via-core.h revision 751305d9b2fd3e03eaab7808e976241d85ca4353
1f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet/* 2f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet * Copyright 1998-2009 VIA Technologies, Inc. All Rights Reserved. 3f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved. 464a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbet * Copyright 2009-2010 Jonathan Corbet <corbet@lwn.net> 564a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbet * Copyright 2010 Florian Tobias Schandinat <FlorianSchandinat@gmx.de> 6f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet * 7f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet * This program is free software; you can redistribute it and/or 8f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet * modify it under the terms of the GNU General Public 9f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet * License as published by the Free Software Foundation; 10f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet * either version 2, or (at your option) any later version. 11f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet * 12f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet * This program is distributed in the hope that it will be useful, 13f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet * but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; without even 14f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet * the implied warranty of MERCHANTABILITY or FITNESS FOR 15f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet * A PARTICULAR PURPOSE.See the GNU General Public License 16f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet * for more details. 17f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet * 18f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet * You should have received a copy of the GNU General Public License 19f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet * along with this program; if not, write to the Free Software 20f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet * Foundation, Inc., 21f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 22f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet */ 23f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet 24f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet#ifndef __VIA_CORE_H__ 25f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet#define __VIA_CORE_H__ 2664a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbet#include <linux/types.h> 2764a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbet#include <linux/io.h> 2824b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet#include <linux/spinlock.h> 2924b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet#include <linux/pci.h> 3024b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet 31f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet/* 32f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet * A description of each known serial I2C/GPIO port. 33f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet */ 34f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbetenum via_port_type { 35f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet VIA_PORT_NONE = 0, 36f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet VIA_PORT_I2C, 37f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet VIA_PORT_GPIO, 38f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet}; 39f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet 40f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbetenum via_port_mode { 41f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet VIA_MODE_OFF = 0, 42f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet VIA_MODE_I2C, /* Used as I2C port */ 43f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet VIA_MODE_GPIO, /* Two GPIO ports */ 44f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet}; 45f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet 46f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbetenum viafb_i2c_adap { 47f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet VIA_PORT_26 = 0, 48f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet VIA_PORT_31, 49f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet VIA_PORT_25, 50f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet VIA_PORT_2C, 51f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet VIA_PORT_3D, 52f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet}; 53f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet#define VIAFB_NUM_PORTS 5 54f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet 55f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbetstruct via_port_cfg { 56f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet enum via_port_type type; 57f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet enum via_port_mode mode; 5824b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet u16 io_port; 5924b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet u8 ioport_index; 60f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet}; 6124b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet 6224b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet/* 63751305d9b2fd3e03eaab7808e976241d85ca4353Daniel Drake * Allow subdevs to register suspend/resume hooks. 64751305d9b2fd3e03eaab7808e976241d85ca4353Daniel Drake */ 65751305d9b2fd3e03eaab7808e976241d85ca4353Daniel Drake#ifdef CONFIG_PM 66751305d9b2fd3e03eaab7808e976241d85ca4353Daniel Drakestruct viafb_pm_hooks { 67751305d9b2fd3e03eaab7808e976241d85ca4353Daniel Drake struct list_head list; 68751305d9b2fd3e03eaab7808e976241d85ca4353Daniel Drake int (*suspend)(void *private); 69751305d9b2fd3e03eaab7808e976241d85ca4353Daniel Drake int (*resume)(void *private); 70751305d9b2fd3e03eaab7808e976241d85ca4353Daniel Drake void *private; 71751305d9b2fd3e03eaab7808e976241d85ca4353Daniel Drake}; 72751305d9b2fd3e03eaab7808e976241d85ca4353Daniel Drake 73751305d9b2fd3e03eaab7808e976241d85ca4353Daniel Drakevoid viafb_pm_register(struct viafb_pm_hooks *hooks); 74751305d9b2fd3e03eaab7808e976241d85ca4353Daniel Drakevoid viafb_pm_unregister(struct viafb_pm_hooks *hooks); 75751305d9b2fd3e03eaab7808e976241d85ca4353Daniel Drake#endif /* CONFIG_PM */ 76751305d9b2fd3e03eaab7808e976241d85ca4353Daniel Drake 77751305d9b2fd3e03eaab7808e976241d85ca4353Daniel Drake/* 7824b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet * This is the global viafb "device" containing stuff needed by 7924b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet * all subdevs. 8024b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet */ 8124b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbetstruct viafb_dev { 8224b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet struct pci_dev *pdev; 8324b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet int chip_type; 847582eb9be85f35271fd2569681a88a5b243e9380Jonathan Corbet struct via_port_cfg *port_cfg; 8524b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet /* 8624b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet * Spinlock for access to device registers. Not yet 8724b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet * globally used. 8824b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet */ 8924b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet spinlock_t reg_lock; 9024b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet /* 9124b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet * The framebuffer MMIO region. Little, if anything, touches 9224b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet * this memory directly, and certainly nothing outside of the 9324b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet * framebuffer device itself. We *do* have to be able to allocate 9424b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet * chunks of this memory for other devices, though. 9524b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet */ 9624b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet unsigned long fbmem_start; 9724b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet long fbmem_len; 9824b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet void __iomem *fbmem; 99c2b12cd496bbe5eff6a48bc669fe6b0c56f2b3d9Jonathan Corbet#if defined(CONFIG_FB_VIA_CAMERA) || defined(CONFIG_FB_VIA_CAMERA_MODULE) 100c2b12cd496bbe5eff6a48bc669fe6b0c56f2b3d9Jonathan Corbet long camera_fbmem_offset; 101c2b12cd496bbe5eff6a48bc669fe6b0c56f2b3d9Jonathan Corbet long camera_fbmem_size; 102c2b12cd496bbe5eff6a48bc669fe6b0c56f2b3d9Jonathan Corbet#endif 10324b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet /* 10424b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet * The MMIO region for device registers. 10524b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet */ 10624b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet unsigned long engine_start; 10724b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet unsigned long engine_len; 10824b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet void __iomem *engine_mmio; 10924b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet 11024b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet}; 11124b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet 11294dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet/* 11394dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet * Interrupt management. 11494dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet */ 11594dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet 11694dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbetvoid viafb_irq_enable(u32 mask); 11794dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbetvoid viafb_irq_disable(u32 mask); 11894dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet 11994dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet/* 12094dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet * The global interrupt control register and its bits. 12194dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet */ 12294dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_INTERRUPT 0x200 /* Video interrupt flags/masks */ 12394dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_DVISENSE 0x00000001 /* DVI sense int status */ 12494dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_VBLANK 0x00000002 /* Vertical blank status */ 12594dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_MCCFI 0x00000004 /* MCE compl. frame int status */ 12694dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_VSYNC 0x00000008 /* VGA VSYNC int status */ 12794dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_DMA0DDONE 0x00000010 /* DMA 0 descr done */ 12894dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_DMA0TDONE 0x00000020 /* DMA 0 transfer done */ 12994dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_DMA1DDONE 0x00000040 /* DMA 1 descr done */ 13094dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_DMA1TDONE 0x00000080 /* DMA 1 transfer done */ 13194dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_C1AV 0x00000100 /* Cap Eng 1 act vid end */ 13294dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_HQV0 0x00000200 /* First HQV engine */ 13394dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_HQV1 0x00000400 /* Second HQV engine */ 13494dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_HQV1EN 0x00000800 /* Second HQV engine enable */ 13594dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_C0AV 0x00001000 /* Cap Eng 0 act vid end */ 13694dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_C0VBI 0x00002000 /* Cap Eng 0 VBI end */ 13794dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_C1VBI 0x00004000 /* Cap Eng 1 VBI end */ 13894dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_VSYNC2 0x00008000 /* Sec. Disp. VSYNC */ 13994dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_DVISNSEN 0x00010000 /* DVI sense enable */ 14094dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_VSYNC2EN 0x00020000 /* Sec Disp VSYNC enable */ 14194dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_MCCFIEN 0x00040000 /* MC comp frame int mask enable */ 14294dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_VSYNCEN 0x00080000 /* VSYNC enable */ 14394dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_DMA0DDEN 0x00100000 /* DMA 0 descr done enable */ 14494dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_DMA0TDEN 0x00200000 /* DMA 0 trans done enable */ 14594dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_DMA1DDEN 0x00400000 /* DMA 1 descr done enable */ 14694dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_DMA1TDEN 0x00800000 /* DMA 1 trans done enable */ 14794dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_C1AVEN 0x01000000 /* cap 1 act vid end enable */ 14894dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_HQV0EN 0x02000000 /* First hqv engine enable */ 14994dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_C1VBIEN 0x04000000 /* Cap 1 VBI end enable */ 15094dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_LVDSSI 0x08000000 /* LVDS sense interrupt */ 15194dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_C0AVEN 0x10000000 /* Cap 0 act vid end enable */ 15294dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_C0VBIEN 0x20000000 /* Cap 0 VBI end enable */ 15394dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_LVDSSIEN 0x40000000 /* LVDS Sense enable */ 15494dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_ENABLE 0x80000000 /* Global interrupt enable */ 15594dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet 1563d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet/* 1573d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet * DMA management. 1583d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet */ 1593d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbetint viafb_request_dma(void); 1603d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbetvoid viafb_release_dma(void); 1613d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet/* void viafb_dma_copy_out(unsigned int offset, dma_addr_t paddr, int len); */ 1623d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbetint viafb_dma_copy_out_sg(unsigned int offset, struct scatterlist *sg, int nsg); 1633d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet 1643d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet/* 1653d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet * DMA Controller registers. 1663d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet */ 1673d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet#define VDMA_MR0 0xe00 /* Mod reg 0 */ 1683d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet#define VDMA_MR_CHAIN 0x01 /* Chaining mode */ 1693d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet#define VDMA_MR_TDIE 0x02 /* Transfer done int enable */ 1703d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet#define VDMA_CSR0 0xe04 /* Control/status */ 1713d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet#define VDMA_C_ENABLE 0x01 /* DMA Enable */ 1723d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet#define VDMA_C_START 0x02 /* Start a transfer */ 1733d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet#define VDMA_C_ABORT 0x04 /* Abort a transfer */ 1743d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet#define VDMA_C_DONE 0x08 /* Transfer is done */ 1753d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet#define VDMA_MARL0 0xe20 /* Mem addr low */ 1763d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet#define VDMA_MARH0 0xe24 /* Mem addr high */ 1773d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet#define VDMA_DAR0 0xe28 /* Device address */ 1783d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet#define VDMA_DQWCR0 0xe2c /* Count (16-byte) */ 1793d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet#define VDMA_TMR0 0xe30 /* Tile mode reg */ 1803d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet#define VDMA_DPRL0 0xe34 /* Not sure */ 1813d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet#define VDMA_DPR_IN 0x08 /* Inbound transfer to FB */ 1823d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet#define VDMA_DPRH0 0xe38 1833d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet#define VDMA_PMR0 (0xe00 + 0x134) /* Pitch mode */ 1843d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet 185c2b12cd496bbe5eff6a48bc669fe6b0c56f2b3d9Jonathan Corbet/* 186c2b12cd496bbe5eff6a48bc669fe6b0c56f2b3d9Jonathan Corbet * Useful stuff that probably belongs somewhere global. 187c2b12cd496bbe5eff6a48bc669fe6b0c56f2b3d9Jonathan Corbet */ 188c2b12cd496bbe5eff6a48bc669fe6b0c56f2b3d9Jonathan Corbet#define VGA_WIDTH 640 189c2b12cd496bbe5eff6a48bc669fe6b0c56f2b3d9Jonathan Corbet#define VGA_HEIGHT 480 190c2b12cd496bbe5eff6a48bc669fe6b0c56f2b3d9Jonathan Corbet 19164a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbet/* 19264a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbet * Indexed port operations. Note that these are all multi-op 19364a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbet * functions; every invocation will be racy if you're not holding 19464a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbet * reg_lock. 19564a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbet */ 19664a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbet 19764a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbet#define VIAStatus 0x3DA /* Non-indexed port */ 19864a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbet#define VIACR 0x3D4 19964a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbet#define VIASR 0x3C4 20064a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbet#define VIAGR 0x3CE 20164a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbet#define VIAAR 0x3C0 20264a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbet 20364a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbetstatic inline u8 via_read_reg(u16 port, u8 index) 20464a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbet{ 20564a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbet outb(index, port); 20664a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbet return inb(port + 1); 20764a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbet} 20864a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbet 20964a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbetstatic inline void via_write_reg(u16 port, u8 index, u8 data) 21064a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbet{ 21164a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbet outb(index, port); 21264a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbet outb(data, port + 1); 21364a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbet} 21464a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbet 21564a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbetstatic inline void via_write_reg_mask(u16 port, u8 index, u8 data, u8 mask) 21664a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbet{ 21764a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbet u8 old; 21864a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbet 21964a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbet outb(index, port); 22064a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbet old = inb(port + 1); 22164a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbet outb((data & mask) | (old & ~mask), port + 1); 22264a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbet} 22364a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbet 22464a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbet#define VIA_MISC_REG_READ 0x03CC 22564a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbet#define VIA_MISC_REG_WRITE 0x03C2 22664a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbet 22764a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbetstatic inline void via_write_misc_reg_mask(u8 data, u8 mask) 22864a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbet{ 22964a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbet u8 old = inb(VIA_MISC_REG_READ); 23064a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbet outb((data & mask) | (old & ~mask), VIA_MISC_REG_WRITE); 23164a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbet} 23264a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbet 23364a6bd6a570c53f1955eaedf3952dcbe9b62da1dJonathan Corbet 234f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet#endif /* __VIA_CORE_H__ */ 235