mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-19 03:08:31 +00:00
2e7d35d2a6
Add some tests of driver model functionality. Coverage includes: - basic init - binding of drivers to devices using platform_data - automatic probing of devices when referenced - availability of platform data to devices - lifecycle from bind to probe to remove to unbind - renumbering within a uclass when devices are probed/removed - calling driver-defined operations - deactivation of drivers when removed - memory leak across creation and destruction of drivers/uclasses - uclass init/destroy methods - automatic probe/remove of children/parents when needed This function is enabled for sandbox, using CONFIG_DM_TEST. Signed-off-by: Simon Glass <sjg@chromium.org>
167 lines
3.6 KiB
C
167 lines
3.6 KiB
C
/*
|
|
* Copyright (c) 2013 Google, Inc.
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#ifndef __DM_TEST_H
|
|
#define __DM_TEST_H
|
|
|
|
#include <dm.h>
|
|
|
|
/**
|
|
* struct dm_test_cdata - configuration data for test instance
|
|
*
|
|
* @ping_add: Amonut to add each time we get a ping
|
|
* @base: Base address of this device
|
|
*/
|
|
struct dm_test_pdata {
|
|
int ping_add;
|
|
uint32_t base;
|
|
};
|
|
|
|
/**
|
|
* struct test_ops - Operations supported by the test device
|
|
*
|
|
* @ping: Ping operation
|
|
* @dev: Device to operate on
|
|
* @pingval: Value to ping the device with
|
|
* @pingret: Returns resulting value from driver
|
|
* @return 0 if OK, -ve on error
|
|
*/
|
|
struct test_ops {
|
|
int (*ping)(struct device *dev, int pingval, int *pingret);
|
|
};
|
|
|
|
/* Operations that our test driver supports */
|
|
enum {
|
|
DM_TEST_OP_BIND = 0,
|
|
DM_TEST_OP_UNBIND,
|
|
DM_TEST_OP_PROBE,
|
|
DM_TEST_OP_REMOVE,
|
|
|
|
/* For uclass */
|
|
DM_TEST_OP_POST_BIND,
|
|
DM_TEST_OP_PRE_UNBIND,
|
|
DM_TEST_OP_POST_PROBE,
|
|
DM_TEST_OP_PRE_REMOVE,
|
|
DM_TEST_OP_INIT,
|
|
DM_TEST_OP_DESTROY,
|
|
|
|
DM_TEST_OP_COUNT,
|
|
};
|
|
|
|
/* Test driver types */
|
|
enum {
|
|
DM_TEST_TYPE_FIRST = 0,
|
|
DM_TEST_TYPE_SECOND,
|
|
};
|
|
|
|
/* The number added to the ping total on each probe */
|
|
#define DM_TEST_START_TOTAL 5
|
|
|
|
/**
|
|
* struct dm_test_priv - private data for the test devices
|
|
*/
|
|
struct dm_test_priv {
|
|
int ping_total;
|
|
int op_count[DM_TEST_OP_COUNT];
|
|
};
|
|
|
|
/**
|
|
* struct dm_test_perdev_class_priv - private per-device data for test uclass
|
|
*/
|
|
struct dm_test_uclass_perdev_priv {
|
|
int base_add;
|
|
};
|
|
|
|
/**
|
|
* struct dm_test_uclass_priv - private data for test uclass
|
|
*/
|
|
struct dm_test_uclass_priv {
|
|
int total_add;
|
|
};
|
|
|
|
/*
|
|
* Operation counts for the test driver, used to check that each method is
|
|
* called correctly
|
|
*/
|
|
extern int dm_testdrv_op_count[DM_TEST_OP_COUNT];
|
|
|
|
extern struct dm_test_state global_test_state;
|
|
|
|
/*
|
|
* struct dm_test_state - Entire state of dm test system
|
|
*
|
|
* This is often abreviated to dms.
|
|
*
|
|
* @root: Root device
|
|
* @testdev: Test device
|
|
* @fail_count: Number of tests that failed
|
|
* @force_fail_alloc: Force all memory allocs to fail
|
|
* @skip_post_probe: Skip uclass post-probe processing
|
|
*/
|
|
struct dm_test_state {
|
|
struct device *root;
|
|
struct device *testdev;
|
|
int fail_count;
|
|
int force_fail_alloc;
|
|
int skip_post_probe;
|
|
};
|
|
|
|
/* Test flags for each test */
|
|
enum {
|
|
DM_TESTF_SCAN_PDATA = 1 << 0, /* test needs platform data */
|
|
DM_TESTF_PROBE_TEST = 1 << 1, /* probe test uclass */
|
|
DM_TESTF_SCAN_FDT = 1 << 2, /* scan device tree */
|
|
};
|
|
|
|
/**
|
|
* struct dm_test - Information about a driver model test
|
|
*
|
|
* @name: Name of test
|
|
* @func: Function to call to perform test
|
|
* @flags: Flags indicated pre-conditions for test
|
|
*/
|
|
struct dm_test {
|
|
const char *name;
|
|
int (*func)(struct dm_test_state *dms);
|
|
int flags;
|
|
};
|
|
|
|
/* Declare a new driver model test */
|
|
#define DM_TEST(_name, _flags) \
|
|
ll_entry_declare(struct dm_test, _name, dm_test) = { \
|
|
.name = #_name, \
|
|
.flags = _flags, \
|
|
.func = _name, \
|
|
}
|
|
|
|
/* Declare ping methods for the drivers */
|
|
int test_ping(struct device *dev, int pingval, int *pingret);
|
|
int testfdt_ping(struct device *dev, int pingval, int *pingret);
|
|
|
|
/**
|
|
* dm_check_operations() - Check that we can perform ping operations
|
|
*
|
|
* This checks that the ping operations work as expected for a device
|
|
*
|
|
* @dms: Overall test state
|
|
* @dev: Device to test
|
|
* @base: Base address, used to check ping return value
|
|
* @priv: Pointer to private test information
|
|
* @return 0 if OK, -ve on error
|
|
*/
|
|
int dm_check_operations(struct dm_test_state *dms, struct device *dev,
|
|
uint32_t base, struct dm_test_priv *priv);
|
|
|
|
/**
|
|
* dm_test_main() - Run all the tests
|
|
*
|
|
* This runs all available driver model tests
|
|
*
|
|
* @return 0 if OK, -ve on error
|
|
*/
|
|
int dm_test_main(void);
|
|
|
|
#endif
|