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dm: Add a demonstration/example driver

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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>
This commit is contained in:
Simon Glass
2014-02-26 15:59:23 -07:00
committed by Tom Rini
parent 0681195977
commit 39f7611fec
10 changed files with 432 additions and 0 deletions
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36
include/dm-demo.h Normal file
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/*
* Copyright (c) 2013 Google, Inc
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __DM_DEMO_H
#define __DM_DEMO_H
#include <dm.h>
/**
* struct dm_demo_pdata - configuration data for demo instance
*
* @colour: Color of the demo
* @sides: Numbers of sides
* @default_char: Default ASCII character to output (65 = 'A')
*/
struct dm_demo_pdata {
const char *colour;
int sides;
int default_char;
};
struct demo_ops {
int (*hello)(struct device *dev, int ch);
int (*status)(struct device *dev, int *status);
};
int demo_hello(struct device *dev, int ch);
int demo_status(struct device *dev, int *status);
int demo_list(void);
int demo_parse_dt(struct device *dev);
#endif