1 // Copyright 2018 The Fuchsia Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include <ddk/debug.h>
6 #include <ddk/device.h>
7 #include <ddk/metadata.h>
8 #include <ddk/metadata/camera.h>
9 #include <ddk/platform-defs.h>
10 #include <ddktl/protocol/gpioimpl.h>
11 #include <fbl/unique_ptr.h>
12 #include <hw/reg.h>
13 #include <soc/aml-meson/g12b-clk.h>
14 #include <soc/aml-t931/t931-gpio.h>
15 #include <soc/aml-t931/t931-hw.h>
16
17 #include "sherlock.h"
18
19 namespace sherlock {
20
21 namespace {
22
23 constexpr uint32_t kClk24MAltFunc = 7;
24 constexpr uint32_t kI2cSDAAltFunc = 2;
25 constexpr uint32_t kI2cSCLAltFunc = 2;
26
27 constexpr pbus_mmio_t mipi_mmios[] = {
28 // CSI PHY0
29 {
30 .base = T931_CSI_PHY0_BASE,
31 .length = T931_CSI_PHY0_LENGTH,
32 },
33 // Analog PHY
34 {
35 .base = T931_APHY_BASE,
36 .length = T931_APHY_LENGTH,
37 },
38 // CSI HOST0
39 {
40 .base = T931_CSI_HOST0_BASE,
41 .length = T931_CSI_HOST0_LENGTH,
42 },
43 // MIPI Adapter
44 {
45 .base = T931_MIPI_ADAPTER_BASE,
46 .length = T931_MIPI_ADAPTER_LENGTH,
47 },
48 // HIU for clocks.
49 {
50 .base = T931_HIU_BASE,
51 .length = T931_HIU_LENGTH,
52 },
53 // Power domain
54 {
55 .base = T931_POWER_DOMAIN_BASE,
56 .length = T931_POWER_DOMAIN_LENGTH,
57 },
58 // Memory PD
59 {
60 .base = T931_MEMORY_PD_BASE,
61 .length = T931_MEMORY_PD_LENGTH,
62 },
63 // Reset
64 {
65 .base = T931_RESET_BASE,
66 .length = T931_RESET_LENGTH,
67 },
68 };
69
70 constexpr camera_sensor_t mipi_sensor[] = {
71 {
72 .vid = PDEV_VID_SONY,
73 .pid = PDEV_PID_SONY_IMX227,
74 .did = PDEV_DID_CAMERA_SENSOR,
75 },
76 };
77
78 constexpr pbus_bti_t mipi_btis[] = {
79 {
80 .iommu_index = 0,
81 .bti_id = BTI_CAMERA,
82 },
83 };
84
85 constexpr pbus_irq_t mipi_irqs[] = {
86 {
87 .irq = T931_MIPI_ADAPTER_IRQ,
88 .mode = ZX_INTERRUPT_MODE_EDGE_HIGH,
89 }};
90
91 constexpr pbus_metadata_t mipi_metadata[] = {
92 {
93 .type = DEVICE_METADATA_PRIVATE,
94 .data_buffer = &mipi_sensor,
95 .data_size = sizeof(camera_sensor_t),
96 },
97 };
98
99 constexpr pbus_i2c_channel_t sensor_i2c[] = {
100 {
101 .bus_id = SHERLOCK_I2C_3,
102 .address = 0x36,
103 },
104 };
105
106 constexpr pbus_gpio_t sensor_gpios[] = {
107 {
108 // vana-enable
109 .gpio = T931_GPIOA(6),
110 },
111 {
112 // vdig-enable
113 .gpio = T931_GPIOZ(12),
114 },
115 {
116 // camera sensor reset
117 .gpio = T931_GPIOZ(0),
118 },
119 };
120
121 static const pbus_clk_t sensor_clk_gates[] = {
122 {
123 .clk = G12B_CLK_CAM_INCK_24M,
124 },
125 };
126
__anon4092bfb00202() 127 static const pbus_dev_t mipi_children = []() {
128 // Sony IMX 227 Camera Sensor
129 pbus_dev_t dev;
130 dev.name = "imx227";
131 dev.i2c_channel_list = sensor_i2c;
132 dev.i2c_channel_count = countof(sensor_i2c);
133 dev.gpio_list = sensor_gpios;
134 dev.gpio_count = countof(sensor_gpios);
135 dev.clk_list = sensor_clk_gates;
136 dev.clk_count = countof(sensor_clk_gates);
137 return dev;
138 }();
139
__anon4092bfb00302() 140 static pbus_dev_t mipi_dev = []() {
141 pbus_dev_t dev;
142 dev.name = "mipi-csi2";
143 dev.vid = PDEV_VID_AMLOGIC;
144 dev.pid = PDEV_PID_AMLOGIC_T931;
145 dev.did = PDEV_DID_AMLOGIC_MIPI;
146 dev.mmio_list = mipi_mmios;
147 dev.mmio_count = countof(mipi_mmios);
148 dev.metadata_list = mipi_metadata;
149 dev.metadata_count = countof(mipi_metadata);
150 dev.child_list = &mipi_children;
151 dev.child_count = 1;
152 dev.bti_list = mipi_btis;
153 dev.bti_count = countof(mipi_btis);
154 dev.irq_list = mipi_irqs;
155 dev.irq_count = countof(mipi_irqs);
156 return dev;
157 }();
158
159 } // namespace
160
CameraInit()161 zx_status_t Sherlock::CameraInit() {
162
163 // Set GPIO alternate functions.
164 gpio_impl_.SetAltFunction(T931_GPIOAO(10), kClk24MAltFunc);
165
166 gpio_impl_.SetAltFunction(T931_GPIOA(14), kI2cSDAAltFunc);
167 gpio_impl_.SetAltFunction(T931_GPIOA(15), kI2cSCLAltFunc);
168
169 zx_status_t status = pbus_.DeviceAdd(&mipi_dev);
170 if (status != ZX_OK) {
171 zxlogf(ERROR, "%s: DeviceAdd failed %d\n", __func__, status);
172 return status;
173 }
174
175 return status;
176 }
177
178 } // namespace sherlock
179