diff options
Diffstat (limited to 'drivers/staging/sm750fb/sm750_hw.c')
| -rw-r--r-- | drivers/staging/sm750fb/sm750_hw.c | 114 |
1 files changed, 58 insertions, 56 deletions
diff --git a/drivers/staging/sm750fb/sm750_hw.c b/drivers/staging/sm750fb/sm750_hw.c index 2daeedd88c30..7dd208caa5eb 100644 --- a/drivers/staging/sm750fb/sm750_hw.c +++ b/drivers/staging/sm750fb/sm750_hw.c @@ -35,17 +35,17 @@ int hw_sm750_map(struct sm750_dev *sm750_dev, struct pci_dev *pdev) pr_info("mmio phyAddr = %lx\n", sm750_dev->vidreg_start); /* reserve the vidreg space of smi adaptor - * if you do this, u need to add release region code + * if you do this, you need to add release region code * in lynxfb_remove, or memory will not be mapped again * successfully - * */ + */ ret = pci_request_region(pdev, 1, "sm750fb"); if (ret) { pr_err("Can not request PCI regions.\n"); goto exit; } - /* now map mmio and vidmem*/ + /* now map mmio and vidmem */ sm750_dev->pvReg = ioremap_nocache(sm750_dev->vidreg_start, sm750_dev->vidreg_size); if (!sm750_dev->pvReg) { @@ -56,7 +56,6 @@ int hw_sm750_map(struct sm750_dev *sm750_dev, struct pci_dev *pdev) pr_info("mmio virtual addr = %p\n", sm750_dev->pvReg); } - sm750_dev->accel.dprBase = sm750_dev->pvReg + DE_BASE_ADDR_TYPE1; sm750_dev->accel.dpPortBase = sm750_dev->pvReg + DE_PORT_ADDR_TYPE1; @@ -64,10 +63,10 @@ int hw_sm750_map(struct sm750_dev *sm750_dev, struct pci_dev *pdev) sm750_dev->vidmem_start = pci_resource_start(pdev, 0); /* don't use pdev_resource[x].end - resource[x].start to - * calculate the resource size,its only the maximum available - * size but not the actual size,use + * calculate the resource size, it's only the maximum available + * size but not the actual size, using * @ddk750_getVMSize function can be safe. - * */ + */ sm750_dev->vidmem_size = ddk750_getVMSize(); pr_info("video memory phyAddr = %lx, size = %u bytes\n", sm750_dev->vidmem_start, sm750_dev->vidmem_size); @@ -86,33 +85,31 @@ exit: return ret; } - - int hw_sm750_inithw(struct sm750_dev *sm750_dev, struct pci_dev *pdev) { struct init_status *parm; parm = &sm750_dev->initParm; if (parm->chip_clk == 0) - parm->chip_clk = (getChipType() == SM750LE) ? + parm->chip_clk = (sm750_get_chip_type() == SM750LE) ? DEFAULT_SM750LE_CHIP_CLOCK : DEFAULT_SM750_CHIP_CLOCK; if (parm->mem_clk == 0) parm->mem_clk = parm->chip_clk; if (parm->master_clk == 0) - parm->master_clk = parm->chip_clk/3; + parm->master_clk = parm->chip_clk / 3; ddk750_initHw((initchip_param_t *)&sm750_dev->initParm); - /* for sm718,open pci burst */ + /* for sm718, open pci burst */ if (sm750_dev->devid == 0x718) { POKE32(SYSTEM_CTRL, PEEK32(SYSTEM_CTRL) | SYSTEM_CTRL_PCI_BURST); } - if (getChipType() != SM750LE) { + if (sm750_get_chip_type() != SM750LE) { unsigned int val; - /* does user need CRT ?*/ + /* does user need CRT? */ if (sm750_dev->nocrt) { POKE32(MISC_CTRL, PEEK32(MISC_CTRL) | MISC_CTRL_DAC_POWER_OFF); @@ -144,19 +141,21 @@ int hw_sm750_inithw(struct sm750_dev *sm750_dev, struct pci_dev *pdev) } POKE32(PANEL_DISPLAY_CTRL, val); } else { - /* for 750LE ,no DVI chip initialization makes Monitor no signal */ - /* Set up GPIO for software I2C to program DVI chip in the - Xilinx SP605 board, in order to have video signal. + /* for 750LE, no DVI chip initialization + * makes Monitor no signal + * + * Set up GPIO for software I2C to program DVI chip in the + * Xilinx SP605 board, in order to have video signal. */ sm750_sw_i2c_init(0, 1); /* Customer may NOT use CH7301 DVI chip, which has to be - initialized differently. - */ + * initialized differently. + */ if (sm750_sw_i2c_read_reg(0xec, 0x4a) == 0x95) { /* The following register values for CH7301 are from - Chrontel app note and our experiment. - */ + * Chrontel app note and our experiment. + */ pr_info("yes,CH7301 DVI chip found\n"); sm750_sw_i2c_write_reg(0xec, 0x1d, 0x16); sm750_sw_i2c_write_reg(0xec, 0x21, 0x9); @@ -173,7 +172,8 @@ int hw_sm750_inithw(struct sm750_dev *sm750_dev, struct pci_dev *pdev) } int hw_sm750_output_setMode(struct lynxfb_output *output, - struct fb_var_screeninfo *var, struct fb_fix_screeninfo *fix) + struct fb_var_screeninfo *var, + struct fb_fix_screeninfo *fix) { int ret; disp_output_t dispSet; @@ -183,8 +183,7 @@ int hw_sm750_output_setMode(struct lynxfb_output *output, dispSet = 0; channel = *output->channel; - - if (getChipType() != SM750LE) { + if (sm750_get_chip_type() != SM750LE) { if (channel == sm750_primary) { pr_info("primary channel\n"); if (output->paths & sm750_panel) @@ -198,11 +197,10 @@ int hw_sm750_output_setMode(struct lynxfb_output *output, dispSet |= do_LCD1_SEC; if (output->paths & sm750_crt) dispSet |= do_CRT_SEC; - } ddk750_setLogicalDispOut(dispSet); } else { - /* just open DISPLAY_CONTROL_750LE register bit 3:0*/ + /* just open DISPLAY_CONTROL_750LE register bit 3:0 */ u32 reg; reg = PEEK32(DISPLAY_CONTROL_750LE); @@ -214,7 +212,8 @@ int hw_sm750_output_setMode(struct lynxfb_output *output, return ret; } -int hw_sm750_crtc_checkMode(struct lynxfb_crtc *crtc, struct fb_var_screeninfo *var) +int hw_sm750_crtc_checkMode(struct lynxfb_crtc *crtc, + struct fb_var_screeninfo *var) { struct sm750_dev *sm750_dev; struct lynxfb_par *par = container_of(crtc, struct lynxfb_par, crtc); @@ -233,19 +232,15 @@ int hw_sm750_crtc_checkMode(struct lynxfb_crtc *crtc, struct fb_var_screeninfo * break; default: return -EINVAL; - } return 0; } - -/* - set the controller's mode for @crtc charged with @var and @fix parameters -*/ +/* set the controller's mode for @crtc charged with @var and @fix parameters */ int hw_sm750_crtc_setMode(struct lynxfb_crtc *crtc, - struct fb_var_screeninfo *var, - struct fb_fix_screeninfo *fix) + struct fb_var_screeninfo *var, + struct fb_fix_screeninfo *fix) { int ret, fmt; u32 reg; @@ -254,7 +249,6 @@ int hw_sm750_crtc_setMode(struct lynxfb_crtc *crtc, struct sm750_dev *sm750_dev; struct lynxfb_par *par; - ret = 0; par = container_of(crtc, struct lynxfb_par, crtc); sm750_dev = par->dev; @@ -278,17 +272,22 @@ int hw_sm750_crtc_setMode(struct lynxfb_crtc *crtc, /* set timing */ modparm.pixel_clock = ps_to_hz(var->pixclock); - modparm.vertical_sync_polarity = (var->sync & FB_SYNC_HOR_HIGH_ACT) ? POS:NEG; - modparm.horizontal_sync_polarity = (var->sync & FB_SYNC_VERT_HIGH_ACT) ? POS:NEG; - modparm.clock_phase_polarity = (var->sync & FB_SYNC_COMP_HIGH_ACT) ? POS:NEG; + modparm.vertical_sync_polarity = (var->sync & FB_SYNC_HOR_HIGH_ACT) + ? POS : NEG; + modparm.horizontal_sync_polarity = (var->sync & FB_SYNC_VERT_HIGH_ACT) + ? POS : NEG; + modparm.clock_phase_polarity = (var->sync & FB_SYNC_COMP_HIGH_ACT) + ? POS : NEG; modparm.horizontal_display_end = var->xres; modparm.horizontal_sync_width = var->hsync_len; modparm.horizontal_sync_start = var->xres + var->right_margin; - modparm.horizontal_total = var->xres + var->left_margin + var->right_margin + var->hsync_len; + modparm.horizontal_total = var->xres + var->left_margin + + var->right_margin + var->hsync_len; modparm.vertical_display_end = var->yres; modparm.vertical_sync_height = var->vsync_len; modparm.vertical_sync_start = var->yres + var->lower_margin; - modparm.vertical_total = var->yres + var->upper_margin + var->lower_margin + var->vsync_len; + modparm.vertical_total = var->yres + var->upper_margin + + var->lower_margin + var->vsync_len; /* choose pll */ if (crtc->channel != sm750_secondary) @@ -304,12 +303,14 @@ int hw_sm750_crtc_setMode(struct lynxfb_crtc *crtc, } if (crtc->channel != sm750_secondary) { - /* set pitch, offset ,width,start address ,etc... */ + /* set pitch, offset, width, start address, etc... */ POKE32(PANEL_FB_ADDRESS, crtc->oScreen & PANEL_FB_ADDRESS_ADDRESS_MASK); reg = var->xres * (var->bits_per_pixel >> 3); - /* crtc->channel is not equal to par->index on numeric,be aware of that */ + /* crtc->channel is not equal to par->index on numeric, + * be aware of that + */ reg = ALIGN(reg, crtc->line_pad); reg = (reg << PANEL_FB_WIDTH_WIDTH_SHIFT) & PANEL_FB_WIDTH_WIDTH_MASK; @@ -321,8 +322,8 @@ int hw_sm750_crtc_setMode(struct lynxfb_crtc *crtc, reg |= (var->xoffset & PANEL_WINDOW_WIDTH_X_MASK); POKE32(PANEL_WINDOW_WIDTH, reg); - reg = ((var->yres_virtual - 1) << - PANEL_WINDOW_HEIGHT_HEIGHT_SHIFT); + reg = (var->yres_virtual - 1) << + PANEL_WINDOW_HEIGHT_HEIGHT_SHIFT; reg &= PANEL_WINDOW_HEIGHT_HEIGHT_MASK; reg |= (var->yoffset & PANEL_WINDOW_HEIGHT_Y_MASK); POKE32(PANEL_WINDOW_HEIGHT, reg); @@ -341,7 +342,9 @@ int hw_sm750_crtc_setMode(struct lynxfb_crtc *crtc, /* not implemented now */ POKE32(CRT_FB_ADDRESS, crtc->oScreen); reg = var->xres * (var->bits_per_pixel >> 3); - /* crtc->channel is not equal to par->index on numeric,be aware of that */ + /* crtc->channel is not equal to par->index on numeric, + * be aware of that + */ reg = ALIGN(reg, crtc->line_pad) << CRT_FB_WIDTH_WIDTH_SHIFT; reg &= CRT_FB_WIDTH_WIDTH_MASK; reg |= (fix->line_length & CRT_FB_WIDTH_OFFSET_MASK); @@ -352,20 +355,19 @@ int hw_sm750_crtc_setMode(struct lynxfb_crtc *crtc, reg |= ((var->bits_per_pixel >> 4) & CRT_DISPLAY_CTRL_FORMAT_MASK); POKE32(CRT_DISPLAY_CTRL, reg); - } - exit: return ret; } int hw_sm750_setColReg(struct lynxfb_crtc *crtc, ushort index, - ushort red, ushort green, ushort blue) + ushort red, ushort green, ushort blue) { static unsigned int add[] = {PANEL_PALETTE_RAM, CRT_PALETTE_RAM}; - POKE32(add[crtc->channel] + index*4, (red<<16)|(green<<8)|blue); + POKE32(add[crtc->channel] + index * 4, + (red << 16) | (green << 8) | blue); return 0; } @@ -414,7 +416,9 @@ int hw_sm750_setBLANK(struct lynxfb_output *output, int blank) { unsigned int dpms, pps, crtdb; - dpms = pps = crtdb = 0; + dpms = 0; + pps = 0; + crtdb = 0; switch (blank) { case FB_BLANK_UNBLANK: @@ -461,14 +465,13 @@ int hw_sm750_setBLANK(struct lynxfb_output *output, int blank) return 0; } - void hw_sm750_initAccel(struct sm750_dev *sm750_dev) { u32 reg; enable2DEngine(1); - if (getChipType() == SM750LE) { + if (sm750_get_chip_type() == SM750LE) { reg = PEEK32(DE_STATE1); reg |= DE_STATE1_DE_ABORT; POKE32(DE_STATE1, reg); @@ -509,7 +512,6 @@ int hw_sm750le_deWait(void) return -1; } - int hw_sm750_deWait(void) { int i = 0x10000000; @@ -529,10 +531,10 @@ int hw_sm750_deWait(void) } int hw_sm750_pan_display(struct lynxfb_crtc *crtc, - const struct fb_var_screeninfo *var, - const struct fb_info *info) + const struct fb_var_screeninfo *var, + const struct fb_info *info) { - uint32_t total; + u32 total; /* check params */ if ((var->xoffset + var->xres > var->xres_virtual) || (var->yoffset + var->yres > var->yres_virtual)) { |