171 lines
7.7 KiB
C
171 lines
7.7 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 HW_LRADC_BASE 0x80050000
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#define HW_LRADC_CTRL0 (*(volatile uint32_t *)(HW_LRADC_BASE + 0x0))
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#define HW_LRADC_CTRL0__XPLUS_ENABLE (1 << 16)
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#define HW_LRADC_CTRL0__YPLUS_ENABLE (1 << 17)
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#define HW_LRADC_CTRL0__XMINUS_ENABLE (1 << 18)
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#define HW_LRADC_CTRL0__YMINUS_ENABLE (1 << 19)
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#define HW_LRADC_CTRL0__TOUCH_DETECT_ENABLE (1 << 20)
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#define HW_LRADC_CTRL0__ONCHIP_GROUNDREF (1 << 21)
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#define HW_LRADC_CTRL0__SCHEDULE(x) (1 << (x))
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#define HW_LRADC_CTRL1 (*(volatile uint32_t *)(HW_LRADC_BASE + 0x10))
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#define HW_LRADC_CTRL1__LRADCx_IRQ(x) (1 << (x))
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#define HW_LRADC_CTRL1__TOUCH_DETECT_IRQ (1 << 8)
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#define HW_LRADC_CTRL1__LRADCx_IRQ_EN(x) (1 << ((x) + 16))
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#define HW_LRADC_CTRL1__TOUCH_DETECT_IRQ_EN (1 << 24)
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#define HW_LRADC_CTRL2 (*(volatile uint32_t *)(HW_LRADC_BASE + 0x20))
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#define HW_LRADC_CTRL2__TEMP_ISRC1_BP 4
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#define HW_LRADC_CTRL2__TEMP_ISRC1_BM 0xf0
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#define HW_LRADC_CTRL2__TEMP_ISRC0_BP 0
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#define HW_LRADC_CTRL2__TEMP_ISRC0_BM 0xf
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#define HW_LRADC_CTRL2__TEMP_ISRCx_BP(x) (4 * (x))
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#define HW_LRADC_CTRL2__TEMP_ISRCx_BM(x) (0xf << (4 * (x)))
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#define HW_LRADC_CTRL2__TEMP_ISRC__0uA 0
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#define HW_LRADC_CTRL2__TEMP_ISRC__20uA 1
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#define HW_LRADC_CTRL2__TEMP_ISRC__300uA 15
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#define HW_LRADC_CTRL2__TEMP_SENSOR_IENABLE0 (1 << 8)
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#define HW_LRADC_CTRL2__TEMP_SENSOR_IENABLE1 (1 << 9)
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#define HW_LRADC_CTRL2__TEMP_SENSOR_IENABLEx(x) (1 << (8 + (x)))
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#define HW_LRADC_CTRL2__TEMPSENSE_PWD (1 << 15)
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#define HW_LRADC_CTRL2__DIVIDE_BY_TWO(x) (1 << ((x) + 24))
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#define HW_LRADC_CTRL3 (*(volatile uint32_t *)(HW_LRADC_BASE + 0x30))
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#define HW_LRADC_CTRL3__CYCLE_TIME_BM 0x300
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#define HW_LRADC_CTRL3__CYCLE_TIME_BP 8
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#define HW_LRADC_CTRL3__CYCLE_TIME__6MHz (0 << 8)
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#define HW_LRADC_CTRL3__CYCLE_TIME__4MHz (1 << 8)
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#define HW_LRADC_CTRL3__CYCLE_TIME__3MHz (2 << 8)
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#define HW_LRADC_CTRL3__CYCLE_TIME__2MHz (3 << 8)
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#define HW_LRADC_STATUS (*(volatile uint32_t *)(HW_LRADC_BASE + 0x40))
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#define HW_LRADC_STATUS__TOUCH_DETECT_RAW (1 << 0)
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#define HW_LRADC_CHx(x) (*(volatile uint32_t *)(HW_LRADC_BASE + 0x50 + (x) * 0x10))
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#define HW_LRADC_CHx__NUM_SAMPLES_BM (0x1f << 24)
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#define HW_LRADC_CHx__NUM_SAMPLES_BP 24
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#define HW_LRADC_CHx__ACCUMULATE 29
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#define HW_LRADC_CHx__VALUE_BM 0x3ffff
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#define HW_LRADC_CHx__VALUE_BP 0
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#define HW_LRADC_DELAYx(x) (*(volatile uint32_t *)(HW_LRADC_BASE + 0xD0 + (x) * 0x10))
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#define HW_LRADC_DELAYx__DELAY_BP 0
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#define HW_LRADC_DELAYx__DELAY_BM 0x7ff
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#define HW_LRADC_DELAYx__LOOP_COUNT_BP 11
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#define HW_LRADC_DELAYx__LOOP_COUNT_BM (0x1f << 11)
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#define HW_LRADC_DELAYx__TRIGGER_DELAYS_BP 16
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#define HW_LRADC_DELAYx__TRIGGER_DELAYS_BM (0xf << 16)
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#define HW_LRADC_DELAYx__KICK (1 << 20)
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#define HW_LRADC_DELAYx__TRIGGER_LRADCS_BP 24
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#define HW_LRADC_DELAYx__TRIGGER_LRADCS_BM (0xff << 24)
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#define HW_LRADC_CONVERSION (*(volatile uint32_t *)(HW_LRADC_BASE + 0x130))
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#define HW_LRADC_CONVERSION__SCALED_BATT_VOLTAGE_BP 0
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#define HW_LRADC_CONVERSION__SCALED_BATT_VOLTAGE_BM 0x3ff
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#define HW_LRADC_CONVERSION__SCALE_FACTOR_BM (3 << 16)
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#define HW_LRADC_CONVERSION__SCALE_FACTOR_BP 16
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#define HW_LRADC_CONVERSION__SCALE_FACTOR__LI_ION (2 << 16)
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#define HW_LRADC_CONVERSION__AUTOMATIC (1 << 20)
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#define HW_LRADC_CTRL4 (*(volatile uint32_t *)(HW_LRADC_BASE + 0x140))
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#define HW_LRADC_CTRL4__LRADCxSELECT_BM(x) (0xf << ((x) * 4))
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#define HW_LRADC_CTRL4__LRADCxSELECT_BP(x) ((x) * 4)
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#define HW_LRADC_VERSION (*(volatile uint32_t *)(HW_LRADC_BASE + 0x150))
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#define HW_LRADC_NUM_CHANNELS 8
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#define HW_LRADC_NUM_DELAYS 4
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#define HW_LRADC_CHANNEL(x) (x)
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#define HW_LRADC_CHANNEL_XPLUS HW_LRADC_CHANNEL(2)
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#define HW_LRADC_CHANNEL_YPLUS HW_LRADC_CHANNEL(3)
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#define HW_LRADC_CHANNEL_XMINUS HW_LRADC_CHANNEL(4)
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#define HW_LRADC_CHANNEL_YMINUS HW_LRADC_CHANNEL(5)
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#define HW_LRADC_CHANNEL_VDDIO HW_LRADC_CHANNEL(6)
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#define HW_LRADC_CHANNEL_BATTERY HW_LRADC_CHANNEL(7)
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#define HW_LRADC_CHANNEL_PMOS_THIN HW_LRADC_CHANNEL(8)
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#define HW_LRADC_CHANNEL_NMOS_THIN HW_LRADC_CHANNEL(9)
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#define HW_LRADC_CHANNEL_NMOS_THICK HW_LRADC_CHANNEL(10)
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#define HW_LRADC_CHANNEL_PMOS_THICK HW_LRADC_CHANNEL(11)
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#define HW_LRADC_CHANNEL_PMOS_THICK HW_LRADC_CHANNEL(11)
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#define HW_LRADC_CHANNEL_USB_DP HW_LRADC_CHANNEL(12)
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#define HW_LRADC_CHANNEL_USB_DN HW_LRADC_CHANNEL(13)
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#define HW_LRADC_CHANNEL_VBG HW_LRADC_CHANNEL(14)
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#define HW_LRADC_CHANNEL_5V HW_LRADC_CHANNEL(15)
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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_channel(int channel, bool div2, bool acc, int nr_samples, int src);
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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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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 virtual channel, returns -1 on timeout, channel otherwise */
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int imx233_lradc_acquire_channel(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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/* 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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/* 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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