forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
691 lines
15 KiB
691 lines
15 KiB
// SPDX-License-Identifier: GPL-2.0-only |
|
/* leo.c: LEO frame buffer driver |
|
* |
|
* Copyright (C) 2003, 2006 David S. Miller ([email protected]) |
|
* Copyright (C) 1996-1999 Jakub Jelinek ([email protected]) |
|
* Copyright (C) 1997 Michal Rehacek ([email protected]) |
|
* |
|
* 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 <linux/io.h> |
|
|
|
#include <asm/fbio.h> |
|
|
|
#include "sbuslib.h" |
|
|
|
/* |
|
* Local functions. |
|
*/ |
|
|
|
static int leo_setcolreg(unsigned, unsigned, unsigned, unsigned, |
|
unsigned, struct fb_info *); |
|
static int leo_blank(int, struct fb_info *); |
|
|
|
static int leo_mmap(struct fb_info *, struct vm_area_struct *); |
|
static int leo_ioctl(struct fb_info *, unsigned int, unsigned long); |
|
static int leo_pan_display(struct fb_var_screeninfo *, struct fb_info *); |
|
|
|
/* |
|
* Frame buffer operations |
|
*/ |
|
|
|
static const struct fb_ops leo_ops = { |
|
.owner = THIS_MODULE, |
|
.fb_setcolreg = leo_setcolreg, |
|
.fb_blank = leo_blank, |
|
.fb_pan_display = leo_pan_display, |
|
.fb_fillrect = cfb_fillrect, |
|
.fb_copyarea = cfb_copyarea, |
|
.fb_imageblit = cfb_imageblit, |
|
.fb_mmap = leo_mmap, |
|
.fb_ioctl = leo_ioctl, |
|
#ifdef CONFIG_COMPAT |
|
.fb_compat_ioctl = sbusfb_compat_ioctl, |
|
#endif |
|
}; |
|
|
|
#define LEO_OFF_LC_SS0_KRN 0x00200000UL |
|
#define LEO_OFF_LC_SS0_USR 0x00201000UL |
|
#define LEO_OFF_LC_SS1_KRN 0x01200000UL |
|
#define LEO_OFF_LC_SS1_USR 0x01201000UL |
|
#define LEO_OFF_LD_SS0 0x00400000UL |
|
#define LEO_OFF_LD_SS1 0x01400000UL |
|
#define LEO_OFF_LD_GBL 0x00401000UL |
|
#define LEO_OFF_LX_KRN 0x00600000UL |
|
#define LEO_OFF_LX_CURSOR 0x00601000UL |
|
#define LEO_OFF_SS0 0x00800000UL |
|
#define LEO_OFF_SS1 0x01800000UL |
|
#define LEO_OFF_UNK 0x00602000UL |
|
#define LEO_OFF_UNK2 0x00000000UL |
|
|
|
#define LEO_CUR_ENABLE 0x00000080 |
|
#define LEO_CUR_UPDATE 0x00000030 |
|
#define LEO_CUR_PROGRESS 0x00000006 |
|
#define LEO_CUR_UPDATECMAP 0x00000003 |
|
|
|
#define LEO_CUR_TYPE_MASK 0x00000000 |
|
#define LEO_CUR_TYPE_IMAGE 0x00000020 |
|
#define LEO_CUR_TYPE_CMAP 0x00000050 |
|
|
|
struct leo_cursor { |
|
u8 xxx0[16]; |
|
u32 cur_type; |
|
u32 cur_misc; |
|
u32 cur_cursxy; |
|
u32 cur_data; |
|
}; |
|
|
|
#define LEO_KRN_TYPE_CLUT0 0x00001000 |
|
#define LEO_KRN_TYPE_CLUT1 0x00001001 |
|
#define LEO_KRN_TYPE_CLUT2 0x00001002 |
|
#define LEO_KRN_TYPE_WID 0x00001003 |
|
#define LEO_KRN_TYPE_UNK 0x00001006 |
|
#define LEO_KRN_TYPE_VIDEO 0x00002003 |
|
#define LEO_KRN_TYPE_CLUTDATA 0x00004000 |
|
#define LEO_KRN_CSR_ENABLE 0x00000008 |
|
#define LEO_KRN_CSR_PROGRESS 0x00000004 |
|
#define LEO_KRN_CSR_UNK 0x00000002 |
|
#define LEO_KRN_CSR_UNK2 0x00000001 |
|
|
|
struct leo_lx_krn { |
|
u32 krn_type; |
|
u32 krn_csr; |
|
u32 krn_value; |
|
}; |
|
|
|
struct leo_lc_ss0_krn { |
|
u32 misc; |
|
u8 xxx0[0x800-4]; |
|
u32 rev; |
|
}; |
|
|
|
struct leo_lc_ss0_usr { |
|
u32 csr; |
|
u32 addrspace; |
|
u32 fontmsk; |
|
u32 fontt; |
|
u32 extent; |
|
u32 src; |
|
u32 dst; |
|
u32 copy; |
|
u32 fill; |
|
}; |
|
|
|
struct leo_lc_ss1_krn { |
|
u8 unknown; |
|
}; |
|
|
|
struct leo_lc_ss1_usr { |
|
u8 unknown; |
|
}; |
|
|
|
struct leo_ld_ss0 { |
|
u8 xxx0[0xe00]; |
|
u32 csr; |
|
u32 wid; |
|
u32 wmask; |
|
u32 widclip; |
|
u32 vclipmin; |
|
u32 vclipmax; |
|
u32 pickmin; /* SS1 only */ |
|
u32 pickmax; /* SS1 only */ |
|
u32 fg; |
|
u32 bg; |
|
u32 src; /* Copy/Scroll (SS0 only) */ |
|
u32 dst; /* Copy/Scroll/Fill (SS0 only) */ |
|
u32 extent; /* Copy/Scroll/Fill size (SS0 only) */ |
|
u32 xxx1[3]; |
|
u32 setsem; /* SS1 only */ |
|
u32 clrsem; /* SS1 only */ |
|
u32 clrpick; /* SS1 only */ |
|
u32 clrdat; /* SS1 only */ |
|
u32 alpha; /* SS1 only */ |
|
u8 xxx2[0x2c]; |
|
u32 winbg; |
|
u32 planemask; |
|
u32 rop; |
|
u32 z; |
|
u32 dczf; /* SS1 only */ |
|
u32 dczb; /* SS1 only */ |
|
u32 dcs; /* SS1 only */ |
|
u32 dczs; /* SS1 only */ |
|
u32 pickfb; /* SS1 only */ |
|
u32 pickbb; /* SS1 only */ |
|
u32 dcfc; /* SS1 only */ |
|
u32 forcecol; /* SS1 only */ |
|
u32 door[8]; /* SS1 only */ |
|
u32 pick[5]; /* SS1 only */ |
|
}; |
|
|
|
#define LEO_SS1_MISC_ENABLE 0x00000001 |
|
#define LEO_SS1_MISC_STEREO 0x00000002 |
|
struct leo_ld_ss1 { |
|
u8 xxx0[0xef4]; |
|
u32 ss1_misc; |
|
}; |
|
|
|
struct leo_ld_gbl { |
|
u8 unknown; |
|
}; |
|
|
|
struct leo_par { |
|
spinlock_t lock; |
|
struct leo_lx_krn __iomem *lx_krn; |
|
struct leo_lc_ss0_usr __iomem *lc_ss0_usr; |
|
struct leo_ld_ss0 __iomem *ld_ss0; |
|
struct leo_ld_ss1 __iomem *ld_ss1; |
|
struct leo_cursor __iomem *cursor; |
|
u32 extent; |
|
u32 clut_data[256]; |
|
|
|
u32 flags; |
|
#define LEO_FLAG_BLANKED 0x00000001 |
|
|
|
unsigned long which_io; |
|
}; |
|
|
|
static void leo_wait(struct leo_lx_krn __iomem *lx_krn) |
|
{ |
|
int i; |
|
|
|
for (i = 0; |
|
(sbus_readl(&lx_krn->krn_csr) & LEO_KRN_CSR_PROGRESS) && |
|
i < 300000; |
|
i++) |
|
udelay(1); /* Busy wait at most 0.3 sec */ |
|
return; |
|
} |
|
|
|
static void leo_switch_from_graph(struct fb_info *info) |
|
{ |
|
struct leo_par *par = (struct leo_par *) info->par; |
|
struct leo_ld_ss0 __iomem *ss = par->ld_ss0; |
|
struct leo_cursor __iomem *cursor = par->cursor; |
|
unsigned long flags; |
|
u32 val; |
|
|
|
spin_lock_irqsave(&par->lock, flags); |
|
|
|
par->extent = ((info->var.xres - 1) | |
|
((info->var.yres - 1) << 16)); |
|
|
|
sbus_writel(0xffffffff, &ss->wid); |
|
sbus_writel(0xffff, &ss->wmask); |
|
sbus_writel(0, &ss->vclipmin); |
|
sbus_writel(par->extent, &ss->vclipmax); |
|
sbus_writel(0, &ss->fg); |
|
sbus_writel(0xff000000, &ss->planemask); |
|
sbus_writel(0x310850, &ss->rop); |
|
sbus_writel(0, &ss->widclip); |
|
sbus_writel((info->var.xres-1) | ((info->var.yres-1) << 11), |
|
&par->lc_ss0_usr->extent); |
|
sbus_writel(4, &par->lc_ss0_usr->addrspace); |
|
sbus_writel(0x80000000, &par->lc_ss0_usr->fill); |
|
sbus_writel(0, &par->lc_ss0_usr->fontt); |
|
do { |
|
val = sbus_readl(&par->lc_ss0_usr->csr); |
|
} while (val & 0x20000000); |
|
|
|
/* setup screen buffer for cfb_* functions */ |
|
sbus_writel(1, &ss->wid); |
|
sbus_writel(0x00ffffff, &ss->planemask); |
|
sbus_writel(0x310b90, &ss->rop); |
|
sbus_writel(0, &par->lc_ss0_usr->addrspace); |
|
|
|
/* hide cursor */ |
|
sbus_writel(sbus_readl(&cursor->cur_misc) & ~LEO_CUR_ENABLE, &cursor->cur_misc); |
|
|
|
spin_unlock_irqrestore(&par->lock, flags); |
|
} |
|
|
|
static int leo_pan_display(struct fb_var_screeninfo *var, struct fb_info *info) |
|
{ |
|
/* We just use this to catch switches out of |
|
* graphics mode. |
|
*/ |
|
leo_switch_from_graph(info); |
|
|
|
if (var->xoffset || var->yoffset || var->vmode) |
|
return -EINVAL; |
|
return 0; |
|
} |
|
|
|
/** |
|
* leo_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 leo_setcolreg(unsigned regno, |
|
unsigned red, unsigned green, unsigned blue, |
|
unsigned transp, struct fb_info *info) |
|
{ |
|
struct leo_par *par = (struct leo_par *) info->par; |
|
struct leo_lx_krn __iomem *lx_krn = par->lx_krn; |
|
unsigned long flags; |
|
u32 val; |
|
int i; |
|
|
|
if (regno >= 256) |
|
return 1; |
|
|
|
red >>= 8; |
|
green >>= 8; |
|
blue >>= 8; |
|
|
|
par->clut_data[regno] = red | (green << 8) | (blue << 16); |
|
|
|
spin_lock_irqsave(&par->lock, flags); |
|
|
|
leo_wait(lx_krn); |
|
|
|
sbus_writel(LEO_KRN_TYPE_CLUTDATA, &lx_krn->krn_type); |
|
for (i = 0; i < 256; i++) |
|
sbus_writel(par->clut_data[i], &lx_krn->krn_value); |
|
sbus_writel(LEO_KRN_TYPE_CLUT0, &lx_krn->krn_type); |
|
|
|
val = sbus_readl(&lx_krn->krn_csr); |
|
val |= (LEO_KRN_CSR_UNK | LEO_KRN_CSR_UNK2); |
|
sbus_writel(val, &lx_krn->krn_csr); |
|
|
|
spin_unlock_irqrestore(&par->lock, flags); |
|
|
|
return 0; |
|
} |
|
|
|
/** |
|
* leo_blank - Optional function. Blanks the display. |
|
* @blank: the blank mode we want. |
|
* @info: frame buffer structure that represents a single frame buffer |
|
*/ |
|
static int leo_blank(int blank, struct fb_info *info) |
|
{ |
|
struct leo_par *par = (struct leo_par *) info->par; |
|
struct leo_lx_krn __iomem *lx_krn = par->lx_krn; |
|
unsigned long flags; |
|
u32 val; |
|
|
|
spin_lock_irqsave(&par->lock, flags); |
|
|
|
switch (blank) { |
|
case FB_BLANK_UNBLANK: /* Unblanking */ |
|
val = sbus_readl(&lx_krn->krn_csr); |
|
val |= LEO_KRN_CSR_ENABLE; |
|
sbus_writel(val, &lx_krn->krn_csr); |
|
par->flags &= ~LEO_FLAG_BLANKED; |
|
break; |
|
|
|
case FB_BLANK_NORMAL: /* Normal blanking */ |
|
case FB_BLANK_VSYNC_SUSPEND: /* VESA blank (vsync off) */ |
|
case FB_BLANK_HSYNC_SUSPEND: /* VESA blank (hsync off) */ |
|
case FB_BLANK_POWERDOWN: /* Poweroff */ |
|
val = sbus_readl(&lx_krn->krn_csr); |
|
val &= ~LEO_KRN_CSR_ENABLE; |
|
sbus_writel(val, &lx_krn->krn_csr); |
|
par->flags |= LEO_FLAG_BLANKED; |
|
break; |
|
} |
|
|
|
spin_unlock_irqrestore(&par->lock, flags); |
|
|
|
return 0; |
|
} |
|
|
|
static struct sbus_mmap_map leo_mmap_map[] = { |
|
{ |
|
.voff = LEO_SS0_MAP, |
|
.poff = LEO_OFF_SS0, |
|
.size = 0x800000 |
|
}, |
|
{ |
|
.voff = LEO_LC_SS0_USR_MAP, |
|
.poff = LEO_OFF_LC_SS0_USR, |
|
.size = 0x1000 |
|
}, |
|
{ |
|
.voff = LEO_LD_SS0_MAP, |
|
.poff = LEO_OFF_LD_SS0, |
|
.size = 0x1000 |
|
}, |
|
{ |
|
.voff = LEO_LX_CURSOR_MAP, |
|
.poff = LEO_OFF_LX_CURSOR, |
|
.size = 0x1000 |
|
}, |
|
{ |
|
.voff = LEO_SS1_MAP, |
|
.poff = LEO_OFF_SS1, |
|
.size = 0x800000 |
|
}, |
|
{ |
|
.voff = LEO_LC_SS1_USR_MAP, |
|
.poff = LEO_OFF_LC_SS1_USR, |
|
.size = 0x1000 |
|
}, |
|
{ |
|
.voff = LEO_LD_SS1_MAP, |
|
.poff = LEO_OFF_LD_SS1, |
|
.size = 0x1000 |
|
}, |
|
{ |
|
.voff = LEO_UNK_MAP, |
|
.poff = LEO_OFF_UNK, |
|
.size = 0x1000 |
|
}, |
|
{ |
|
.voff = LEO_LX_KRN_MAP, |
|
.poff = LEO_OFF_LX_KRN, |
|
.size = 0x1000 |
|
}, |
|
{ |
|
.voff = LEO_LC_SS0_KRN_MAP, |
|
.poff = LEO_OFF_LC_SS0_KRN, |
|
.size = 0x1000 |
|
}, |
|
{ |
|
.voff = LEO_LC_SS1_KRN_MAP, |
|
.poff = LEO_OFF_LC_SS1_KRN, |
|
.size = 0x1000 |
|
}, |
|
{ |
|
.voff = LEO_LD_GBL_MAP, |
|
.poff = LEO_OFF_LD_GBL, |
|
.size = 0x1000 |
|
}, |
|
{ |
|
.voff = LEO_UNK2_MAP, |
|
.poff = LEO_OFF_UNK2, |
|
.size = 0x100000 |
|
}, |
|
{ .size = 0 } |
|
}; |
|
|
|
static int leo_mmap(struct fb_info *info, struct vm_area_struct *vma) |
|
{ |
|
struct leo_par *par = (struct leo_par *)info->par; |
|
|
|
return sbusfb_mmap_helper(leo_mmap_map, |
|
info->fix.smem_start, info->fix.smem_len, |
|
par->which_io, vma); |
|
} |
|
|
|
static int leo_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg) |
|
{ |
|
return sbusfb_ioctl_helper(cmd, arg, info, |
|
FBTYPE_SUNLEO, 32, info->fix.smem_len); |
|
} |
|
|
|
/* |
|
* Initialisation |
|
*/ |
|
|
|
static void |
|
leo_init_fix(struct fb_info *info, struct device_node *dp) |
|
{ |
|
snprintf(info->fix.id, sizeof(info->fix.id), "%pOFn", dp); |
|
|
|
info->fix.type = FB_TYPE_PACKED_PIXELS; |
|
info->fix.visual = FB_VISUAL_TRUECOLOR; |
|
|
|
info->fix.line_length = 8192; |
|
|
|
info->fix.accel = FB_ACCEL_SUN_LEO; |
|
} |
|
|
|
static void leo_wid_put(struct fb_info *info, struct fb_wid_list *wl) |
|
{ |
|
struct leo_par *par = (struct leo_par *) info->par; |
|
struct leo_lx_krn __iomem *lx_krn = par->lx_krn; |
|
struct fb_wid_item *wi; |
|
unsigned long flags; |
|
u32 val; |
|
int i, j; |
|
|
|
spin_lock_irqsave(&par->lock, flags); |
|
|
|
leo_wait(lx_krn); |
|
|
|
for (i = 0, wi = wl->wl_list; i < wl->wl_count; i++, wi++) { |
|
switch (wi->wi_type) { |
|
case FB_WID_DBL_8: |
|
j = (wi->wi_index & 0xf) + 0x40; |
|
break; |
|
|
|
case FB_WID_DBL_24: |
|
j = wi->wi_index & 0x3f; |
|
break; |
|
|
|
default: |
|
continue; |
|
} |
|
sbus_writel(0x5800 + j, &lx_krn->krn_type); |
|
sbus_writel(wi->wi_values[0], &lx_krn->krn_value); |
|
} |
|
sbus_writel(LEO_KRN_TYPE_WID, &lx_krn->krn_type); |
|
|
|
val = sbus_readl(&lx_krn->krn_csr); |
|
val |= (LEO_KRN_CSR_UNK | LEO_KRN_CSR_UNK2); |
|
sbus_writel(val, &lx_krn->krn_csr); |
|
|
|
spin_unlock_irqrestore(&par->lock, flags); |
|
} |
|
|
|
static void leo_init_wids(struct fb_info *info) |
|
{ |
|
struct fb_wid_item wi; |
|
struct fb_wid_list wl; |
|
|
|
wl.wl_count = 1; |
|
wl.wl_list = &wi; |
|
wi.wi_type = FB_WID_DBL_8; |
|
wi.wi_index = 0; |
|
wi.wi_values [0] = 0x2c0; |
|
leo_wid_put(info, &wl); |
|
wi.wi_index = 1; |
|
wi.wi_values [0] = 0x30; |
|
leo_wid_put(info, &wl); |
|
wi.wi_index = 2; |
|
wi.wi_values [0] = 0x20; |
|
leo_wid_put(info, &wl); |
|
wi.wi_type = FB_WID_DBL_24; |
|
wi.wi_index = 1; |
|
wi.wi_values [0] = 0x30; |
|
leo_wid_put(info, &wl); |
|
} |
|
|
|
static void leo_init_hw(struct fb_info *info) |
|
{ |
|
struct leo_par *par = (struct leo_par *) info->par; |
|
u32 val; |
|
|
|
val = sbus_readl(&par->ld_ss1->ss1_misc); |
|
val |= LEO_SS1_MISC_ENABLE; |
|
sbus_writel(val, &par->ld_ss1->ss1_misc); |
|
|
|
leo_switch_from_graph(info); |
|
} |
|
|
|
static void leo_fixup_var_rgb(struct fb_var_screeninfo *var) |
|
{ |
|
var->red.offset = 0; |
|
var->red.length = 8; |
|
var->green.offset = 8; |
|
var->green.length = 8; |
|
var->blue.offset = 16; |
|
var->blue.length = 8; |
|
var->transp.offset = 0; |
|
var->transp.length = 0; |
|
} |
|
|
|
static void leo_unmap_regs(struct platform_device *op, struct fb_info *info, |
|
struct leo_par *par) |
|
{ |
|
if (par->lc_ss0_usr) |
|
of_iounmap(&op->resource[0], par->lc_ss0_usr, 0x1000); |
|
if (par->ld_ss0) |
|
of_iounmap(&op->resource[0], par->ld_ss0, 0x1000); |
|
if (par->ld_ss1) |
|
of_iounmap(&op->resource[0], par->ld_ss1, 0x1000); |
|
if (par->lx_krn) |
|
of_iounmap(&op->resource[0], par->lx_krn, 0x1000); |
|
if (par->cursor) |
|
of_iounmap(&op->resource[0], |
|
par->cursor, sizeof(struct leo_cursor)); |
|
if (info->screen_base) |
|
of_iounmap(&op->resource[0], info->screen_base, 0x800000); |
|
} |
|
|
|
static int leo_probe(struct platform_device *op) |
|
{ |
|
struct device_node *dp = op->dev.of_node; |
|
struct fb_info *info; |
|
struct leo_par *par; |
|
int linebytes, err; |
|
|
|
info = framebuffer_alloc(sizeof(struct leo_par), &op->dev); |
|
|
|
err = -ENOMEM; |
|
if (!info) |
|
goto out_err; |
|
par = info->par; |
|
|
|
spin_lock_init(&par->lock); |
|
|
|
info->fix.smem_start = op->resource[0].start; |
|
par->which_io = op->resource[0].flags & IORESOURCE_BITS; |
|
|
|
sbusfb_fill_var(&info->var, dp, 32); |
|
leo_fixup_var_rgb(&info->var); |
|
|
|
linebytes = of_getintprop_default(dp, "linebytes", |
|
info->var.xres); |
|
info->fix.smem_len = PAGE_ALIGN(linebytes * info->var.yres); |
|
|
|
par->lc_ss0_usr = |
|
of_ioremap(&op->resource[0], LEO_OFF_LC_SS0_USR, |
|
0x1000, "leolc ss0usr"); |
|
par->ld_ss0 = |
|
of_ioremap(&op->resource[0], LEO_OFF_LD_SS0, |
|
0x1000, "leold ss0"); |
|
par->ld_ss1 = |
|
of_ioremap(&op->resource[0], LEO_OFF_LD_SS1, |
|
0x1000, "leold ss1"); |
|
par->lx_krn = |
|
of_ioremap(&op->resource[0], LEO_OFF_LX_KRN, |
|
0x1000, "leolx krn"); |
|
par->cursor = |
|
of_ioremap(&op->resource[0], LEO_OFF_LX_CURSOR, |
|
sizeof(struct leo_cursor), "leolx cursor"); |
|
info->screen_base = |
|
of_ioremap(&op->resource[0], LEO_OFF_SS0, |
|
0x800000, "leo ram"); |
|
if (!par->lc_ss0_usr || |
|
!par->ld_ss0 || |
|
!par->ld_ss1 || |
|
!par->lx_krn || |
|
!par->cursor || |
|
!info->screen_base) |
|
goto out_unmap_regs; |
|
|
|
info->flags = FBINFO_DEFAULT; |
|
info->fbops = &leo_ops; |
|
info->pseudo_palette = par->clut_data; |
|
|
|
leo_init_wids(info); |
|
leo_init_hw(info); |
|
|
|
leo_blank(FB_BLANK_UNBLANK, info); |
|
|
|
if (fb_alloc_cmap(&info->cmap, 256, 0)) |
|
goto out_unmap_regs; |
|
|
|
leo_init_fix(info, dp); |
|
|
|
err = register_framebuffer(info); |
|
if (err < 0) |
|
goto out_dealloc_cmap; |
|
|
|
dev_set_drvdata(&op->dev, info); |
|
|
|
printk(KERN_INFO "%pOF: leo at %lx:%lx\n", |
|
dp, |
|
par->which_io, info->fix.smem_start); |
|
|
|
return 0; |
|
|
|
out_dealloc_cmap: |
|
fb_dealloc_cmap(&info->cmap); |
|
|
|
out_unmap_regs: |
|
leo_unmap_regs(op, info, par); |
|
framebuffer_release(info); |
|
|
|
out_err: |
|
return err; |
|
} |
|
|
|
static int leo_remove(struct platform_device *op) |
|
{ |
|
struct fb_info *info = dev_get_drvdata(&op->dev); |
|
struct leo_par *par = info->par; |
|
|
|
unregister_framebuffer(info); |
|
fb_dealloc_cmap(&info->cmap); |
|
|
|
leo_unmap_regs(op, info, par); |
|
|
|
framebuffer_release(info); |
|
|
|
return 0; |
|
} |
|
|
|
static const struct of_device_id leo_match[] = { |
|
{ |
|
.name = "SUNW,leo", |
|
}, |
|
{}, |
|
}; |
|
MODULE_DEVICE_TABLE(of, leo_match); |
|
|
|
static struct platform_driver leo_driver = { |
|
.driver = { |
|
.name = "leo", |
|
.of_match_table = leo_match, |
|
}, |
|
.probe = leo_probe, |
|
.remove = leo_remove, |
|
}; |
|
|
|
static int __init leo_init(void) |
|
{ |
|
if (fb_get_options("leofb", NULL)) |
|
return -ENODEV; |
|
|
|
return platform_driver_register(&leo_driver); |
|
} |
|
|
|
static void __exit leo_exit(void) |
|
{ |
|
platform_driver_unregister(&leo_driver); |
|
} |
|
|
|
module_init(leo_init); |
|
module_exit(leo_exit); |
|
|
|
MODULE_DESCRIPTION("framebuffer driver for LEO chipsets"); |
|
MODULE_AUTHOR("David S. Miller <[email protected]>"); |
|
MODULE_VERSION("2.0"); |
|
MODULE_LICENSE("GPL");
|
|
|