[deliverable/linux.git] / drivers / gpu / drm / nouveau / nvkm / core / enum.c

/*
 * Copyright (C) 2010 Nouveau Project
 *
 * All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial
 * portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 */
#include <core/enum.h>

const struct nvkm_enum *
nvkm_enum_find(const struct nvkm_enum *en, u32 value)
{
	while (en->name) {
		if (en->value == value)
			return en;
		en++;
	}

	return NULL;
}

void
nvkm_snprintbf(char *data, int size, const struct nvkm_bitfield *bf, u32 value)
{
	bool space = false;
	while (size >= 1 && bf->name) {
		if (value & bf->mask) {
			int this = snprintf(data, size, "%s%s",
					    space ? " " : "", bf->name);
			size -= this;
			data += this;
			space = true;
		}
		bf++;
	}
	data[0] = '\0';
}
Commit	Line	Data
9274f4a9 BS	1	/*
	2	* Copyright (C) 2010 Nouveau Project
	3	*
	4	* All Rights Reserved.
	5	*
	6	* Permission is hereby granted, free of charge, to any person obtaining
	7	* a copy of this software and associated documentation files (the
	8	* "Software"), to deal in the Software without restriction, including
	9	* without limitation the rights to use, copy, modify, merge, publish,
	10	* distribute, sublicense, and/or sell copies of the Software, and to
	11	* permit persons to whom the Software is furnished to do so, subject to
	12	* the following conditions:
	13	*
	14	* The above copyright notice and this permission notice (including the
	15	* next paragraph) shall be included in all copies or substantial
	16	* portions of the Software.
	17	*
	18	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
	19	* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	20	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
	21	* IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
	22	* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
	23	* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
	24	* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
	25	*
	26	*/
9274f4a9 BS	27	#include <core/enum.h>
9274f4a9 BS	28
5025407b BS	29	const struct nvkm_enum *
5025407b BS	30	nvkm_enum_find(const struct nvkm_enum *en, u32 value)
9274f4a9 BS	31	{
	32	while (en->name) {
	33	if (en->value == value)
	34	return en;
	35	en++;
	36	}
	37
	38	return NULL;
	39	}
	40
6594363b BS	41	void
	42	nvkm_snprintbf(char data, int size, const struct nvkm_bitfield bf, u32 value)
	43	{
	44	bool space = false;
	45	while (size >= 1 && bf->name) {
	46	if (value & bf->mask) {
	47	int this = snprintf(data, size, "%s%s",
	48	space ? " " : "", bf->name);
	49	size -= this;
	50	data += this;
	51	space = true;
	52	}
	53	bf++;
	54	}
	55	data[0] = '\0';
	56	}