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https://github.com/brain-hackers/u-boot-brain
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39f7611fec
As an example of how to write a uclass and a driver, provide a demo version of each, accessible through the 'demo' command. To use these with driver model, define CONFIG_CMD_DEMO and CONFIG_DM_DEMO. The two demo drivers are enabled with CONFIG_DM_DEMO_SIMPLE and CONFIG_DM_DEMO_SHAPE. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Marek Vasut <marex@denx.de> Signed-off-by: Pavel Herrmann <morpheus.ibis@gmail.com> Signed-off-by: Viktor Křivák <viktor.krivak@gmail.com> Signed-off-by: Tomas Hlavacek <tmshlvck@gmail.com>
48 lines
1009 B
C
48 lines
1009 B
C
/*
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* Copyright (c) 2013 Google, Inc
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*
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* (C) Copyright 2012
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* Pavel Herrmann <morpheus.ibis@gmail.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <dm.h>
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#include <dm-demo.h>
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#include <asm/io.h>
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static int simple_hello(struct device *dev, int ch)
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{
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const struct dm_demo_pdata *pdata = dev_get_platdata(dev);
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printf("Hello from %08x: %s %d\n", map_to_sysmem(dev), pdata->colour,
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pdata->sides);
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return 0;
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}
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static const struct demo_ops simple_ops = {
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.hello = simple_hello,
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};
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static int demo_shape_ofdata_to_platdata(struct device *dev)
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{
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/* Parse the data that is common with all demo devices */
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return demo_parse_dt(dev);
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}
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static const struct device_id demo_shape_id[] = {
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{ "demo-simple", 0 },
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{ },
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};
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U_BOOT_DRIVER(demo_simple_drv) = {
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.name = "demo_simple_drv",
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.of_match = demo_shape_id,
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.id = UCLASS_DEMO,
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.ofdata_to_platdata = demo_shape_ofdata_to_platdata,
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.ops = &simple_ops,
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.platdata_auto_alloc_size = sizeof(struct dm_demo_pdata),
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};
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