diff options
Diffstat (limited to 'drivers/video/i810/i810_main.c')
| -rw-r--r-- | drivers/video/i810/i810_main.c | 2218 |
1 files changed, 0 insertions, 2218 deletions
diff --git a/drivers/video/i810/i810_main.c b/drivers/video/i810/i810_main.c deleted file mode 100644 index bb674e431741..000000000000 --- a/drivers/video/i810/i810_main.c +++ /dev/null @@ -1,2218 +0,0 @@ - /*-*- linux-c -*- - * linux/drivers/video/i810_main.c -- Intel 810 frame buffer device - * - * Copyright (C) 2001 Antonino Daplas<adaplas@pol.net> - * All Rights Reserved - * - * Contributors: - * Michael Vogt <mvogt@acm.org> - added support for Intel 815 chipsets - * and enabling the power-on state of - * external VGA connectors for - * secondary displays - * - * Fredrik Andersson <krueger@shell.linux.se> - alpha testing of - * the VESA GTF - * - * Brad Corrion <bcorrion@web-co.com> - alpha testing of customized - * timings support - * - * The code framework is a modification of vfb.c by Geert Uytterhoeven. - * DotClock and PLL calculations are partly based on i810_driver.c - * in xfree86 v4.0.3 by Precision Insight. - * Watermark calculation and tables are based on i810_wmark.c - * in xfre86 v4.0.3 by Precision Insight. Slight modifications - * only to allow for integer operations instead of floating point. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive for - * more details. - */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/string.h> -#include <linux/mm.h> -#include <linux/slab.h> -#include <linux/fb.h> -#include <linux/init.h> -#include <linux/pci.h> -#include <linux/pci_ids.h> -#include <linux/resource.h> -#include <linux/unistd.h> -#include <linux/console.h> - -#include <asm/io.h> -#include <asm/div64.h> -#include <asm/page.h> - -#include "i810_regs.h" -#include "i810.h" -#include "i810_main.h" - -/* - * voffset - framebuffer offset in MiB from aperture start address. In order for - * the driver to work with X, we must try to use memory holes left untouched by X. The - * following table lists where X's different surfaces start at. - * - * --------------------------------------------- - * : : 64 MiB : 32 MiB : - * ---------------------------------------------- - * : FrontBuffer : 0 : 0 : - * : DepthBuffer : 48 : 16 : - * : BackBuffer : 56 : 24 : - * ---------------------------------------------- - * - * So for chipsets with 64 MiB Aperture sizes, 32 MiB for v_offset is okay, allowing up to - * 15 + 1 MiB of Framebuffer memory. For 32 MiB Aperture sizes, a v_offset of 8 MiB should - * work, allowing 7 + 1 MiB of Framebuffer memory. - * Note, the size of the hole may change depending on how much memory you allocate to X, - * and how the memory is split up between these surfaces. - * - * Note: Anytime the DepthBuffer or FrontBuffer is overlapped, X would still run but with - * DRI disabled. But if the Frontbuffer is overlapped, X will fail to load. - * - * Experiment with v_offset to find out which works best for you. - */ -static u32 v_offset_default; /* For 32 MiB Aper size, 8 should be the default */ -static u32 voffset; - -static int i810fb_cursor(struct fb_info *info, struct fb_cursor *cursor); -static int i810fb_init_pci(struct pci_dev *dev, - const struct pci_device_id *entry); -static void __exit i810fb_remove_pci(struct pci_dev *dev); -static int i810fb_resume(struct pci_dev *dev); -static int i810fb_suspend(struct pci_dev *dev, pm_message_t state); - -/* Chipset Specific Functions */ -static int i810fb_set_par (struct fb_info *info); -static int i810fb_getcolreg (u8 regno, u8 *red, u8 *green, u8 *blue, - u8 *transp, struct fb_info *info); -static int i810fb_setcolreg (unsigned regno, unsigned red, unsigned green, unsigned blue, - unsigned transp, struct fb_info *info); -static int i810fb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info); -static int i810fb_blank (int blank_mode, struct fb_info *info); - -/* Initialization */ -static void i810fb_release_resource (struct fb_info *info, struct i810fb_par *par); - -/* PCI */ -static const char * const i810_pci_list[] = { - "Intel(R) 810 Framebuffer Device" , - "Intel(R) 810-DC100 Framebuffer Device" , - "Intel(R) 810E Framebuffer Device" , - "Intel(R) 815 (Internal Graphics 100Mhz FSB) Framebuffer Device" , - "Intel(R) 815 (Internal Graphics only) Framebuffer Device" , - "Intel(R) 815 (Internal Graphics with AGP) Framebuffer Device" -}; - -static struct pci_device_id i810fb_pci_tbl[] = { - { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82810_IG1, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, - { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82810_IG3, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1 }, - { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82810E_IG, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2 }, - /* mvo: added i815 PCI-ID */ - { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82815_100, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3 }, - { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82815_NOAGP, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4 }, - { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82815_CGC, - PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5 }, - { 0 }, -}; - -static struct pci_driver i810fb_driver = { - .name = "i810fb", - .id_table = i810fb_pci_tbl, - .probe = i810fb_init_pci, - .remove = __exit_p(i810fb_remove_pci), - .suspend = i810fb_suspend, - .resume = i810fb_resume, -}; - -static char *mode_option = NULL; -static int vram = 4; -static int bpp = 8; -static bool mtrr; -static bool accel; -static int hsync1; -static int hsync2; -static int vsync1; -static int vsync2; -static int xres; -static int yres; -static int vyres; -static bool sync; -static bool extvga; -static bool dcolor; -static bool ddc3; - -/*------------------------------------------------------------*/ - -/************************************************************** - * Hardware Low Level Routines * - **************************************************************/ - -/** - * i810_screen_off - turns off/on display - * @mmio: address of register space - * @mode: on or off - * - * DESCRIPTION: - * Blanks/unblanks the display - */ -static void i810_screen_off(u8 __iomem *mmio, u8 mode) -{ - u32 count = WAIT_COUNT; - u8 val; - - i810_writeb(SR_INDEX, mmio, SR01); - val = i810_readb(SR_DATA, mmio); - val = (mode == OFF) ? val | SCR_OFF : - val & ~SCR_OFF; - - while((i810_readw(DISP_SL, mmio) & 0xFFF) && count--); - i810_writeb(SR_INDEX, mmio, SR01); - i810_writeb(SR_DATA, mmio, val); -} - -/** - * i810_dram_off - turns off/on dram refresh - * @mmio: address of register space - * @mode: on or off - * - * DESCRIPTION: - * Turns off DRAM refresh. Must be off for only 2 vsyncs - * before data becomes corrupt - */ -static void i810_dram_off(u8 __iomem *mmio, u8 mode) -{ - u8 val; - - val = i810_readb(DRAMCH, mmio); - val &= DRAM_OFF; - val = (mode == OFF) ? val : val | DRAM_ON; - i810_writeb(DRAMCH, mmio, val); -} - -/** - * i810_protect_regs - allows rw/ro mode of certain VGA registers - * @mmio: address of register space - * @mode: protect/unprotect - * - * DESCRIPTION: - * The IBM VGA standard allows protection of certain VGA registers. - * This will protect or unprotect them. - */ -static void i810_protect_regs(u8 __iomem *mmio, int mode) -{ - u8 reg; - - i810_writeb(CR_INDEX_CGA, mmio, CR11); - reg = i810_readb(CR_DATA_CGA, mmio); - reg = (mode == OFF) ? reg & ~0x80 : - reg | 0x80; - - i810_writeb(CR_INDEX_CGA, mmio, CR11); - i810_writeb(CR_DATA_CGA, mmio, reg); -} - -/** - * i810_load_pll - loads values for the hardware PLL clock - * @par: pointer to i810fb_par structure - * - * DESCRIPTION: - * Loads the P, M, and N registers. - */ -static void i810_load_pll(struct i810fb_par *par) -{ - u32 tmp1, tmp2; - u8 __iomem *mmio = par->mmio_start_virtual; - - tmp1 = par->regs.M | par->regs.N << 16; - tmp2 = i810_readl(DCLK_2D, mmio); - tmp2 &= ~MN_MASK; - i810_writel(DCLK_2D, mmio, tmp1 | tmp2); - - tmp1 = par->regs.P; - tmp2 = i810_readl(DCLK_0DS, mmio); - tmp2 &= ~(P_OR << 16); - i810_writel(DCLK_0DS, mmio, (tmp1 << 16) | tmp2); - - i810_writeb(MSR_WRITE, mmio, par->regs.msr | 0xC8 | 1); - -} - -/** - * i810_load_vga - load standard VGA registers - * @par: pointer to i810fb_par structure - * - * DESCRIPTION: - * Load values to VGA registers - */ -static void i810_load_vga(struct i810fb_par *par) -{ - u8 __iomem *mmio = par->mmio_start_virtual; - - /* interlace */ - i810_writeb(CR_INDEX_CGA, mmio, CR70); - i810_writeb(CR_DATA_CGA, mmio, par->interlace); - - i810_writeb(CR_INDEX_CGA, mmio, CR00); - i810_writeb(CR_DATA_CGA, mmio, par->regs.cr00); - i810_writeb(CR_INDEX_CGA, mmio, CR01); - i810_writeb(CR_DATA_CGA, mmio, par->regs.cr01); - i810_writeb(CR_INDEX_CGA, mmio, CR02); - i810_writeb(CR_DATA_CGA, mmio, par->regs.cr02); - i810_writeb(CR_INDEX_CGA, mmio, CR03); - i810_writeb(CR_DATA_CGA, mmio, par->regs.cr03); - i810_writeb(CR_INDEX_CGA, mmio, CR04); - i810_writeb(CR_DATA_CGA, mmio, par->regs.cr04); - i810_writeb(CR_INDEX_CGA, mmio, CR05); - i810_writeb(CR_DATA_CGA, mmio, par->regs.cr05); - i810_writeb(CR_INDEX_CGA, mmio, CR06); - i810_writeb(CR_DATA_CGA, mmio, par->regs.cr06); - i810_writeb(CR_INDEX_CGA, mmio, CR09); - i810_writeb(CR_DATA_CGA, mmio, par->regs.cr09); - i810_writeb(CR_INDEX_CGA, mmio, CR10); - i810_writeb(CR_DATA_CGA, mmio, par->regs.cr10); - i810_writeb(CR_INDEX_CGA, mmio, CR11); - i810_writeb(CR_DATA_CGA, mmio, par->regs.cr11); - i810_writeb(CR_INDEX_CGA, mmio, CR12); - i810_writeb(CR_DATA_CGA, mmio, par->regs.cr12); - i810_writeb(CR_INDEX_CGA, mmio, CR15); - i810_writeb(CR_DATA_CGA, mmio, par->regs.cr15); - i810_writeb(CR_INDEX_CGA, mmio, CR16); - i810_writeb(CR_DATA_CGA, mmio, par->regs.cr16); -} - -/** - * i810_load_vgax - load extended VGA registers - * @par: pointer to i810fb_par structure - * - * DESCRIPTION: - * Load values to extended VGA registers - */ -static void i810_load_vgax(struct i810fb_par *par) -{ - u8 __iomem *mmio = par->mmio_start_virtual; - - i810_writeb(CR_INDEX_CGA, mmio, CR30); - i810_writeb(CR_DATA_CGA, mmio, par->regs.cr30); - i810_writeb(CR_INDEX_CGA, mmio, CR31); - i810_writeb(CR_DATA_CGA, mmio, par->regs.cr31); - i810_writeb(CR_INDEX_CGA, mmio, CR32); - i810_writeb(CR_DATA_CGA, mmio, par->regs.cr32); - i810_writeb(CR_INDEX_CGA, mmio, CR33); - i810_writeb(CR_DATA_CGA, mmio, par->regs.cr33); - i810_writeb(CR_INDEX_CGA, mmio, CR35); - i810_writeb(CR_DATA_CGA, mmio, par->regs.cr35); - i810_writeb(CR_INDEX_CGA, mmio, CR39); - i810_writeb(CR_DATA_CGA, mmio, par->regs.cr39); -} - -/** - * i810_load_2d - load grahics registers - * @par: pointer to i810fb_par structure - * - * DESCRIPTION: - * Load values to graphics registers - */ -static void i810_load_2d(struct i810fb_par *par) -{ - u32 tmp; - u8 tmp8; - u8 __iomem *mmio = par->mmio_start_virtual; - - i810_writel(FW_BLC, mmio, par->watermark); - tmp = i810_readl(PIXCONF, mmio); - tmp |= 1 | 1 << 20; - i810_writel(PIXCONF, mmio, tmp); - - i810_writel(OVRACT, mmio, par->ovract); - - i810_writeb(GR_INDEX, mmio, GR10); - tmp8 = i810_readb(GR_DATA, mmio); - tmp8 |= 2; - i810_writeb(GR_INDEX, mmio, GR10); - i810_writeb(GR_DATA, mmio, tmp8); -} - -/** - * i810_hires - enables high resolution mode - * @mmio: address of register space - */ -static void i810_hires(u8 __iomem *mmio) -{ - u8 val; - - i810_writeb(CR_INDEX_CGA, mmio, CR80); - val = i810_readb(CR_DATA_CGA, mmio); - i810_writeb(CR_INDEX_CGA, mmio, CR80); - i810_writeb(CR_DATA_CGA, mmio, val | 1); - /* Stop LCD displays from flickering */ - i810_writel(MEM_MODE, mmio, i810_readl(MEM_MODE, mmio) | 4); -} - -/** - * i810_load_pitch - loads the characters per line of the display - * @par: pointer to i810fb_par structure - * - * DESCRIPTION: - * Loads the characters per line - */ -static void i810_load_pitch(struct i810fb_par *par) -{ - u32 tmp, pitch; - u8 val; - u8 __iomem *mmio = par->mmio_start_virtual; - - pitch = par->pitch >> 3; - i810_writeb(SR_INDEX, mmio, SR01); - val = i810_readb(SR_DATA, mmio); - val &= 0xE0; - val |= 1 | 1 << 2; - i810_writeb(SR_INDEX, mmio, SR01); - i810_writeb(SR_DATA, mmio, val); - - tmp = pitch & 0xFF; - i810_writeb(CR_INDEX_CGA, mmio, CR13); - i810_writeb(CR_DATA_CGA, mmio, (u8) tmp); - - tmp = pitch >> 8; - i810_writeb(CR_INDEX_CGA, mmio, CR41); - val = i810_readb(CR_DATA_CGA, mmio) & ~0x0F; - i810_writeb(CR_INDEX_CGA, mmio, CR41); - i810_writeb(CR_DATA_CGA, mmio, (u8) tmp | val); -} - -/** - * i810_load_color - loads the color depth of the display - * @par: pointer to i810fb_par structure - * - * DESCRIPTION: - * Loads the color depth of the display and the graphics engine - */ -static void i810_load_color(struct i810fb_par *par) -{ - u8 __iomem *mmio = par->mmio_start_virtual; - u32 reg1; - u16 reg2; - - reg1 = i810_readl(PIXCONF, mmio) & ~(0xF0000 | 1 << 27); - reg2 = i810_readw(BLTCNTL, mmio) & ~0x30; - - reg1 |= 0x8000 | par->pixconf; - reg2 |= par->bltcntl; - i810_writel(PIXCONF, mmio, reg1); - i810_writew(BLTCNTL, mmio, reg2); -} - -/** - * i810_load_regs - loads all registers for the mode - * @par: pointer to i810fb_par structure - * - * DESCRIPTION: - * Loads registers - */ -static void i810_load_regs(struct i810fb_par *par) -{ - u8 __iomem *mmio = par->mmio_start_virtual; - - i810_screen_off(mmio, OFF); - i810_protect_regs(mmio, OFF); - i810_dram_off(mmio, OFF); - i810_load_pll(par); - i810_load_vga(par); - i810_load_vgax(par); - i810_dram_off(mmio, ON); - i810_load_2d(par); - i810_hires(mmio); - i810_screen_off(mmio, ON); - i810_protect_regs(mmio, ON); - i810_load_color(par); - i810_load_pitch(par); -} - -static void i810_write_dac(u8 regno, u8 red, u8 green, u8 blue, - u8 __iomem *mmio) -{ - i810_writeb(CLUT_INDEX_WRITE, mmio, regno); - i810_writeb(CLUT_DATA, mmio, red); - i810_writeb(CLUT_DATA, mmio, green); - i810_writeb(CLUT_DATA, mmio, blue); -} - -static void i810_read_dac(u8 regno, u8 *red, u8 *green, u8 *blue, - u8 __iomem *mmio) -{ - i810_writeb(CLUT_INDEX_READ, mmio, regno); - *red = i810_readb(CLUT_DATA, mmio); - *green = i810_readb(CLUT_DATA, mmio); - *blue = i810_readb(CLUT_DATA, mmio); -} - -/************************************************************ - * VGA State Restore * - ************************************************************/ -static void i810_restore_pll(struct i810fb_par *par) -{ - u32 tmp1, tmp2; - u8 __iomem *mmio = par->mmio_start_virtual; - - tmp1 = par->hw_state.dclk_2d; - tmp2 = i810_readl(DCLK_2D, mmio); - tmp1 &= ~MN_MASK; - tmp2 &= MN_MASK; - i810_writel(DCLK_2D, mmio, tmp1 | tmp2); - - tmp1 = par->hw_state.dclk_1d; - tmp2 = i810_readl(DCLK_1D, mmio); - tmp1 &= ~MN_MASK; - tmp2 &= MN_MASK; - i810_writel(DCLK_1D, mmio, tmp1 | tmp2); - - i810_writel(DCLK_0DS, mmio, par->hw_state.dclk_0ds); -} - -static void i810_restore_dac(struct i810fb_par *par) -{ - u32 tmp1, tmp2; - u8 __iomem *mmio = par->mmio_start_virtual; - - tmp1 = par->hw_state.pixconf; - tmp2 = i810_readl(PIXCONF, mmio); - tmp1 &= DAC_BIT; - tmp2 &= ~DAC_BIT; - i810_writel(PIXCONF, mmio, tmp1 | tmp2); -} - -static void i810_restore_vgax(struct i810fb_par *par) -{ - u8 i, j; - u8 __iomem *mmio = par->mmio_start_virtual; - - for (i = 0; i < 4; i++) { - i810_writeb(CR_INDEX_CGA, mmio, CR30+i); - i810_writeb(CR_DATA_CGA, mmio, *(&(par->hw_state.cr30) + i)); - } - i810_writeb(CR_INDEX_CGA, mmio, CR35); - i810_writeb(CR_DATA_CGA, mmio, par->hw_state.cr35); - i810_writeb(CR_INDEX_CGA, mmio, CR39); - i810_writeb(CR_DATA_CGA, mmio, par->hw_state.cr39); - i810_writeb(CR_INDEX_CGA, mmio, CR41); - i810_writeb(CR_DATA_CGA, mmio, par->hw_state.cr39); - - /*restore interlace*/ - i810_writeb(CR_INDEX_CGA, mmio, CR70); - i = par->hw_state.cr70; - i &= INTERLACE_BIT; - j = i810_readb(CR_DATA_CGA, mmio); - i810_writeb(CR_INDEX_CGA, mmio, CR70); - i810_writeb(CR_DATA_CGA, mmio, j | i); - - i810_writeb(CR_INDEX_CGA, mmio, CR80); - i810_writeb(CR_DATA_CGA, mmio, par->hw_state.cr80); - i810_writeb(MSR_WRITE, mmio, par->hw_state.msr); - i810_writeb(SR_INDEX, mmio, SR01); - i = (par->hw_state.sr01) & ~0xE0 ; - j = i810_readb(SR_DATA, mmio) & 0xE0; - i810_writeb(SR_INDEX, mmio, SR01); - i810_writeb(SR_DATA, mmio, i | j); -} - -static void i810_restore_vga(struct i810fb_par *par) -{ - u8 i; - u8 __iomem *mmio = par->mmio_start_virtual; - - for (i = 0; i < 10; i++) { - i810_writeb(CR_INDEX_CGA, mmio, CR00 + i); - i810_writeb(CR_DATA_CGA, mmio, *((&par->hw_state.cr00) + i)); - } - for (i = 0; i < 8; i++) { - i810_writeb(CR_INDEX_CGA, mmio, CR10 + i); - i810_writeb(CR_DATA_CGA, mmio, *((&par->hw_state.cr10) + i)); - } -} - -static void i810_restore_addr_map(struct i810fb_par *par) -{ - u8 tmp; - u8 __iomem *mmio = par->mmio_start_virtual; - - i810_writeb(GR_INDEX, mmio, GR10); - tmp = i810_readb(GR_DATA, mmio); - tmp &= ADDR_MAP_MASK; - tmp |= par->hw_state.gr10; - i810_writeb(GR_INDEX, mmio, GR10); - i810_writeb(GR_DATA, mmio, tmp); -} - -static void i810_restore_2d(struct i810fb_par *par) -{ - u32 tmp_long; - u16 tmp_word; - u8 __iomem *mmio = par->mmio_start_virtual; - - tmp_word = i810_readw(BLTCNTL, mmio); - tmp_word &= ~(3 << 4); - tmp_word |= par->hw_state.bltcntl; - i810_writew(BLTCNTL, mmio, tmp_word); - - i810_dram_off(mmio, OFF); - i810_writel(PIXCONF, mmio, par->hw_state.pixconf); - i810_dram_off(mmio, ON); - - tmp_word = i810_readw(HWSTAM, mmio); - tmp_word &= 3 << 13; - tmp_word |= par->hw_state.hwstam; - i810_writew(HWSTAM, mmio, tmp_word); - - tmp_long = i810_readl(FW_BLC, mmio); - tmp_long &= FW_BLC_MASK; - tmp_long |= par->hw_state.fw_blc; - i810_writel(FW_BLC, mmio, tmp_long); - - i810_writel(HWS_PGA, mmio, par->hw_state.hws_pga); - i810_writew(IER, mmio, par->hw_state.ier); - i810_writew(IMR, mmio, par->hw_state.imr); - i810_writel(DPLYSTAS, mmio, par->hw_state.dplystas); -} - -static void i810_restore_vga_state(struct i810fb_par *par) -{ - u8 __iomem *mmio = par->mmio_start_virtual; - - i810_screen_off(mmio, OFF); - i810_protect_regs(mmio, OFF); - i810_dram_off(mmio, OFF); - i810_restore_pll(par); - i810_restore_dac(par); - i810_restore_vga(par); - i810_restore_vgax(par); - i810_restore_addr_map(par); - i810_dram_off(mmio, ON); - i810_restore_2d(par); - i810_screen_off(mmio, ON); - i810_protect_regs(mmio, ON); -} - -/*********************************************************************** - * VGA State Save * - ***********************************************************************/ - -static void i810_save_vgax(struct i810fb_par *par) -{ - u8 i; - u8 __iomem *mmio = par->mmio_start_virtual; - - for (i = 0; i < 4; i++) { - i810_writeb(CR_INDEX_CGA, mmio, CR30 + i); - *(&(par->hw_state.cr30) + i) = i810_readb(CR_DATA_CGA, mmio); - } - i810_writeb(CR_INDEX_CGA, mmio, CR35); - par->hw_state.cr35 = i810_readb(CR_DATA_CGA, mmio); - i810_writeb(CR_INDEX_CGA, mmio, CR39); - par->hw_state.cr39 = i810_readb(CR_DATA_CGA, mmio); - i810_writeb(CR_INDEX_CGA, mmio, CR41); - par->hw_state.cr41 = i810_readb(CR_DATA_CGA, mmio); - i810_writeb(CR_INDEX_CGA, mmio, CR70); - par->hw_state.cr70 = i810_readb(CR_DATA_CGA, mmio); - par->hw_state.msr = i810_readb(MSR_READ, mmio); - i810_writeb(CR_INDEX_CGA, mmio, CR80); - par->hw_state.cr80 = i810_readb(CR_DATA_CGA, mmio); - i810_writeb(SR_INDEX, mmio, SR01); - par->hw_state.sr01 = i810_readb(SR_DATA, mmio); -} - -static void i810_save_vga(struct i810fb_par *par) -{ - u8 i; - u8 __iomem *mmio = par->mmio_start_virtual; - - for (i = 0; i < 10; i++) { - i810_writeb(CR_INDEX_CGA, mmio, CR00 + i); - *((&par->hw_state.cr00) + i) = i810_readb(CR_DATA_CGA, mmio); - } - for (i = 0; i < 8; i++) { - i810_writeb(CR_INDEX_CGA, mmio, CR10 + i); - *((&par->hw_state.cr10) + i) = i810_readb(CR_DATA_CGA, mmio); - } -} - -static void i810_save_2d(struct i810fb_par *par) -{ - u8 __iomem *mmio = par->mmio_start_virtual; - - par->hw_state.dclk_2d = i810_readl(DCLK_2D, mmio); - par->hw_state.dclk_1d = i810_readl(DCLK_1D, mmio); - par->hw_state.dclk_0ds = i810_readl(DCLK_0DS, mmio); - par->hw_state.pixconf = i810_readl(PIXCONF, mmio); - par->hw_state.fw_blc = i810_readl(FW_BLC, mmio); - par->hw_state.bltcntl = i810_readw(BLTCNTL, mmio); - par->hw_state.hwstam = i810_readw(HWSTAM, mmio); - par->hw_state.hws_pga = i810_readl(HWS_PGA, mmio); - par->hw_state.ier = i810_readw(IER, mmio); - par->hw_state.imr = i810_readw(IMR, mmio); - par->hw_state.dplystas = i810_readl(DPLYSTAS, mmio); -} - -static void i810_save_vga_state(struct i810fb_par *par) -{ - i810_save_vga(par); - i810_save_vgax(par); - i810_save_2d(par); -} - -/************************************************************ - * Helpers * - ************************************************************/ -/** - * get_line_length - calculates buffer pitch in bytes - * @par: pointer to i810fb_par structure - * @xres_virtual: virtual resolution of the frame - * @bpp: bits per pixel - * - * DESCRIPTION: - * Calculates buffer pitch in bytes. - */ -static u32 get_line_length(struct i810fb_par *par, int xres_virtual, int bpp) -{ - u32 length; - - length = xres_virtual*bpp; - length = (length+31)&-32; - length >>= 3; - return length; -} - -/** - * i810_calc_dclk - calculates the P, M, and N values of a pixelclock value - * @freq: target pixelclock in picoseconds - * @m: where to write M register - * @n: where to write N register - * @p: where to write P register - * - * DESCRIPTION: - * Based on the formula Freq_actual = (4*M*Freq_ref)/(N^P) - * Repeatedly computes the Freq until the actual Freq is equal to - * the target Freq or until the loop count is zero. In the latter - * case, the actual frequency nearest the target will be used. - */ -static void i810_calc_dclk(u32 freq, u32 *m, u32 *n, u32 *p) -{ - u32 m_reg, n_reg, p_divisor, n_target_max; - u32 m_target, n_target, p_target, n_best, m_best, mod; - u32 f_out, target_freq, diff = 0, mod_min, diff_min; - - diff_min = mod_min = 0xFFFFFFFF; - n_best = m_best = m_target = f_out = 0; - - target_freq = freq; - n_target_max = 30; - - /* - * find P such that target freq is 16x reference freq (Hz). - */ - p_divisor = 1; - p_target = 0; - while(!((1000000 * p_divisor)/(16 * 24 * target_freq)) && - p_divisor <= 32) { - p_divisor <<= 1; - p_target++; - } - - n_reg = m_reg = n_target = 3; - while (diff_min && mod_min && (n_target < n_target_max)) { - f_out = (p_divisor * n_reg * 1000000)/(4 * 24 * m_reg); - mod = (p_divisor * n_reg * 1000000) % (4 * 24 * m_reg); - m_target = m_reg; - n_target = n_reg; - if (f_out <= target_freq) { - n_reg++; - diff = target_freq - f_out; - } else { - m_reg++; - diff = f_out - target_freq; - } - - if (diff_min > diff) { - diff_min = diff; - n_best = n_target; - m_best = m_target; - } - - if (!diff && mod_min > mod) { - mod_min = mod; - n_best = n_target; - m_best = m_target; - } - } - if (m) *m = (m_best - 2) & 0x3FF; - if (n) *n = (n_best - 2) & 0x3FF; - if (p) *p = (p_target << 4); -} - -/************************************************************* - * Hardware Cursor Routines * - *************************************************************/ - -/** - * i810_enable_cursor - show or hide the hardware cursor - * @mmio: address of register space - * @mode: show (1) or hide (0) - * - * Description: - * Shows or hides the hardware cursor - */ -static void i810_enable_cursor(u8 __iomem *mmio, int mode) -{ - u32 temp; - - temp = i810_readl(PIXCONF, mmio); - temp = (mode == ON) ? temp | CURSOR_ENABLE_MASK : - temp & ~CURSOR_ENABLE_MASK; - - i810_writel(PIXCONF, mmio, temp); -} - -static void i810_reset_cursor_image(struct i810fb_par *par) -{ - u8 __iomem *addr = par->cursor_heap.virtual; - int i, j; - - for (i = 64; i--; ) { - for (j = 0; j < 8; j++) { - i810_writeb(j, addr, 0xff); - i810_writeb(j+8, addr, 0x00); - } - addr +=16; - } -} - -static void i810_load_cursor_image(int width, int height, u8 *data, - struct i810fb_par *par) -{ - u8 __iomem *addr = par->cursor_heap.virtual; - int i, j, w = width/8; - int mod = width % 8, t_mask, d_mask; - - t_mask = 0xff >> mod; - d_mask = ~(0xff >> mod); - for (i = height; i--; ) { - for (j = 0; j < w; j++) { - i810_writeb(j+0, addr, 0x00); - i810_writeb(j+8, addr, *data++); - } - if (mod) { - i810_writeb(j+0, addr, t_mask); - i810_writeb(j+8, addr, *data++ & d_mask); - } - addr += 16; - } -} - -static void i810_load_cursor_colors(int fg, int bg, struct fb_info *info) -{ - struct i810fb_par *par = info->par; - u8 __iomem *mmio = par->mmio_start_virtual; - u8 red, green, blue, trans, temp; - - i810fb_getcolreg(bg, &red, &green, &blue, &trans, info); - - temp = i810_readb(PIXCONF1, mmio); - i810_writeb(PIXCONF1, mmio, temp | EXTENDED_PALETTE); - - i810_write_dac(4, red, green, blue, mmio); - - i810_writeb(PIXCONF1, mmio, temp); - - i810fb_getcolreg(fg, &red, &green, &blue, &trans, info); - temp = i810_readb(PIXCONF1, mmio); - i810_writeb(PIXCONF1, mmio, temp | EXTENDED_PALETTE); - - i810_write_dac(5, red, green, blue, mmio); - - i810_writeb(PIXCONF1, mmio, temp); -} - -/** - * i810_init_cursor - initializes the cursor - * @par: pointer to i810fb_par structure - * - * DESCRIPTION: - * Initializes the cursor registers - */ -static void i810_init_cursor(struct i810fb_par *par) -{ - u8 __iomem *mmio = par->mmio_start_virtual; - - i810_enable_cursor(mmio, OFF); - i810_writel(CURBASE, mmio, par->cursor_heap.physical); - i810_writew(CURCNTR, mmio, COORD_ACTIVE | CURSOR_MODE_64_XOR); -} - -/********************************************************************* - * Framebuffer hook helpers * - *********************************************************************/ -/** - * i810_round_off - Round off values to capability of hardware - * @var: pointer to fb_var_screeninfo structure - * - * DESCRIPTION: - * @var contains user-defined information for the mode to be set. - * This will try modify those values to ones nearest the - * capability of the hardware - */ -static void i810_round_off(struct fb_var_screeninfo *var) -{ - u32 xres, yres, vxres, vyres; - - /* - * Presently supports only these configurations - */ - - xres = var->xres; - yres = var->yres; - vxres = var->xres_virtual; - vyres = var->yres_virtual; - - var->bits_per_pixel += 7; - var->bits_per_pixel &= ~7; - - if (var->bits_per_pixel < 8) - var->bits_per_pixel = 8; - if (var->bits_per_pixel > 32) - var->bits_per_pixel = 32; - - round_off_xres(&xres); - if (xres < 40) - xres = 40; - if (xres > 2048) - xres = 2048; - xres = (xres + 7) & ~7; - - if (vxres < xres) - vxres = xres; - - round_off_yres(&xres, &yres); - if (yres < 1) - yres = 1; - if (yres >= 2048) - yres = 2048; - - if (vyres < yres) - vyres = yres; - - if (var->bits_per_pixel == 32) - var->accel_flags = 0; - - /* round of horizontal timings to nearest 8 pixels */ - var->left_margin = (var->left_margin + 4) & ~7; - var->right_margin = (var->right_margin + 4) & ~7; - var->hsync_len = (var->hsync_len + 4) & ~7; - - if (var->vmode & FB_VMODE_INTERLACED) { - if (!((yres + var->upper_margin + var->vsync_len + - var->lower_margin) & 1)) - var->upper_margin++; - } - - var->xres = xres; - var->yres = yres; - var->xres_virtual = vxres; - var->yres_virtual = vyres; -} - -/** - * set_color_bitfields - sets rgba fields - * @var: pointer to fb_var_screeninfo - * - * DESCRIPTION: - * The length, offset and ordering for each color field - * (red, green, blue) will be set as specified - * by the hardware - */ -static void set_color_bitfields(struct fb_var_screeninfo *var) -{ - switch (var->bits_per_pixel) { - case 8: - var->red.offset = 0; - var->red.length = 8; - var->green.offset = 0; - var->green.length = 8; - var->blue.offset = 0; - var->blue.length = 8; - var->transp.offset = 0; - var->transp.length = 0; - break; - case 16: - var->green.length = (var->green.length == 5) ? 5 : 6; - var->red.length = 5; - var->blue.length = 5; - var->transp.length = 6 - var->green.length; - var->blue.offset = 0; - var->green.offset = 5; - var->red.offset = 5 + var->green.length; - var->transp.offset = (5 + var->red.offset) & 15; - break; - case 24: /* RGB 888 */ - case 32: /* RGBA 8888 */ - var->red.offset = 16; - var->red.length = 8; - var->green.offset = 8; - var->green.length = 8; - var->blue.offset = 0; - var->blue.length = 8; - var->transp.length = var->bits_per_pixel - 24; - var->transp.offset = (var->transp.length) ? 24 : 0; - break; - } - var->red.msb_right = 0; - var->green.msb_right = 0; - var->blue.msb_right = 0; - var->transp.msb_right = 0; -} - -/** - * i810_check_params - check if contents in var are valid - * @var: pointer to fb_var_screeninfo - * @info: pointer to fb_info - * - * DESCRIPTION: - * This will check if the framebuffer size is sufficient - * for the current mode and if the user's monitor has the - * required specifications to display the current mode. - */ -static int i810_check_params(struct fb_var_screeninfo *var, - struct fb_info *info) -{ - struct i810fb_par *par = info->par; - int line_length, vidmem, mode_valid = 0, retval = 0; - u32 vyres = var->yres_virtual, vxres = var->xres_virtual; - - /* - * Memory limit - */ - line_length = get_line_length(par, vxres, var->bits_per_pixel); - vidmem = line_length*vyres; - - if (vidmem > par->fb.size) { - vyres = par->fb.size/line_length; - if (vyres < var->yres) { - vyres = info->var.yres; - vxres = par->fb.size/vyres; - vxres /= var->bits_per_pixel >> 3; - line_length = get_line_length(par, vxres, - var->bits_per_pixel); - vidmem = line_length * info->var.yres; - if (vxres < var->xres) { - printk("i810fb: required video memory, " - "%d bytes, for %dx%d-%d (virtual) " - "is out of range\n", - vidmem, vxres, vyres, - var->bits_per_pixel); - return -ENOMEM; - } - } - } - - var->xres_virtual = vxres; - var->yres_virtual = vyres; - - /* - * Monitor limit - */ - switch (var->bits_per_pixel) { - case 8: - info->monspecs.dclkmax = 234000000; - break; - case 16: - info->monspecs.dclkmax = 229000000; - break; - case 24: - case 32: - info->monspecs.dclkmax = 204000000; - break; - } - - info->monspecs.dclkmin = 15000000; - - if (!fb_validate_mode(var, info)) - mode_valid = 1; - -#ifdef CONFIG_FB_I810_I2C - if (!mode_valid && info->monspecs.gtf && - !fb_get_mode(FB_MAXTIMINGS, 0, var, info)) - mode_valid = 1; - - if (!mode_valid && info->monspecs.modedb_len) { - const struct fb_videomode *mode; - - mode = fb_find_best_mode(var, &info->modelist); - if (mode) { - fb_videomode_to_var(var, mode); - mode_valid = 1; - } - } -#endif - if (!mode_valid && info->monspecs.modedb_len == 0) { - if (fb_get_mode(FB_MAXTIMINGS, 0, var, info)) { - int default_sync = (info->monspecs.hfmin-HFMIN) - |(info->monspecs.hfmax-HFMAX) - |(info->monspecs.vfmin-VFMIN) - |(info->monspecs.vfmax-VFMAX); - printk("i810fb: invalid video mode%s\n", - default_sync ? "" : ". Specifying " - "vsyncN/hsyncN parameters may help"); - retval = -EINVAL; - } - } - - return retval; -} - -/** - * encode_fix - fill up fb_fix_screeninfo structure - * @fix: pointer to fb_fix_screeninfo - * @info: pointer to fb_info - * - * DESCRIPTION: - * This will set up parameters that are unmodifiable by the user. - */ -static int encode_fix(struct fb_fix_screeninfo *fix, struct fb_info *info) -{ - struct i810fb_par *par = info->par; - - memset(fix, 0, sizeof(struct fb_fix_screeninfo)); - - strcpy(fix->id, "I810"); - mutex_lock(&info->mm_lock); - fix->smem_start = par->fb.physical; - fix->smem_len = par->fb.size; - mutex_unlock(&info->mm_lock); - fix->type = FB_TYPE_PACKED_PIXELS; - fix->type_aux = 0; - fix->xpanstep = 8; - fix->ypanstep = 1; - - switch (info->var.bits_per_pixel) { - case 8: - fix->visual = FB_VISUAL_PSEUDOCOLOR; - break; - case 16: - case 24: - case 32: - if (info->var.nonstd) - fix->visual = FB_VISUAL_DIRECTCOLOR; - else - fix->visual = FB_VISUAL_TRUECOLOR; - break; - default: - return -EINVAL; - } - fix->ywrapstep = 0; - fix->line_length = par->pitch; - fix->mmio_start = par->mmio_start_phys; - fix->mmio_len = MMIO_SIZE; - fix->accel = FB_ACCEL_I810; - - return 0; -} - -/** - * decode_var - modify par according to contents of var - * @var: pointer to fb_var_screeninfo - * @par: pointer to i810fb_par - * - * DESCRIPTION: - * Based on the contents of @var, @par will be dynamically filled up. - * @par contains all information necessary to modify the hardware. -*/ -static void decode_var(const struct fb_var_screeninfo *var, - struct i810fb_par *par) -{ - u32 xres, yres, vxres, vyres; - - xres = var->xres; - yres = var->yres; - vxres = var->xres_virtual; - vyres = var->yres_virtual; - - switch (var->bits_per_pixel) { - case 8: - par->pixconf = PIXCONF8; - par->bltcntl = 0; - par->depth = 1; - par->blit_bpp = BPP8; - break; - case 16: - if (var->green.length == 5) - par->pixconf = PIXCONF15; - else - par->pixconf = PIXCONF16; - par->bltcntl = 16; - par->depth = 2; - par->blit_bpp = BPP16; - break; - case 24: - par->pixconf = PIXCONF24; - par->bltcntl = 32; - par->depth = 3; - par->blit_bpp = BPP24; - break; - case 32: - par->pixconf = PIXCONF32; - par->bltcntl = 0; - par->depth = 4; - par->blit_bpp = 3 << 24; - break; - } - if (var->nonstd && var->bits_per_pixel != 8) - par->pixconf |= 1 << 27; - - i810_calc_dclk(var->pixclock, &par->regs.M, - &par->regs.N, &par->regs.P); - i810fb_encode_registers(var, par, xres, yres); - - par->watermark = i810_get_watermark(var, par); - par->pitch = get_line_length(par, vxres, var->bits_per_pixel); -} - -/** - * i810fb_getcolreg - gets red, green and blue values of the hardware DAC - * @regno: DAC index - * @red: red - * @green: green - * @blue: blue - * @transp: transparency (alpha) - * @info: pointer to fb_info - * - * DESCRIPTION: - * Gets the red, green and blue values of the hardware DAC as pointed by @regno - * and writes them to @red, @green and @blue respectively - */ -static int i810fb_getcolreg(u8 regno, u8 *red, u8 *green, u8 *blue, - u8 *transp, struct fb_info *info) -{ - struct i810fb_par *par = info->par; - u8 __iomem *mmio = par->mmio_start_virtual; - u8 temp; - - if (info->fix.visual == FB_VISUAL_DIRECTCOLOR) { - if ((info->var.green.length == 5 && regno > 31) || - (info->var.green.length == 6 && regno > 63)) - return 1; - } - - temp = i810_readb(PIXCONF1, mmio); - i810_writeb(PIXCONF1, mmio, temp & ~EXTENDED_PALETTE); - - if (info->fix.visual == FB_VISUAL_DIRECTCOLOR && - info->var.green.length == 5) - i810_read_dac(regno * 8, red, green, blue, mmio); - - else if (info->fix.visual == FB_VISUAL_DIRECTCOLOR && - info->var.green.length == 6) { - u8 tmp; - - i810_read_dac(regno * 8, red, &tmp, blue, mmio); - i810_read_dac(regno * 4, &tmp, green, &tmp, mmio); - } - else - i810_read_dac(regno, red, green, blue, mmio); - - *transp = 0; - i810_writeb(PIXCONF1, mmio, temp); - - return 0; -} - -/****************************************************************** - * Framebuffer device-specific hooks * - ******************************************************************/ - -static int i810fb_open(struct fb_info *info, int user) -{ - struct i810fb_par *par = info->par; - - mutex_lock(&par->open_lock); - if (par->use_count == 0) { - memset(&par->state, 0, sizeof(struct vgastate)); - par->state.flags = VGA_SAVE_CMAP; - par->state.vgabase = par->mmio_start_virtual; - save_vga(&par->state); - - i810_save_vga_state(par); - } - - par->use_count++; - mutex_unlock(&par->open_lock); - - return 0; -} - -static int i810fb_release(struct fb_info *info, int user) -{ - struct i810fb_par *par = info->par; - - mutex_lock(&par->open_lock); - if (par->use_count == 0) { - mutex_unlock(&par->open_lock); - return -EINVAL; - } - - if (par->use_count == 1) { - i810_restore_vga_state(par); - restore_vga(&par->state); - } - - par->use_count--; - mutex_unlock(&par->open_lock); - - return 0; -} - - -static int i810fb_setcolreg(unsigned regno, unsigned red, unsigned green, - unsigned blue, unsigned transp, - struct fb_info *info) -{ - struct i810fb_par *par = info->par; - u8 __iomem *mmio = par->mmio_start_virtual; - u8 temp; - int i; - - if (regno > 255) return 1; - - if (info->fix.visual == FB_VISUAL_DIRECTCOLOR) { - if ((info->var.green.length == 5 && regno > 31) || - (info->var.green.length == 6 && regno > 63)) - return 1; - } - - if (info->var.grayscale) - red = green = blue = (19595 * red + 38470 * green + - 7471 * blue) >> 16; - - temp = i810_readb(PIXCONF1, mmio); - i810_writeb(PIXCONF1, mmio, temp & ~EXTENDED_PALETTE); - - if (info->fix.visual == FB_VISUAL_DIRECTCOLOR && - info->var.green.length == 5) { - for (i = 0; i < 8; i++) - i810_write_dac((u8) (regno * 8) + i, (u8) red, - (u8) green, (u8) blue, mmio); - } else if (info->fix.visual == FB_VISUAL_DIRECTCOLOR && - info->var.green.length == 6) { - u8 r, g, b; - - if (regno < 32) { - for (i = 0; i < 8; i++) - i810_write_dac((u8) (regno * 8) + i, - (u8) red, (u8) green, - (u8) blue, mmio); - } - i810_read_dac((u8) (regno*4), &r, &g, &b, mmio); - for (i = 0; i < 4; i++) - i810_write_dac((u8) (regno*4) + i, r, (u8) green, - b, mmio); - } else if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR) { - i810_write_dac((u8) regno, (u8) red, (u8) green, - (u8) blue, mmio); - } - - i810_writeb(PIXCONF1, mmio, temp); - - if (regno < 16) { - switch (info->var.bits_per_pixel) { - case 16: - if (info->fix.visual == FB_VISUAL_DIRECTCOLOR) { - if (info->var.green.length == 5) - ((u32 *)info->pseudo_palette)[regno] = - (regno << 10) | (regno << 5) | - regno; - else - ((u32 *)info->pseudo_palette)[regno] = - (regno << 11) | (regno << 5) | - regno; - } else { - if (info->var.green.length == 5) { - /* RGB 555 */ - ((u32 *)info->pseudo_palette)[regno] = - ((red & 0xf800) >> 1) | - ((green & 0xf800) >> 6) | - ((blue & 0xf800) >> 11); - } else { - /* RGB 565 */ - ((u32 *)info->pseudo_palette)[regno] = - (red & 0xf800) | - ((green & 0xf800) >> 5) | - ((blue & 0xf800) >> 11); - } - } - break; - case 24: /* RGB 888 */ - case 32: /* RGBA 8888 */ - if (info->fix.visual == FB_VISUAL_DIRECTCOLOR) - ((u32 *)info->pseudo_palette)[regno] = - (regno << 16) | (regno << 8) | - regno; - else - ((u32 *)info->pseudo_palette)[regno] = - ((red & 0xff00) << 8) | - (green & 0xff00) | - ((blue & 0xff00) >> 8); - break; - } - } - return 0; -} - -static int i810fb_pan_display(struct fb_var_screeninfo *var, - struct fb_info *info) -{ - struct i810fb_par *par = info->par; - u32 total; - - total = var->xoffset * par->depth + - var->yoffset * info->fix.line_length; - i810fb_load_front(total, info); - - return 0; -} - -static int i810fb_blank (int blank_mode, struct fb_info *info) -{ - struct i810fb_par *par = info->par; - u8 __iomem *mmio = par->mmio_start_virtual; - int mode = 0, pwr, scr_off = 0; - - pwr = i810_readl(PWR_CLKC, mmio); - - switch (blank_mode) { - case FB_BLANK_UNBLANK: - mode = POWERON; - pwr |= 1; - scr_off = ON; - break; - case FB_BLANK_NORMAL: - mode = POWERON; - pwr |= 1; - scr_off = OFF; - break; - case FB_BLANK_VSYNC_SUSPEND: - mode = STANDBY; - pwr |= 1; - scr_off = OFF; - break; - case FB_BLANK_HSYNC_SUSPEND: - mode = SUSPEND; - pwr |= 1; - scr_off = OFF; - break; - case FB_BLANK_POWERDOWN: - mode = POWERDOWN; - pwr &= ~1; - scr_off = OFF; - break; - default: - return -EINVAL; - } - - i810_screen_off(mmio, scr_off); - i810_writel(HVSYNC, mmio, mode); - i810_writel(PWR_CLKC, mmio, pwr); - - return 0; -} - -static int i810fb_set_par(struct fb_info *info) -{ - struct i810fb_par *par = info->par; - - decode_var(&info->var, par); - i810_load_regs(par); - i810_init_cursor(par); - encode_fix(&info->fix, info); - - if (info->var.accel_flags && !(par->dev_flags & LOCKUP)) { - info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN | - FBINFO_HWACCEL_COPYAREA | FBINFO_HWACCEL_FILLRECT | - FBINFO_HWACCEL_IMAGEBLIT; - info->pixmap.scan_align = 2; - } else { - info->pixmap.scan_align = 1; - info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN; - } - return 0; -} - -static int i810fb_check_var(struct fb_var_screeninfo *var, - struct fb_info *info) -{ - int err; - - if (IS_DVT) { - var->vmode &= ~FB_VMODE_MASK; - var->vmode |= FB_VMODE_NONINTERLACED; - } - if (var->vmode & FB_VMODE_DOUBLE) { - var->vmode &= ~FB_VMODE_MASK; - var->vmode |= FB_VMODE_NONINTERLACED; - } - - i810_round_off(var); - if ((err = i810_check_params(var, info))) - return err; - - i810fb_fill_var_timings(var); - set_color_bitfields(var); - return 0; -} - -static int i810fb_cursor(struct fb_info *info, struct fb_cursor *cursor) -{ - struct i810fb_par *par = info->par; - u8 __iomem *mmio = par->mmio_start_virtual; - - if (par->dev_flags & LOCKUP) - return -ENXIO; - - if (cursor->image.width > 64 || cursor->image.height > 64) - return -ENXIO; - - if ((i810_readl(CURBASE, mmio) & 0xf) != par->cursor_heap.physical) { - i810_init_cursor(par); - cursor->set |= FB_CUR_SETALL; - } - - i810_enable_cursor(mmio, OFF); - - if (cursor->set & FB_CUR_SETPOS) { - u32 tmp; - - tmp = (cursor->image.dx - info->var.xoffset) & 0xffff; - tmp |= (cursor->image.dy - info->var.yoffset) << 16; - i810_writel(CURPOS, mmio, tmp); - } - - if (cursor->set & FB_CUR_SETSIZE) - i810_reset_cursor_image(par); - - if (cursor->set & FB_CUR_SETCMAP) - i810_load_cursor_colors(cursor->image.fg_color, - cursor->image.bg_color, - info); - - if (cursor->set & (FB_CUR_SETSHAPE | FB_CUR_SETIMAGE)) { - int size = ((cursor->image.width + 7) >> 3) * - cursor->image.height; - int i; - u8 *data = kmalloc(64 * 8, GFP_ATOMIC); - - if (data == NULL) - return -ENOMEM; - - switch (cursor->rop) { - case ROP_XOR: - for (i = 0; i < size; i++) - data[i] = cursor->image.data[i] ^ cursor->mask[i]; - break; - case ROP_COPY: - default: - for (i = 0; i < size; i++) - data[i] = cursor->image.data[i] & cursor->mask[i]; - break; - } - - i810_load_cursor_image(cursor->image.width, - cursor->image.height, data, - par); - kfree(data); - } - - if (cursor->enable) - i810_enable_cursor(mmio, ON); - - return 0; -} - -static struct fb_ops i810fb_ops = { - .owner = THIS_MODULE, - .fb_open = i810fb_open, - .fb_release = i810fb_release, - .fb_check_var = i810fb_check_var, - .fb_set_par = i810fb_set_par, - .fb_setcolreg = i810fb_setcolreg, - .fb_blank = i810fb_blank, - .fb_pan_display = i810fb_pan_display, - .fb_fillrect = i810fb_fillrect, - .fb_copyarea = i810fb_copyarea, - .fb_imageblit = i810fb_imageblit, - .fb_cursor = i810fb_cursor, - .fb_sync = i810fb_sync, -}; - -/*********************************************************************** - * Power Management * - ***********************************************************************/ -static int i810fb_suspend(struct pci_dev *dev, pm_message_t mesg) -{ - struct fb_info *info = pci_get_drvdata(dev); - struct i810fb_par *par = info->par; - - par->cur_state = mesg.event; - - switch (mesg.event) { - case PM_EVENT_FREEZE: - case PM_EVENT_PRETHAW: - dev->dev.power.power_state = mesg; - return 0; - } - - console_lock(); - fb_set_suspend(info, 1); - - if (info->fbops->fb_sync) - info->fbops->fb_sync(info); - - i810fb_blank(FB_BLANK_POWERDOWN, info); - agp_unbind_memory(par->i810_gtt.i810_fb_memory); - agp_unbind_memory(par->i810_gtt.i810_cursor_memory); - - pci_save_state(dev); - pci_disable_device(dev); - pci_set_power_state(dev, pci_choose_state(dev, mesg)); - console_unlock(); - - return 0; -} - -static int i810fb_resume(struct pci_dev *dev) -{ - struct fb_info *info = pci_get_drvdata(dev); - struct i810fb_par *par = info->par; - int cur_state = par->cur_state; - - par->cur_state = PM_EVENT_ON; - - if (cur_state == PM_EVENT_FREEZE) { - pci_set_power_state(dev, PCI_D0); - return 0; - } - - console_lock(); - pci_set_power_state(dev, PCI_D0); - pci_restore_state(dev); - - if (pci_enable_device(dev)) - goto fail; - - pci_set_master(dev); - agp_bind_memory(par->i810_gtt.i810_fb_memory, - par->fb.offset); - agp_bind_memory(par->i810_gtt.i810_cursor_memory, - par->cursor_heap.offset); - i810fb_set_par(info); - fb_set_suspend (info, 0); - info->fbops->fb_blank(VESA_NO_BLANKING, info); -fail: - console_unlock(); - return 0; -} -/*********************************************************************** - * AGP resource allocation * - ***********************************************************************/ - -static void i810_fix_pointers(struct i810fb_par *par) -{ - par->fb.physical = par->aperture.physical+(par->fb.offset << 12); - par->fb.virtual = par->aperture.virtual+(par->fb.offset << 12); - par->iring.physical = par->aperture.physical + - (par->iring.offset << 12); - par->iring.virtual = par->aperture.virtual + - (par->iring.offset << 12); - par->cursor_heap.virtual = par->aperture.virtual+ - (par->cursor_heap.offset << 12); -} - -static void i810_fix_offsets(struct i810fb_par *par) -{ - if (vram + 1 > par->aperture.size >> 20) - vram = (par->aperture.size >> 20) - 1; - if (v_offset_default > (par->aperture.size >> 20)) - v_offset_default = (par->aperture.size >> 20); - if (vram + v_offset_default + 1 > par->aperture.size >> 20) - v_offset_default = (par->aperture.size >> 20) - (vram + 1); - - par->fb.size = vram << 20; - par->fb.offset = v_offset_default << 20; - par->fb.offset >>= 12; - - par->iring.offset = par->fb.offset + (par->fb.size >> 12); - par->iring.size = RINGBUFFER_SIZE; - - par->cursor_heap.offset = par->iring.offset + (RINGBUFFER_SIZE >> 12); - par->cursor_heap.size = 4096; -} - -static int i810_alloc_agp_mem(struct fb_info *info) -{ - struct i810fb_par *par = info->par; - int size; - struct agp_bridge_data *bridge; - - i810_fix_offsets(par); - size = par->fb.size + par->iring.size; - - if (!(bridge = agp_backend_acquire(par->dev))) { - printk("i810fb_alloc_fbmem: cannot acquire agpgart\n"); - return -ENODEV; - } - if (!(par->i810_gtt.i810_fb_memory = - agp_allocate_memory(bridge, size >> 12, AGP_NORMAL_MEMORY))) { - printk("i810fb_alloc_fbmem: can't allocate framebuffer " - "memory\n"); - agp_backend_release(bridge); - return -ENOMEM; - } - if (agp_bind_memory(par->i810_gtt.i810_fb_memory, - par->fb.offset)) { - printk("i810fb_alloc_fbmem: can't bind framebuffer memory\n"); - agp_backend_release(bridge); - return -EBUSY; - } - - if (!(par->i810_gtt.i810_cursor_memory = - agp_allocate_memory(bridge, par->cursor_heap.size >> 12, - AGP_PHYSICAL_MEMORY))) { - printk("i810fb_alloc_cursormem: can't allocate" - "cursor memory\n"); - agp_backend_release(bridge); - return -ENOMEM; - } - if (agp_bind_memory(par->i810_gtt.i810_cursor_memory, - par->cursor_heap.offset)) { - printk("i810fb_alloc_cursormem: cannot bind cursor memory\n"); - agp_backend_release(bridge); - return -EBUSY; - } - - par->cursor_heap.physical = par->i810_gtt.i810_cursor_memory->physical; - - i810_fix_pointers(par); - - agp_backend_release(bridge); - - return 0; -} - -/*************************************************************** - * Initialization * - ***************************************************************/ - -/** - * i810_init_monspecs - * @info: pointer to device specific info structure - * - * DESCRIPTION: - * Sets the user monitor's horizontal and vertical - * frequency limits - */ -static void i810_init_monspecs(struct fb_info *info) -{ - if (!hsync1) - hsync1 = HFMIN; - if (!hsync2) - hsync2 = HFMAX; - if (!info->monspecs.hfmax) - info->monspecs.hfmax = hsync2; - if (!info->monspecs.hfmin) - info->monspecs.hfmin = hsync1; - if (hsync2 < hsync1) - info->monspecs.hfmin = hsync2; - - if (!vsync1) - vsync1 = VFMIN; - if (!vsync2) - vsync2 = VFMAX; - if (IS_DVT && vsync1 < 60) - vsync1 = 60; - if (!info->monspecs.vfmax) - info->monspecs.vfmax = vsync2; - if (!info->monspecs.vfmin) - info->monspecs.vfmin = vsync1; - if (vsync2 < vsync1) - info->monspecs.vfmin = vsync2; -} - -/** - * i810_init_defaults - initializes default values to use - * @par: pointer to i810fb_par structure - * @info: pointer to current fb_info structure - */ -static void i810_init_defaults(struct i810fb_par *par, struct fb_info *info) -{ - mutex_init(&par->open_lock); - - if (voffset) - v_offset_default = voffset; - else if (par->aperture.size > 32 * 1024 * 1024) - v_offset_default = 16; - else - v_offset_default = 8; - - if (!vram) - vram = 1; - - if (accel) - par->dev_flags |= HAS_ACCELERATION; - - if (sync) - par->dev_flags |= ALWAYS_SYNC; - - par->ddc_num = (ddc3 ? 3 : 2); - - if (bpp < 8) - bpp = 8; - - par->i810fb_ops = i810fb_ops; - - if (xres) - info->var.xres = xres; - else - info->var.xres = 640; - - if (yres) - info->var.yres = yres; - else - info->var.yres = 480; - - if (!vyres) - vyres = (vram << 20)/(info->var.xres*bpp >> 3); - - info->var.yres_virtual = vyres; - info->var.bits_per_pixel = bpp; - - if (dcolor) - info->var.nonstd = 1; - - if (par->dev_flags & HAS_ACCELERATION) - info->var.accel_flags = 1; - - i810_init_monspecs(info); -} - -/** - * i810_init_device - initialize device - * @par: pointer to i810fb_par structure - */ -static void i810_init_device(struct i810fb_par *par) -{ - u8 reg; - u8 __iomem *mmio = par->mmio_start_virtual; - - if (mtrr) set_mtrr(par); - - i810_init_cursor(par); - - /* mvo: enable external vga-connector (for laptops) */ - if (extvga) { - i810_writel(HVSYNC, mmio, 0); - i810_writel(PWR_CLKC, mmio, 3); - } - - pci_read_config_byte(par->dev, 0x50, ®); - reg &= FREQ_MASK; - par->mem_freq = (reg) ? 133 : 100; - -} - -static int i810_allocate_pci_resource(struct i810fb_par *par, - const struct pci_device_id *entry) -{ - int err; - - if ((err = pci_enable_device(par->dev))) { - printk("i810fb_init: cannot enable device\n"); - return err; - } - par->res_flags |= PCI_DEVICE_ENABLED; - - if (pci_resource_len(par->dev, 0) > 512 * 1024) { - par->aperture.physical = pci_resource_start(par->dev, 0); - par->aperture.size = pci_resource_len(par->dev, 0); - par->mmio_start_phys = pci_resource_start(par->dev, 1); - } else { - par->aperture.physical = pci_resource_start(par->dev, 1); - par->aperture.size = pci_resource_len(par->dev, 1); - par->mmio_start_phys = pci_resource_start(par->dev, 0); - } - if (!par->aperture.size) { - printk("i810fb_init: device is disabled\n"); - return -ENOMEM; - } - - if (!request_mem_region(par->aperture.physical, - par->aperture.size, - i810_pci_list[entry->driver_data])) { - printk("i810fb_init: cannot request framebuffer region\n"); - return -ENODEV; - } - par->res_flags |= FRAMEBUFFER_REQ; - - par->aperture.virtual = ioremap_nocache(par->aperture.physical, - par->aperture.size); - if (!par->aperture.virtual) { - printk("i810fb_init: cannot remap framebuffer region\n"); - return -ENODEV; - } - - if (!request_mem_region(par->mmio_start_phys, - MMIO_SIZE, - i810_pci_list[entry->driver_data])) { - printk("i810fb_init: cannot request mmio region\n"); - return -ENODEV; - } - par->res_flags |= MMIO_REQ; - - par->mmio_start_virtual = ioremap_nocache(par->mmio_start_phys, - MMIO_SIZE); - if (!par->mmio_start_virtual) { - printk("i810fb_init: cannot remap mmio region\n"); - return -ENODEV; - } - - return 0; -} - -static void i810fb_find_init_mode(struct fb_info *info) -{ - struct fb_videomode mode; - struct fb_var_screeninfo var; - struct fb_monspecs *specs = &info->monspecs; - int found = 0; -#ifdef CONFIG_FB_I810_I2C - int i; - int err = 1; - struct i810fb_par *par = info->par; -#endif - - INIT_LIST_HEAD(&info->modelist); - memset(&mode, 0, sizeof(struct fb_videomode)); - var = info->var; -#ifdef CONFIG_FB_I810_I2C - i810_create_i2c_busses(par); - - for (i = 0; i < par->ddc_num + 1; i++) { - err = i810_probe_i2c_connector(info, &par->edid, i); - if (!err) - break; - } - - if (!err) - printk("i810fb_init_pci: DDC probe successful\n"); - - fb_edid_to_monspecs(par->edid, specs); - - if (specs->modedb == NULL) - printk("i810fb_init_pci: Unable to get Mode Database\n"); - - fb_videomode_to_modelist(specs->modedb, specs->modedb_len, - &info->modelist); - if (specs->modedb != NULL) { - const struct fb_videomode *m; - - if (xres && yres) { - if ((m = fb_find_best_mode(&var, &info->modelist))) { - mode = *m; - found = 1; - } - } - - if (!found) { - m = fb_find_best_display(&info->monspecs, &info->modelist); - mode = *m; - found = 1; - } - - fb_videomode_to_var(&var, &mode); - } -#endif - if (mode_option) - fb_find_mode(&var, info, mode_option, specs->modedb, - specs->modedb_len, (found) ? &mode : NULL, - info->var.bits_per_pixel); - - info->var = var; - fb_destroy_modedb(specs->modedb); - specs->modedb = NULL; -} - -#ifndef MODULE -static int i810fb_setup(char *options) -{ - char *this_opt, *suffix = NULL; - - if (!options || !*options) - return 0; - - while ((this_opt = strsep(&options, ",")) != NULL) { - if (!strncmp(this_opt, "mtrr", 4)) - mtrr = 1; - else if (!strncmp(this_opt, "accel", 5)) - accel = 1; - else if (!strncmp(this_opt, "extvga", 6)) - extvga = 1; - else if (!strncmp(this_opt, "sync", 4)) - sync = 1; - else if (!strncmp(this_opt, "vram:", 5)) - vram = (simple_strtoul(this_opt+5, NULL, 0)); - else if (!strncmp(this_opt, "voffset:", 8)) - voffset = (simple_strtoul(this_opt+8, NULL, 0)); - else if (!strncmp(this_opt, "xres:", 5)) - xres = simple_strtoul(this_opt+5, NULL, 0); - else if (!strncmp(this_opt, "yres:", 5)) - yres = simple_strtoul(this_opt+5, NULL, 0); - else if (!strncmp(this_opt, "vyres:", 6)) - vyres = simple_strtoul(this_opt+6, NULL, 0); - else if (!strncmp(this_opt, "bpp:", 4)) - bpp = simple_strtoul(this_opt+4, NULL, 0); - else if (!strncmp(this_opt, "hsync1:", 7)) { - hsync1 = simple_strtoul(this_opt+7, &suffix, 0); - if (strncmp(suffix, "H", 1)) - hsync1 *= 1000; - } else if (!strncmp(this_opt, "hsync2:", 7)) { - hsync2 = simple_strtoul(this_opt+7, &suffix, 0); - if (strncmp(suffix, "H", 1)) - hsync2 *= 1000; - } else if (!strncmp(this_opt, "vsync1:", 7)) - vsync1 = simple_strtoul(this_opt+7, NULL, 0); - else if (!strncmp(this_opt, "vsync2:", 7)) - vsync2 = simple_strtoul(this_opt+7, NULL, 0); - else if (!strncmp(this_opt, "dcolor", 6)) - dcolor = 1; - else if (!strncmp(this_opt, "ddc3", 4)) - ddc3 = true; - else - mode_option = this_opt; - } - return 0; -} -#endif - -static int i810fb_init_pci(struct pci_dev *dev, - const struct pci_device_id *entry) -{ - struct fb_info *info; - struct i810fb_par *par = NULL; - struct fb_videomode mode; - int err = -1, vfreq, hfreq, pixclock; - - info = framebuffer_alloc(sizeof(struct i810fb_par), &dev->dev); - if (!info) - return -ENOMEM; - - par = info->par; - par->dev = dev; - - if (!(info->pixmap.addr = kzalloc(8*1024, GFP_KERNEL))) { - i810fb_release_resource(info, par); - return -ENOMEM; - } - info->pixmap.size = 8*1024; - info->pixmap.buf_align = 8; - info->pixmap.access_align = 32; - info->pixmap.flags = FB_PIXMAP_SYSTEM; - - if ((err = i810_allocate_pci_resource(par, entry))) { - i810fb_release_resource(info, par); - return err; - } - - i810_init_defaults(par, info); - - if ((err = i810_alloc_agp_mem(info))) { - i810fb_release_resource(info, par); - return err; - } - - i810_init_device(par); - - info->screen_base = par->fb.virtual; - info->fbops = &par->i810fb_ops; - info->pseudo_palette = par->pseudo_palette; - fb_alloc_cmap(&info->cmap, 256, 0); - i810fb_find_init_mode(info); - - if ((err = info->fbops->fb_check_var(&info->var, info))) { - i810fb_release_resource(info, par); - return err; - } - - fb_var_to_videomode(&mode, &info->var); - fb_add_videomode(&mode, &info->modelist); - - i810fb_init_ringbuffer(info); - err = register_framebuffer(info); - - if (err < 0) { - i810fb_release_resource(info, par); - printk("i810fb_init: cannot register framebuffer device\n"); - return err; - } - - pci_set_drvdata(dev, info); - pixclock = 1000000000/(info->var.pixclock); - pixclock *= 1000; - hfreq = pixclock/(info->var.xres + info->var.left_margin + - info->var.hsync_len + info->var.right_margin); - vfreq = hfreq/(info->var.yres + info->var.upper_margin + - info->var.vsync_len + info->var.lower_margin); - - printk("I810FB: fb%d : %s v%d.%d.%d%s\n" - "I810FB: Video RAM : %dK\n" - "I810FB: Monitor : H: %d-%d KHz V: %d-%d Hz\n" - "I810FB: Mode : %dx%d-%dbpp@%dHz\n", - info->node, - i810_pci_list[entry->driver_data], - VERSION_MAJOR, VERSION_MINOR, VERSION_TEENIE, BRANCH_VERSION, - (int) par->fb.size>>10, info->monspecs.hfmin/1000, - info->monspecs.hfmax/1000, info->monspecs.vfmin, - info->monspecs.vfmax, info->var.xres, - info->var.yres, info->var.bits_per_pixel, vfreq); - return 0; -} - -/*************************************************************** - * De-initialization * - ***************************************************************/ - -static void i810fb_release_resource(struct fb_info *info, - struct i810fb_par *par) -{ - struct gtt_data *gtt = &par->i810_gtt; - unset_mtrr(par); - - i810_delete_i2c_busses(par); - - if (par->i810_gtt.i810_cursor_memory) - agp_free_memory(gtt->i810_cursor_memory); - if (par->i810_gtt.i810_fb_memory) - agp_free_memory(gtt->i810_fb_memory); - - if (par->mmio_start_virtual) - iounmap(par->mmio_start_virtual); - if (par->aperture.virtual) - iounmap(par->aperture.virtual); - kfree(par->edid); - if (par->res_flags & FRAMEBUFFER_REQ) - release_mem_region(par->aperture.physical, - par->aperture.size); - if (par->res_flags & MMIO_REQ) - release_mem_region(par->mmio_start_phys, MMIO_SIZE); - - framebuffer_release(info); - -} - -static void __exit i810fb_remove_pci(struct pci_dev *dev) -{ - struct fb_info *info = pci_get_drvdata(dev); - struct i810fb_par *par = info->par; - - unregister_framebuffer(info); - i810fb_release_resource(info, par); - printk("cleanup_module: unloaded i810 framebuffer device\n"); -} - -#ifndef MODULE -static int i810fb_init(void) -{ - char *option = NULL; - - if (fb_get_options("i810fb", &option)) - return -ENODEV; - i810fb_setup(option); - - return pci_register_driver(&i810fb_driver); -} -#endif - -/********************************************************************* - * Modularization * - *********************************************************************/ - -#ifdef MODULE - -static int i810fb_init(void) -{ - hsync1 *= 1000; - hsync2 *= 1000; - - return pci_register_driver(&i810fb_driver); -} - -module_param(vram, int, 0); -MODULE_PARM_DESC(vram, "System RAM to allocate to framebuffer in MiB" - " (default=4)"); -module_param(voffset, int, 0); -MODULE_PARM_DESC(voffset, "at what offset to place start of framebuffer " - "memory (0 to maximum aperture size), in MiB (default = 48)"); -module_param(bpp, int, 0); -MODULE_PARM_DESC(bpp, "Color depth for display in bits per pixel" - " (default = 8)"); -module_param(xres, int, 0); -MODULE_PARM_DESC(xres, "Horizontal resolution in pixels (default = 640)"); -module_param(yres, int, 0); -MODULE_PARM_DESC(yres, "Vertical resolution in scanlines (default = 480)"); -module_param(vyres,int, 0); -MODULE_PARM_DESC(vyres, "Virtual vertical resolution in scanlines" - " (default = 480)"); -module_param(hsync1, int, 0); -MODULE_PARM_DESC(hsync1, "Minimum horizontal frequency of monitor in KHz" - " (default = 29)"); -module_param(hsync2, int, 0); -MODULE_PARM_DESC(hsync2, "Maximum horizontal frequency of monitor in KHz" - " (default = 30)"); -module_param(vsync1, int, 0); -MODULE_PARM_DESC(vsync1, "Minimum vertical frequency of monitor in Hz" - " (default = 50)"); -module_param(vsync2, int, 0); -MODULE_PARM_DESC(vsync2, "Maximum vertical frequency of monitor in Hz" - " (default = 60)"); -module_param(accel, bool, 0); -MODULE_PARM_DESC(accel, "Use Acceleration (BLIT) engine (default = 0)"); -module_param(mtrr, bool, 0); -MODULE_PARM_DESC(mtrr, "Use MTRR (default = 0)"); -module_param(extvga, bool, 0); -MODULE_PARM_DESC(extvga, "Enable external VGA connector (default = 0)"); -module_param(sync, bool, 0); -MODULE_PARM_DESC(sync, "wait for accel engine to finish drawing" - " (default = 0)"); -module_param(dcolor, bool, 0); -MODULE_PARM_DESC(dcolor, "use DirectColor visuals" - " (default = 0 = TrueColor)"); -module_param(ddc3, bool, 0); -MODULE_PARM_DESC(ddc3, "Probe DDC bus 3 (default = 0 = no)"); -module_param(mode_option, charp, 0); -MODULE_PARM_DESC(mode_option, "Specify initial video mode"); - -MODULE_AUTHOR("Tony A. Daplas"); -MODULE_DESCRIPTION("Framebuffer device for the Intel 810/815 and" - " compatible cards"); -MODULE_LICENSE("GPL"); - -static void __exit i810fb_exit(void) -{ - pci_unregister_driver(&i810fb_driver); -} -module_exit(i810fb_exit); - -#endif /* MODULE */ - -module_init(i810fb_init); |