Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2)  *	linux/drivers/video/pmag-aa-fb.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  *	Copyright 2002 Karsten Merker <merker@debian.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  *	PMAG-AA TurboChannel framebuffer card support ... derived from
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  *	pmag-ba-fb.c, which is Copyright (C) 1999, 2000, 2001 by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  *	Michael Engel <engel@unix-ag.org>, Karsten Merker <merker@debian.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8)  *	and Harald Koerfgen <hkoerfg@web.de>, which itself is derived from
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9)  *	"HP300 Topcat framebuffer support (derived from macfb of all things)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10)  *	Phil Blundell <philb@gnu.org> 1998"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11)  *	Copyright (c) 2016  Maciej W. Rozycki
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13)  *	This file is subject to the terms and conditions of the GNU General
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14)  *	Public License.  See the file COPYING in the main directory of this
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15)  *	archive for more details.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17)  *	2002-09-28  Karsten Merker <merker@linuxtag.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18)  *		Version 0.01: First try to get a PMAG-AA running.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20)  *	2003-02-24  Thiemo Seufer  <seufer@csv.ica.uni-stuttgart.de>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21)  *		Version 0.02: Major code cleanup.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23)  *	2003-09-21  Thiemo Seufer  <seufer@csv.ica.uni-stuttgart.de>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24)  *		Hardware cursor support.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26)  *	2016-02-21  Maciej W. Rozycki  <macro@linux-mips.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27)  *		Version 0.03: Rewritten for the new FB and TC APIs.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) #include <linux/compiler.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) #include <linux/errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) #include <linux/fb.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) #include <linux/io.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) #include <linux/tc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) #include <linux/timer.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) #include "bt455.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) #include "bt431.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) /* Version information */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) #define DRIVER_VERSION "0.03"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) #define DRIVER_AUTHOR "Karsten Merker <merker@linuxtag.org>"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) #define DRIVER_DESCRIPTION "PMAG-AA Framebuffer Driver"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49)  * Bt455 RAM DAC register base offset (rel. to TC slot base address).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) #define PMAG_AA_BT455_OFFSET		0x100000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54)  * Bt431 cursor generator offset (rel. to TC slot base address).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) #define PMAG_AA_BT431_OFFSET		0x180000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59)  * Begin of PMAG-AA framebuffer memory relative to TC slot address,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60)  * resolution is 1280x1024x1 (8 bits deep, but only LSB is used).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) #define PMAG_AA_ONBOARD_FBMEM_OFFSET	0x200000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) struct aafb_par {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 	void __iomem *mmio;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 	struct bt455_regs __iomem *bt455;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 	struct bt431_regs __iomem *bt431;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) static const struct fb_var_screeninfo aafb_defined = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 	.xres		= 1280,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 	.yres		= 1024,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 	.xres_virtual	= 2048,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 	.yres_virtual	= 1024,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 	.bits_per_pixel	= 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 	.grayscale	= 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 	.red.length	= 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 	.green.length	= 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 	.blue.length	= 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 	.activate	= FB_ACTIVATE_NOW,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 	.accel_flags	= FB_ACCEL_NONE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 	.pixclock	= 7645,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 	.left_margin	= 224,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 	.right_margin	= 32,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 	.upper_margin	= 33,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 	.lower_margin	= 3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 	.hsync_len	= 160,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 	.vsync_len	= 3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 	.sync		= FB_SYNC_ON_GREEN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 	.vmode		= FB_VMODE_NONINTERLACED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) static const struct fb_fix_screeninfo aafb_fix = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 	.id		= "PMAG-AA",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	.smem_len	= (2048 * 1024),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 	.type		= FB_TYPE_PACKED_PIXELS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 	.visual		= FB_VISUAL_MONO10,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 	.ypanstep	= 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	.ywrapstep	= 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	.line_length	= 2048,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	.mmio_len	= PMAG_AA_ONBOARD_FBMEM_OFFSET - PMAG_AA_BT455_OFFSET,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) static int aafb_cursor(struct fb_info *info, struct fb_cursor *cursor)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 	struct aafb_par *par = info->par;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 	if (cursor->image.height > BT431_CURSOR_SIZE ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	    cursor->image.width > BT431_CURSOR_SIZE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 		bt431_erase_cursor(par->bt431);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	if (!cursor->enable)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 		bt431_erase_cursor(par->bt431);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 	if (cursor->set & FB_CUR_SETPOS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 		bt431_position_cursor(par->bt431,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 				      cursor->image.dx, cursor->image.dy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 	if (cursor->set & FB_CUR_SETCMAP) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 		u8 fg = cursor->image.fg_color ? 0xf : 0x0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 		u8 bg = cursor->image.bg_color ? 0xf : 0x0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 		bt455_write_cmap_entry(par->bt455, 8, bg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 		bt455_write_cmap_next(par->bt455, bg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 		bt455_write_ovly_next(par->bt455, fg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 	if (cursor->set & (FB_CUR_SETSIZE | FB_CUR_SETSHAPE | FB_CUR_SETIMAGE))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 		bt431_set_cursor(par->bt431,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 				 cursor->image.data, cursor->mask, cursor->rop,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 				 cursor->image.width, cursor->image.height);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	if (cursor->enable)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 		bt431_enable_cursor(par->bt431);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) /* 0 unblanks, any other blanks. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) static int aafb_blank(int blank, struct fb_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 	struct aafb_par *par = info->par;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 	u8 val = blank ? 0x00 : 0x0f;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 	bt455_write_cmap_entry(par->bt455, 1, val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) static const struct fb_ops aafb_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 	.owner		= THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 	.fb_blank	= aafb_blank,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 	.fb_fillrect	= cfb_fillrect,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 	.fb_copyarea	= cfb_copyarea,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 	.fb_imageblit	= cfb_imageblit,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 	.fb_cursor	= aafb_cursor,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) static int pmagaafb_probe(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 	struct tc_dev *tdev = to_tc_dev(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 	resource_size_t start, len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	struct fb_info *info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 	struct aafb_par *par;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 	info = framebuffer_alloc(sizeof(struct aafb_par), dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 	if (!info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	par = info->par;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 	dev_set_drvdata(dev, info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 	info->fbops = &aafb_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 	info->fix = aafb_fix;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 	info->var = aafb_defined;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 	info->flags = FBINFO_DEFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 	/* Request the I/O MEM resource. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 	start = tdev->resource.start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 	len = tdev->resource.end - start + 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 	if (!request_mem_region(start, len, dev_name(dev))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 		printk(KERN_ERR "%s: Cannot reserve FB region\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 		       dev_name(dev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 		err = -EBUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 		goto err_alloc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 	/* MMIO mapping setup. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 	info->fix.mmio_start = start + PMAG_AA_BT455_OFFSET;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 	par->mmio = ioremap(info->fix.mmio_start, info->fix.mmio_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 	if (!par->mmio) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 		printk(KERN_ERR "%s: Cannot map MMIO\n", dev_name(dev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 		err = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 		goto err_resource;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 	par->bt455 = par->mmio - PMAG_AA_BT455_OFFSET + PMAG_AA_BT455_OFFSET;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 	par->bt431 = par->mmio - PMAG_AA_BT455_OFFSET + PMAG_AA_BT431_OFFSET;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 	/* Frame buffer mapping setup. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 	info->fix.smem_start = start + PMAG_AA_ONBOARD_FBMEM_OFFSET;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 	info->screen_base = ioremap(info->fix.smem_start,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 					    info->fix.smem_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 	if (!info->screen_base) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 		printk(KERN_ERR "%s: Cannot map FB\n", dev_name(dev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 		err = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 		goto err_mmio_map;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 	info->screen_size = info->fix.smem_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 	/* Init colormap. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 	bt455_write_cmap_entry(par->bt455, 0, 0x0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 	bt455_write_cmap_next(par->bt455, 0xf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 	/* Init hardware cursor. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 	bt431_erase_cursor(par->bt431);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	bt431_init_cursor(par->bt431);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	err = register_framebuffer(info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 	if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 		printk(KERN_ERR "%s: Cannot register framebuffer\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 		       dev_name(dev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 		goto err_smem_map;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 	get_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 	pr_info("fb%d: %s frame buffer device at %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 		info->node, info->fix.id, dev_name(dev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) err_smem_map:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 	iounmap(info->screen_base);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) err_mmio_map:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 	iounmap(par->mmio);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) err_resource:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 	release_mem_region(start, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) err_alloc:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 	framebuffer_release(info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) static int pmagaafb_remove(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 	struct tc_dev *tdev = to_tc_dev(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 	struct fb_info *info = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 	struct aafb_par *par = info->par;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 	resource_size_t start, len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 	put_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 	unregister_framebuffer(info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 	iounmap(info->screen_base);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 	iounmap(par->mmio);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 	start = tdev->resource.start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 	len = tdev->resource.end - start + 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 	release_mem_region(start, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 	framebuffer_release(info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267)  * Initialise the framebuffer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) static const struct tc_device_id pmagaafb_tc_table[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 	{ "DEC     ", "PMAG-AA " },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 	{ }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) MODULE_DEVICE_TABLE(tc, pmagaafb_tc_table);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) static struct tc_driver pmagaafb_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 	.id_table	= pmagaafb_tc_table,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 	.driver		= {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 		.name	= "pmagaafb",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 		.bus	= &tc_bus_type,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 		.probe	= pmagaafb_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 		.remove	= pmagaafb_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) static int __init pmagaafb_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) #ifndef MODULE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 	if (fb_get_options("pmagaafb", NULL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 		return -ENXIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 	return tc_register_driver(&pmagaafb_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) static void __exit pmagaafb_exit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 	tc_unregister_driver(&pmagaafb_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) module_init(pmagaafb_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) module_exit(pmagaafb_exit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) MODULE_AUTHOR(DRIVER_AUTHOR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) MODULE_DESCRIPTION(DRIVER_DESCRIPTION);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) MODULE_LICENSE("GPL");