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authorLinus Torvalds <torvalds@linux-foundation.org>2012-05-24 13:21:51 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2012-05-24 13:21:51 -0400
commitab11ca34eea8fda7a1a9302d86f6ef6108ffd68f (patch)
tree987ec6c263f3dfa4a7a6f9ce4d5ece47cbc12e29 /drivers/input
parentf9369910a6225b8d4892c3f20ae740a711cd5ace (diff)
parent71006fb22b0f5a2045605b3887ee99a0e9adafe4 (diff)
Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab: - some V4L2 API updates needed by embedded devices - DVB API extensions for ATSC-MH delivery system, used in US for mobile TV - new tuners for fc0011/0012/0013 and tua9001 - a new dvb driver for af9033/9035 - a new ATSC-MH frontend (lg2160) - new remote controller keymaps - Removal of a few legacy webcam driver that got replaced by gspca on several kernel versions ago - a new driver for Exynos 4/5 webcams(s5pp fimc-lite) - a new webcam sensor driver (smiapp) - a new video input driver for embedded (sta2x1xx) - several improvements, fixes, cleanups, etc inside the drivers. Manually fix up conflicts due to err() -> dev_err() conversion in drivers/staging/media/easycap/easycap_main.c * 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (484 commits) [media] saa7134-cards: Remove a PCI entry added by mistake [media] radio-sf16fmi: add support for SF16-FMD [media] rc-loopback: remove duplicate line [media] patch for Asus My Cinema PS3-100 (1043:48cd) [media] au0828: Move the Kconfig knob under V4L_USB_DRIVERS [media] em28xx: simple comment fix [media] [resend] radio-sf16fmr2: add PnP support for SF16-FMD2 [media] smiapp: Use v4l2_ctrl_new_int_menu() instead of v4l2_ctrl_new_custom() [media] smiapp: Add support for 8-bit uncompressed formats [media] smiapp: Allow generic quirk registers [media] smiapp: Use non-binning limits if the binning limit is zero [media] smiapp: Initialise rval in smiapp_read_nvm() [media] smiapp: Round minimum pre_pll up rather than down in ip_clk_freq check [media] smiapp: Use 8-bit reads only before identifying the sensor [media] smiapp: Quirk for sensors that only do 8-bit reads [media] smiapp: Pass struct sensor to register writing commands instead of i2c_client [media] smiapp: Allow using external clock from the clock framework [media] zl10353: change .read_snr() to report SNR as a 0.1 dB [media] media: add support to gspca/pac7302.c for 093a:2627 (Genius FaceCam 300) [media] m88rs2000 - only flip bit 2 on reg 0x70 on 16th try ...
Diffstat (limited to 'drivers/input')
-rw-r--r--drivers/input/ff-memless.c3
-rw-r--r--drivers/input/fixp-arith.h87
2 files changed, 1 insertions, 89 deletions
diff --git a/drivers/input/ff-memless.c b/drivers/input/ff-memless.c
index 117a59aaa70..5f558851d64 100644
--- a/drivers/input/ff-memless.c
+++ b/drivers/input/ff-memless.c
@@ -31,8 +31,7 @@
31#include <linux/mutex.h> 31#include <linux/mutex.h>
32#include <linux/spinlock.h> 32#include <linux/spinlock.h>
33#include <linux/jiffies.h> 33#include <linux/jiffies.h>
34 34#include <linux/fixp-arith.h>
35#include "fixp-arith.h"
36 35
37MODULE_LICENSE("GPL"); 36MODULE_LICENSE("GPL");
38MODULE_AUTHOR("Anssi Hannula <anssi.hannula@gmail.com>"); 37MODULE_AUTHOR("Anssi Hannula <anssi.hannula@gmail.com>");
diff --git a/drivers/input/fixp-arith.h b/drivers/input/fixp-arith.h
deleted file mode 100644
index 3089d738232..00000000000
--- a/drivers/input/fixp-arith.h
+++ /dev/null
@@ -1,87 +0,0 @@
1#ifndef _FIXP_ARITH_H
2#define _FIXP_ARITH_H
3
4/*
5 * Simplistic fixed-point arithmetics.
6 * Hmm, I'm probably duplicating some code :(
7 *
8 * Copyright (c) 2002 Johann Deneux
9 */
10
11/*
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
16 *
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 *
26 * Should you need to contact me, the author, you can do so by
27 * e-mail - mail your message to <johann.deneux@gmail.com>
28 */
29
30#include <linux/types.h>
31
32/* The type representing fixed-point values */
33typedef s16 fixp_t;
34
35#define FRAC_N 8
36#define FRAC_MASK ((1<<FRAC_N)-1)
37
38/* Not to be used directly. Use fixp_{cos,sin} */
39static const fixp_t cos_table[46] = {
40 0x0100, 0x00FF, 0x00FF, 0x00FE, 0x00FD, 0x00FC, 0x00FA, 0x00F8,
41 0x00F6, 0x00F3, 0x00F0, 0x00ED, 0x00E9, 0x00E6, 0x00E2, 0x00DD,
42 0x00D9, 0x00D4, 0x00CF, 0x00C9, 0x00C4, 0x00BE, 0x00B8, 0x00B1,
43 0x00AB, 0x00A4, 0x009D, 0x0096, 0x008F, 0x0087, 0x0080, 0x0078,
44 0x0070, 0x0068, 0x005F, 0x0057, 0x004F, 0x0046, 0x003D, 0x0035,
45 0x002C, 0x0023, 0x001A, 0x0011, 0x0008, 0x0000
46};
47
48
49/* a: 123 -> 123.0 */
50static inline fixp_t fixp_new(s16 a)
51{
52 return a<<FRAC_N;
53}
54
55/* a: 0xFFFF -> -1.0
56 0x8000 -> 1.0
57 0x0000 -> 0.0
58*/
59static inline fixp_t fixp_new16(s16 a)
60{
61 return ((s32)a)>>(16-FRAC_N);
62}
63
64static inline fixp_t fixp_cos(unsigned int degrees)
65{
66 int quadrant = (degrees / 90) & 3;
67 unsigned int i = degrees % 90;
68
69 if (quadrant == 1 || quadrant == 3)
70 i = 90 - i;
71
72 i >>= 1;
73
74 return (quadrant == 1 || quadrant == 2)? -cos_table[i] : cos_table[i];
75}
76
77static inline fixp_t fixp_sin(unsigned int degrees)
78{
79 return -fixp_cos(degrees + 90);
80}
81
82static inline fixp_t fixp_mult(fixp_t a, fixp_t b)
83{
84 return ((s32)(a*b))>>FRAC_N;
85}
86
87#endif