr();
set_xfer_data(p_hdr, data_buffer, BLOCK_LEN*256);
set_sense_data(p_hdr, sense_buffer, SENSE_LEN);
int status = 0;
int fd = open(path, O_RDWR);
if (fd>0) {
status = execute_Inquiry(fd, page_code, evpd, p_hdr);
printf("the return status is %d\n", status);
if (status!=0) {
show_sense_buffer(p_hdr);
} else{
show_vendor(p_hdr);
show_product(p_hdr);
show_product_rev(p_hdr);
show_xfer_data(p_hdr);
}
} else {
printf("failed to open sg file %s\n", path);
}
close(fd);
destroy_io_hdr(p_hdr);
}
void test_cmds(char *path, int evpd, int page_code)
{
struct sg_io_hdr * p_hdr = init_io_hdr();
set_xfer_data(p_hdr, data_buffer, BLOCK_LEN*256);
set_sense_data(p_hdr, sense_buffer, SENSE_LEN);
int status = 0;
int fd = open(path, O_RDWR);
if (fd>0) {
status = execute_Inquiry(fd, page_code, evpd, p_hdr);
printf("the return status is %d\n", status);
//show_sense_buffer(p_hdr);
show_xfer_data(p_hdr);
} else {
printf("failed to open sg file %s\n", path);
}
close(fd);
destroy_io_hdr(p_hdr);
}
void get_rpm(char *path, int evpd, int page_code)
{
struct sg_io_hdr * p_hdr = init_io_hdr();
set_xfer_data(p_hdr, data_buffer, BLOCK_LEN*256);
set_sense_data(p_hdr, sense_buffer, SENSE_LEN);
int status = 0;
unsigned char *xfer;
int pdt, rpm;
int fd = open(path, O_RDWR);
if (fd>0) {
status = execute_Inquiry(fd, page_code, evpd, p_hdr);
printf("the return status is %d\n", status);
//show_sense_buffer(p_hdr);
//show_xfer_data(p_hdr);
// 参考代码 sg3_utils: sg_vpd.c : decode_b1_vpd()
xfer = p_hdr->dxferp;
pdt = (int)xfer[0];
switch (pdt)
{
case 0:
if (p_hdr->dxfer_len < 64)
{
printf("xfer is too short!\n");
}
else
{
rpm = (xfer[4]<<8) | xfer[5];
printf("rpm of %s: %d rpm\n", path, rpm);
}
break;
default:
printf("unknown pdt\n");
break;
}
} else {
printf("failed to open sg file %s\n", path);
}
close(fd);
destroy_io_hdr(p_hdr);
}
int main(int argc, char * argv[])
{
//test_execute_Inquiry(argv[1], 0, 0);
//test_cmds(argv[1], 1, 0x86);
get_rpm(argv[1], 1, 0xb1); // rpm
// tested:
// 0x80,0x83
return 0;
}