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alistair23-linux/drivers/gpu/drm/radeon/radeon_legacy_tv.c
Greg Kroah-Hartman b24413180f License cleanup: add SPDX GPL-2.0 license identifier to files with no license 
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.

By default all files without license information are under the default
license of the kernel, which is GPL version 2.

Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier.  The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.

This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.

How this work was done:

Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
 - file had no licensing information it it.
 - file was a */uapi/* one with no licensing information in it,
 - file was a */uapi/* one with existing licensing information,

Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.

The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne.  Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.

The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed.  Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.

Criteria used to select files for SPDX license identifier tagging was:
 - Files considered eligible had to be source code files.
 - Make and config files were included as candidates if they contained >5
   lines of source
 - File already had some variant of a license header in it (even if <5
   lines).

All documentation files were explicitly excluded.

The following heuristics were used to determine which SPDX license
identifiers to apply.

 - when both scanners couldn't find any license traces, file was
   considered to have no license information in it, and the top level
   COPYING file license applied.

   For non */uapi/* files that summary was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0                                              11139

   and resulted in the first patch in this series.

   If that file was a */uapi/* path one, it was "GPL-2.0 WITH
   Linux-syscall-note" otherwise it was "GPL-2.0".  Results of that was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0 WITH Linux-syscall-note                        930

   and resulted in the second patch in this series.

 - if a file had some form of licensing information in it, and was one
   of the */uapi/* ones, it was denoted with the Linux-syscall-note if
   any GPL family license was found in the file or had no licensing in
   it (per prior point).  Results summary:

   SPDX license identifier                            # files
   ---------------------------------------------------|------
   GPL-2.0 WITH Linux-syscall-note                       270
   GPL-2.0+ WITH Linux-syscall-note                      169
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause)    21
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)    17
   LGPL-2.1+ WITH Linux-syscall-note                      15
   GPL-1.0+ WITH Linux-syscall-note                       14
   ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause)    5
   LGPL-2.0+ WITH Linux-syscall-note                       4
   LGPL-2.1 WITH Linux-syscall-note                        3
   ((GPL-2.0 WITH Linux-syscall-note) OR MIT)              3
   ((GPL-2.0 WITH Linux-syscall-note) AND MIT)             1

   and that resulted in the third patch in this series.

 - when the two scanners agreed on the detected license(s), that became
   the concluded license(s).

 - when there was disagreement between the two scanners (one detected a
   license but the other didn't, or they both detected different
   licenses) a manual inspection of the file occurred.

 - In most cases a manual inspection of the information in the file
   resulted in a clear resolution of the license that should apply (and
   which scanner probably needed to revisit its heuristics).

 - When it was not immediately clear, the license identifier was
   confirmed with lawyers working with the Linux Foundation.

 - If there was any question as to the appropriate license identifier,
   the file was flagged for further research and to be revisited later
   in time.

In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.

Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights.  The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.

Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.

In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.

Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
 - a full scancode scan run, collecting the matched texts, detected
   license ids and scores
 - reviewing anything where there was a license detected (about 500+
   files) to ensure that the applied SPDX license was correct
 - reviewing anything where there was no detection but the patch license
   was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
   SPDX license was correct

This produced a worksheet with 20 files needing minor correction.  This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.

These .csv files were then reviewed by Greg.  Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected.  This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.)  Finally Greg ran the script using the .csv files to
generate the patches.

Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-02 11:10:55 +01:00

925 lines
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// SPDX-License-Identifier: GPL-2.0
#include <drm/drmP.h>
#include <drm/drm_crtc_helper.h>
#include "radeon.h"
/*
* Integrated TV out support based on the GATOS code by
* Federico Ulivi <fulivi@lycos.com>
*/
/*
* Limits of h/v positions (hPos & vPos)
*/
#define MAX_H_POSITION 5 /* Range: [-5..5], negative is on the left, 0 is default, positive is on the right */
#define MAX_V_POSITION 5 /* Range: [-5..5], negative is up, 0 is default, positive is down */
/*
* Unit for hPos (in TV clock periods)
*/
#define H_POS_UNIT 10
/*
* Indexes in h. code timing table for horizontal line position adjustment
*/
#define H_TABLE_POS1 6
#define H_TABLE_POS2 8
/*
* Limits of hor. size (hSize)
*/
#define MAX_H_SIZE 5 /* Range: [-5..5], negative is smaller, positive is larger */
/* tv standard constants */
#define NTSC_TV_CLOCK_T 233
#define NTSC_TV_VFTOTAL 1
#define NTSC_TV_LINES_PER_FRAME 525
#define NTSC_TV_ZERO_H_SIZE 479166
#define NTSC_TV_H_SIZE_UNIT 9478
#define PAL_TV_CLOCK_T 188
#define PAL_TV_VFTOTAL 3
#define PAL_TV_LINES_PER_FRAME 625
#define PAL_TV_ZERO_H_SIZE 473200
#define PAL_TV_H_SIZE_UNIT 9360
/* tv pll setting for 27 mhz ref clk */
#define NTSC_TV_PLL_M_27 22
#define NTSC_TV_PLL_N_27 175
#define NTSC_TV_PLL_P_27 5
#define PAL_TV_PLL_M_27 113
#define PAL_TV_PLL_N_27 668
#define PAL_TV_PLL_P_27 3
/* tv pll setting for 14 mhz ref clk */
#define NTSC_TV_PLL_M_14 33
#define NTSC_TV_PLL_N_14 693
#define NTSC_TV_PLL_P_14 7
#define PAL_TV_PLL_M_14 19
#define PAL_TV_PLL_N_14 353
#define PAL_TV_PLL_P_14 5
#define VERT_LEAD_IN_LINES 2
#define FRAC_BITS 0xe
#define FRAC_MASK 0x3fff
struct radeon_tv_mode_constants {
uint16_t hor_resolution;
uint16_t ver_resolution;
enum radeon_tv_std standard;
uint16_t hor_total;
uint16_t ver_total;
uint16_t hor_start;
uint16_t hor_syncstart;
uint16_t ver_syncstart;
unsigned def_restart;
uint16_t crtcPLL_N;
uint8_t crtcPLL_M;
uint8_t crtcPLL_post_div;
unsigned pix_to_tv;
};
static const uint16_t hor_timing_NTSC[MAX_H_CODE_TIMING_LEN] = {
0x0007,
0x003f,
0x0263,
0x0a24,
0x2a6b,
0x0a36,
0x126d, /* H_TABLE_POS1 */
0x1bfe,
0x1a8f, /* H_TABLE_POS2 */
0x1ec7,
0x3863,
0x1bfe,
0x1bfe,
0x1a2a,
0x1e95,
0x0e31,
0x201b,
0
};
static const uint16_t vert_timing_NTSC[MAX_V_CODE_TIMING_LEN] = {
0x2001,
0x200d,
0x1006,
0x0c06,
0x1006,
0x1818,
0x21e3,
0x1006,
0x0c06,
0x1006,
0x1817,
0x21d4,
0x0002,
0
};
static const uint16_t hor_timing_PAL[MAX_H_CODE_TIMING_LEN] = {
0x0007,
0x0058,
0x027c,
0x0a31,
0x2a77,
0x0a95,
0x124f, /* H_TABLE_POS1 */
0x1bfe,
0x1b22, /* H_TABLE_POS2 */
0x1ef9,
0x387c,
0x1bfe,
0x1bfe,
0x1b31,
0x1eb5,
0x0e43,
0x201b,
0
};
static const uint16_t vert_timing_PAL[MAX_V_CODE_TIMING_LEN] = {
0x2001,
0x200c,
0x1005,
0x0c05,
0x1005,
0x1401,
0x1821,
0x2240,
0x1005,
0x0c05,
0x1005,
0x1401,
0x1822,
0x2230,
0x0002,
0
};
/**********************************************************************
*
* availableModes
*
* Table of all allowed modes for tv output
*
**********************************************************************/
static const struct radeon_tv_mode_constants available_tv_modes[] = {
{ /* NTSC timing for 27 Mhz ref clk */
800, /* horResolution */
600, /* verResolution */
TV_STD_NTSC, /* standard */
990, /* horTotal */
740, /* verTotal */
813, /* horStart */
824, /* horSyncStart */
632, /* verSyncStart */
625592, /* defRestart */
592, /* crtcPLL_N */
91, /* crtcPLL_M */
4, /* crtcPLL_postDiv */
1022, /* pixToTV */
},
{ /* PAL timing for 27 Mhz ref clk */
800, /* horResolution */
600, /* verResolution */
TV_STD_PAL, /* standard */
1144, /* horTotal */
706, /* verTotal */
812, /* horStart */
824, /* horSyncStart */
669, /* verSyncStart */
696700, /* defRestart */
1382, /* crtcPLL_N */
231, /* crtcPLL_M */
4, /* crtcPLL_postDiv */
759, /* pixToTV */
},
{ /* NTSC timing for 14 Mhz ref clk */
800, /* horResolution */
600, /* verResolution */
TV_STD_NTSC, /* standard */
1018, /* horTotal */
727, /* verTotal */
813, /* horStart */
840, /* horSyncStart */
633, /* verSyncStart */
630627, /* defRestart */
347, /* crtcPLL_N */
14, /* crtcPLL_M */
8, /* crtcPLL_postDiv */
1022, /* pixToTV */
},
{ /* PAL timing for 14 Mhz ref clk */
800, /* horResolution */
600, /* verResolution */
TV_STD_PAL, /* standard */
1131, /* horTotal */
742, /* verTotal */
813, /* horStart */
840, /* horSyncStart */
633, /* verSyncStart */
708369, /* defRestart */
211, /* crtcPLL_N */
9, /* crtcPLL_M */
8, /* crtcPLL_postDiv */
759, /* pixToTV */
},
};
#define N_AVAILABLE_MODES ARRAY_SIZE(available_tv_modes)
static const struct radeon_tv_mode_constants *radeon_legacy_tv_get_std_mode(struct radeon_encoder *radeon_encoder,
uint16_t *pll_ref_freq)
{
struct drm_device *dev = radeon_encoder->base.dev;
struct radeon_device *rdev = dev->dev_private;
struct radeon_crtc *radeon_crtc;
struct radeon_encoder_tv_dac *tv_dac = radeon_encoder->enc_priv;
const struct radeon_tv_mode_constants *const_ptr;
struct radeon_pll *pll;
radeon_crtc = to_radeon_crtc(radeon_encoder->base.crtc);
if (radeon_crtc->crtc_id == 1)
pll = &rdev->clock.p2pll;
else
pll = &rdev->clock.p1pll;
if (pll_ref_freq)
*pll_ref_freq = pll->reference_freq;
if (tv_dac->tv_std == TV_STD_NTSC ||
tv_dac->tv_std == TV_STD_NTSC_J ||
tv_dac->tv_std == TV_STD_PAL_M) {
if (pll->reference_freq == 2700)
const_ptr = &available_tv_modes[0];
else
const_ptr = &available_tv_modes[2];
} else {
if (pll->reference_freq == 2700)
const_ptr = &available_tv_modes[1];
else
const_ptr = &available_tv_modes[3];
}
return const_ptr;
}
static long YCOEF_value[5] = { 2, 2, 0, 4, 0 };
static long YCOEF_EN_value[5] = { 1, 1, 0, 1, 0 };
static long SLOPE_value[5] = { 1, 2, 2, 4, 8 };
static long SLOPE_limit[5] = { 6, 5, 4, 3, 2 };
static void radeon_wait_pll_lock(struct drm_encoder *encoder, unsigned n_tests,
unsigned n_wait_loops, unsigned cnt_threshold)
{
struct drm_device *dev = encoder->dev;
struct radeon_device *rdev = dev->dev_private;
uint32_t save_pll_test;
unsigned int i, j;
WREG32(RADEON_TEST_DEBUG_MUX, (RREG32(RADEON_TEST_DEBUG_MUX) & 0xffff60ff) | 0x100);
save_pll_test = RREG32_PLL(RADEON_PLL_TEST_CNTL);
WREG32_PLL(RADEON_PLL_TEST_CNTL, save_pll_test & ~RADEON_PLL_MASK_READ_B);
WREG8(RADEON_CLOCK_CNTL_INDEX, RADEON_PLL_TEST_CNTL);
for (i = 0; i < n_tests; i++) {
WREG8(RADEON_CLOCK_CNTL_DATA + 3, 0);
for (j = 0; j < n_wait_loops; j++)
if (RREG8(RADEON_CLOCK_CNTL_DATA + 3) >= cnt_threshold)
break;
}
WREG32_PLL(RADEON_PLL_TEST_CNTL, save_pll_test);
WREG32(RADEON_TEST_DEBUG_MUX, RREG32(RADEON_TEST_DEBUG_MUX) & 0xffffe0ff);
}
static void radeon_legacy_tv_write_fifo(struct radeon_encoder *radeon_encoder,
uint16_t addr, uint32_t value)
{
struct drm_device *dev = radeon_encoder->base.dev;
struct radeon_device *rdev = dev->dev_private;
uint32_t tmp;
int i = 0;
WREG32(RADEON_TV_HOST_WRITE_DATA, value);
WREG32(RADEON_TV_HOST_RD_WT_CNTL, addr);
WREG32(RADEON_TV_HOST_RD_WT_CNTL, addr | RADEON_HOST_FIFO_WT);
do {
tmp = RREG32(RADEON_TV_HOST_RD_WT_CNTL);
if ((tmp & RADEON_HOST_FIFO_WT_ACK) == 0)
break;
i++;
} while (i < 10000);
WREG32(RADEON_TV_HOST_RD_WT_CNTL, 0);
}
#if 0 /* included for completeness */
static uint32_t radeon_legacy_tv_read_fifo(struct radeon_encoder *radeon_encoder, uint16_t addr)
{
struct drm_device *dev = radeon_encoder->base.dev;
struct radeon_device *rdev = dev->dev_private;
uint32_t tmp;
int i = 0;
WREG32(RADEON_TV_HOST_RD_WT_CNTL, addr);
WREG32(RADEON_TV_HOST_RD_WT_CNTL, addr | RADEON_HOST_FIFO_RD);
do {
tmp = RREG32(RADEON_TV_HOST_RD_WT_CNTL);
if ((tmp & RADEON_HOST_FIFO_RD_ACK) == 0)
break;
i++;
} while (i < 10000);
WREG32(RADEON_TV_HOST_RD_WT_CNTL, 0);
return RREG32(RADEON_TV_HOST_READ_DATA);
}
#endif
static uint16_t radeon_get_htiming_tables_addr(uint32_t tv_uv_adr)
{
uint16_t h_table;
switch ((tv_uv_adr & RADEON_HCODE_TABLE_SEL_MASK) >> RADEON_HCODE_TABLE_SEL_SHIFT) {
case 0:
h_table = RADEON_TV_MAX_FIFO_ADDR_INTERNAL;
break;
case 1:
h_table = ((tv_uv_adr & RADEON_TABLE1_BOT_ADR_MASK) >> RADEON_TABLE1_BOT_ADR_SHIFT) * 2;
break;
case 2:
h_table = ((tv_uv_adr & RADEON_TABLE3_TOP_ADR_MASK) >> RADEON_TABLE3_TOP_ADR_SHIFT) * 2;
break;
default:
h_table = 0;
break;
}
return h_table;
}
static uint16_t radeon_get_vtiming_tables_addr(uint32_t tv_uv_adr)
{
uint16_t v_table;
switch ((tv_uv_adr & RADEON_VCODE_TABLE_SEL_MASK) >> RADEON_VCODE_TABLE_SEL_SHIFT) {
case 0:
v_table = ((tv_uv_adr & RADEON_MAX_UV_ADR_MASK) >> RADEON_MAX_UV_ADR_SHIFT) * 2 + 1;
break;
case 1:
v_table = ((tv_uv_adr & RADEON_TABLE1_BOT_ADR_MASK) >> RADEON_TABLE1_BOT_ADR_SHIFT) * 2 + 1;
break;
case 2:
v_table = ((tv_uv_adr & RADEON_TABLE3_TOP_ADR_MASK) >> RADEON_TABLE3_TOP_ADR_SHIFT) * 2 + 1;
break;
default:
v_table = 0;
break;
}
return v_table;
}
static void radeon_restore_tv_timing_tables(struct radeon_encoder *radeon_encoder)
{
struct drm_device *dev = radeon_encoder->base.dev;
struct radeon_device *rdev = dev->dev_private;
struct radeon_encoder_tv_dac *tv_dac = radeon_encoder->enc_priv;
uint16_t h_table, v_table;
uint32_t tmp;
int i;
WREG32(RADEON_TV_UV_ADR, tv_dac->tv.tv_uv_adr);
h_table = radeon_get_htiming_tables_addr(tv_dac->tv.tv_uv_adr);
v_table = radeon_get_vtiming_tables_addr(tv_dac->tv.tv_uv_adr);
for (i = 0; i < MAX_H_CODE_TIMING_LEN; i += 2, h_table--) {
tmp = ((uint32_t)tv_dac->tv.h_code_timing[i] << 14) | ((uint32_t)tv_dac->tv.h_code_timing[i+1]);
radeon_legacy_tv_write_fifo(radeon_encoder, h_table, tmp);
if (tv_dac->tv.h_code_timing[i] == 0 || tv_dac->tv.h_code_timing[i + 1] == 0)
break;
}
for (i = 0; i < MAX_V_CODE_TIMING_LEN; i += 2, v_table++) {
tmp = ((uint32_t)tv_dac->tv.v_code_timing[i+1] << 14) | ((uint32_t)tv_dac->tv.v_code_timing[i]);
radeon_legacy_tv_write_fifo(radeon_encoder, v_table, tmp);
if (tv_dac->tv.v_code_timing[i] == 0 || tv_dac->tv.v_code_timing[i + 1] == 0)
break;
}
}
static void radeon_legacy_write_tv_restarts(struct radeon_encoder *radeon_encoder)
{
struct drm_device *dev = radeon_encoder->base.dev;
struct radeon_device *rdev = dev->dev_private;
struct radeon_encoder_tv_dac *tv_dac = radeon_encoder->enc_priv;
WREG32(RADEON_TV_FRESTART, tv_dac->tv.frestart);
WREG32(RADEON_TV_HRESTART, tv_dac->tv.hrestart);
WREG32(RADEON_TV_VRESTART, tv_dac->tv.vrestart);
}
static bool radeon_legacy_tv_init_restarts(struct drm_encoder *encoder)
{
struct drm_device *dev = encoder->dev;
struct radeon_device *rdev = dev->dev_private;
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
struct radeon_encoder_tv_dac *tv_dac = radeon_encoder->enc_priv;
struct radeon_crtc *radeon_crtc;
int restart;
unsigned int h_total, v_total, f_total;
int v_offset, h_offset;
u16 p1, p2, h_inc;
bool h_changed;
const struct radeon_tv_mode_constants *const_ptr;
struct radeon_pll *pll;
radeon_crtc = to_radeon_crtc(radeon_encoder->base.crtc);
if (radeon_crtc->crtc_id == 1)
pll = &rdev->clock.p2pll;
else
pll = &rdev->clock.p1pll;
const_ptr = radeon_legacy_tv_get_std_mode(radeon_encoder, NULL);
if (!const_ptr)
return false;
h_total = const_ptr->hor_total;
v_total = const_ptr->ver_total;
if (tv_dac->tv_std == TV_STD_NTSC ||
tv_dac->tv_std == TV_STD_NTSC_J ||
tv_dac->tv_std == TV_STD_PAL_M ||
tv_dac->tv_std == TV_STD_PAL_60)
f_total = NTSC_TV_VFTOTAL + 1;
else
f_total = PAL_TV_VFTOTAL + 1;
/* adjust positions 1&2 in hor. cod timing table */
h_offset = tv_dac->h_pos * H_POS_UNIT;
if (tv_dac->tv_std == TV_STD_NTSC ||
tv_dac->tv_std == TV_STD_NTSC_J ||
tv_dac->tv_std == TV_STD_PAL_M) {
h_offset -= 50;
p1 = hor_timing_NTSC[H_TABLE_POS1];
p2 = hor_timing_NTSC[H_TABLE_POS2];
} else {
p1 = hor_timing_PAL[H_TABLE_POS1];
p2 = hor_timing_PAL[H_TABLE_POS2];
}
p1 = (u16)((int)p1 + h_offset);
p2 = (u16)((int)p2 - h_offset);
h_changed = (p1 != tv_dac->tv.h_code_timing[H_TABLE_POS1] ||
p2 != tv_dac->tv.h_code_timing[H_TABLE_POS2]);
tv_dac->tv.h_code_timing[H_TABLE_POS1] = p1;
tv_dac->tv.h_code_timing[H_TABLE_POS2] = p2;
/* Convert hOffset from n. of TV clock periods to n. of CRTC clock periods (CRTC pixels) */
h_offset = (h_offset * (int)(const_ptr->pix_to_tv)) / 1000;
/* adjust restart */
restart = const_ptr->def_restart;
/*
* convert v_pos TV lines to n. of CRTC pixels
*/
if (tv_dac->tv_std == TV_STD_NTSC ||
tv_dac->tv_std == TV_STD_NTSC_J ||
tv_dac->tv_std == TV_STD_PAL_M ||
tv_dac->tv_std == TV_STD_PAL_60)
v_offset = ((int)(v_total * h_total) * 2 * tv_dac->v_pos) / (int)(NTSC_TV_LINES_PER_FRAME);
else
v_offset = ((int)(v_total * h_total) * 2 * tv_dac->v_pos) / (int)(PAL_TV_LINES_PER_FRAME);
restart -= v_offset + h_offset;
DRM_DEBUG_KMS("compute_restarts: def = %u h = %d v = %d, p1 = %04x, p2 = %04x, restart = %d\n",
const_ptr->def_restart, tv_dac->h_pos, tv_dac->v_pos, p1, p2, restart);
tv_dac->tv.hrestart = restart % h_total;
restart /= h_total;
tv_dac->tv.vrestart = restart % v_total;
restart /= v_total;
tv_dac->tv.frestart = restart % f_total;
DRM_DEBUG_KMS("compute_restart: F/H/V=%u,%u,%u\n",
(unsigned)tv_dac->tv.frestart,
(unsigned)tv_dac->tv.vrestart,
(unsigned)tv_dac->tv.hrestart);
/* compute h_inc from hsize */
if (tv_dac->tv_std == TV_STD_NTSC ||
tv_dac->tv_std == TV_STD_NTSC_J ||
tv_dac->tv_std == TV_STD_PAL_M)
h_inc = (u16)((int)(const_ptr->hor_resolution * 4096 * NTSC_TV_CLOCK_T) /
(tv_dac->h_size * (int)(NTSC_TV_H_SIZE_UNIT) + (int)(NTSC_TV_ZERO_H_SIZE)));
else
h_inc = (u16)((int)(const_ptr->hor_resolution * 4096 * PAL_TV_CLOCK_T) /
(tv_dac->h_size * (int)(PAL_TV_H_SIZE_UNIT) + (int)(PAL_TV_ZERO_H_SIZE)));
tv_dac->tv.timing_cntl = (tv_dac->tv.timing_cntl & ~RADEON_H_INC_MASK) |
((u32)h_inc << RADEON_H_INC_SHIFT);
DRM_DEBUG_KMS("compute_restart: h_size = %d h_inc = %d\n", tv_dac->h_size, h_inc);
return h_changed;
}
void radeon_legacy_tv_mode_set(struct drm_encoder *encoder,
struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode)
{
struct drm_device *dev = encoder->dev;
struct radeon_device *rdev = dev->dev_private;
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
struct radeon_encoder_tv_dac *tv_dac = radeon_encoder->enc_priv;
const struct radeon_tv_mode_constants *const_ptr;
struct radeon_crtc *radeon_crtc;
int i;
uint16_t pll_ref_freq;
uint32_t vert_space, flicker_removal, tmp;
uint32_t tv_master_cntl, tv_rgb_cntl, tv_dac_cntl;
uint32_t tv_modulator_cntl1, tv_modulator_cntl2;
uint32_t tv_vscaler_cntl1, tv_vscaler_cntl2;
uint32_t tv_pll_cntl, tv_pll_cntl1, tv_ftotal;
uint32_t tv_y_fall_cntl, tv_y_rise_cntl, tv_y_saw_tooth_cntl;
uint32_t m, n, p;
const uint16_t *hor_timing;
const uint16_t *vert_timing;
const_ptr = radeon_legacy_tv_get_std_mode(radeon_encoder, &pll_ref_freq);
if (!const_ptr)
return;
radeon_crtc = to_radeon_crtc(encoder->crtc);
tv_master_cntl = (RADEON_VIN_ASYNC_RST |
RADEON_CRT_FIFO_CE_EN |
RADEON_TV_FIFO_CE_EN |
RADEON_TV_ON);
if (!ASIC_IS_R300(rdev))
tv_master_cntl |= RADEON_TVCLK_ALWAYS_ONb;
if (tv_dac->tv_std == TV_STD_NTSC ||
tv_dac->tv_std == TV_STD_NTSC_J)
tv_master_cntl |= RADEON_RESTART_PHASE_FIX;
tv_modulator_cntl1 = (RADEON_SLEW_RATE_LIMIT |
RADEON_SYNC_TIP_LEVEL |
RADEON_YFLT_EN |
RADEON_UVFLT_EN |
(6 << RADEON_CY_FILT_BLEND_SHIFT));
if (tv_dac->tv_std == TV_STD_NTSC ||
tv_dac->tv_std == TV_STD_NTSC_J) {
tv_modulator_cntl1 |= (0x46 << RADEON_SET_UP_LEVEL_SHIFT) |
(0x3b << RADEON_BLANK_LEVEL_SHIFT);
tv_modulator_cntl2 = (-111 & RADEON_TV_U_BURST_LEVEL_MASK) |
((0 & RADEON_TV_V_BURST_LEVEL_MASK) << RADEON_TV_V_BURST_LEVEL_SHIFT);
} else if (tv_dac->tv_std == TV_STD_SCART_PAL) {
tv_modulator_cntl1 |= RADEON_ALT_PHASE_EN;
tv_modulator_cntl2 = (0 & RADEON_TV_U_BURST_LEVEL_MASK) |
((0 & RADEON_TV_V_BURST_LEVEL_MASK) << RADEON_TV_V_BURST_LEVEL_SHIFT);
} else {
tv_modulator_cntl1 |= RADEON_ALT_PHASE_EN |
(0x3b << RADEON_SET_UP_LEVEL_SHIFT) |
(0x3b << RADEON_BLANK_LEVEL_SHIFT);
tv_modulator_cntl2 = (-78 & RADEON_TV_U_BURST_LEVEL_MASK) |
((62 & RADEON_TV_V_BURST_LEVEL_MASK) << RADEON_TV_V_BURST_LEVEL_SHIFT);
}
tv_rgb_cntl = (RADEON_RGB_DITHER_EN
| RADEON_TVOUT_SCALE_EN
| (0x0b << RADEON_UVRAM_READ_MARGIN_SHIFT)
| (0x07 << RADEON_FIFORAM_FFMACRO_READ_MARGIN_SHIFT)
| RADEON_RGB_ATTEN_SEL(0x3)
| RADEON_RGB_ATTEN_VAL(0xc));
if (radeon_crtc->crtc_id == 1)
tv_rgb_cntl |= RADEON_RGB_SRC_SEL_CRTC2;
else {
if (radeon_crtc->rmx_type != RMX_OFF)
tv_rgb_cntl |= RADEON_RGB_SRC_SEL_RMX;
else
tv_rgb_cntl |= RADEON_RGB_SRC_SEL_CRTC1;
}
if (tv_dac->tv_std == TV_STD_NTSC ||
tv_dac->tv_std == TV_STD_NTSC_J ||
tv_dac->tv_std == TV_STD_PAL_M ||
tv_dac->tv_std == TV_STD_PAL_60)
vert_space = const_ptr->ver_total * 2 * 10000 / NTSC_TV_LINES_PER_FRAME;
else
vert_space = const_ptr->ver_total * 2 * 10000 / PAL_TV_LINES_PER_FRAME;
tmp = RREG32(RADEON_TV_VSCALER_CNTL1);
tmp &= 0xe3ff0000;
tmp |= (vert_space * (1 << FRAC_BITS) / 10000);
tv_vscaler_cntl1 = tmp;
if (pll_ref_freq == 2700)
tv_vscaler_cntl1 |= RADEON_RESTART_FIELD;
if (const_ptr->hor_resolution == 1024)
tv_vscaler_cntl1 |= (4 << RADEON_Y_DEL_W_SIG_SHIFT);
else
tv_vscaler_cntl1 |= (2 << RADEON_Y_DEL_W_SIG_SHIFT);
/* scale up for int divide */
tmp = const_ptr->ver_total * 2 * 1000;
if (tv_dac->tv_std == TV_STD_NTSC ||
tv_dac->tv_std == TV_STD_NTSC_J ||
tv_dac->tv_std == TV_STD_PAL_M ||
tv_dac->tv_std == TV_STD_PAL_60) {
tmp /= NTSC_TV_LINES_PER_FRAME;
} else {
tmp /= PAL_TV_LINES_PER_FRAME;
}
flicker_removal = (tmp + 500) / 1000;
if (flicker_removal < 3)
flicker_removal = 3;
for (i = 0; i < ARRAY_SIZE(SLOPE_limit); ++i) {
if (flicker_removal == SLOPE_limit[i])
break;
}
tv_y_saw_tooth_cntl = (vert_space * SLOPE_value[i] * (1 << (FRAC_BITS - 1)) +
5001) / 10000 / 8 | ((SLOPE_value[i] *
(1 << (FRAC_BITS - 1)) / 8) << 16);
tv_y_fall_cntl =
(YCOEF_EN_value[i] << 17) | ((YCOEF_value[i] * (1 << 8) / 8) << 24) |
RADEON_Y_FALL_PING_PONG | (272 * SLOPE_value[i] / 8) * (1 << (FRAC_BITS - 1)) /
1024;
tv_y_rise_cntl = RADEON_Y_RISE_PING_PONG|
(flicker_removal * 1024 - 272) * SLOPE_value[i] / 8 * (1 << (FRAC_BITS - 1)) / 1024;
tv_vscaler_cntl2 = RREG32(RADEON_TV_VSCALER_CNTL2) & 0x00fffff0;
tv_vscaler_cntl2 |= (0x10 << 24) |
RADEON_DITHER_MODE |
RADEON_Y_OUTPUT_DITHER_EN |
RADEON_UV_OUTPUT_DITHER_EN |
RADEON_UV_TO_BUF_DITHER_EN;
tmp = (tv_vscaler_cntl1 >> RADEON_UV_INC_SHIFT) & RADEON_UV_INC_MASK;
tmp = ((16384 * 256 * 10) / tmp + 5) / 10;
tmp = (tmp << RADEON_UV_OUTPUT_POST_SCALE_SHIFT) | 0x000b0000;
tv_dac->tv.timing_cntl = tmp;
if (tv_dac->tv_std == TV_STD_NTSC ||
tv_dac->tv_std == TV_STD_NTSC_J ||
tv_dac->tv_std == TV_STD_PAL_M ||
tv_dac->tv_std == TV_STD_PAL_60)
tv_dac_cntl = tv_dac->ntsc_tvdac_adj;
else
tv_dac_cntl = tv_dac->pal_tvdac_adj;
tv_dac_cntl |= RADEON_TV_DAC_NBLANK | RADEON_TV_DAC_NHOLD;
if (tv_dac->tv_std == TV_STD_NTSC ||
tv_dac->tv_std == TV_STD_NTSC_J)
tv_dac_cntl |= RADEON_TV_DAC_STD_NTSC;
else
tv_dac_cntl |= RADEON_TV_DAC_STD_PAL;
if (tv_dac->tv_std == TV_STD_NTSC ||
tv_dac->tv_std == TV_STD_NTSC_J) {
if (pll_ref_freq == 2700) {
m = NTSC_TV_PLL_M_27;
n = NTSC_TV_PLL_N_27;
p = NTSC_TV_PLL_P_27;
} else {
m = NTSC_TV_PLL_M_14;
n = NTSC_TV_PLL_N_14;
p = NTSC_TV_PLL_P_14;
}
} else {
if (pll_ref_freq == 2700) {
m = PAL_TV_PLL_M_27;
n = PAL_TV_PLL_N_27;
p = PAL_TV_PLL_P_27;
} else {
m = PAL_TV_PLL_M_14;
n = PAL_TV_PLL_N_14;
p = PAL_TV_PLL_P_14;
}
}
tv_pll_cntl = (m & RADEON_TV_M0LO_MASK) |
(((m >> 8) & RADEON_TV_M0HI_MASK) << RADEON_TV_M0HI_SHIFT) |
((n & RADEON_TV_N0LO_MASK) << RADEON_TV_N0LO_SHIFT) |
(((n >> 9) & RADEON_TV_N0HI_MASK) << RADEON_TV_N0HI_SHIFT) |
((p & RADEON_TV_P_MASK) << RADEON_TV_P_SHIFT);
tv_pll_cntl1 = (((4 & RADEON_TVPCP_MASK) << RADEON_TVPCP_SHIFT) |
((4 & RADEON_TVPVG_MASK) << RADEON_TVPVG_SHIFT) |
((1 & RADEON_TVPDC_MASK) << RADEON_TVPDC_SHIFT) |
RADEON_TVCLK_SRC_SEL_TVPLL |
RADEON_TVPLL_TEST_DIS);
tv_dac->tv.tv_uv_adr = 0xc8;
if (tv_dac->tv_std == TV_STD_NTSC ||
tv_dac->tv_std == TV_STD_NTSC_J ||
tv_dac->tv_std == TV_STD_PAL_M ||
tv_dac->tv_std == TV_STD_PAL_60) {
tv_ftotal = NTSC_TV_VFTOTAL;
hor_timing = hor_timing_NTSC;
vert_timing = vert_timing_NTSC;
} else {
hor_timing = hor_timing_PAL;
vert_timing = vert_timing_PAL;
tv_ftotal = PAL_TV_VFTOTAL;
}
for (i = 0; i < MAX_H_CODE_TIMING_LEN; i++) {
if ((tv_dac->tv.h_code_timing[i] = hor_timing[i]) == 0)
break;
}
for (i = 0; i < MAX_V_CODE_TIMING_LEN; i++) {
if ((tv_dac->tv.v_code_timing[i] = vert_timing[i]) == 0)
break;
}
radeon_legacy_tv_init_restarts(encoder);
/* play with DAC_CNTL */
/* play with GPIOPAD_A */
/* DISP_OUTPUT_CNTL */
/* use reference freq */
/* program the TV registers */
WREG32(RADEON_TV_MASTER_CNTL, (tv_master_cntl | RADEON_TV_ASYNC_RST |
RADEON_CRT_ASYNC_RST | RADEON_TV_FIFO_ASYNC_RST));
tmp = RREG32(RADEON_TV_DAC_CNTL);
tmp &= ~RADEON_TV_DAC_NBLANK;
tmp |= RADEON_TV_DAC_BGSLEEP |
RADEON_TV_DAC_RDACPD |
RADEON_TV_DAC_GDACPD |
RADEON_TV_DAC_BDACPD;
WREG32(RADEON_TV_DAC_CNTL, tmp);
/* TV PLL */
WREG32_PLL_P(RADEON_TV_PLL_CNTL1, 0, ~RADEON_TVCLK_SRC_SEL_TVPLL);
WREG32_PLL(RADEON_TV_PLL_CNTL, tv_pll_cntl);
WREG32_PLL_P(RADEON_TV_PLL_CNTL1, RADEON_TVPLL_RESET, ~RADEON_TVPLL_RESET);
radeon_wait_pll_lock(encoder, 200, 800, 135);
WREG32_PLL_P(RADEON_TV_PLL_CNTL1, 0, ~RADEON_TVPLL_RESET);
radeon_wait_pll_lock(encoder, 300, 160, 27);
radeon_wait_pll_lock(encoder, 200, 800, 135);
WREG32_PLL_P(RADEON_TV_PLL_CNTL1, 0, ~0xf);
WREG32_PLL_P(RADEON_TV_PLL_CNTL1, RADEON_TVCLK_SRC_SEL_TVPLL, ~RADEON_TVCLK_SRC_SEL_TVPLL);
WREG32_PLL_P(RADEON_TV_PLL_CNTL1, (1 << RADEON_TVPDC_SHIFT), ~RADEON_TVPDC_MASK);
WREG32_PLL_P(RADEON_TV_PLL_CNTL1, 0, ~RADEON_TVPLL_SLEEP);
/* TV HV */
WREG32(RADEON_TV_RGB_CNTL, tv_rgb_cntl);
WREG32(RADEON_TV_HTOTAL, const_ptr->hor_total - 1);
WREG32(RADEON_TV_HDISP, const_ptr->hor_resolution - 1);
WREG32(RADEON_TV_HSTART, const_ptr->hor_start);
WREG32(RADEON_TV_VTOTAL, const_ptr->ver_total - 1);
WREG32(RADEON_TV_VDISP, const_ptr->ver_resolution - 1);
WREG32(RADEON_TV_FTOTAL, tv_ftotal);
WREG32(RADEON_TV_VSCALER_CNTL1, tv_vscaler_cntl1);
WREG32(RADEON_TV_VSCALER_CNTL2, tv_vscaler_cntl2);
WREG32(RADEON_TV_Y_FALL_CNTL, tv_y_fall_cntl);
WREG32(RADEON_TV_Y_RISE_CNTL, tv_y_rise_cntl);
WREG32(RADEON_TV_Y_SAW_TOOTH_CNTL, tv_y_saw_tooth_cntl);
WREG32(RADEON_TV_MASTER_CNTL, (tv_master_cntl | RADEON_TV_ASYNC_RST |
RADEON_CRT_ASYNC_RST));
/* TV restarts */
radeon_legacy_write_tv_restarts(radeon_encoder);
/* tv timings */
radeon_restore_tv_timing_tables(radeon_encoder);
WREG32(RADEON_TV_MASTER_CNTL, (tv_master_cntl | RADEON_TV_ASYNC_RST));
/* tv std */
WREG32(RADEON_TV_SYNC_CNTL, (RADEON_SYNC_PUB | RADEON_TV_SYNC_IO_DRIVE));
WREG32(RADEON_TV_TIMING_CNTL, tv_dac->tv.timing_cntl);
WREG32(RADEON_TV_MODULATOR_CNTL1, tv_modulator_cntl1);
WREG32(RADEON_TV_MODULATOR_CNTL2, tv_modulator_cntl2);
WREG32(RADEON_TV_PRE_DAC_MUX_CNTL, (RADEON_Y_RED_EN |
RADEON_C_GRN_EN |
RADEON_CMP_BLU_EN |
RADEON_DAC_DITHER_EN));
WREG32(RADEON_TV_CRC_CNTL, 0);
WREG32(RADEON_TV_MASTER_CNTL, tv_master_cntl);
WREG32(RADEON_TV_GAIN_LIMIT_SETTINGS, ((0x17f << RADEON_UV_GAIN_LIMIT_SHIFT) |
(0x5ff << RADEON_Y_GAIN_LIMIT_SHIFT)));
WREG32(RADEON_TV_LINEAR_GAIN_SETTINGS, ((0x100 << RADEON_UV_GAIN_SHIFT) |
(0x100 << RADEON_Y_GAIN_SHIFT)));
WREG32(RADEON_TV_DAC_CNTL, tv_dac_cntl);
}
void radeon_legacy_tv_adjust_crtc_reg(struct drm_encoder *encoder,
uint32_t *h_total_disp, uint32_t *h_sync_strt_wid,
uint32_t *v_total_disp, uint32_t *v_sync_strt_wid)
{
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
const struct radeon_tv_mode_constants *const_ptr;
uint32_t tmp;
const_ptr = radeon_legacy_tv_get_std_mode(radeon_encoder, NULL);
if (!const_ptr)
return;
*h_total_disp = (((const_ptr->hor_resolution / 8) - 1) << RADEON_CRTC_H_DISP_SHIFT) |
(((const_ptr->hor_total / 8) - 1) << RADEON_CRTC_H_TOTAL_SHIFT);
tmp = *h_sync_strt_wid;
tmp &= ~(RADEON_CRTC_H_SYNC_STRT_PIX | RADEON_CRTC_H_SYNC_STRT_CHAR);
tmp |= (((const_ptr->hor_syncstart / 8) - 1) << RADEON_CRTC_H_SYNC_STRT_CHAR_SHIFT) |
(const_ptr->hor_syncstart & 7);
*h_sync_strt_wid = tmp;
*v_total_disp = ((const_ptr->ver_resolution - 1) << RADEON_CRTC_V_DISP_SHIFT) |
((const_ptr->ver_total - 1) << RADEON_CRTC_V_TOTAL_SHIFT);
tmp = *v_sync_strt_wid;
tmp &= ~RADEON_CRTC_V_SYNC_STRT;
tmp |= ((const_ptr->ver_syncstart - 1) << RADEON_CRTC_V_SYNC_STRT_SHIFT);
*v_sync_strt_wid = tmp;
}
static int get_post_div(int value)
{
int post_div;
switch (value) {
case 1: post_div = 0; break;
case 2: post_div = 1; break;
case 3: post_div = 4; break;
case 4: post_div = 2; break;
case 6: post_div = 6; break;
case 8: post_div = 3; break;
case 12: post_div = 7; break;
case 16:
default: post_div = 5; break;
}
return post_div;
}
void radeon_legacy_tv_adjust_pll1(struct drm_encoder *encoder,
uint32_t *htotal_cntl, uint32_t *ppll_ref_div,
uint32_t *ppll_div_3, uint32_t *pixclks_cntl)
{
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
const struct radeon_tv_mode_constants *const_ptr;
const_ptr = radeon_legacy_tv_get_std_mode(radeon_encoder, NULL);
if (!const_ptr)
return;
*htotal_cntl = (const_ptr->hor_total & 0x7) | RADEON_HTOT_CNTL_VGA_EN;
*ppll_ref_div = const_ptr->crtcPLL_M;
*ppll_div_3 = (const_ptr->crtcPLL_N & 0x7ff) | (get_post_div(const_ptr->crtcPLL_post_div) << 16);
*pixclks_cntl &= ~(RADEON_PIX2CLK_SRC_SEL_MASK | RADEON_PIXCLK_TV_SRC_SEL);
*pixclks_cntl |= RADEON_PIX2CLK_SRC_SEL_P2PLLCLK;
}
void radeon_legacy_tv_adjust_pll2(struct drm_encoder *encoder,
uint32_t *htotal2_cntl, uint32_t *p2pll_ref_div,
uint32_t *p2pll_div_0, uint32_t *pixclks_cntl)
{
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
const struct radeon_tv_mode_constants *const_ptr;
const_ptr = radeon_legacy_tv_get_std_mode(radeon_encoder, NULL);
if (!const_ptr)
return;
*htotal2_cntl = (const_ptr->hor_total & 0x7);
*p2pll_ref_div = const_ptr->crtcPLL_M;
*p2pll_div_0 = (const_ptr->crtcPLL_N & 0x7ff) | (get_post_div(const_ptr->crtcPLL_post_div) << 16);
*pixclks_cntl &= ~RADEON_PIX2CLK_SRC_SEL_MASK;
*pixclks_cntl |= RADEON_PIX2CLK_SRC_SEL_P2PLLCLK | RADEON_PIXCLK_TV_SRC_SEL;
}
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