Ken Van Hoeylandt
30 lines
1.3 KiB
C++
30 lines
1.3 KiB
C++
#pragma once
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#include <tactility/device.h>
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#include <cstddef>
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#include <cstdint>
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#include <vector>
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// Constructs, parents, binds and starts a dynamically-built Device. Mirrors
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// device_construct_add_start(), but with a device_set_parent() call inserted between construct and add
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bool construct_add_start(Device* device, Device* parent, const char* compatible);
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// Unpacks a vendor-typed init-cmd array (ili9881c_lcd_init_cmd_t / st7123_lcd_init_cmd_t - same
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// field layout) into the flattened [cmd, data_len, delay_ms, data_len bytes...] byte encoding that
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// ili9881c-module/st7123-module's init-sequence config field expects (the same encoding a
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// devicetree "array" property would produce - see e.g. ili9881c-module's binding yaml). Needed
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// because these Configs are built dynamically here rather than from a .dts node.
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template<typename InitCmd>
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void flatten_init_sequence(const InitCmd* cmds, size_t count, std::vector<uint8_t>& out) {
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for (size_t i = 0; i < count; i++) {
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out.push_back(static_cast<uint8_t>(cmds[i].cmd));
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out.push_back(static_cast<uint8_t>(cmds[i].data_bytes));
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out.push_back(static_cast<uint8_t>(cmds[i].delay_ms));
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const auto* data = static_cast<const uint8_t*>(cmds[i].data);
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for (size_t j = 0; j < cmds[i].data_bytes; j++) {
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out.push_back(data[j]);
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}
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}
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}
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