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 #include <malloc.h>
  12
  13 /**
  14  * struct dm_test_cdata - configuration data for test instance
  15  *
  16  * @ping_add: Amonut to add each time we get a ping
  17  * @base: Base address of this device
  18  */
  19 struct dm_test_pdata {
  20         int ping_add;
  21         uint32_t base;
  22 };
  23
  24 /**
  25  * struct test_ops - Operations supported by the test device
  26  *
  27  * @ping: Ping operation
  28  *      @dev: Device to operate on
  29  *      @pingval: Value to ping the device with
  30  *      @pingret: Returns resulting value from driver
  31  *      @return 0 if OK, -ve on error
  32  */
  33 struct test_ops {
  34         int (*ping)(struct udevice *dev, int pingval, int *pingret);
  35 };
  36
  37 /* Operations that our test driver supports */
  38 enum {
  39         DM_TEST_OP_BIND = 0,
  40         DM_TEST_OP_UNBIND,
  41         DM_TEST_OP_PROBE,
  42         DM_TEST_OP_REMOVE,
  43
  44         /* For uclass */
  45         DM_TEST_OP_POST_BIND,
  46         DM_TEST_OP_PRE_UNBIND,
  47         DM_TEST_OP_POST_PROBE,
  48         DM_TEST_OP_PRE_REMOVE,
  49         DM_TEST_OP_INIT,
  50         DM_TEST_OP_DESTROY,
  51
  52         DM_TEST_OP_COUNT,
  53 };
  54
  55 /* Test driver types */
  56 enum {
  57         DM_TEST_TYPE_FIRST = 0,
  58         DM_TEST_TYPE_SECOND,
  59 };
  60
  61 /* The number added to the ping total on each probe */
  62 #define DM_TEST_START_TOTAL     5
  63
  64 /**
  65  * struct dm_test_priv - private data for the test devices
  66  */
  67 struct dm_test_priv {
  68         int ping_total;
  69         int op_count[DM_TEST_OP_COUNT];
  70 };
  71
  72 /**
  73  * struct dm_test_perdev_class_priv - private per-device data for test uclass
  74  */
  75 struct dm_test_uclass_perdev_priv {
  76         int base_add;
  77 };
  78
  79 /**
  80  * struct dm_test_uclass_priv - private data for test uclass
  81  */
  82 struct dm_test_uclass_priv {
  83         int total_add;
  84 };
  85
  86 /**
  87  * struct dm_test_parent_data - parent's information on each child
  88  *
  89  * @sum: Test value used to check parent data works correctly
  90  * @flag: Used to track calling of parent operations
  91  */
  92 struct dm_test_parent_data {
  93         int sum;
  94         int flag;
  95 };
  96
  97 /*
  98  * Operation counts for the test driver, used to check that each method is
  99  * called correctly
 100  */
 101 extern int dm_testdrv_op_count[DM_TEST_OP_COUNT];
 102
 103 extern struct dm_test_state global_test_state;
 104
 105 /*
 106  * struct dm_test_state - Entire state of dm test system
 107  *
 108  * This is often abreviated to dms.
 109  *
 110  * @root: Root device
 111  * @testdev: Test device
 112  * @fail_count: Number of tests that failed
 113  * @force_fail_alloc: Force all memory allocs to fail
 114  * @skip_post_probe: Skip uclass post-probe processing
 115  * @removed: Used to keep track of a device that was removed
 116  */
 117 struct dm_test_state {
 118         struct udevice *root;
 119         struct udevice *testdev;
 120         int fail_count;
 121         int force_fail_alloc;
 122         int skip_post_probe;
 123         struct udevice *removed;
 124         struct mallinfo start;
 125 };
 126
 127 /* Test flags for each test */
 128 enum {
 129         DM_TESTF_SCAN_PDATA     = 1 << 0,       /* test needs platform data */
 130         DM_TESTF_PROBE_TEST     = 1 << 1,       /* probe test uclass */
 131         DM_TESTF_SCAN_FDT       = 1 << 2,       /* scan device tree */
 132 };
 133
 134 /**
 135  * struct dm_test - Information about a driver model test
 136  *
 137  * @name: Name of test
 138  * @func: Function to call to perform test
 139  * @flags: Flags indicated pre-conditions for test
 140  */
 141 struct dm_test {
 142         const char *name;
 143         int (*func)(struct dm_test_state *dms);
 144         int flags;
 145 };
 146
 147 /* Declare a new driver model test */
 148 #define DM_TEST(_name, _flags)                                          \
 149         ll_entry_declare(struct dm_test, _name, dm_test) = {            \
 150                 .name = #_name,                                         \
 151                 .flags = _flags,                                        \
 152                 .func = _name,                                          \
 153         }
 154
 155 /* Declare ping methods for the drivers */
 156 int test_ping(struct udevice *dev, int pingval, int *pingret);
 157 int testfdt_ping(struct udevice *dev, int pingval, int *pingret);
 158
 159 /**
 160  * dm_check_operations() - Check that we can perform ping operations
 161  *
 162  * This checks that the ping operations work as expected for a device
 163  *
 164  * @dms: Overall test state
 165  * @dev: Device to test
 166  * @base: Base address, used to check ping return value
 167  * @priv: Pointer to private test information
 168  * @return 0 if OK, -ve on error
 169  */
 170 int dm_check_operations(struct dm_test_state *dms, struct udevice *dev,
 171                         uint32_t base, struct dm_test_priv *priv);
 172
 173 /**
 174  * dm_check_devices() - check the devices respond to operations correctly
 175  *
 176  * @dms: Overall test state
 177  * @num_devices: Number of test devices to check
 178  * @return 0 if OK, -ve on error
 179  */
 180 int dm_check_devices(struct dm_test_state *dms, int num_devices);
 181
 182 /**
 183  * dm_leak_check_start() - Prepare to check for a memory leak
 184  *
 185  * Call this before allocating memory to record the amount of memory being
 186  * used.
 187  *
 188  * @dms: Overall test state
 189  */
 190 void dm_leak_check_start(struct dm_test_state *dms);
 191
 192 /**
 193  * dm_leak_check_end() - Check that no memory has leaked
 194  *
 195  * Call this after dm_leak_check_start() and after you have hopefuilly freed
 196  * all the memory that was allocated. This function will print an error if
 197  * it sees a different amount of total memory allocated than before.
 198  *
 199  * @dms: Overall test state
 200  */int dm_leak_check_end(struct dm_test_state *dms);
 201
 202
 203 /**
 204  * dm_test_main() - Run all the tests
 205  *
 206  * This runs all available driver model tests
 207  *
 208  * @return 0 if OK, -ve on error
 209  */
 210 int dm_test_main(void);
 211
 212 #endif