From d11704fed5fd218b2ed26182de877bc6e5b513a4 Mon Sep 17 00:00:00 2001
From: Marcin Bukat <marcin.bukat@gmail.com>
Date: Tue, 23 Sep 2014 13:30:17 +0200
Subject: hwstub: Add atj213x support

Change-Id: Ic32200f9ab2c6977e503307a9cbe43a1328d0341
---
 utils/hwstub/stub/atj213x/target.c | 113 +++++++++++++++++++++++++++++++++++++
 1 file changed, 113 insertions(+)
 create mode 100644 utils/hwstub/stub/atj213x/target.c

(limited to 'utils/hwstub/stub/atj213x/target.c')

diff --git a/utils/hwstub/stub/atj213x/target.c b/utils/hwstub/stub/atj213x/target.c
new file mode 100644
index 0000000000..04762bca00
--- /dev/null
+++ b/utils/hwstub/stub/atj213x/target.c
@@ -0,0 +1,113 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ *
+ * Copyright (C) 2014 by Marcin Bukat
+ *
+ * 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; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#include "stddef.h"
+#include "target.h"
+#include "system.h"
+#include "logf.h"
+#include "atj213x.h"
+
+#define CORE_FREQ 7500000
+#define HZ  1000000
+
+static void backlight_init(void)
+{
+    /* backlight clock enable, select backlight clock as 32kHz */
+    CMU_FMCLK = (CMU_FMCLK & ~(CMU_FMCLK_BCLK_MASK)) | CMU_FMCLK_BCKE | CMU_FMCLK_BCLK_32K;
+
+    /* baclight enable */
+    PMU_CTL |= PMU_CTL_BL_EN;
+
+    /* pwm output, phase high, some initial duty cycle set as 24/32 */
+    PMU_CHG = ((PMU_CHG & ~PMU_CHG_PDOUT_MASK)| PMU_CHG_PBLS_PWM | PMU_CHG_PPHS_HIGH | PMU_CHG_PDUT(24));
+
+}
+
+void backlight_set(int level)
+{
+    /* set duty cycle in 1/32 units */
+    PMU_CHG = ((PMU_CHG & ~PMU_CHG_PDOUT_MASK) | PMU_CHG_PDUT(level));
+}
+
+void target_udelay(int us)
+{
+    unsigned int i = us * (CORE_FREQ / 2000000);
+    asm volatile (
+                  ".set noreorder    \n"
+                  "1:                \n"
+                  "bnez  %0, 1b   \n"
+                  "addiu %0, %0, -1   \n"
+                  ".set reorder      \n"
+                  : "=r" (i)
+                  : "0" (i)
+                  );
+}
+
+void target_mdelay(int ms)
+{
+    return target_udelay(ms * 1000);
+}
+
+void blink(int cnt)
+{
+    int i;
+
+    for (i=0; i<cnt; i++)
+    {
+        backlight_set(0);
+        target_mdelay(300);
+        backlight_set(24);
+        target_mdelay(300);
+    }
+}
+
+void target_init(void)
+{
+    RTC_WDCTL = (RTC_WDCTL & ~(1<<4))|(1<<6)|1; /* disable WDT */
+
+    /* Configure USB interrupt as IP6. IP6 is unmasked in crt0.S */
+    INTC_CFG0 = 0;
+    INTC_CFG1 = 0;
+    INTC_CFG2 = (1<<4);
+
+    /* mask all interrupts to avoid pending irq servicing */
+    INTC_MSK = 0;
+
+    backlight_init();
+}
+
+struct hwstub_target_desc_t __attribute__((aligned(2))) target_descriptor =
+{
+    sizeof(struct hwstub_target_desc_t),
+    HWSTUB_DT_TARGET,
+    HWSTUB_TARGET_ATJ,
+    "ATJ213X"
+};
+
+void target_get_desc(int desc, void **buffer)
+{
+    (void) desc;
+    *buffer = NULL;
+}
+
+void target_get_config_desc(void *buffer, int *size)
+{
+    (void) buffer;
+    (void) size;
+}
-- 
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