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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#include <linux/of_device.h>
13
14#include <asm/io.h>
15
16struct s3d_info {
17 struct fb_info *info;
18 struct pci_dev *pdev;
19
20 char __iomem *fb_base;
21 unsigned long fb_base_phys;
22
23 struct device_node *of_node;
24
25 unsigned int width;
26 unsigned int height;
27 unsigned int depth;
28 unsigned int fb_size;
29
30 u32 pseudo_palette[16];
31};
32
33static int __devinit s3d_get_props(struct s3d_info *sp)
34{
35 sp->width = of_getintprop_default(sp->of_node, "width", 0);
36 sp->height = of_getintprop_default(sp->of_node, "height", 0);
37 sp->depth = of_getintprop_default(sp->of_node, "depth", 8);
38
39 if (!sp->width || !sp->height) {
40 printk(KERN_ERR "s3d: Critical properties missing for %s\n",
41 pci_name(sp->pdev));
42 return -EINVAL;
43 }
44
45 return 0;
46}
47
48static int s3d_setcolreg(unsigned regno,
49 unsigned red, unsigned green, unsigned blue,
50 unsigned transp, struct fb_info *info)
51{
52 u32 value;
53
54 if (regno < 16) {
55 red >>= 8;
56 green >>= 8;
57 blue >>= 8;
58
59 value = (blue << 24) | (green << 16) | (red << 8);
60 ((u32 *)info->pseudo_palette)[regno] = value;
61 }
62
63 return 0;
64}
65
66static struct fb_ops s3d_ops = {
67 .owner = THIS_MODULE,
68 .fb_setcolreg = s3d_setcolreg,
69 .fb_fillrect = cfb_fillrect,
70 .fb_copyarea = cfb_copyarea,
71 .fb_imageblit = cfb_imageblit,
72};
73
74static int __devinit s3d_set_fbinfo(struct s3d_info *sp)
75{
76 struct fb_info *info = sp->info;
77 struct fb_var_screeninfo *var = &info->var;
78
79 info->flags = FBINFO_DEFAULT;
80 info->fbops = &s3d_ops;
81 info->screen_base = sp->fb_base;
82 info->screen_size = sp->fb_size;
83
84 info->pseudo_palette = sp->pseudo_palette;
85
86
87 strlcpy(info->fix.id, "s3d", sizeof(info->fix.id));
88 info->fix.smem_start = sp->fb_base_phys;
89 info->fix.smem_len = sp->fb_size;
90 info->fix.type = FB_TYPE_PACKED_PIXELS;
91 if (sp->depth == 32 || sp->depth == 24)
92 info->fix.visual = FB_VISUAL_TRUECOLOR;
93 else
94 info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
95
96 var->xres = sp->width;
97 var->yres = sp->height;
98 var->xres_virtual = var->xres;
99 var->yres_virtual = var->yres;
100 var->bits_per_pixel = sp->depth;
101
102 var->red.offset = 8;
103 var->red.length = 8;
104 var->green.offset = 16;
105 var->green.length = 8;
106 var->blue.offset = 24;
107 var->blue.length = 8;
108 var->transp.offset = 0;
109 var->transp.length = 0;
110
111 if (fb_alloc_cmap(&info->cmap, 256, 0)) {
112 printk(KERN_ERR "s3d: Cannot allocate color map.\n");
113 return -ENOMEM;
114 }
115
116 return 0;
117}
118
119static int __devinit s3d_pci_register(struct pci_dev *pdev,
120 const struct pci_device_id *ent)
121{
122 struct fb_info *info;
123 struct s3d_info *sp;
124 int err;
125
126 err = pci_enable_device(pdev);
127 if (err < 0) {
128 printk(KERN_ERR "s3d: Cannot enable PCI device %s\n",
129 pci_name(pdev));
130 goto err_out;
131 }
132
133 info = framebuffer_alloc(sizeof(struct s3d_info), &pdev->dev);
134 if (!info) {
135 printk(KERN_ERR "s3d: Cannot allocate fb_info\n");
136 err = -ENOMEM;
137 goto err_disable;
138 }
139
140 sp = info->par;
141 sp->info = info;
142 sp->pdev = pdev;
143 sp->of_node = pci_device_to_OF_node(pdev);
144 if (!sp->of_node) {
145 printk(KERN_ERR "s3d: Cannot find OF node of %s\n",
146 pci_name(pdev));
147 err = -ENODEV;
148 goto err_release_fb;
149 }
150
151 sp->fb_base_phys = pci_resource_start (pdev, 1);
152
153 err = pci_request_region(pdev, 1, "s3d framebuffer");
154 if (err < 0) {
155 printk("s3d: Cannot request region 1 for %s\n",
156 pci_name(pdev));
157 goto err_release_fb;
158 }
159
160 err = s3d_get_props(sp);
161 if (err)
162 goto err_release_pci;
163
164
165
166
167
168 switch (sp->depth) {
169 case 8:
170 info->fix.line_length = sp->width;
171 break;
172 case 16:
173 info->fix.line_length = sp->width * 2;
174 break;
175 case 24:
176 info->fix.line_length = sp->width * 3;
177 break;
178 case 32:
179 info->fix.line_length = sp->width * 4;
180 break;
181 }
182 sp->fb_size = info->fix.line_length * sp->height;
183
184 sp->fb_base = ioremap(sp->fb_base_phys, sp->fb_size);
185 if (!sp->fb_base)
186 goto err_release_pci;
187
188 err = s3d_set_fbinfo(sp);
189 if (err)
190 goto err_unmap_fb;
191
192 pci_set_drvdata(pdev, info);
193
194 printk("s3d: Found device at %s\n", pci_name(pdev));
195
196 err = register_framebuffer(info);
197 if (err < 0) {
198 printk(KERN_ERR "s3d: Could not register framebuffer %s\n",
199 pci_name(pdev));
200 goto err_unmap_fb;
201 }
202
203 return 0;
204
205err_unmap_fb:
206 iounmap(sp->fb_base);
207
208err_release_pci:
209 pci_release_region(pdev, 1);
210
211err_release_fb:
212 framebuffer_release(info);
213
214err_disable:
215 pci_disable_device(pdev);
216
217err_out:
218 return err;
219}
220
221static void __devexit s3d_pci_unregister(struct pci_dev *pdev)
222{
223 struct fb_info *info = pci_get_drvdata(pdev);
224 struct s3d_info *sp = info->par;
225
226 unregister_framebuffer(info);
227
228 iounmap(sp->fb_base);
229
230 pci_release_region(pdev, 1);
231
232 framebuffer_release(info);
233
234 pci_disable_device(pdev);
235}
236
237static struct pci_device_id s3d_pci_table[] = {
238 { PCI_DEVICE(PCI_VENDOR_ID_3DLABS, 0x002c), },
239 { PCI_DEVICE(PCI_VENDOR_ID_3DLABS, 0x002d), },
240 { PCI_DEVICE(PCI_VENDOR_ID_3DLABS, 0x002e), },
241 { PCI_DEVICE(PCI_VENDOR_ID_3DLABS, 0x002f), },
242 { PCI_DEVICE(PCI_VENDOR_ID_3DLABS, 0x0030), },
243 { PCI_DEVICE(PCI_VENDOR_ID_3DLABS, 0x0031), },
244 { PCI_DEVICE(PCI_VENDOR_ID_3DLABS, 0x0032), },
245 { PCI_DEVICE(PCI_VENDOR_ID_3DLABS, 0x0033), },
246 { 0, }
247};
248
249static struct pci_driver s3d_driver = {
250 .name = "s3d",
251 .id_table = s3d_pci_table,
252 .probe = s3d_pci_register,
253 .remove = __devexit_p(s3d_pci_unregister),
254};
255
256static int __init s3d_init(void)
257{
258 if (fb_get_options("s3d", NULL))
259 return -ENODEV;
260
261 return pci_register_driver(&s3d_driver);
262}
263
264static void __exit s3d_exit(void)
265{
266 pci_unregister_driver(&s3d_driver);
267}
268
269module_init(s3d_init);
270module_exit(s3d_exit);
271
272MODULE_DESCRIPTION("framebuffer driver for Sun XVR-2500 graphics");
273MODULE_AUTHOR("David S. Miller <davem@davemloft.net>");
274MODULE_VERSION("1.0");
275MODULE_LICENSE("GPL");
276
