1146 lines
26 KiB
C
1146 lines
26 KiB
C
/*
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* Silicon Motion SM7XX frame buffer device
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*
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* Copyright (C) 2006 Silicon Motion Technology Corp.
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* Authors: Ge Wang, gewang@siliconmotion.com
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* Boyod boyod.yang@siliconmotion.com.cn
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*
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* Copyright (C) 2009 Lemote, Inc.
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* Author: Wu Zhangjin, wuzhangjin@gmail.com
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file COPYING in the main directory of this archive for
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* more details.
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*
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* Version 0.10.26192.21.01
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* - Add PowerPC/Big endian support
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* - Add 2D support for Lynx
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* - Verified on2.6.19.2 Boyod.yang <boyod.yang@siliconmotion.com.cn>
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*
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* Version 0.09.2621.00.01
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* - Only support Linux Kernel's version 2.6.21.
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* Boyod.yang <boyod.yang@siliconmotion.com.cn>
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*
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* Version 0.09
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* - Only support Linux Kernel's version 2.6.12.
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* Boyod.yang <boyod.yang@siliconmotion.com.cn>
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*/
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#ifndef __KERNEL__
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#define __KERNEL__
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#endif
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#include <linux/io.h>
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#include <linux/fb.h>
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#include <linux/pci.h>
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <linux/uaccess.h>
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#include <linux/console.h>
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#include <linux/screen_info.h>
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#ifdef CONFIG_PM
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#include <linux/pm.h>
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#endif
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struct screen_info smtc_screen_info;
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#include "smtcfb.h"
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#ifdef DEBUG
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#define smdbg(format, arg...) printk(KERN_DEBUG format , ## arg)
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#else
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#define smdbg(format, arg...)
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#endif
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/*
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* Private structure
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*/
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struct smtcfb_info {
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/*
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* The following is a pointer to be passed into the
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* functions below. The modules outside the main
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* voyager.c driver have no knowledge as to what
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* is within this structure.
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*/
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struct fb_info fb;
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struct display_switch *dispsw;
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struct pci_dev *dev;
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signed int currcon;
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struct {
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u8 red, green, blue;
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} palette[NR_RGB];
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u_int palette_size;
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};
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struct par_info {
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/*
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* Hardware
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*/
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u16 chipID;
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unsigned char __iomem *m_pMMIO;
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char __iomem *m_pLFB;
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char *m_pDPR;
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char *m_pVPR;
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char *m_pCPR;
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u_int width;
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u_int height;
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u_int hz;
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u_long BaseAddressInVRAM;
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u8 chipRevID;
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};
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struct vesa_mode_table {
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char mode_index[6];
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u16 lfb_width;
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u16 lfb_height;
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u16 lfb_depth;
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};
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static struct vesa_mode_table vesa_mode[] = {
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{"0x301", 640, 480, 8},
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{"0x303", 800, 600, 8},
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{"0x305", 1024, 768, 8},
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{"0x307", 1280, 1024, 8},
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{"0x311", 640, 480, 16},
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{"0x314", 800, 600, 16},
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{"0x317", 1024, 768, 16},
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{"0x31A", 1280, 1024, 16},
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{"0x312", 640, 480, 24},
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{"0x315", 800, 600, 24},
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{"0x318", 1024, 768, 24},
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{"0x31B", 1280, 1024, 24},
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};
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char __iomem *smtc_RegBaseAddress; /* Memory Map IO starting address */
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char __iomem *smtc_VRAMBaseAddress; /* video memory starting address */
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static u32 colreg[17];
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static struct par_info hw; /* hardware information */
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u16 smtc_ChipIDs[] = {
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0x710,
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0x712,
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0x720
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};
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#define numSMTCchipIDs (sizeof(smtc_ChipIDs) / sizeof(u16))
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static void sm712_set_timing(struct smtcfb_info *sfb,
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struct par_info *ppar_info)
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{
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int i = 0, j = 0;
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u32 m_nScreenStride;
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smdbg("\nppar_info->width = %d ppar_info->height = %d"
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"sfb->fb.var.bits_per_pixel = %d ppar_info->hz = %d\n",
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ppar_info->width, ppar_info->height,
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sfb->fb.var.bits_per_pixel, ppar_info->hz);
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for (j = 0; j < numVGAModes; j++) {
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if (VGAMode[j].mmSizeX == ppar_info->width &&
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VGAMode[j].mmSizeY == ppar_info->height &&
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VGAMode[j].bpp == sfb->fb.var.bits_per_pixel &&
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VGAMode[j].hz == ppar_info->hz) {
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smdbg("\nVGAMode[j].mmSizeX = %d VGAMode[j].mmSizeY ="
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"%d VGAMode[j].bpp = %d"
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"VGAMode[j].hz=%d\n",
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VGAMode[j].mmSizeX, VGAMode[j].mmSizeY,
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VGAMode[j].bpp, VGAMode[j].hz);
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smdbg("VGAMode index=%d\n", j);
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smtc_mmiowb(0x0, 0x3c6);
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smtc_seqw(0, 0x1);
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smtc_mmiowb(VGAMode[j].Init_MISC, 0x3c2);
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/* init SEQ register SR00 - SR04 */
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for (i = 0; i < SIZE_SR00_SR04; i++)
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smtc_seqw(i, VGAMode[j].Init_SR00_SR04[i]);
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/* init SEQ register SR10 - SR24 */
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for (i = 0; i < SIZE_SR10_SR24; i++)
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smtc_seqw(i + 0x10,
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VGAMode[j].Init_SR10_SR24[i]);
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/* init SEQ register SR30 - SR75 */
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for (i = 0; i < SIZE_SR30_SR75; i++)
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if (((i + 0x30) != 0x62) \
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&& ((i + 0x30) != 0x6a) \
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&& ((i + 0x30) != 0x6b))
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smtc_seqw(i + 0x30,
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VGAMode[j].Init_SR30_SR75[i]);
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/* init SEQ register SR80 - SR93 */
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for (i = 0; i < SIZE_SR80_SR93; i++)
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smtc_seqw(i + 0x80,
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VGAMode[j].Init_SR80_SR93[i]);
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/* init SEQ register SRA0 - SRAF */
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for (i = 0; i < SIZE_SRA0_SRAF; i++)
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smtc_seqw(i + 0xa0,
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VGAMode[j].Init_SRA0_SRAF[i]);
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/* init Graphic register GR00 - GR08 */
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for (i = 0; i < SIZE_GR00_GR08; i++)
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smtc_grphw(i, VGAMode[j].Init_GR00_GR08[i]);
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/* init Attribute register AR00 - AR14 */
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for (i = 0; i < SIZE_AR00_AR14; i++)
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smtc_attrw(i, VGAMode[j].Init_AR00_AR14[i]);
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/* init CRTC register CR00 - CR18 */
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for (i = 0; i < SIZE_CR00_CR18; i++)
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smtc_crtcw(i, VGAMode[j].Init_CR00_CR18[i]);
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/* init CRTC register CR30 - CR4D */
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for (i = 0; i < SIZE_CR30_CR4D; i++)
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smtc_crtcw(i + 0x30,
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VGAMode[j].Init_CR30_CR4D[i]);
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/* init CRTC register CR90 - CRA7 */
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for (i = 0; i < SIZE_CR90_CRA7; i++)
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smtc_crtcw(i + 0x90,
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VGAMode[j].Init_CR90_CRA7[i]);
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}
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}
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smtc_mmiowb(0x67, 0x3c2);
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/* set VPR registers */
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writel(0x0, ppar_info->m_pVPR + 0x0C);
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writel(0x0, ppar_info->m_pVPR + 0x40);
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/* set data width */
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m_nScreenStride =
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(ppar_info->width * sfb->fb.var.bits_per_pixel) / 64;
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switch (sfb->fb.var.bits_per_pixel) {
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case 8:
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writel(0x0, ppar_info->m_pVPR + 0x0);
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break;
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case 16:
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writel(0x00020000, ppar_info->m_pVPR + 0x0);
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break;
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case 24:
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writel(0x00040000, ppar_info->m_pVPR + 0x0);
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break;
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case 32:
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writel(0x00030000, ppar_info->m_pVPR + 0x0);
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break;
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}
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writel((u32) (((m_nScreenStride + 2) << 16) | m_nScreenStride),
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ppar_info->m_pVPR + 0x10);
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}
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static void sm712_setpalette(int regno, unsigned red, unsigned green,
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unsigned blue, struct fb_info *info)
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{
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struct par_info *cur_par = (struct par_info *)info->par;
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if (cur_par->BaseAddressInVRAM)
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/*
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* second display palette for dual head. Enable CRT RAM, 6-bit
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* RAM
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*/
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smtc_seqw(0x66, (smtc_seqr(0x66) & 0xC3) | 0x20);
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else
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/* primary display palette. Enable LCD RAM only, 6-bit RAM */
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smtc_seqw(0x66, (smtc_seqr(0x66) & 0xC3) | 0x10);
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smtc_mmiowb(regno, dac_reg);
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smtc_mmiowb(red >> 10, dac_val);
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smtc_mmiowb(green >> 10, dac_val);
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smtc_mmiowb(blue >> 10, dac_val);
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}
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static void smtc_set_timing(struct smtcfb_info *sfb, struct par_info
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*ppar_info)
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{
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switch (ppar_info->chipID) {
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case 0x710:
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case 0x712:
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case 0x720:
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sm712_set_timing(sfb, ppar_info);
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break;
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}
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}
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static struct fb_var_screeninfo smtcfb_var = {
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.xres = 1024,
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.yres = 600,
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.xres_virtual = 1024,
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.yres_virtual = 600,
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.bits_per_pixel = 16,
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.red = {16, 8, 0},
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.green = {8, 8, 0},
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.blue = {0, 8, 0},
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.activate = FB_ACTIVATE_NOW,
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.height = -1,
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.width = -1,
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.vmode = FB_VMODE_NONINTERLACED,
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};
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static struct fb_fix_screeninfo smtcfb_fix = {
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.id = "sm712fb",
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.type = FB_TYPE_PACKED_PIXELS,
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.visual = FB_VISUAL_TRUECOLOR,
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.line_length = 800 * 3,
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.accel = FB_ACCEL_SMI_LYNX,
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};
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/* chan_to_field
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*
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* convert a colour value into a field position
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*
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* from pxafb.c
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*/
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static inline unsigned int chan_to_field(unsigned int chan,
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struct fb_bitfield *bf)
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{
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chan &= 0xffff;
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chan >>= 16 - bf->length;
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return chan << bf->offset;
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}
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static int cfb_blank(int blank_mode, struct fb_info *info)
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{
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/* clear DPMS setting */
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switch (blank_mode) {
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case FB_BLANK_UNBLANK:
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/* Screen On: HSync: On, VSync : On */
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smtc_seqw(0x01, (smtc_seqr(0x01) & (~0x20)));
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smtc_seqw(0x6a, 0x16);
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smtc_seqw(0x6b, 0x02);
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smtc_seqw(0x21, (smtc_seqr(0x21) & 0x77));
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smtc_seqw(0x22, (smtc_seqr(0x22) & (~0x30)));
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smtc_seqw(0x23, (smtc_seqr(0x23) & (~0xc0)));
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smtc_seqw(0x24, (smtc_seqr(0x24) | 0x01));
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smtc_seqw(0x31, (smtc_seqr(0x31) | 0x03));
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break;
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case FB_BLANK_NORMAL:
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/* Screen Off: HSync: On, VSync : On Soft blank */
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smtc_seqw(0x01, (smtc_seqr(0x01) & (~0x20)));
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smtc_seqw(0x6a, 0x16);
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smtc_seqw(0x6b, 0x02);
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smtc_seqw(0x22, (smtc_seqr(0x22) & (~0x30)));
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smtc_seqw(0x23, (smtc_seqr(0x23) & (~0xc0)));
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smtc_seqw(0x24, (smtc_seqr(0x24) | 0x01));
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smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
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break;
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case FB_BLANK_VSYNC_SUSPEND:
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/* Screen On: HSync: On, VSync : Off */
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smtc_seqw(0x01, (smtc_seqr(0x01) | 0x20));
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smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0)));
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smtc_seqw(0x6a, 0x0c);
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smtc_seqw(0x6b, 0x02);
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smtc_seqw(0x21, (smtc_seqr(0x21) | 0x88));
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smtc_seqw(0x22, ((smtc_seqr(0x22) & (~0x30)) | 0x20));
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smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0x20));
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smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01)));
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smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
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smtc_seqw(0x34, (smtc_seqr(0x34) | 0x80));
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break;
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case FB_BLANK_HSYNC_SUSPEND:
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/* Screen On: HSync: Off, VSync : On */
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smtc_seqw(0x01, (smtc_seqr(0x01) | 0x20));
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smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0)));
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smtc_seqw(0x6a, 0x0c);
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smtc_seqw(0x6b, 0x02);
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smtc_seqw(0x21, (smtc_seqr(0x21) | 0x88));
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smtc_seqw(0x22, ((smtc_seqr(0x22) & (~0x30)) | 0x10));
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smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0xD8));
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smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01)));
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smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
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smtc_seqw(0x34, (smtc_seqr(0x34) | 0x80));
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break;
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case FB_BLANK_POWERDOWN:
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/* Screen On: HSync: Off, VSync : Off */
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smtc_seqw(0x01, (smtc_seqr(0x01) | 0x20));
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smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0)));
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smtc_seqw(0x6a, 0x0c);
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smtc_seqw(0x6b, 0x02);
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smtc_seqw(0x21, (smtc_seqr(0x21) | 0x88));
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smtc_seqw(0x22, ((smtc_seqr(0x22) & (~0x30)) | 0x30));
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smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0xD8));
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smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01)));
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smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
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smtc_seqw(0x34, (smtc_seqr(0x34) | 0x80));
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break;
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default:
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return -EINVAL;
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}
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return 0;
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}
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static int smtc_setcolreg(unsigned regno, unsigned red, unsigned green,
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unsigned blue, unsigned trans, struct fb_info *info)
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{
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struct smtcfb_info *sfb = (struct smtcfb_info *)info;
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u32 val;
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if (regno > 255)
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return 1;
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switch (sfb->fb.fix.visual) {
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case FB_VISUAL_DIRECTCOLOR:
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case FB_VISUAL_TRUECOLOR:
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/*
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* 16/32 bit true-colour, use pseuo-palette for 16 base color
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*/
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if (regno < 16) {
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if (sfb->fb.var.bits_per_pixel == 16) {
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u32 *pal = sfb->fb.pseudo_palette;
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val = chan_to_field(red, &sfb->fb.var.red);
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val |= chan_to_field(green, \
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&sfb->fb.var.green);
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val |= chan_to_field(blue, &sfb->fb.var.blue);
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#ifdef __BIG_ENDIAN
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pal[regno] =
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((red & 0xf800) >> 8) |
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((green & 0xe000) >> 13) |
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((green & 0x1c00) << 3) |
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((blue & 0xf800) >> 3);
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#else
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pal[regno] = val;
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#endif
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} else {
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u32 *pal = sfb->fb.pseudo_palette;
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val = chan_to_field(red, &sfb->fb.var.red);
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val |= chan_to_field(green, \
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&sfb->fb.var.green);
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val |= chan_to_field(blue, &sfb->fb.var.blue);
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#ifdef __BIG_ENDIAN
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val =
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(val & 0xff00ff00 >> 8) |
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(val & 0x00ff00ff << 8);
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#endif
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pal[regno] = val;
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}
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}
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break;
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case FB_VISUAL_PSEUDOCOLOR:
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/* color depth 8 bit */
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sm712_setpalette(regno, red, green, blue, info);
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break;
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default:
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return 1; /* unknown type */
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}
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return 0;
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}
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|
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#ifdef __BIG_ENDIAN
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static ssize_t smtcfb_read(struct fb_info *info, char __user * buf, size_t
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count, loff_t *ppos)
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{
|
|
unsigned long p = *ppos;
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|
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u32 *buffer, *dst;
|
|
u32 __iomem *src;
|
|
int c, i, cnt = 0, err = 0;
|
|
unsigned long total_size;
|
|
|
|
if (!info || !info->screen_base)
|
|
return -ENODEV;
|
|
|
|
if (info->state != FBINFO_STATE_RUNNING)
|
|
return -EPERM;
|
|
|
|
total_size = info->screen_size;
|
|
|
|
if (total_size == 0)
|
|
total_size = info->fix.smem_len;
|
|
|
|
if (p >= total_size)
|
|
return 0;
|
|
|
|
if (count >= total_size)
|
|
count = total_size;
|
|
|
|
if (count + p > total_size)
|
|
count = total_size - p;
|
|
|
|
buffer = kmalloc((count > PAGE_SIZE) ? PAGE_SIZE : count, GFP_KERNEL);
|
|
if (!buffer)
|
|
return -ENOMEM;
|
|
|
|
src = (u32 __iomem *) (info->screen_base + p);
|
|
|
|
if (info->fbops->fb_sync)
|
|
info->fbops->fb_sync(info);
|
|
|
|
while (count) {
|
|
c = (count > PAGE_SIZE) ? PAGE_SIZE : count;
|
|
dst = buffer;
|
|
for (i = c >> 2; i--;) {
|
|
*dst = fb_readl(src++);
|
|
*dst =
|
|
(*dst & 0xff00ff00 >> 8) |
|
|
(*dst & 0x00ff00ff << 8);
|
|
dst++;
|
|
}
|
|
if (c & 3) {
|
|
u8 *dst8 = (u8 *) dst;
|
|
u8 __iomem *src8 = (u8 __iomem *) src;
|
|
|
|
for (i = c & 3; i--;) {
|
|
if (i & 1) {
|
|
*dst8++ = fb_readb(++src8);
|
|
} else {
|
|
*dst8++ = fb_readb(--src8);
|
|
src8 += 2;
|
|
}
|
|
}
|
|
src = (u32 __iomem *) src8;
|
|
}
|
|
|
|
if (copy_to_user(buf, buffer, c)) {
|
|
err = -EFAULT;
|
|
break;
|
|
}
|
|
*ppos += c;
|
|
buf += c;
|
|
cnt += c;
|
|
count -= c;
|
|
}
|
|
|
|
kfree(buffer);
|
|
|
|
return (err) ? err : cnt;
|
|
}
|
|
|
|
static ssize_t
|
|
smtcfb_write(struct fb_info *info, const char __user *buf, size_t count,
|
|
loff_t *ppos)
|
|
{
|
|
unsigned long p = *ppos;
|
|
|
|
u32 *buffer, *src;
|
|
u32 __iomem *dst;
|
|
int c, i, cnt = 0, err = 0;
|
|
unsigned long total_size;
|
|
|
|
if (!info || !info->screen_base)
|
|
return -ENODEV;
|
|
|
|
if (info->state != FBINFO_STATE_RUNNING)
|
|
return -EPERM;
|
|
|
|
total_size = info->screen_size;
|
|
|
|
if (total_size == 0)
|
|
total_size = info->fix.smem_len;
|
|
|
|
if (p > total_size)
|
|
return -EFBIG;
|
|
|
|
if (count > total_size) {
|
|
err = -EFBIG;
|
|
count = total_size;
|
|
}
|
|
|
|
if (count + p > total_size) {
|
|
if (!err)
|
|
err = -ENOSPC;
|
|
|
|
count = total_size - p;
|
|
}
|
|
|
|
buffer = kmalloc((count > PAGE_SIZE) ? PAGE_SIZE : count, GFP_KERNEL);
|
|
if (!buffer)
|
|
return -ENOMEM;
|
|
|
|
dst = (u32 __iomem *) (info->screen_base + p);
|
|
|
|
if (info->fbops->fb_sync)
|
|
info->fbops->fb_sync(info);
|
|
|
|
while (count) {
|
|
c = (count > PAGE_SIZE) ? PAGE_SIZE : count;
|
|
src = buffer;
|
|
|
|
if (copy_from_user(src, buf, c)) {
|
|
err = -EFAULT;
|
|
break;
|
|
}
|
|
|
|
for (i = c >> 2; i--;) {
|
|
fb_writel((*src & 0xff00ff00 >> 8) |
|
|
(*src & 0x00ff00ff << 8), dst++);
|
|
src++;
|
|
}
|
|
if (c & 3) {
|
|
u8 *src8 = (u8 *) src;
|
|
u8 __iomem *dst8 = (u8 __iomem *) dst;
|
|
|
|
for (i = c & 3; i--;) {
|
|
if (i & 1) {
|
|
fb_writeb(*src8++, ++dst8);
|
|
} else {
|
|
fb_writeb(*src8++, --dst8);
|
|
dst8 += 2;
|
|
}
|
|
}
|
|
dst = (u32 __iomem *) dst8;
|
|
}
|
|
|
|
*ppos += c;
|
|
buf += c;
|
|
cnt += c;
|
|
count -= c;
|
|
}
|
|
|
|
kfree(buffer);
|
|
|
|
return (cnt) ? cnt : err;
|
|
}
|
|
#endif /* ! __BIG_ENDIAN */
|
|
|
|
static struct fb_ops smtcfb_ops = {
|
|
.owner = THIS_MODULE,
|
|
.fb_setcolreg = smtc_setcolreg,
|
|
.fb_blank = cfb_blank,
|
|
.fb_fillrect = cfb_fillrect,
|
|
.fb_imageblit = cfb_imageblit,
|
|
.fb_copyarea = cfb_copyarea,
|
|
#ifdef __BIG_ENDIAN
|
|
.fb_read = smtcfb_read,
|
|
.fb_write = smtcfb_write,
|
|
#endif
|
|
|
|
};
|
|
|
|
void smtcfb_setmode(struct smtcfb_info *sfb)
|
|
{
|
|
switch (sfb->fb.var.bits_per_pixel) {
|
|
case 32:
|
|
sfb->fb.fix.visual = FB_VISUAL_TRUECOLOR;
|
|
sfb->fb.fix.line_length = sfb->fb.var.xres * 4;
|
|
sfb->fb.var.red.length = 8;
|
|
sfb->fb.var.green.length = 8;
|
|
sfb->fb.var.blue.length = 8;
|
|
sfb->fb.var.red.offset = 16;
|
|
sfb->fb.var.green.offset = 8;
|
|
sfb->fb.var.blue.offset = 0;
|
|
|
|
break;
|
|
case 8:
|
|
sfb->fb.fix.visual = FB_VISUAL_PSEUDOCOLOR;
|
|
sfb->fb.fix.line_length = sfb->fb.var.xres;
|
|
sfb->fb.var.red.offset = 5;
|
|
sfb->fb.var.red.length = 3;
|
|
sfb->fb.var.green.offset = 2;
|
|
sfb->fb.var.green.length = 3;
|
|
sfb->fb.var.blue.offset = 0;
|
|
sfb->fb.var.blue.length = 2;
|
|
break;
|
|
case 24:
|
|
sfb->fb.fix.visual = FB_VISUAL_TRUECOLOR;
|
|
sfb->fb.fix.line_length = sfb->fb.var.xres * 3;
|
|
sfb->fb.var.red.length = 8;
|
|
sfb->fb.var.green.length = 8;
|
|
sfb->fb.var.blue.length = 8;
|
|
|
|
sfb->fb.var.red.offset = 16;
|
|
sfb->fb.var.green.offset = 8;
|
|
sfb->fb.var.blue.offset = 0;
|
|
|
|
break;
|
|
case 16:
|
|
default:
|
|
sfb->fb.fix.visual = FB_VISUAL_TRUECOLOR;
|
|
sfb->fb.fix.line_length = sfb->fb.var.xres * 2;
|
|
|
|
sfb->fb.var.red.length = 5;
|
|
sfb->fb.var.green.length = 6;
|
|
sfb->fb.var.blue.length = 5;
|
|
|
|
sfb->fb.var.red.offset = 11;
|
|
sfb->fb.var.green.offset = 5;
|
|
sfb->fb.var.blue.offset = 0;
|
|
|
|
break;
|
|
}
|
|
|
|
hw.width = sfb->fb.var.xres;
|
|
hw.height = sfb->fb.var.yres;
|
|
hw.hz = 60;
|
|
smtc_set_timing(sfb, &hw);
|
|
}
|
|
|
|
/*
|
|
* Alloc struct smtcfb_info and assign the default value
|
|
*/
|
|
static struct smtcfb_info *smtc_alloc_fb_info(struct pci_dev *dev,
|
|
char *name)
|
|
{
|
|
struct smtcfb_info *sfb;
|
|
|
|
sfb = kmalloc(sizeof(struct smtcfb_info), GFP_KERNEL);
|
|
|
|
if (!sfb)
|
|
return NULL;
|
|
|
|
memset(sfb, 0, sizeof(struct smtcfb_info));
|
|
|
|
sfb->currcon = -1;
|
|
sfb->dev = dev;
|
|
|
|
/*** Init sfb->fb with default value ***/
|
|
sfb->fb.flags = FBINFO_FLAG_DEFAULT;
|
|
sfb->fb.fbops = &smtcfb_ops;
|
|
sfb->fb.var = smtcfb_var;
|
|
sfb->fb.fix = smtcfb_fix;
|
|
|
|
strcpy(sfb->fb.fix.id, name);
|
|
|
|
sfb->fb.fix.type = FB_TYPE_PACKED_PIXELS;
|
|
sfb->fb.fix.type_aux = 0;
|
|
sfb->fb.fix.xpanstep = 0;
|
|
sfb->fb.fix.ypanstep = 0;
|
|
sfb->fb.fix.ywrapstep = 0;
|
|
sfb->fb.fix.accel = FB_ACCEL_SMI_LYNX;
|
|
|
|
sfb->fb.var.nonstd = 0;
|
|
sfb->fb.var.activate = FB_ACTIVATE_NOW;
|
|
sfb->fb.var.height = -1;
|
|
sfb->fb.var.width = -1;
|
|
/* text mode acceleration */
|
|
sfb->fb.var.accel_flags = FB_ACCELF_TEXT;
|
|
sfb->fb.var.vmode = FB_VMODE_NONINTERLACED;
|
|
sfb->fb.par = &hw;
|
|
sfb->fb.pseudo_palette = colreg;
|
|
|
|
return sfb;
|
|
}
|
|
|
|
/*
|
|
* Unmap in the memory mapped IO registers
|
|
*/
|
|
|
|
static void smtc_unmap_mmio(struct smtcfb_info *sfb)
|
|
{
|
|
if (sfb && smtc_RegBaseAddress)
|
|
smtc_RegBaseAddress = NULL;
|
|
}
|
|
|
|
/*
|
|
* Map in the screen memory
|
|
*/
|
|
|
|
static int smtc_map_smem(struct smtcfb_info *sfb,
|
|
struct pci_dev *dev, u_long smem_len)
|
|
{
|
|
if (sfb->fb.var.bits_per_pixel == 32) {
|
|
#ifdef __BIG_ENDIAN
|
|
sfb->fb.fix.smem_start = pci_resource_start(dev, 0)
|
|
+ 0x800000;
|
|
#else
|
|
sfb->fb.fix.smem_start = pci_resource_start(dev, 0);
|
|
#endif
|
|
} else {
|
|
sfb->fb.fix.smem_start = pci_resource_start(dev, 0);
|
|
}
|
|
|
|
sfb->fb.fix.smem_len = smem_len;
|
|
|
|
sfb->fb.screen_base = smtc_VRAMBaseAddress;
|
|
|
|
if (!sfb->fb.screen_base) {
|
|
printk(KERN_INFO "%s: unable to map screen memory\n",
|
|
sfb->fb.fix.id);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Unmap in the screen memory
|
|
*
|
|
*/
|
|
static void smtc_unmap_smem(struct smtcfb_info *sfb)
|
|
{
|
|
if (sfb && sfb->fb.screen_base) {
|
|
iounmap(sfb->fb.screen_base);
|
|
sfb->fb.screen_base = NULL;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* We need to wake up the LynxEM+, and make sure its in linear memory mode.
|
|
*/
|
|
static inline void sm7xx_init_hw(void)
|
|
{
|
|
outb_p(0x18, 0x3c4);
|
|
outb_p(0x11, 0x3c5);
|
|
}
|
|
|
|
static void smtc_free_fb_info(struct smtcfb_info *sfb)
|
|
{
|
|
if (sfb) {
|
|
fb_alloc_cmap(&sfb->fb.cmap, 0, 0);
|
|
kfree(sfb);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* sm712vga_setup - process command line options, get vga parameter
|
|
* @options: string of options
|
|
* Returns zero.
|
|
*
|
|
*/
|
|
static int __init __maybe_unused sm712vga_setup(char *options)
|
|
{
|
|
int index;
|
|
|
|
if (!options || !*options) {
|
|
smdbg("\n No vga parameter\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
smtc_screen_info.lfb_width = 0;
|
|
smtc_screen_info.lfb_height = 0;
|
|
smtc_screen_info.lfb_depth = 0;
|
|
|
|
smdbg("\nsm712vga_setup = %s\n", options);
|
|
|
|
for (index = 0;
|
|
index < (sizeof(vesa_mode) / sizeof(struct vesa_mode_table));
|
|
index++) {
|
|
if (strstr(options, vesa_mode[index].mode_index)) {
|
|
smtc_screen_info.lfb_width = vesa_mode[index].lfb_width;
|
|
smtc_screen_info.lfb_height =
|
|
vesa_mode[index].lfb_height;
|
|
smtc_screen_info.lfb_depth = vesa_mode[index].lfb_depth;
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
__setup("vga=", sm712vga_setup);
|
|
|
|
/* Jason (08/13/2009)
|
|
* Original init function changed to probe method to be used by pci_drv
|
|
* process used to detect chips replaced with kernel process in pci_drv
|
|
*/
|
|
static int __init smtcfb_pci_probe(struct pci_dev *pdev,
|
|
const struct pci_device_id *ent)
|
|
{
|
|
struct smtcfb_info *sfb;
|
|
u_long smem_size = 0x00800000; /* default 8MB */
|
|
char name[16];
|
|
int err;
|
|
unsigned long pFramebufferPhysical;
|
|
|
|
printk(KERN_INFO
|
|
"Silicon Motion display driver " SMTC_LINUX_FB_VERSION "\n");
|
|
|
|
err = pci_enable_device(pdev); /* enable SMTC chip */
|
|
|
|
if (err)
|
|
return err;
|
|
err = -ENOMEM;
|
|
|
|
hw.chipID = ent->device;
|
|
sprintf(name, "sm%Xfb", hw.chipID);
|
|
|
|
sfb = smtc_alloc_fb_info(pdev, name);
|
|
|
|
if (!sfb)
|
|
goto failed;
|
|
/* Jason (08/13/2009)
|
|
* Store fb_info to be further used when suspending and resuming
|
|
*/
|
|
pci_set_drvdata(pdev, sfb);
|
|
|
|
sm7xx_init_hw();
|
|
|
|
/*get mode parameter from smtc_screen_info */
|
|
if (smtc_screen_info.lfb_width != 0) {
|
|
sfb->fb.var.xres = smtc_screen_info.lfb_width;
|
|
sfb->fb.var.yres = smtc_screen_info.lfb_height;
|
|
sfb->fb.var.bits_per_pixel = smtc_screen_info.lfb_depth;
|
|
} else {
|
|
/* default resolution 1024x600 16bit mode */
|
|
sfb->fb.var.xres = SCREEN_X_RES;
|
|
sfb->fb.var.yres = SCREEN_Y_RES;
|
|
sfb->fb.var.bits_per_pixel = SCREEN_BPP;
|
|
}
|
|
|
|
#ifdef __BIG_ENDIAN
|
|
if (sfb->fb.var.bits_per_pixel == 24)
|
|
sfb->fb.var.bits_per_pixel = (smtc_screen_info.lfb_depth = 32);
|
|
#endif
|
|
/* Map address and memory detection */
|
|
pFramebufferPhysical = pci_resource_start(pdev, 0);
|
|
pci_read_config_byte(pdev, PCI_REVISION_ID, &hw.chipRevID);
|
|
|
|
switch (hw.chipID) {
|
|
case 0x710:
|
|
case 0x712:
|
|
sfb->fb.fix.mmio_start = pFramebufferPhysical + 0x00400000;
|
|
sfb->fb.fix.mmio_len = 0x00400000;
|
|
smem_size = SM712_VIDEOMEMORYSIZE;
|
|
#ifdef __BIG_ENDIAN
|
|
hw.m_pLFB = (smtc_VRAMBaseAddress =
|
|
ioremap(pFramebufferPhysical, 0x00c00000));
|
|
#else
|
|
hw.m_pLFB = (smtc_VRAMBaseAddress =
|
|
ioremap(pFramebufferPhysical, 0x00800000));
|
|
#endif
|
|
hw.m_pMMIO = (smtc_RegBaseAddress =
|
|
smtc_VRAMBaseAddress + 0x00700000);
|
|
hw.m_pDPR = smtc_VRAMBaseAddress + 0x00408000;
|
|
hw.m_pVPR = hw.m_pLFB + 0x0040c000;
|
|
#ifdef __BIG_ENDIAN
|
|
if (sfb->fb.var.bits_per_pixel == 32) {
|
|
smtc_VRAMBaseAddress += 0x800000;
|
|
hw.m_pLFB += 0x800000;
|
|
printk(KERN_INFO
|
|
"\nsmtc_VRAMBaseAddress=%p hw.m_pLFB=%p\n",
|
|
smtc_VRAMBaseAddress, hw.m_pLFB);
|
|
}
|
|
#endif
|
|
if (!smtc_RegBaseAddress) {
|
|
printk(KERN_INFO
|
|
"%s: unable to map memory mapped IO\n",
|
|
sfb->fb.fix.id);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
/* set MCLK = 14.31818 * (0x16 / 0x2) */
|
|
smtc_seqw(0x6a, 0x16);
|
|
smtc_seqw(0x6b, 0x02);
|
|
smtc_seqw(0x62, 0x3e);
|
|
/* enable PCI burst */
|
|
smtc_seqw(0x17, 0x20);
|
|
/* enable word swap */
|
|
#ifdef __BIG_ENDIAN
|
|
if (sfb->fb.var.bits_per_pixel == 32)
|
|
smtc_seqw(0x17, 0x30);
|
|
#endif
|
|
break;
|
|
case 0x720:
|
|
sfb->fb.fix.mmio_start = pFramebufferPhysical;
|
|
sfb->fb.fix.mmio_len = 0x00200000;
|
|
smem_size = SM722_VIDEOMEMORYSIZE;
|
|
hw.m_pDPR = ioremap(pFramebufferPhysical, 0x00a00000);
|
|
hw.m_pLFB = (smtc_VRAMBaseAddress =
|
|
hw.m_pDPR + 0x00200000);
|
|
hw.m_pMMIO = (smtc_RegBaseAddress =
|
|
hw.m_pDPR + 0x000c0000);
|
|
hw.m_pVPR = hw.m_pDPR + 0x800;
|
|
|
|
smtc_seqw(0x62, 0xff);
|
|
smtc_seqw(0x6a, 0x0d);
|
|
smtc_seqw(0x6b, 0x02);
|
|
break;
|
|
default:
|
|
printk(KERN_INFO
|
|
"No valid Silicon Motion display chip was detected!\n");
|
|
|
|
smtc_free_fb_info(sfb);
|
|
return err;
|
|
}
|
|
|
|
/* can support 32 bpp */
|
|
if (15 == sfb->fb.var.bits_per_pixel)
|
|
sfb->fb.var.bits_per_pixel = 16;
|
|
|
|
sfb->fb.var.xres_virtual = sfb->fb.var.xres;
|
|
sfb->fb.var.yres_virtual = sfb->fb.var.yres;
|
|
err = smtc_map_smem(sfb, pdev, smem_size);
|
|
if (err)
|
|
goto failed;
|
|
|
|
smtcfb_setmode(sfb);
|
|
/* Primary display starting from 0 postion */
|
|
hw.BaseAddressInVRAM = 0;
|
|
sfb->fb.par = &hw;
|
|
|
|
err = register_framebuffer(&sfb->fb);
|
|
if (err < 0)
|
|
goto failed;
|
|
|
|
printk(KERN_INFO "Silicon Motion SM%X Rev%X primary display mode"
|
|
"%dx%d-%d Init Complete.\n", hw.chipID, hw.chipRevID,
|
|
sfb->fb.var.xres, sfb->fb.var.yres,
|
|
sfb->fb.var.bits_per_pixel);
|
|
|
|
return 0;
|
|
|
|
failed:
|
|
printk(KERN_INFO "Silicon Motion, Inc. primary display init fail\n");
|
|
|
|
smtc_unmap_smem(sfb);
|
|
smtc_unmap_mmio(sfb);
|
|
smtc_free_fb_info(sfb);
|
|
|
|
return err;
|
|
}
|
|
|
|
|
|
/* Jason (08/11/2009) PCI_DRV wrapper essential structs */
|
|
static const struct pci_device_id smtcfb_pci_table[] = {
|
|
{0x126f, 0x710, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
|
|
{0x126f, 0x712, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
|
|
{0x126f, 0x720, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
|
|
{0,}
|
|
};
|
|
|
|
|
|
/* Jason (08/14/2009)
|
|
* do some clean up when the driver module is removed
|
|
*/
|
|
static void __devexit smtcfb_pci_remove(struct pci_dev *pdev)
|
|
{
|
|
struct smtcfb_info *sfb;
|
|
|
|
sfb = pci_get_drvdata(pdev);
|
|
pci_set_drvdata(pdev, NULL);
|
|
smtc_unmap_smem(sfb);
|
|
smtc_unmap_mmio(sfb);
|
|
unregister_framebuffer(&sfb->fb);
|
|
smtc_free_fb_info(sfb);
|
|
}
|
|
|
|
/* Jason (08/14/2009)
|
|
* suspend function, called when the suspend event is triggered
|
|
*/
|
|
static int __maybe_unused smtcfb_suspend(struct pci_dev *pdev, pm_message_t msg)
|
|
{
|
|
struct smtcfb_info *sfb;
|
|
int retv;
|
|
|
|
sfb = pci_get_drvdata(pdev);
|
|
|
|
/* set the hw in sleep mode use externel clock and self memory refresh
|
|
* so that we can turn off internal PLLs later on
|
|
*/
|
|
smtc_seqw(0x20, (smtc_seqr(0x20) | 0xc0));
|
|
smtc_seqw(0x69, (smtc_seqr(0x69) & 0xf7));
|
|
|
|
switch (msg.event) {
|
|
case PM_EVENT_FREEZE:
|
|
case PM_EVENT_PRETHAW:
|
|
pdev->dev.power.power_state = msg;
|
|
return 0;
|
|
}
|
|
|
|
/* when doing suspend, call fb apis and pci apis */
|
|
if (msg.event == PM_EVENT_SUSPEND) {
|
|
acquire_console_sem();
|
|
fb_set_suspend(&sfb->fb, 1);
|
|
release_console_sem();
|
|
retv = pci_save_state(pdev);
|
|
pci_disable_device(pdev);
|
|
retv = pci_choose_state(pdev, msg);
|
|
retv = pci_set_power_state(pdev, retv);
|
|
}
|
|
|
|
pdev->dev.power.power_state = msg;
|
|
|
|
/* additionaly turn off all function blocks including internal PLLs */
|
|
smtc_seqw(0x21, 0xff);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int __maybe_unused smtcfb_resume(struct pci_dev *pdev)
|
|
{
|
|
struct smtcfb_info *sfb;
|
|
int retv;
|
|
|
|
sfb = pci_get_drvdata(pdev);
|
|
|
|
/* when resuming, restore pci data and fb cursor */
|
|
if (pdev->dev.power.power_state.event != PM_EVENT_FREEZE) {
|
|
retv = pci_set_power_state(pdev, PCI_D0);
|
|
retv = pci_restore_state(pdev);
|
|
if (pci_enable_device(pdev))
|
|
return -1;
|
|
pci_set_master(pdev);
|
|
}
|
|
|
|
/* reinit hardware */
|
|
sm7xx_init_hw();
|
|
switch (hw.chipID) {
|
|
case 0x710:
|
|
case 0x712:
|
|
/* set MCLK = 14.31818 * (0x16 / 0x2) */
|
|
smtc_seqw(0x6a, 0x16);
|
|
smtc_seqw(0x6b, 0x02);
|
|
smtc_seqw(0x62, 0x3e);
|
|
/* enable PCI burst */
|
|
smtc_seqw(0x17, 0x20);
|
|
#ifdef __BIG_ENDIAN
|
|
if (sfb->fb.var.bits_per_pixel == 32)
|
|
smtc_seqw(0x17, 0x30);
|
|
#endif
|
|
break;
|
|
case 0x720:
|
|
smtc_seqw(0x62, 0xff);
|
|
smtc_seqw(0x6a, 0x0d);
|
|
smtc_seqw(0x6b, 0x02);
|
|
break;
|
|
}
|
|
|
|
smtc_seqw(0x34, (smtc_seqr(0x34) | 0xc0));
|
|
smtc_seqw(0x33, ((smtc_seqr(0x33) | 0x08) & 0xfb));
|
|
|
|
smtcfb_setmode(sfb);
|
|
|
|
acquire_console_sem();
|
|
fb_set_suspend(&sfb->fb, 0);
|
|
release_console_sem();
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Jason (08/13/2009)
|
|
* pci_driver struct used to wrap the original driver
|
|
* so that it can be registered into the kernel and
|
|
* the proper method would be called when suspending and resuming
|
|
*/
|
|
static struct pci_driver smtcfb_driver = {
|
|
.name = "smtcfb",
|
|
.id_table = smtcfb_pci_table,
|
|
.probe = smtcfb_pci_probe,
|
|
.remove = __devexit_p(smtcfb_pci_remove),
|
|
#ifdef CONFIG_PM
|
|
.suspend = smtcfb_suspend,
|
|
.resume = smtcfb_resume,
|
|
#endif
|
|
};
|
|
|
|
static int __init smtcfb_init(void)
|
|
{
|
|
return pci_register_driver(&smtcfb_driver);
|
|
}
|
|
|
|
static void __exit smtcfb_exit(void)
|
|
{
|
|
pci_unregister_driver(&smtcfb_driver);
|
|
}
|
|
|
|
module_init(smtcfb_init);
|
|
module_exit(smtcfb_exit);
|
|
|
|
MODULE_AUTHOR("Siliconmotion ");
|
|
MODULE_DESCRIPTION("Framebuffer driver for SMI Graphic Cards");
|
|
MODULE_LICENSE("GPL");
|