[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/drivers/video/fbdev/pmag-aa-fb.c b/src/kernel/linux/v4.14/drivers/video/fbdev/pmag-aa-fb.c
new file mode 100644
index 0000000..ca7e939
--- /dev/null
+++ b/src/kernel/linux/v4.14/drivers/video/fbdev/pmag-aa-fb.c
@@ -0,0 +1,306 @@
+/*
+ * linux/drivers/video/pmag-aa-fb.c
+ * Copyright 2002 Karsten Merker <merker@debian.org>
+ *
+ * PMAG-AA TurboChannel framebuffer card support ... derived from
+ * pmag-ba-fb.c, which is Copyright (C) 1999, 2000, 2001 by
+ * Michael Engel <engel@unix-ag.org>, Karsten Merker <merker@debian.org>
+ * and Harald Koerfgen <hkoerfg@web.de>, which itself is derived from
+ * "HP300 Topcat framebuffer support (derived from macfb of all things)
+ * Phil Blundell <philb@gnu.org> 1998"
+ * Copyright (c) 2016 Maciej W. Rozycki
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License. See the file COPYING in the main directory of this
+ * archive for more details.
+ *
+ * 2002-09-28 Karsten Merker <merker@linuxtag.org>
+ * Version 0.01: First try to get a PMAG-AA running.
+ *
+ * 2003-02-24 Thiemo Seufer <seufer@csv.ica.uni-stuttgart.de>
+ * Version 0.02: Major code cleanup.
+ *
+ * 2003-09-21 Thiemo Seufer <seufer@csv.ica.uni-stuttgart.de>
+ * Hardware cursor support.
+ *
+ * 2016-02-21 Maciej W. Rozycki <macro@linux-mips.org>
+ * Version 0.03: Rewritten for the new FB and TC APIs.
+ */
+
+#include <linux/compiler.h>
+#include <linux/errno.h>
+#include <linux/fb.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/tc.h>
+#include <linux/timer.h>
+
+#include "bt455.h"
+#include "bt431.h"
+
+/* Version information */
+#define DRIVER_VERSION "0.03"
+#define DRIVER_AUTHOR "Karsten Merker <merker@linuxtag.org>"
+#define DRIVER_DESCRIPTION "PMAG-AA Framebuffer Driver"
+
+/*
+ * Bt455 RAM DAC register base offset (rel. to TC slot base address).
+ */
+#define PMAG_AA_BT455_OFFSET 0x100000
+
+/*
+ * Bt431 cursor generator offset (rel. to TC slot base address).
+ */
+#define PMAG_AA_BT431_OFFSET 0x180000
+
+/*
+ * Begin of PMAG-AA framebuffer memory relative to TC slot address,
+ * resolution is 1280x1024x1 (8 bits deep, but only LSB is used).
+ */
+#define PMAG_AA_ONBOARD_FBMEM_OFFSET 0x200000
+
+struct aafb_par {
+ void __iomem *mmio;
+ struct bt455_regs __iomem *bt455;
+ struct bt431_regs __iomem *bt431;
+};
+
+static const struct fb_var_screeninfo aafb_defined = {
+ .xres = 1280,
+ .yres = 1024,
+ .xres_virtual = 2048,
+ .yres_virtual = 1024,
+ .bits_per_pixel = 8,
+ .grayscale = 1,
+ .red.length = 0,
+ .green.length = 1,
+ .blue.length = 0,
+ .activate = FB_ACTIVATE_NOW,
+ .accel_flags = FB_ACCEL_NONE,
+ .pixclock = 7645,
+ .left_margin = 224,
+ .right_margin = 32,
+ .upper_margin = 33,
+ .lower_margin = 3,
+ .hsync_len = 160,
+ .vsync_len = 3,
+ .sync = FB_SYNC_ON_GREEN,
+ .vmode = FB_VMODE_NONINTERLACED,
+};
+
+static const struct fb_fix_screeninfo aafb_fix = {
+ .id = "PMAG-AA",
+ .smem_len = (2048 * 1024),
+ .type = FB_TYPE_PACKED_PIXELS,
+ .visual = FB_VISUAL_MONO10,
+ .ypanstep = 1,
+ .ywrapstep = 1,
+ .line_length = 2048,
+ .mmio_len = PMAG_AA_ONBOARD_FBMEM_OFFSET - PMAG_AA_BT455_OFFSET,
+};
+
+static int aafb_cursor(struct fb_info *info, struct fb_cursor *cursor)
+{
+ struct aafb_par *par = info->par;
+
+ if (cursor->image.height > BT431_CURSOR_SIZE ||
+ cursor->image.width > BT431_CURSOR_SIZE) {
+ bt431_erase_cursor(par->bt431);
+ return -EINVAL;
+ }
+
+ if (!cursor->enable)
+ bt431_erase_cursor(par->bt431);
+
+ if (cursor->set & FB_CUR_SETPOS)
+ bt431_position_cursor(par->bt431,
+ cursor->image.dx, cursor->image.dy);
+ if (cursor->set & FB_CUR_SETCMAP) {
+ u8 fg = cursor->image.fg_color ? 0xf : 0x0;
+ u8 bg = cursor->image.bg_color ? 0xf : 0x0;
+
+ bt455_write_cmap_entry(par->bt455, 8, bg);
+ bt455_write_cmap_next(par->bt455, bg);
+ bt455_write_ovly_next(par->bt455, fg);
+ }
+ if (cursor->set & (FB_CUR_SETSIZE | FB_CUR_SETSHAPE | FB_CUR_SETIMAGE))
+ bt431_set_cursor(par->bt431,
+ cursor->image.data, cursor->mask, cursor->rop,
+ cursor->image.width, cursor->image.height);
+
+ if (cursor->enable)
+ bt431_enable_cursor(par->bt431);
+
+ return 0;
+}
+
+/* 0 unblanks, any other blanks. */
+
+static int aafb_blank(int blank, struct fb_info *info)
+{
+ struct aafb_par *par = info->par;
+ u8 val = blank ? 0x00 : 0x0f;
+
+ bt455_write_cmap_entry(par->bt455, 1, val);
+ return 0;
+}
+
+static struct fb_ops aafb_ops = {
+ .owner = THIS_MODULE,
+ .fb_blank = aafb_blank,
+ .fb_fillrect = cfb_fillrect,
+ .fb_copyarea = cfb_copyarea,
+ .fb_imageblit = cfb_imageblit,
+ .fb_cursor = aafb_cursor,
+};
+
+static int pmagaafb_probe(struct device *dev)
+{
+ struct tc_dev *tdev = to_tc_dev(dev);
+ resource_size_t start, len;
+ struct fb_info *info;
+ struct aafb_par *par;
+ int err;
+
+ info = framebuffer_alloc(sizeof(struct aafb_par), dev);
+ if (!info) {
+ printk(KERN_ERR "%s: Cannot allocate memory\n", dev_name(dev));
+ return -ENOMEM;
+ }
+
+ par = info->par;
+ dev_set_drvdata(dev, info);
+
+ info->fbops = &aafb_ops;
+ info->fix = aafb_fix;
+ info->var = aafb_defined;
+ info->flags = FBINFO_DEFAULT;
+
+ /* Request the I/O MEM resource. */
+ start = tdev->resource.start;
+ len = tdev->resource.end - start + 1;
+ if (!request_mem_region(start, len, dev_name(dev))) {
+ printk(KERN_ERR "%s: Cannot reserve FB region\n",
+ dev_name(dev));
+ err = -EBUSY;
+ goto err_alloc;
+ }
+
+ /* MMIO mapping setup. */
+ info->fix.mmio_start = start + PMAG_AA_BT455_OFFSET;
+ par->mmio = ioremap_nocache(info->fix.mmio_start, info->fix.mmio_len);
+ if (!par->mmio) {
+ printk(KERN_ERR "%s: Cannot map MMIO\n", dev_name(dev));
+ err = -ENOMEM;
+ goto err_resource;
+ }
+ par->bt455 = par->mmio - PMAG_AA_BT455_OFFSET + PMAG_AA_BT455_OFFSET;
+ par->bt431 = par->mmio - PMAG_AA_BT455_OFFSET + PMAG_AA_BT431_OFFSET;
+
+ /* Frame buffer mapping setup. */
+ info->fix.smem_start = start + PMAG_AA_ONBOARD_FBMEM_OFFSET;
+ info->screen_base = ioremap_nocache(info->fix.smem_start,
+ info->fix.smem_len);
+ if (!info->screen_base) {
+ printk(KERN_ERR "%s: Cannot map FB\n", dev_name(dev));
+ err = -ENOMEM;
+ goto err_mmio_map;
+ }
+ info->screen_size = info->fix.smem_len;
+
+ /* Init colormap. */
+ bt455_write_cmap_entry(par->bt455, 0, 0x0);
+ bt455_write_cmap_next(par->bt455, 0xf);
+
+ /* Init hardware cursor. */
+ bt431_erase_cursor(par->bt431);
+ bt431_init_cursor(par->bt431);
+
+ err = register_framebuffer(info);
+ if (err < 0) {
+ printk(KERN_ERR "%s: Cannot register framebuffer\n",
+ dev_name(dev));
+ goto err_smem_map;
+ }
+
+ get_device(dev);
+
+ pr_info("fb%d: %s frame buffer device at %s\n",
+ info->node, info->fix.id, dev_name(dev));
+
+ return 0;
+
+
+err_smem_map:
+ iounmap(info->screen_base);
+
+err_mmio_map:
+ iounmap(par->mmio);
+
+err_resource:
+ release_mem_region(start, len);
+
+err_alloc:
+ framebuffer_release(info);
+ return err;
+}
+
+static int pmagaafb_remove(struct device *dev)
+{
+ struct tc_dev *tdev = to_tc_dev(dev);
+ struct fb_info *info = dev_get_drvdata(dev);
+ struct aafb_par *par = info->par;
+ resource_size_t start, len;
+
+ put_device(dev);
+ unregister_framebuffer(info);
+ iounmap(info->screen_base);
+ iounmap(par->mmio);
+ start = tdev->resource.start;
+ len = tdev->resource.end - start + 1;
+ release_mem_region(start, len);
+ framebuffer_release(info);
+ return 0;
+}
+
+/*
+ * Initialise the framebuffer.
+ */
+static const struct tc_device_id pmagaafb_tc_table[] = {
+ { "DEC ", "PMAG-AA " },
+ { }
+};
+MODULE_DEVICE_TABLE(tc, pmagaafb_tc_table);
+
+static struct tc_driver pmagaafb_driver = {
+ .id_table = pmagaafb_tc_table,
+ .driver = {
+ .name = "pmagaafb",
+ .bus = &tc_bus_type,
+ .probe = pmagaafb_probe,
+ .remove = pmagaafb_remove,
+ },
+};
+
+static int __init pmagaafb_init(void)
+{
+#ifndef MODULE
+ if (fb_get_options("pmagaafb", NULL))
+ return -ENXIO;
+#endif
+ return tc_register_driver(&pmagaafb_driver);
+}
+
+static void __exit pmagaafb_exit(void)
+{
+ tc_unregister_driver(&pmagaafb_driver);
+}
+
+module_init(pmagaafb_init);
+module_exit(pmagaafb_exit);
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESCRIPTION);
+MODULE_LICENSE("GPL");