| // 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 <fuchsia/hardware/gpioimpl/cpp/banjo.h> |
| #include <fuchsia/hardware/platform/bus/c/banjo.h> |
| |
| #include <ddk/debug.h> |
| #include <ddk/device.h> |
| #include <ddk/metadata.h> |
| #include <ddk/metadata/i2c.h> |
| #include <ddk/platform-defs.h> |
| #include <soc/aml-t931/t931-gpio.h> |
| #include <soc/aml-t931/t931-hw.h> |
| |
| #include "sherlock.h" |
| |
| namespace sherlock { |
| |
| static const pbus_mmio_t i2c_mmios[] = { |
| { |
| .base = T931_I2C_AOBUS_BASE, |
| .length = 0x20, |
| }, |
| { |
| .base = T931_I2C2_BASE, |
| .length = 0x20, |
| }, |
| { |
| .base = T931_I2C3_BASE, |
| .length = 0x20, |
| }, |
| }; |
| |
| static const uint32_t luis_i2c_clock_delays[] = { |
| 0, // Ignore I2C AO |
| 104, // Set I2C 2 (touch) to 400 kHz |
| 0, // Ignore I2C 3 |
| }; |
| |
| static const pbus_irq_t i2c_irqs[] = { |
| { |
| .irq = T931_I2C_AO_0_IRQ, |
| .mode = ZX_INTERRUPT_MODE_EDGE_HIGH, |
| }, |
| { |
| .irq = T931_I2C2_IRQ, |
| .mode = ZX_INTERRUPT_MODE_EDGE_HIGH, |
| }, |
| { |
| .irq = T931_I2C3_IRQ, |
| .mode = ZX_INTERRUPT_MODE_EDGE_HIGH, |
| }, |
| }; |
| |
| static const i2c_channel_t luis_ernie_i2c_channels[] = { |
| // Backlight I2C |
| { |
| .bus_id = SHERLOCK_I2C_3, |
| .address = 0x2C, |
| .vid = 0, |
| .pid = 0, |
| .did = 0, |
| }, |
| // Touch screen I2C |
| { |
| .bus_id = SHERLOCK_I2C_2, |
| .address = 0x40, |
| .vid = 0, |
| .pid = 0, |
| .did = 0, |
| }, |
| // Codec 0 |
| { |
| .bus_id = SHERLOCK_I2C_A0_0, |
| .address = 0x4c, |
| .vid = 0, |
| .pid = 0, |
| .did = 0, |
| }, |
| // IMX355 Camera Sensor |
| { |
| .bus_id = SHERLOCK_I2C_3, |
| .address = 0x1a, |
| .vid = 0, |
| .pid = 0, |
| .did = 0, |
| }, |
| // Light Sensor |
| { |
| .bus_id = SHERLOCK_I2C_A0_0, |
| .address = 0x39, |
| .vid = 0, |
| .pid = 0, |
| .did = 0, |
| }, |
| // IMX355 Camera EEPROM |
| { |
| .bus_id = SHERLOCK_I2C_3, |
| .address = 0x51, |
| .vid = 0, |
| .pid = 0, |
| .did = 0, |
| }, |
| // 0P8_EE_BUCK - platform |
| { |
| .bus_id = SHERLOCK_I2C_A0_0, |
| .address = 0x60, |
| .vid = 0, |
| .pid = 0, |
| .did = 0, |
| }, |
| // CPU_A_BUCK - platform |
| { |
| .bus_id = SHERLOCK_I2C_3, |
| .address = 0x60, |
| .vid = 0, |
| .pid = 0, |
| .did = 0, |
| }, |
| // 0P8_EE_BUCK - form factor |
| { |
| .bus_id = SHERLOCK_I2C_A0_0, |
| .address = 0x6a, |
| .vid = 0, |
| .pid = 0, |
| .did = 0, |
| }, |
| // CPU_A_BUCK - form factor |
| { |
| .bus_id = SHERLOCK_I2C_A0_0, |
| .address = 0x69, |
| .vid = 0, |
| .pid = 0, |
| .did = 0, |
| }, |
| // Codec 1 |
| { |
| .bus_id = SHERLOCK_I2C_A0_0, |
| .address = 0x2d, |
| .vid = 0, |
| .pid = 0, |
| .did = 0, |
| }, |
| }; |
| |
| static const i2c_channel_t sherlock_i2c_channels[] = { |
| // Backlight I2C |
| { |
| .bus_id = SHERLOCK_I2C_3, |
| .address = 0x2C, |
| .vid = 0, |
| .pid = 0, |
| .did = 0, |
| }, |
| // Touch screen I2C |
| { |
| .bus_id = SHERLOCK_I2C_2, |
| .address = 0x38, |
| .vid = 0, |
| .pid = 0, |
| .did = 0, |
| }, |
| // Tweeter left |
| { |
| .bus_id = SHERLOCK_I2C_A0_0, |
| .address = 0x6c, |
| .vid = 0, |
| .pid = 0, |
| .did = 0, |
| }, |
| // Tweeter right |
| { |
| .bus_id = SHERLOCK_I2C_A0_0, |
| .address = 0x6d, |
| .vid = 0, |
| .pid = 0, |
| .did = 0, |
| }, |
| // Woofer |
| { |
| .bus_id = SHERLOCK_I2C_A0_0, |
| .address = 0x6f, |
| .vid = 0, |
| .pid = 0, |
| .did = 0, |
| }, |
| // IMX227 Camera Sensor |
| { |
| .bus_id = SHERLOCK_I2C_3, |
| .address = 0x36, |
| .vid = 0, |
| .pid = 0, |
| .did = 0, |
| }, |
| // Light Sensor |
| { |
| .bus_id = SHERLOCK_I2C_A0_0, |
| .address = 0x39, |
| .vid = 0, |
| .pid = 0, |
| .did = 0, |
| }, |
| }; |
| |
| static const pbus_metadata_t sherlock_i2c_metadata[] = { |
| { |
| .type = DEVICE_METADATA_I2C_CHANNELS, |
| .data_buffer = &sherlock_i2c_channels, |
| .data_size = sizeof(sherlock_i2c_channels), |
| }, |
| }; |
| |
| static const pbus_metadata_t luis_ernie_i2c_metadata[] = { |
| { |
| .type = DEVICE_METADATA_I2C_CHANNELS, |
| .data_buffer = &luis_ernie_i2c_channels, |
| .data_size = sizeof(luis_ernie_i2c_channels), |
| }, |
| { |
| .type = DEVICE_METADATA_PRIVATE, |
| .data_buffer = &luis_i2c_clock_delays, |
| .data_size = sizeof(luis_i2c_clock_delays), |
| }, |
| }; |
| |
| zx_status_t Sherlock::I2cInit() { |
| // setup pinmux for our I2C busses |
| // i2c_ao_0 |
| gpio_impl_.SetAltFunction(T931_GPIOAO(2), 1); |
| gpio_impl_.SetAltFunction(T931_GPIOAO(3), 1); |
| if (pid_ == PDEV_PID_LUIS) { |
| gpio_impl_.SetDriveStrength(T931_GPIOAO(2), 3000, nullptr); |
| gpio_impl_.SetDriveStrength(T931_GPIOAO(3), 3000, nullptr); |
| } |
| // i2c2 |
| gpio_impl_.SetAltFunction(T931_GPIOZ(14), 3); |
| gpio_impl_.SetAltFunction(T931_GPIOZ(15), 3); |
| // i2c3 |
| gpio_impl_.SetAltFunction(T931_GPIOA(14), 2); |
| gpio_impl_.SetAltFunction(T931_GPIOA(15), 2); |
| |
| pbus_dev_t dev = {}; |
| dev.name = "gpio"; |
| dev.vid = PDEV_VID_AMLOGIC; |
| dev.pid = PDEV_PID_GENERIC; |
| dev.did = PDEV_DID_AMLOGIC_I2C; |
| dev.mmio_list = i2c_mmios; |
| dev.mmio_count = countof(i2c_mmios); |
| dev.irq_list = i2c_irqs; |
| dev.irq_count = countof(i2c_irqs); |
| |
| if (pid_ == PDEV_PID_SHERLOCK) { |
| dev.metadata_list = sherlock_i2c_metadata; |
| dev.metadata_count = countof(sherlock_i2c_metadata); |
| } else { |
| dev.metadata_list = luis_ernie_i2c_metadata; |
| dev.metadata_count = countof(luis_ernie_i2c_metadata); |
| }; |
| |
| zx_status_t status = pbus_.DeviceAdd(&dev); |
| if (status != ZX_OK) { |
| zxlogf(ERROR, "%s: DeviceAdd failed %d", __func__, status); |
| return status; |
| } |
| |
| return ZX_OK; |
| } |
| |
| } // namespace sherlock |