firmware/target/arm/imx31/gigabeat-s/mc13783-gigabeat-s.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (c) 2008 by Michael Sevakis
  11  *
  12  * Gigabeat S MC13783 event descriptions
  13  *
  14  * This program is free software; you can redistribute it and/or
  15  * modify it under the terms of the GNU General Public License
  16  * as published by the Free Software Foundation; either version 2
  17  * of the License, or (at your option) any later version.
  18  *
  19  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  20  * KIND, either express or implied.
  21  *
  22  ****************************************************************************/
  23 #include "config.h"
  24 #include "system.h"
  25 #include "spi-imx31.h"
  26 #include "mc13783.h"
  27 #include "mc13783-target.h"
  28 #include "adc-target.h"
  29 #include "button-target.h"
  30 #include "usb-target.h"
  31 #include "power-gigabeat-s.h"
  32 #include "powermgmt-target.h"
  33
  34 /* Gigabeat S mc13783 serial interface node. */
  35
  36 /* This is all based on communicating with the MC13783 PMU which is on
  37  * CSPI2 with the chip select at 0. The LCD controller resides on
  38  * CSPI3 cs1, but we have no idea how to communicate to it */
  39 struct spi_node mc13783_spi =
  40 {
  41     CSPI2_NUM,                     /* CSPI module 2 */
  42     CSPI_CONREG_CHIP_SELECT_SS0 |  /* Chip select 0 */
  43     CSPI_CONREG_DRCTL_DONT_CARE |  /* Don't care about CSPI_RDY */
  44     CSPI_CONREG_DATA_RATE_DIV_32 | /* Clock = IPG_CLK/32 = 2,062,500Hz. */
  45     CSPI_BITCOUNT(32-1) |          /* All 32 bits are to be transferred */
  46     CSPI_CONREG_SSPOL |            /* SS active high */
  47     CSPI_CONREG_SSCTL |            /* Negate SS between SPI bursts */
  48     CSPI_CONREG_MODE,              /* Master mode */
  49     0,                             /* SPI clock - no wait states */
  50 };
  51
  52
  53 /* Gigabeat S definitions for static MC13783 event registration */
  54
  55 const struct mc13783_event mc13783_events[MC13783_NUM_EVENTS] =
  56 {
  57     [MC13783_ADCDONE_EVENT] = /* ADC conversion complete */
  58     {
  59         .set  = MC13783_EVENT_SET0,
  60         .mask = MC13783_ADCDONEM,
  61         .callback = adc_done,
  62     },
  63     [MC13783_ONOFD1_EVENT] = /* Power button */
  64     {
  65         .set  = MC13783_EVENT_SET1,
  66         .mask = MC13783_ONOFD1M,
  67         .callback = button_power_event,
  68     },
  69     [MC13783_SE1_EVENT] = /* Main charger detection */
  70     {
  71         .set  = MC13783_EVENT_SET0,
  72         .mask = MC13783_SE1M,
  73         .callback = charger_main_detect_event,
  74     },
  75     [MC13783_USB_EVENT] = /* USB insertion/USB charger detection */
  76     {
  77         .set  = MC13783_EVENT_SET0,
  78         .mask = MC13783_USBM,
  79         .callback = usb_connect_event,
  80     },
  81 #ifdef HAVE_HEADPHONE_DETECTION
  82     [MC13783_ONOFD2_EVENT] = /* Headphone jack */
  83     {
  84         .set  = MC13783_EVENT_SET1,
  85         .mask = MC13783_ONOFD2M,
  86         .callback = headphone_detect_event,
  87     },
  88 #endif
  89 };