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acpi: Add support for conditions and return values

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Add functions to support generating ACPI code for condition checks and
return values.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2020-09-22 12:44:57 -06:00
committed by Bin Meng
parent e0a896b88f
commit da7cff338f
3 changed files with 252 additions and 0 deletions
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91
test/dm/acpigen.c
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@@ -1127,3 +1127,94 @@ static int dm_test_acpi_write_prw(struct unit_test_state *uts)
return 0;
}
DM_TEST(dm_test_acpi_write_prw, 0);
/* Test emitting writing conditionals */
static int dm_test_acpi_write_cond(struct unit_test_state *uts)
{
struct acpi_ctx *ctx;
u8 *ptr;
ut_assertok(alloc_context(&ctx));
ptr = acpigen_get_current(ctx);
acpigen_write_if(ctx);
acpigen_pop_len(ctx);
ut_asserteq(IF_OP, *ptr++);
ut_asserteq(3, acpi_test_get_length(ptr));
ptr += 3;
acpigen_write_else(ctx);
acpigen_pop_len(ctx);
ut_asserteq(ELSE_OP, *ptr++);
ut_asserteq(3, acpi_test_get_length(ptr));
ptr += 3;
acpigen_write_if_lequal_op_int(ctx, LOCAL1_OP, 5);
acpigen_pop_len(ctx);
ut_asserteq(IF_OP, *ptr++);
ut_asserteq(7, acpi_test_get_length(ptr));
ptr += 3;
ut_asserteq(LEQUAL_OP, *ptr++);
ut_asserteq(LOCAL1_OP, *ptr++);
ut_asserteq(BYTE_PREFIX, *ptr++);
ut_asserteq(5, *ptr++);
ut_asserteq_ptr(ptr, ctx->current);
free_context(&ctx);
return 0;
}
DM_TEST(dm_test_acpi_write_cond, 0);
/* Test emitting writing return values and ToBuffer/ToInteger */
static int dm_test_acpi_write_return(struct unit_test_state *uts)
{
int len = sizeof(TEST_STRING);
struct acpi_ctx *ctx;
u8 *ptr;
ut_assertok(alloc_context(&ctx));
ptr = acpigen_get_current(ctx);
acpigen_write_to_buffer(ctx, ARG0_OP, LOCAL0_OP);
ut_asserteq(TO_BUFFER_OP, *ptr++);
ut_asserteq(ARG0_OP, *ptr++);
ut_asserteq(LOCAL0_OP, *ptr++);
acpigen_write_to_integer(ctx, ARG0_OP, LOCAL0_OP);
ut_asserteq(TO_INTEGER_OP, *ptr++);
ut_asserteq(ARG0_OP, *ptr++);
ut_asserteq(LOCAL0_OP, *ptr++);
acpigen_write_return_byte_buffer(ctx, (u8 *)TEST_STRING, len);
ut_asserteq(RETURN_OP, *ptr++);
ut_asserteq(BUFFER_OP, *ptr++);
ut_asserteq(5 + len, acpi_test_get_length(ptr));
ptr += 3;
ut_asserteq(BYTE_PREFIX, *ptr++);
ut_asserteq(len, *ptr++);
ut_asserteq_mem(TEST_STRING, ptr, len);
ptr += len;
acpigen_write_return_singleton_buffer(ctx, 123);
len = 1;
ut_asserteq(RETURN_OP, *ptr++);
ut_asserteq(BUFFER_OP, *ptr++);
ut_asserteq(4 + len, acpi_test_get_length(ptr));
ptr += 3;
ut_asserteq(ONE_OP, *ptr++);
ut_asserteq(123, *ptr++);
acpigen_write_return_byte(ctx, 43);
ut_asserteq(RETURN_OP, *ptr++);
ut_asserteq(BYTE_PREFIX, *ptr++);
ut_asserteq(43, *ptr++);
ut_asserteq_ptr(ptr, ctx->current);
free_context(&ctx);
return 0;
}
DM_TEST(dm_test_acpi_write_return, 0);