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Adapt driver to final CPLD implementation. (Felix Deichmann)

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This commit is contained in:
christos 2016-09-13 16:54:26 +00:00
parent ea8949d86b
commit 9d57a94cea
1 changed files with 49 additions and 8 deletions
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57
sys/dev/tc/tcu.c
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@ -1,4 +1,4 @@
/* $NetBSD: tcu.c,v 1.1 2016/08/11 09:05:42 christos Exp $ */
/* $NetBSD: tcu.c,v 1.2 2016/09/13 16:54:26 christos Exp $ */
/*-
* Copyright (c) 2016, Felix Deichmann
@ -31,7 +31,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: tcu.c,v 1.1 2016/08/11 09:05:42 christos Exp $");
__KERNEL_RCSID(0, "$NetBSD: tcu.c,v 1.2 2016/09/13 16:54:26 christos Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -48,11 +48,15 @@ __KERNEL_RCSID(0, "$NetBSD: tcu.c,v 1.1 2016/08/11 09:05:42 christos Exp $");
#include "slhci_tcu.h"
#define TCU_GPIO_NPINS 8
#define TCU_GPIO_OFFS 0x80
#define TCU_GPIO_SIZE (3 * 4)
#define TCU_GPIO_DIR 0x0
#define TCU_GPIO_IN 0x4
#define TCU_GPIO_OUT 0x8
#define TCU_CPLD_OFFS 0x80
#define TCU_CPLD_SIZE (4 * 4)
#define TCU_CFG 0x0
#define TCU_CFG_RUN __BIT(7) /* write-only */
#define TCU_GPIO_DIR 0x4
#define TCU_GPIO_IN 0x8
#define TCU_GPIO_OUT 0xc
struct tcu_softc {
#if NGPIO > 0
@ -94,8 +98,45 @@ tcu_match(device_t parent, cfdata_t cf, void *aux)
static void
tcu_attach(device_t parent, device_t self, void *aux)
{
struct tc_attach_args *ta = aux;
bus_space_tag_t iot = ta->ta_memt;
bus_space_handle_t ioh;
int error;
uint8_t cfg;
char buf[30];
printf(": TC-USB\n");
error = bus_space_map(iot, ta->ta_addr + TCU_CPLD_OFFS, TCU_CPLD_SIZE,
0, &ioh);
if (error) {
aprint_error_dev(self, "bus_space_map() failed (%d)\n", error);
return;
}
/*
* Force reset in case system didn't. SL811 reset pulse and hold time
* must be min. 16 clocks long (at 48 MHz clock) each.
*/
bus_space_write_1(iot, ioh, TCU_CFG, 0);
DELAY(1000);
bus_space_write_1(iot, ioh, TCU_CFG, TCU_CFG_RUN);
DELAY(1000);
cfg = bus_space_read_1(iot, ioh, TCU_CFG);
bus_space_unmap(iot, ioh, TCU_CPLD_SIZE);
/* Display DIP switch configuration. */
(void)snprintb(buf, sizeof(buf),
"\177\020"
"b\3S1-1\0"
"b\2S1-2\0"
"b\1S1-3\0"
"b\0S1-4\0"
"\0", cfg);
aprint_normal_dev(self, "config %s\n", buf);
#if NSLHCI_TCU > 0
/* Attach slhci. */
(void)config_found_ia(self, "tcu", aux, tcu_print);
@ -132,7 +173,7 @@ tcu_gpio_attach(device_t parent, device_t self, void *aux)
sc->sc_gpio_iot = iot;
error = bus_space_map(iot, ta->ta_addr + TCU_GPIO_OFFS, TCU_GPIO_SIZE,
error = bus_space_map(iot, ta->ta_addr + TCU_CPLD_OFFS, TCU_CPLD_SIZE,
0, &sc->sc_gpio_ioh);
if (error) {
aprint_error_dev(self, "bus_space_map() failed (%d)\n", error);