linux-kernel - Re: [PATCH 1/1 try#2] [INPUT] keypad driver: Added support for OpenCores Keyboard Controller

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Message-ID: <47A845F7.8030102@hvsistemas.es>
Date:	Tue, 05 Feb 2008 12:18:15 +0100
From:	Javier Herrero <jherrero@...istemas.es>
To:	Vojtech Pavlik <vojtech@...e.cz>
CC:	Bryan Wu <bryan.wu@...log.com>,
	Will Newton <will.newton@...il.com>, dmitry.torokhov@...il.com,
	linux-input@...ey.karlin.mff.cuni.cz, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1 try#2] [INPUT] keypad driver: Added support for	OpenCores
 Keyboard Controller

Dear Vojtech,

I think that a 1:1 mapping between linux keycodes and what keyboard 
sends is right, because the scan code to key code conversion is already 
programmed and done inside the FPGA code.

Best regards,

Javier

Vojtech Pavlik escribió:
> On Thu, Jan 31, 2008 at 01:18:22AM +0800, Bryan Wu wrote:
>
>> +static irqreturn_t opencores_kbd_isr(int irq, void *dev_id)
>> +{
>> +	unsigned char c;
>> +	struct platform_device *pdev = dev_id;
>> +	struct opencores_kbd *opencores_kbd = platform_get_drvdata(pdev);
>> +	struct input_dev *input = opencores_kbd->input;
>> +
>> +	c = readb(opencores_kbd->addr_res->start);
>> +	input_report_key(input, c & 0x7f, c & 0x80 ? 0 : 1);
>> +	input_sync(input);
>> +
>> +	return IRQ_HANDLED;
>> +}
>  
> This looks utterly wrong: It assumes 1:1 mapping between Linux keycodes
> and what the keyboard sends, which I can't believe is the case.
>

-- 
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Javier Herrero                            EMAIL: jherrero@...istemas.com
HV Sistemas S.L.                          PHONE:         +34 949 336 806
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