2  * linux/include/asm-arm/hardware/amba_clcd.h -- Integrator LCD panel.
13 #include <linux/amba/clcd-regs.h>
45 	signed short		width;	/* width in mm */  member
46 	signed short		height;	/* height in mm */
58 	 * and the panel we need to know this and not try to
76  * the board-type specific routines
93 	 * Compulsory.  Decode fb->fb.var into regs->*.  In the case of
94 	 * fixed timing, set regs->* to the register values required.
132 	struct clcd_panel	*panel;  member
145 	struct fb_var_screeninfo *var = &fb->fb.var;  in clcdfb_decode()
151 	val = ((var->xres / 16) - 1) << 2;  in clcdfb_decode()
152 	val |= (var->hsync_len - 1) << 8;  in clcdfb_decode()
153 	val |= (var->right_margin - 1) << 16;  in clcdfb_decode()
154 	val |= (var->left_margin - 1) << 24;  in clcdfb_decode()
155 	regs->tim0 = val;  in clcdfb_decode()
157 	val = var->yres;  in clcdfb_decode()
158 	if (fb->panel->cntl & CNTL_LCDDUAL)  in clcdfb_decode()
160 	val -= 1;  in clcdfb_decode()
161 	val |= (var->vsync_len - 1) << 10;  in clcdfb_decode()
162 	val |= var->lower_margin << 16;  in clcdfb_decode()
163 	val |= var->upper_margin << 24;  in clcdfb_decode()
164 	regs->tim1 = val;  in clcdfb_decode()
166 	val = fb->panel->tim2;  in clcdfb_decode()
167 	val |= var->sync & FB_SYNC_HOR_HIGH_ACT  ? 0 : TIM2_IHS;  in clcdfb_decode()
168 	val |= var->sync & FB_SYNC_VERT_HIGH_ACT ? 0 : TIM2_IVS;  in clcdfb_decode()
170 	cpl = var->xres_virtual;  in clcdfb_decode()
171 	if (fb->panel->cntl & CNTL_LCDTFT)	  /* TFT */  in clcdfb_decode()
173 	else if (!var->grayscale)		  /* STN color */  in clcdfb_decode()
175 	else if (fb->panel->cntl & CNTL_LCDMONO8) /* STN monochrome, 8bit */  in clcdfb_decode()
180 	regs->tim2 = val | ((cpl - 1) << 16);  in clcdfb_decode()
182 	regs->tim3 = fb->panel->tim3;  in clcdfb_decode()
184 	val = fb->panel->cntl;  in clcdfb_decode()
185 	if (var->grayscale)  in clcdfb_decode()
188 	if (fb->panel->caps && fb->board->caps && var->bits_per_pixel >= 16) {  in clcdfb_decode()
190 		 * if board and panel supply capabilities, we can support  in clcdfb_decode()
198 		if (var->red.offset == 0)  in clcdfb_decode()
202 		if (fb->panel->bgr_connection)  in clcdfb_decode()
206 	switch (var->bits_per_pixel) {  in clcdfb_decode()
225 		if (amba_part(fb->dev) == 0x110 ||  in clcdfb_decode()
226 		    var->green.length == 5)  in clcdfb_decode()
228 		else if (var->green.length == 6)  in clcdfb_decode()
238 	regs->cntl = val;  in clcdfb_decode()
239 	regs->pixclock = var->pixclock;  in clcdfb_decode()
244 	var->xres_virtual = var->xres = (var->xres + 15) & ~15;  in clcdfb_check()
245 	var->yres_virtual = var->yres = (var->yres + 1) & ~1;  in clcdfb_check()
247 #define CHECK(e,l,h) (var->e < l || var->e > h)  in clcdfb_check()
251 	    var->xres > 4096 ||  in clcdfb_check()
252 	    var->lower_margin > 255 ||		/* back porch */  in clcdfb_check()
253 	    var->upper_margin > 255 ||		/* front porch */  in clcdfb_check()
254 	    var->vsync_len > 32 ||  in clcdfb_check()
255 	    var->yres > 1024)  in clcdfb_check()
256 		return -EINVAL;  in clcdfb_check()
259 	/* single panel mode: PCD = max(PCD, 1) */  in clcdfb_check()
260 	/* dual panel mode: PCD = max(PCD, 5) */  in clcdfb_check()
264 	 * we can only do non-interlaced video.  in clcdfb_check()
266 	if (var->grayscale != fb->fb.var.grayscale ||  in clcdfb_check()
267 	    (var->vmode & FB_VMODE_MASK) != FB_VMODE_NONINTERLACED)  in clcdfb_check()
268 		return -EINVAL;  in clcdfb_check()
270 #define CHECK(e) (var->e != fb->fb.var.e)  in clcdfb_check()
271 	if (fb->panel->fixedtimings &&  in clcdfb_check()
283 		return -EINVAL;  in clcdfb_check()
286 	var->nonstd = 0;  in clcdfb_check()
287 	var->accel_flags = 0;  in clcdfb_check()