Long ago we agreed on kicking the _direct appendix because everything in

coreboot is direct. This patch does it.
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5586 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

1 files changed, 87 insertions, 0 deletions

diff --git a/src/console/usbdebug_console.c b/src/console/usbdebug_console.c
new file mode 100644
index 0000000000..2e71cc3ea3
--- /dev/null
+++ b/src/console/usbdebug_console.c
@@ -0,0 +1,87 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
+ */
+
+#include <string.h>
+#include <console/console.h>
+#include <usbdebug.h>
+#include <pc80/mc146818rtc.h>
+
+static struct ehci_debug_info dbg_info;
+
+void set_ehci_base(unsigned ehci_base)
+{
+	unsigned diff;
+
+	if (!dbg_info.ehci_debug)
+		return;
+
+	diff = dbg_info.ehci_caps - ehci_base;
+	dbg_info.ehci_regs -= diff;
+	dbg_info.ehci_debug -= diff;
+	dbg_info.ehci_caps = ehci_base;
+}
+
+void set_ehci_debug(unsigned ehci_debug)
+{
+	dbg_info.ehci_debug = ehci_debug;
+}
+
+unsigned get_ehci_debug(void)
+{
+	return dbg_info.ehci_debug;
+}
+
+static void dbgp_init(void)
+{
+	struct ehci_debug_info *dbg_infox;
+
+	/* At this point, all we have to do is copy the fixed address
+	 * debug_info data structure to our version defined above. */
+
+	dbg_infox = (struct ehci_debug_info *)
+		((CONFIG_RAMTOP) - sizeof(struct ehci_debug_info));
+
+	memcpy(&dbg_info, dbg_infox, sizeof(struct ehci_debug_info));
+}
+
+static void dbgp_tx_byte(unsigned char data)
+{
+	if (dbg_info.ehci_debug)
+		dbgp_bulk_write_x(&dbg_info, &data, 1);
+}
+
+static unsigned char dbgp_rx_byte(void)
+{
+	unsigned char data = 0xff;
+
+	if (dbg_info.ehci_debug)
+		dbgp_bulk_read_x(&dbg_info, &data, 1);
+
+	return data;
+}
+
+static int dbgp_tst_byte(void)
+{
+	return dbg_info.ehci_debug;
+}
+
+static const struct console_driver usbdebug_direct_console __console = {
+	.init     = dbgp_init,
+	.tx_byte  = dbgp_tx_byte,
+	.rx_byte  = dbgp_rx_byte,
+	.tst_byte = dbgp_tst_byte,
+};