1 files changed, 132 insertions, 0 deletions

diff --git a/firmware/drivers/pcf50635.c b/firmware/drivers/pcf50635.c
new file mode 100644
index 0000000000..c436498670
--- /dev/null
+++ b/firmware/drivers/pcf50635.c
@@ -0,0 +1,132 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2009 by Rob Purchase
+ *
+ * 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 "pcf50635.h"
+#include "i2c.h"
+#include "system.h"
+
+#define PCF50635_ADDR 0xe6
+
+int pcf50635_write(int address, unsigned char val)
+{
+    unsigned char data[] = { address, val };
+    return i2c_write(PCF50635_ADDR, data, 2);
+}
+
+int pcf50635_write_multiple(int address, const unsigned char* buf, int count)
+{
+    int i;
+
+    for (i = 0; i < count; i++)
+        pcf50635_write(address + i, buf[i]);
+
+    return 0;
+}
+
+int pcf50635_read(int address)
+{
+    unsigned char val = -1;
+    i2c_readmem(PCF50635_ADDR, address, &val, 1);
+    return val;
+}
+
+int pcf50635_read_multiple(int address, unsigned char* buf, int count)
+{
+    return i2c_readmem(PCF50635_ADDR, address, buf, count);
+}
+
+void pcf50635_init(void)
+{
+#ifdef COWON_D2
+    /* Configure outputs as per OF */
+    pcf50635_write(PCF5063X_REG_DOWN1OUT, 0x13);  /* DOWN1 = 1.2V */
+    pcf50635_write(PCF5063X_REG_DOWN1CTL, 0x1e);  /* DOWN1 DVM step = max */
+    pcf50635_write(PCF5063X_REG_DOWN1ENA, 0x1);   /* DOWN1 enable */
+    pcf50635_write(PCF5063X_REG_DOWN2OUT, 0x2f);  /* DOWN2 = 1.8V */
+    pcf50635_write(PCF5063X_REG_DOWN2CTL, 0x1e);  /* DOWN2 DVM step = max */
+    pcf50635_write(PCF5063X_REG_DOWN2ENA, 0x1);   /* DOWN2 enable */
+    pcf50635_write(PCF5063X_REG_AUTOOUT,  0x5f);  /* AUTO = 3.0V */
+    pcf50635_write(PCF5063X_REG_AUTOENA,  0x1);   /* AUTO enable */
+    pcf50635_write(PCF5063X_REG_LDO1OUT,  0x18);  /* LDO1 = 3.3V */
+    pcf50635_write(PCF5063X_REG_LDO1ENA,  0x1);   /* LDO1 enable */
+    pcf50635_write(PCF5063X_REG_LDO2OUT,  0x15);  /* LDO2 = 3.0V */
+    pcf50635_write(PCF5063X_REG_LDO2ENA,  0x1);   /* LDO2 enable */
+    pcf50635_write(PCF5063X_REG_LDO3ENA,  0x0);   /* LDO3 disable */
+    pcf50635_write(PCF5063X_REG_LDO4OUT,  0x15);  /* LDO4 = 3.0V */
+    pcf50635_write(PCF5063X_REG_LDO4ENA,  0x1);   /* LDO4 enable */
+    pcf50635_write(PCF5063X_REG_LDO5OUT,  0x9);   /* LDO5 = 1.8V */
+    pcf50635_write(PCF5063X_REG_LDO5ENA,  0x1);   /* LDO4 enable */
+    pcf50635_write(PCF5063X_REG_LDO6OUT,  0xc);   /* LDO6 = 2.1V */
+    pcf50635_write(PCF5063X_REG_LDO6ENA,  0x1);   /* LDO4 enable */
+    pcf50635_write(PCF5063X_REG_HCLDOENA, 0x0);   /* HCLDO disable */
+
+    /* Configure automatic battery charging as per OF */
+    pcf50635_write(PCF5063X_REG_MBCC1,
+        pcf50635_read(PCF5063X_REG_MBCC1) | 7);   /* auto charge termination & resume */
+    pcf50635_write(PCF5063X_REG_MBCC2,    0xa8);  /* Vmax = 4.2V, Vbatcond = 2.7V, long debounce */
+    pcf50635_write(PCF5063X_REG_MBCC3,    0x2a);  /* precharge level = 16% */
+    pcf50635_write(PCF5063X_REG_MBCC4,    0x94);  /* fastcharge level = 58% */
+    pcf50635_write(PCF5063X_REG_MBCC5,    0xff);  /* fastcharge level (usb) = 100%  */
+    pcf50635_write(PCF5063X_REG_MBCC6,    0x4);   /* cutoff level = 12.5% */
+    pcf50635_write(PCF5063X_REG_MBCC7,    0xc1);  /* bat-sysimax = 2.2A, USB = 500mA */
+    pcf50635_write(PCF5063X_REG_BVMCTL,   0xe);   /* batok level = 3.4V */
+    
+    /* IRQ masks */
+    pcf50635_write(PCF5063X_REG_INT1M,    0x8a);  /* enable alarm, usbins, adpins */
+    pcf50635_write(PCF5063X_REG_INT2M,    0xff);  /* mask all */
+    pcf50635_write(PCF5063X_REG_INT3M,    0x7f);  /* enable onkey1s */
+    pcf50635_write(PCF5063X_REG_INT4M,    0xfd);  /* enable lowbat */
+    pcf50635_write(PCF5063X_REG_INT5M,    0xff);  /* mask all */
+
+    pcf50635_write(PCF5063X_REG_OOCMODE,  0x0);
+    pcf50635_write(PCF5063X_REG_OOCCTL,   0x2);   /* actphrst = phase 3 */
+    pcf50635_write(PCF5063X_REG_OOCWAKE,          /* adapter, usb, (rtc) wake */
+        (pcf50635_read(PCF5063X_REG_OOCWAKE) & 0x10) | 0xc1);
+
+    /* We don't care about the GPIOs, disable them */
+    pcf50635_write(PCF5063X_REG_GPIOCTL,  0x0);
+    pcf50635_write(PCF5063X_REG_GPIO1CFG, 0x0);
+    pcf50635_write(PCF5063X_REG_GPIO2CFG, 0x0);
+    pcf50635_write(PCF5063X_REG_GPIO3CFG, 0x0);
+#endif
+}
+
+void pcf50635_read_adc(int adc, short* res1, short* res2)
+{
+    int adcs1 = 0, adcs2 = 0, adcs3 = 0;
+
+    int level = disable_irq_save();
+
+    pcf50635_write(PCF5063X_REG_ADCC1, PCF5063X_ADCC1_ADCSTART | adc);
+
+    do {
+        adcs3 = pcf50635_read(PCF5063X_REG_ADCS3);
+    } while (!(adcs3 & PCF5063X_ADCS3_ADCRDY));
+
+    if (res1 != NULL) adcs1 = pcf50635_read(PCF5063X_REG_ADCS1);
+    if (res2 != NULL) adcs2 = pcf50635_read(PCF5063X_REG_ADCS2);
+
+    pcf50635_write(PCF5063X_REG_ADCC1, 0);
+
+    restore_interrupt(level);
+
+    if (res1 != NULL) *res1 = (adcs1 << 2) | (adcs3 & 3);
+    if (res2 != NULL) *res2 = (adcs2 << 2) | ((adcs3 & 0xC) >> 2);
+}