| // Copyright 2018 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include <ddk/debug.h> |
| #include <ddk/device.h> |
| #include <ddk/metadata.h> |
| #include <ddk/metadata/gpio.h> |
| #include <ddk/platform-defs.h> |
| #include <ddk/protocol/platform/bus.h> |
| #include <soc/aml-t931/t931-gpio.h> |
| #include <soc/aml-t931/t931-hw.h> |
| |
| #include "sherlock-gpios.h" |
| #include "sherlock.h" |
| |
| namespace sherlock { |
| |
| static const pbus_mmio_t gpio_mmios[] = { |
| { |
| .base = T931_GPIO_BASE, |
| .length = T931_GPIO_LENGTH, |
| }, |
| { |
| .base = T931_GPIO_A0_BASE, |
| .length = T931_GPIO_AO_LENGTH, |
| }, |
| { |
| .base = T931_GPIO_INTERRUPT_BASE, |
| .length = T931_GPIO_INTERRUPT_LENGTH, |
| }, |
| }; |
| |
| static const pbus_irq_t gpio_irqs[] = { |
| { |
| .irq = T931_GPIO_IRQ_0, |
| .mode = ZX_INTERRUPT_MODE_DEFAULT, |
| }, |
| { |
| .irq = T931_GPIO_IRQ_1, |
| .mode = ZX_INTERRUPT_MODE_DEFAULT, |
| }, |
| { |
| .irq = T931_GPIO_IRQ_2, |
| .mode = ZX_INTERRUPT_MODE_DEFAULT, |
| }, |
| { |
| .irq = T931_GPIO_IRQ_3, |
| .mode = ZX_INTERRUPT_MODE_DEFAULT, |
| }, |
| { |
| .irq = T931_GPIO_IRQ_4, |
| .mode = ZX_INTERRUPT_MODE_DEFAULT, |
| }, |
| { |
| .irq = T931_GPIO_IRQ_5, |
| .mode = ZX_INTERRUPT_MODE_DEFAULT, |
| }, |
| { |
| .irq = T931_GPIO_IRQ_6, |
| .mode = ZX_INTERRUPT_MODE_DEFAULT, |
| }, |
| { |
| .irq = T931_GPIO_IRQ_7, |
| .mode = ZX_INTERRUPT_MODE_DEFAULT, |
| }, |
| }; |
| |
| // GPIOs to expose from generic GPIO driver. |
| #ifdef FACTORY_BUILD |
| #define GPIO_PIN_COUNT 120 |
| static const gpio_pin_t gpio_pins[] = { |
| {T931_GPIOZ(0)}, {T931_GPIOZ(1)}, {T931_GPIOZ(2)}, {T931_GPIOZ(3)}, |
| {T931_GPIOZ(4)}, {T931_GPIOZ(5)}, {T931_GPIOZ(6)}, {T931_GPIOZ(7)}, |
| {T931_GPIOZ(8)}, {T931_GPIOZ(9)}, {T931_GPIOZ(10)}, {T931_GPIOZ(11)}, |
| {T931_GPIOZ(12)}, {T931_GPIOZ(13)}, {T931_GPIOZ(14)}, {T931_GPIOZ(15)}, |
| {T931_GPIOA(0)}, {T931_GPIOA(1)}, {T931_GPIOA(2)}, {T931_GPIOA(3)}, |
| {T931_GPIOA(4)}, {T931_GPIOA(5)}, {T931_GPIOA(6)}, {T931_GPIOA(7)}, |
| {T931_GPIOA(8)}, {T931_GPIOA(9)}, {T931_GPIOA(10)}, {T931_GPIOA(11)}, |
| {T931_GPIOA(12)}, {T931_GPIOA(13)}, {T931_GPIOA(14)}, {T931_GPIOA(15)}, |
| {T931_GPIOBOOT(0)}, {T931_GPIOBOOT(1)}, {T931_GPIOBOOT(2)}, {T931_GPIOBOOT(3)}, |
| {T931_GPIOBOOT(4)}, {T931_GPIOBOOT(5)}, {T931_GPIOBOOT(6)}, {T931_GPIOBOOT(7)}, |
| {T931_GPIOBOOT(8)}, {T931_GPIOBOOT(9)}, {T931_GPIOBOOT(10)}, {T931_GPIOBOOT(11)}, |
| {T931_GPIOBOOT(12)}, {T931_GPIOBOOT(13)}, {T931_GPIOBOOT(14)}, {T931_GPIOBOOT(15)}, |
| {T931_GPIOC(0)}, {T931_GPIOC(1)}, {T931_GPIOC(2)}, {T931_GPIOC(3)}, |
| {T931_GPIOC(4)}, {T931_GPIOC(5)}, {T931_GPIOC(6)}, {T931_GPIOC(7)}, |
| {T931_GPIOX(0)}, {T931_GPIOX(1)}, {T931_GPIOX(2)}, {T931_GPIOX(3)}, |
| {T931_GPIOX(4)}, {T931_GPIOX(5)}, {T931_GPIOX(6)}, {T931_GPIOX(7)}, |
| {T931_GPIOX(8)}, {T931_GPIOX(9)}, {T931_GPIOX(10)}, {T931_GPIOX(11)}, |
| {T931_GPIOX(12)}, {T931_GPIOX(13)}, {T931_GPIOX(14)}, {T931_GPIOX(15)}, |
| {T931_GPIOX(16)}, {T931_GPIOX(17)}, {T931_GPIOX(18)}, {T931_GPIOX(19)}, |
| {T931_GPIOX(20)}, {T931_GPIOX(21)}, {T931_GPIOX(22)}, {T931_GPIOX(23)}, |
| {T931_GPIOH(0)}, {T931_GPIOH(1)}, {T931_GPIOH(2)}, {T931_GPIOH(3)}, |
| {T931_GPIOH(4)}, {T931_GPIOH(5)}, {T931_GPIOH(6)}, {T931_GPIOH(7)}, |
| {T931_GPIOH(8)}, {T931_GPIOH(9)}, {T931_GPIOH(10)}, {T931_GPIOH(11)}, |
| {T931_GPIOH(12)}, {T931_GPIOH(13)}, {T931_GPIOH(14)}, {T931_GPIOH(15)}, |
| {T931_GPIOAO(0)}, {T931_GPIOAO(1)}, {T931_GPIOAO(2)}, {T931_GPIOAO(3)}, |
| {T931_GPIOAO(4)}, {T931_GPIOAO(5)}, {T931_GPIOAO(6)}, {T931_GPIOAO(7)}, |
| {T931_GPIOAO(8)}, {T931_GPIOAO(9)}, {T931_GPIOAO(10)}, {T931_GPIOAO(11)}, |
| {T931_GPIOAO(12)}, {T931_GPIOAO(13)}, {T931_GPIOAO(14)}, {T931_GPIOAO(15)}, |
| {T931_GPIOE(0)}, {T931_GPIOE(1)}, {T931_GPIOE(2)}, {T931_GPIOE(3)}, |
| {T931_GPIOE(4)}, {T931_GPIOE(5)}, {T931_GPIOE(6)}, {T931_GPIOE(7)}, |
| }; |
| #else |
| #define GPIO_PIN_COUNT 29 |
| static const gpio_pin_t gpio_pins[] = { |
| // For wifi. |
| {T931_WIFI_HOST_WAKE}, |
| // For display. |
| {GPIO_PANEL_DETECT}, |
| {GPIO_LCD_RESET}, |
| // For touch screen. |
| {GPIO_TOUCH_INTERRUPT}, |
| {GPIO_TOUCH_RESET}, |
| // For audio out. |
| {GPIO_AUDIO_SOC_FAULT_L}, |
| {GPIO_SOC_AUDIO_EN}, |
| // For Camera. |
| {GPIO_VANA_ENABLE}, |
| {GPIO_VDIG_ENABLE}, |
| {GPIO_CAM_RESET}, |
| {GPIO_LIGHT_INTERRUPT}, |
| // For SPI interface. |
| {GPIO_SPICC0_SS0}, |
| // For buttons. |
| {GPIO_VOLUME_UP}, |
| {GPIO_VOLUME_DOWN}, |
| {GPIO_VOLUME_BOTH}, |
| {GPIO_MIC_PRIVACY}, |
| // For eMMC. |
| {T931_EMMC_RST}, |
| // For SDIO. |
| {T931_WIFI_REG_ON}, |
| // For OpenThread radio |
| {GPIO_OT_RADIO_RESET}, |
| {GPIO_OT_RADIO_INTERRUPT}, |
| {GPIO_OT_RADIO_BOOTLOADER}, |
| // LED |
| {GPIO_AMBER_LED}, |
| {GPIO_GREEN_LED}, |
| // For Bluetooth. |
| {GPIO_SOC_WIFI_LPO_32k768}, |
| {GPIO_SOC_BT_REG_ON}, |
| |
| // Luis Audio |
| {GPIO_AMP_24V_EN}, |
| |
| // Luis camera switch, unused on Sherlock |
| {GPIO_CAM_MUTE}, |
| |
| // Luis camera supplies, unused on Sherlock |
| {GPIO_CAM_VIF_ENABLE}, |
| {GPIO_CAM_VANA_ENABLE}, |
| }; |
| #endif // FACTORY_BUILD |
| |
| static const pbus_metadata_t gpio_metadata[] = { |
| { |
| .type = DEVICE_METADATA_GPIO_PINS, |
| .data_buffer = &gpio_pins, |
| .data_size = sizeof(gpio_pins), |
| }, |
| }; |
| |
| static pbus_dev_t gpio_dev = []() { |
| pbus_dev_t dev = {}; |
| dev.name = "gpio"; |
| dev.vid = PDEV_VID_AMLOGIC; |
| dev.pid = PDEV_PID_AMLOGIC_T931; |
| dev.did = PDEV_DID_AMLOGIC_GPIO; |
| dev.mmio_list = gpio_mmios; |
| dev.mmio_count = countof(gpio_mmios); |
| dev.irq_list = gpio_irqs; |
| dev.irq_count = countof(gpio_irqs); |
| dev.metadata_list = gpio_metadata; |
| dev.metadata_count = countof(gpio_metadata); |
| return dev; |
| }(); |
| |
| zx_status_t Sherlock::GpioInit() { |
| static_assert(countof(gpio_pins) == GPIO_PIN_COUNT, "Incorrect pin count."); |
| |
| zx_status_t status = pbus_.ProtocolDeviceAdd(ZX_PROTOCOL_GPIO_IMPL, &gpio_dev); |
| if (status != ZX_OK) { |
| zxlogf(ERROR, "%s: ProtocolDeviceAdd failed %d", __func__, status); |
| return status; |
| } |
| // This test binds to system/dev/gpio/gpio-test to check that GPIOs work at all. |
| // gpio-test enables interrupts and write/read on the test GPIOs configured below. |
| //#define GPIO_TEST |
| #ifdef GPIO_TEST |
| const pbus_gpio_t gpio_test_gpios[] = { |
| { |
| .gpio = T931_GPIOZ(5), // Volume down, not used in this test. |
| }, |
| { |
| .gpio = T931_GPIOZ(4), // Volume up, to test gpio_get_interrupt(). |
| }, |
| }; |
| |
| pbus_dev_t gpio_test_dev = {}; |
| gpio_test_dev.name = "sherlock-gpio-test"; |
| gpio_test_dev.vid = PDEV_VID_GENERIC; |
| gpio_test_dev.pid = PDEV_PID_GENERIC; |
| gpio_test_dev.did = PDEV_DID_GPIO_TEST; |
| gpio_test_dev.gpio_list = gpio_test_gpios; |
| gpio_test_dev.gpio_count = countof(gpio_test_gpios); |
| if ((status = pbus_.DeviceAdd(&gpio_test_dev)) != ZX_OK) { |
| zxlogf(ERROR, "%s: Could not add gpio_test_dev %d", __FUNCTION__, status); |
| return status; |
| } |
| #endif |
| |
| gpio_impl_ = ddk::GpioImplProtocolClient(parent()); |
| if (!gpio_impl_.is_valid()) { |
| zxlogf(ERROR, "%s: device_get_protocol failed %d", __func__, status); |
| return ZX_ERR_INTERNAL; |
| } |
| |
| // Luis audio |
| if (pid_ == PDEV_PID_LUIS) { |
| gpio_impl_.ConfigOut(GPIO_AMP_24V_EN, 1); |
| } |
| |
| return ZX_OK; |
| } |
| |
| } // namespace sherlock |
