diff options
| author | Simon Glass <sjg@chromium.org> | 2020-07-07 13:11:46 -0600 |
|---|---|---|
| committer | Bin Meng <bmeng.cn@gmail.com> | 2020-07-17 14:32:24 +0800 |
| commit | a9e0a077df5509c3d4b49e745c746c38a4f9a7a1 (patch) | |
| tree | 0a1d0d7b22275a0bd7bae704fadcf16a3133e81a /test/dm | |
| parent | 7fb8da4ce1b22c8f077e6d4fe6e0d88e3fd9206d (diff) | |
acpi: Support generation of GPIO descriptor
Add a function to write a GPIO descriptor to the generated ACPI code.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: Drop comment about the type always being ACPI_GPIO_TYPE_IO]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'test/dm')
| -rw-r--r-- | test/dm/acpigen.c | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/test/dm/acpigen.c b/test/dm/acpigen.c index 26d1b76db4..d15273d6bf 100644 --- a/test/dm/acpigen.c +++ b/test/dm/acpigen.c @@ -12,6 +12,7 @@ #include <malloc.h> #include <acpi/acpigen.h> #include <acpi/acpi_device.h> +#include <asm/gpio.h> #include <asm/unaligned.h> #include <dm/acpi.h> #include <dm/test.h> @@ -144,3 +145,93 @@ static int dm_test_acpi_interrupt(struct unit_test_state *uts) return 0; } DM_TEST(dm_test_acpi_interrupt, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT); + +/* Test emitting a GPIO descriptor */ +static int dm_test_acpi_gpio(struct unit_test_state *uts) +{ + struct gpio_desc desc; + struct acpi_ctx *ctx; + struct udevice *dev; + u8 *ptr; + + ut_assertok(alloc_context(&ctx)); + + ptr = acpigen_get_current(ctx); + + ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 0, &dev)); + ut_asserteq_str("a-test", dev->name); + ut_assertok(gpio_request_by_name(dev, "test-gpios", 1, &desc, 0)); + + /* This should write GPIO pin 4 (see device tree test.dts ) */ + ut_asserteq(4, acpi_device_write_gpio_desc(ctx, &desc)); + ut_asserteq(35, acpigen_get_current(ctx) - ptr); + ut_asserteq(ACPI_DESCRIPTOR_GPIO, ptr[0]); + ut_asserteq(32, get_unaligned((u16 *)(ptr + 1))); + ut_asserteq(ACPI_GPIO_REVISION_ID, ptr[3]); + ut_asserteq(ACPI_GPIO_TYPE_IO, ptr[4]); + ut_asserteq(1, get_unaligned((u16 *)(ptr + 5))); + ut_asserteq(9, get_unaligned((u16 *)(ptr + 7))); + ut_asserteq(ACPI_GPIO_PULL_UP, ptr[9]); + ut_asserteq(1234, get_unaligned((u16 *)(ptr + 10))); + ut_asserteq(0, get_unaligned((u16 *)(ptr + 12))); + ut_asserteq(23, get_unaligned((u16 *)(ptr + 14))); + ut_asserteq(0, ptr[16]); + ut_asserteq(25, get_unaligned((u16 *)(ptr + 17))); + ut_asserteq(35, get_unaligned((u16 *)(ptr + 19))); + ut_asserteq(0, get_unaligned((u16 *)(ptr + 21))); + + /* pin0 */ + ut_asserteq(4, get_unaligned((u16 *)(ptr + 23))); + + ut_asserteq_str("\\_SB.PINC", (char *)ptr + 25); + + free_context(&ctx); + + return 0; +} +DM_TEST(dm_test_acpi_gpio, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT); + +/* Test emitting a GPIO descriptor with an interrupt */ +static int dm_test_acpi_gpio_irq(struct unit_test_state *uts) +{ + struct gpio_desc desc; + struct acpi_ctx *ctx; + struct udevice *dev; + u8 *ptr; + + ut_assertok(alloc_context(&ctx)); + + ptr = acpigen_get_current(ctx); + + ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 0, &dev)); + ut_asserteq_str("a-test", dev->name); + ut_assertok(gpio_request_by_name(dev, "test2-gpios", 2, &desc, 0)); + + /* This should write GPIO pin 6 (see device tree test.dts ) */ + ut_asserteq(6, acpi_device_write_gpio_desc(ctx, &desc)); + ut_asserteq(35, acpigen_get_current(ctx) - ptr); + ut_asserteq(ACPI_DESCRIPTOR_GPIO, ptr[0]); + ut_asserteq(32, get_unaligned((u16 *)(ptr + 1))); + ut_asserteq(ACPI_GPIO_REVISION_ID, ptr[3]); + ut_asserteq(ACPI_GPIO_TYPE_INTERRUPT, ptr[4]); + ut_asserteq(1, get_unaligned((u16 *)(ptr + 5))); + ut_asserteq(29, get_unaligned((u16 *)(ptr + 7))); + ut_asserteq(ACPI_GPIO_PULL_DOWN, ptr[9]); + ut_asserteq(0, get_unaligned((u16 *)(ptr + 10))); + ut_asserteq(4321, get_unaligned((u16 *)(ptr + 12))); + ut_asserteq(23, get_unaligned((u16 *)(ptr + 14))); + ut_asserteq(0, ptr[16]); + ut_asserteq(25, get_unaligned((u16 *)(ptr + 17))); + ut_asserteq(35, get_unaligned((u16 *)(ptr + 19))); + ut_asserteq(0, get_unaligned((u16 *)(ptr + 21))); + + /* pin0 */ + ut_asserteq(6, get_unaligned((u16 *)(ptr + 23))); + + ut_asserteq_str("\\_SB.PINC", (char *)ptr + 25); + + free_context(&ctx); + + return 0; +} +DM_TEST(dm_test_acpi_gpio_irq, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT); |