1 // SPDX-License-Identifier: GPL-2.0-only
48 #define BWTWO_REGISTER_OFFSET 0x400000
78 #define BWTWO_SR_RES_MASK	0x70
79 #define BWTWO_SR_1600_1280	0x50
80 #define BWTWO_SR_1152_900_76_A	0x40
81 #define BWTWO_SR_1152_900_76_B	0x60
82 #define BWTWO_SR_ID_MASK	0x0f
83 #define BWTWO_SR_ID_MONO	0x02
84 #define BWTWO_SR_ID_MONO_ECL	0x03
85 #define BWTWO_SR_ID_MSYNC	0x04
86 #define BWTWO_SR_ID_NOCONN	0x0a
89 #define BWTWO_CTL_ENABLE_INTS   0x80
90 #define BWTWO_CTL_ENABLE_VIDEO  0x40
91 #define BWTWO_CTL_ENABLE_TIMING 0x20
92 #define BWTWO_CTL_ENABLE_CURCMP 0x10
93 #define BWTWO_CTL_XTAL_MASK     0x0C
94 #define BWTWO_CTL_DIVISOR_MASK  0x03
97 #define BWTWO_STAT_PENDING_INT  0x80
98 #define BWTWO_STAT_MSENSE_MASK  0x70
99 #define BWTWO_STAT_ID_MASK      0x0f
106 #define BW2_FLAG_BLANKED	0x00000001
112  *      bw2_blank - Optional function.  Blanks the display.
119 	struct bw2_par *par = (struct bw2_par *) info->par;  in bw2_blank()
120 	struct bw2_regs __iomem *regs = par->regs;  in bw2_blank()
124 	spin_lock_irqsave(&par->lock, flags);  in bw2_blank()
128 		val = sbus_readb(&regs->control);  in bw2_blank()
130 		sbus_writeb(val, &regs->control);  in bw2_blank()
131 		par->flags &= ~BW2_FLAG_BLANKED;  in bw2_blank()
138 		val = sbus_readb(&regs->control);  in bw2_blank()
140 		sbus_writeb(val, &regs->control);  in bw2_blank()
141 		par->flags |= BW2_FLAG_BLANKED;  in bw2_blank()
145 	spin_unlock_irqrestore(&par->lock, flags);  in bw2_blank()
147 	return 0;  in bw2_blank()
154 	{ .size = 0 }
159 	struct bw2_par *par = (struct bw2_par *)info->par;  in bw2_sbusfb_mmap()
162 				  info->fix.smem_start, info->fix.smem_len,  in bw2_sbusfb_mmap()
163 				  par->which_io,  in bw2_sbusfb_mmap()
170 				   FBTYPE_SUN2BW, 1, info->fix.smem_len);  in bw2_sbusfb_ioctl()
179 	strscpy(info->fix.id, "bwtwo", sizeof(info->fix.id));  in bw2_init_fix()
181 	info->fix.type = FB_TYPE_PACKED_PIXELS;  in bw2_init_fix()
182 	info->fix.visual = FB_VISUAL_MONO01;  in bw2_init_fix()
184 	info->fix.line_length = linebytes;  in bw2_init_fix()
186 	info->fix.accel = FB_ACCEL_SUN_BWTWO;  in bw2_init_fix()
190 	0x14, 0x8b,	0x15, 0x28,	0x16, 0x03,	0x17, 0x13,
191 	0x18, 0x7b,	0x19, 0x05,	0x1a, 0x34,	0x1b, 0x2e,
192 	0x1c, 0x00,	0x1d, 0x0a,	0x1e, 0xff,	0x1f, 0x01,
193 	0x10, 0x21,	0
197 	0x14, 0x65,	0x15, 0x1e,	0x16, 0x04,	0x17, 0x0c,
198 	0x18, 0x5e,	0x19, 0x03,	0x1a, 0xa7,	0x1b, 0x23,
199 	0x1c, 0x00,	0x1d, 0x08,	0x1e, 0xff,	0x1f, 0x01,
200 	0x10, 0x20,	0
204 	0x14, 0xbb,	0x15, 0x2b,	0x16, 0x03,	0x17, 0x13,
205 	0x18, 0xb0,	0x19, 0x03,	0x1a, 0xa6,	0x1b, 0x22,
206 	0x1c, 0x01,	0x1d, 0x05,	0x1e, 0xff,	0x1f, 0x01,
207 	0x10, 0x20,	0
211 	0x14, 0xb7,	0x15, 0x27,	0x16, 0x03,	0x17, 0x0f,
212 	0x18, 0xae,	0x19, 0x03,	0x1a, 0xae,	0x1b, 0x2a,
213 	0x1c, 0x01,	0x1d, 0x09,	0x1e, 0xff,	0x1f, 0x01,
214 	0x10, 0x24,	0
218 	0x14, 0xbb,	0x15, 0x2b,	0x16, 0x04,	0x17, 0x14,
219 	0x18, 0xae,	0x19, 0x03,	0x1a, 0xa8,	0x1b, 0x24,
220 	0x1c, 0x01,	0x1d, 0x05,	0x1e, 0xff,	0x1f, 0x01,
221 	0x10, 0x20,	0
227 	u8 status, mon;  in bw2_do_default_mode()  local
230 	status = sbus_readb(&par->regs->status);  in bw2_do_default_mode()
231 	mon = status & BWTWO_SR_RES_MASK;  in bw2_do_default_mode()
234 		if (mon == BWTWO_SR_1600_1280) {  in bw2_do_default_mode()
236 			info->var.xres = info->var.xres_virtual = 1600;  in bw2_do_default_mode()
237 			info->var.yres = info->var.yres_virtual = 1280;  in bw2_do_default_mode()
248 		if (mon == BWTWO_SR_1152_900_76_A ||  in bw2_do_default_mode()
249 		    mon == BWTWO_SR_1152_900_76_B)  in bw2_do_default_mode()
256 		return 0;  in bw2_do_default_mode()
261 		return -EINVAL;  in bw2_do_default_mode()
264 		u8 __iomem *regp = &((u8 __iomem *)par->regs)[p[0]];  in bw2_do_default_mode()
267 	return 0;  in bw2_do_default_mode()
272 	struct device_node *dp = op->dev.of_node;  in bw2_probe()
277 	info = framebuffer_alloc(sizeof(struct bw2_par), &op->dev);  in bw2_probe()
279 	err = -ENOMEM;  in bw2_probe()
282 	par = info->par;  in bw2_probe()
284 	spin_lock_init(&par->lock);  in bw2_probe()
286 	info->fix.smem_start = op->resource[0].start;  in bw2_probe()
287 	par->which_io = op->resource[0].flags & IORESOURCE_BITS;  in bw2_probe()
289 	sbusfb_fill_var(&info->var, dp, 1);  in bw2_probe()
291 					  info->var.xres);  in bw2_probe()
293 	info->var.red.length = info->var.green.length =  in bw2_probe()
294 		info->var.blue.length = info->var.bits_per_pixel;  in bw2_probe()
295 	info->var.red.offset = info->var.green.offset =  in bw2_probe()
296 		info->var.blue.offset = 0;  in bw2_probe()
298 	par->regs = of_ioremap(&op->resource[0], BWTWO_REGISTER_OFFSET,  in bw2_probe()
300 	if (!par->regs)  in bw2_probe()
309 	info->fix.smem_len = PAGE_ALIGN(linebytes * info->var.yres);  in bw2_probe()
311 	info->fbops = &bw2_ops;  in bw2_probe()
313 	info->screen_base = of_ioremap(&op->resource[0], 0,  in bw2_probe()
314 				       info->fix.smem_len, "bw2 ram");  in bw2_probe()
315 	if (!info->screen_base) {  in bw2_probe()
316 		err = -ENOMEM;  in bw2_probe()
325 	if (err < 0)  in bw2_probe()
328 	dev_set_drvdata(&op->dev, info);  in bw2_probe()
331 	       dp, par->which_io, info->fix.smem_start);  in bw2_probe()
333 	return 0;  in bw2_probe()
336 	of_iounmap(&op->resource[0], info->screen_base, info->fix.smem_len);  in bw2_probe()
339 	of_iounmap(&op->resource[0], par->regs, sizeof(struct bw2_regs));  in bw2_probe()
350 	struct fb_info *info = dev_get_drvdata(&op->dev);  in bw2_remove()
351 	struct bw2_par *par = info->par;  in bw2_remove()
355 	of_iounmap(&op->resource[0], par->regs, sizeof(struct bw2_regs));  in bw2_remove()
356 	of_iounmap(&op->resource[0], info->screen_base, info->fix.smem_len);  in bw2_remove()
381 		return -ENODEV;  in bw2_init()