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| Checks: > | ||
| -*, | ||
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| performance-*, | ||
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| clang-analyzer-*, | ||
| cert-* | ||
| WarningsAsErrors: '*' | ||
| HeaderFilterRegex: '.*' | ||
| FormatStyle: 'file' | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,84 @@ | ||
| //! SPI object | ||
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| const c = @cImport({ | ||
| @cInclude("board.h"); | ||
| @cInclude("miso.h"); | ||
| @cInclude("miso_config.h"); | ||
| }); | ||
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| const freertos = @import("freertos.zig"); | ||
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| const ecode = c.Ecode_t; | ||
| //const spiDrvHandle | ||
| const txferElement = struct { | ||
| status: ecode, // status | ||
| items: isize, // number of items transfered | ||
| }; | ||
|
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| pub fn Spi() type { | ||
| return struct { | ||
| spidrvHandle: c.SPIDRV_HandleData_t, | ||
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| txQueue: freertos.StaticQueue(txferElement, 1), | ||
| rxQueue: freertos.StaticQueue(txferElement, 1), | ||
| //spiDrvHandle: c.SPIDRV_HandleData_t, | ||
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| fn recieve_callback(handle: c.SPIDRV_HandleData_t, buffer: []u8, n: usize) callconv(.C) void { | ||
| var xHigherPriorityTaskWoken: freertos.BaseType_t = freertos.pdFALSE; | ||
| const transfer_status_information = txferElement{ .status = c.ECODE_EMDRV_SPIDRV_OK, .items = n }; | ||
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| // self.xQueueSendFromISR(&transfer_status_information, &xHigherPriorityTaskWoken); | ||
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| freertos.portYIELD_FROM_ISR(xHigherPriorityTaskWoken); | ||
| } | ||
| fn send_callback(handle: c.SPIDRV_HandleData_t, buffer: []u8, n: usize) callconv(.C) void { | ||
| var xHigherPriorityTaskWoken: freertos.BaseType_t = freertos.pdFALSE; | ||
| const transfer_status_information = txferElement{ .status = c.ECODE_EMDRV_SPIDRV_OK, .items = n }; | ||
|
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| // self.xQueueSendFromISR(&transfer_status_information, &xHigherPriorityTaskWoken); | ||
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| freertos.portYIELD_FROM_ISR(xHigherPriorityTaskWoken); | ||
| } | ||
|
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| pub fn init(self: *@This(), spiDrvHandle: c.SPIDRV_HandleData_t) void { | ||
| //self.spidrvHandle = spiDrvHandle; | ||
| //self.txQueue = freertos.StaticQueue(txferElement, 1); | ||
| //self.rxQueue = freertos.StaticQueue(txferElement, 1); | ||
| } | ||
| pub fn deinit(self: *@This()) void { | ||
| //self.txQueue.deinit(); | ||
| //self.rxQueue.deinit(); | ||
| } | ||
|
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| pub fn send(self: *@This(), data: []const u8, timeout_ticks: ?u32) !usize { | ||
| var itemsTransfered: usize = 0; | ||
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| const spiEcode = c.SPIDRV_MTransmit(&self.spiDrvHandle, @ptrCast(data.ptr), @intCast(data.len), send_callback); | ||
| if (spiEcode == c.ECODE_EMDRV_SPIDRV_OK) { | ||
| if (self.txQueue.receive(timeout_ticks)) |val| { | ||
| if (val.status == c.ECODE_EMDRV_SPIDRV_OK) { | ||
| itemsTransfered = val.items; | ||
| } | ||
| } else |err| { | ||
| return err; | ||
| } | ||
| } | ||
| return itemsTransfered; | ||
| } | ||
| pub fn receive(self: *@This(), data: []u8, timeout_ticks: ?u32) ![]u8 { | ||
| var itemsTransfered: usize = 0; | ||
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| const spiEcode = c.SPIDRV_MReceive(&self.spiDrvHandle, @ptrCast(data.ptr), @intCast(data.len), recieve_callback); | ||
| if (spiEcode == c.ECODE_EMDRV_SPIDRV_OK) { | ||
| if (self.rxQueue.receive(timeout_ticks)) |val| { | ||
| if (val.status == c.ECODE_EMDRV_SPIDRV_OK) { | ||
| itemsTransfered = val.items; | ||
| } | ||
| } else |err| { | ||
| return err; | ||
| } | ||
| } | ||
| return data[0..itemsTransfered]; | ||
| } | ||
| }; | ||
| } |