1 files changed, 105 insertions, 0 deletions
diff --git a/sys/arch/hppa/dev/lcd.c b/sys/arch/hppa/dev/lcd.c
new file mode 100644
index 00000000000..0444c12aa8b
--- /dev/null
+++ b/sys/arch/hppa/dev/lcd.c
@@ -0,0 +1,105 @@
+/*	$OpenBSD: lcd.c,v 1.1 2007/07/15 20:11:12 kettenis Exp $	*/
+
+/*
+ * Copyright (c) 2007 Mark Kettenis
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/param.h>
+#include <sys/device.h>
+#include <sys/kernel.h>
+#include <sys/systm.h>
+
+#include <machine/autoconf.h>
+#include <machine/bus.h>
+#include <machine/pdc.h>
+
+#define LCD_CLS		0x01
+#define LCD_HOME	0x02
+#define LCD_LOCATE(X, Y)	(((Y) & 1 ? 0xc0 : 0x80) | ((X) & 0x0f))
+
+struct lcd_softc {
+	struct device sc_dev;
+
+	bus_space_tag_t sc_iot;
+	bus_space_handle_t sc_cmdh, sc_datah;
+
+	u_int sc_delay;
+};
+
+int	lcd_match(struct device *, void *, void *);
+void	lcd_attach(struct device *, struct device *, void *);
+
+struct cfattach lcd_ca = {
+	sizeof(struct lcd_softc), lcd_match, lcd_attach
+};
+
+struct cfdriver lcd_cd = {
+	NULL, "lcd", DV_DULL
+};
+
+void	lcd_write(struct lcd_softc *, const char *);
+
+int
+lcd_match(struct device *parent, void *match, void *aux)
+{
+	struct confargs *ca = aux;
+
+	if (strcmp(ca->ca_name, "lcd") == 0)
+		return (1);
+
+	return (0);
+}
+
+void
+lcd_attach(struct device *parent, struct device *self, void *aux)
+{
+	struct lcd_softc *sc = (struct lcd_softc *)self;
+	struct confargs *ca = aux;
+	struct pdc_chassis_lcd *pdc_lcd = (void *)ca->ca_pdc_iodc_read;
+
+	sc->sc_iot = ca->ca_iot;
+	if (bus_space_map(sc->sc_iot, pdc_lcd->cmd_addr,
+		1, 0, &sc->sc_cmdh)) {
+		printf(": cannot map cmd register\n");
+		return;
+	}
+		
+	if (bus_space_map(sc->sc_iot, pdc_lcd->data_addr,
+		1, 0, &sc->sc_datah)) {
+		printf(": cannot map data register\n");
+		bus_space_unmap(sc->sc_iot, sc->sc_cmdh, 1);
+		return;
+	}
+
+	sc->sc_delay = pdc_lcd->delay;
+
+	bus_space_write_1(sc->sc_iot, sc->sc_cmdh, 0, LCD_CLS);
+	delay(100 * sc->sc_delay);
+
+	bus_space_write_1(sc->sc_iot, sc->sc_cmdh, 0, LCD_LOCATE(0, 0));
+	delay(sc->sc_delay);
+	lcd_write(sc, "OpenBSD/" MACHINE);
+
+	printf("\n");
+}
+
+void
+lcd_write(struct lcd_softc *sc, const char *str)
+{
+	while (*str) {
+		bus_space_write_1(sc->sc_iot, sc->sc_datah, 0, *str++);
+		delay(sc->sc_delay);
+	}
+}