diff options
Diffstat (limited to 'drivers/staging/sm750fb/sm750.c')
-rw-r--r-- | drivers/staging/sm750fb/sm750.c | 1191 |
1 files changed, 1191 insertions, 0 deletions
diff --git a/drivers/staging/sm750fb/sm750.c b/drivers/staging/sm750fb/sm750.c new file mode 100644 index 0000000000..79bcd5bd49 --- /dev/null +++ b/drivers/staging/sm750fb/sm750.c @@ -0,0 +1,1191 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <linux/aperture.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/errno.h> +#include <linux/string.h> +#include <linux/mm.h> +#include <linux/slab.h> +#include <linux/delay.h> +#include <linux/fb.h> +#include <linux/ioport.h> +#include <linux/init.h> +#include <linux/pci.h> +#include <linux/mm_types.h> +#include <linux/vmalloc.h> +#include <linux/pagemap.h> +#include <linux/console.h> + +#include "sm750.h" +#include "sm750_accel.h" +#include "sm750_cursor.h" + +/* + * #ifdef __BIG_ENDIAN + * ssize_t lynxfb_ops_write(struct fb_info *info, const char __user *buf, + * size_t count, loff_t *ppos); + * ssize_t lynxfb_ops_read(struct fb_info *info, char __user *buf, + * size_t count, loff_t *ppos); + * #endif + */ + +/* common var for all device */ +static int g_hwcursor = 1; +static int g_noaccel; +static int g_nomtrr; +static const char *g_fbmode[] = {NULL, NULL}; +static const char *g_def_fbmode = "1024x768-32@60"; +static char *g_settings; +static int g_dualview; +static char *g_option; + +static const struct fb_videomode lynx750_ext[] = { + /* 1024x600-60 VESA [1.71:1] */ + {NULL, 60, 1024, 600, 20423, 144, 40, 18, 1, 104, 3, + FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, + FB_VMODE_NONINTERLACED}, + + /* 1024x600-70 VESA */ + {NULL, 70, 1024, 600, 17211, 152, 48, 21, 1, 104, 3, + FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, + FB_VMODE_NONINTERLACED}, + + /* 1024x600-75 VESA */ + {NULL, 75, 1024, 600, 15822, 160, 56, 23, 1, 104, 3, + FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, + FB_VMODE_NONINTERLACED}, + + /* 1024x600-85 VESA */ + {NULL, 85, 1024, 600, 13730, 168, 56, 26, 1, 112, 3, + FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, + FB_VMODE_NONINTERLACED}, + + /* 720x480 */ + {NULL, 60, 720, 480, 37427, 88, 16, 13, 1, 72, 3, + FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, + FB_VMODE_NONINTERLACED}, + + /* 1280x720 [1.78:1] */ + {NULL, 60, 1280, 720, 13426, 162, 86, 22, 1, 136, 3, + FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, + FB_VMODE_NONINTERLACED}, + + /* 1280x768@60 */ + {NULL, 60, 1280, 768, 12579, 192, 64, 20, 3, 128, 7, + FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, + FB_VMODE_NONINTERLACED}, + + /* 1360 x 768 [1.77083:1] */ + {NULL, 60, 1360, 768, 11804, 208, 64, 23, 1, 144, 3, + FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, + FB_VMODE_NONINTERLACED}, + + /* 1368 x 768 [1.78:1] */ + {NULL, 60, 1368, 768, 11647, 216, 72, 23, 1, 144, 3, + FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, + FB_VMODE_NONINTERLACED}, + + /* 1440 x 900 [16:10] */ + {NULL, 60, 1440, 900, 9392, 232, 80, 28, 1, 152, 3, + FB_SYNC_VERT_HIGH_ACT, + FB_VMODE_NONINTERLACED}, + + /* 1440x960 [15:10] */ + {NULL, 60, 1440, 960, 8733, 240, 88, 30, 1, 152, 3, + FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, + FB_VMODE_NONINTERLACED}, + + /* 1920x1080 [16:9] */ + {NULL, 60, 1920, 1080, 6734, 148, 88, 41, 1, 44, 3, + FB_SYNC_VERT_HIGH_ACT, + FB_VMODE_NONINTERLACED}, +}; + +/* no hardware cursor supported under version 2.6.10, kernel bug */ +static int lynxfb_ops_cursor(struct fb_info *info, struct fb_cursor *fbcursor) +{ + struct lynxfb_par *par; + struct lynxfb_crtc *crtc; + struct lynx_cursor *cursor; + + par = info->par; + crtc = &par->crtc; + cursor = &crtc->cursor; + + if (fbcursor->image.width > cursor->max_w || + fbcursor->image.height > cursor->max_h || + fbcursor->image.depth > 1) { + return -ENXIO; + } + + sm750_hw_cursor_disable(cursor); + if (fbcursor->set & FB_CUR_SETSIZE) + sm750_hw_cursor_setSize(cursor, + fbcursor->image.width, + fbcursor->image.height); + + if (fbcursor->set & FB_CUR_SETPOS) + sm750_hw_cursor_setPos(cursor, + fbcursor->image.dx - info->var.xoffset, + fbcursor->image.dy - info->var.yoffset); + + if (fbcursor->set & FB_CUR_SETCMAP) { + /* get the 16bit color of kernel means */ + u16 fg, bg; + + fg = ((info->cmap.red[fbcursor->image.fg_color] & 0xf800)) | + ((info->cmap.green[fbcursor->image.fg_color] & 0xfc00) >> 5) | + ((info->cmap.blue[fbcursor->image.fg_color] & 0xf800) >> 11); + + bg = ((info->cmap.red[fbcursor->image.bg_color] & 0xf800)) | + ((info->cmap.green[fbcursor->image.bg_color] & 0xfc00) >> 5) | + ((info->cmap.blue[fbcursor->image.bg_color] & 0xf800) >> 11); + + sm750_hw_cursor_setColor(cursor, fg, bg); + } + + if (fbcursor->set & (FB_CUR_SETSHAPE | FB_CUR_SETIMAGE)) { + sm750_hw_cursor_setData(cursor, + fbcursor->rop, + fbcursor->image.data, + fbcursor->mask); + } + + if (fbcursor->enable) + sm750_hw_cursor_enable(cursor); + + return 0; +} + +static void lynxfb_ops_fillrect(struct fb_info *info, + const struct fb_fillrect *region) +{ + struct lynxfb_par *par; + struct sm750_dev *sm750_dev; + unsigned int base, pitch, Bpp, rop; + u32 color; + + if (info->state != FBINFO_STATE_RUNNING) + return; + + par = info->par; + sm750_dev = par->dev; + + /* + * each time 2d function begin to work,below three variable always need + * be set, seems we can put them together in some place + */ + base = par->crtc.o_screen; + pitch = info->fix.line_length; + Bpp = info->var.bits_per_pixel >> 3; + + color = (Bpp == 1) ? region->color : + ((u32 *)info->pseudo_palette)[region->color]; + rop = (region->rop != ROP_COPY) ? HW_ROP2_XOR : HW_ROP2_COPY; + + /* + * If not use spin_lock, system will die if user load driver + * and immediately unload driver frequently (dual) + * since they fb_count could change during the lifetime of + * this lock, we are holding it for all cases. + */ + spin_lock(&sm750_dev->slock); + + sm750_dev->accel.de_fillrect(&sm750_dev->accel, + base, pitch, Bpp, + region->dx, region->dy, + region->width, region->height, + color, rop); + spin_unlock(&sm750_dev->slock); +} + +static void lynxfb_ops_copyarea(struct fb_info *info, + const struct fb_copyarea *region) +{ + struct lynxfb_par *par; + struct sm750_dev *sm750_dev; + unsigned int base, pitch, Bpp; + + par = info->par; + sm750_dev = par->dev; + + /* + * each time 2d function begin to work,below three variable always need + * be set, seems we can put them together in some place + */ + base = par->crtc.o_screen; + pitch = info->fix.line_length; + Bpp = info->var.bits_per_pixel >> 3; + + /* + * If not use spin_lock, system will die if user load driver + * and immediately unload driver frequently (dual) + * since they fb_count could change during the lifetime of + * this lock, we are holding it for all cases. + */ + spin_lock(&sm750_dev->slock); + + sm750_dev->accel.de_copyarea(&sm750_dev->accel, + base, pitch, region->sx, region->sy, + base, pitch, Bpp, region->dx, region->dy, + region->width, region->height, + HW_ROP2_COPY); + spin_unlock(&sm750_dev->slock); +} + +static void lynxfb_ops_imageblit(struct fb_info *info, + const struct fb_image *image) +{ + unsigned int base, pitch, Bpp; + unsigned int fgcol, bgcol; + struct lynxfb_par *par; + struct sm750_dev *sm750_dev; + + par = info->par; + sm750_dev = par->dev; + /* + * each time 2d function begin to work,below three variable always need + * be set, seems we can put them together in some place + */ + base = par->crtc.o_screen; + pitch = info->fix.line_length; + Bpp = info->var.bits_per_pixel >> 3; + + /* TODO: Implement hardware acceleration for image->depth > 1 */ + if (image->depth != 1) { + cfb_imageblit(info, image); + return; + } + + if (info->fix.visual == FB_VISUAL_TRUECOLOR || + info->fix.visual == FB_VISUAL_DIRECTCOLOR) { + fgcol = ((u32 *)info->pseudo_palette)[image->fg_color]; + bgcol = ((u32 *)info->pseudo_palette)[image->bg_color]; + } else { + fgcol = image->fg_color; + bgcol = image->bg_color; + } + + /* + * If not use spin_lock, system will die if user load driver + * and immediately unload driver frequently (dual) + * since they fb_count could change during the lifetime of + * this lock, we are holding it for all cases. + */ + spin_lock(&sm750_dev->slock); + + sm750_dev->accel.de_imageblit(&sm750_dev->accel, + image->data, image->width >> 3, 0, + base, pitch, Bpp, + image->dx, image->dy, + image->width, image->height, + fgcol, bgcol, HW_ROP2_COPY); + spin_unlock(&sm750_dev->slock); +} + +static int lynxfb_ops_pan_display(struct fb_var_screeninfo *var, + struct fb_info *info) +{ + struct lynxfb_par *par; + struct lynxfb_crtc *crtc; + + if (!info) + return -EINVAL; + + par = info->par; + crtc = &par->crtc; + return hw_sm750_pan_display(crtc, var, info); +} + +static inline void lynxfb_set_visual_mode(struct fb_info *info) +{ + switch (info->var.bits_per_pixel) { + case 8: + info->fix.visual = FB_VISUAL_PSEUDOCOLOR; + break; + case 16: + case 24: + case 32: + info->fix.visual = FB_VISUAL_TRUECOLOR; + break; + default: + break; + } +} + +static inline int lynxfb_set_color_offsets(struct fb_info *info) +{ + lynxfb_set_visual_mode(info); + + switch (info->var.bits_per_pixel) { + case 8: + info->var.red.offset = 0; + info->var.red.length = 8; + info->var.green.offset = 0; + info->var.green.length = 8; + info->var.blue.offset = 0; + info->var.blue.length = 8; + info->var.transp.length = 0; + info->var.transp.offset = 0; + break; + case 16: + info->var.red.offset = 11; + info->var.red.length = 5; + info->var.green.offset = 5; + info->var.green.length = 6; + info->var.blue.offset = 0; + info->var.blue.length = 5; + info->var.transp.length = 0; + info->var.transp.offset = 0; + break; + case 24: + case 32: + info->var.red.offset = 16; + info->var.red.length = 8; + info->var.green.offset = 8; + info->var.green.length = 8; + info->var.blue.offset = 0; + info->var.blue.length = 8; + break; + default: + return -EINVAL; + } + return 0; +} + +static int lynxfb_ops_set_par(struct fb_info *info) +{ + struct lynxfb_par *par; + struct lynxfb_crtc *crtc; + struct lynxfb_output *output; + struct fb_var_screeninfo *var; + struct fb_fix_screeninfo *fix; + int ret; + unsigned int line_length; + + if (!info) + return -EINVAL; + + ret = 0; + par = info->par; + crtc = &par->crtc; + output = &par->output; + var = &info->var; + fix = &info->fix; + + /* fix structure is not so FIX ... */ + line_length = var->xres_virtual * var->bits_per_pixel / 8; + line_length = ALIGN(line_length, crtc->line_pad); + fix->line_length = line_length; + pr_info("fix->line_length = %d\n", fix->line_length); + + /* + * var->red,green,blue,transp are need to be set by driver + * and these data should be set before setcolreg routine + */ + + ret = lynxfb_set_color_offsets(info); + + var->height = -1; + var->width = -1; + var->accel_flags = 0;/*FB_ACCELF_TEXT;*/ + + if (ret) { + pr_err("bpp %d not supported\n", var->bits_per_pixel); + return ret; + } + ret = hw_sm750_crtc_setMode(crtc, var, fix); + if (!ret) + ret = hw_sm750_output_setMode(output, var, fix); + return ret; +} + +static inline unsigned int chan_to_field(unsigned int chan, + struct fb_bitfield *bf) +{ + chan &= 0xffff; + chan >>= 16 - bf->length; + return chan << bf->offset; +} + +static int __maybe_unused lynxfb_suspend(struct device *dev) +{ + struct fb_info *info; + struct sm750_dev *sm750_dev; + + sm750_dev = dev_get_drvdata(dev); + + console_lock(); + info = sm750_dev->fbinfo[0]; + if (info) + /* 1 means do suspend */ + fb_set_suspend(info, 1); + info = sm750_dev->fbinfo[1]; + if (info) + /* 1 means do suspend */ + fb_set_suspend(info, 1); + + console_unlock(); + return 0; +} + +static int __maybe_unused lynxfb_resume(struct device *dev) +{ + struct pci_dev *pdev = to_pci_dev(dev); + struct fb_info *info; + struct sm750_dev *sm750_dev; + + struct lynxfb_par *par; + struct lynxfb_crtc *crtc; + struct lynx_cursor *cursor; + + sm750_dev = pci_get_drvdata(pdev); + + console_lock(); + + hw_sm750_inithw(sm750_dev, pdev); + + info = sm750_dev->fbinfo[0]; + + if (info) { + par = info->par; + crtc = &par->crtc; + cursor = &crtc->cursor; + memset_io(cursor->vstart, 0x0, cursor->size); + memset_io(crtc->v_screen, 0x0, crtc->vidmem_size); + lynxfb_ops_set_par(info); + fb_set_suspend(info, 0); + } + + info = sm750_dev->fbinfo[1]; + + if (info) { + par = info->par; + crtc = &par->crtc; + cursor = &crtc->cursor; + memset_io(cursor->vstart, 0x0, cursor->size); + memset_io(crtc->v_screen, 0x0, crtc->vidmem_size); + lynxfb_ops_set_par(info); + fb_set_suspend(info, 0); + } + + pdev->dev.power.power_state.event = PM_EVENT_RESUME; + + console_unlock(); + return 0; +} + +static int lynxfb_ops_check_var(struct fb_var_screeninfo *var, + struct fb_info *info) +{ + int ret; + struct lynxfb_par *par; + struct lynxfb_crtc *crtc; + resource_size_t request; + + ret = 0; + par = info->par; + crtc = &par->crtc; + + pr_debug("check var:%dx%d-%d\n", + var->xres, + var->yres, + var->bits_per_pixel); + + ret = lynxfb_set_color_offsets(info); + + if (ret) { + pr_err("bpp %d not supported\n", var->bits_per_pixel); + return ret; + } + + var->height = -1; + var->width = -1; + var->accel_flags = 0;/* FB_ACCELF_TEXT; */ + + /* check if current fb's video memory big enough to hold the onscreen*/ + request = var->xres_virtual * (var->bits_per_pixel >> 3); + /* defaulty crtc->channel go with par->index */ + + request = ALIGN(request, crtc->line_pad); + request = request * var->yres_virtual; + if (crtc->vidmem_size < request) { + pr_err("not enough video memory for mode\n"); + return -ENOMEM; + } + + return hw_sm750_crtc_checkMode(crtc, var); +} + +static int lynxfb_ops_setcolreg(unsigned int regno, + unsigned int red, + unsigned int green, + unsigned int blue, + unsigned int transp, + struct fb_info *info) +{ + struct lynxfb_par *par; + struct lynxfb_crtc *crtc; + struct fb_var_screeninfo *var; + int ret; + + par = info->par; + crtc = &par->crtc; + var = &info->var; + ret = 0; + + if (regno > 256) { + pr_err("regno = %d\n", regno); + return -EINVAL; + } + + if (info->var.grayscale) + red = green = blue = (red * 77 + green * 151 + blue * 28) >> 8; + + if (var->bits_per_pixel == 8 && + info->fix.visual == FB_VISUAL_PSEUDOCOLOR) { + red >>= 8; + green >>= 8; + blue >>= 8; + ret = hw_sm750_setColReg(crtc, regno, red, green, blue); + goto exit; + } + + if (info->fix.visual == FB_VISUAL_TRUECOLOR && regno < 256) { + u32 val; + + if (var->bits_per_pixel == 16 || + var->bits_per_pixel == 32 || + var->bits_per_pixel == 24) { + val = chan_to_field(red, &var->red); + val |= chan_to_field(green, &var->green); + val |= chan_to_field(blue, &var->blue); + par->pseudo_palette[regno] = val; + goto exit; + } + } + + ret = -EINVAL; + +exit: + return ret; +} + +static int lynxfb_ops_blank(int blank, struct fb_info *info) +{ + struct lynxfb_par *par; + struct lynxfb_output *output; + + pr_debug("blank = %d.\n", blank); + par = info->par; + output = &par->output; + return output->proc_setBLANK(output, blank); +} + +static int sm750fb_set_drv(struct lynxfb_par *par) +{ + int ret; + struct sm750_dev *sm750_dev; + struct lynxfb_output *output; + struct lynxfb_crtc *crtc; + + ret = 0; + + sm750_dev = par->dev; + output = &par->output; + crtc = &par->crtc; + + crtc->vidmem_size = sm750_dev->vidmem_size; + if (sm750_dev->fb_count > 1) + crtc->vidmem_size >>= 1; + + /* setup crtc and output member */ + sm750_dev->hwCursor = g_hwcursor; + + crtc->line_pad = 16; + crtc->xpanstep = 8; + crtc->ypanstep = 1; + crtc->ywrapstep = 0; + + output->proc_setBLANK = (sm750_dev->revid == SM750LE_REVISION_ID) ? + hw_sm750le_setBLANK : hw_sm750_setBLANK; + /* chip specific phase */ + sm750_dev->accel.de_wait = (sm750_dev->revid == SM750LE_REVISION_ID) ? + hw_sm750le_deWait : hw_sm750_deWait; + switch (sm750_dev->dataflow) { + case sm750_simul_pri: + output->paths = sm750_pnc; + crtc->channel = sm750_primary; + crtc->o_screen = 0; + crtc->v_screen = sm750_dev->pvMem; + pr_info("use simul primary mode\n"); + break; + case sm750_simul_sec: + output->paths = sm750_pnc; + crtc->channel = sm750_secondary; + crtc->o_screen = 0; + crtc->v_screen = sm750_dev->pvMem; + break; + case sm750_dual_normal: + if (par->index == 0) { + output->paths = sm750_panel; + crtc->channel = sm750_primary; + crtc->o_screen = 0; + crtc->v_screen = sm750_dev->pvMem; + } else { + output->paths = sm750_crt; + crtc->channel = sm750_secondary; + /* not consider of padding stuffs for o_screen,need fix */ + crtc->o_screen = sm750_dev->vidmem_size >> 1; + crtc->v_screen = sm750_dev->pvMem + crtc->o_screen; + } + break; + case sm750_dual_swap: + if (par->index == 0) { + output->paths = sm750_panel; + crtc->channel = sm750_secondary; + crtc->o_screen = 0; + crtc->v_screen = sm750_dev->pvMem; + } else { + output->paths = sm750_crt; + crtc->channel = sm750_primary; + /* not consider of padding stuffs for o_screen, + * need fix + */ + crtc->o_screen = sm750_dev->vidmem_size >> 1; + crtc->v_screen = sm750_dev->pvMem + crtc->o_screen; + } + break; + default: + ret = -EINVAL; + } + + return ret; +} + +static struct fb_ops lynxfb_ops = { + .owner = THIS_MODULE, + .fb_check_var = lynxfb_ops_check_var, + .fb_set_par = lynxfb_ops_set_par, + .fb_setcolreg = lynxfb_ops_setcolreg, + .fb_blank = lynxfb_ops_blank, + .fb_fillrect = cfb_fillrect, + .fb_imageblit = cfb_imageblit, + .fb_copyarea = cfb_copyarea, + /* cursor */ + .fb_cursor = lynxfb_ops_cursor, +}; + +static int lynxfb_set_fbinfo(struct fb_info *info, int index) +{ + int i; + struct lynxfb_par *par; + struct sm750_dev *sm750_dev; + struct lynxfb_crtc *crtc; + struct lynxfb_output *output; + struct fb_var_screeninfo *var; + struct fb_fix_screeninfo *fix; + + const struct fb_videomode *pdb[] = { + lynx750_ext, NULL, vesa_modes, + }; + int cdb[] = {ARRAY_SIZE(lynx750_ext), 0, VESA_MODEDB_SIZE}; + static const char * const mdb_desc[] = { + "driver prepared modes", + "kernel prepared default modedb", + "kernel HELPERS prepared vesa_modes", + }; + + static const char *fixId[2] = { + "sm750_fb1", "sm750_fb2", + }; + + int ret, line_length; + + ret = 0; + par = (struct lynxfb_par *)info->par; + sm750_dev = par->dev; + crtc = &par->crtc; + output = &par->output; + var = &info->var; + fix = &info->fix; + + /* set index */ + par->index = index; + output->channel = &crtc->channel; + sm750fb_set_drv(par); + lynxfb_ops.fb_pan_display = lynxfb_ops_pan_display; + + /* + * set current cursor variable and proc pointer, + * must be set after crtc member initialized + */ + crtc->cursor.offset = crtc->o_screen + crtc->vidmem_size - 1024; + crtc->cursor.mmio = sm750_dev->pvReg + + 0x800f0 + (int)crtc->channel * 0x140; + + pr_info("crtc->cursor.mmio = %p\n", crtc->cursor.mmio); + crtc->cursor.max_h = 64; + crtc->cursor.max_w = 64; + crtc->cursor.size = crtc->cursor.max_h * crtc->cursor.max_w * 2 / 8; + crtc->cursor.vstart = sm750_dev->pvMem + crtc->cursor.offset; + + memset_io(crtc->cursor.vstart, 0, crtc->cursor.size); + if (!g_hwcursor) { + lynxfb_ops.fb_cursor = NULL; + sm750_hw_cursor_disable(&crtc->cursor); + } + + /* set info->fbops, must be set before fb_find_mode */ + if (!sm750_dev->accel_off) { + /* use 2d acceleration */ + lynxfb_ops.fb_fillrect = lynxfb_ops_fillrect; + lynxfb_ops.fb_copyarea = lynxfb_ops_copyarea; + lynxfb_ops.fb_imageblit = lynxfb_ops_imageblit; + } + info->fbops = &lynxfb_ops; + + if (!g_fbmode[index]) { + g_fbmode[index] = g_def_fbmode; + if (index) + g_fbmode[index] = g_fbmode[0]; + } + + for (i = 0; i < 3; i++) { + ret = fb_find_mode(var, info, g_fbmode[index], + pdb[i], cdb[i], NULL, 8); + + if (ret == 1) { + pr_info("success! use specified mode:%s in %s\n", + g_fbmode[index], + mdb_desc[i]); + break; + } else if (ret == 2) { + pr_warn("use specified mode:%s in %s,with an ignored refresh rate\n", + g_fbmode[index], + mdb_desc[i]); + break; + } else if (ret == 3) { + pr_warn("wanna use default mode\n"); + /*break;*/ + } else if (ret == 4) { + pr_warn("fall back to any valid mode\n"); + } else { + pr_warn("ret = %d,fb_find_mode failed,with %s\n", + ret, + mdb_desc[i]); + } + } + + /* some member of info->var had been set by fb_find_mode */ + + pr_info("Member of info->var is :\n" + "xres=%d\n" + "yres=%d\n" + "xres_virtual=%d\n" + "yres_virtual=%d\n" + "xoffset=%d\n" + "yoffset=%d\n" + "bits_per_pixel=%d\n" + " ...\n", + var->xres, + var->yres, + var->xres_virtual, + var->yres_virtual, + var->xoffset, + var->yoffset, + var->bits_per_pixel); + + /* set par */ + par->info = info; + + /* set info */ + line_length = ALIGN((var->xres_virtual * var->bits_per_pixel / 8), + crtc->line_pad); + + info->pseudo_palette = &par->pseudo_palette[0]; + info->screen_base = crtc->v_screen; + pr_debug("screen_base vaddr = %p\n", info->screen_base); + info->screen_size = line_length * var->yres_virtual; + + /* set info->fix */ + fix->type = FB_TYPE_PACKED_PIXELS; + fix->type_aux = 0; + fix->xpanstep = crtc->xpanstep; + fix->ypanstep = crtc->ypanstep; + fix->ywrapstep = crtc->ywrapstep; + fix->accel = FB_ACCEL_SMI; + + strscpy(fix->id, fixId[index], sizeof(fix->id)); + + fix->smem_start = crtc->o_screen + sm750_dev->vidmem_start; + pr_info("fix->smem_start = %lx\n", fix->smem_start); + /* + * according to mmap experiment from user space application, + * fix->mmio_len should not larger than virtual size + * (xres_virtual x yres_virtual x ByPP) + * Below line maybe buggy when user mmap fb dev node and write + * data into the bound over virtual size + */ + fix->smem_len = crtc->vidmem_size; + pr_info("fix->smem_len = %x\n", fix->smem_len); + info->screen_size = fix->smem_len; + fix->line_length = line_length; + fix->mmio_start = sm750_dev->vidreg_start; + pr_info("fix->mmio_start = %lx\n", fix->mmio_start); + fix->mmio_len = sm750_dev->vidreg_size; + pr_info("fix->mmio_len = %x\n", fix->mmio_len); + + lynxfb_set_visual_mode(info); + + /* set var */ + var->activate = FB_ACTIVATE_NOW; + var->accel_flags = 0; + var->vmode = FB_VMODE_NONINTERLACED; + + pr_debug("#1 show info->cmap :\nstart=%d,len=%d,red=%p,green=%p,blue=%p,transp=%p\n", + info->cmap.start, info->cmap.len, + info->cmap.red, info->cmap.green, info->cmap.blue, + info->cmap.transp); + + ret = fb_alloc_cmap(&info->cmap, 256, 0); + if (ret < 0) { + pr_err("Could not allocate memory for cmap.\n"); + goto exit; + } + + pr_debug("#2 show info->cmap :\nstart=%d,len=%d,red=%p,green=%p,blue=%p,transp=%p\n", + info->cmap.start, info->cmap.len, + info->cmap.red, info->cmap.green, info->cmap.blue, + info->cmap.transp); + +exit: + lynxfb_ops_check_var(var, info); + return ret; +} + +/* chip specific g_option configuration routine */ +static void sm750fb_setup(struct sm750_dev *sm750_dev, char *src) +{ + char *opt; + int swap; + + swap = 0; + + sm750_dev->initParm.chip_clk = 0; + sm750_dev->initParm.mem_clk = 0; + sm750_dev->initParm.master_clk = 0; + sm750_dev->initParm.powerMode = 0; + sm750_dev->initParm.setAllEngOff = 0; + sm750_dev->initParm.resetMemory = 1; + + /* defaultly turn g_hwcursor on for both view */ + g_hwcursor = 3; + + if (!src || !*src) { + dev_warn(&sm750_dev->pdev->dev, "no specific g_option.\n"); + goto NO_PARAM; + } + + while ((opt = strsep(&src, ":")) != NULL && *opt != 0) { + dev_info(&sm750_dev->pdev->dev, "opt=%s\n", opt); + dev_info(&sm750_dev->pdev->dev, "src=%s\n", src); + + if (!strncmp(opt, "swap", strlen("swap"))) { + swap = 1; + } else if (!strncmp(opt, "nocrt", strlen("nocrt"))) { + sm750_dev->nocrt = 1; + } else if (!strncmp(opt, "36bit", strlen("36bit"))) { + sm750_dev->pnltype = sm750_doubleTFT; + } else if (!strncmp(opt, "18bit", strlen("18bit"))) { + sm750_dev->pnltype = sm750_dualTFT; + } else if (!strncmp(opt, "24bit", strlen("24bit"))) { + sm750_dev->pnltype = sm750_24TFT; + } else if (!strncmp(opt, "nohwc0", strlen("nohwc0"))) { + g_hwcursor &= ~0x1; + } else if (!strncmp(opt, "nohwc1", strlen("nohwc1"))) { + g_hwcursor &= ~0x2; + } else if (!strncmp(opt, "nohwc", strlen("nohwc"))) { + g_hwcursor = 0; + } else { + if (!g_fbmode[0]) { + g_fbmode[0] = opt; + dev_info(&sm750_dev->pdev->dev, + "find fbmode0 : %s\n", g_fbmode[0]); + } else if (!g_fbmode[1]) { + g_fbmode[1] = opt; + dev_info(&sm750_dev->pdev->dev, + "find fbmode1 : %s\n", g_fbmode[1]); + } else { + dev_warn(&sm750_dev->pdev->dev, "How many view you wann set?\n"); + } + } + } + +NO_PARAM: + if (sm750_dev->revid != SM750LE_REVISION_ID) { + if (sm750_dev->fb_count > 1) { + if (swap) + sm750_dev->dataflow = sm750_dual_swap; + else + sm750_dev->dataflow = sm750_dual_normal; + } else { + if (swap) + sm750_dev->dataflow = sm750_simul_sec; + else + sm750_dev->dataflow = sm750_simul_pri; + } + } else { + /* SM750LE only have one crt channel */ + sm750_dev->dataflow = sm750_simul_sec; + /* sm750le do not have complex attributes */ + sm750_dev->nocrt = 0; + } +} + +static void sm750fb_framebuffer_release(struct sm750_dev *sm750_dev) +{ + struct fb_info *fb_info; + + while (sm750_dev->fb_count) { + fb_info = sm750_dev->fbinfo[sm750_dev->fb_count - 1]; + unregister_framebuffer(fb_info); + framebuffer_release(fb_info); + sm750_dev->fb_count--; + } +} + +static int sm750fb_framebuffer_alloc(struct sm750_dev *sm750_dev, int fbidx) +{ + struct fb_info *fb_info; + struct lynxfb_par *par; + int err; + + fb_info = framebuffer_alloc(sizeof(struct lynxfb_par), + &sm750_dev->pdev->dev); + if (!fb_info) + return -ENOMEM; + + sm750_dev->fbinfo[fbidx] = fb_info; + par = fb_info->par; + par->dev = sm750_dev; + + err = lynxfb_set_fbinfo(fb_info, fbidx); + if (err) + goto release_fb; + + err = register_framebuffer(fb_info); + if (err < 0) + goto release_fb; + + sm750_dev->fb_count++; + + return 0; + +release_fb: + framebuffer_release(fb_info); + return err; +} + +static int lynxfb_pci_probe(struct pci_dev *pdev, + const struct pci_device_id *ent) +{ + struct sm750_dev *sm750_dev = NULL; + int max_fb; + int fbidx; + int err; + + err = aperture_remove_conflicting_pci_devices(pdev, "sm750_fb1"); + if (err) + return err; + + /* enable device */ + err = pcim_enable_device(pdev); + if (err) + return err; + + err = -ENOMEM; + sm750_dev = devm_kzalloc(&pdev->dev, sizeof(*sm750_dev), GFP_KERNEL); + if (!sm750_dev) + return err; + + sm750_dev->fbinfo[0] = NULL; + sm750_dev->fbinfo[1] = NULL; + sm750_dev->devid = pdev->device; + sm750_dev->revid = pdev->revision; + sm750_dev->pdev = pdev; + sm750_dev->mtrr_off = g_nomtrr; + sm750_dev->mtrr.vram = 0; + sm750_dev->accel_off = g_noaccel; + spin_lock_init(&sm750_dev->slock); + + if (!sm750_dev->accel_off) { + /* + * hook deInit and 2d routines, notes that below hw_xxx + * routine can work on most of lynx chips + * if some chip need specific function, + * please hook it in smXXX_set_drv routine + */ + sm750_dev->accel.de_init = sm750_hw_de_init; + sm750_dev->accel.de_fillrect = sm750_hw_fillrect; + sm750_dev->accel.de_copyarea = sm750_hw_copyarea; + sm750_dev->accel.de_imageblit = sm750_hw_imageblit; + } + + /* call chip specific setup routine */ + sm750fb_setup(sm750_dev, g_settings); + + /* call chip specific mmap routine */ + err = hw_sm750_map(sm750_dev, pdev); + if (err) + return err; + + if (!sm750_dev->mtrr_off) + sm750_dev->mtrr.vram = arch_phys_wc_add(sm750_dev->vidmem_start, + sm750_dev->vidmem_size); + + memset_io(sm750_dev->pvMem, 0, sm750_dev->vidmem_size); + + pci_set_drvdata(pdev, sm750_dev); + + /* call chipInit routine */ + hw_sm750_inithw(sm750_dev, pdev); + + /* allocate frame buffer info structures according to g_dualview */ + max_fb = g_dualview ? 2 : 1; + for (fbidx = 0; fbidx < max_fb; fbidx++) { + err = sm750fb_framebuffer_alloc(sm750_dev, fbidx); + if (err) + goto release_fb; + } + + return 0; + +release_fb: + sm750fb_framebuffer_release(sm750_dev); + return err; +} + +static void lynxfb_pci_remove(struct pci_dev *pdev) +{ + struct sm750_dev *sm750_dev; + + sm750_dev = pci_get_drvdata(pdev); + + sm750fb_framebuffer_release(sm750_dev); + arch_phys_wc_del(sm750_dev->mtrr.vram); + + iounmap(sm750_dev->pvReg); + iounmap(sm750_dev->pvMem); + kfree(g_settings); +} + +static int __init lynxfb_setup(char *options) +{ + int len; + char *opt, *tmp; + + if (!options || !*options) { + pr_warn("no options.\n"); + return 0; + } + + pr_info("options:%s\n", options); + + len = strlen(options) + 1; + g_settings = kzalloc(len, GFP_KERNEL); + if (!g_settings) + return -ENOMEM; + + tmp = g_settings; + + /* + * Notes: + * char * strsep(char **s,const char * ct); + * @s: the string to be searched + * @ct :the characters to search for + * + * strsep() updates @options to pointer after the first found token + * it also returns the pointer ahead the token. + */ + while ((opt = strsep(&options, ":")) != NULL) { + /* options that mean for any lynx chips are configured here */ + if (!strncmp(opt, "noaccel", strlen("noaccel"))) { + g_noaccel = 1; + } else if (!strncmp(opt, "nomtrr", strlen("nomtrr"))) { + g_nomtrr = 1; + } else if (!strncmp(opt, "dual", strlen("dual"))) { + g_dualview = 1; + } else { + strcat(tmp, opt); + tmp += strlen(opt); + if (options) + *tmp++ = ':'; + else + *tmp++ = 0; + } + } + + /* misc g_settings are transport to chip specific routines */ + pr_info("parameter left for chip specific analysis:%s\n", g_settings); + return 0; +} + +static const struct pci_device_id smi_pci_table[] = { + { PCI_DEVICE(0x126f, 0x0750), }, + {0,} +}; + +MODULE_DEVICE_TABLE(pci, smi_pci_table); + +static SIMPLE_DEV_PM_OPS(lynxfb_pm_ops, lynxfb_suspend, lynxfb_resume); + +static struct pci_driver lynxfb_driver = { + .name = "sm750fb", + .id_table = smi_pci_table, + .probe = lynxfb_pci_probe, + .remove = lynxfb_pci_remove, + .driver.pm = &lynxfb_pm_ops, +}; + +static int __init lynxfb_init(void) +{ + char *option; + + if (fb_modesetting_disabled("sm750fb")) + return -ENODEV; + +#ifdef MODULE + option = g_option; +#else + if (fb_get_options("sm750fb", &option)) + return -ENODEV; +#endif + + lynxfb_setup(option); + return pci_register_driver(&lynxfb_driver); +} +module_init(lynxfb_init); + +static void __exit lynxfb_exit(void) +{ + pci_unregister_driver(&lynxfb_driver); +} +module_exit(lynxfb_exit); + +module_param(g_option, charp, 0444); + +MODULE_PARM_DESC(g_option, + "\n\t\tCommon options:\n" + "\t\tnoaccel:disable 2d capabilities\n" + "\t\tnomtrr:disable MTRR attribute for video memory\n" + "\t\tdualview:dual frame buffer feature enabled\n" + "\t\tnohwc:disable hardware cursor\n" + "\t\tUsual example:\n" + "\t\tinsmod ./sm750fb.ko g_option=\"noaccel,nohwc,1280x1024-8@60\"\n" + ); + +MODULE_AUTHOR("monk liu <monk.liu@siliconmotion.com>"); +MODULE_AUTHOR("Sudip Mukherjee <sudip@vectorindia.org>"); +MODULE_DESCRIPTION("Frame buffer driver for SM750 chipset"); +MODULE_LICENSE("Dual BSD/GPL"); |