diff options
Diffstat (limited to 'drivers/video/fbdev/via/hw.c')
| -rw-r--r-- | drivers/video/fbdev/via/hw.c | 2119 |
1 files changed, 2119 insertions, 0 deletions
diff --git a/drivers/video/fbdev/via/hw.c b/drivers/video/fbdev/via/hw.c new file mode 100644 index 0000000000..66afd7be00 --- /dev/null +++ b/drivers/video/fbdev/via/hw.c @@ -0,0 +1,2119 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright 1998-2008 VIA Technologies, Inc. All Rights Reserved. + * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved. + + */ + +#include <linux/via-core.h> +#include "global.h" +#include "via_clock.h" + +static struct pll_limit cle266_pll_limits[] = { + {19, 19, 4, 0}, + {26, 102, 5, 0}, + {53, 112, 6, 0}, + {41, 100, 7, 0}, + {83, 108, 8, 0}, + {87, 118, 9, 0}, + {95, 115, 12, 0}, + {108, 108, 13, 0}, + {83, 83, 17, 0}, + {67, 98, 20, 0}, + {121, 121, 24, 0}, + {99, 99, 29, 0}, + {33, 33, 3, 1}, + {15, 23, 4, 1}, + {37, 121, 5, 1}, + {82, 82, 6, 1}, + {31, 84, 7, 1}, + {83, 83, 8, 1}, + {76, 127, 9, 1}, + {33, 121, 4, 2}, + {91, 118, 5, 2}, + {83, 109, 6, 2}, + {90, 90, 7, 2}, + {93, 93, 2, 3}, + {53, 53, 3, 3}, + {73, 117, 4, 3}, + {101, 127, 5, 3}, + {99, 99, 7, 3} +}; + +static struct pll_limit k800_pll_limits[] = { + {22, 22, 2, 0}, + {28, 28, 3, 0}, + {81, 112, 3, 1}, + {86, 166, 4, 1}, + {109, 153, 5, 1}, + {66, 116, 3, 2}, + {93, 137, 4, 2}, + {117, 208, 5, 2}, + {30, 30, 2, 3}, + {69, 125, 3, 3}, + {89, 161, 4, 3}, + {121, 208, 5, 3}, + {66, 66, 2, 4}, + {85, 85, 3, 4}, + {141, 161, 4, 4}, + {177, 177, 5, 4} +}; + +static struct pll_limit cx700_pll_limits[] = { + {98, 98, 3, 1}, + {86, 86, 4, 1}, + {109, 208, 5, 1}, + {68, 68, 2, 2}, + {95, 116, 3, 2}, + {93, 166, 4, 2}, + {110, 206, 5, 2}, + {174, 174, 7, 2}, + {82, 109, 3, 3}, + {117, 161, 4, 3}, + {112, 208, 5, 3}, + {141, 202, 5, 4} +}; + +static struct pll_limit vx855_pll_limits[] = { + {86, 86, 4, 1}, + {108, 208, 5, 1}, + {110, 208, 5, 2}, + {83, 112, 3, 3}, + {103, 161, 4, 3}, + {112, 209, 5, 3}, + {142, 161, 4, 4}, + {141, 176, 5, 4} +}; + +/* according to VIA Technologies these values are based on experiment */ +static struct io_reg scaling_parameters[] = { + {VIACR, CR7A, 0xFF, 0x01}, /* LCD Scaling Parameter 1 */ + {VIACR, CR7B, 0xFF, 0x02}, /* LCD Scaling Parameter 2 */ + {VIACR, CR7C, 0xFF, 0x03}, /* LCD Scaling Parameter 3 */ + {VIACR, CR7D, 0xFF, 0x04}, /* LCD Scaling Parameter 4 */ + {VIACR, CR7E, 0xFF, 0x07}, /* LCD Scaling Parameter 5 */ + {VIACR, CR7F, 0xFF, 0x0A}, /* LCD Scaling Parameter 6 */ + {VIACR, CR80, 0xFF, 0x0D}, /* LCD Scaling Parameter 7 */ + {VIACR, CR81, 0xFF, 0x13}, /* LCD Scaling Parameter 8 */ + {VIACR, CR82, 0xFF, 0x16}, /* LCD Scaling Parameter 9 */ + {VIACR, CR83, 0xFF, 0x19}, /* LCD Scaling Parameter 10 */ + {VIACR, CR84, 0xFF, 0x1C}, /* LCD Scaling Parameter 11 */ + {VIACR, CR85, 0xFF, 0x1D}, /* LCD Scaling Parameter 12 */ + {VIACR, CR86, 0xFF, 0x1E}, /* LCD Scaling Parameter 13 */ + {VIACR, CR87, 0xFF, 0x1F}, /* LCD Scaling Parameter 14 */ +}; + +static struct io_reg common_vga[] = { + {VIACR, CR07, 0x10, 0x10}, /* [0] vertical total (bit 8) + [1] vertical display end (bit 8) + [2] vertical retrace start (bit 8) + [3] start vertical blanking (bit 8) + [4] line compare (bit 8) + [5] vertical total (bit 9) + [6] vertical display end (bit 9) + [7] vertical retrace start (bit 9) */ + {VIACR, CR08, 0xFF, 0x00}, /* [0-4] preset row scan + [5-6] byte panning */ + {VIACR, CR09, 0xDF, 0x40}, /* [0-4] max scan line + [5] start vertical blanking (bit 9) + [6] line compare (bit 9) + [7] scan doubling */ + {VIACR, CR0A, 0xFF, 0x1E}, /* [0-4] cursor start + [5] cursor disable */ + {VIACR, CR0B, 0xFF, 0x00}, /* [0-4] cursor end + [5-6] cursor skew */ + {VIACR, CR0E, 0xFF, 0x00}, /* [0-7] cursor location (high) */ + {VIACR, CR0F, 0xFF, 0x00}, /* [0-7] cursor location (low) */ + {VIACR, CR11, 0xF0, 0x80}, /* [0-3] vertical retrace end + [6] memory refresh bandwidth + [7] CRTC register protect enable */ + {VIACR, CR14, 0xFF, 0x00}, /* [0-4] underline location + [5] divide memory address clock by 4 + [6] double word addressing */ + {VIACR, CR17, 0xFF, 0x63}, /* [0-1] mapping of display address 13-14 + [2] divide scan line clock by 2 + [3] divide memory address clock by 2 + [5] address wrap + [6] byte mode select + [7] sync enable */ + {VIACR, CR18, 0xFF, 0xFF}, /* [0-7] line compare */ +}; + +static struct fifo_depth_select display_fifo_depth_reg = { + /* IGA1 FIFO Depth_Select */ + {IGA1_FIFO_DEPTH_SELECT_REG_NUM, {{SR17, 0, 7} } }, + /* IGA2 FIFO Depth_Select */ + {IGA2_FIFO_DEPTH_SELECT_REG_NUM, + {{CR68, 4, 7}, {CR94, 7, 7}, {CR95, 7, 7} } } +}; + +static struct fifo_threshold_select fifo_threshold_select_reg = { + /* IGA1 FIFO Threshold Select */ + {IGA1_FIFO_THRESHOLD_REG_NUM, {{SR16, 0, 5}, {SR16, 7, 7} } }, + /* IGA2 FIFO Threshold Select */ + {IGA2_FIFO_THRESHOLD_REG_NUM, {{CR68, 0, 3}, {CR95, 4, 6} } } +}; + +static struct fifo_high_threshold_select fifo_high_threshold_select_reg = { + /* IGA1 FIFO High Threshold Select */ + {IGA1_FIFO_HIGH_THRESHOLD_REG_NUM, {{SR18, 0, 5}, {SR18, 7, 7} } }, + /* IGA2 FIFO High Threshold Select */ + {IGA2_FIFO_HIGH_THRESHOLD_REG_NUM, {{CR92, 0, 3}, {CR95, 0, 2} } } +}; + +static struct display_queue_expire_num display_queue_expire_num_reg = { + /* IGA1 Display Queue Expire Num */ + {IGA1_DISPLAY_QUEUE_EXPIRE_NUM_REG_NUM, {{SR22, 0, 4} } }, + /* IGA2 Display Queue Expire Num */ + {IGA2_DISPLAY_QUEUE_EXPIRE_NUM_REG_NUM, {{CR94, 0, 6} } } +}; + +/* Definition Fetch Count Registers*/ +static struct fetch_count fetch_count_reg = { + /* IGA1 Fetch Count Register */ + {IGA1_FETCH_COUNT_REG_NUM, {{SR1C, 0, 7}, {SR1D, 0, 1} } }, + /* IGA2 Fetch Count Register */ + {IGA2_FETCH_COUNT_REG_NUM, {{CR65, 0, 7}, {CR67, 2, 3} } } +}; + +static struct rgbLUT palLUT_table[] = { + /* {R,G,B} */ + /* Index 0x00~0x03 */ + {0x00, 0x00, 0x00}, {0x00, 0x00, 0x2A}, {0x00, 0x2A, 0x00}, {0x00, + 0x2A, + 0x2A}, + /* Index 0x04~0x07 */ + {0x2A, 0x00, 0x00}, {0x2A, 0x00, 0x2A}, {0x2A, 0x15, 0x00}, {0x2A, + 0x2A, + 0x2A}, + /* Index 0x08~0x0B */ + {0x15, 0x15, 0x15}, {0x15, 0x15, 0x3F}, {0x15, 0x3F, 0x15}, {0x15, + 0x3F, + 0x3F}, + /* Index 0x0C~0x0F */ + {0x3F, 0x15, 0x15}, {0x3F, 0x15, 0x3F}, {0x3F, 0x3F, 0x15}, {0x3F, + 0x3F, + 0x3F}, + /* Index 0x10~0x13 */ + {0x00, 0x00, 0x00}, {0x05, 0x05, 0x05}, {0x08, 0x08, 0x08}, {0x0B, + 0x0B, + 0x0B}, + /* Index 0x14~0x17 */ + {0x0E, 0x0E, 0x0E}, {0x11, 0x11, 0x11}, {0x14, 0x14, 0x14}, {0x18, + 0x18, + 0x18}, + /* Index 0x18~0x1B */ + {0x1C, 0x1C, 0x1C}, {0x20, 0x20, 0x20}, {0x24, 0x24, 0x24}, {0x28, + 0x28, + 0x28}, + /* Index 0x1C~0x1F */ + {0x2D, 0x2D, 0x2D}, {0x32, 0x32, 0x32}, {0x38, 0x38, 0x38}, {0x3F, + 0x3F, + 0x3F}, + /* Index 0x20~0x23 */ + {0x00, 0x00, 0x3F}, {0x10, 0x00, 0x3F}, {0x1F, 0x00, 0x3F}, {0x2F, + 0x00, + 0x3F}, + /* Index 0x24~0x27 */ + {0x3F, 0x00, 0x3F}, {0x3F, 0x00, 0x2F}, {0x3F, 0x00, 0x1F}, {0x3F, + 0x00, + 0x10}, + /* Index 0x28~0x2B */ + {0x3F, 0x00, 0x00}, {0x3F, 0x10, 0x00}, {0x3F, 0x1F, 0x00}, {0x3F, + 0x2F, + 0x00}, + /* Index 0x2C~0x2F */ + {0x3F, 0x3F, 0x00}, {0x2F, 0x3F, 0x00}, {0x1F, 0x3F, 0x00}, {0x10, + 0x3F, + 0x00}, + /* Index 0x30~0x33 */ + {0x00, 0x3F, 0x00}, {0x00, 0x3F, 0x10}, {0x00, 0x3F, 0x1F}, {0x00, + 0x3F, + 0x2F}, + /* Index 0x34~0x37 */ + {0x00, 0x3F, 0x3F}, {0x00, 0x2F, 0x3F}, {0x00, 0x1F, 0x3F}, {0x00, + 0x10, + 0x3F}, + /* Index 0x38~0x3B */ + {0x1F, 0x1F, 0x3F}, {0x27, 0x1F, 0x3F}, {0x2F, 0x1F, 0x3F}, {0x37, + 0x1F, + 0x3F}, + /* Index 0x3C~0x3F */ + {0x3F, 0x1F, 0x3F}, {0x3F, 0x1F, 0x37}, {0x3F, 0x1F, 0x2F}, {0x3F, + 0x1F, + 0x27}, + /* Index 0x40~0x43 */ + {0x3F, 0x1F, 0x1F}, {0x3F, 0x27, 0x1F}, {0x3F, 0x2F, 0x1F}, {0x3F, + 0x3F, + 0x1F}, + /* Index 0x44~0x47 */ + {0x3F, 0x3F, 0x1F}, {0x37, 0x3F, 0x1F}, {0x2F, 0x3F, 0x1F}, {0x27, + 0x3F, + 0x1F}, + /* Index 0x48~0x4B */ + {0x1F, 0x3F, 0x1F}, {0x1F, 0x3F, 0x27}, {0x1F, 0x3F, 0x2F}, {0x1F, + 0x3F, + 0x37}, + /* Index 0x4C~0x4F */ + {0x1F, 0x3F, 0x3F}, {0x1F, 0x37, 0x3F}, {0x1F, 0x2F, 0x3F}, {0x1F, + 0x27, + 0x3F}, + /* Index 0x50~0x53 */ + {0x2D, 0x2D, 0x3F}, {0x31, 0x2D, 0x3F}, {0x36, 0x2D, 0x3F}, {0x3A, + 0x2D, + 0x3F}, + /* Index 0x54~0x57 */ + {0x3F, 0x2D, 0x3F}, {0x3F, 0x2D, 0x3A}, {0x3F, 0x2D, 0x36}, {0x3F, + 0x2D, + 0x31}, + /* Index 0x58~0x5B */ + {0x3F, 0x2D, 0x2D}, {0x3F, 0x31, 0x2D}, {0x3F, 0x36, 0x2D}, {0x3F, + 0x3A, + 0x2D}, + /* Index 0x5C~0x5F */ + {0x3F, 0x3F, 0x2D}, {0x3A, 0x3F, 0x2D}, {0x36, 0x3F, 0x2D}, {0x31, + 0x3F, + 0x2D}, + /* Index 0x60~0x63 */ + {0x2D, 0x3F, 0x2D}, {0x2D, 0x3F, 0x31}, {0x2D, 0x3F, 0x36}, {0x2D, + 0x3F, + 0x3A}, + /* Index 0x64~0x67 */ + {0x2D, 0x3F, 0x3F}, {0x2D, 0x3A, 0x3F}, {0x2D, 0x36, 0x3F}, {0x2D, + 0x31, + 0x3F}, + /* Index 0x68~0x6B */ + {0x00, 0x00, 0x1C}, {0x07, 0x00, 0x1C}, {0x0E, 0x00, 0x1C}, {0x15, + 0x00, + 0x1C}, + /* Index 0x6C~0x6F */ + {0x1C, 0x00, 0x1C}, {0x1C, 0x00, 0x15}, {0x1C, 0x00, 0x0E}, {0x1C, + 0x00, + 0x07}, + /* Index 0x70~0x73 */ + {0x1C, 0x00, 0x00}, {0x1C, 0x07, 0x00}, {0x1C, 0x0E, 0x00}, {0x1C, + 0x15, + 0x00}, + /* Index 0x74~0x77 */ + {0x1C, 0x1C, 0x00}, {0x15, 0x1C, 0x00}, {0x0E, 0x1C, 0x00}, {0x07, + 0x1C, + 0x00}, + /* Index 0x78~0x7B */ + {0x00, 0x1C, 0x00}, {0x00, 0x1C, 0x07}, {0x00, 0x1C, 0x0E}, {0x00, + 0x1C, + 0x15}, + /* Index 0x7C~0x7F */ + {0x00, 0x1C, 0x1C}, {0x00, 0x15, 0x1C}, {0x00, 0x0E, 0x1C}, {0x00, + 0x07, + 0x1C}, + /* Index 0x80~0x83 */ + {0x0E, 0x0E, 0x1C}, {0x11, 0x0E, 0x1C}, {0x15, 0x0E, 0x1C}, {0x18, + 0x0E, + 0x1C}, + /* Index 0x84~0x87 */ + {0x1C, 0x0E, 0x1C}, {0x1C, 0x0E, 0x18}, {0x1C, 0x0E, 0x15}, {0x1C, + 0x0E, + 0x11}, + /* Index 0x88~0x8B */ + {0x1C, 0x0E, 0x0E}, {0x1C, 0x11, 0x0E}, {0x1C, 0x15, 0x0E}, {0x1C, + 0x18, + 0x0E}, + /* Index 0x8C~0x8F */ + {0x1C, 0x1C, 0x0E}, {0x18, 0x1C, 0x0E}, {0x15, 0x1C, 0x0E}, {0x11, + 0x1C, + 0x0E}, + /* Index 0x90~0x93 */ + {0x0E, 0x1C, 0x0E}, {0x0E, 0x1C, 0x11}, {0x0E, 0x1C, 0x15}, {0x0E, + 0x1C, + 0x18}, + /* Index 0x94~0x97 */ + {0x0E, 0x1C, 0x1C}, {0x0E, 0x18, 0x1C}, {0x0E, 0x15, 0x1C}, {0x0E, + 0x11, + 0x1C}, + /* Index 0x98~0x9B */ + {0x14, 0x14, 0x1C}, {0x16, 0x14, 0x1C}, {0x18, 0x14, 0x1C}, {0x1A, + 0x14, + 0x1C}, + /* Index 0x9C~0x9F */ + {0x1C, 0x14, 0x1C}, {0x1C, 0x14, 0x1A}, {0x1C, 0x14, 0x18}, {0x1C, + 0x14, + 0x16}, + /* Index 0xA0~0xA3 */ + {0x1C, 0x14, 0x14}, {0x1C, 0x16, 0x14}, {0x1C, 0x18, 0x14}, {0x1C, + 0x1A, + 0x14}, + /* Index 0xA4~0xA7 */ + {0x1C, 0x1C, 0x14}, {0x1A, 0x1C, 0x14}, {0x18, 0x1C, 0x14}, {0x16, + 0x1C, + 0x14}, + /* Index 0xA8~0xAB */ + {0x14, 0x1C, 0x14}, {0x14, 0x1C, 0x16}, {0x14, 0x1C, 0x18}, {0x14, + 0x1C, + 0x1A}, + /* Index 0xAC~0xAF */ + {0x14, 0x1C, 0x1C}, {0x14, 0x1A, 0x1C}, {0x14, 0x18, 0x1C}, {0x14, + 0x16, + 0x1C}, + /* Index 0xB0~0xB3 */ + {0x00, 0x00, 0x10}, {0x04, 0x00, 0x10}, {0x08, 0x00, 0x10}, {0x0C, + 0x00, + 0x10}, + /* Index 0xB4~0xB7 */ + {0x10, 0x00, 0x10}, {0x10, 0x00, 0x0C}, {0x10, 0x00, 0x08}, {0x10, + 0x00, + 0x04}, + /* Index 0xB8~0xBB */ + {0x10, 0x00, 0x00}, {0x10, 0x04, 0x00}, {0x10, 0x08, 0x00}, {0x10, + 0x0C, + 0x00}, + /* Index 0xBC~0xBF */ + {0x10, 0x10, 0x00}, {0x0C, 0x10, 0x00}, {0x08, 0x10, 0x00}, {0x04, + 0x10, + 0x00}, + /* Index 0xC0~0xC3 */ + {0x00, 0x10, 0x00}, {0x00, 0x10, 0x04}, {0x00, 0x10, 0x08}, {0x00, + 0x10, + 0x0C}, + /* Index 0xC4~0xC7 */ + {0x00, 0x10, 0x10}, {0x00, 0x0C, 0x10}, {0x00, 0x08, 0x10}, {0x00, + 0x04, + 0x10}, + /* Index 0xC8~0xCB */ + {0x08, 0x08, 0x10}, {0x0A, 0x08, 0x10}, {0x0C, 0x08, 0x10}, {0x0E, + 0x08, + 0x10}, + /* Index 0xCC~0xCF */ + {0x10, 0x08, 0x10}, {0x10, 0x08, 0x0E}, {0x10, 0x08, 0x0C}, {0x10, + 0x08, + 0x0A}, + /* Index 0xD0~0xD3 */ + {0x10, 0x08, 0x08}, {0x10, 0x0A, 0x08}, {0x10, 0x0C, 0x08}, {0x10, + 0x0E, + 0x08}, + /* Index 0xD4~0xD7 */ + {0x10, 0x10, 0x08}, {0x0E, 0x10, 0x08}, {0x0C, 0x10, 0x08}, {0x0A, + 0x10, + 0x08}, + /* Index 0xD8~0xDB */ + {0x08, 0x10, 0x08}, {0x08, 0x10, 0x0A}, {0x08, 0x10, 0x0C}, {0x08, + 0x10, + 0x0E}, + /* Index 0xDC~0xDF */ + {0x08, 0x10, 0x10}, {0x08, 0x0E, 0x10}, {0x08, 0x0C, 0x10}, {0x08, + 0x0A, + 0x10}, + /* Index 0xE0~0xE3 */ + {0x0B, 0x0B, 0x10}, {0x0C, 0x0B, 0x10}, {0x0D, 0x0B, 0x10}, {0x0F, + 0x0B, + 0x10}, + /* Index 0xE4~0xE7 */ + {0x10, 0x0B, 0x10}, {0x10, 0x0B, 0x0F}, {0x10, 0x0B, 0x0D}, {0x10, + 0x0B, + 0x0C}, + /* Index 0xE8~0xEB */ + {0x10, 0x0B, 0x0B}, {0x10, 0x0C, 0x0B}, {0x10, 0x0D, 0x0B}, {0x10, + 0x0F, + 0x0B}, + /* Index 0xEC~0xEF */ + {0x10, 0x10, 0x0B}, {0x0F, 0x10, 0x0B}, {0x0D, 0x10, 0x0B}, {0x0C, + 0x10, + 0x0B}, + /* Index 0xF0~0xF3 */ + {0x0B, 0x10, 0x0B}, {0x0B, 0x10, 0x0C}, {0x0B, 0x10, 0x0D}, {0x0B, + 0x10, + 0x0F}, + /* Index 0xF4~0xF7 */ + {0x0B, 0x10, 0x10}, {0x0B, 0x0F, 0x10}, {0x0B, 0x0D, 0x10}, {0x0B, + 0x0C, + 0x10}, + /* Index 0xF8~0xFB */ + {0x00, 0x00, 0x00}, {0x00, 0x00, 0x00}, {0x00, 0x00, 0x00}, {0x00, + 0x00, + 0x00}, + /* Index 0xFC~0xFF */ + {0x00, 0x00, 0x00}, {0x00, 0x00, 0x00}, {0x00, 0x00, 0x00}, {0x00, + 0x00, + 0x00} +}; + +static struct via_device_mapping device_mapping[] = { + {VIA_LDVP0, "LDVP0"}, + {VIA_LDVP1, "LDVP1"}, + {VIA_DVP0, "DVP0"}, + {VIA_CRT, "CRT"}, + {VIA_DVP1, "DVP1"}, + {VIA_LVDS1, "LVDS1"}, + {VIA_LVDS2, "LVDS2"} +}; + +/* structure with function pointers to support clock control */ +static struct via_clock clock; + +static void load_fix_bit_crtc_reg(void); +static void init_gfx_chip_info(int chip_type); +static void init_tmds_chip_info(void); +static void init_lvds_chip_info(void); +static void device_screen_off(void); +static void device_screen_on(void); +static void set_display_channel(void); +static void device_off(void); +static void device_on(void); +static void enable_second_display_channel(void); +static void disable_second_display_channel(void); + +void viafb_lock_crt(void) +{ + viafb_write_reg_mask(CR11, VIACR, BIT7, BIT7); +} + +void viafb_unlock_crt(void) +{ + viafb_write_reg_mask(CR11, VIACR, 0, BIT7); + viafb_write_reg_mask(CR47, VIACR, 0, BIT0); +} + +static void write_dac_reg(u8 index, u8 r, u8 g, u8 b) +{ + outb(index, LUT_INDEX_WRITE); + outb(r, LUT_DATA); + outb(g, LUT_DATA); + outb(b, LUT_DATA); +} + +static u32 get_dvi_devices(int output_interface) +{ + switch (output_interface) { + case INTERFACE_DVP0: + return VIA_DVP0 | VIA_LDVP0; + + case INTERFACE_DVP1: + if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266) + return VIA_LDVP1; + else + return VIA_DVP1; + + case INTERFACE_DFP_HIGH: + if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266) + return 0; + else + return VIA_LVDS2 | VIA_DVP0; + + case INTERFACE_DFP_LOW: + if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266) + return 0; + else + return VIA_DVP1 | VIA_LVDS1; + + case INTERFACE_TMDS: + return VIA_LVDS1; + } + + return 0; +} + +static u32 get_lcd_devices(int output_interface) +{ + switch (output_interface) { + case INTERFACE_DVP0: + return VIA_DVP0; + + case INTERFACE_DVP1: + return VIA_DVP1; + + case INTERFACE_DFP_HIGH: + return VIA_LVDS2 | VIA_DVP0; + + case INTERFACE_DFP_LOW: + return VIA_LVDS1 | VIA_DVP1; + + case INTERFACE_DFP: + return VIA_LVDS1 | VIA_LVDS2; + + case INTERFACE_LVDS0: + case INTERFACE_LVDS0LVDS1: + return VIA_LVDS1; + + case INTERFACE_LVDS1: + return VIA_LVDS2; + } + + return 0; +} + +/*Set IGA path for each device*/ +void viafb_set_iga_path(void) +{ + int crt_iga_path = 0; + + if (viafb_SAMM_ON == 1) { + if (viafb_CRT_ON) { + if (viafb_primary_dev == CRT_Device) + crt_iga_path = IGA1; + else + crt_iga_path = IGA2; + } + + if (viafb_DVI_ON) { + if (viafb_primary_dev == DVI_Device) + viaparinfo->tmds_setting_info->iga_path = IGA1; + else + viaparinfo->tmds_setting_info->iga_path = IGA2; + } + + if (viafb_LCD_ON) { + if (viafb_primary_dev == LCD_Device) { + if (viafb_dual_fb && + (viaparinfo->chip_info->gfx_chip_name == + UNICHROME_CLE266)) { + viaparinfo-> + lvds_setting_info->iga_path = IGA2; + crt_iga_path = IGA1; + viaparinfo-> + tmds_setting_info->iga_path = IGA1; + } else + viaparinfo-> + lvds_setting_info->iga_path = IGA1; + } else { + viaparinfo->lvds_setting_info->iga_path = IGA2; + } + } + if (viafb_LCD2_ON) { + if (LCD2_Device == viafb_primary_dev) + viaparinfo->lvds_setting_info2->iga_path = IGA1; + else + viaparinfo->lvds_setting_info2->iga_path = IGA2; + } + } else { + viafb_SAMM_ON = 0; + + if (viafb_CRT_ON && viafb_LCD_ON) { + crt_iga_path = IGA1; + viaparinfo->lvds_setting_info->iga_path = IGA2; + } else if (viafb_CRT_ON && viafb_DVI_ON) { + crt_iga_path = IGA1; + viaparinfo->tmds_setting_info->iga_path = IGA2; + } else if (viafb_LCD_ON && viafb_DVI_ON) { + viaparinfo->tmds_setting_info->iga_path = IGA1; + viaparinfo->lvds_setting_info->iga_path = IGA2; + } else if (viafb_LCD_ON && viafb_LCD2_ON) { + viaparinfo->lvds_setting_info->iga_path = IGA2; + viaparinfo->lvds_setting_info2->iga_path = IGA2; + } else if (viafb_CRT_ON) { + crt_iga_path = IGA1; + } else if (viafb_LCD_ON) { + viaparinfo->lvds_setting_info->iga_path = IGA2; + } else if (viafb_DVI_ON) { + viaparinfo->tmds_setting_info->iga_path = IGA1; + } + } + + viaparinfo->shared->iga1_devices = 0; + viaparinfo->shared->iga2_devices = 0; + if (viafb_CRT_ON) { + if (crt_iga_path == IGA1) + viaparinfo->shared->iga1_devices |= VIA_CRT; + else + viaparinfo->shared->iga2_devices |= VIA_CRT; + } + + if (viafb_DVI_ON) { + if (viaparinfo->tmds_setting_info->iga_path == IGA1) + viaparinfo->shared->iga1_devices |= get_dvi_devices( + viaparinfo->chip_info-> + tmds_chip_info.output_interface); + else + viaparinfo->shared->iga2_devices |= get_dvi_devices( + viaparinfo->chip_info-> + tmds_chip_info.output_interface); + } + + if (viafb_LCD_ON) { + if (viaparinfo->lvds_setting_info->iga_path == IGA1) + viaparinfo->shared->iga1_devices |= get_lcd_devices( + viaparinfo->chip_info-> + lvds_chip_info.output_interface); + else + viaparinfo->shared->iga2_devices |= get_lcd_devices( + viaparinfo->chip_info-> + lvds_chip_info.output_interface); + } + + if (viafb_LCD2_ON) { + if (viaparinfo->lvds_setting_info2->iga_path == IGA1) + viaparinfo->shared->iga1_devices |= get_lcd_devices( + viaparinfo->chip_info-> + lvds_chip_info2.output_interface); + else + viaparinfo->shared->iga2_devices |= get_lcd_devices( + viaparinfo->chip_info-> + lvds_chip_info2.output_interface); + } + + /* looks like the OLPC has its display wired to DVP1 and LVDS2 */ + if (machine_is_olpc()) + viaparinfo->shared->iga2_devices = VIA_DVP1 | VIA_LVDS2; +} + +static void set_color_register(u8 index, u8 red, u8 green, u8 blue) +{ + outb(0xFF, 0x3C6); /* bit mask of palette */ + outb(index, 0x3C8); + outb(red, 0x3C9); + outb(green, 0x3C9); + outb(blue, 0x3C9); +} + +void viafb_set_primary_color_register(u8 index, u8 red, u8 green, u8 blue) +{ + viafb_write_reg_mask(0x1A, VIASR, 0x00, 0x01); + set_color_register(index, red, green, blue); +} + +void viafb_set_secondary_color_register(u8 index, u8 red, u8 green, u8 blue) +{ + viafb_write_reg_mask(0x1A, VIASR, 0x01, 0x01); + set_color_register(index, red, green, blue); +} + +static void set_source_common(u8 index, u8 offset, u8 iga) +{ + u8 value, mask = 1 << offset; + + switch (iga) { + case IGA1: + value = 0x00; + break; + case IGA2: + value = mask; + break; + default: + printk(KERN_WARNING "viafb: Unsupported source: %d\n", iga); + return; + } + + via_write_reg_mask(VIACR, index, value, mask); +} + +static void set_crt_source(u8 iga) +{ + u8 value; + + switch (iga) { + case IGA1: + value = 0x00; + break; + case IGA2: + value = 0x40; + break; + default: + printk(KERN_WARNING "viafb: Unsupported source: %d\n", iga); + return; + } + + via_write_reg_mask(VIASR, 0x16, value, 0x40); +} + +static inline void set_ldvp0_source(u8 iga) +{ + set_source_common(0x6C, 7, iga); +} + +static inline void set_ldvp1_source(u8 iga) +{ + set_source_common(0x93, 7, iga); +} + +static inline void set_dvp0_source(u8 iga) +{ + set_source_common(0x96, 4, iga); +} + +static inline void set_dvp1_source(u8 iga) +{ + set_source_common(0x9B, 4, iga); +} + +static inline void set_lvds1_source(u8 iga) +{ + set_source_common(0x99, 4, iga); +} + +static inline void set_lvds2_source(u8 iga) +{ + set_source_common(0x97, 4, iga); +} + +void via_set_source(u32 devices, u8 iga) +{ + if (devices & VIA_LDVP0) + set_ldvp0_source(iga); + if (devices & VIA_LDVP1) + set_ldvp1_source(iga); + if (devices & VIA_DVP0) + set_dvp0_source(iga); + if (devices & VIA_CRT) + set_crt_source(iga); + if (devices & VIA_DVP1) + set_dvp1_source(iga); + if (devices & VIA_LVDS1) + set_lvds1_source(iga); + if (devices & VIA_LVDS2) + set_lvds2_source(iga); +} + +static void set_crt_state(u8 state) +{ + u8 value; + + switch (state) { + case VIA_STATE_ON: + value = 0x00; + break; + case VIA_STATE_STANDBY: + value = 0x10; + break; + case VIA_STATE_SUSPEND: + value = 0x20; + break; + case VIA_STATE_OFF: + value = 0x30; + break; + default: + return; + } + + via_write_reg_mask(VIACR, 0x36, value, 0x30); +} + +static void set_dvp0_state(u8 state) +{ + u8 value; + + switch (state) { + case VIA_STATE_ON: + value = 0xC0; + break; + case VIA_STATE_OFF: + value = 0x00; + break; + default: + return; + } + + via_write_reg_mask(VIASR, 0x1E, value, 0xC0); +} + +static void set_dvp1_state(u8 state) +{ + u8 value; + + switch (state) { + case VIA_STATE_ON: + value = 0x30; + break; + case VIA_STATE_OFF: + value = 0x00; + break; + default: + return; + } + + via_write_reg_mask(VIASR, 0x1E, value, 0x30); +} + +static void set_lvds1_state(u8 state) +{ + u8 value; + + switch (state) { + case VIA_STATE_ON: + value = 0x03; + break; + case VIA_STATE_OFF: + value = 0x00; + break; + default: + return; + } + + via_write_reg_mask(VIASR, 0x2A, value, 0x03); +} + +static void set_lvds2_state(u8 state) +{ + u8 value; + + switch (state) { + case VIA_STATE_ON: + value = 0x0C; + break; + case VIA_STATE_OFF: + value = 0x00; + break; + default: + return; + } + + via_write_reg_mask(VIASR, 0x2A, value, 0x0C); +} + +void via_set_state(u32 devices, u8 state) +{ + /* + TODO: Can we enable/disable these devices? How? + if (devices & VIA_LDVP0) + if (devices & VIA_LDVP1) + */ + if (devices & VIA_DVP0) + set_dvp0_state(state); + if (devices & VIA_CRT) + set_crt_state(state); + if (devices & VIA_DVP1) + set_dvp1_state(state); + if (devices & VIA_LVDS1) + set_lvds1_state(state); + if (devices & VIA_LVDS2) + set_lvds2_state(state); +} + +void via_set_sync_polarity(u32 devices, u8 polarity) +{ + if (polarity & ~(VIA_HSYNC_NEGATIVE | VIA_VSYNC_NEGATIVE)) { + printk(KERN_WARNING "viafb: Unsupported polarity: %d\n", + polarity); + return; + } + + if (devices & VIA_CRT) + via_write_misc_reg_mask(polarity << 6, 0xC0); + if (devices & VIA_DVP1) + via_write_reg_mask(VIACR, 0x9B, polarity << 5, 0x60); + if (devices & VIA_LVDS1) + via_write_reg_mask(VIACR, 0x99, polarity << 5, 0x60); + if (devices & VIA_LVDS2) + via_write_reg_mask(VIACR, 0x97, polarity << 5, 0x60); +} + +u32 via_parse_odev(char *input, char **end) +{ + char *ptr = input; + u32 odev = 0; + bool next = true; + int i, len; + + while (next) { + next = false; + for (i = 0; i < ARRAY_SIZE(device_mapping); i++) { + len = strlen(device_mapping[i].name); + if (!strncmp(ptr, device_mapping[i].name, len)) { + odev |= device_mapping[i].device; + ptr += len; + if (*ptr == ',') { + ptr++; + next = true; + } + } + } + } + + *end = ptr; + return odev; +} + +void via_odev_to_seq(struct seq_file *m, u32 odev) +{ + int i, count = 0; + + for (i = 0; i < ARRAY_SIZE(device_mapping); i++) { + if (odev & device_mapping[i].device) { + if (count > 0) + seq_putc(m, ','); + + seq_puts(m, device_mapping[i].name); + count++; + } + } + + seq_putc(m, '\n'); +} + +static void load_fix_bit_crtc_reg(void) +{ + viafb_unlock_crt(); + + /* always set to 1 */ + viafb_write_reg_mask(CR03, VIACR, 0x80, BIT7); + /* line compare should set all bits = 1 (extend modes) */ + viafb_write_reg_mask(CR35, VIACR, 0x10, BIT4); + /* line compare should set all bits = 1 (extend modes) */ + viafb_write_reg_mask(CR33, VIACR, 0x06, BIT0 + BIT1 + BIT2); + /*viafb_write_reg_mask(CR32, VIACR, 0x01, BIT0); */ + + viafb_lock_crt(); + + /* If K8M800, enable Prefetch Mode. */ + if ((viaparinfo->chip_info->gfx_chip_name == UNICHROME_K800) + || (viaparinfo->chip_info->gfx_chip_name == UNICHROME_K8M890)) + viafb_write_reg_mask(CR33, VIACR, 0x08, BIT3); + if ((viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266) + && (viaparinfo->chip_info->gfx_chip_revision == CLE266_REVISION_AX)) + viafb_write_reg_mask(SR1A, VIASR, 0x02, BIT1); + +} + +void viafb_load_reg(int timing_value, int viafb_load_reg_num, + struct io_register *reg, + int io_type) +{ + int reg_mask; + int bit_num = 0; + int data; + int i, j; + int shift_next_reg; + int start_index, end_index, cr_index; + u16 get_bit; + + for (i = 0; i < viafb_load_reg_num; i++) { + reg_mask = 0; + data = 0; + start_index = reg[i].start_bit; + end_index = reg[i].end_bit; + cr_index = reg[i].io_addr; + + shift_next_reg = bit_num; + for (j = start_index; j <= end_index; j++) { + /*if (bit_num==8) timing_value = timing_value >>8; */ + reg_mask = reg_mask | (BIT0 << j); + get_bit = (timing_value & (BIT0 << bit_num)); + data = + data | ((get_bit >> shift_next_reg) << start_index); + bit_num++; + } + if (io_type == VIACR) + viafb_write_reg_mask(cr_index, VIACR, data, reg_mask); + else + viafb_write_reg_mask(cr_index, VIASR, data, reg_mask); + } + +} + +/* Write Registers */ +void viafb_write_regx(struct io_reg RegTable[], int ItemNum) +{ + int i; + + /*DEBUG_MSG(KERN_INFO "Table Size : %x!!\n",ItemNum ); */ + + for (i = 0; i < ItemNum; i++) + via_write_reg_mask(RegTable[i].port, RegTable[i].index, + RegTable[i].value, RegTable[i].mask); +} + +void viafb_load_fetch_count_reg(int h_addr, int bpp_byte, int set_iga) +{ + int reg_value; + int viafb_load_reg_num; + struct io_register *reg = NULL; + + switch (set_iga) { + case IGA1: + reg_value = IGA1_FETCH_COUNT_FORMULA(h_addr, bpp_byte); + viafb_load_reg_num = fetch_count_reg. + iga1_fetch_count_reg.reg_num; + reg = fetch_count_reg.iga1_fetch_count_reg.reg; + viafb_load_reg(reg_value, viafb_load_reg_num, reg, VIASR); + break; + case IGA2: + reg_value = IGA2_FETCH_COUNT_FORMULA(h_addr, bpp_byte); + viafb_load_reg_num = fetch_count_reg. + iga2_fetch_count_reg.reg_num; + reg = fetch_count_reg.iga2_fetch_count_reg.reg; + viafb_load_reg(reg_value, viafb_load_reg_num, reg, VIACR); + break; + } + +} + +void viafb_load_FIFO_reg(int set_iga, int hor_active, int ver_active) +{ + int reg_value; + int viafb_load_reg_num; + struct io_register *reg = NULL; + int iga1_fifo_max_depth = 0, iga1_fifo_threshold = + 0, iga1_fifo_high_threshold = 0, iga1_display_queue_expire_num = 0; + int iga2_fifo_max_depth = 0, iga2_fifo_threshold = + 0, iga2_fifo_high_threshold = 0, iga2_display_queue_expire_num = 0; + + if (set_iga == IGA1) { + if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_K800) { + iga1_fifo_max_depth = K800_IGA1_FIFO_MAX_DEPTH; + iga1_fifo_threshold = K800_IGA1_FIFO_THRESHOLD; + iga1_fifo_high_threshold = + K800_IGA1_FIFO_HIGH_THRESHOLD; + /* If resolution > 1280x1024, expire length = 64, else + expire length = 128 */ + if ((hor_active > 1280) && (ver_active > 1024)) + iga1_display_queue_expire_num = 16; + else + iga1_display_queue_expire_num = + K800_IGA1_DISPLAY_QUEUE_EXPIRE_NUM; + + } + + if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_PM800) { + iga1_fifo_max_depth = P880_IGA1_FIFO_MAX_DEPTH; + iga1_fifo_threshold = P880_IGA1_FIFO_THRESHOLD; + iga1_fifo_high_threshold = + P880_IGA1_FIFO_HIGH_THRESHOLD; + iga1_display_queue_expire_num = + P880_IGA1_DISPLAY_QUEUE_EXPIRE_NUM; + + /* If resolution > 1280x1024, expire length = 64, else + expire length = 128 */ + if ((hor_active > 1280) && (ver_active > 1024)) + iga1_display_queue_expire_num = 16; + else + iga1_display_queue_expire_num = + P880_IGA1_DISPLAY_QUEUE_EXPIRE_NUM; + } + + if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CN700) { + iga1_fifo_max_depth = CN700_IGA1_FIFO_MAX_DEPTH; + iga1_fifo_threshold = CN700_IGA1_FIFO_THRESHOLD; + iga1_fifo_high_threshold = + CN700_IGA1_FIFO_HIGH_THRESHOLD; + + /* If resolution > 1280x1024, expire length = 64, + else expire length = 128 */ + if ((hor_active > 1280) && (ver_active > 1024)) + iga1_display_queue_expire_num = 16; + else + iga1_display_queue_expire_num = + CN700_IGA1_DISPLAY_QUEUE_EXPIRE_NUM; + } + + if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CX700) { + iga1_fifo_max_depth = CX700_IGA1_FIFO_MAX_DEPTH; + iga1_fifo_threshold = CX700_IGA1_FIFO_THRESHOLD; + iga1_fifo_high_threshold = + CX700_IGA1_FIFO_HIGH_THRESHOLD; + iga1_display_queue_expire_num = + CX700_IGA1_DISPLAY_QUEUE_EXPIRE_NUM; + } + + if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_K8M890) { + iga1_fifo_max_depth = K8M890_IGA1_FIFO_MAX_DEPTH; + iga1_fifo_threshold = K8M890_IGA1_FIFO_THRESHOLD; + iga1_fifo_high_threshold = + K8M890_IGA1_FIFO_HIGH_THRESHOLD; + iga1_display_queue_expire_num = + K8M890_IGA1_DISPLAY_QUEUE_EXPIRE_NUM; + } + + if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_P4M890) { + iga1_fifo_max_depth = P4M890_IGA1_FIFO_MAX_DEPTH; + iga1_fifo_threshold = P4M890_IGA1_FIFO_THRESHOLD; + iga1_fifo_high_threshold = + P4M890_IGA1_FIFO_HIGH_THRESHOLD; + iga1_display_queue_expire_num = + P4M890_IGA1_DISPLAY_QUEUE_EXPIRE_NUM; + } + + if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_P4M900) { + iga1_fifo_max_depth = P4M900_IGA1_FIFO_MAX_DEPTH; + iga1_fifo_threshold = P4M900_IGA1_FIFO_THRESHOLD; + iga1_fifo_high_threshold = + P4M900_IGA1_FIFO_HIGH_THRESHOLD; + iga1_display_queue_expire_num = + P4M900_IGA1_DISPLAY_QUEUE_EXPIRE_NUM; + } + + if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_VX800) { + iga1_fifo_max_depth = VX800_IGA1_FIFO_MAX_DEPTH; + iga1_fifo_threshold = VX800_IGA1_FIFO_THRESHOLD; + iga1_fifo_high_threshold = + VX800_IGA1_FIFO_HIGH_THRESHOLD; + iga1_display_queue_expire_num = + VX800_IGA1_DISPLAY_QUEUE_EXPIRE_NUM; + } + + if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_VX855) { + iga1_fifo_max_depth = VX855_IGA1_FIFO_MAX_DEPTH; + iga1_fifo_threshold = VX855_IGA1_FIFO_THRESHOLD; + iga1_fifo_high_threshold = + VX855_IGA1_FIFO_HIGH_THRESHOLD; + iga1_display_queue_expire_num = + VX855_IGA1_DISPLAY_QUEUE_EXPIRE_NUM; + } + + if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_VX900) { + iga1_fifo_max_depth = VX900_IGA1_FIFO_MAX_DEPTH; + iga1_fifo_threshold = VX900_IGA1_FIFO_THRESHOLD; + iga1_fifo_high_threshold = + VX900_IGA1_FIFO_HIGH_THRESHOLD; + iga1_display_queue_expire_num = + VX900_IGA1_DISPLAY_QUEUE_EXPIRE_NUM; + } + + /* Set Display FIFO Depath Select */ + reg_value = IGA1_FIFO_DEPTH_SELECT_FORMULA(iga1_fifo_max_depth); + viafb_load_reg_num = + display_fifo_depth_reg.iga1_fifo_depth_select_reg.reg_num; + reg = display_fifo_depth_reg.iga1_fifo_depth_select_reg.reg; + viafb_load_reg(reg_value, viafb_load_reg_num, reg, VIASR); + + /* Set Display FIFO Threshold Select */ + reg_value = IGA1_FIFO_THRESHOLD_FORMULA(iga1_fifo_threshold); + viafb_load_reg_num = + fifo_threshold_select_reg. + iga1_fifo_threshold_select_reg.reg_num; + reg = + fifo_threshold_select_reg. + iga1_fifo_threshold_select_reg.reg; + viafb_load_reg(reg_value, viafb_load_reg_num, reg, VIASR); + + /* Set FIFO High Threshold Select */ + reg_value = + IGA1_FIFO_HIGH_THRESHOLD_FORMULA(iga1_fifo_high_threshold); + viafb_load_reg_num = + fifo_high_threshold_select_reg. + iga1_fifo_high_threshold_select_reg.reg_num; + reg = + fifo_high_threshold_select_reg. + iga1_fifo_high_threshold_select_reg.reg; + viafb_load_reg(reg_value, viafb_load_reg_num, reg, VIASR); + + /* Set Display Queue Expire Num */ + reg_value = + IGA1_DISPLAY_QUEUE_EXPIRE_NUM_FORMULA + (iga1_display_queue_expire_num); + viafb_load_reg_num = + display_queue_expire_num_reg. + iga1_display_queue_expire_num_reg.reg_num; + reg = + display_queue_expire_num_reg. + iga1_display_queue_expire_num_reg.reg; + viafb_load_reg(reg_value, viafb_load_reg_num, reg, VIASR); + + } else { + if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_K800) { + iga2_fifo_max_depth = K800_IGA2_FIFO_MAX_DEPTH; + iga2_fifo_threshold = K800_IGA2_FIFO_THRESHOLD; + iga2_fifo_high_threshold = + K800_IGA2_FIFO_HIGH_THRESHOLD; + + /* If resolution > 1280x1024, expire length = 64, + else expire length = 128 */ + if ((hor_active > 1280) && (ver_active > 1024)) + iga2_display_queue_expire_num = 16; + else + iga2_display_queue_expire_num = + K800_IGA2_DISPLAY_QUEUE_EXPIRE_NUM; + } + + if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_PM800) { + iga2_fifo_max_depth = P880_IGA2_FIFO_MAX_DEPTH; + iga2_fifo_threshold = P880_IGA2_FIFO_THRESHOLD; + iga2_fifo_high_threshold = + P880_IGA2_FIFO_HIGH_THRESHOLD; + + /* If resolution > 1280x1024, expire length = 64, + else expire length = 128 */ + if ((hor_active > 1280) && (ver_active > 1024)) + iga2_display_queue_expire_num = 16; + else + iga2_display_queue_expire_num = + P880_IGA2_DISPLAY_QUEUE_EXPIRE_NUM; + } + + if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CN700) { + iga2_fifo_max_depth = CN700_IGA2_FIFO_MAX_DEPTH; + iga2_fifo_threshold = CN700_IGA2_FIFO_THRESHOLD; + iga2_fifo_high_threshold = + CN700_IGA2_FIFO_HIGH_THRESHOLD; + + /* If resolution > 1280x1024, expire length = 64, + else expire length = 128 */ + if ((hor_active > 1280) && (ver_active > 1024)) + iga2_display_queue_expire_num = 16; + else + iga2_display_queue_expire_num = + CN700_IGA2_DISPLAY_QUEUE_EXPIRE_NUM; + } + + if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CX700) { + iga2_fifo_max_depth = CX700_IGA2_FIFO_MAX_DEPTH; + iga2_fifo_threshold = CX700_IGA2_FIFO_THRESHOLD; + iga2_fifo_high_threshold = + CX700_IGA2_FIFO_HIGH_THRESHOLD; + iga2_display_queue_expire_num = + CX700_IGA2_DISPLAY_QUEUE_EXPIRE_NUM; + } + + if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_K8M890) { + iga2_fifo_max_depth = K8M890_IGA2_FIFO_MAX_DEPTH; + iga2_fifo_threshold = K8M890_IGA2_FIFO_THRESHOLD; + iga2_fifo_high_threshold = + K8M890_IGA2_FIFO_HIGH_THRESHOLD; + iga2_display_queue_expire_num = + K8M890_IGA2_DISPLAY_QUEUE_EXPIRE_NUM; + } + + if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_P4M890) { + iga2_fifo_max_depth = P4M890_IGA2_FIFO_MAX_DEPTH; + iga2_fifo_threshold = P4M890_IGA2_FIFO_THRESHOLD; + iga2_fifo_high_threshold = + P4M890_IGA2_FIFO_HIGH_THRESHOLD; + iga2_display_queue_expire_num = + P4M890_IGA2_DISPLAY_QUEUE_EXPIRE_NUM; + } + + if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_P4M900) { + iga2_fifo_max_depth = P4M900_IGA2_FIFO_MAX_DEPTH; + iga2_fifo_threshold = P4M900_IGA2_FIFO_THRESHOLD; + iga2_fifo_high_threshold = + P4M900_IGA2_FIFO_HIGH_THRESHOLD; + iga2_display_queue_expire_num = + P4M900_IGA2_DISPLAY_QUEUE_EXPIRE_NUM; + } + + if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_VX800) { + iga2_fifo_max_depth = VX800_IGA2_FIFO_MAX_DEPTH; + iga2_fifo_threshold = VX800_IGA2_FIFO_THRESHOLD; + iga2_fifo_high_threshold = + VX800_IGA2_FIFO_HIGH_THRESHOLD; + iga2_display_queue_expire_num = + VX800_IGA2_DISPLAY_QUEUE_EXPIRE_NUM; + } + + if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_VX855) { + iga2_fifo_max_depth = VX855_IGA2_FIFO_MAX_DEPTH; + iga2_fifo_threshold = VX855_IGA2_FIFO_THRESHOLD; + iga2_fifo_high_threshold = + VX855_IGA2_FIFO_HIGH_THRESHOLD; + iga2_display_queue_expire_num = + VX855_IGA2_DISPLAY_QUEUE_EXPIRE_NUM; + } + + if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_VX900) { + iga2_fifo_max_depth = VX900_IGA2_FIFO_MAX_DEPTH; + iga2_fifo_threshold = VX900_IGA2_FIFO_THRESHOLD; + iga2_fifo_high_threshold = + VX900_IGA2_FIFO_HIGH_THRESHOLD; + iga2_display_queue_expire_num = + VX900_IGA2_DISPLAY_QUEUE_EXPIRE_NUM; + } + + if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_K800) { + /* Set Display FIFO Depath Select */ + reg_value = + IGA2_FIFO_DEPTH_SELECT_FORMULA(iga2_fifo_max_depth) + - 1; + /* Patch LCD in IGA2 case */ + viafb_load_reg_num = + display_fifo_depth_reg. + iga2_fifo_depth_select_reg.reg_num; + reg = + display_fifo_depth_reg. + iga2_fifo_depth_select_reg.reg; + viafb_load_reg(reg_value, + viafb_load_reg_num, reg, VIACR); + } else { + + /* Set Display FIFO Depath Select */ + reg_value = + IGA2_FIFO_DEPTH_SELECT_FORMULA(iga2_fifo_max_depth); + viafb_load_reg_num = + display_fifo_depth_reg. + iga2_fifo_depth_select_reg.reg_num; + reg = + display_fifo_depth_reg. + iga2_fifo_depth_select_reg.reg; + viafb_load_reg(reg_value, + viafb_load_reg_num, reg, VIACR); + } + + /* Set Display FIFO Threshold Select */ + reg_value = IGA2_FIFO_THRESHOLD_FORMULA(iga2_fifo_threshold); + viafb_load_reg_num = + fifo_threshold_select_reg. + iga2_fifo_threshold_select_reg.reg_num; + reg = + fifo_threshold_select_reg. + iga2_fifo_threshold_select_reg.reg; + viafb_load_reg(reg_value, viafb_load_reg_num, reg, VIACR); + + /* Set FIFO High Threshold Select */ + reg_value = + IGA2_FIFO_HIGH_THRESHOLD_FORMULA(iga2_fifo_high_threshold); + viafb_load_reg_num = + fifo_high_threshold_select_reg. + iga2_fifo_high_threshold_select_reg.reg_num; + reg = + fifo_high_threshold_select_reg. + iga2_fifo_high_threshold_select_reg.reg; + viafb_load_reg(reg_value, viafb_load_reg_num, reg, VIACR); + + /* Set Display Queue Expire Num */ + reg_value = + IGA2_DISPLAY_QUEUE_EXPIRE_NUM_FORMULA + (iga2_display_queue_expire_num); + viafb_load_reg_num = + display_queue_expire_num_reg. + iga2_display_queue_expire_num_reg.reg_num; + reg = + display_queue_expire_num_reg. + iga2_display_queue_expire_num_reg.reg; + viafb_load_reg(reg_value, viafb_load_reg_num, reg, VIACR); + + } + +} + +static struct via_pll_config get_pll_config(struct pll_limit *limits, int size, + int clk) +{ + struct via_pll_config cur, up, down, best = {0, 1, 0}; + const u32 f0 = 14318180; /* X1 frequency */ + int i, f; + + for (i = 0; i < size; i++) { + cur.rshift = limits[i].rshift; + cur.divisor = limits[i].divisor; + cur.multiplier = clk / ((f0 / cur.divisor)>>cur.rshift); + f = abs(get_pll_output_frequency(f0, cur) - clk); + up = down = cur; + up.multiplier++; + down.multiplier--; + if (abs(get_pll_output_frequency(f0, up) - clk) < f) + cur = up; + else if (abs(get_pll_output_frequency(f0, down) - clk) < f) + cur = down; + + if (cur.multiplier < limits[i].multiplier_min) + cur.multiplier = limits[i].multiplier_min; + else if (cur.multiplier > limits[i].multiplier_max) + cur.multiplier = limits[i].multiplier_max; + + f = abs(get_pll_output_frequency(f0, cur) - clk); + if (f < abs(get_pll_output_frequency(f0, best) - clk)) + best = cur; + } + + return best; +} + +static struct via_pll_config get_best_pll_config(int clk) +{ + struct via_pll_config config; + + switch (viaparinfo->chip_info->gfx_chip_name) { + case UNICHROME_CLE266: + case UNICHROME_K400: + config = get_pll_config(cle266_pll_limits, + ARRAY_SIZE(cle266_pll_limits), clk); + break; + case UNICHROME_K800: + case UNICHROME_PM800: + case UNICHROME_CN700: + config = get_pll_config(k800_pll_limits, + ARRAY_SIZE(k800_pll_limits), clk); + break; + case UNICHROME_CX700: + case UNICHROME_CN750: + case UNICHROME_K8M890: + case UNICHROME_P4M890: + case UNICHROME_P4M900: + case UNICHROME_VX800: + config = get_pll_config(cx700_pll_limits, + ARRAY_SIZE(cx700_pll_limits), clk); + break; + case UNICHROME_VX855: + case UNICHROME_VX900: + config = get_pll_config(vx855_pll_limits, + ARRAY_SIZE(vx855_pll_limits), clk); + break; + } + + return config; +} + +/* Set VCLK*/ +void viafb_set_vclock(u32 clk, int set_iga) +{ + struct via_pll_config config = get_best_pll_config(clk); + + if (set_iga == IGA1) + clock.set_primary_pll(config); + if (set_iga == IGA2) + clock.set_secondary_pll(config); + + /* Fire! */ + via_write_misc_reg_mask(0x0C, 0x0C); /* select external clock */ +} + +struct via_display_timing var_to_timing(const struct fb_var_screeninfo *var, + u16 cxres, u16 cyres) +{ + struct via_display_timing timing; + u16 dx = (var->xres - cxres) / 2, dy = (var->yres - cyres) / 2; + + timing.hor_addr = cxres; + timing.hor_sync_start = timing.hor_addr + var->right_margin + dx; + timing.hor_sync_end = timing.hor_sync_start + var->hsync_len; + timing.hor_total = timing.hor_sync_end + var->left_margin + dx; + timing.hor_blank_start = timing.hor_addr + dx; + timing.hor_blank_end = timing.hor_total - dx; + timing.ver_addr = cyres; + timing.ver_sync_start = timing.ver_addr + var->lower_margin + dy; + timing.ver_sync_end = timing.ver_sync_start + var->vsync_len; + timing.ver_total = timing.ver_sync_end + var->upper_margin + dy; + timing.ver_blank_start = timing.ver_addr + dy; + timing.ver_blank_end = timing.ver_total - dy; + return timing; +} + +void viafb_fill_crtc_timing(const struct fb_var_screeninfo *var, + u16 cxres, u16 cyres, int iga) +{ + struct via_display_timing crt_reg = var_to_timing(var, + cxres ? cxres : var->xres, cyres ? cyres : var->yres); + + if (iga == IGA1) + via_set_primary_timing(&crt_reg); + else if (iga == IGA2) + via_set_secondary_timing(&crt_reg); + + viafb_load_fetch_count_reg(var->xres, var->bits_per_pixel / 8, iga); + if (viaparinfo->chip_info->gfx_chip_name != UNICHROME_CLE266 + && viaparinfo->chip_info->gfx_chip_name != UNICHROME_K400) + viafb_load_FIFO_reg(iga, var->xres, var->yres); + + viafb_set_vclock(PICOS2KHZ(var->pixclock) * 1000, iga); +} + +void viafb_init_chip_info(int chip_type) +{ + via_clock_init(&clock, chip_type); + init_gfx_chip_info(chip_type); + init_tmds_chip_info(); + init_lvds_chip_info(); + + /*Set IGA path for each device */ + viafb_set_iga_path(); + + viaparinfo->lvds_setting_info->display_method = viafb_lcd_dsp_method; + viaparinfo->lvds_setting_info->lcd_mode = viafb_lcd_mode; + viaparinfo->lvds_setting_info2->display_method = + viaparinfo->lvds_setting_info->display_method; + viaparinfo->lvds_setting_info2->lcd_mode = + viaparinfo->lvds_setting_info->lcd_mode; +} + +void viafb_update_device_setting(int hres, int vres, int bpp, int flag) +{ + if (flag == 0) { + viaparinfo->tmds_setting_info->h_active = hres; + viaparinfo->tmds_setting_info->v_active = vres; + } else { + + if (viaparinfo->tmds_setting_info->iga_path == IGA2) { + viaparinfo->tmds_setting_info->h_active = hres; + viaparinfo->tmds_setting_info->v_active = vres; + } + + } +} + +static void init_gfx_chip_info(int chip_type) +{ + u8 tmp; + + viaparinfo->chip_info->gfx_chip_name = chip_type; + + /* Check revision of CLE266 Chip */ + if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266) { + /* CR4F only define in CLE266.CX chip */ + tmp = viafb_read_reg(VIACR, CR4F); + viafb_write_reg(CR4F, VIACR, 0x55); + if (viafb_read_reg(VIACR, CR4F) != 0x55) + viaparinfo->chip_info->gfx_chip_revision = + CLE266_REVISION_AX; + else + viaparinfo->chip_info->gfx_chip_revision = + CLE266_REVISION_CX; + /* restore orignal CR4F value */ + viafb_write_reg(CR4F, VIACR, tmp); + } + + if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CX700) { + tmp = viafb_read_reg(VIASR, SR43); + DEBUG_MSG(KERN_INFO "SR43:%X\n", tmp); + if (tmp & 0x02) { + viaparinfo->chip_info->gfx_chip_revision = + CX700_REVISION_700M2; + } else if (tmp & 0x40) { + viaparinfo->chip_info->gfx_chip_revision = + CX700_REVISION_700M; + } else { + viaparinfo->chip_info->gfx_chip_revision = + CX700_REVISION_700; + } + } + + /* Determine which 2D engine we have */ + switch (viaparinfo->chip_info->gfx_chip_name) { + case UNICHROME_VX800: + case UNICHROME_VX855: + case UNICHROME_VX900: + viaparinfo->chip_info->twod_engine = VIA_2D_ENG_M1; + break; + case UNICHROME_K8M890: + case UNICHROME_P4M900: + viaparinfo->chip_info->twod_engine = VIA_2D_ENG_H5; + break; + default: + viaparinfo->chip_info->twod_engine = VIA_2D_ENG_H2; + break; + } +} + +static void init_tmds_chip_info(void) +{ + viafb_tmds_trasmitter_identify(); + + if (INTERFACE_NONE == viaparinfo->chip_info->tmds_chip_info. + output_interface) { + switch (viaparinfo->chip_info->gfx_chip_name) { + case UNICHROME_CX700: + { + /* we should check support by hardware layout.*/ + if ((viafb_display_hardware_layout == + HW_LAYOUT_DVI_ONLY) + || (viafb_display_hardware_layout == + HW_LAYOUT_LCD_DVI)) { + viaparinfo->chip_info->tmds_chip_info. + output_interface = INTERFACE_TMDS; + } else { + viaparinfo->chip_info->tmds_chip_info. + output_interface = + INTERFACE_NONE; + } + break; + } + case UNICHROME_K8M890: + case UNICHROME_P4M900: + case UNICHROME_P4M890: + /* TMDS on PCIE, we set DFPLOW as default. */ + viaparinfo->chip_info->tmds_chip_info.output_interface = + INTERFACE_DFP_LOW; + break; + default: + { + /* set DVP1 default for DVI */ + viaparinfo->chip_info->tmds_chip_info + .output_interface = INTERFACE_DVP1; + } + } + } + + DEBUG_MSG(KERN_INFO "TMDS Chip = %d\n", + viaparinfo->chip_info->tmds_chip_info.tmds_chip_name); + viafb_init_dvi_size(&viaparinfo->shared->chip_info.tmds_chip_info, + &viaparinfo->shared->tmds_setting_info); +} + +static void init_lvds_chip_info(void) +{ + viafb_lvds_trasmitter_identify(); + viafb_init_lcd_size(); + viafb_init_lvds_output_interface(&viaparinfo->chip_info->lvds_chip_info, + viaparinfo->lvds_setting_info); + if (viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) { + viafb_init_lvds_output_interface(&viaparinfo->chip_info-> + lvds_chip_info2, viaparinfo->lvds_setting_info2); + } + /*If CX700,two singel LCD, we need to reassign + LCD interface to different LVDS port */ + if ((UNICHROME_CX700 == viaparinfo->chip_info->gfx_chip_name) + && (HW_LAYOUT_LCD1_LCD2 == viafb_display_hardware_layout)) { + if ((INTEGRATED_LVDS == viaparinfo->chip_info->lvds_chip_info. + lvds_chip_name) && (INTEGRATED_LVDS == + viaparinfo->chip_info-> + lvds_chip_info2.lvds_chip_name)) { + viaparinfo->chip_info->lvds_chip_info.output_interface = + INTERFACE_LVDS0; + viaparinfo->chip_info->lvds_chip_info2. + output_interface = + INTERFACE_LVDS1; + } + } + + DEBUG_MSG(KERN_INFO "LVDS Chip = %d\n", + viaparinfo->chip_info->lvds_chip_info.lvds_chip_name); + DEBUG_MSG(KERN_INFO "LVDS1 output_interface = %d\n", + viaparinfo->chip_info->lvds_chip_info.output_interface); + DEBUG_MSG(KERN_INFO "LVDS2 output_interface = %d\n", + viaparinfo->chip_info->lvds_chip_info.output_interface); +} + +void viafb_init_dac(int set_iga) +{ + int i; + u8 tmp; + + if (set_iga == IGA1) { + /* access Primary Display's LUT */ + viafb_write_reg_mask(SR1A, VIASR, 0x00, BIT0); + /* turn off LCK */ + viafb_write_reg_mask(SR1B, VIASR, 0x00, BIT7 + BIT6); + for (i = 0; i < 256; i++) { + write_dac_reg(i, palLUT_table[i].red, + palLUT_table[i].green, + palLUT_table[i].blue); + } + /* turn on LCK */ + viafb_write_reg_mask(SR1B, VIASR, 0xC0, BIT7 + BIT6); + } else { + tmp = viafb_read_reg(VIACR, CR6A); + /* access Secondary Display's LUT */ + viafb_write_reg_mask(CR6A, VIACR, 0x40, BIT6); + viafb_write_reg_mask(SR1A, VIASR, 0x01, BIT0); + for (i = 0; i < 256; i++) { + write_dac_reg(i, palLUT_table[i].red, + palLUT_table[i].green, + palLUT_table[i].blue); + } + /* set IGA1 DAC for default */ + viafb_write_reg_mask(SR1A, VIASR, 0x00, BIT0); + viafb_write_reg(CR6A, VIACR, tmp); + } +} + +static void device_screen_off(void) +{ + /* turn off CRT screen (IGA1) */ + viafb_write_reg_mask(SR01, VIASR, 0x20, BIT5); +} + +static void device_screen_on(void) +{ + /* turn on CRT screen (IGA1) */ + viafb_write_reg_mask(SR01, VIASR, 0x00, BIT5); +} + +static void set_display_channel(void) +{ + /*If viafb_LCD2_ON, on cx700, internal lvds's information + is keeped on lvds_setting_info2 */ + if (viafb_LCD2_ON && + viaparinfo->lvds_setting_info2->device_lcd_dualedge) { + /* For dual channel LCD: */ + /* Set to Dual LVDS channel. */ + viafb_write_reg_mask(CRD2, VIACR, 0x20, BIT4 + BIT5); + } else if (viafb_LCD_ON && viafb_DVI_ON) { + /* For LCD+DFP: */ + /* Set to LVDS1 + TMDS channel. */ + viafb_write_reg_mask(CRD2, VIACR, 0x10, BIT4 + BIT5); + } else if (viafb_DVI_ON) { + /* Set to single TMDS channel. */ + viafb_write_reg_mask(CRD2, VIACR, 0x30, BIT4 + BIT5); + } else if (viafb_LCD_ON) { + if (viaparinfo->lvds_setting_info->device_lcd_dualedge) { + /* For dual channel LCD: */ + /* Set to Dual LVDS channel. */ + viafb_write_reg_mask(CRD2, VIACR, 0x20, BIT4 + BIT5); + } else { + /* Set to LVDS0 + LVDS1 channel. */ + viafb_write_reg_mask(CRD2, VIACR, 0x00, BIT4 + BIT5); + } + } +} + +static u8 get_sync(struct fb_var_screeninfo *var) +{ + u8 polarity = 0; + + if (!(var->sync & FB_SYNC_HOR_HIGH_ACT)) + polarity |= VIA_HSYNC_NEGATIVE; + if (!(var->sync & FB_SYNC_VERT_HIGH_ACT)) + polarity |= VIA_VSYNC_NEGATIVE; + return polarity; +} + +static void hw_init(void) +{ + int i; + + inb(VIAStatus); + outb(0x00, VIAAR); + + /* Write Common Setting for Video Mode */ + viafb_write_regx(common_vga, ARRAY_SIZE(common_vga)); + switch (viaparinfo->chip_info->gfx_chip_name) { + case UNICHROME_CLE266: + viafb_write_regx(CLE266_ModeXregs, NUM_TOTAL_CLE266_ModeXregs); + break; + + case UNICHROME_K400: + viafb_write_regx(KM400_ModeXregs, NUM_TOTAL_KM400_ModeXregs); + break; + + case UNICHROME_K800: + case UNICHROME_PM800: + viafb_write_regx(CN400_ModeXregs, NUM_TOTAL_CN400_ModeXregs); + break; + + case UNICHROME_CN700: + case UNICHROME_K8M890: + case UNICHROME_P4M890: + case UNICHROME_P4M900: + viafb_write_regx(CN700_ModeXregs, NUM_TOTAL_CN700_ModeXregs); + break; + + case UNICHROME_CX700: + case UNICHROME_VX800: + viafb_write_regx(CX700_ModeXregs, NUM_TOTAL_CX700_ModeXregs); + break; + + case UNICHROME_VX855: + case UNICHROME_VX900: + viafb_write_regx(VX855_ModeXregs, NUM_TOTAL_VX855_ModeXregs); + break; + } + + /* magic required on VX900 for correct modesetting on IGA1 */ + via_write_reg_mask(VIACR, 0x45, 0x00, 0x01); + + /* probably this should go to the scaling code one day */ + via_write_reg_mask(VIACR, 0xFD, 0, 0x80); /* VX900 hw scale on IGA2 */ + viafb_write_regx(scaling_parameters, ARRAY_SIZE(scaling_parameters)); + + /* Fill VPIT Parameters */ + /* Write Misc Register */ + outb(VPIT.Misc, VIA_MISC_REG_WRITE); + + /* Write Sequencer */ + for (i = 1; i <= StdSR; i++) + via_write_reg(VIASR, i, VPIT.SR[i - 1]); + + viafb_write_reg_mask(0x15, VIASR, 0xA2, 0xA2); + + /* Write Graphic Controller */ + for (i = 0; i < StdGR; i++) + via_write_reg(VIAGR, i, VPIT.GR[i]); + + /* Write Attribute Controller */ + for (i = 0; i < StdAR; i++) { + inb(VIAStatus); + outb(i, VIAAR); + outb(VPIT.AR[i], VIAAR); + } + + inb(VIAStatus); + outb(0x20, VIAAR); + + load_fix_bit_crtc_reg(); +} + +int viafb_setmode(void) +{ + int j, cxres = 0, cyres = 0; + int port; + u32 devices = viaparinfo->shared->iga1_devices + | viaparinfo->shared->iga2_devices; + u8 value, index, mask; + struct fb_var_screeninfo var2; + + device_screen_off(); + device_off(); + via_set_state(devices, VIA_STATE_OFF); + + hw_init(); + + /* Update Patch Register */ + + if ((viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266 + || viaparinfo->chip_info->gfx_chip_name == UNICHROME_K400) + && viafbinfo->var.xres == 1024 && viafbinfo->var.yres == 768) { + for (j = 0; j < res_patch_table[0].table_length; j++) { + index = res_patch_table[0].io_reg_table[j].index; + port = res_patch_table[0].io_reg_table[j].port; + value = res_patch_table[0].io_reg_table[j].value; + mask = res_patch_table[0].io_reg_table[j].mask; + viafb_write_reg_mask(index, port, value, mask); + } + } + + via_set_primary_pitch(viafbinfo->fix.line_length); + via_set_secondary_pitch(viafb_dual_fb ? viafbinfo1->fix.line_length + : viafbinfo->fix.line_length); + via_set_primary_color_depth(viaparinfo->depth); + via_set_secondary_color_depth(viafb_dual_fb ? viaparinfo1->depth + : viaparinfo->depth); + via_set_source(viaparinfo->shared->iga1_devices, IGA1); + via_set_source(viaparinfo->shared->iga2_devices, IGA2); + if (viaparinfo->shared->iga2_devices) + enable_second_display_channel(); + else + disable_second_display_channel(); + + /* Update Refresh Rate Setting */ + + /* Clear On Screen */ + + if (viafb_dual_fb) { + var2 = viafbinfo1->var; + } else if (viafb_SAMM_ON) { + viafb_fill_var_timing_info(&var2, viafb_get_best_mode( + viafb_second_xres, viafb_second_yres, viafb_refresh1)); + cxres = viafbinfo->var.xres; + cyres = viafbinfo->var.yres; + var2.bits_per_pixel = viafbinfo->var.bits_per_pixel; + } + + /* CRT set mode */ + if (viafb_CRT_ON) { + if (viaparinfo->shared->iga2_devices & VIA_CRT + && viafb_SAMM_ON) + viafb_fill_crtc_timing(&var2, cxres, cyres, IGA2); + else + viafb_fill_crtc_timing(&viafbinfo->var, 0, 0, + (viaparinfo->shared->iga1_devices & VIA_CRT) + ? IGA1 : IGA2); + + /* Patch if set_hres is not 8 alignment (1366) to viafb_setmode + to 8 alignment (1368),there is several pixels (2 pixels) + on right side of screen. */ + if (viafbinfo->var.xres % 8) { + viafb_unlock_crt(); + viafb_write_reg(CR02, VIACR, + viafb_read_reg(VIACR, CR02) - 1); + viafb_lock_crt(); + } + } + + if (viafb_DVI_ON) { + if (viaparinfo->shared->tmds_setting_info.iga_path == IGA2 + && viafb_SAMM_ON) + viafb_dvi_set_mode(&var2, cxres, cyres, IGA2); + else + viafb_dvi_set_mode(&viafbinfo->var, 0, 0, + viaparinfo->tmds_setting_info->iga_path); + } + + if (viafb_LCD_ON) { + if (viafb_SAMM_ON && + (viaparinfo->lvds_setting_info->iga_path == IGA2)) { + viafb_lcd_set_mode(&var2, cxres, cyres, + viaparinfo->lvds_setting_info, + &viaparinfo->chip_info->lvds_chip_info); + } else { + /* IGA1 doesn't have LCD scaling, so set it center. */ + if (viaparinfo->lvds_setting_info->iga_path == IGA1) { + viaparinfo->lvds_setting_info->display_method = + LCD_CENTERING; + } + viafb_lcd_set_mode(&viafbinfo->var, 0, 0, + viaparinfo->lvds_setting_info, + &viaparinfo->chip_info->lvds_chip_info); + } + } + if (viafb_LCD2_ON) { + if (viafb_SAMM_ON && + (viaparinfo->lvds_setting_info2->iga_path == IGA2)) { + viafb_lcd_set_mode(&var2, cxres, cyres, + viaparinfo->lvds_setting_info2, + &viaparinfo->chip_info->lvds_chip_info2); + } else { + /* IGA1 doesn't have LCD scaling, so set it center. */ + if (viaparinfo->lvds_setting_info2->iga_path == IGA1) { + viaparinfo->lvds_setting_info2->display_method = + LCD_CENTERING; + } + viafb_lcd_set_mode(&viafbinfo->var, 0, 0, + viaparinfo->lvds_setting_info2, + &viaparinfo->chip_info->lvds_chip_info2); + } + } + + if ((viaparinfo->chip_info->gfx_chip_name == UNICHROME_CX700) + && (viafb_LCD_ON || viafb_DVI_ON)) + set_display_channel(); + + /* If set mode normally, save resolution information for hot-plug . */ + if (!viafb_hotplug) { + viafb_hotplug_Xres = viafbinfo->var.xres; + viafb_hotplug_Yres = viafbinfo->var.yres; + viafb_hotplug_bpp = viafbinfo->var.bits_per_pixel; + viafb_hotplug_refresh = viafb_refresh; + + if (viafb_DVI_ON) + viafb_DeviceStatus = DVI_Device; + else + viafb_DeviceStatus = CRT_Device; + } + device_on(); + if (!viafb_SAMM_ON) + via_set_sync_polarity(devices, get_sync(&viafbinfo->var)); + else { + via_set_sync_polarity(viaparinfo->shared->iga1_devices, + get_sync(&viafbinfo->var)); + via_set_sync_polarity(viaparinfo->shared->iga2_devices, + get_sync(&var2)); + } + + clock.set_engine_pll_state(VIA_STATE_ON); + clock.set_primary_clock_source(VIA_CLKSRC_X1, true); + clock.set_secondary_clock_source(VIA_CLKSRC_X1, true); + +#ifdef CONFIG_FB_VIA_X_COMPATIBILITY + clock.set_primary_pll_state(VIA_STATE_ON); + clock.set_primary_clock_state(VIA_STATE_ON); + clock.set_secondary_pll_state(VIA_STATE_ON); + clock.set_secondary_clock_state(VIA_STATE_ON); +#else + if (viaparinfo->shared->iga1_devices) { + clock.set_primary_pll_state(VIA_STATE_ON); + clock.set_primary_clock_state(VIA_STATE_ON); + } else { + clock.set_primary_pll_state(VIA_STATE_OFF); + clock.set_primary_clock_state(VIA_STATE_OFF); + } + + if (viaparinfo->shared->iga2_devices) { + clock.set_secondary_pll_state(VIA_STATE_ON); + clock.set_secondary_clock_state(VIA_STATE_ON); + } else { + clock.set_secondary_pll_state(VIA_STATE_OFF); + clock.set_secondary_clock_state(VIA_STATE_OFF); + } +#endif /*CONFIG_FB_VIA_X_COMPATIBILITY*/ + + via_set_state(devices, VIA_STATE_ON); + device_screen_on(); + return 1; +} + +int viafb_get_refresh(int hres, int vres, u32 long_refresh) +{ + const struct fb_videomode *best; + + best = viafb_get_best_mode(hres, vres, long_refresh); + if (!best) + return 60; + + if (abs(best->refresh - long_refresh) > 3) { + if (hres == 1200 && vres == 900) + return 49; /* OLPC DCON only supports 50 Hz */ + else + return 60; + } + + return best->refresh; +} + +static void device_off(void) +{ + viafb_dvi_disable(); + viafb_lcd_disable(); +} + +static void device_on(void) +{ + if (viafb_DVI_ON == 1) + viafb_dvi_enable(); + if (viafb_LCD_ON == 1) + viafb_lcd_enable(); +} + +static void enable_second_display_channel(void) +{ + /* to enable second display channel. */ + viafb_write_reg_mask(CR6A, VIACR, 0x00, BIT6); + viafb_write_reg_mask(CR6A, VIACR, BIT7, BIT7); + viafb_write_reg_mask(CR6A, VIACR, BIT6, BIT6); +} + +static void disable_second_display_channel(void) +{ + /* to disable second display channel. */ + viafb_write_reg_mask(CR6A, VIACR, 0x00, BIT6); + viafb_write_reg_mask(CR6A, VIACR, 0x00, BIT7); + viafb_write_reg_mask(CR6A, VIACR, BIT6, BIT6); +} + +void viafb_set_dpa_gfx(int output_interface, struct GFX_DPA_SETTING\ + *p_gfx_dpa_setting) +{ + switch (output_interface) { + case INTERFACE_DVP0: + { + /* DVP0 Clock Polarity and Adjust: */ + viafb_write_reg_mask(CR96, VIACR, + p_gfx_dpa_setting->DVP0, 0x0F); + + /* DVP0 Clock and Data Pads Driving: */ + viafb_write_reg_mask(SR1E, VIASR, + p_gfx_dpa_setting->DVP0ClockDri_S, BIT2); + viafb_write_reg_mask(SR2A, VIASR, + p_gfx_dpa_setting->DVP0ClockDri_S1, + BIT4); + viafb_write_reg_mask(SR1B, VIASR, + p_gfx_dpa_setting->DVP0DataDri_S, BIT1); + viafb_write_reg_mask(SR2A, VIASR, + p_gfx_dpa_setting->DVP0DataDri_S1, BIT5); + break; + } + + case INTERFACE_DVP1: + { + /* DVP1 Clock Polarity and Adjust: */ + viafb_write_reg_mask(CR9B, VIACR, + p_gfx_dpa_setting->DVP1, 0x0F); + + /* DVP1 Clock and Data Pads Driving: */ + viafb_write_reg_mask(SR65, VIASR, + p_gfx_dpa_setting->DVP1Driving, 0x0F); + break; + } + + case INTERFACE_DFP_HIGH: + { + viafb_write_reg_mask(CR97, VIACR, + p_gfx_dpa_setting->DFPHigh, 0x0F); + break; + } + + case INTERFACE_DFP_LOW: + { + viafb_write_reg_mask(CR99, VIACR, + p_gfx_dpa_setting->DFPLow, 0x0F); + break; + } + + case INTERFACE_DFP: + { + viafb_write_reg_mask(CR97, VIACR, + p_gfx_dpa_setting->DFPHigh, 0x0F); + viafb_write_reg_mask(CR99, VIACR, + p_gfx_dpa_setting->DFPLow, 0x0F); + break; + } + } +} + +void viafb_fill_var_timing_info(struct fb_var_screeninfo *var, + const struct fb_videomode *mode) +{ + var->pixclock = mode->pixclock; + var->xres = mode->xres; + var->yres = mode->yres; + var->left_margin = mode->left_margin; + var->right_margin = mode->right_margin; + var->hsync_len = mode->hsync_len; + var->upper_margin = mode->upper_margin; + var->lower_margin = mode->lower_margin; + var->vsync_len = mode->vsync_len; + var->sync = mode->sync; +} |