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 <test/test.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_PRE_PROBE,
  48         DM_TEST_OP_POST_PROBE,
  49         DM_TEST_OP_PRE_REMOVE,
  50         DM_TEST_OP_INIT,
  51         DM_TEST_OP_DESTROY,
  52
  53         DM_TEST_OP_COUNT,
  54 };
  55
  56 /* Test driver types */
  57 enum {
  58         DM_TEST_TYPE_FIRST = 0,
  59         DM_TEST_TYPE_SECOND,
  60 };
  61
  62 /* The number added to the ping total on each probe */
  63 #define DM_TEST_START_TOTAL     5
  64
  65 /**
  66  * struct dm_test_priv - private data for the test devices
  67  */
  68 struct dm_test_priv {
  69         int ping_total;
  70         int op_count[DM_TEST_OP_COUNT];
  71         int uclass_flag;
  72         int uclass_total;
  73 };
  74
  75 /**
  76  * struct dm_test_perdev_class_priv - private per-device data for test uclass
  77  */
  78 struct dm_test_uclass_perdev_priv {
  79         int base_add;
  80 };
  81
  82 /**
  83  * struct dm_test_uclass_priv - private data for test uclass
  84  */
  85 struct dm_test_uclass_priv {
  86         int total_add;
  87 };
  88
  89 /**
  90  * struct dm_test_parent_data - parent's information on each child
  91  *
  92  * @sum: Test value used to check parent data works correctly
  93  * @flag: Used to track calling of parent operations
  94  * @uclass_flag: Used to track calling of parent operations by uclass
  95  */
  96 struct dm_test_parent_data {
  97         int sum;
  98         int flag;
  99 };
 100
 101 /* Test values for test device's uclass platform data */
 102 enum {
 103         TEST_UC_PDATA_INTVAL1 = 2,
 104         TEST_UC_PDATA_INTVAL2 = 334,
 105         TEST_UC_PDATA_INTVAL3 = 789452,
 106 };
 107
 108 /**
 109  * struct dm_test_uclass_platda - uclass's information on each device
 110  *
 111  * @intval1: set to TEST_UC_PDATA_INTVAL1 in .post_bind method of test uclass
 112  * @intval2: set to TEST_UC_PDATA_INTVAL2 in .post_bind method of test uclass
 113  * @intval3: set to TEST_UC_PDATA_INTVAL3 in .post_bind method of test uclass
 114  */
 115 struct dm_test_perdev_uc_pdata {
 116         int intval1;
 117         int intval2;
 118         int intval3;
 119 };
 120
 121 /*
 122  * Operation counts for the test driver, used to check that each method is
 123  * called correctly
 124  */
 125 extern int dm_testdrv_op_count[DM_TEST_OP_COUNT];
 126
 127 extern struct unit_test_state global_dm_test_state;
 128
 129 /*
 130  * struct dm_test_state - Entire state of dm test system
 131  *
 132  * This is often abreviated to dms.
 133  *
 134  * @root: Root device
 135  * @testdev: Test device
 136  * @force_fail_alloc: Force all memory allocs to fail
 137  * @skip_post_probe: Skip uclass post-probe processing
 138  * @removed: Used to keep track of a device that was removed
 139  */
 140 struct dm_test_state {
 141         struct udevice *root;
 142         struct udevice *testdev;
 143         int force_fail_alloc;
 144         int skip_post_probe;
 145         struct udevice *removed;
 146 };
 147
 148 /* Test flags for each test */
 149 enum {
 150         DM_TESTF_SCAN_PDATA     = 1 << 0,       /* test needs platform data */
 151         DM_TESTF_PROBE_TEST     = 1 << 1,       /* probe test uclass */
 152         DM_TESTF_SCAN_FDT       = 1 << 2,       /* scan device tree */
 153         DM_TESTF_FLAT_TREE      = 1 << 3,       /* test needs flat DT */
 154         DM_TESTF_LIVE_TREE      = 1 << 4,       /* needs live device tree */
 155 };
 156
 157 /* Declare a new driver model test */
 158 #define DM_TEST(_name, _flags)  UNIT_TEST(_name, _flags, dm_test)
 159
 160 /* This platform data is needed in tests, so declare it here */
 161 struct sandbox_sdl_plat {
 162         int xres;
 163         int yres;
 164         int bpix;
 165         int rot;
 166         const char *vidconsole_drv_name;
 167         int font_size;
 168 };
 169
 170 /* Declare ping methods for the drivers */
 171 int test_ping(struct udevice *dev, int pingval, int *pingret);
 172 int testfdt_ping(struct udevice *dev, int pingval, int *pingret);
 173
 174 /**
 175  * dm_check_operations() - Check that we can perform ping operations
 176  *
 177  * This checks that the ping operations work as expected for a device
 178  *
 179  * @dms: Overall test state
 180  * @dev: Device to test
 181  * @base: Base address, used to check ping return value
 182  * @priv: Pointer to private test information
 183  * @return 0 if OK, -ve on error
 184  */
 185 int dm_check_operations(struct unit_test_state *uts, struct udevice *dev,
 186                         uint32_t base, struct dm_test_priv *priv);
 187
 188 /**
 189  * dm_check_devices() - check the devices respond to operations correctly
 190  *
 191  * @dms: Overall test state
 192  * @num_devices: Number of test devices to check
 193  * @return 0 if OK, -ve on error
 194  */
 195 int dm_check_devices(struct unit_test_state *uts, int num_devices);
 196
 197 /**
 198  * dm_leak_check_start() - Prepare to check for a memory leak
 199  *
 200  * Call this before allocating memory to record the amount of memory being
 201  * used.
 202  *
 203  * @dms: Overall test state
 204  */
 205 void dm_leak_check_start(struct unit_test_state *uts);
 206
 207 /**
 208  * dm_leak_check_end() - Check that no memory has leaked
 209  *
 210  * Call this after dm_leak_check_start() and after you have hopefuilly freed
 211  * all the memory that was allocated. This function will print an error if
 212  * it sees a different amount of total memory allocated than before.
 213  *
 214  * @dms: Overall test state
 215  */int dm_leak_check_end(struct unit_test_state *uts);
 216
 217 #endif