mirror of
https://github.com/Telecominfraproject/OpenCellular.git
synced 2026-01-10 17:41:54 +00:00
fa7f71cd84
The rdd features are working (and it's better to test with hardware anyway), so just delete this command. BUG=chrome-os-partner:57408 BRANCH=none TEST=make buildall; try on Gru with and without CR50_DEV=1 Signed-off-by: Bill Richardson <wfrichar@chromium.org> Change-Id: Ifcfc8c8a0e61a9fe31d28f0c96bcb50c3e2b93b5 Reviewed-on: https://chromium-review.googlesource.com/391314 Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
84 lines
2.0 KiB
C
84 lines
2.0 KiB
C
/* Copyright 2016 The Chromium OS Authors. All rights reserved.
|
|
* Use of this source code is governed by a BSD-style license that can be
|
|
* found in the LICENSE file.
|
|
*/
|
|
|
|
#include "clock.h"
|
|
#include "console.h"
|
|
#include "hooks.h"
|
|
#include "rdd.h"
|
|
#include "registers.h"
|
|
#include "system.h"
|
|
#include "task.h"
|
|
#include "timer.h"
|
|
#include "usb_api.h"
|
|
|
|
#define CPRINTS(format, args...) cprints(CC_USB, format, ## args)
|
|
|
|
/*
|
|
* The default PROG_DEBUG_STATE_MAP value. Used to tell the to controller send
|
|
* an interrupt when CC1/2 are detected to be in the defined voltage range of a
|
|
* debug accessory.
|
|
*/
|
|
#define DETECT_DEBUG 0x420
|
|
#define DETECT_DISCONNECT (~DETECT_DEBUG & 0xffff)
|
|
|
|
int debug_cable_is_attached(void)
|
|
{
|
|
uint8_t cc1 = GREAD_FIELD(RDD, INPUT_PIN_VALUES, CC1);
|
|
uint8_t cc2 = GREAD_FIELD(RDD, INPUT_PIN_VALUES, CC2);
|
|
|
|
return (cc1 == cc2 && (cc1 == 3 || cc1 == 1));
|
|
}
|
|
|
|
void rdd_interrupt(void)
|
|
{
|
|
int is_debug;
|
|
|
|
delay_sleep_by(1 * SECOND);
|
|
|
|
is_debug = debug_cable_is_attached();
|
|
|
|
if (is_debug) {
|
|
disable_sleep(SLEEP_MASK_RDD);
|
|
|
|
CPRINTS("Debug Accessory connected");
|
|
|
|
/* Detect when debug cable is disconnected */
|
|
GWRITE(RDD, PROG_DEBUG_STATE_MAP, DETECT_DISCONNECT);
|
|
|
|
rdd_attached();
|
|
} else if (!is_debug) {
|
|
CPRINTS("Debug Accessory disconnected");
|
|
|
|
/* Detect when debug cable is connected */
|
|
GWRITE(RDD, PROG_DEBUG_STATE_MAP, DETECT_DEBUG);
|
|
|
|
rdd_detached();
|
|
|
|
cflush();
|
|
enable_sleep(SLEEP_MASK_RDD);
|
|
}
|
|
|
|
/* Clear interrupt */
|
|
GWRITE_FIELD(RDD, INT_STATE, INTR_DEBUG_STATE_DETECTED, 1);
|
|
}
|
|
DECLARE_IRQ(GC_IRQNUM_RDD0_INTR_DEBUG_STATE_DETECTED_INT, rdd_interrupt, 1);
|
|
|
|
void rdd_init(void)
|
|
{
|
|
/* Enable RDD */
|
|
clock_enable_module(MODULE_RDD, 1);
|
|
GWRITE(RDD, POWER_DOWN_B, 1);
|
|
|
|
GWRITE(RDD, PROG_DEBUG_STATE_MAP, DETECT_DEBUG);
|
|
|
|
/* Initialize the debug state based on the current cc values */
|
|
rdd_interrupt();
|
|
|
|
/* Enable RDD interrupts */
|
|
task_enable_irq(GC_IRQNUM_RDD0_INTR_DEBUG_STATE_DETECTED_INT);
|
|
GWRITE_FIELD(RDD, INT_ENABLE, INTR_DEBUG_STATE_DETECTED, 1);
|
|
}
|
|
DECLARE_HOOK(HOOK_INIT, rdd_init, HOOK_PRIO_DEFAULT);
|