# generated from XKB map pl include common map 0x415 exclam 0x02 shift onesuperior 0x02 altgr exclamdown 0x02 shift altgr at 0x03 shift twosuperior 0x03 altgr oneeighth 0x03 shift altgr numbersign 0x04 shift threesuperior 0x04 altgr sterling 0x04 shift altgr dollar 0x05 shift onequarter 0x05 altgr percent 0x06 shift onehalf 0x06 altgr threeeighths 0x06 shift altgr asciicircum 0x07 shift threequarters 0x07 altgr fiveeighths 0x07 shift altgr ampersand 0x08 shift braceleft 0x08 altgr seveneighths 0x08 shift altgr asterisk 0x09 shift bracketleft 0x09 altgr trademark 0x09 shift altgr parenleft 0x0a shift bracketright 0x0a altgr plusminus 0x0a shift altgr parenright 0x0b shift braceright 0x0b altgr degree 0x0b shift altgr minus 0x0c underscore 0x0c shift backslash 0x0c altgr questiondown 0x0c shift altgr equal 0x0d plus 0x0d shift dead_cedilla 0x0d altgr dead_ogonek 0x0d shift altgr Greek_OMEGA 0x10 shift altgr lstroke 0x11 altgr Lstroke 0x11 shift altgr eogonek 0x12 altgr Eogonek 0x12 shift altgr paragraph 0x13 altgr registered 0x13 shift altgr tslash 0x14 altgr Tslash 0x14 shift altgr leftarrow 0x15 altgr yen 0x15 shift altgr EuroSign 0x16 altgr uparrow 0x16 shift altgr rightarrow 0x17 altgr idotless 0x17 shift altgr oacute 0x18 altgr Oacute 0x18 shift altgr thorn 0x19 altgr THORN 0x19 shift altgr bracketleft 0x1a braceleft 0x1a shift dead_diaeresis 0x1a altgr dead_abovering 0x1a shift altgr bracketright 0x1b braceright 0x1b shift dead_tilde 0x1b altgr dead_macron 0x1b shift altgr aogonek 0x1e altgr Aogonek 0x1e shift altgr sacute 0x1f altgr Sacute 0x1f shift altgr eth 0x20 altgr ETH 0x20 shift altgr dstroke 0x21 altgr ordfeminine 0x21 shift altgr eng 0x22 altgr ENG 0x22 shift altgr hstroke 0x23 altgr Hstroke 0x23 shift altgr kra 0x25 altgr lstroke 0x26 altgr Lstroke 0x26 shift altgr semicolon 0x27 colon 0x27 shift dead_acute 0x27 altgr dead_doubleacute 0x27 shift altgr apostrophe 0x28 quotedbl 0x28 shift dead_circumflex 0x28 altgr dead_caron 0x28 shift altgr grave 0x29 asciitilde 0x29 shift notsign 0x29 altgr backslash 0x2b bar 0x2b shift dead_grave 0x2b altgr dead_breve 0x2b shift altgr zabovedot 0x2c altgr Zabovedot 0x2c shift altgr zacute 0x2d altgr Zacute 0x2d shift altgr cacute 0x2e altgr Cacute 0x2e shift altgr leftdoublequotemark 0x2f altgr grave 0x2f shift altgr rightdoublequotemark 0x30 altgr nacute 0x31 altgr Nacute 0x31 shift altgr mu 0x32 altgr masculine 0x32 shift altgr comma 0x33 less 0x33 shift horizconnector 0x33 altgr multiply 0x33 shift altgr period 0x34 greater 0x34 shift periodcentered 0x34 altgr division 0x34 shift altgr slash 0x35 question 0x35 shift dead_belowdot 0x35 altgr dead_abovedot 0x35 shift altgr ux-3.0.35-kobo/tree/'>root/drivers/gpu/drm/nouveau/nv17_tv_modes.c
blob: 4d1d29f60307da70e10992e8a9e8e41faba107f2 (plain)
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/*
 * Copyright (C) 2009 Francisco Jerez.
 * 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 "drmP.h"
#include "drm_crtc_helper.h"
#include "nouveau_drv.h"
#include "nouveau_encoder.h"
#include "nouveau_crtc.h"
#include "nouveau_hw.h"
#include "nv17_tv.h"

char *nv17_tv_norm_names[NUM_TV_NORMS] = {
	[TV_NORM_PAL] = "PAL",
	[TV_NORM_PAL_M] = "PAL-M",
	[TV_NORM_PAL_N] = "PAL-N",
	[TV_NORM_PAL_NC] = "PAL-Nc",
	[TV_NORM_NTSC_M] = "NTSC-M",
	[TV_NORM_NTSC_J] = "NTSC-J",
	[TV_NORM_HD480I] = "hd480i",
	[TV_NORM_HD480P] = "hd480p",
	[TV_NORM_HD576I] = "hd576i",
	[TV_NORM_HD576P] = "hd576p",
	[TV_NORM_HD720P] = "hd720p",
	[TV_NORM_HD1080I] = "hd1080i"
};

/* TV standard specific parameters */

struct nv17_tv_norm_params nv17_tv_norms[NUM_TV_NORMS] = {
	[TV_NORM_PAL] = { TV_ENC_MODE, {
			.tv_enc_mode = { 720, 576, 50000, {
					0x2a, 0x9, 0x8a, 0xcb, 0x0, 0x0, 0xb, 0x18,
					0x7e, 0x40, 0x8a, 0x35, 0x27, 0x0, 0x34, 0x3,
					0x3e, 0x3, 0x17, 0x21, 0x1b, 0x1b, 0x24, 0x9c,
					0x1, 0x0, 0xf, 0xf, 0x60, 0x5, 0xd3, 0x3,
					0xd3, 0x4, 0xd4, 0x1, 0x2, 0x0, 0xa, 0x5,
					0x0, 0x1a, 0xff, 0x3, 0x18, 0xf, 0x78, 0x0,
					0x0, 0xb4, 0x0, 0x15, 0x49, 0x10, 0x0, 0x9b,
					0xbd, 0x15, 0x5, 0x15, 0x3e, 0x3, 0x0, 0x0
				} } } },

	[TV_NORM_PAL_M] = { TV_ENC_MODE, {
			.tv_enc_mode = { 720, 480, 59940, {
					0x21, 0xe6, 0xef, 0xe3, 0x0, 0x0, 0xb, 0x18,
					0x7e, 0x44, 0x76, 0x32, 0x25, 0x0, 0x3c, 0x0,
					0x3c, 0x0, 0x17, 0x21, 0x1b, 0x1b, 0x24, 0x83,
					0x1, 0x0, 0xf, 0xf, 0x60, 0x5, 0xd3, 0x1,
					0xc5, 0x4, 0xc5, 0x1, 0x2, 0x0, 0xa, 0x5,
					0x0, 0x18, 0xff, 0x3, 0x20, 0xf, 0x78, 0x0,
					0x0, 0xb4, 0x0, 0x15, 0x40, 0x10, 0x0, 0x9c,
					0xc8, 0x15, 0x5, 0x15, 0x3c, 0x0, 0x0, 0x0
				} } } },

	[TV_NORM_PAL_N] = { TV_ENC_MODE, {
			.tv_enc_mode = { 720, 576, 50000, {
					0x2a, 0x9, 0x8a, 0xcb, 0x0, 0x0, 0xb, 0x18,
					0x7e, 0x40, 0x8a, 0x32, 0x25, 0x0, 0x3c, 0x0,
					0x3c, 0x0, 0x17, 0x21, 0x1b, 0x1b, 0x24, 0x9c,
					0x1, 0x0, 0xf, 0xf, 0x60, 0x5, 0xd3, 0x1,
					0xc5, 0x4, 0xc5, 0x1, 0x2, 0x0, 0xa, 0x5,
					0x0, 0x1a, 0xff, 0x3, 0x18, 0xf, 0x78, 0x0,
					0x0, 0xb4, 0x0, 0x15, 0x49, 0x10, 0x0, 0x9b,
					0xbd, 0x15, 0x5, 0x15, 0x3c, 0x0, 0x0, 0x0
				} } } },

	[TV_NORM_PAL_NC] = { TV_ENC_MODE, {
			.tv_enc_mode = { 720, 576, 50000, {
					0x21, 0xf6, 0x94, 0x46, 0x0, 0x0, 0xb, 0x18,
					0x7e, 0x44, 0x8a, 0x35, 0x27, 0x0, 0x34, 0x3,
					0x3e, 0x3, 0x17, 0x21, 0x1b, 0x1b, 0x24, 0x9c,
					0x1, 0x0, 0xf, 0xf, 0x60, 0x5, 0xd3, 0x3,
					0xd3, 0x4, 0xd4, 0x1, 0x2, 0x0, 0xa, 0x5,
					0x0, 0x1a, 0xff, 0x3, 0x18, 0xf, 0x78, 0x0,
					0x0, 0xb4, 0x0, 0x15, 0x49, 0x10, 0x0, 0x9b,
					0xbd, 0x15, 0x5, 0x15, 0x3e, 0x3, 0x0, 0x0
				} } } },

	[TV_NORM_NTSC_M] = { TV_ENC_MODE, {
			.tv_enc_mode = { 720, 480, 59940, {
					0x21, 0xf0, 0x7c, 0x1f, 0x0, 0x0, 0xb, 0x18,
					0x7e, 0x44, 0x76, 0x48, 0x0, 0x0, 0x3c, 0x0,
					0x3c, 0x0, 0x17, 0x21, 0x1b, 0x1b, 0x24, 0x83,
					0x1, 0x0, 0xf, 0xf, 0x60, 0x5, 0xd3, 0x1,
					0xc5, 0x4, 0xc5, 0x1, 0x2, 0x0, 0xa, 0x5,
					0x0, 0x16, 0xff, 0x3, 0x20, 0xf, 0x78, 0x0,
					0x0, 0xb4, 0x0, 0x15, 0x4, 0x10, 0x0, 0x9c,
					0xc8, 0x15, 0x5, 0x15, 0x3c, 0x0, 0x0, 0x0
				} } } },

	[TV_NORM_NTSC_J] = { TV_ENC_MODE, {
			.tv_enc_mode = { 720, 480, 59940, {
					0x21, 0xf0, 0x7c, 0x1f, 0x0, 0x0, 0xb, 0x18,
					0x7e, 0x44, 0x76, 0x48, 0x0, 0x0, 0x32, 0x0,
					0x3c, 0x0, 0x17, 0x21, 0x1b, 0x1b, 0x24, 0x83,
					0x1, 0x0, 0xf, 0xf, 0x60, 0x5, 0xd3, 0x1,
					0xcf, 0x4, 0xcf, 0x1, 0x2, 0x0, 0xa, 0x5,
					0x0, 0x16, 0xff, 0x3, 0x20, 0xf, 0x78, 0x0,
					0x0, 0xb4, 0x0, 0x15, 0x4, 0x10, 0x0, 0xa4,
					0xc8, 0x15, 0x5, 0x15, 0x3c, 0x0, 0x0, 0x0
				} } } },

	[TV_NORM_HD480I] = { TV_ENC_MODE, {
			.tv_enc_mode = { 720, 480, 59940, {
					0x21, 0xf0, 0x7c, 0x1f, 0x0, 0x0, 0xb, 0x18,
					0x7e, 0x44, 0x76, 0x48, 0x0, 0x0, 0x32, 0x0,
					0x3c, 0x0, 0x17, 0x21, 0x1b, 0x1b, 0x24, 0x83,
					0x1, 0x0, 0xf, 0xf, 0x60, 0x5, 0xd3, 0x1,
					0xcf, 0x4, 0xcf, 0x1, 0x2, 0x0, 0xa, 0x5,
					0x0, 0x16, 0xff, 0x3, 0x20, 0xf, 0x78, 0x0,
					0x0, 0xb4, 0x0, 0x15, 0x4, 0x10, 0x0, 0xa4,
					0xc8, 0x15, 0x5, 0x15, 0x3c, 0x0, 0x0, 0x0
				} } } },

	[TV_NORM_HD576I] = { TV_ENC_MODE, {
			.tv_enc_mode = { 720, 576, 50000, {
					0x2a, 0x9, 0x8a, 0xcb, 0x0, 0x0, 0xb, 0x18,
					0x7e, 0x40, 0x8a, 0x35, 0x27, 0x0, 0x34, 0x3,
					0x3e, 0x3, 0x17, 0x21, 0x1b, 0x1b, 0x24, 0x9c,
					0x1, 0x0, 0xf, 0xf, 0x60, 0x5, 0xd3, 0x3,
					0xd3, 0x4, 0xd4, 0x1, 0x2, 0x0, 0xa, 0x5,
					0x0, 0x1a, 0xff, 0x3, 0x18, 0xf, 0x78, 0x0,
					0x0, 0xb4, 0x0, 0x15, 0x49, 0x10, 0x0, 0x9b,
					0xbd, 0x15, 0x5, 0x15, 0x3e, 0x3, 0x0, 0x0
				} } } },


	[TV_NORM_HD480P] = { CTV_ENC_MODE, {
			.ctv_enc_mode = {
				.mode = { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 27000,
						   720, 735, 743, 858, 0, 480, 490, 494, 525, 0,
						   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
				.ctv_regs = { 0x3540000, 0x0, 0x0, 0x314,
					      0x354003a, 0x40000, 0x6f0344, 0x18100000,
					      0x10160004, 0x10060005, 0x1006000c, 0x10060020,
					      0x10060021, 0x140e0022, 0x10060202, 0x1802020a,
					      0x1810020b, 0x10000fff, 0x10000fff, 0x10000fff,
					      0x10000fff, 0x10000fff, 0x10000fff, 0x70,
					      0x3ff0000, 0x57, 0x2e001e, 0x258012c,
					      0xa0aa04ec, 0x30, 0x80960019, 0x12c0300,
					      0x2019, 0x600, 0x32060019, 0x0, 0x0, 0x400
				} } } },

	[TV_NORM_HD576P] = { CTV_ENC_MODE, {
			.ctv_enc_mode = {
				.mode = { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 27000,
						   720, 730, 738, 864, 0, 576, 581, 585, 625, 0,
						   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
				.ctv_regs = { 0x3540000, 0x0, 0x0, 0x314,
					      0x354003a, 0x40000, 0x6f0344, 0x18100000,
					      0x10060001, 0x10060009, 0x10060026, 0x10060027,
					      0x140e0028, 0x10060268, 0x1810026d, 0x10000fff,
					      0x10000fff, 0x10000fff, 0x10000fff, 0x10000fff,
					      0x10000fff, 0x10000fff, 0x10000fff, 0x69,
					      0x3ff0000, 0x57, 0x2e001e, 0x258012c,
					      0xa0aa04ec, 0x30, 0x80960019, 0x12c0300,
					      0x2019, 0x600, 0x32060019, 0x0, 0x0, 0x400
				} } } },

	[TV_NORM_HD720P] = { CTV_ENC_MODE, {
			.ctv_enc_mode = {
				.mode = { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250,
						   1280, 1349, 1357, 1650, 0, 720, 725, 730, 750, 0,
						   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
				.ctv_regs = { 0x1260394, 0x0, 0x0, 0x622,
					      0x66b0021, 0x6004a, 0x1210626, 0x8170000,
					      0x70004, 0x70016, 0x70017, 0x40f0018,
					      0x702e8, 0x81702ed, 0xfff, 0xfff,
					      0xfff, 0xfff, 0xfff, 0xfff,
					      0xfff, 0xfff, 0xfff, 0x0,
					      0x2e40001, 0x58, 0x2e001e, 0x258012c,
					      0xa0aa04ec, 0x30, 0x810c0039, 0x12c0300,
					      0xc0002039, 0x600, 0x32060039, 0x0, 0x0, 0x0
				} } } },

	[TV_NORM_HD1080I] = { CTV_ENC_MODE, {
			.ctv_enc_mode = {
				.mode = { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250,
						   1920, 1961, 2049, 2200, 0, 1080, 1084, 1088, 1125, 0,
						   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC
						   | DRM_MODE_FLAG_INTERLACE) },
				.ctv_regs = { 0xac0420, 0x44c0478, 0x4a4, 0x4fc0868,
					      0x8940028, 0x60054, 0xe80870, 0xbf70000,
					      0xbc70004, 0x70005, 0x70012, 0x70013,
					      0x40f0014, 0x70230, 0xbf70232, 0xbf70233,
					      0x1c70237, 0x70238, 0x70244, 0x70245,
					      0x40f0246, 0x70462, 0x1f70464, 0x0,
					      0x2e40001, 0x58, 0x2e001e, 0x258012c,
					      0xa0aa04ec, 0x30, 0x815f004c, 0x12c0300,
					      0xc000204c, 0x600, 0x3206004c, 0x0, 0x0, 0x0
				} } } }
};

/*
 * The following is some guesswork on how the TV encoder flicker
 * filter/rescaler works:
 *
 * It seems to use some sort of resampling filter, it is controlled
 * through the registers at NV_PTV_HFILTER and NV_PTV_VFILTER, they
 * control the horizontal and vertical stage respectively, there is
 * also NV_PTV_HFILTER2 the blob fills identically to NV_PTV_HFILTER,
 * but they seem to do nothing. A rough guess might be that they could
 * be used to independently control the filtering of each interlaced
 * field, but I don't know how they are enabled. The whole filtering
 * process seems to be disabled with bits 26:27 of PTV_200, but we
 * aren't doing that.
 *
 * The layout of both register sets is the same:
 *
 * A: [BASE+0x18]...[BASE+0x0] [BASE+0x58]..[BASE+0x40]
 * B: [BASE+0x34]...[BASE+0x1c] [BASE+0x74]..[BASE+0x5c]
 *
 * Each coefficient is stored in bits [31],[15:9] in two's complement
 * format. They seem to be some kind of weights used in a low-pass
 * filter. Both A and B coefficients are applied to the 14 nearest
 * samples on each side (Listed from nearest to furthermost.  They
 * roughly cover 2 framebuffer pixels on each side).  They are
 * probably multiplied with some more hardwired weights before being
 * used: B-coefficients are applied the same on both sides,
 * A-coefficients are inverted before being applied to the opposite
 * side.
 *
 * After all the hassle, I got the following formula by empirical
 * means...
 */

#define calc_overscan(o) interpolate(0x100, 0xe1, 0xc1, o)

#define id1 (1LL << 8)
#define id2 (1LL << 16)
#define id3 (1LL << 24)
#define id4 (1LL << 32)
#define id5 (1LL << 48)

static struct filter_params{
	int64_t k1;
	int64_t ki;
	int64_t ki2;
	int64_t ki3;
	int64_t kr;
	int64_t kir;
	int64_t ki2r;
	int64_t ki3r;
	int64_t kf;
	int64_t kif;
	int64_t ki2f;
	int64_t ki3f;
	int64_t krf;
	int64_t kirf;
	int64_t ki2rf;
	int64_t ki3rf;
} fparams[2][4] = {
	/* Horizontal filter parameters */
	{
		{64.311690 * id5, -39.516924 * id5, 6.586143 * id5, 0.000002 * id5,
		 0.051285 * id4, 26.168746 * id4, -4.361449 * id4, -0.000001 * id4,
		 9.308169 * id3, 78.180965 * id3, -13.030158 * id3, -0.000001 * id3,
		 -8.801540 * id1, -46.572890 * id1, 7.762145 * id1, -0.000000 * id1},
		{-44.565569 * id5, -68.081246 * id5, 39.812074 * id5, -4.009316 * id5,
		 29.832207 * id4, 50.047322 * id4, -25.380017 * id4, 2.546422 * id4,
		 104.605622 * id3, 141.908641 * id3, -74.322319 * id3, 7.484316 * id3,
		 -37.081621 * id1, -90.397510 * id1, 42.784229 * id1, -4.289952 * id1},
		{-56.793244 * id5, 31.153584 * id5, -5.192247 * id5, -0.000003 * id5,
		 33.541131 * id4, -34.149302 * id4, 5.691537 * id4, 0.000002 * id4,
		 87.196610 * id3, -88.995169 * id3, 14.832456 * id3, 0.000012 * id3,
		 17.288138 * id1, 71.864786 * id1, -11.977408 * id1, -0.000009 * id1},
		{51.787796 * id5, 21.211771 * id5, -18.993730 * id5, 1.853310 * id5,
		 -41.470726 * id4, -17.775823 * id4, 13.057821 * id4, -1.15823 * id4,
		 -154.235673 * id3, -44.878641 * id3, 40.656077 * id3, -3.695595 * id3,
		 112.201065 * id1, 39.992155 * id1, -25.155714 * id1, 2.113984 * id1},
	},

	/* Vertical filter parameters */
	{
		{67.601979 * id5, 0.428319 * id5, -0.071318 * id5, -0.000012 * id5,
		 -3.402339 * id4, 0.000209 * id4, -0.000092 * id4, 0.000010 * id4,
		 -9.180996 * id3, 6.111270 * id3, -1.024457 * id3, 0.001043 * id3,
		 6.060315 * id1, -0.017425 * id1, 0.007830 * id1, -0.000869 * id1},
		{6.755647 * id5, 5.841348 * id5, 1.469734 * id5, -0.149656 * id5,
		 8.293120 * id4, -1.192888 * id4, -0.947652 * id4, 0.094507 * id4,
		 37.526655 * id3, 10.257875 * id3, -10.823275 * id3, 1.081497 * id3,
		 -2.361928 * id1, -2.059432 * id1, 1.840671 * id1, -0.168100 * id1},
		{-14.780391 * id5, -16.042148 * id5, 2.673692 * id5, -0.000000 * id5,
		 39.541978 * id4, 5.680053 * id4, -0.946676 * id4, 0.000000 * id4,
		 152.994486 * id3, 12.625439 * id3, -2.119579 * id3, 0.002708 * id3,
		 -38.125089 * id1, -0.855880 * id1, 0.155359 * id1, -0.002245 * id1},
		{-27.476193 * id5, -1.454976 * id5, 1.286557 * id5, 0.025346 * id5,
		 20.687300 * id4, 3.014003 * id4, -0.557786 * id4, -0.01311 * id4,
		 60.008737 * id3, -0.738273 * id3, 5.408217 * id3, -0.796798 * id3,
		 -17.296835 * id1, 4.438577 * id1, -2.809420 * id1, 0.385491 * id1},
	}
};

static void tv_setup_filter(struct drm_encoder *encoder)
{
	struct nv17_tv_encoder *tv_enc = to_tv_enc(encoder);
	struct nv17_tv_norm_params *tv_norm = get_tv_norm(encoder);
	struct drm_display_mode *mode = &encoder->crtc->mode;
	uint32_t (*filters[])[4][7] = {&tv_enc->state.hfilter,
				       &tv_enc->state.vfilter};
	int i, j, k;
	int32_t overscan = calc_overscan(tv_enc->overscan);
	int64_t flicker = (tv_enc->flicker - 50) * (id3 / 100);
	uint64_t rs[] = {mode->hdisplay * id3,
			 mode->vdisplay * id3};

	do_div(rs[0], overscan * tv_norm->tv_enc_mode.hdisplay);
	do_div(rs[1], overscan * tv_norm->tv_enc_mode.vdisplay);

	for (k = 0; k < 2; k++) {
		rs[k] = max((int64_t)rs[k], id2);

		for (j = 0; j < 4; j++) {
			struct filter_params *p = &fparams[k][j];

			for (i = 0; i < 7; i++) {
				int64_t c = (p->k1 + p->ki*i + p->ki2*i*i +
					     p->ki3*i*i*i)
					+ (p->kr + p->kir*i + p->ki2r*i*i +
					   p->ki3r*i*i*i) * rs[k]
					+ (p->kf + p->kif*i + p->ki2f*i*i +
					   p->ki3f*i*i*i) * flicker
					+ (p->krf + p->kirf*i + p->ki2rf*i*i +
					   p->ki3rf*i*i*i) * flicker * rs[k];

				(*filters[k])[j][i] = (c + id5/2) >> 39
					& (0x1 << 31 | 0x7f << 9);
			}
		}
	}
}

/* Hardware state saving/restoring */

static void tv_save_filter(struct drm_device *dev, uint32_t base,
			   uint32_t regs[4][7])
{
	int i, j;
	uint32_t offsets[] = { base, base + 0x1c, base + 0x40, base + 0x5c };

	for (i = 0; i < 4; i++) {
		for (j = 0; j < 7; j++)
			regs[i][j] = nv_read_ptv(dev, offsets[i]+4*j);
	}
}

static void tv_load_filter(struct drm_device *dev, uint32_t base,
			   uint32_t regs[4][7])
{
	int i, j;
	uint32_t offsets[] = { base, base + 0x1c, base + 0x40, base + 0x5c };

	for (i = 0; i < 4; i++) {
		for (j = 0; j < 7; j++)
			nv_write_ptv(dev, offsets[i]+4*j, regs[i][j]);
	}
}

void nv17_tv_state_save(struct drm_device *dev, struct nv17_tv_state *state)
{
	int i;

	for (i = 0; i < 0x40; i++)
		state->tv_enc[i] = nv_read_tv_enc(dev, i);

	tv_save_filter(dev, NV_PTV_HFILTER, state->hfilter);
	tv_save_filter(dev, NV_PTV_HFILTER2, state->hfilter2);
	tv_save_filter(dev, NV_PTV_VFILTER, state->vfilter);

	nv_save_ptv(dev, state, 200);
	nv_save_ptv(dev, state, 204);
	nv_save_ptv(dev, state, 208);
	nv_save_ptv(dev, state, 20c);
	nv_save_ptv(dev, state, 304);
	nv_save_ptv(dev, state, 500);
	nv_save_ptv(dev, state, 504);
	nv_save_ptv(dev, state, 508);
	nv_save_ptv(dev, state, 600);
	nv_save_ptv(dev, state, 604);
	nv_save_ptv(dev, state, 608);
	nv_save_ptv(dev, state, 60c);
	nv_save_ptv(dev, state, 610);
	nv_save_ptv(dev, state, 614);
}

void nv17_tv_state_load(struct drm_device *dev, struct nv17_tv_state *state)
{
	int i;

	for (i = 0; i < 0x40; i++)
		nv_write_tv_enc(dev, i, state->tv_enc[i]);

	tv_load_filter(dev, NV_PTV_HFILTER, state->hfilter);
	tv_load_filter(dev, NV_PTV_HFILTER2, state->hfilter2);
	tv_load_filter(dev, NV_PTV_VFILTER, state->vfilter);

	nv_load_ptv(dev, state, 200);
	nv_load_ptv(dev, state, 204);
	nv_load_ptv(dev, state, 208);
	nv_load_ptv(dev, state, 20c);
	nv_load_ptv(dev, state, 304);
	nv_load_ptv(dev, state, 500);
	nv_load_ptv(dev, state, 504);
	nv_load_ptv(dev, state, 508);
	nv_load_ptv(dev, state, 600);
	nv_load_ptv(dev, state, 604);
	nv_load_ptv(dev, state, 608);
	nv_load_ptv(dev, state, 60c);
	nv_load_ptv(dev, state, 610);
	nv_load_ptv(dev, state, 614);

	/* This is required for some settings to kick in. */
	nv_write_tv_enc(dev, 0x3e, 1);
	nv_write_tv_enc(dev, 0x3e, 0);
}

/* Timings similar to the ones the blob sets */

const struct drm_display_mode nv17_tv_modes[] = {
	{ DRM_MODE("320x200", DRM_MODE_TYPE_DRIVER, 0,
		   320, 344, 392, 560, 0, 200, 200, 202, 220, 0,
		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC
		   | DRM_MODE_FLAG_DBLSCAN | DRM_MODE_FLAG_CLKDIV2) },
	{ DRM_MODE("320x240", DRM_MODE_TYPE_DRIVER, 0,
		   320, 344, 392, 560, 0, 240, 240, 246, 263, 0,
		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC
		   | DRM_MODE_FLAG_DBLSCAN | DRM_MODE_FLAG_CLKDIV2) },
	{ DRM_MODE("400x300", DRM_MODE_TYPE_DRIVER, 0,
		   400, 432, 496, 640, 0, 300, 300, 303, 314, 0,
		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC
		   | DRM_MODE_FLAG_DBLSCAN | DRM_MODE_FLAG_CLKDIV2) },
	{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 0,
		   640, 672, 768, 880, 0, 480, 480, 492, 525, 0,
		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
	{ DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 0,
		   720, 752, 872, 960, 0, 480, 480, 493, 525, 0,
		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
	{ DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 0,
		   720, 776, 856, 960, 0, 576, 576, 588, 597, 0,
		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
	{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 0,
		   800, 840, 920, 1040, 0, 600, 600, 604, 618, 0,
		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
	{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 0,
		   1024, 1064, 1200, 1344, 0, 768, 768, 777, 806, 0,
		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
	{}
};

void nv17_tv_update_properties(struct drm_encoder *encoder)
{
	struct drm_device *dev = encoder->dev;
	struct nv17_tv_encoder *tv_enc = to_tv_enc(encoder);
	struct nv17_tv_state *regs = &tv_enc->state;
	struct nv17_tv_norm_params *tv_norm = get_tv_norm(encoder);
	int subconnector = tv_enc->select_subconnector ?
						tv_enc->select_subconnector :
						tv_enc->subconnector;

	switch (subconnector) {
	case DRM_MODE_SUBCONNECTOR_Composite:
	{
		regs->ptv_204 = 0x2;

		/* The composite connector may be found on either pin. */
		if (tv_enc->pin_mask & 0x4)
			regs->ptv_204 |= 0x010000;
		else if (tv_enc->pin_mask & 0x2)
			regs->ptv_204 |= 0x100000;
		else
			regs->ptv_204 |= 0x110000;

		regs->tv_enc[0x7] = 0x10;
		break;
	}
	case DRM_MODE_SUBCONNECTOR_SVIDEO:
		regs->ptv_204 = 0x11012;
		regs->tv_enc[0x7] = 0x18;
		break;

	case DRM_MODE_SUBCONNECTOR_Component:
		regs->ptv_204 = 0x111333;
		regs->tv_enc[0x7] = 0x14;
		break;

	case DRM_MODE_SUBCONNECTOR_SCART:
		regs->ptv_204 = 0x111012;
		regs->tv_enc[0x7] = 0x18;
		break;
	}

	regs->tv_enc[0x20] = interpolate(0, tv_norm->tv_enc_mode.tv_enc[0x20],
					 255, tv_enc->saturation);
	regs->tv_enc[0x22] = interpolate(0, tv_norm->tv_enc_mode.tv_enc[0x22],
					 255, tv_enc->saturation);
	regs->tv_enc[0x25] = tv_enc->hue * 255 / 100;

	nv_load_ptv(dev, regs, 204);
	nv_load_tv_enc(dev, regs, 7);
	nv_load_tv_enc(dev, regs, 20);
	nv_load_tv_enc(dev, regs, 22);
	nv_load_tv_enc(dev, regs, 25);
}

void nv17_tv_update_rescaler(struct drm_encoder *encoder)
{
	struct drm_device *dev = encoder->dev;
	struct nv17_tv_encoder *tv_enc = to_tv_enc(encoder);
	struct nv17_tv_state *regs = &tv_enc->state;

	regs->ptv_208 = 0x40 | (calc_overscan(tv_enc->overscan) << 8);

	tv_setup_filter(encoder);

	nv_load_ptv(dev, regs, 208);
	tv_load_filter(dev, NV_PTV_HFILTER, regs->hfilter);
	tv_load_filter(dev, NV_PTV_HFILTER2, regs->hfilter2);
	tv_load_filter(dev, NV_PTV_VFILTER, regs->vfilter);
}

void nv17_ctv_update_rescaler(struct drm_encoder *encoder)
{
	struct drm_device *dev = encoder->dev;
	struct drm_nouveau_private *dev_priv = dev->dev_private;
	struct nv17_tv_encoder *tv_enc = to_tv_enc(encoder);
	int head = nouveau_crtc(encoder->crtc)->index;
	struct nv04_crtc_reg *regs = &dev_priv->mode_reg.crtc_reg[head];
	struct drm_display_mode *crtc_mode = &encoder->crtc->mode;
	struct drm_display_mode *output_mode =
		&get_tv_norm(encoder)->ctv_enc_mode.mode;
	int overscan, hmargin, vmargin, hratio, vratio;

	/* The rescaler doesn't do the right thing for interlaced modes. */
	if (output_mode->flags & DRM_MODE_FLAG_INTERLACE)
		overscan = 100;
	else
		overscan = tv_enc->overscan;

	hmargin = (output_mode->hdisplay - crtc_mode->hdisplay) / 2;
	vmargin = (output_mode->vdisplay - crtc_mode->vdisplay) / 2;

	hmargin = interpolate(0, min(hmargin, output_mode->hdisplay/20),
			      hmargin, overscan);
	vmargin = interpolate(0, min(vmargin, output_mode->vdisplay/20),
			      vmargin, overscan);

	hratio = crtc_mode->hdisplay * 0x800 /
		(output_mode->hdisplay - 2*hmargin);
	vratio = crtc_mode->vdisplay * 0x800 /
		(output_mode->vdisplay - 2*vmargin) & ~3;

	regs->fp_horiz_regs[FP_VALID_START] = hmargin;
	regs->fp_horiz_regs[FP_VALID_END] = output_mode->hdisplay - hmargin - 1;
	regs->fp_vert_regs[FP_VALID_START] = vmargin;
	regs->fp_vert_regs[FP_VALID_END] = output_mode->vdisplay - vmargin - 1;

	regs->fp_debug_1 = NV_PRAMDAC_FP_DEBUG_1_YSCALE_TESTMODE_ENABLE |
		XLATE(vratio, 0, NV_PRAMDAC_FP_DEBUG_1_YSCALE_VALUE) |
		NV_PRAMDAC_FP_DEBUG_1_XSCALE_TESTMODE_ENABLE |
		XLATE(hratio, 0, NV_PRAMDAC_FP_DEBUG_1_XSCALE_VALUE);

	NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_HVALID_START,
		      regs->fp_horiz_regs[FP_VALID_START]);
	NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_HVALID_END,
		      regs->fp_horiz_regs[FP_VALID_END]);
	NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_VVALID_START,
		      regs->fp_vert_regs[FP_VALID_START]);
	NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_VVALID_END,
		      regs->fp_vert_regs[FP_VALID_END]);
	NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_DEBUG_1, regs->fp_debug_1);
}