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bae06ca122
Try to use the same programming sequence as used by the IEGD driver. Also shovel the magic register values into a big static const array. The register values are actually the based on what the BIOS programs on the Fujitsu-Siemens Lifebook S6010. IEGD seemed to have hardcoded register values (which also enabled the scaler for 1024x768 mode). However those didn't actually work so well on the S6010. Possibly the pipe timings that got used didn't match the ns2501 configuration. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Thomas Richter <richter@rus.uni-stuttgart.de> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
622 lines
20 KiB
C
622 lines
20 KiB
C
/*
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*
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* Copyright (c) 2012 Gilles Dartiguelongue, Thomas Richter
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*
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#include "dvo.h"
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#include "i915_reg.h"
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#include "i915_drv.h"
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#define NS2501_VID 0x1305
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#define NS2501_DID 0x6726
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#define NS2501_VID_LO 0x00
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#define NS2501_VID_HI 0x01
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#define NS2501_DID_LO 0x02
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#define NS2501_DID_HI 0x03
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#define NS2501_REV 0x04
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#define NS2501_RSVD 0x05
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#define NS2501_FREQ_LO 0x06
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#define NS2501_FREQ_HI 0x07
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#define NS2501_REG8 0x08
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#define NS2501_8_VEN (1<<5)
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#define NS2501_8_HEN (1<<4)
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#define NS2501_8_DSEL (1<<3)
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#define NS2501_8_BPAS (1<<2)
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#define NS2501_8_RSVD (1<<1)
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#define NS2501_8_PD (1<<0)
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#define NS2501_REG9 0x09
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#define NS2501_9_VLOW (1<<7)
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#define NS2501_9_MSEL_MASK (0x7<<4)
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#define NS2501_9_TSEL (1<<3)
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#define NS2501_9_RSEN (1<<2)
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#define NS2501_9_RSVD (1<<1)
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#define NS2501_9_MDI (1<<0)
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#define NS2501_REGC 0x0c
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enum {
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MODE_640x480,
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MODE_800x600,
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MODE_1024x768,
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};
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struct ns2501_reg {
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uint8_t offset;
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uint8_t value;
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};
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/*
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* Magic values based on what the BIOS on
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* Fujitsu-Siemens Lifebook S6010 programs (1024x768 panel).
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*/
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static const struct ns2501_reg regs_1024x768[][86] = {
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[MODE_640x480] = {
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[0] = { .offset = 0x0a, .value = 0x81, },
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[1] = { .offset = 0x18, .value = 0x07, },
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[2] = { .offset = 0x19, .value = 0x00, },
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[3] = { .offset = 0x1a, .value = 0x00, },
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[4] = { .offset = 0x1b, .value = 0x11, },
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[5] = { .offset = 0x1c, .value = 0x54, },
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[6] = { .offset = 0x1d, .value = 0x03, },
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[7] = { .offset = 0x1e, .value = 0x02, },
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[8] = { .offset = 0xf3, .value = 0x90, },
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[9] = { .offset = 0xf9, .value = 0x00, },
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[10] = { .offset = 0xc1, .value = 0x90, },
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[11] = { .offset = 0xc2, .value = 0x00, },
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[12] = { .offset = 0xc3, .value = 0x0f, },
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[13] = { .offset = 0xc4, .value = 0x03, },
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[14] = { .offset = 0xc5, .value = 0x16, },
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[15] = { .offset = 0xc6, .value = 0x00, },
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[16] = { .offset = 0xc7, .value = 0x02, },
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[17] = { .offset = 0xc8, .value = 0x02, },
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[18] = { .offset = 0xf4, .value = 0x00, },
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[19] = { .offset = 0x80, .value = 0xff, },
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[20] = { .offset = 0x81, .value = 0x07, },
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[21] = { .offset = 0x82, .value = 0x3d, },
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[22] = { .offset = 0x83, .value = 0x05, },
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[23] = { .offset = 0x94, .value = 0x00, },
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[24] = { .offset = 0x95, .value = 0x00, },
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[25] = { .offset = 0x96, .value = 0x05, },
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[26] = { .offset = 0x97, .value = 0x00, },
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[27] = { .offset = 0x9a, .value = 0x88, },
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[28] = { .offset = 0x9b, .value = 0x00, },
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[29] = { .offset = 0x98, .value = 0x00, },
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[30] = { .offset = 0x99, .value = 0x00, },
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[31] = { .offset = 0xf7, .value = 0x88, },
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[32] = { .offset = 0xf8, .value = 0x0a, },
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[33] = { .offset = 0x9c, .value = 0x24, },
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[34] = { .offset = 0x9d, .value = 0x00, },
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[35] = { .offset = 0x9e, .value = 0x25, },
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[36] = { .offset = 0x9f, .value = 0x03, },
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[37] = { .offset = 0xa0, .value = 0x28, },
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[38] = { .offset = 0xa1, .value = 0x01, },
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[39] = { .offset = 0xa2, .value = 0x28, },
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[40] = { .offset = 0xa3, .value = 0x05, },
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[41] = { .offset = 0xb6, .value = 0x09, },
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[42] = { .offset = 0xb8, .value = 0x00, },
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[43] = { .offset = 0xb9, .value = 0xa0, },
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[44] = { .offset = 0xba, .value = 0x00, },
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[45] = { .offset = 0xbb, .value = 0x20, },
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[46] = { .offset = 0x10, .value = 0x00, },
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[47] = { .offset = 0x11, .value = 0xa0, },
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[48] = { .offset = 0x12, .value = 0x02, },
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[49] = { .offset = 0x20, .value = 0x00, },
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[50] = { .offset = 0x22, .value = 0x00, },
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[51] = { .offset = 0x23, .value = 0x00, },
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[52] = { .offset = 0x24, .value = 0x00, },
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[53] = { .offset = 0x25, .value = 0x00, },
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[54] = { .offset = 0x8c, .value = 0x10, },
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[55] = { .offset = 0x8d, .value = 0x02, },
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[56] = { .offset = 0x8e, .value = 0x10, },
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[57] = { .offset = 0x8f, .value = 0x00, },
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[58] = { .offset = 0x90, .value = 0xff, },
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[59] = { .offset = 0x91, .value = 0x07, },
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[60] = { .offset = 0x92, .value = 0xa0, },
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[61] = { .offset = 0x93, .value = 0x02, },
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[62] = { .offset = 0xa5, .value = 0x00, },
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[63] = { .offset = 0xa6, .value = 0x00, },
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[64] = { .offset = 0xa7, .value = 0x00, },
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[65] = { .offset = 0xa8, .value = 0x00, },
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[66] = { .offset = 0xa9, .value = 0x04, },
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[67] = { .offset = 0xaa, .value = 0x70, },
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[68] = { .offset = 0xab, .value = 0x4f, },
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[69] = { .offset = 0xac, .value = 0x00, },
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[70] = { .offset = 0xa4, .value = 0x84, },
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[71] = { .offset = 0x7e, .value = 0x18, },
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[72] = { .offset = 0x84, .value = 0x00, },
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[73] = { .offset = 0x85, .value = 0x00, },
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[74] = { .offset = 0x86, .value = 0x00, },
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[75] = { .offset = 0x87, .value = 0x00, },
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[76] = { .offset = 0x88, .value = 0x00, },
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[77] = { .offset = 0x89, .value = 0x00, },
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[78] = { .offset = 0x8a, .value = 0x00, },
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[79] = { .offset = 0x8b, .value = 0x00, },
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[80] = { .offset = 0x26, .value = 0x00, },
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[81] = { .offset = 0x27, .value = 0x00, },
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[82] = { .offset = 0xad, .value = 0x00, },
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[83] = { .offset = 0x08, .value = 0x30, }, /* 0x31 */
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[84] = { .offset = 0x41, .value = 0x00, },
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[85] = { .offset = 0xc0, .value = 0x05, },
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},
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[MODE_800x600] = {
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[0] = { .offset = 0x0a, .value = 0x81, },
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[1] = { .offset = 0x18, .value = 0x07, },
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[2] = { .offset = 0x19, .value = 0x00, },
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[3] = { .offset = 0x1a, .value = 0x00, },
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[4] = { .offset = 0x1b, .value = 0x19, },
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[5] = { .offset = 0x1c, .value = 0x64, },
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[6] = { .offset = 0x1d, .value = 0x02, },
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[7] = { .offset = 0x1e, .value = 0x02, },
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[8] = { .offset = 0xf3, .value = 0x90, },
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[9] = { .offset = 0xf9, .value = 0x00, },
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[10] = { .offset = 0xc1, .value = 0xd7, },
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[11] = { .offset = 0xc2, .value = 0x00, },
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[12] = { .offset = 0xc3, .value = 0xf8, },
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[13] = { .offset = 0xc4, .value = 0x03, },
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[14] = { .offset = 0xc5, .value = 0x1a, },
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[15] = { .offset = 0xc6, .value = 0x00, },
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[16] = { .offset = 0xc7, .value = 0x73, },
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[17] = { .offset = 0xc8, .value = 0x02, },
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[18] = { .offset = 0xf4, .value = 0x00, },
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[19] = { .offset = 0x80, .value = 0x27, },
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[20] = { .offset = 0x81, .value = 0x03, },
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[21] = { .offset = 0x82, .value = 0x41, },
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[22] = { .offset = 0x83, .value = 0x05, },
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[23] = { .offset = 0x94, .value = 0x00, },
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[24] = { .offset = 0x95, .value = 0x00, },
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[25] = { .offset = 0x96, .value = 0x05, },
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[26] = { .offset = 0x97, .value = 0x00, },
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[27] = { .offset = 0x9a, .value = 0x88, },
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[28] = { .offset = 0x9b, .value = 0x00, },
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[29] = { .offset = 0x98, .value = 0x00, },
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[30] = { .offset = 0x99, .value = 0x00, },
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[31] = { .offset = 0xf7, .value = 0x88, },
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[32] = { .offset = 0xf8, .value = 0x06, },
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[33] = { .offset = 0x9c, .value = 0x23, },
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[34] = { .offset = 0x9d, .value = 0x00, },
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[35] = { .offset = 0x9e, .value = 0x25, },
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[36] = { .offset = 0x9f, .value = 0x03, },
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[37] = { .offset = 0xa0, .value = 0x28, },
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[38] = { .offset = 0xa1, .value = 0x01, },
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[39] = { .offset = 0xa2, .value = 0x28, },
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[40] = { .offset = 0xa3, .value = 0x05, },
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[41] = { .offset = 0xb6, .value = 0x09, },
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[42] = { .offset = 0xb8, .value = 0x30, },
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[43] = { .offset = 0xb9, .value = 0xc8, },
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[44] = { .offset = 0xba, .value = 0x00, },
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[45] = { .offset = 0xbb, .value = 0x20, },
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[46] = { .offset = 0x10, .value = 0x20, },
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[47] = { .offset = 0x11, .value = 0xc8, },
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[48] = { .offset = 0x12, .value = 0x02, },
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[49] = { .offset = 0x20, .value = 0x00, },
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[50] = { .offset = 0x22, .value = 0x00, },
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[51] = { .offset = 0x23, .value = 0x00, },
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[52] = { .offset = 0x24, .value = 0x00, },
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[53] = { .offset = 0x25, .value = 0x00, },
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[54] = { .offset = 0x8c, .value = 0x10, },
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[55] = { .offset = 0x8d, .value = 0x02, },
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[56] = { .offset = 0x8e, .value = 0x04, },
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[57] = { .offset = 0x8f, .value = 0x00, },
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[58] = { .offset = 0x90, .value = 0xff, },
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[59] = { .offset = 0x91, .value = 0x07, },
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[60] = { .offset = 0x92, .value = 0xa0, },
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[61] = { .offset = 0x93, .value = 0x02, },
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[62] = { .offset = 0xa5, .value = 0x00, },
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[63] = { .offset = 0xa6, .value = 0x00, },
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[64] = { .offset = 0xa7, .value = 0x00, },
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[65] = { .offset = 0xa8, .value = 0x00, },
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[66] = { .offset = 0xa9, .value = 0x83, },
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[67] = { .offset = 0xaa, .value = 0x40, },
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[68] = { .offset = 0xab, .value = 0x32, },
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[69] = { .offset = 0xac, .value = 0x00, },
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[70] = { .offset = 0xa4, .value = 0x80, },
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[71] = { .offset = 0x7e, .value = 0x18, },
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[72] = { .offset = 0x84, .value = 0x00, },
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[73] = { .offset = 0x85, .value = 0x00, },
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[74] = { .offset = 0x86, .value = 0x00, },
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[75] = { .offset = 0x87, .value = 0x00, },
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[76] = { .offset = 0x88, .value = 0x00, },
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[77] = { .offset = 0x89, .value = 0x00, },
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[78] = { .offset = 0x8a, .value = 0x00, },
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[79] = { .offset = 0x8b, .value = 0x00, },
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[80] = { .offset = 0x26, .value = 0x00, },
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[81] = { .offset = 0x27, .value = 0x00, },
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[82] = { .offset = 0xad, .value = 0x00, },
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[83] = { .offset = 0x08, .value = 0x30, }, /* 0x31 */
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[84] = { .offset = 0x41, .value = 0x00, },
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[85] = { .offset = 0xc0, .value = 0x07, },
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},
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[MODE_1024x768] = {
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[0] = { .offset = 0x0a, .value = 0x81, },
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[1] = { .offset = 0x18, .value = 0x07, },
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[2] = { .offset = 0x19, .value = 0x00, },
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[3] = { .offset = 0x1a, .value = 0x00, },
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[4] = { .offset = 0x1b, .value = 0x11, },
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[5] = { .offset = 0x1c, .value = 0x54, },
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[6] = { .offset = 0x1d, .value = 0x03, },
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[7] = { .offset = 0x1e, .value = 0x02, },
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[8] = { .offset = 0xf3, .value = 0x90, },
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[9] = { .offset = 0xf9, .value = 0x00, },
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[10] = { .offset = 0xc1, .value = 0x90, },
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[11] = { .offset = 0xc2, .value = 0x00, },
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[12] = { .offset = 0xc3, .value = 0x0f, },
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[13] = { .offset = 0xc4, .value = 0x03, },
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[14] = { .offset = 0xc5, .value = 0x16, },
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[15] = { .offset = 0xc6, .value = 0x00, },
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[16] = { .offset = 0xc7, .value = 0x02, },
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[17] = { .offset = 0xc8, .value = 0x02, },
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[18] = { .offset = 0xf4, .value = 0x00, },
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[19] = { .offset = 0x80, .value = 0xff, },
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[20] = { .offset = 0x81, .value = 0x07, },
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[21] = { .offset = 0x82, .value = 0x3d, },
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[22] = { .offset = 0x83, .value = 0x05, },
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[23] = { .offset = 0x94, .value = 0x00, },
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[24] = { .offset = 0x95, .value = 0x00, },
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[25] = { .offset = 0x96, .value = 0x05, },
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[26] = { .offset = 0x97, .value = 0x00, },
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[27] = { .offset = 0x9a, .value = 0x88, },
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[28] = { .offset = 0x9b, .value = 0x00, },
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[29] = { .offset = 0x98, .value = 0x00, },
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[30] = { .offset = 0x99, .value = 0x00, },
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[31] = { .offset = 0xf7, .value = 0x88, },
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[32] = { .offset = 0xf8, .value = 0x0a, },
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[33] = { .offset = 0x9c, .value = 0x24, },
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[34] = { .offset = 0x9d, .value = 0x00, },
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[35] = { .offset = 0x9e, .value = 0x25, },
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[36] = { .offset = 0x9f, .value = 0x03, },
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[37] = { .offset = 0xa0, .value = 0x28, },
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[38] = { .offset = 0xa1, .value = 0x01, },
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[39] = { .offset = 0xa2, .value = 0x28, },
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[40] = { .offset = 0xa3, .value = 0x05, },
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[41] = { .offset = 0xb6, .value = 0x09, },
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[42] = { .offset = 0xb8, .value = 0x00, },
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[43] = { .offset = 0xb9, .value = 0xa0, },
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[44] = { .offset = 0xba, .value = 0x00, },
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[45] = { .offset = 0xbb, .value = 0x20, },
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[46] = { .offset = 0x10, .value = 0x00, },
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[47] = { .offset = 0x11, .value = 0xa0, },
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[48] = { .offset = 0x12, .value = 0x02, },
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[49] = { .offset = 0x20, .value = 0x00, },
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[50] = { .offset = 0x22, .value = 0x00, },
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[51] = { .offset = 0x23, .value = 0x00, },
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[52] = { .offset = 0x24, .value = 0x00, },
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[53] = { .offset = 0x25, .value = 0x00, },
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[54] = { .offset = 0x8c, .value = 0x10, },
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[55] = { .offset = 0x8d, .value = 0x02, },
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[56] = { .offset = 0x8e, .value = 0x10, },
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[57] = { .offset = 0x8f, .value = 0x00, },
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[58] = { .offset = 0x90, .value = 0xff, },
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[59] = { .offset = 0x91, .value = 0x07, },
|
|
[60] = { .offset = 0x92, .value = 0xa0, },
|
|
[61] = { .offset = 0x93, .value = 0x02, },
|
|
[62] = { .offset = 0xa5, .value = 0x00, },
|
|
[63] = { .offset = 0xa6, .value = 0x00, },
|
|
[64] = { .offset = 0xa7, .value = 0x00, },
|
|
[65] = { .offset = 0xa8, .value = 0x00, },
|
|
[66] = { .offset = 0xa9, .value = 0x04, },
|
|
[67] = { .offset = 0xaa, .value = 0x70, },
|
|
[68] = { .offset = 0xab, .value = 0x4f, },
|
|
[69] = { .offset = 0xac, .value = 0x00, },
|
|
[70] = { .offset = 0xa4, .value = 0x84, },
|
|
[71] = { .offset = 0x7e, .value = 0x18, },
|
|
[72] = { .offset = 0x84, .value = 0x00, },
|
|
[73] = { .offset = 0x85, .value = 0x00, },
|
|
[74] = { .offset = 0x86, .value = 0x00, },
|
|
[75] = { .offset = 0x87, .value = 0x00, },
|
|
[76] = { .offset = 0x88, .value = 0x00, },
|
|
[77] = { .offset = 0x89, .value = 0x00, },
|
|
[78] = { .offset = 0x8a, .value = 0x00, },
|
|
[79] = { .offset = 0x8b, .value = 0x00, },
|
|
[80] = { .offset = 0x26, .value = 0x00, },
|
|
[81] = { .offset = 0x27, .value = 0x00, },
|
|
[82] = { .offset = 0xad, .value = 0x00, },
|
|
[83] = { .offset = 0x08, .value = 0x34, }, /* 0x35 */
|
|
[84] = { .offset = 0x41, .value = 0x00, },
|
|
[85] = { .offset = 0xc0, .value = 0x01, },
|
|
},
|
|
};
|
|
|
|
struct ns2501_priv {
|
|
bool quiet;
|
|
const struct ns2501_reg *regs;
|
|
};
|
|
|
|
#define NSPTR(d) ((NS2501Ptr)(d->DriverPrivate.ptr))
|
|
|
|
/*
|
|
* For reasons unclear to me, the ns2501 at least on the Fujitsu/Siemens
|
|
* laptops does not react on the i2c bus unless
|
|
* both the PLL is running and the display is configured in its native
|
|
* resolution.
|
|
* This function forces the DVO on, and stores the registers it touches.
|
|
* Afterwards, registers are restored to regular values.
|
|
*
|
|
* This is pretty much a hack, though it works.
|
|
* Without that, ns2501_readb and ns2501_writeb fail
|
|
* when switching the resolution.
|
|
*/
|
|
|
|
/*
|
|
** Read a register from the ns2501.
|
|
** Returns true if successful, false otherwise.
|
|
** If it returns false, it might be wise to enable the
|
|
** DVO with the above function.
|
|
*/
|
|
static bool ns2501_readb(struct intel_dvo_device *dvo, int addr, uint8_t * ch)
|
|
{
|
|
struct ns2501_priv *ns = dvo->dev_priv;
|
|
struct i2c_adapter *adapter = dvo->i2c_bus;
|
|
u8 out_buf[2];
|
|
u8 in_buf[2];
|
|
|
|
struct i2c_msg msgs[] = {
|
|
{
|
|
.addr = dvo->slave_addr,
|
|
.flags = 0,
|
|
.len = 1,
|
|
.buf = out_buf,
|
|
},
|
|
{
|
|
.addr = dvo->slave_addr,
|
|
.flags = I2C_M_RD,
|
|
.len = 1,
|
|
.buf = in_buf,
|
|
}
|
|
};
|
|
|
|
out_buf[0] = addr;
|
|
out_buf[1] = 0;
|
|
|
|
if (i2c_transfer(adapter, msgs, 2) == 2) {
|
|
*ch = in_buf[0];
|
|
return true;
|
|
}
|
|
|
|
if (!ns->quiet) {
|
|
DRM_DEBUG_KMS
|
|
("Unable to read register 0x%02x from %s:0x%02x.\n", addr,
|
|
adapter->name, dvo->slave_addr);
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/*
|
|
** Write a register to the ns2501.
|
|
** Returns true if successful, false otherwise.
|
|
** If it returns false, it might be wise to enable the
|
|
** DVO with the above function.
|
|
*/
|
|
static bool ns2501_writeb(struct intel_dvo_device *dvo, int addr, uint8_t ch)
|
|
{
|
|
struct ns2501_priv *ns = dvo->dev_priv;
|
|
struct i2c_adapter *adapter = dvo->i2c_bus;
|
|
uint8_t out_buf[2];
|
|
|
|
struct i2c_msg msg = {
|
|
.addr = dvo->slave_addr,
|
|
.flags = 0,
|
|
.len = 2,
|
|
.buf = out_buf,
|
|
};
|
|
|
|
out_buf[0] = addr;
|
|
out_buf[1] = ch;
|
|
|
|
if (i2c_transfer(adapter, &msg, 1) == 1) {
|
|
return true;
|
|
}
|
|
|
|
if (!ns->quiet) {
|
|
DRM_DEBUG_KMS("Unable to write register 0x%02x to %s:%d\n",
|
|
addr, adapter->name, dvo->slave_addr);
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/* National Semiconductor 2501 driver for chip on i2c bus
|
|
* scan for the chip on the bus.
|
|
* Hope the VBIOS initialized the PLL correctly so we can
|
|
* talk to it. If not, it will not be seen and not detected.
|
|
* Bummer!
|
|
*/
|
|
static bool ns2501_init(struct intel_dvo_device *dvo,
|
|
struct i2c_adapter *adapter)
|
|
{
|
|
/* this will detect the NS2501 chip on the specified i2c bus */
|
|
struct ns2501_priv *ns;
|
|
unsigned char ch;
|
|
|
|
ns = kzalloc(sizeof(struct ns2501_priv), GFP_KERNEL);
|
|
if (ns == NULL)
|
|
return false;
|
|
|
|
dvo->i2c_bus = adapter;
|
|
dvo->dev_priv = ns;
|
|
ns->quiet = true;
|
|
|
|
if (!ns2501_readb(dvo, NS2501_VID_LO, &ch))
|
|
goto out;
|
|
|
|
if (ch != (NS2501_VID & 0xff)) {
|
|
DRM_DEBUG_KMS("ns2501 not detected got %d: from %s Slave %d.\n",
|
|
ch, adapter->name, dvo->slave_addr);
|
|
goto out;
|
|
}
|
|
|
|
if (!ns2501_readb(dvo, NS2501_DID_LO, &ch))
|
|
goto out;
|
|
|
|
if (ch != (NS2501_DID & 0xff)) {
|
|
DRM_DEBUG_KMS("ns2501 not detected got %d: from %s Slave %d.\n",
|
|
ch, adapter->name, dvo->slave_addr);
|
|
goto out;
|
|
}
|
|
ns->quiet = false;
|
|
|
|
DRM_DEBUG_KMS("init ns2501 dvo controller successfully!\n");
|
|
|
|
return true;
|
|
|
|
out:
|
|
kfree(ns);
|
|
return false;
|
|
}
|
|
|
|
static enum drm_connector_status ns2501_detect(struct intel_dvo_device *dvo)
|
|
{
|
|
/*
|
|
* This is a Laptop display, it doesn't have hotplugging.
|
|
* Even if not, the detection bit of the 2501 is unreliable as
|
|
* it only works for some display types.
|
|
* It is even more unreliable as the PLL must be active for
|
|
* allowing reading from the chiop.
|
|
*/
|
|
return connector_status_connected;
|
|
}
|
|
|
|
static enum drm_mode_status ns2501_mode_valid(struct intel_dvo_device *dvo,
|
|
struct drm_display_mode *mode)
|
|
{
|
|
DRM_DEBUG_KMS
|
|
("is mode valid (hdisplay=%d,htotal=%d,vdisplay=%d,vtotal=%d)\n",
|
|
mode->hdisplay, mode->htotal, mode->vdisplay, mode->vtotal);
|
|
|
|
/*
|
|
* Currently, these are all the modes I have data from.
|
|
* More might exist. Unclear how to find the native resolution
|
|
* of the panel in here so we could always accept it
|
|
* by disabling the scaler.
|
|
*/
|
|
if ((mode->hdisplay == 800 && mode->vdisplay == 600) ||
|
|
(mode->hdisplay == 640 && mode->vdisplay == 480) ||
|
|
(mode->hdisplay == 1024 && mode->vdisplay == 768)) {
|
|
return MODE_OK;
|
|
} else {
|
|
return MODE_ONE_SIZE; /* Is this a reasonable error? */
|
|
}
|
|
}
|
|
|
|
static void ns2501_mode_set(struct intel_dvo_device *dvo,
|
|
struct drm_display_mode *mode,
|
|
struct drm_display_mode *adjusted_mode)
|
|
{
|
|
struct ns2501_priv *ns = (struct ns2501_priv *)(dvo->dev_priv);
|
|
int mode_idx, i;
|
|
|
|
DRM_DEBUG_KMS
|
|
("set mode (hdisplay=%d,htotal=%d,vdisplay=%d,vtotal=%d).\n",
|
|
mode->hdisplay, mode->htotal, mode->vdisplay, mode->vtotal);
|
|
|
|
if (mode->hdisplay == 640 && mode->vdisplay == 480)
|
|
mode_idx = MODE_640x480;
|
|
else if (mode->hdisplay == 800 && mode->vdisplay == 600)
|
|
mode_idx = MODE_800x600;
|
|
else if (mode->hdisplay == 1024 && mode->vdisplay == 768)
|
|
mode_idx = MODE_1024x768;
|
|
else
|
|
return;
|
|
|
|
ns->regs = regs_1024x768[mode_idx];
|
|
|
|
for (i = 0; i < 84; i++)
|
|
ns2501_writeb(dvo, ns->regs[i].offset, ns->regs[i].value);
|
|
}
|
|
|
|
/* set the NS2501 power state */
|
|
static bool ns2501_get_hw_state(struct intel_dvo_device *dvo)
|
|
{
|
|
unsigned char ch;
|
|
|
|
if (!ns2501_readb(dvo, NS2501_REG8, &ch))
|
|
return false;
|
|
|
|
return ch & NS2501_8_PD;
|
|
}
|
|
|
|
/* set the NS2501 power state */
|
|
static void ns2501_dpms(struct intel_dvo_device *dvo, bool enable)
|
|
{
|
|
struct ns2501_priv *ns = (struct ns2501_priv *)(dvo->dev_priv);
|
|
|
|
DRM_DEBUG_KMS("Trying set the dpms of the DVO to %i\n", enable);
|
|
|
|
if (enable) {
|
|
if (WARN_ON(ns->regs[83].offset != 0x08 ||
|
|
ns->regs[84].offset != 0x41 ||
|
|
ns->regs[85].offset != 0xc0))
|
|
return;
|
|
|
|
ns2501_writeb(dvo, 0xc0, ns->regs[85].value | 0x08);
|
|
|
|
ns2501_writeb(dvo, 0x41, ns->regs[84].value);
|
|
|
|
ns2501_writeb(dvo, 0x34, 0x01);
|
|
msleep(15);
|
|
|
|
ns2501_writeb(dvo, 0x08, 0x35);
|
|
if (!(ns->regs[83].value & NS2501_8_BPAS))
|
|
ns2501_writeb(dvo, 0x08, 0x31);
|
|
msleep(200);
|
|
|
|
ns2501_writeb(dvo, 0x34, 0x03);
|
|
|
|
ns2501_writeb(dvo, 0xc0, ns->regs[85].value);
|
|
} else {
|
|
ns2501_writeb(dvo, 0x34, 0x01);
|
|
msleep(200);
|
|
|
|
ns2501_writeb(dvo, 0x08, 0x34);
|
|
msleep(15);
|
|
|
|
ns2501_writeb(dvo, 0x34, 0x00);
|
|
}
|
|
}
|
|
|
|
static void ns2501_destroy(struct intel_dvo_device *dvo)
|
|
{
|
|
struct ns2501_priv *ns = dvo->dev_priv;
|
|
|
|
if (ns) {
|
|
kfree(ns);
|
|
dvo->dev_priv = NULL;
|
|
}
|
|
}
|
|
|
|
struct intel_dvo_dev_ops ns2501_ops = {
|
|
.init = ns2501_init,
|
|
.detect = ns2501_detect,
|
|
.mode_valid = ns2501_mode_valid,
|
|
.mode_set = ns2501_mode_set,
|
|
.dpms = ns2501_dpms,
|
|
.get_hw_state = ns2501_get_hw_state,
|
|
.destroy = ns2501_destroy,
|
|
};
|