via-core.h revision 3d28eb42c52a799c806082e6d856f634ed1db902
1f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet/* 2f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet * Copyright 1998-2009 VIA Technologies, Inc. All Rights Reserved. 3f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved. 4f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet * Copyright 2009 Jonathan Corbet <corbet@lwn.net> 5f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet * 6f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet * This program is free software; you can redistribute it and/or 7f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet * modify it under the terms of the GNU General Public 8f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet * License as published by the Free Software Foundation; 9f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet * either version 2, or (at your option) any later version. 10f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet * 11f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet * This program is distributed in the hope that it will be useful, 12f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet * but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; without even 13f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet * the implied warranty of MERCHANTABILITY or FITNESS FOR 14f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet * A PARTICULAR PURPOSE.See the GNU General Public License 15f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet * for more details. 16f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet * 17f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet * You should have received a copy of the GNU General Public License 18f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet * along with this program; if not, write to the Free Software 19f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet * Foundation, Inc., 20f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 21f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet */ 22f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet 23f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet#ifndef __VIA_CORE_H__ 24f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet#define __VIA_CORE_H__ 2524b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet#include <linux/spinlock.h> 2624b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet#include <linux/pci.h> 2724b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet 28f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet/* 29f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet * A description of each known serial I2C/GPIO port. 30f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet */ 31f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbetenum via_port_type { 32f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet VIA_PORT_NONE = 0, 33f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet VIA_PORT_I2C, 34f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet VIA_PORT_GPIO, 35f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet}; 36f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet 37f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbetenum via_port_mode { 38f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet VIA_MODE_OFF = 0, 39f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet VIA_MODE_I2C, /* Used as I2C port */ 40f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet VIA_MODE_GPIO, /* Two GPIO ports */ 41f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet}; 42f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet 43f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbetenum viafb_i2c_adap { 44f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet VIA_PORT_26 = 0, 45f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet VIA_PORT_31, 46f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet VIA_PORT_25, 47f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet VIA_PORT_2C, 48f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet VIA_PORT_3D, 49f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet}; 50f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet#define VIAFB_NUM_PORTS 5 51f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet 52f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbetstruct via_port_cfg { 53f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet enum via_port_type type; 54f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet enum via_port_mode mode; 5524b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet u16 io_port; 5624b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet u8 ioport_index; 57f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet}; 5824b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet 5924b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet/* 6024b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet * This is the global viafb "device" containing stuff needed by 6124b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet * all subdevs. 6224b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet */ 6324b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbetstruct viafb_dev { 6424b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet struct pci_dev *pdev; 6524b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet int chip_type; 667582eb9be85f35271fd2569681a88a5b243e9380Jonathan Corbet struct via_port_cfg *port_cfg; 6724b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet /* 6824b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet * Spinlock for access to device registers. Not yet 6924b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet * globally used. 7024b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet */ 7124b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet spinlock_t reg_lock; 7224b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet /* 7324b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet * The framebuffer MMIO region. Little, if anything, touches 7424b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet * this memory directly, and certainly nothing outside of the 7524b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet * framebuffer device itself. We *do* have to be able to allocate 7624b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet * chunks of this memory for other devices, though. 7724b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet */ 7824b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet unsigned long fbmem_start; 7924b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet long fbmem_len; 8024b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet void __iomem *fbmem; 8124b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet /* 8224b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet * The MMIO region for device registers. 8324b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet */ 8424b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet unsigned long engine_start; 8524b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet unsigned long engine_len; 8624b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet void __iomem *engine_mmio; 8724b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet 8824b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet}; 8924b4d82e4715841848a499534ed5cb7db3d6bca3Jonathan Corbet 9094dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet/* 9194dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet * Interrupt management. 9294dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet */ 9394dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet 9494dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbetvoid viafb_irq_enable(u32 mask); 9594dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbetvoid viafb_irq_disable(u32 mask); 9694dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet 9794dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet/* 9894dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet * The global interrupt control register and its bits. 9994dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet */ 10094dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_INTERRUPT 0x200 /* Video interrupt flags/masks */ 10194dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_DVISENSE 0x00000001 /* DVI sense int status */ 10294dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_VBLANK 0x00000002 /* Vertical blank status */ 10394dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_MCCFI 0x00000004 /* MCE compl. frame int status */ 10494dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_VSYNC 0x00000008 /* VGA VSYNC int status */ 10594dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_DMA0DDONE 0x00000010 /* DMA 0 descr done */ 10694dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_DMA0TDONE 0x00000020 /* DMA 0 transfer done */ 10794dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_DMA1DDONE 0x00000040 /* DMA 1 descr done */ 10894dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_DMA1TDONE 0x00000080 /* DMA 1 transfer done */ 10994dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_C1AV 0x00000100 /* Cap Eng 1 act vid end */ 11094dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_HQV0 0x00000200 /* First HQV engine */ 11194dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_HQV1 0x00000400 /* Second HQV engine */ 11294dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_HQV1EN 0x00000800 /* Second HQV engine enable */ 11394dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_C0AV 0x00001000 /* Cap Eng 0 act vid end */ 11494dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_C0VBI 0x00002000 /* Cap Eng 0 VBI end */ 11594dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_C1VBI 0x00004000 /* Cap Eng 1 VBI end */ 11694dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_VSYNC2 0x00008000 /* Sec. Disp. VSYNC */ 11794dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_DVISNSEN 0x00010000 /* DVI sense enable */ 11894dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_VSYNC2EN 0x00020000 /* Sec Disp VSYNC enable */ 11994dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_MCCFIEN 0x00040000 /* MC comp frame int mask enable */ 12094dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_VSYNCEN 0x00080000 /* VSYNC enable */ 12194dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_DMA0DDEN 0x00100000 /* DMA 0 descr done enable */ 12294dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_DMA0TDEN 0x00200000 /* DMA 0 trans done enable */ 12394dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_DMA1DDEN 0x00400000 /* DMA 1 descr done enable */ 12494dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_DMA1TDEN 0x00800000 /* DMA 1 trans done enable */ 12594dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_C1AVEN 0x01000000 /* cap 1 act vid end enable */ 12694dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_HQV0EN 0x02000000 /* First hqv engine enable */ 12794dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_C1VBIEN 0x04000000 /* Cap 1 VBI end enable */ 12894dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_LVDSSI 0x08000000 /* LVDS sense interrupt */ 12994dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_C0AVEN 0x10000000 /* Cap 0 act vid end enable */ 13094dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_C0VBIEN 0x20000000 /* Cap 0 VBI end enable */ 13194dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_LVDSSIEN 0x40000000 /* LVDS Sense enable */ 13294dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet#define VDE_I_ENABLE 0x80000000 /* Global interrupt enable */ 13394dd1a856b23bd51dfebf68e6dd63cfd4d4fd5aeJonathan Corbet 1343d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet/* 1353d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet * DMA management. 1363d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet */ 1373d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbetint viafb_request_dma(void); 1383d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbetvoid viafb_release_dma(void); 1393d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet/* void viafb_dma_copy_out(unsigned int offset, dma_addr_t paddr, int len); */ 1403d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbetint viafb_dma_copy_out_sg(unsigned int offset, struct scatterlist *sg, int nsg); 1413d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet 1423d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet/* 1433d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet * DMA Controller registers. 1443d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet */ 1453d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet#define VDMA_MR0 0xe00 /* Mod reg 0 */ 1463d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet#define VDMA_MR_CHAIN 0x01 /* Chaining mode */ 1473d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet#define VDMA_MR_TDIE 0x02 /* Transfer done int enable */ 1483d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet#define VDMA_CSR0 0xe04 /* Control/status */ 1493d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet#define VDMA_C_ENABLE 0x01 /* DMA Enable */ 1503d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet#define VDMA_C_START 0x02 /* Start a transfer */ 1513d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet#define VDMA_C_ABORT 0x04 /* Abort a transfer */ 1523d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet#define VDMA_C_DONE 0x08 /* Transfer is done */ 1533d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet#define VDMA_MARL0 0xe20 /* Mem addr low */ 1543d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet#define VDMA_MARH0 0xe24 /* Mem addr high */ 1553d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet#define VDMA_DAR0 0xe28 /* Device address */ 1563d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet#define VDMA_DQWCR0 0xe2c /* Count (16-byte) */ 1573d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet#define VDMA_TMR0 0xe30 /* Tile mode reg */ 1583d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet#define VDMA_DPRL0 0xe34 /* Not sure */ 1593d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet#define VDMA_DPR_IN 0x08 /* Inbound transfer to FB */ 1603d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet#define VDMA_DPRH0 0xe38 1613d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet#define VDMA_PMR0 (0xe00 + 0x134) /* Pitch mode */ 1623d28eb42c52a799c806082e6d856f634ed1db902Jonathan Corbet 163f045f77bc0bf238a871b10bea9e425329a8e4abcJonathan Corbet#endif /* __VIA_CORE_H__ */ 164