diff --git a/arch/sandbox/dts/test.dts b/arch/sandbox/dts/test.dts index 8e7eaf2d15..d85bb46ceb 100644 --- a/arch/sandbox/dts/test.dts +++ b/arch/sandbox/dts/test.dts @@ -139,6 +139,12 @@ size = <0x10000>; }; }; + + cros_ec_pwm: cros-ec-pwm { + compatible = "google,cros-ec-pwm"; + #pwm-cells = <1>; + }; + }; dsi_host: dsi_host { diff --git a/arch/sandbox/include/asm/test.h b/arch/sandbox/include/asm/test.h index 1cb960ac24..dab1a4ea01 100644 --- a/arch/sandbox/include/asm/test.h +++ b/arch/sandbox/include/asm/test.h @@ -275,4 +275,14 @@ void sandbox_set_enable_memio(bool enable); */ void sandbox_cros_ec_set_test_flags(struct udevice *dev, uint flags); +/** + * sandbox_cros_ec_get_pwm_duty() - Get EC PWM config for testing purposes + * + * @dev: Device to check + * @index: PWM channel index + * @duty: Current duty cycle in 0..EC_PWM_MAX_DUTY range. + * @return 0 if OK, -ENOSPC if the PWM number is invalid + */ +int sandbox_cros_ec_get_pwm_duty(struct udevice *dev, uint index, uint *duty); + #endif diff --git a/configs/sandbox64_defconfig b/configs/sandbox64_defconfig index a8bb560724..674b660391 100644 --- a/configs/sandbox64_defconfig +++ b/configs/sandbox64_defconfig @@ -188,6 +188,7 @@ CONFIG_REGULATOR_S5M8767=y CONFIG_DM_REGULATOR_SANDBOX=y CONFIG_REGULATOR_TPS65090=y CONFIG_DM_PWM=y +CONFIG_PWM_CROS_EC=y CONFIG_PWM_SANDBOX=y CONFIG_RAM=y CONFIG_REMOTEPROC_SANDBOX=y diff --git a/configs/sandbox_defconfig b/configs/sandbox_defconfig index f16e2d5d23..df14506b09 100644 --- a/configs/sandbox_defconfig +++ b/configs/sandbox_defconfig @@ -226,6 +226,7 @@ CONFIG_DM_REGULATOR_SANDBOX=y CONFIG_REGULATOR_TPS65090=y CONFIG_DM_REGULATOR_SCMI=y CONFIG_DM_PWM=y +CONFIG_PWM_CROS_EC=y CONFIG_PWM_SANDBOX=y CONFIG_RAM=y CONFIG_REMOTEPROC_SANDBOX=y diff --git a/configs/sandbox_flattree_defconfig b/configs/sandbox_flattree_defconfig index 1c39a545c8..aaa6720cf9 100644 --- a/configs/sandbox_flattree_defconfig +++ b/configs/sandbox_flattree_defconfig @@ -165,6 +165,7 @@ CONFIG_REGULATOR_S5M8767=y CONFIG_DM_REGULATOR_SANDBOX=y CONFIG_REGULATOR_TPS65090=y CONFIG_DM_PWM=y +CONFIG_PWM_CROS_EC=y CONFIG_PWM_SANDBOX=y CONFIG_RAM=y CONFIG_REMOTEPROC_SANDBOX=y diff --git a/configs/sandbox_noinst_defconfig b/configs/sandbox_noinst_defconfig index 9f415cd875..3dc3a36154 100644 --- a/configs/sandbox_noinst_defconfig +++ b/configs/sandbox_noinst_defconfig @@ -181,6 +181,7 @@ CONFIG_REGULATOR_S5M8767=y CONFIG_DM_REGULATOR_SANDBOX=y CONFIG_REGULATOR_TPS65090=y CONFIG_DM_PWM=y +CONFIG_PWM_CROS_EC=y CONFIG_PWM_SANDBOX=y CONFIG_RAM=y CONFIG_REMOTEPROC_SANDBOX=y diff --git a/configs/sandbox_spl_defconfig b/configs/sandbox_spl_defconfig index 8bc1373ec3..c7d15de939 100644 --- a/configs/sandbox_spl_defconfig +++ b/configs/sandbox_spl_defconfig @@ -183,6 +183,7 @@ CONFIG_REGULATOR_S5M8767=y CONFIG_DM_REGULATOR_SANDBOX=y CONFIG_REGULATOR_TPS65090=y CONFIG_DM_PWM=y +CONFIG_PWM_CROS_EC=y CONFIG_PWM_SANDBOX=y CONFIG_RAM=y CONFIG_REMOTEPROC_SANDBOX=y diff --git a/drivers/misc/cros_ec_sandbox.c b/drivers/misc/cros_ec_sandbox.c index bc01df0904..db5e3b0f51 100644 --- a/drivers/misc/cros_ec_sandbox.c +++ b/drivers/misc/cros_ec_sandbox.c @@ -64,6 +64,7 @@ struct ec_keymatrix_entry { enum { VSTORE_SLOT_COUNT = 4, + PWM_CHANNEL_COUNT = 4, }; struct vstore_slot { @@ -71,6 +72,10 @@ struct vstore_slot { u8 data[EC_VSTORE_SLOT_SIZE]; }; +struct ec_pwm_channel { + uint duty; /* not ns, EC_PWM_MAX_DUTY = 100% */ +}; + /** * struct ec_state - Information about the EC state * @@ -85,6 +90,7 @@ struct vstore_slot { * @recovery_req: Keyboard recovery requested * @test_flags: Flags that control behaviour for tests * @slot_locked: Locked vstore slots (mask) + * @pwm: Information per PWM channel */ struct ec_state { u8 vbnv_context[EC_VBNV_BLOCK_SIZE_V2]; @@ -98,6 +104,7 @@ struct ec_state { bool recovery_req; uint test_flags; struct vstore_slot slot[VSTORE_SLOT_COUNT]; + struct ec_pwm_channel pwm[PWM_CHANNEL_COUNT]; } s_state, *g_state; /** @@ -554,6 +561,33 @@ static int process_cmd(struct ec_state *ec, len = sizeof(*resp); break; } + case EC_CMD_PWM_GET_DUTY: { + const struct ec_params_pwm_get_duty *req = req_data; + struct ec_response_pwm_get_duty *resp = resp_data; + struct ec_pwm_channel *pwm; + + if (req->pwm_type != EC_PWM_TYPE_GENERIC) + return -EINVAL; + if (req->index >= PWM_CHANNEL_COUNT) + return -EINVAL; + pwm = &ec->pwm[req->index]; + resp->duty = pwm->duty; + len = sizeof(*resp); + break; + } + case EC_CMD_PWM_SET_DUTY: { + const struct ec_params_pwm_set_duty *req = req_data; + struct ec_pwm_channel *pwm; + + if (req->pwm_type != EC_PWM_TYPE_GENERIC) + return -EINVAL; + if (req->index >= PWM_CHANNEL_COUNT) + return -EINVAL; + pwm = &ec->pwm[req->index]; + pwm->duty = req->duty; + len = 0; + break; + } default: printf(" ** Unknown EC command %#02x\n", req_hdr->command); return -1; @@ -619,6 +653,19 @@ void sandbox_cros_ec_set_test_flags(struct udevice *dev, uint flags) ec->test_flags = flags; } +int sandbox_cros_ec_get_pwm_duty(struct udevice *dev, uint index, uint *duty) +{ + struct ec_state *ec = dev_get_priv(dev); + struct ec_pwm_channel *pwm; + + if (index >= PWM_CHANNEL_COUNT) + return -ENOSPC; + pwm = &ec->pwm[index]; + *duty = pwm->duty; + + return 0; +} + int cros_ec_probe(struct udevice *dev) { struct ec_state *ec = dev_get_priv(dev); diff --git a/test/cmd/pwm.c b/test/cmd/pwm.c index 5343af83fa..2fc0b5e407 100644 --- a/test/cmd/pwm.c +++ b/test/cmd/pwm.c @@ -18,16 +18,20 @@ static int dm_test_pwm_cmd(struct unit_test_state *uts) { struct udevice *dev; + /* cros-ec-pwm */ ut_assertok(uclass_get_device(UCLASS_PWM, 0, &dev)); ut_assertnonnull(dev); ut_assertok(console_record_reset_enable()); /* pwm */ - ut_assertok(run_command("pwm invert 0 0 1", 0)); + /* cros-ec-pwm doesn't support invert */ + ut_asserteq(1, run_command("pwm invert 0 0 1", 0)); + ut_assert_nextline("error(-38)") ut_assert_console_end(); - ut_assertok(run_command("pwm invert 0 0 0", 0)); + ut_asserteq(1, run_command("pwm invert 0 0 0", 0)); + ut_assert_nextline("error(-38)") ut_assert_console_end(); /* pwm */ @@ -41,6 +45,30 @@ static int dm_test_pwm_cmd(struct unit_test_state *uts) ut_assertok(run_command("pwm disable 0 0", 0)); ut_assert_console_end(); + /* sandbox-pwm */ + ut_assertok(uclass_get_device(UCLASS_PWM, 1, &dev)); + ut_assertnonnull(dev); + + ut_assertok(console_record_reset_enable()); + + /* pwm */ + ut_assertok(run_command("pwm invert 1 0 1", 0)); + ut_assert_console_end(); + + ut_assertok(run_command("pwm invert 1 0 0", 0)); + ut_assert_console_end(); + + /* pwm */ + ut_assertok(run_command("pwm config 1 0 10 50", 0)); + ut_assert_console_end(); + + /* pwm */ + ut_assertok(run_command("pwm enable 1 0", 0)); + ut_assert_console_end(); + + ut_assertok(run_command("pwm disable 1 0", 0)); + ut_assert_console_end(); + return 0; } diff --git a/test/dm/Makefile b/test/dm/Makefile index c9644617a1..9ef9171a1c 100644 --- a/test/dm/Makefile +++ b/test/dm/Makefile @@ -30,6 +30,7 @@ obj-$(CONFIG_DM_BOOTCOUNT) += bootcount.o obj-$(CONFIG_CLK) += clk.o clk_ccf.o obj-$(CONFIG_CPU) += cpu.o obj-$(CONFIG_CROS_EC) += cros_ec.o +obj-$(CONFIG_PWM_CROS_EC) += cros_ec_pwm.o obj-$(CONFIG_DEVRES) += devres.o obj-$(CONFIG_DMA) += dma.o obj-$(CONFIG_VIDEO_MIPI_DSI) += dsi_host.o diff --git a/test/dm/cros_ec_pwm.c b/test/dm/cros_ec_pwm.c new file mode 100644 index 0000000000..f8d6e1e6c4 --- /dev/null +++ b/test/dm/cros_ec_pwm.c @@ -0,0 +1,60 @@ +// SPDX-License-Identifier: GPL-2.0+ + +#include +#include +#include +#include +#include +#include +#include +#include + +static int dm_test_cros_ec_pwm(struct unit_test_state *uts) +{ + struct udevice *pwm; + struct udevice *ec; + uint duty; + + ut_assertok(uclass_get_device_by_name(UCLASS_PWM, "cros-ec-pwm", &pwm)); + ut_assertnonnull(pwm); + ec = dev_get_parent(pwm); + ut_assertnonnull(ec); + + ut_assertok(pwm_set_config(pwm, 0, 100, 50)); + ut_assertok(pwm_set_enable(pwm, 0, true)); + ut_assertok(sandbox_cros_ec_get_pwm_duty(ec, 0, &duty)); + ut_asserteq(50 * EC_PWM_MAX_DUTY / 100, duty); + + ut_assertok(pwm_set_config(pwm, 0, 15721, 2719)); + ut_assertok(pwm_set_enable(pwm, 0, true)); + ut_assertok(sandbox_cros_ec_get_pwm_duty(ec, 0, &duty)); + ut_asserteq(2719 * EC_PWM_MAX_DUTY / 15721, duty); + + ut_assertok(pwm_set_enable(pwm, 0, false)); + ut_assertok(sandbox_cros_ec_get_pwm_duty(ec, 0, &duty)); + ut_asserteq(0, duty); + + ut_assertok(pwm_set_enable(pwm, 0, true)); + ut_assertok(sandbox_cros_ec_get_pwm_duty(ec, 0, &duty)); + ut_asserteq(2719 * EC_PWM_MAX_DUTY / 15721, duty); + + ut_assertok(pwm_set_config(pwm, 1, 1000, 0)); + ut_assertok(pwm_set_enable(pwm, 1, true)); + ut_assertok(sandbox_cros_ec_get_pwm_duty(ec, 1, &duty)); + ut_asserteq(0, duty); + + ut_assertok(pwm_set_config(pwm, 2, 1000, 1024)); + ut_assertok(pwm_set_enable(pwm, 2, true)); + ut_assertok(sandbox_cros_ec_get_pwm_duty(ec, 2, &duty)); + ut_asserteq(EC_PWM_MAX_DUTY, duty); + + ut_assertok(pwm_set_config(pwm, 3, EC_PWM_MAX_DUTY, 0xABCD)); + ut_assertok(pwm_set_enable(pwm, 3, true)); + ut_assertok(sandbox_cros_ec_get_pwm_duty(ec, 3, &duty)); + ut_asserteq(0xABCD, duty); + + ut_asserteq(-EINVAL, pwm_set_enable(pwm, 4, true)); + + return 0; +} +DM_TEST(dm_test_cros_ec_pwm, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT); diff --git a/test/dm/panel.c b/test/dm/panel.c index 49f5ac7169..4d435a0d25 100644 --- a/test/dm/panel.c +++ b/test/dm/panel.c @@ -28,7 +28,7 @@ static int dm_test_panel(struct unit_test_state *uts) bool polarity; ut_assertok(uclass_first_device_err(UCLASS_PANEL, &dev)); - ut_assertok(uclass_first_device_err(UCLASS_PWM, &pwm)); + ut_assertok(uclass_get_device_by_name(UCLASS_PWM, "pwm", &pwm)); ut_assertok(uclass_get_device(UCLASS_GPIO, 1, &gpio)); ut_assertok(regulator_get_by_platname("VDD_EMMC_1.8V", ®)); ut_assertok(sandbox_pwm_get_config(pwm, 0, &period_ns, &duty_ns, diff --git a/test/dm/pwm.c b/test/dm/pwm.c index b624cf3d65..dff626c771 100644 --- a/test/dm/pwm.c +++ b/test/dm/pwm.c @@ -20,7 +20,7 @@ static int dm_test_pwm_base(struct unit_test_state *uts) bool enable; bool polarity; - ut_assertok(uclass_get_device(UCLASS_PWM, 0, &dev)); + ut_assertok(uclass_get_device_by_name(UCLASS_PWM, "pwm", &dev)); ut_assertnonnull(dev); ut_assertok(pwm_set_config(dev, 0, 100, 50)); ut_assertok(pwm_set_enable(dev, 0, true)); @@ -35,8 +35,10 @@ static int dm_test_pwm_base(struct unit_test_state *uts) ut_asserteq(period_ns, 4096); ut_asserteq(duty_ns, 50 * 4096 / 100); + ut_assertok(uclass_get_device(UCLASS_PWM, 0, &dev)); ut_assertok(uclass_get_device(UCLASS_PWM, 1, &dev)); - ut_asserteq(-ENODEV, uclass_get_device(UCLASS_PWM, 2, &dev)); + ut_assertok(uclass_get_device(UCLASS_PWM, 2, &dev)); + ut_asserteq(-ENODEV, uclass_get_device(UCLASS_PWM, 3, &dev)); return 0; }