a299212af3
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31100 a1c6a512-1295-4272-9138-f99709370657
113 lines
3.8 KiB
C
113 lines
3.8 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2011 by Amaury Pouly
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "config.h"
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#include "system.h"
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#include "power.h"
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#include "string.h"
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#include "system-target.h"
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#include "usb-target.h"
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void INT_VDD5V(void)
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{
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if(HW_POWER_CTRL & HW_POWER_CTRL__VBUSVALID_IRQ)
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{
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if(HW_POWER_STS & HW_POWER_STS__VBUSVALID)
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usb_insert_int();
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else
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usb_remove_int();
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/* reverse polarity */
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__REG_TOG(HW_POWER_CTRL) = HW_POWER_CTRL__POLARITY_VBUSVALID;
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/* enable int */
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__REG_CLR(HW_POWER_CTRL) = HW_POWER_CTRL__VBUSVALID_IRQ;
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}
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}
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void power_init(void)
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{
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/* clear vbusvalid irq and set correct polarity */
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__REG_CLR(HW_POWER_CTRL) = HW_POWER_CTRL__VBUSVALID_IRQ;
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if(HW_POWER_STS & HW_POWER_STS__VBUSVALID)
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__REG_CLR(HW_POWER_CTRL) = HW_POWER_CTRL__POLARITY_VBUSVALID;
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else
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__REG_SET(HW_POWER_CTRL) = HW_POWER_CTRL__POLARITY_VBUSVALID;
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__REG_SET(HW_POWER_CTRL) = HW_POWER_CTRL__ENIRQ_VBUS_VALID;
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imx233_enable_interrupt(INT_SRC_VDD5V, true);
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}
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void power_off(void)
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{
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/* wait a bit, useful for the user to stop touching anything */
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sleep(HZ / 2);
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/* power down */
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HW_POWER_RESET = HW_POWER_RESET__UNLOCK | HW_POWER_RESET__PWD;
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while(1);
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}
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unsigned int power_input_status(void)
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{
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return POWER_INPUT_NONE;
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}
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bool charging_state(void)
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{
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return false;
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}
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struct imx233_power_info_t imx233_power_get_info(unsigned flags)
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{
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static int dcdc_freqsel[8] = {
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[HW_POWER_MISC__FREQSEL__RES] = 0,
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[HW_POWER_MISC__FREQSEL__20MHz] = 20000,
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[HW_POWER_MISC__FREQSEL__24MHz] = 24000,
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[HW_POWER_MISC__FREQSEL__19p2MHz] = 19200,
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[HW_POWER_MISC__FREQSEL__14p4MHz] = 14200,
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[HW_POWER_MISC__FREQSEL__18MHz] = 18000,
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[HW_POWER_MISC__FREQSEL__21p6MHz] = 21600,
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[HW_POWER_MISC__FREQSEL__17p28MHz] = 17280,
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};
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struct imx233_power_info_t s;
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memset(&s, 0, sizeof(s));
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if(flags & POWER_INFO_VDDD)
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{
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s.vddd = HW_POWER_VDDDCTRL__TRG_MIN + HW_POWER_VDDDCTRL__TRG_STEP * __XTRACT(HW_POWER_VDDDCTRL, TRG);
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s.vddd_linreg = HW_POWER_VDDDCTRL & HW_POWER_VDDDCTRL__ENABLE_LINREG;
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}
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if(flags & POWER_INFO_VDDA)
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{
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s.vdda = HW_POWER_VDDACTRL__TRG_MIN + HW_POWER_VDDACTRL__TRG_STEP * __XTRACT(HW_POWER_VDDACTRL, TRG);
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s.vdda_linreg = HW_POWER_VDDACTRL & HW_POWER_VDDACTRL__ENABLE_LINREG;
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}
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if(flags & POWER_INFO_VDDIO)
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s.vddio = HW_POWER_VDDIOCTRL__TRG_MIN + HW_POWER_VDDIOCTRL__TRG_STEP * __XTRACT(HW_POWER_VDDIOCTRL, TRG);
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if(flags & POWER_INFO_VDDMEM)
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{
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s.vddmem = HW_POWER_VDDMEMCTRL__TRG_MIN + HW_POWER_VDDMEMCTRL__TRG_STEP * __XTRACT(HW_POWER_VDDMEMCTRL, TRG);
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s.vddmem_linreg = HW_POWER_VDDMEMCTRL & HW_POWER_VDDMEMCTRL__ENABLE_LINREG;
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}
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if(flags & POWER_INFO_DCDC)
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{
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s.dcdc_sel_pllclk = HW_POWER_MISC & HW_POWER_MISC__SEL_PLLCLK;
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s.dcdc_freqsel = dcdc_freqsel[__XTRACT(HW_POWER_MISC, FREQSEL)];
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}
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return s;
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}
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