static int omap_rproc_ioctl(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
{
int rc = 0;
struct omap_rproc *rproc = filp->private_data;
if (!rproc)
return -EINVAL;
if (_IOC_TYPE(cmd) != RPROC_IOC_MAGIC)
return -ENOTTY;
if (_IOC_NR(cmd) > RPROC_IOC_MAXNR)
return -ENOTTY;
if (_IOC_DIR(cmd) & _IOC_READ) {
if (!access_ok(VERIFY_WRITE, (void __user *)arg,
_IOC_SIZE(cmd)))
return -EFAULT;
} else if (_IOC_DIR(cmd) & _IOC_WRITE) {
if (!access_ok(VERIFY_READ, (void __user *)arg,
_IOC_SIZE(cmd)))
return -EFAULT;
}
switch (cmd) {
case RPROC_IOCSTART:
/*FIXME: re-visit this check to perform
proper permission checks */
/*if (!capable(CAP_SYS_ADMIN))
return -EPERM;*/
rc = rproc_start(rproc, (const void __user *) arg);
break;
case RPROC_IOCSTOP:
/*FIXME: re-visit this check to perform
proper permission checks */
/*if (!capable(CAP_SYS_ADMIN))
return -EPERM;*/
rc = rproc_stop(rproc);
break;
case RPROC_IOCGETSTATE:
rc = rproc_get_state(rproc);
break;
default:
return -ENOTTY;
}
return rc;
}
/**
* do_remoteproc_wrapper() - wrapper for various rproc commands
* @cmdtp: unused
* @flag: unused
* @argc: argument count for the rproc command
* @argv: arguments for the rproc command
*
* Most of the commands just take id as a parameter andinvoke various
* helper routines in remote processor core. by using a set of
* common checks, we can reduce the amount of code used for this.
*
* Return: 0 if no error, else returns appropriate error value.
*/
static int do_remoteproc_wrapper(cmd_tbl_t *cmdtp, int flag, int argc,
char *const argv[])
{
int id, ret = CMD_RET_USAGE;
if (argc != 2)
return CMD_RET_USAGE;
id = (int)simple_strtoul(argv[1], NULL, 3);
if (!rproc_is_initialized()) {
printf("\tRemote Processors are not initialized\n");
return CMD_RET_USAGE;
}
if (!strcmp(argv[0], "start")) {
ret = rproc_start(id);
} else if (!strcmp(argv[0], "stop")) {
ret = rproc_stop(id);
} else if (!strcmp(argv[0], "reset")) {
ret = rproc_reset(id);
} else if (!strcmp(argv[0], "is_running")) {
ret = rproc_is_running(id);
if (!ret) {
printf("Remote processor is Running\n");
} else if (ret == 1) {
printf("Remote processor is NOT Running\n");
ret = 0;
}
/* Else error.. */
} else if (!strcmp(argv[0], "ping")) {
ret = rproc_ping(id);
if (!ret) {
printf("Remote processor responds 'Pong'\n");
} else if (ret == 1) {
printf("No response from Remote processor\n");
ret = 0;
}
/* Else error.. */
}
if (ret < 0)
printf("Operation Failed with error (%d)\n", ret);
return ret ? CMD_RET_FAILURE : 0;
}
/**
* dm_test_remoteproc_base() - test the operations after initializations
* @uts: unit test state
*
* Return: 0 if test passed, else error
*/
static int dm_test_remoteproc_base(struct unit_test_state *uts)
{
if (!rproc_is_initialized())
ut_assertok(rproc_init());
/* Ensure we are initialized */
ut_asserteq(true, rproc_is_initialized());
/* platform data device 1 */
ut_assertok(rproc_stop(0));
ut_assertok(rproc_reset(0));
/* -> invalid attempt tests */
ut_asserteq(-EINVAL, rproc_start(0));
ut_asserteq(-EINVAL, rproc_ping(0));
/* Valid tests */
ut_assertok(rproc_load(0, 1, 0));
ut_assertok(rproc_start(0));
ut_assertok(rproc_is_running(0));
ut_assertok(rproc_ping(0));
ut_assertok(rproc_reset(0));
ut_assertok(rproc_stop(0));
/* dt device device 1 */
ut_assertok(rproc_stop(1));
ut_assertok(rproc_reset(1));
ut_assertok(rproc_load(1, 1, 0));
ut_assertok(rproc_start(1));
ut_assertok(rproc_is_running(1));
ut_assertok(rproc_ping(1));
ut_assertok(rproc_reset(1));
ut_assertok(rproc_stop(1));
/* dt device device 2 */
ut_assertok(rproc_stop(0));
ut_assertok(rproc_reset(0));
/* -> invalid attempt tests */
ut_asserteq(-EINVAL, rproc_start(0));
ut_asserteq(-EINVAL, rproc_ping(0));
/* Valid tests */
ut_assertok(rproc_load(2, 1, 0));
ut_assertok(rproc_start(2));
ut_assertok(rproc_is_running(2));
ut_assertok(rproc_ping(2));
ut_assertok(rproc_reset(2));
ut_assertok(rproc_stop(2));
return 0;
}
