include/dm/test.h

   1 /*
   2  * Copyright (c) 2013 Google, Inc.
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6
   7 #ifndef __DM_TEST_H
   8 #define __DM_TEST_H
   9
  10 #include <dm.h>
  11
  12 /**
  13  * struct dm_test_cdata - configuration data for test instance
  14  *
  15  * @ping_add: Amonut to add each time we get a ping
  16  * @base: Base address of this device
  17  */
  18 struct dm_test_pdata {
  19         int ping_add;
  20         uint32_t base;
  21 };
  22
  23 /**
  24  * struct test_ops - Operations supported by the test device
  25  *
  26  * @ping: Ping operation
  27  *      @dev: Device to operate on
  28  *      @pingval: Value to ping the device with
  29  *      @pingret: Returns resulting value from driver
  30  *      @return 0 if OK, -ve on error
  31  */
  32 struct test_ops {
  33         int (*ping)(struct udevice *dev, int pingval, int *pingret);
  34 };
  35
  36 /* Operations that our test driver supports */
  37 enum {
  38         DM_TEST_OP_BIND = 0,
  39         DM_TEST_OP_UNBIND,
  40         DM_TEST_OP_PROBE,
  41         DM_TEST_OP_REMOVE,
  42
  43         /* For uclass */
  44         DM_TEST_OP_POST_BIND,
  45         DM_TEST_OP_PRE_UNBIND,
  46         DM_TEST_OP_POST_PROBE,
  47         DM_TEST_OP_PRE_REMOVE,
  48         DM_TEST_OP_INIT,
  49         DM_TEST_OP_DESTROY,
  50
  51         DM_TEST_OP_COUNT,
  52 };
  53
  54 /* Test driver types */
  55 enum {
  56         DM_TEST_TYPE_FIRST = 0,
  57         DM_TEST_TYPE_SECOND,
  58 };
  59
  60 /* The number added to the ping total on each probe */
  61 #define DM_TEST_START_TOTAL     5
  62
  63 /**
  64  * struct dm_test_priv - private data for the test devices
  65  */
  66 struct dm_test_priv {
  67         int ping_total;
  68         int op_count[DM_TEST_OP_COUNT];
  69 };
  70
  71 /**
  72  * struct dm_test_perdev_class_priv - private per-device data for test uclass
  73  */
  74 struct dm_test_uclass_perdev_priv {
  75         int base_add;
  76 };
  77
  78 /**
  79  * struct dm_test_uclass_priv - private data for test uclass
  80  */
  81 struct dm_test_uclass_priv {
  82         int total_add;
  83 };
  84
  85 /*
  86  * Operation counts for the test driver, used to check that each method is
  87  * called correctly
  88  */
  89 extern int dm_testdrv_op_count[DM_TEST_OP_COUNT];
  90
  91 extern struct dm_test_state global_test_state;
  92
  93 /*
  94  * struct dm_test_state - Entire state of dm test system
  95  *
  96  * This is often abreviated to dms.
  97  *
  98  * @root: Root device
  99  * @testdev: Test device
 100  * @fail_count: Number of tests that failed
 101  * @force_fail_alloc: Force all memory allocs to fail
 102  * @skip_post_probe: Skip uclass post-probe processing
 103  */
 104 struct dm_test_state {
 105         struct udevice *root;
 106         struct udevice *testdev;
 107         int fail_count;
 108         int force_fail_alloc;
 109         int skip_post_probe;
 110 };
 111
 112 /* Test flags for each test */
 113 enum {
 114         DM_TESTF_SCAN_PDATA     = 1 << 0,       /* test needs platform data */
 115         DM_TESTF_PROBE_TEST     = 1 << 1,       /* probe test uclass */
 116         DM_TESTF_SCAN_FDT       = 1 << 2,       /* scan device tree */
 117 };
 118
 119 /**
 120  * struct dm_test - Information about a driver model test
 121  *
 122  * @name: Name of test
 123  * @func: Function to call to perform test
 124  * @flags: Flags indicated pre-conditions for test
 125  */
 126 struct dm_test {
 127         const char *name;
 128         int (*func)(struct dm_test_state *dms);
 129         int flags;
 130 };
 131
 132 /* Declare a new driver model test */
 133 #define DM_TEST(_name, _flags)                                          \
 134         ll_entry_declare(struct dm_test, _name, dm_test) = {            \
 135                 .name = #_name,                                         \
 136                 .flags = _flags,                                        \
 137                 .func = _name,                                          \
 138         }
 139
 140 /* Declare ping methods for the drivers */
 141 int test_ping(struct udevice *dev, int pingval, int *pingret);
 142 int testfdt_ping(struct udevice *dev, int pingval, int *pingret);
 143
 144 /**
 145  * dm_check_operations() - Check that we can perform ping operations
 146  *
 147  * This checks that the ping operations work as expected for a device
 148  *
 149  * @dms: Overall test state
 150  * @dev: Device to test
 151  * @base: Base address, used to check ping return value
 152  * @priv: Pointer to private test information
 153  * @return 0 if OK, -ve on error
 154  */
 155 int dm_check_operations(struct dm_test_state *dms, struct udevice *dev,
 156                         uint32_t base, struct dm_test_priv *priv);
 157
 158 /**
 159  * dm_check_devices() - check the devices respond to operations correctly
 160  *
 161  * @dms: Overall test state
 162  * @num_devices: Number of test devices to check
 163  * @return 0 if OK, -ve on error
 164  */
 165 int dm_check_devices(struct dm_test_state *dms, int num_devices);
 166
 167 /**
 168  * dm_test_main() - Run all the tests
 169  *
 170  * This runs all available driver model tests
 171  *
 172  * @return 0 if OK, -ve on error
 173  */
 174 int dm_test_main(void);
 175
 176 #endif