aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/video/sunxvr2500.c
diff options
context:
space:
mode:
authorDavid S. Miller <davem@sunset.davemloft.net>2007-05-07 01:45:50 -0400
committerDavid S. Miller <davem@sunset.davemloft.net>2007-05-07 01:45:50 -0400
commit71227521459872c321e7a581e82723bbc1aa33e1 (patch)
tree3e232a92291998a1a274b8171d5741bb4a7df472 /drivers/video/sunxvr2500.c
parent453e93b348ebabc517149b9d9a05042a3c1ccc82 (diff)
[VIDEO]: Add Sun XVR-2500 framebuffer driver.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/video/sunxvr2500.c')
-rw-r--r--drivers/video/sunxvr2500.c277
1 files changed, 277 insertions, 0 deletions
diff --git a/drivers/video/sunxvr2500.c b/drivers/video/sunxvr2500.c
new file mode 100644
index 000000000000..4010492c6920
--- /dev/null
+++ b/drivers/video/sunxvr2500.c
@@ -0,0 +1,277 @@
1/* s3d.c: Sun 3DLABS XVR-2500 et al. driver for sparc64 systems
2 *
3 * Copyright (C) 2007 David S. Miller (davem@davemloft.net)
4 */
5
6#include <linux/module.h>
7#include <linux/kernel.h>
8#include <linux/slab.h>
9#include <linux/fb.h>
10#include <linux/pci.h>
11#include <linux/init.h>
12
13#include <asm/io.h>
14#include <asm/prom.h>
15#include <asm/of_device.h>
16
17struct s3d_info {
18 struct fb_info *info;
19 struct pci_dev *pdev;
20
21 char __iomem *fb_base;
22 unsigned long fb_base_phys;
23
24 struct device_node *of_node;
25
26 unsigned int width;
27 unsigned int height;
28 unsigned int depth;
29 unsigned int fb_size;
30
31 u32 pseudo_palette[256];
32};
33
34static int __devinit s3d_get_props(struct s3d_info *sp)
35{
36 sp->width = of_getintprop_default(sp->of_node, "width", 0);
37 sp->height = of_getintprop_default(sp->of_node, "height", 0);
38 sp->depth = of_getintprop_default(sp->of_node, "depth", 8);
39
40 if (!sp->width || !sp->height) {
41 printk(KERN_ERR "s3d: Critical properties missing for %s\n",
42 pci_name(sp->pdev));
43 return -EINVAL;
44 }
45
46 return 0;
47}
48
49static int s3d_setcolreg(unsigned regno,
50 unsigned red, unsigned green, unsigned blue,
51 unsigned transp, struct fb_info *info)
52{
53 u32 value;
54
55 if (regno >= 256)
56 return 1;
57
58 red >>= 8;
59 green >>= 8;
60 blue >>= 8;
61
62 value = (blue << 24) | (green << 16) | (red << 8);
63 ((u32 *)info->pseudo_palette)[regno] = value;
64
65 return 0;
66}
67
68static struct fb_ops s3d_ops = {
69 .owner = THIS_MODULE,
70 .fb_setcolreg = s3d_setcolreg,
71 .fb_fillrect = cfb_fillrect,
72 .fb_copyarea = cfb_copyarea,
73 .fb_imageblit = cfb_imageblit,
74};
75
76static int __devinit s3d_set_fbinfo(struct s3d_info *sp)
77{
78 struct fb_info *info = sp->info;
79 struct fb_var_screeninfo *var = &info->var;
80
81 info->flags = FBINFO_DEFAULT;
82 info->fbops = &s3d_ops;
83 info->screen_base = sp->fb_base;
84 info->screen_size = sp->fb_size;
85
86 info->pseudo_palette = sp->pseudo_palette;
87
88 /* Fill fix common fields */
89 strlcpy(info->fix.id, "s3d", sizeof(info->fix.id));
90 info->fix.smem_start = sp->fb_base_phys;
91 info->fix.smem_len = sp->fb_size;
92 info->fix.type = FB_TYPE_PACKED_PIXELS;
93 if (sp->depth == 32 || sp->depth == 24)
94 info->fix.visual = FB_VISUAL_TRUECOLOR;
95 else
96 info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
97
98 var->xres = sp->width;
99 var->yres = sp->height;
100 var->xres_virtual = var->xres;
101 var->yres_virtual = var->yres;
102 var->bits_per_pixel = sp->depth;
103
104 var->red.offset = 8;
105 var->red.length = 8;
106 var->green.offset = 16;
107 var->green.length = 8;
108 var->blue.offset = 24;
109 var->blue.length = 8;
110 var->transp.offset = 0;
111 var->transp.length = 0;
112
113 if (fb_alloc_cmap(&info->cmap, 256, 0)) {
114 printk(KERN_ERR "s3d: Cannot allocate color map.\n");
115 return -ENOMEM;
116 }
117
118 return 0;
119}
120
121static int __devinit s3d_pci_register(struct pci_dev *pdev,
122 const struct pci_device_id *ent)
123{
124 struct fb_info *info;
125 struct s3d_info *sp;
126 int err;
127
128 err = pci_enable_device(pdev);
129 if (err < 0) {
130 printk(KERN_ERR "s3d: Cannot enable PCI device %s\n",
131 pci_name(pdev));
132 goto err_out;
133 }
134
135 info = framebuffer_alloc(sizeof(struct s3d_info), &pdev->dev);
136 if (!info) {
137 printk(KERN_ERR "s3d: Cannot allocate fb_info\n");
138 err = -ENOMEM;
139 goto err_disable;
140 }
141
142 sp = info->par;
143 sp->info = info;
144 sp->pdev = pdev;
145 sp->of_node = pci_device_to_OF_node(pdev);
146 if (!sp->of_node) {
147 printk(KERN_ERR "s3d: Cannot find OF node of %s\n",
148 pci_name(pdev));
149 err = -ENODEV;
150 goto err_release_fb;
151 }
152
153 sp->fb_base_phys = pci_resource_start (pdev, 1);
154
155 err = pci_request_region(pdev, 1, "s3d framebuffer");
156 if (err < 0) {
157 printk("s3d: Cannot request region 1 for %s\n",
158 pci_name(pdev));
159 goto err_release_fb;
160 }
161
162 err = s3d_get_props(sp);
163 if (err)
164 goto err_release_pci;
165
166 /* XXX 'linebytes' is often wrong, it is equal to the width
167 * XXX with depth of 32 on my XVR-2500 which is clearly not
168 * XXX right. So we don't try to use it.
169 */
170 switch (sp->depth) {
171 case 8:
172 info->fix.line_length = sp->width;
173 break;
174 case 16:
175 info->fix.line_length = sp->width * 2;
176 break;
177 case 24:
178 info->fix.line_length = sp->width * 3;
179 break;
180 case 32:
181 info->fix.line_length = sp->width * 4;
182 break;
183 }
184 sp->fb_size = info->fix.line_length * sp->height;
185
186 sp->fb_base = ioremap(sp->fb_base_phys, sp->fb_size);
187 if (!sp->fb_base)
188 goto err_release_pci;
189
190 err = s3d_set_fbinfo(sp);
191 if (err)
192 goto err_unmap_fb;
193
194 pci_set_drvdata(pdev, info);
195
196 printk("s3d: Found device at %s\n", pci_name(pdev));
197
198 err = register_framebuffer(info);
199 if (err < 0) {
200 printk(KERN_ERR "s3d: Could not register framebuffer %s\n",
201 pci_name(pdev));
202 goto err_unmap_fb;
203 }
204
205 return 0;
206
207err_unmap_fb:
208 iounmap(sp->fb_base);
209
210err_release_pci:
211 pci_release_region(pdev, 1);
212
213err_release_fb:
214 framebuffer_release(info);
215
216err_disable:
217 pci_disable_device(pdev);
218
219err_out:
220 return err;
221}
222
223static void __devexit s3d_pci_unregister(struct pci_dev *pdev)
224{
225 struct fb_info *info = pci_get_drvdata(pdev);
226 struct s3d_info *sp = info->par;
227
228 unregister_framebuffer(info);
229
230 iounmap(sp->fb_base);
231
232 pci_release_region(pdev, 1);
233
234 framebuffer_release(info);
235
236 pci_disable_device(pdev);
237}
238
239static struct pci_device_id s3d_pci_table[] = {
240 { /* XVR-2500 */
241 PCI_DEVICE(PCI_VENDOR_ID_3DLABS, 0x0032),
242 .driver_data = 1,
243 },
244 { /* XVR-500 */
245 PCI_DEVICE(PCI_VENDOR_ID_3DLABS, 0x07a2),
246 .driver_data = 0,
247 },
248 { 0, }
249};
250
251static struct pci_driver s3d_driver = {
252 .name = "s3d",
253 .id_table = s3d_pci_table,
254 .probe = s3d_pci_register,
255 .remove = __devexit_p(s3d_pci_unregister),
256};
257
258static int __init s3d_init(void)
259{
260 if (fb_get_options("s3d", NULL))
261 return -ENODEV;
262
263 return pci_register_driver(&s3d_driver);
264}
265
266static void __exit s3d_exit(void)
267{
268 pci_unregister_driver(&s3d_driver);
269}
270
271module_init(s3d_init);
272module_exit(s3d_exit);
273
274MODULE_DESCRIPTION("framebuffer driver for Sun XVR-2500 graphics");
275MODULE_AUTHOR("David S. Miller <davem@davemloft.net>");
276MODULE_VERSION("1.0");
277MODULE_LICENSE("GPL");