mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-20 11:11:24 +00:00
365 lines
8.8 KiB
C
365 lines
8.8 KiB
C
/*-
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* $Id:$
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*/
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#include "sc.h"
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#include "opt_syscons.h"
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#if NSC > 0
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#include <machine/console.h>
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#include <machine/md_var.h>
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#include <dev/fb/fbreg.h>
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#include <dev/syscons/syscons.h>
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#define ATTR_OFFSET 0x2000
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#define vtb_wrap(vtb, at, offset) \
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(((at) + (offset) + (vtb)->vtb_size)%(vtb)->vtb_size)
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static u_int16_t at2pc98(u_int16_t attr);
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static vm_offset_t sc_vtb_attr_pointer(sc_vtb_t *vtb, int at);
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static u_int16_t
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at2pc98(u_int16_t attr)
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{
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static u_char ibmpc_to_pc98[16] = {
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0x01, 0x21, 0x81, 0xa1, 0x41, 0x61, 0xc1, 0xe1,
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0x09, 0x29, 0x89, 0xa9, 0x49, 0x69, 0xc9, 0xe9
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};
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static u_char ibmpc_to_pc98rev[16] = {
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0x05, 0x25, 0x85, 0xa5, 0x45, 0x65, 0xc5, 0xe5,
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0x0d, 0x2d, 0x8d, 0xad, 0x4d, 0x6d, 0xcd, 0xed
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};
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u_char fg_at, bg_at;
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u_int16_t at;
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if (attr & 0x00FF)
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return (attr);
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fg_at = ((attr >> 8) & 0x0F);
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bg_at = ((attr >> 12) & 0x0F);
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if (bg_at) {
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if (bg_at & 0x08) {
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if (bg_at & 0x07) {
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/* reverse & blink */
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at = ibmpc_to_pc98rev[bg_at] | 0x02;
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} else {
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/* normal & blink */
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at = ibmpc_to_pc98[fg_at] | 0x02;
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}
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} else {
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/* reverse */
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at = ibmpc_to_pc98rev[bg_at];
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}
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} else {
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/* normal */
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at = ibmpc_to_pc98[fg_at];
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}
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at |= attr;
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return (at);
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}
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void
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sc_vtb_init(sc_vtb_t *vtb, int type, int cols, int rows, void *buf, int wait)
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{
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vtb->vtb_flags = 0;
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vtb->vtb_type = type;
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vtb->vtb_cols = cols;
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vtb->vtb_rows = rows;
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vtb->vtb_size = cols*rows;
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vtb->vtb_buffer = NULL;
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vtb->vtb_tail = 0;
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switch (type) {
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case VTB_MEMORY:
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case VTB_RINGBUFFER:
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if ((buf == NULL) && (cols*rows != 0)) {
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vtb->vtb_buffer =
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(vm_offset_t)malloc(cols*rows*sizeof(u_int16_t)*2,
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M_DEVBUF,
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(wait) ? M_WAITOK : M_NOWAIT);
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if (vtb->vtb_buffer != NULL) {
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bzero((void *)sc_vtb_pointer(vtb, 0),
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cols*rows*sizeof(u_int16_t)*2);
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}
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} else {
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vtb->vtb_buffer = (vm_offset_t)buf;
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}
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vtb->vtb_flags |= VTB_VALID;
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break;
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case VTB_FRAMEBUFFER:
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vtb->vtb_buffer = (vm_offset_t)buf;
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vtb->vtb_flags |= VTB_VALID;
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break;
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default:
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break;
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}
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}
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void
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sc_vtb_destroy(sc_vtb_t *vtb)
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{
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vm_offset_t p;
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vtb->vtb_flags = 0;
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vtb->vtb_cols = 0;
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vtb->vtb_rows = 0;
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vtb->vtb_size = 0;
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vtb->vtb_tail = 0;
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p = vtb->vtb_buffer;
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vtb->vtb_buffer = NULL;
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switch (vtb->vtb_type) {
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case VTB_MEMORY:
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case VTB_RINGBUFFER:
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if (p != NULL)
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free((void *)p, M_DEVBUF);
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break;
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default:
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break;
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}
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vtb->vtb_type = VTB_INVALID;
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}
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size_t
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sc_vtb_size(int cols, int rows)
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{
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return (size_t)(cols*rows*sizeof(u_int16_t)*2);
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}
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int
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sc_vtb_getc(sc_vtb_t *vtb, int at)
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{
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if (vtb->vtb_type == VTB_FRAMEBUFFER)
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return (readw(sc_vtb_pointer(vtb, at)) & 0x00ff);
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else
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return (*(u_int16_t *)sc_vtb_pointer(vtb, at) & 0x00ff);
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}
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int
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sc_vtb_geta(sc_vtb_t *vtb, int at)
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{
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if (vtb->vtb_type == VTB_FRAMEBUFFER)
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return (readw(sc_vtb_attr_pointer(vtb, at)) & 0x00ff);
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else
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return (*(u_int16_t *)sc_vtb_attr_pointer(vtb, at) & 0x00ff);
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}
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void
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sc_vtb_putc(sc_vtb_t *vtb, int at, int c, int a)
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{
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if (vtb->vtb_type == VTB_FRAMEBUFFER) {
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writew(sc_vtb_pointer(vtb, at), c);
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writew(sc_vtb_attr_pointer(vtb, at), at2pc98(a));
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} else {
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*(u_int16_t *)sc_vtb_pointer(vtb, at) = c;
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*(u_int16_t *)sc_vtb_attr_pointer(vtb, at) = at2pc98(a);
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}
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}
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vm_offset_t
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sc_vtb_putchar(sc_vtb_t *vtb, vm_offset_t p, int c, int a)
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{
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if (vtb->vtb_type == VTB_FRAMEBUFFER) {
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writew(p, c);
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writew(p + ATTR_OFFSET, at2pc98(a));
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} else {
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*(u_int16_t *)p = c;
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*(u_int16_t *)(p + vtb->vtb_size*sizeof(u_int16_t)) = at2pc98(a);
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}
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return (p + sizeof(u_int16_t));
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}
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vm_offset_t
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sc_vtb_pointer(sc_vtb_t *vtb, int at)
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{
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return (vtb->vtb_buffer + sizeof(u_int16_t)*(at));
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}
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static vm_offset_t
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sc_vtb_attr_pointer(sc_vtb_t *vtb, int at)
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{
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return (vtb->vtb_buffer + sizeof(u_int16_t)*(at)
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+ ((vtb->vtb_type == VTB_FRAMEBUFFER) ?
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ATTR_OFFSET : vtb->vtb_size*sizeof(u_int16_t)));
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}
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int
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sc_vtb_pos(sc_vtb_t *vtb, int pos, int offset)
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{
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return ((pos + offset + vtb->vtb_size)%vtb->vtb_size);
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}
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void
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sc_vtb_clear(sc_vtb_t *vtb, int c, int attr)
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{
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if (vtb->vtb_type == VTB_FRAMEBUFFER) {
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fillw_io(c, sc_vtb_pointer(vtb, 0), vtb->vtb_size);
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fillw_io(at2pc98(attr), sc_vtb_attr_pointer(vtb, 0), vtb->vtb_size);
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} else {
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fillw(c, (void *)sc_vtb_pointer(vtb, 0), vtb->vtb_size);
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fillw(at2pc98(attr), (void *)sc_vtb_attr_pointer(vtb, 0), vtb->vtb_size);
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}
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}
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void
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sc_vtb_copy(sc_vtb_t *vtb1, int from, sc_vtb_t *vtb2, int to, int count)
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{
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if (vtb2->vtb_type == VTB_FRAMEBUFFER) {
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bcopy_toio(sc_vtb_pointer(vtb1, from),
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sc_vtb_pointer(vtb2, to),
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count*sizeof(u_int16_t));
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bcopy_toio(sc_vtb_attr_pointer(vtb1, from),
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sc_vtb_attr_pointer(vtb2, to),
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count*sizeof(u_int16_t));
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} else if (vtb1->vtb_type == VTB_FRAMEBUFFER) {
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bcopy_fromio(sc_vtb_pointer(vtb1, from),
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sc_vtb_pointer(vtb2, to),
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count*sizeof(u_int16_t));
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bcopy_fromio(sc_vtb_attr_pointer(vtb1, from),
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sc_vtb_attr_pointer(vtb2, to),
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count*sizeof(u_int16_t));
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} else {
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bcopy((void *)sc_vtb_pointer(vtb1, from),
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(void *)sc_vtb_pointer(vtb2, to),
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count*sizeof(u_int16_t));
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bcopy((void *)sc_vtb_attr_pointer(vtb1, from),
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(void *)sc_vtb_attr_pointer(vtb2, to),
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count*sizeof(u_int16_t));
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}
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}
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void
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sc_vtb_append(sc_vtb_t *vtb1, int from, sc_vtb_t *vtb2, int count)
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{
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int len;
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if (vtb2->vtb_type != VTB_RINGBUFFER)
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return;
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while (count > 0) {
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len = imin(count, vtb2->vtb_size - vtb2->vtb_tail);
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if (vtb1->vtb_type == VTB_FRAMEBUFFER) {
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bcopy_fromio(sc_vtb_pointer(vtb1, from),
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sc_vtb_pointer(vtb2, vtb2->vtb_tail),
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len*sizeof(u_int16_t));
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bcopy_fromio(sc_vtb_attr_pointer(vtb1, from),
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sc_vtb_attr_pointer(vtb2, vtb2->vtb_tail),
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len*sizeof(u_int16_t));
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} else {
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bcopy((void *)sc_vtb_pointer(vtb1, from),
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(void *)sc_vtb_pointer(vtb2, vtb2->vtb_tail),
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len*sizeof(u_int16_t));
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bcopy((void *)sc_vtb_attr_pointer(vtb1, from),
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(void *)sc_vtb_attr_pointer(vtb2, vtb2->vtb_tail),
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len*sizeof(u_int16_t));
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}
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from += len;
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count -= len;
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vtb2->vtb_tail = vtb_wrap(vtb2, vtb2->vtb_tail, len);
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}
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}
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void
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sc_vtb_seek(sc_vtb_t *vtb, int pos)
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{
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vtb->vtb_tail = pos%vtb->vtb_size;
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}
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void
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sc_vtb_erase(sc_vtb_t *vtb, int at, int count, int c, int attr)
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{
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if (at + count > vtb->vtb_size)
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count = vtb->vtb_size - at;
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if (vtb->vtb_type == VTB_FRAMEBUFFER) {
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fillw_io(c, sc_vtb_pointer(vtb, at), count);
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fillw_io(at2pc98(attr), sc_vtb_attr_pointer(vtb, at), count);
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} else {
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fillw(c, (void *)sc_vtb_pointer(vtb, at), count);
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fillw(at2pc98(attr), (void *)sc_vtb_attr_pointer(vtb, at), count);
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}
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}
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void
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sc_vtb_delete(sc_vtb_t *vtb, int at, int count, int c, int attr)
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{
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int len;
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if (at + count > vtb->vtb_size)
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count = vtb->vtb_size - at;
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len = vtb->vtb_size - at - count;
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if (len > 0) {
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if (vtb->vtb_type == VTB_FRAMEBUFFER) {
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bcopy_io(sc_vtb_pointer(vtb, at + count),
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sc_vtb_pointer(vtb, at),
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len*sizeof(u_int16_t));
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bcopy_io(sc_vtb_attr_pointer(vtb, at + count),
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sc_vtb_attr_pointer(vtb, at),
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len*sizeof(u_int16_t));
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} else {
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bcopy((void *)sc_vtb_pointer(vtb, at + count),
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(void *)sc_vtb_pointer(vtb, at),
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len*sizeof(u_int16_t));
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bcopy((void *)sc_vtb_attr_pointer(vtb, at + count),
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(void *)sc_vtb_attr_pointer(vtb, at),
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len*sizeof(u_int16_t));
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}
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}
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if (vtb->vtb_type == VTB_FRAMEBUFFER) {
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fillw_io(c, sc_vtb_pointer(vtb, at + len),
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vtb->vtb_size - at - len);
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fillw_io(at2pc98(attr),
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sc_vtb_attr_pointer(vtb, at + len),
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vtb->vtb_size - at - len);
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} else {
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fillw(c, (void *)sc_vtb_pointer(vtb, at + len),
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vtb->vtb_size - at - len);
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fillw(at2pc98(attr),
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(void *)sc_vtb_attr_pointer(vtb, at + len),
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vtb->vtb_size - at - len);
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}
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}
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void
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sc_vtb_ins(sc_vtb_t *vtb, int at, int count, int c, int attr)
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{
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if (at + count > vtb->vtb_size) {
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count = vtb->vtb_size - at;
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} else {
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if (vtb->vtb_type == VTB_FRAMEBUFFER) {
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bcopy_io(sc_vtb_pointer(vtb, at),
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sc_vtb_pointer(vtb, at + count),
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(vtb->vtb_size - at - count)*sizeof(u_int16_t));
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bcopy_io(sc_vtb_attr_pointer(vtb, at),
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sc_vtb_attr_pointer(vtb, at + count),
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(vtb->vtb_size - at - count)*sizeof(u_int16_t));
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} else {
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bcopy((void *)sc_vtb_pointer(vtb, at),
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(void *)sc_vtb_pointer(vtb, at + count),
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(vtb->vtb_size - at - count)*sizeof(u_int16_t));
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bcopy((void *)sc_vtb_attr_pointer(vtb, at),
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(void *)sc_vtb_attr_pointer(vtb, at + count),
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(vtb->vtb_size - at - count)*sizeof(u_int16_t));
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}
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}
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if (vtb->vtb_type == VTB_FRAMEBUFFER) {
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fillw_io(c, sc_vtb_pointer(vtb, at), count);
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fillw_io(at2pc98(attr),
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sc_vtb_attr_pointer(vtb, at), count);
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} else {
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fillw(c, (void *)sc_vtb_pointer(vtb, at), count);
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fillw(at2pc98(attr),
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(void *)sc_vtb_attr_pointer(vtb, at), count);
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}
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}
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#endif /* NSC */
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