eac1ca22bd
NOTE: this commit does not introduce any change, ideally even the binary should
be almost the same. I checked the disassembly by hand and there are only a few
differences here and there, mostly the compiler decides to compile very close
expressions slightly differently. I tried to run the new code on several targets
to make sure and saw no difference.
The major syntax changes of the new headers are as follows:
- BF_{WR,SET,CLR} are now superpowerful and allows to set several fileds at once:
BF_WR(reg, field1(value1), field2(value2), ...)
- BF_CS (use like BF_WR) does a write to reg_CLR and then reg_SET instead of RMW
- there is no more need for macros like BF_{WR_,SET,CLR}_V, since one can simply
BF_WR with field_V(name)
- the old BF_SETV macro has no trivial equivalent and is replaced with its
its equivalent for BF_WR(reg_SET, ...)
I also rename the register headers: "regs/regs-x.h" -> "regs/x.h" to avoid the
redundant "regs".
Final note: the registers were generated using the following command:
./headergen_v2 -g imx -o ../../firmware/target/arm/imx233/regs/ desc/regs-stmp3{600,700,780}.xml
Change-Id: I7485e8b4315a0929a8edb63e7fa1edcaa54b1edc
111 lines
4.5 KiB
C
111 lines
4.5 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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#ifndef __lradc_imx233__
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#define __lradc_imx233__
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#include "config.h"
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#include "cpu.h"
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#include "cpu.h"
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#include "system.h"
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#include "system-target.h"
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#define LRADC_NUM_CHANNELS 8
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#define LRADC_NUM_DELAYS 4
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#define LRADC_NUM_SOURCES 16
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#define LRADC_SRC(x) (x)
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#define LRADC_SRC_XPLUS LRADC_SRC(2)
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#define LRADC_SRC_YPLUS LRADC_SRC(3)
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#define LRADC_SRC_XMINUS LRADC_SRC(4)
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#define LRADC_SRC_YMINUS LRADC_SRC(5)
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#define LRADC_SRC_VDDIO LRADC_SRC(6)
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#define LRADC_SRC_BATTERY LRADC_SRC(7)
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#define LRADC_SRC_PMOS_THIN LRADC_SRC(8)
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#define LRADC_SRC_NMOS_THIN LRADC_SRC(9)
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#define LRADC_SRC_NMOS_THICK LRADC_SRC(10)
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#define LRADC_SRC_PMOS_THICK LRADC_SRC(11)
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#define LRADC_SRC_PMOS_THICK LRADC_SRC(11)
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#if IMX233_SUBTARGET >= 3700
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#define LRADC_SRC_USB_DP LRADC_SRC(12)
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#define LRADC_SRC_USB_DN LRADC_SRC(13)
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#define LRADC_SRC_VBG LRADC_SRC(14)
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#define LRADC_SRC_5V LRADC_SRC(15)
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#endif
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/* frequency of the delay counter */
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#define LRADC_DELAY_FREQ 2000
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/* maximum value of a sample (without accumulation), defines the precision */
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#define LRADC_MAX_VALUE 4096
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typedef void (*lradc_irq_fn_t)(int chan);
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void imx233_lradc_init(void);
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void imx233_lradc_setup_source(int channel, bool div2, int src);
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/* variant of the above only for accumulation changes */
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void imx233_lradc_setup_sampling(int channel, bool acc, int nr_samples);
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void imx233_lradc_setup_delay(int dchan, int trigger_lradc, int trigger_delays,
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int loop_count, int delay);
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void imx233_lradc_clear_channel_irq(int channel);
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bool imx233_lradc_read_channel_irq(int channel);
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void imx233_lradc_enable_channel_irq(int channel, bool enable);
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/* a non-null cb will enable the icoll interrupt, a null one will disable it
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* NOTE the channel irq is automatically cleared */
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void imx233_lradc_set_channel_irq_callback(int channel, lradc_irq_fn_t cb);
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void imx233_lradc_kick_channel(int channel);
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void imx233_lradc_kick_delay(int dchan);
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void imx233_lradc_wait_channel(int channel);
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int imx233_lradc_read_channel(int channel);
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void imx233_lradc_clear_channel(int channel);
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/* acquire a channel, returns -1 on timeout, channel otherwise
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* the returned channel is garanteed to be able measure source src */
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int imx233_lradc_acquire_channel(int src, int timeout);
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void imx233_lradc_release_channel(int chan);
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// doesn't check that channel is in use!
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void imx233_lradc_reserve_channel(int channel);
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int imx233_lradc_acquire_delay(int timeout);
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// doesn't check that delay channel is in use!
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void imx233_lradc_reserve_delay(int dchannel);
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void imx233_lradc_release_delay(int dchan);
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/* Setup touch x/yminus pull donws and x/yplus pull ups */
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void imx233_lradc_setup_touch(bool xminus_enable, bool yminus_enable,
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bool xplus_enable, bool yplus_enable, bool touch_detect);
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void imx233_lradc_enable_touch_detect_irq(bool enable);
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void imx233_lradc_clear_touch_detect_irq(void);
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bool imx233_lradc_read_touch_detect(void);
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#if IMX233_SUBTARGET >= 3700
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/* enable sensing and return temperature in kelvin,
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* channels needs not to be configured */
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int imx233_lradc_sense_die_temperature(int nmos_chan, int pmos_chan);
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#endif
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/* return *raw* external temperature, might need some transformation
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* channel needs not to be configured */
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int imx233_lradc_sense_ext_temperature(int chan, int sensor);
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void imx233_lradc_setup_battery_conversion(bool automatic, unsigned long scale_factor);
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// read scaled voltage, only available after proper setup
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int imx233_lradc_read_battery_voltage(void);
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#endif /* __lradc_imx233__ */
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