From 702422bd2d3f44e454a97ca7054edde84cc18126 Mon Sep 17 00:00:00 2001 From: "R.M. Thomas" Date: Fri, 18 Jun 2010 12:29:49 -0700 Subject: Staging: easycap: add easycap driver This adds the easycap USB video adapter driver to the staging directory. Signed-off-by: Greg Kroah-Hartman --- drivers/staging/easycap/easycap_testcard.c | 392 +++++++++++++++++++++++++++++ 1 file changed, 392 insertions(+) create mode 100644 drivers/staging/easycap/easycap_testcard.c (limited to 'drivers/staging/easycap/easycap_testcard.c') diff --git a/drivers/staging/easycap/easycap_testcard.c b/drivers/staging/easycap/easycap_testcard.c new file mode 100644 index 0000000..3c2ce28 --- /dev/null +++ b/drivers/staging/easycap/easycap_testcard.c @@ -0,0 +1,392 @@ +/****************************************************************************** +* * +* easycap_testcard.c * +* * +******************************************************************************/ +/* + * + * Copyright (C) 2010 R.M. Thomas + * + * + * This is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * The software is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this software; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * +*/ +/*****************************************************************************/ + +#include "easycap.h" +#include "easycap_debug.h" + +/*****************************************************************************/ +#define TESTCARD_BYTESPERLINE (2 * 1440) +void +easycap_testcard(struct easycap *peasycap, int field_fill) +{ +int total; +int y, u, v, r, g, b; +unsigned char uyvy[4]; + +int i1, line, k, m, n, more, much, barwidth; +unsigned char bfbar[TESTCARD_BYTESPERLINE / 8], *p1, *p2; +struct data_buffer *pfield_buffer; + +JOT(8, "%i=field_fill\n", field_fill); + +if ((TESTCARD_BYTESPERLINE / 2) < peasycap->width) { + SAY("ERROR: image is too wide\n"); + return; +} +if (peasycap->width % 16) { + SAY("ERROR: indivisible image width\n"); + return; +} + +total = 0; +barwidth = (2 * peasycap->width) / 8; + +k = field_fill; +m = 0; +n = 0; + +for (line = 0; line < (peasycap->height / 2); line++) { + for (i1 = 0; i1 < 8; i1++) { + r = (i1 * 256)/8; + g = (i1 * 256)/8; + b = (i1 * 256)/8; + + y = 299*r/1000 + 587*g/1000 + 114*b/1000 ; + u = -147*r/1000 - 289*g/1000 + 436*b/1000 ; u = u + 128; + v = 615*r/1000 - 515*g/1000 - 100*b/1000 ; v = v + 128; + + uyvy[0] = 0xFF & u ; + uyvy[1] = 0xFF & y ; + uyvy[2] = 0xFF & v ; + uyvy[3] = 0xFF & y ; + + p1 = &bfbar[0]; + while (p1 < &bfbar[barwidth]) { + *p1++ = uyvy[0] ; + *p1++ = uyvy[1] ; + *p1++ = uyvy[2] ; + *p1++ = uyvy[3] ; + total += 4; + } + + p1 = &bfbar[0]; + more = barwidth; + + while (more) { + if ((FIELD_BUFFER_SIZE/PAGE_SIZE) <= m) { + SAY("ERROR: bad m reached\n"); + return; + } + if (PAGE_SIZE < n) { + SAY("ERROR: bad n reached\n"); return; + } + + if (0 > more) { + SAY("ERROR: internal fault\n"); + return; + } + + much = PAGE_SIZE - n; + if (much > more) + much = more; + pfield_buffer = &peasycap->field_buffer[k][m]; + p2 = pfield_buffer->pgo + n; + memcpy(p2, p1, much); + + p1 += much; + n += much; + more -= much; + if (PAGE_SIZE == n) { + m++; + n = 0; + } + } + } +} + +JOT(8, "%i=total\n", total); +if (total != peasycap->width * peasycap->height) + SAY("ERROR: wrong number of bytes written: %i\n", total); +return; +} +/*****************************************************************************/ +#if defined(EASYCAP_TESTTONE) +/*----------------------------------------------------------------------------- +THE tones[] ARRAY BELOW IS THE OUTPUT OF THIS PROGRAM, +COMPILED gcc -o prog -lm prog.c +- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - +#include +#include + +int main(void); +int +main(void) +{ +int i1, i2, last; +double d1, d2; + +last = 1024 - 1; +d1 = 10.0*3.14159265/1024.0; +printf("int tones[2048] =\n{\n"); +for (i1 = 0; i1 <= last; i1++) + { + d2 = ((double)i1) * d1; + i2 = (int)(16384.0*sin(d2)); + + if (last != i1) + { + printf("%6i, ", i2); printf("%6i, ", i2); + if (!((i1 + 1)%5)) printf("\n"); + } + else + { + printf("%6i, ", i2); printf("%6i\n};\n", i2); + } + } +return(0); +} +-----------------------------------------------------------------------------*/ +int tones[2048] = { + 0, 0, 502, 502, 1004, 1004, 1505, 1505, 2005, 2005, + 2503, 2503, 2998, 2998, 3491, 3491, 3980, 3980, 4466, 4466, + 4948, 4948, 5424, 5424, 5896, 5896, 6362, 6362, 6822, 6822, + 7276, 7276, 7723, 7723, 8162, 8162, 8594, 8594, 9018, 9018, + 9434, 9434, 9840, 9840, 10237, 10237, 10625, 10625, 11002, 11002, + 11370, 11370, 11726, 11726, 12072, 12072, 12406, 12406, 12728, 12728, + 13038, 13038, 13337, 13337, 13622, 13622, 13895, 13895, 14155, 14155, + 14401, 14401, 14634, 14634, 14853, 14853, 15058, 15058, 15249, 15249, + 15426, 15426, 15588, 15588, 15735, 15735, 15868, 15868, 15985, 15985, + 16088, 16088, 16175, 16175, 16248, 16248, 16305, 16305, 16346, 16346, + 16372, 16372, 16383, 16383, 16379, 16379, 16359, 16359, 16323, 16323, + 16272, 16272, 16206, 16206, 16125, 16125, 16028, 16028, 15917, 15917, + 15790, 15790, 15649, 15649, 15492, 15492, 15322, 15322, 15136, 15136, + 14937, 14937, 14723, 14723, 14496, 14496, 14255, 14255, 14001, 14001, + 13733, 13733, 13452, 13452, 13159, 13159, 12854, 12854, 12536, 12536, + 12207, 12207, 11866, 11866, 11513, 11513, 11150, 11150, 10777, 10777, + 10393, 10393, 10000, 10000, 9597, 9597, 9185, 9185, 8765, 8765, + 8336, 8336, 7900, 7900, 7456, 7456, 7005, 7005, 6547, 6547, + 6083, 6083, 5614, 5614, 5139, 5139, 4659, 4659, 4175, 4175, + 3687, 3687, 3196, 3196, 2701, 2701, 2204, 2204, 1705, 1705, + 1205, 1205, 703, 703, 201, 201, -301, -301, -803, -803, + -1305, -1305, -1805, -1805, -2304, -2304, -2801, -2801, -3294, -3294, + -3785, -3785, -4272, -4272, -4756, -4756, -5234, -5234, -5708, -5708, + -6176, -6176, -6639, -6639, -7095, -7095, -7545, -7545, -7988, -7988, + -8423, -8423, -8850, -8850, -9268, -9268, -9679, -9679, -10079, -10079, +-10471, -10471, -10853, -10853, -11224, -11224, -11585, -11585, -11935, -11935, +-12273, -12273, -12600, -12600, -12916, -12916, -13219, -13219, -13510, -13510, +-13788, -13788, -14053, -14053, -14304, -14304, -14543, -14543, -14767, -14767, +-14978, -14978, -15175, -15175, -15357, -15357, -15525, -15525, -15678, -15678, +-15817, -15817, -15940, -15940, -16049, -16049, -16142, -16142, -16221, -16221, +-16284, -16284, -16331, -16331, -16364, -16364, -16381, -16381, -16382, -16382, +-16368, -16368, -16339, -16339, -16294, -16294, -16234, -16234, -16159, -16159, +-16069, -16069, -15963, -15963, -15842, -15842, -15707, -15707, -15557, -15557, +-15392, -15392, -15212, -15212, -15018, -15018, -14810, -14810, -14589, -14589, +-14353, -14353, -14104, -14104, -13842, -13842, -13566, -13566, -13278, -13278, +-12977, -12977, -12665, -12665, -12340, -12340, -12003, -12003, -11656, -11656, +-11297, -11297, -10928, -10928, -10548, -10548, -10159, -10159, -9759, -9759, + -9351, -9351, -8934, -8934, -8509, -8509, -8075, -8075, -7634, -7634, + -7186, -7186, -6731, -6731, -6269, -6269, -5802, -5802, -5329, -5329, + -4852, -4852, -4369, -4369, -3883, -3883, -3393, -3393, -2900, -2900, + -2404, -2404, -1905, -1905, -1405, -1405, -904, -904, -402, -402, + 100, 100, 603, 603, 1105, 1105, 1605, 1605, 2105, 2105, + 2602, 2602, 3097, 3097, 3589, 3589, 4078, 4078, 4563, 4563, + 5043, 5043, 5519, 5519, 5990, 5990, 6455, 6455, 6914, 6914, + 7366, 7366, 7811, 7811, 8249, 8249, 8680, 8680, 9102, 9102, + 9516, 9516, 9920, 9920, 10315, 10315, 10701, 10701, 11077, 11077, + 11442, 11442, 11796, 11796, 12139, 12139, 12471, 12471, 12791, 12791, + 13099, 13099, 13395, 13395, 13678, 13678, 13948, 13948, 14205, 14205, + 14449, 14449, 14679, 14679, 14895, 14895, 15098, 15098, 15286, 15286, + 15459, 15459, 15618, 15618, 15763, 15763, 15892, 15892, 16007, 16007, + 16107, 16107, 16191, 16191, 16260, 16260, 16314, 16314, 16353, 16353, + 16376, 16376, 16384, 16384, 16376, 16376, 16353, 16353, 16314, 16314, + 16260, 16260, 16191, 16191, 16107, 16107, 16007, 16007, 15892, 15892, + 15763, 15763, 15618, 15618, 15459, 15459, 15286, 15286, 15098, 15098, + 14895, 14895, 14679, 14679, 14449, 14449, 14205, 14205, 13948, 13948, + 13678, 13678, 13395, 13395, 13099, 13099, 12791, 12791, 12471, 12471, + 12139, 12139, 11796, 11796, 11442, 11442, 11077, 11077, 10701, 10701, + 10315, 10315, 9920, 9920, 9516, 9516, 9102, 9102, 8680, 8680, + 8249, 8249, 7811, 7811, 7366, 7366, 6914, 6914, 6455, 6455, + 5990, 5990, 5519, 5519, 5043, 5043, 4563, 4563, 4078, 4078, + 3589, 3589, 3097, 3097, 2602, 2602, 2105, 2105, 1605, 1605, + 1105, 1105, 603, 603, 100, 100, -402, -402, -904, -904, + -1405, -1405, -1905, -1905, -2404, -2404, -2900, -2900, -3393, -3393, + -3883, -3883, -4369, -4369, -4852, -4852, -5329, -5329, -5802, -5802, + -6269, -6269, -6731, -6731, -7186, -7186, -7634, -7634, -8075, -8075, + -8509, -8509, -8934, -8934, -9351, -9351, -9759, -9759, -10159, -10159, +-10548, -10548, -10928, -10928, -11297, -11297, -11656, -11656, -12003, -12003, +-12340, -12340, -12665, -12665, -12977, -12977, -13278, -13278, -13566, -13566, +-13842, -13842, -14104, -14104, -14353, -14353, -14589, -14589, -14810, -14810, +-15018, -15018, -15212, -15212, -15392, -15392, -15557, -15557, -15707, -15707, +-15842, -15842, -15963, -15963, -16069, -16069, -16159, -16159, -16234, -16234, +-16294, -16294, -16339, -16339, -16368, -16368, -16382, -16382, -16381, -16381, +-16364, -16364, -16331, -16331, -16284, -16284, -16221, -16221, -16142, -16142, +-16049, -16049, -15940, -15940, -15817, -15817, -15678, -15678, -15525, -15525, +-15357, -15357, -15175, -15175, -14978, -14978, -14767, -14767, -14543, -14543, +-14304, -14304, -14053, -14053, -13788, -13788, -13510, -13510, -13219, -13219, +-12916, -12916, -12600, -12600, -12273, -12273, -11935, -11935, -11585, -11585, +-11224, -11224, -10853, -10853, -10471, -10471, -10079, -10079, -9679, -9679, + -9268, -9268, -8850, -8850, -8423, -8423, -7988, -7988, -7545, -7545, + -7095, -7095, -6639, -6639, -6176, -6176, -5708, -5708, -5234, -5234, + -4756, -4756, -4272, -4272, -3785, -3785, -3294, -3294, -2801, -2801, + -2304, -2304, -1805, -1805, -1305, -1305, -803, -803, -301, -301, + 201, 201, 703, 703, 1205, 1205, 1705, 1705, 2204, 2204, + 2701, 2701, 3196, 3196, 3687, 3687, 4175, 4175, 4659, 4659, + 5139, 5139, 5614, 5614, 6083, 6083, 6547, 6547, 7005, 7005, + 7456, 7456, 7900, 7900, 8336, 8336, 8765, 8765, 9185, 9185, + 9597, 9597, 10000, 10000, 10393, 10393, 10777, 10777, 11150, 11150, + 11513, 11513, 11866, 11866, 12207, 12207, 12536, 12536, 12854, 12854, + 13159, 13159, 13452, 13452, 13733, 13733, 14001, 14001, 14255, 14255, + 14496, 14496, 14723, 14723, 14937, 14937, 15136, 15136, 15322, 15322, + 15492, 15492, 15649, 15649, 15790, 15790, 15917, 15917, 16028, 16028, + 16125, 16125, 16206, 16206, 16272, 16272, 16323, 16323, 16359, 16359, + 16379, 16379, 16383, 16383, 16372, 16372, 16346, 16346, 16305, 16305, + 16248, 16248, 16175, 16175, 16088, 16088, 15985, 15985, 15868, 15868, + 15735, 15735, 15588, 15588, 15426, 15426, 15249, 15249, 15058, 15058, + 14853, 14853, 14634, 14634, 14401, 14401, 14155, 14155, 13895, 13895, + 13622, 13622, 13337, 13337, 13038, 13038, 12728, 12728, 12406, 12406, + 12072, 12072, 11726, 11726, 11370, 11370, 11002, 11002, 10625, 10625, + 10237, 10237, 9840, 9840, 9434, 9434, 9018, 9018, 8594, 8594, + 8162, 8162, 7723, 7723, 7276, 7276, 6822, 6822, 6362, 6362, + 5896, 5896, 5424, 5424, 4948, 4948, 4466, 4466, 3980, 3980, + 3491, 3491, 2998, 2998, 2503, 2503, 2005, 2005, 1505, 1505, + 1004, 1004, 502, 502, 0, 0, -502, -502, -1004, -1004, + -1505, -1505, -2005, -2005, -2503, -2503, -2998, -2998, -3491, -3491, + -3980, -3980, -4466, -4466, -4948, -4948, -5424, -5424, -5896, -5896, + -6362, -6362, -6822, -6822, -7276, -7276, -7723, -7723, -8162, -8162, + -8594, -8594, -9018, -9018, -9434, -9434, -9840, -9840, -10237, -10237, +-10625, -10625, -11002, -11002, -11370, -11370, -11726, -11726, -12072, -12072, +-12406, -12406, -12728, -12728, -13038, -13038, -13337, -13337, -13622, -13622, +-13895, -13895, -14155, -14155, -14401, -14401, -14634, -14634, -14853, -14853, +-15058, -15058, -15249, -15249, -15426, -15426, -15588, -15588, -15735, -15735, +-15868, -15868, -15985, -15985, -16088, -16088, -16175, -16175, -16248, -16248, +-16305, -16305, -16346, -16346, -16372, -16372, -16383, -16383, -16379, -16379, +-16359, -16359, -16323, -16323, -16272, -16272, -16206, -16206, -16125, -16125, +-16028, -16028, -15917, -15917, -15790, -15790, -15649, -15649, -15492, -15492, +-15322, -15322, -15136, -15136, -14937, -14937, -14723, -14723, -14496, -14496, +-14255, -14255, -14001, -14001, -13733, -13733, -13452, -13452, -13159, -13159, +-12854, -12854, -12536, -12536, -12207, -12207, -11866, -11866, -11513, -11513, +-11150, -11150, -10777, -10777, -10393, -10393, -10000, -10000, -9597, -9597, + -9185, -9185, -8765, -8765, -8336, -8336, -7900, -7900, -7456, -7456, + -7005, -7005, -6547, -6547, -6083, -6083, -5614, -5614, -5139, -5139, + -4659, -4659, -4175, -4175, -3687, -3687, -3196, -3196, -2701, -2701, + -2204, -2204, -1705, -1705, -1205, -1205, -703, -703, -201, -201, + 301, 301, 803, 803, 1305, 1305, 1805, 1805, 2304, 2304, + 2801, 2801, 3294, 3294, 3785, 3785, 4272, 4272, 4756, 4756, + 5234, 5234, 5708, 5708, 6176, 6176, 6639, 6639, 7095, 7095, + 7545, 7545, 7988, 7988, 8423, 8423, 8850, 8850, 9268, 9268, + 9679, 9679, 10079, 10079, 10471, 10471, 10853, 10853, 11224, 11224, + 11585, 11585, 11935, 11935, 12273, 12273, 12600, 12600, 12916, 12916, + 13219, 13219, 13510, 13510, 13788, 13788, 14053, 14053, 14304, 14304, + 14543, 14543, 14767, 14767, 14978, 14978, 15175, 15175, 15357, 15357, + 15525, 15525, 15678, 15678, 15817, 15817, 15940, 15940, 16049, 16049, + 16142, 16142, 16221, 16221, 16284, 16284, 16331, 16331, 16364, 16364, + 16381, 16381, 16382, 16382, 16368, 16368, 16339, 16339, 16294, 16294, + 16234, 16234, 16159, 16159, 16069, 16069, 15963, 15963, 15842, 15842, + 15707, 15707, 15557, 15557, 15392, 15392, 15212, 15212, 15018, 15018, + 14810, 14810, 14589, 14589, 14353, 14353, 14104, 14104, 13842, 13842, + 13566, 13566, 13278, 13278, 12977, 12977, 12665, 12665, 12340, 12340, + 12003, 12003, 11656, 11656, 11297, 11297, 10928, 10928, 10548, 10548, + 10159, 10159, 9759, 9759, 9351, 9351, 8934, 8934, 8509, 8509, + 8075, 8075, 7634, 7634, 7186, 7186, 6731, 6731, 6269, 6269, + 5802, 5802, 5329, 5329, 4852, 4852, 4369, 4369, 3883, 3883, + 3393, 3393, 2900, 2900, 2404, 2404, 1905, 1905, 1405, 1405, + 904, 904, 402, 402, -100, -100, -603, -603, -1105, -1105, + -1605, -1605, -2105, -2105, -2602, -2602, -3097, -3097, -3589, -3589, + -4078, -4078, -4563, -4563, -5043, -5043, -5519, -5519, -5990, -5990, + -6455, -6455, -6914, -6914, -7366, -7366, -7811, -7811, -8249, -8249, + -8680, -8680, -9102, -9102, -9516, -9516, -9920, -9920, -10315, -10315, +-10701, -10701, -11077, -11077, -11442, -11442, -11796, -11796, -12139, -12139, 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-4948, + -4466, -4466, -3980, -3980, -3491, -3491, -2998, -2998, -2503, -2503, + -2005, -2005, -1505, -1505, -1004, -1004, -502, -502 +}; +/*****************************************************************************/ +void +easysnd_testtone(struct easycap *peasycap, int audio_fill) +{ +int i1; +unsigned char *p2; +struct data_buffer *paudio_buffer; + +JOT(8, "%i=audio_fill\n", audio_fill); + +paudio_buffer = &peasycap->audio_buffer[audio_fill]; + +p2 = (unsigned char *)(paudio_buffer->pgo); +for (i1 = 0; i1 < PAGE_SIZE; i1 += 4, p2 += 4) { + *p2 = (unsigned char) (0x00FF & tones[i1/2]); + *(p2 + 1) = (unsigned char)((0xFF00 & tones[i1/2]) >> 8); + *(p2 + 2) = (unsigned char) (0x00FF & tones[i1/2 + 1]); + *(p2 + 3) = (unsigned char)((0xFF00 & tones[i1/2 + 1]) >> 8); + } +return; +} +#endif /*EASYCAP_TESTTONE*/ +/*****************************************************************************/ -- cgit v1.1