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Lines Matching defs:pfour

33  * Support routines for pfour framebuffers.
52 	volatile u_int32_t pfour;
56 	 * Some pfour framebuffers, e.g. the
61 	 * the pfour register by the time this
67 	pfour = *fb->fb_pfour;
70 	 * Use the pfour register to determine
77 	if ((PFOUR_ID(pfour) == PFOUR_ID_COLOR24) ||
78 	    (PFOUR_ID(pfour) == PFOUR_ID_FASTCOLOR))
81 	switch (PFOUR_SIZE(pfour)) {
128  * Probe for a pfour framebuffer.  Return values:
130  *	PFOUR_NOTPFOUR: framebuffer is not a pfour framebuffer
131  *	otherwise returns pfour ID
137 	volatile u_int32_t val, save, *pfour = va;
139 	/* Read the pfour register. */
140 	save = *pfour;
145 	 * not a pfour framebuffer.
148 	*pfour = (val ^ PFOUR_FBTYPE_MASK);
149 	if ((*pfour ^ val) & PFOUR_FBTYPE_MASK) {
150 		*pfour = save;
176 	volatile u_int32_t pfour;
178 	pfour = *fb->fb_pfour & ~(PFOUR_REG_INTCLR|PFOUR_REG_VIDEO);
179 	*fb->fb_pfour = pfour | (enable ? PFOUR_REG_VIDEO : 0);