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https://github.com/AsahiLinux/u-boot
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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
/*
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* Copyright (c) 2013 Google, Inc.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef __DM_TEST_H
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#define __DM_TEST_H
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#include <dm.h>
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/**
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* struct dm_test_cdata - configuration data for test instance
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*
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* @ping_add: Amonut to add each time we get a ping
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* @base: Base address of this device
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*/
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struct dm_test_pdata {
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int ping_add;
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uint32_t base;
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};
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/**
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* struct test_ops - Operations supported by the test device
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*
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* @ping: Ping operation
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* @dev: Device to operate on
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* @pingval: Value to ping the device with
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* @pingret: Returns resulting value from driver
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* @return 0 if OK, -ve on error
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*/
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struct test_ops {
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int (*ping)(struct device *dev, int pingval, int *pingret);
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};
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/* Operations that our test driver supports */
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enum {
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DM_TEST_OP_BIND = 0,
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DM_TEST_OP_UNBIND,
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DM_TEST_OP_PROBE,
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DM_TEST_OP_REMOVE,
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/* For uclass */
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DM_TEST_OP_POST_BIND,
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DM_TEST_OP_PRE_UNBIND,
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DM_TEST_OP_POST_PROBE,
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DM_TEST_OP_PRE_REMOVE,
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DM_TEST_OP_INIT,
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DM_TEST_OP_DESTROY,
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DM_TEST_OP_COUNT,
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};
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/* Test driver types */
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enum {
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DM_TEST_TYPE_FIRST = 0,
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DM_TEST_TYPE_SECOND,
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};
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/* The number added to the ping total on each probe */
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#define DM_TEST_START_TOTAL 5
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/**
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* struct dm_test_priv - private data for the test devices
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*/
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struct dm_test_priv {
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int ping_total;
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int op_count[DM_TEST_OP_COUNT];
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};
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/**
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* struct dm_test_perdev_class_priv - private per-device data for test uclass
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*/
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struct dm_test_uclass_perdev_priv {
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int base_add;
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};
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/**
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* struct dm_test_uclass_priv - private data for test uclass
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*/
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struct dm_test_uclass_priv {
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int total_add;
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};
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/*
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* Operation counts for the test driver, used to check that each method is
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* called correctly
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*/
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extern int dm_testdrv_op_count[DM_TEST_OP_COUNT];
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extern struct dm_test_state global_test_state;
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/*
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* struct dm_test_state - Entire state of dm test system
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*
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* This is often abreviated to dms.
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*
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* @root: Root device
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* @testdev: Test device
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* @fail_count: Number of tests that failed
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* @force_fail_alloc: Force all memory allocs to fail
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* @skip_post_probe: Skip uclass post-probe processing
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*/
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struct dm_test_state {
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struct device *root;
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struct device *testdev;
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int fail_count;
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int force_fail_alloc;
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int skip_post_probe;
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};
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/* Test flags for each test */
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enum {
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DM_TESTF_SCAN_PDATA = 1 << 0, /* test needs platform data */
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DM_TESTF_PROBE_TEST = 1 << 1, /* probe test uclass */
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DM_TESTF_SCAN_FDT = 1 << 2, /* scan device tree */
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};
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/**
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* struct dm_test - Information about a driver model test
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*
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* @name: Name of test
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* @func: Function to call to perform test
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* @flags: Flags indicated pre-conditions for test
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*/
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struct dm_test {
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const char *name;
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int (*func)(struct dm_test_state *dms);
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int flags;
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};
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/* Declare a new driver model test */
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#define DM_TEST(_name, _flags) \
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ll_entry_declare(struct dm_test, _name, dm_test) = { \
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.name = #_name, \
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.flags = _flags, \
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.func = _name, \
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}
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/* Declare ping methods for the drivers */
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int test_ping(struct device *dev, int pingval, int *pingret);
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int testfdt_ping(struct device *dev, int pingval, int *pingret);
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/**
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* dm_check_operations() - Check that we can perform ping operations
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*
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* This checks that the ping operations work as expected for a device
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*
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* @dms: Overall test state
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* @dev: Device to test
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* @base: Base address, used to check ping return value
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* @priv: Pointer to private test information
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* @return 0 if OK, -ve on error
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*/
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int dm_check_operations(struct dm_test_state *dms, struct device *dev,
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uint32_t base, struct dm_test_priv *priv);
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/**
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* dm_test_main() - Run all the tests
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*
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* This runs all available driver model tests
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*
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* @return 0 if OK, -ve on error
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*/
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int dm_test_main(void);
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#endif
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