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Changed to use sys_readbios to get screen parameters. Added safecopy version

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to get log messages.
This commit is contained in:
Philip Homburg
2006-07-10 12:37:39 +00:00
parent a3fce7ce8d
commit ee09d50403
3 changed files with 32 additions and 8 deletions
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drivers/tty/console.c
+28 -8
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@@ -938,14 +938,14 @@ tty_t *tp;
if (! vdu_initialized++) {
/* How about error checking? What to do on failure??? */
s=sys_vircopy(SELF, BIOS_SEG, (vir_bytes) VDU_SCREEN_COLS_ADDR,
SELF, D, (vir_bytes) &bios_columns, VDU_SCREEN_COLS_SIZE);
s=sys_vircopy(SELF, BIOS_SEG, (vir_bytes) VDU_CRT_BASE_ADDR,
SELF, D, (vir_bytes) &bios_crtbase, VDU_CRT_BASE_SIZE);
s=sys_vircopy(SELF, BIOS_SEG, (vir_bytes) VDU_SCREEN_ROWS_ADDR,
SELF, D, (vir_bytes) &bios_rows, VDU_SCREEN_ROWS_SIZE);
s=sys_vircopy(SELF, BIOS_SEG, (vir_bytes) VDU_FONTLINES_ADDR,
SELF, D, (vir_bytes) &bios_fontlines, VDU_FONTLINES_SIZE);
s=sys_readbios(VDU_SCREEN_COLS_ADDR, &bios_columns,
VDU_SCREEN_COLS_SIZE);
s=sys_readbios(VDU_CRT_BASE_ADDR, &bios_crtbase,
VDU_CRT_BASE_SIZE);
s=sys_readbios( VDU_SCREEN_ROWS_ADDR, &bios_rows,
VDU_SCREEN_ROWS_SIZE);
s=sys_readbios(VDU_FONTLINES_ADDR, &bios_fontlines,
VDU_FONTLINES_SIZE);
vid_port = bios_crtbase;
scr_width = bios_columns;
@@ -1130,6 +1130,26 @@ message *m_ptr; /* pointer to request message */
send(m_ptr->m_source, m_ptr);
}
/*===========================================================================*
* do_get_kmess_s *
*===========================================================================*/
PUBLIC void do_get_kmess_s(m_ptr)
message *m_ptr; /* pointer to request message */
{
/* Provide the log device with debug output */
cp_grant_id_t gid;
int r;
gid = m_ptr->GETKM_GRANT;
r= OK;
if (sys_safecopyto(m_ptr->m_source, gid, 0, (vir_bytes)&kmess, sizeof(kmess),
D) != OK) {
r = EFAULT;
}
m_ptr->m_type = r;
send(m_ptr->m_source, m_ptr);
}
/*===========================================================================*
* cons_putk *
*===========================================================================*/