| // Copyright 2019 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 <lib/focaltech/focaltech.h> |
| #include <limits.h> |
| #include <unistd.h> |
| |
| #include <ddk/binding.h> |
| #include <ddk/debug.h> |
| #include <ddk/device.h> |
| #include <ddk/metadata.h> |
| #include <ddk/platform-defs.h> |
| #include <ddk/protocol/platform/bus.h> |
| #include <fbl/algorithm.h> |
| #include <soc/aml-s905d2/s905d2-gpio.h> |
| #include <soc/aml-s905d2/s905d2-hw.h> |
| |
| #include "astro-gpios.h" |
| #include "astro.h" |
| |
| namespace astro { |
| |
| static const uint32_t device_id = FOCALTECH_DEVICE_FT3X27; |
| static const device_metadata_t ft3x27_touch_metadata[] = { |
| {.type = DEVICE_METADATA_PRIVATE, .data = &device_id, .length = sizeof(device_id)}, |
| }; |
| |
| // Composite binding rules for focaltech touch driver. |
| static const zx_bind_inst_t root_match[] = { |
| BI_MATCH(), |
| }; |
| const zx_bind_inst_t ft_i2c_match[] = { |
| BI_ABORT_IF(NE, BIND_PROTOCOL, ZX_PROTOCOL_I2C), |
| BI_ABORT_IF(NE, BIND_I2C_BUS_ID, ASTRO_I2C_2), |
| BI_MATCH_IF(EQ, BIND_I2C_ADDRESS, I2C_FOCALTECH_TOUCH_ADDR), |
| }; |
| const zx_bind_inst_t goodix_i2c_match[] = { |
| BI_ABORT_IF(NE, BIND_PROTOCOL, ZX_PROTOCOL_I2C), |
| BI_ABORT_IF(NE, BIND_I2C_BUS_ID, ASTRO_I2C_2), |
| BI_MATCH_IF(EQ, BIND_I2C_ADDRESS, I2C_GOODIX_TOUCH_ADDR), |
| }; |
| static const zx_bind_inst_t gpio_int_match[] = { |
| BI_ABORT_IF(NE, BIND_PROTOCOL, ZX_PROTOCOL_GPIO), |
| BI_MATCH_IF(EQ, BIND_GPIO_PIN, GPIO_TOUCH_INTERRUPT), |
| }; |
| static const zx_bind_inst_t gpio_reset_match[] = { |
| BI_ABORT_IF(NE, BIND_PROTOCOL, ZX_PROTOCOL_GPIO), |
| BI_MATCH_IF(EQ, BIND_GPIO_PIN, GPIO_TOUCH_RESET), |
| }; |
| static const device_fragment_part_t ft_i2c_fragment[] = { |
| {countof(root_match), root_match}, |
| {countof(ft_i2c_match), ft_i2c_match}, |
| }; |
| static const device_fragment_part_t goodix_i2c_fragment[] = { |
| {countof(root_match), root_match}, |
| {countof(goodix_i2c_match), goodix_i2c_match}, |
| }; |
| static const device_fragment_part_t gpio_int_fragment[] = { |
| {countof(root_match), root_match}, |
| {countof(gpio_int_match), gpio_int_match}, |
| }; |
| static const device_fragment_part_t gpio_reset_fragment[] = { |
| {countof(root_match), root_match}, |
| {countof(gpio_reset_match), gpio_reset_match}, |
| }; |
| static const device_fragment_t ft_fragments[] = { |
| {countof(ft_i2c_fragment), ft_i2c_fragment}, |
| {countof(gpio_int_fragment), gpio_int_fragment}, |
| {countof(gpio_reset_fragment), gpio_reset_fragment}, |
| }; |
| static const device_fragment_t goodix_fragments[] = { |
| {countof(goodix_i2c_fragment), goodix_i2c_fragment}, |
| {countof(gpio_int_fragment), gpio_int_fragment}, |
| {countof(gpio_reset_fragment), gpio_reset_fragment}, |
| }; |
| |
| zx_status_t Astro::TouchInit() { |
| // Check the display ID pin to determine which driver device to add |
| gpio_impl_.SetAltFunction(S905D2_GPIOH(5), 0); |
| gpio_impl_.ConfigIn(S905D2_GPIOH(5), GPIO_NO_PULL); |
| uint8_t gpio_state; |
| /* Two variants of display are supported, one with BOE display panel and |
| ft3x27 touch controller, the other with INX panel and Goodix touch |
| controller. This GPIO input is used to identify each. |
| Logic 0 for BOE/ft3x27 combination |
| Logic 1 for Innolux/Goodix combination |
| */ |
| gpio_impl_.Read(S905D2_GPIOH(5), &gpio_state); |
| |
| if (gpio_state) { |
| const zx_device_prop_t props[] = { |
| {BIND_PLATFORM_DEV_VID, 0, PDEV_VID_GOOGLE}, |
| {BIND_PLATFORM_DEV_PID, 0, PDEV_PID_ASTRO}, |
| {BIND_PLATFORM_DEV_DID, 0, PDEV_DID_ASTRO_GOODIXTOUCH}, |
| }; |
| |
| const composite_device_desc_t comp_desc = { |
| .props = props, |
| .props_count = countof(props), |
| .fragments = goodix_fragments, |
| .fragments_count = countof(goodix_fragments), |
| .coresident_device_index = UINT32_MAX, |
| .metadata_list = nullptr, |
| .metadata_count = 0, |
| }; |
| |
| zx_status_t status = DdkAddComposite("gt92xx-touch", &comp_desc); |
| if (status != ZX_OK) { |
| zxlogf(INFO, "astro_touch_init(gt92xx): composite_device_add failed: %d", status); |
| return status; |
| } |
| } else { |
| const zx_device_prop_t props[] = { |
| {BIND_PLATFORM_DEV_VID, 0, PDEV_VID_GENERIC}, |
| {BIND_PLATFORM_DEV_PID, 0, PDEV_PID_ASTRO}, |
| {BIND_PLATFORM_DEV_DID, 0, PDEV_DID_FOCALTOUCH}, |
| }; |
| |
| const composite_device_desc_t comp_desc = { |
| .props = props, |
| .props_count = countof(props), |
| .fragments = ft_fragments, |
| .fragments_count = countof(ft_fragments), |
| .coresident_device_index = UINT32_MAX, |
| .metadata_list = ft3x27_touch_metadata, |
| .metadata_count = fbl::count_of(ft3x27_touch_metadata), |
| }; |
| |
| zx_status_t status = DdkAddComposite("ft3x27-touch", &comp_desc); |
| if (status != ZX_OK) { |
| zxlogf(ERROR, "%s(ft3x27): CompositeDeviceAdd failed: %d", __func__, status); |
| return status; |
| } |
| } |
| |
| return ZX_OK; |
| } |
| |
| } // namespace astro |