1 # SPDX-FileCopyrightText: 2021 Melissa LeBlanc-Williams for Adafruit Industries
3 # SPDX-License-Identifier: MIT
5 G12A, G12B, and SM1 Common Definitions
7 Linux kernel 4.9.y (hardkernel)
8 linux/include/dt-bindings/gpio/meson-g12a-gpio.h
9 Linux kernel 5.4.y (mainline)
10 linux/include/dt-bindings/gpio/meson-g12a-gpio.h
11 linux/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
14 from typing import Optional
18 from adafruit_blinka.microcontroller.generic_linux.libgpiod_pin import Pin
20 chip0 = gpiod.Chip("0")
21 chip1 = gpiod.Chip("1")
23 if chip0.num_lines() < 20:
26 periphs_offset = chip1.num_lines() - 85
30 periphs_offset = chip0.num_lines() - 85
35 GPIOAO_0 = GPIO496 = Pin((aobus, 0))
36 GPIOAO_1 = GPIO497 = Pin((aobus, 1))
37 GPIOAO_2 = GPIO498 = Pin((aobus, 2))
38 GPIOAO_3 = GPIO499 = Pin((aobus, 3))
39 GPIOAO_4 = GPIO500 = Pin((aobus, 4))
40 GPIOAO_5 = GPIO501 = Pin((aobus, 5))
41 GPIOAO_6 = GPIO502 = Pin((aobus, 6))
42 GPIOAO_7 = GPIO503 = Pin((aobus, 7))
43 GPIOAO_8 = GPIO504 = Pin((aobus, 8))
44 GPIOAO_9 = GPIO505 = Pin((aobus, 9))
45 GPIOAO_10 = GPIO506 = Pin((aobus, 10))
46 GPIOAO_11 = GPIO507 = Pin((aobus, 11))
47 GPIOE_0 = GPIO508 = Pin((aobus, 12))
48 GPIOE_1 = GPIO509 = Pin((aobus, 13))
49 GPIOE_2 = GPIO510 = Pin((aobus, 14))
50 GPIO_TEST_N = GPIO511 = Pin((aobus, 15))
52 GPIOH_0 = GPIO427 = Pin((periphs, 16 + periphs_offset))
53 GPIOH_1 = GPIO428 = Pin((periphs, 17 + periphs_offset))
54 GPIOH_2 = GPIO429 = Pin((periphs, 18 + periphs_offset))
55 GPIOH_3 = GPIO430 = Pin((periphs, 19 + periphs_offset))
56 GPIOH_4 = GPIO431 = Pin((periphs, 20 + periphs_offset))
57 GPIOH_5 = GPIO432 = Pin((periphs, 21 + periphs_offset))
58 GPIOH_6 = GPIO433 = Pin((periphs, 22 + periphs_offset))
59 GPIOH_7 = GPIO434 = Pin((periphs, 23 + periphs_offset))
60 GPIOH_8 = GPIO435 = Pin((periphs, 24 + periphs_offset))
62 GPIOA_0 = GPIO460 = Pin((periphs, 49 + periphs_offset))
63 GPIOA_1 = GPIO461 = Pin((periphs, 50 + periphs_offset))
64 GPIOA_2 = GPIO462 = Pin((periphs, 51 + periphs_offset))
65 GPIOA_3 = GPIO463 = Pin((periphs, 52 + periphs_offset))
66 GPIOA_4 = GPIO464 = Pin((periphs, 53 + periphs_offset))
67 GPIOA_5 = GPIO465 = Pin((periphs, 54 + periphs_offset))
68 GPIOA_6 = GPIO466 = Pin((periphs, 55 + periphs_offset))
69 GPIOA_7 = GPIO467 = Pin((periphs, 56 + periphs_offset))
70 GPIOA_8 = GPIO468 = Pin((periphs, 57 + periphs_offset))
71 GPIOA_9 = GPIO469 = Pin((periphs, 58 + periphs_offset))
72 GPIOA_10 = GPIO470 = Pin((periphs, 59 + periphs_offset))
73 GPIOA_11 = GPIO471 = Pin((periphs, 60 + periphs_offset))
74 GPIOA_12 = GPIO472 = Pin((periphs, 61 + periphs_offset))
75 GPIOA_13 = GPIO473 = Pin((periphs, 62 + periphs_offset))
76 GPIOA_14 = GPIO474 = Pin((periphs, 63 + periphs_offset))
77 GPIOA_15 = GPIO475 = Pin((periphs, 64 + periphs_offset))
79 GPIOX_0 = GPIO476 = Pin((periphs, 65 + periphs_offset))
80 GPIOX_1 = GPIO477 = Pin((periphs, 66 + periphs_offset))
81 GPIOX_2 = GPIO478 = Pin((periphs, 67 + periphs_offset))
82 GPIOX_3 = GPIO479 = Pin((periphs, 68 + periphs_offset))
83 GPIOX_4 = GPIO480 = Pin((periphs, 69 + periphs_offset))
84 GPIOX_5 = GPIO481 = Pin((periphs, 70 + periphs_offset))
85 GPIOX_6 = GPIO482 = Pin((periphs, 71 + periphs_offset))
86 GPIOX_7 = GPIO483 = Pin((periphs, 72 + periphs_offset))
87 GPIOX_8 = GPIO484 = Pin((periphs, 73 + periphs_offset))
88 GPIOX_9 = GPIO485 = Pin((periphs, 74 + periphs_offset))
89 GPIOX_10 = GPIO486 = Pin((periphs, 75 + periphs_offset))
90 GPIOX_11 = GPIO487 = Pin((periphs, 76 + periphs_offset))
91 GPIOX_12 = GPIO488 = Pin((periphs, 77 + periphs_offset))
92 GPIOX_13 = GPIO489 = Pin((periphs, 78 + periphs_offset))
93 GPIOX_14 = GPIO490 = Pin((periphs, 79 + periphs_offset))
94 GPIOX_15 = GPIO491 = Pin((periphs, 80 + periphs_offset))
95 GPIOX_16 = GPIO492 = Pin((periphs, 81 + periphs_offset))
96 GPIOX_17 = GPIO493 = Pin((periphs, 82 + periphs_offset))
97 GPIOX_18 = GPIO494 = Pin((periphs, 83 + periphs_offset))
98 GPIOX_19 = GPIO495 = Pin((periphs, 84 + periphs_offset))
105 # ordered as spiId, sckId, mosiId, misoId
106 spiPorts = ((0, SPI0_SCLK, SPI0_MOSI, SPI0_MISO),)
111 # ordered as uartId, txId, rxId
112 uartPorts = ((1, UART1_TX, UART1_RX),)
115 def get_dts_alias(device: str) -> Optional[str]:
116 """Get the Device Tree Alias"""
117 uevent_path = "/sys/bus/platform/devices/" + device + "/uevent"
118 if os.path.exists(uevent_path):
119 with open(uevent_path, "r", encoding="utf-8") as fd:
120 pattern = r"^OF_ALIAS_0=(.*)$"
121 uevent = fd.read().split("\n")
123 match = re.search(pattern, line)
125 return match.group(1).upper()
129 # ordered as i2cId, sclId, sdaId
132 alias = get_dts_alias("ffd1d000.i2c")
133 if alias is not None:
134 globals()[alias + "_SCL"] = GPIOX_18
135 globals()[alias + "_SDA"] = GPIOX_17
136 i2cPorts.append((int(alias[3]), GPIOX_18, GPIOX_17))
138 alias = get_dts_alias("ffd1c000.i2c")
139 if alias is not None:
140 globals()[alias + "_SCL"] = GPIOA_15
141 globals()[alias + "_SDA"] = GPIOA_14
142 i2cPorts.append((int(alias[3]), GPIOA_15, GPIOA_14))
144 i2cPorts = tuple(i2cPorts)