| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| David S. Miller | 1350 | 56.16% | 7 | 18.92% |
| Linus Torvalds (pre-git) | 762 | 31.70% | 3 | 8.11% |
| Art Haas | 81 | 3.37% | 1 | 2.70% |
| Tom 'spot' Callaway | 78 | 3.24% | 1 | 2.70% |
| Krzysztof Helt | 56 | 2.33% | 1 | 2.70% |
| Christoph Hellwig | 15 | 0.62% | 2 | 5.41% |
| Robert Reif | 13 | 0.54% | 5 | 13.51% |
| Grant C. Likely | 12 | 0.50% | 3 | 8.11% |
| Al Viro | 8 | 0.33% | 2 | 5.41% |
| Axel Lin | 5 | 0.21% | 1 | 2.70% |
| Linus Torvalds | 5 | 0.21% | 1 | 2.70% |
| Antonino A. Daplas | 5 | 0.21% | 2 | 5.41% |
| Rob Radez | 3 | 0.12% | 1 | 2.70% |
| Anatolij Gustschin | 3 | 0.12% | 1 | 2.70% |
| James Simmons | 3 | 0.12% | 1 | 2.70% |
| Benjamin Collins | 1 | 0.04% | 1 | 2.70% |
| Hareesh Nagarajan | 1 | 0.04% | 1 | 2.70% |
| Rob Herring | 1 | 0.04% | 1 | 2.70% |
| Jani Nikula | 1 | 0.04% | 1 | 2.70% |
| Thomas Gleixner | 1 | 0.04% | 1 | 2.70% |
| Total | 2404 | 37 |
// SPDX-License-Identifier: GPL-2.0-only /* tcx.c: TCX frame buffer driver * * Copyright (C) 2003, 2006 David S. Miller (davem@davemloft.net) * Copyright (C) 1996,1998 Jakub Jelinek (jj@ultra.linux.cz) * Copyright (C) 1996 Miguel de Icaza (miguel@nuclecu.unam.mx) * Copyright (C) 1996 Eddie C. Dost (ecd@skynet.be) * * Driver layout based loosely on tgafb.c, see that file for credits. */ #include <linux/module.h> #include <linux/kernel.h> #include <linux/errno.h> #include <linux/string.h> #include <linux/delay.h> #include <linux/init.h> #include <linux/fb.h> #include <linux/mm.h> #include <linux/of_device.h> #include <asm/io.h> #include <asm/fbio.h> #include "sbuslib.h" /* * Local functions. */ static int tcx_setcolreg(unsigned, unsigned, unsigned, unsigned, unsigned, struct fb_info *); static int tcx_blank(int, struct fb_info *); static int tcx_mmap(struct fb_info *, struct vm_area_struct *); static int tcx_ioctl(struct fb_info *, unsigned int, unsigned long); static int tcx_pan_display(struct fb_var_screeninfo *, struct fb_info *); /* * Frame buffer operations */ static const struct fb_ops tcx_ops = { .owner = THIS_MODULE, .fb_setcolreg = tcx_setcolreg, .fb_blank = tcx_blank, .fb_pan_display = tcx_pan_display, .fb_fillrect = cfb_fillrect, .fb_copyarea = cfb_copyarea, .fb_imageblit = cfb_imageblit, .fb_mmap = tcx_mmap, .fb_ioctl = tcx_ioctl, #ifdef CONFIG_COMPAT .fb_compat_ioctl = sbusfb_compat_ioctl, #endif }; /* THC definitions */ #define TCX_THC_MISC_REV_SHIFT 16 #define TCX_THC_MISC_REV_MASK 15 #define TCX_THC_MISC_VSYNC_DIS (1 << 25) #define TCX_THC_MISC_HSYNC_DIS (1 << 24) #define TCX_THC_MISC_RESET (1 << 12) #define TCX_THC_MISC_VIDEO (1 << 10) #define TCX_THC_MISC_SYNC (1 << 9) #define TCX_THC_MISC_VSYNC (1 << 8) #define TCX_THC_MISC_SYNC_ENAB (1 << 7) #define TCX_THC_MISC_CURS_RES (1 << 6) #define TCX_THC_MISC_INT_ENAB (1 << 5) #define TCX_THC_MISC_INT (1 << 4) #define TCX_THC_MISC_INIT 0x9f #define TCX_THC_REV_REV_SHIFT 20 #define TCX_THC_REV_REV_MASK 15 #define TCX_THC_REV_MINREV_SHIFT 28 #define TCX_THC_REV_MINREV_MASK 15 /* The contents are unknown */ struct tcx_tec { u32 tec_matrix; u32 tec_clip; u32 tec_vdc; }; struct tcx_thc { u32 thc_rev; u32 thc_pad0[511]; u32 thc_hs; /* hsync timing */ u32 thc_hsdvs; u32 thc_hd; u32 thc_vs; /* vsync timing */ u32 thc_vd; u32 thc_refresh; u32 thc_misc; u32 thc_pad1[56]; u32 thc_cursxy; /* cursor x,y position (16 bits each) */ u32 thc_cursmask[32]; /* cursor mask bits */ u32 thc_cursbits[32]; /* what to show where mask enabled */ }; struct bt_regs { u32 addr; u32 color_map; u32 control; u32 cursor; }; #define TCX_MMAP_ENTRIES 14 struct tcx_par { spinlock_t lock; struct bt_regs __iomem *bt; struct tcx_thc __iomem *thc; struct tcx_tec __iomem *tec; u32 __iomem *cplane; u32 flags; #define TCX_FLAG_BLANKED 0x00000001 unsigned long which_io; struct sbus_mmap_map mmap_map[TCX_MMAP_ENTRIES]; int lowdepth; }; /* Reset control plane so that WID is 8-bit plane. */ static void __tcx_set_control_plane(struct fb_info *info) { struct tcx_par *par = info->par; u32 __iomem *p, *pend; if (par->lowdepth) return; p = par->cplane; if (p == NULL) return; for (pend = p + info->fix.smem_len; p < pend; p++) { u32 tmp = sbus_readl(p); tmp &= 0xffffff; sbus_writel(tmp, p); } } static void tcx_reset(struct fb_info *info) { struct tcx_par *par = (struct tcx_par *) info->par; unsigned long flags; spin_lock_irqsave(&par->lock, flags); __tcx_set_control_plane(info); spin_unlock_irqrestore(&par->lock, flags); } static int tcx_pan_display(struct fb_var_screeninfo *var, struct fb_info *info) { tcx_reset(info); return 0; } /** * tcx_setcolreg - Optional function. Sets a color register. * @regno: boolean, 0 copy local, 1 get_user() function * @red: frame buffer colormap structure * @green: The green value which can be up to 16 bits wide * @blue: The blue value which can be up to 16 bits wide. * @transp: If supported the alpha value which can be up to 16 bits wide. * @info: frame buffer info structure */ static int tcx_setcolreg(unsigned regno, unsigned red, unsigned green, unsigned blue, unsigned transp, struct fb_info *info) { struct tcx_par *par = (struct tcx_par *) info->par; struct bt_regs __iomem *bt = par->bt; unsigned long flags; if (regno >= 256) return 1; red >>= 8; green >>= 8; blue >>= 8; spin_lock_irqsave(&par->lock, flags); sbus_writel(regno << 24, &bt->addr); sbus_writel(red << 24, &bt->color_map); sbus_writel(green << 24, &bt->color_map); sbus_writel(blue << 24, &bt->color_map); spin_unlock_irqrestore(&par->lock, flags); return 0; } /** * tcx_blank - Optional function. Blanks the display. * @blank_mode: the blank mode we want. * @info: frame buffer structure that represents a single frame buffer */ static int tcx_blank(int blank, struct fb_info *info) { struct tcx_par *par = (struct tcx_par *) info->par; struct tcx_thc __iomem *thc = par->thc; unsigned long flags; u32 val; spin_lock_irqsave(&par->lock, flags); val = sbus_readl(&thc->thc_misc); switch (blank) { case FB_BLANK_UNBLANK: /* Unblanking */ val &= ~(TCX_THC_MISC_VSYNC_DIS | TCX_THC_MISC_HSYNC_DIS); val |= TCX_THC_MISC_VIDEO; par->flags &= ~TCX_FLAG_BLANKED; break; case FB_BLANK_NORMAL: /* Normal blanking */ val &= ~TCX_THC_MISC_VIDEO; par->flags |= TCX_FLAG_BLANKED; break; case FB_BLANK_VSYNC_SUSPEND: /* VESA blank (vsync off) */ val |= TCX_THC_MISC_VSYNC_DIS; break; case FB_BLANK_HSYNC_SUSPEND: /* VESA blank (hsync off) */ val |= TCX_THC_MISC_HSYNC_DIS; break; case FB_BLANK_POWERDOWN: /* Poweroff */ break; } sbus_writel(val, &thc->thc_misc); spin_unlock_irqrestore(&par->lock, flags); return 0; } static struct sbus_mmap_map __tcx_mmap_map[TCX_MMAP_ENTRIES] = { { .voff = TCX_RAM8BIT, .size = SBUS_MMAP_FBSIZE(1) }, { .voff = TCX_RAM24BIT, .size = SBUS_MMAP_FBSIZE(4) }, { .voff = TCX_UNK3, .size = SBUS_MMAP_FBSIZE(8) }, { .voff = TCX_UNK4, .size = SBUS_MMAP_FBSIZE(8) }, { .voff = TCX_CONTROLPLANE, .size = SBUS_MMAP_FBSIZE(4) }, { .voff = TCX_UNK6, .size = SBUS_MMAP_FBSIZE(8) }, { .voff = TCX_UNK7, .size = SBUS_MMAP_FBSIZE(8) }, { .voff = TCX_TEC, .size = PAGE_SIZE }, { .voff = TCX_BTREGS, .size = PAGE_SIZE }, { .voff = TCX_THC, .size = PAGE_SIZE }, { .voff = TCX_DHC, .size = PAGE_SIZE }, { .voff = TCX_ALT, .size = PAGE_SIZE }, { .voff = TCX_UNK2, .size = 0x20000 }, { .size = 0 } }; static int tcx_mmap(struct fb_info *info, struct vm_area_struct *vma) { struct tcx_par *par = (struct tcx_par *)info->par; return sbusfb_mmap_helper(par->mmap_map, info->fix.smem_start, info->fix.smem_len, par->which_io, vma); } static int tcx_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg) { struct tcx_par *par = (struct tcx_par *) info->par; return sbusfb_ioctl_helper(cmd, arg, info, FBTYPE_TCXCOLOR, (par->lowdepth ? 8 : 24), info->fix.smem_len); } /* * Initialisation */ static void tcx_init_fix(struct fb_info *info, int linebytes) { struct tcx_par *par = (struct tcx_par *)info->par; const char *tcx_name; if (par->lowdepth) tcx_name = "TCX8"; else tcx_name = "TCX24"; strlcpy(info->fix.id, tcx_name, sizeof(info->fix.id)); info->fix.type = FB_TYPE_PACKED_PIXELS; info->fix.visual = FB_VISUAL_PSEUDOCOLOR; info->fix.line_length = linebytes; info->fix.accel = FB_ACCEL_SUN_TCX; } static void tcx_unmap_regs(struct platform_device *op, struct fb_info *info, struct tcx_par *par) { if (par->tec) of_iounmap(&op->resource[7], par->tec, sizeof(struct tcx_tec)); if (par->thc) of_iounmap(&op->resource[9], par->thc, sizeof(struct tcx_thc)); if (par->bt) of_iounmap(&op->resource[8], par->bt, sizeof(struct bt_regs)); if (par->cplane) of_iounmap(&op->resource[4], par->cplane, info->fix.smem_len * sizeof(u32)); if (info->screen_base) of_iounmap(&op->resource[0], info->screen_base, info->fix.smem_len); } static int tcx_probe(struct platform_device *op) { struct device_node *dp = op->dev.of_node; struct fb_info *info; struct tcx_par *par; int linebytes, i, err; info = framebuffer_alloc(sizeof(struct tcx_par), &op->dev); err = -ENOMEM; if (!info) goto out_err; par = info->par; spin_lock_init(&par->lock); par->lowdepth = (of_find_property(dp, "tcx-8-bit", NULL) != NULL); sbusfb_fill_var(&info->var, dp, 8); info->var.red.length = 8; info->var.green.length = 8; info->var.blue.length = 8; linebytes = of_getintprop_default(dp, "linebytes", info->var.xres); info->fix.smem_len = PAGE_ALIGN(linebytes * info->var.yres); par->tec = of_ioremap(&op->resource[7], 0, sizeof(struct tcx_tec), "tcx tec"); par->thc = of_ioremap(&op->resource[9], 0, sizeof(struct tcx_thc), "tcx thc"); par->bt = of_ioremap(&op->resource[8], 0, sizeof(struct bt_regs), "tcx dac"); info->screen_base = of_ioremap(&op->resource[0], 0, info->fix.smem_len, "tcx ram"); if (!par->tec || !par->thc || !par->bt || !info->screen_base) goto out_unmap_regs; memcpy(&par->mmap_map, &__tcx_mmap_map, sizeof(par->mmap_map)); if (!par->lowdepth) { par->cplane = of_ioremap(&op->resource[4], 0, info->fix.smem_len * sizeof(u32), "tcx cplane"); if (!par->cplane) goto out_unmap_regs; } else { par->mmap_map[1].size = SBUS_MMAP_EMPTY; par->mmap_map[4].size = SBUS_MMAP_EMPTY; par->mmap_map[5].size = SBUS_MMAP_EMPTY; par->mmap_map[6].size = SBUS_MMAP_EMPTY; } info->fix.smem_start = op->resource[0].start; par->which_io = op->resource[0].flags & IORESOURCE_BITS; for (i = 0; i < TCX_MMAP_ENTRIES; i++) { int j; switch (i) { case 10: j = 12; break; case 11: case 12: j = i - 1; break; default: j = i; break; } par->mmap_map[i].poff = op->resource[j].start; } info->flags = FBINFO_DEFAULT; info->fbops = &tcx_ops; /* Initialize brooktree DAC. */ sbus_writel(0x04 << 24, &par->bt->addr); /* color planes */ sbus_writel(0xff << 24, &par->bt->control); sbus_writel(0x05 << 24, &par->bt->addr); sbus_writel(0x00 << 24, &par->bt->control); sbus_writel(0x06 << 24, &par->bt->addr); /* overlay plane */ sbus_writel(0x73 << 24, &par->bt->control); sbus_writel(0x07 << 24, &par->bt->addr); sbus_writel(0x00 << 24, &par->bt->control); tcx_reset(info); tcx_blank(FB_BLANK_UNBLANK, info); if (fb_alloc_cmap(&info->cmap, 256, 0)) goto out_unmap_regs; fb_set_cmap(&info->cmap, info); tcx_init_fix(info, linebytes); err = register_framebuffer(info); if (err < 0) goto out_dealloc_cmap; dev_set_drvdata(&op->dev, info); printk(KERN_INFO "%pOF: TCX at %lx:%lx, %s\n", dp, par->which_io, info->fix.smem_start, par->lowdepth ? "8-bit only" : "24-bit depth"); return 0; out_dealloc_cmap: fb_dealloc_cmap(&info->cmap); out_unmap_regs: tcx_unmap_regs(op, info, par); framebuffer_release(info); out_err: return err; } static int tcx_remove(struct platform_device *op) { struct fb_info *info = dev_get_drvdata(&op->dev); struct tcx_par *par = info->par; unregister_framebuffer(info); fb_dealloc_cmap(&info->cmap); tcx_unmap_regs(op, info, par); framebuffer_release(info); return 0; } static const struct of_device_id tcx_match[] = { { .name = "SUNW,tcx", }, {}, }; MODULE_DEVICE_TABLE(of, tcx_match); static struct platform_driver tcx_driver = { .driver = { .name = "tcx", .of_match_table = tcx_match, }, .probe = tcx_probe, .remove = tcx_remove, }; static int __init tcx_init(void) { if (fb_get_options("tcxfb", NULL)) return -ENODEV; return platform_driver_register(&tcx_driver); } static void __exit tcx_exit(void) { platform_driver_unregister(&tcx_driver); } module_init(tcx_init); module_exit(tcx_exit); MODULE_DESCRIPTION("framebuffer driver for TCX chipsets"); MODULE_AUTHOR("David S. Miller <davem@davemloft.net>"); MODULE_VERSION("2.0"); MODULE_LICENSE("GPL");
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