mirror of
https://github.com/apache/nuttx.git
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wangbowen6
73f7cc5855
tlsr82: first commit of telink tlsr82xx chip port. - tc32 archtecture context switch; - tc32 backtrace; - timer, uart, pwm, gpio, adc driver; - flash, watchdog driver; - uart txdma/rxdma; - spi console driver; - add board bringup and reset; Signed-off-by: wangbowen6 <wangbowen6@xiaomi.com>
182 lines
5.2 KiB
C
182 lines
5.2 KiB
C
/****************************************************************************
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* arch/arm/src/tlsr82/tlsr82_analog.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdint.h>
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#include <nuttx/irq.h>
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#include <assert.h>
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#include <debug.h>
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#include "hardware/tlsr82_register.h"
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#include "hardware/tlsr82_analog.h"
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#include "tlsr82_analog.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define ANALOG_BUSY BIT(0)
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#define ANALOG_RSV BIT(4)
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#define ANALOG_RW BIT(5)
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#define ANALOG_START BIT(6)
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#define ANALOG_CYC BIT(7)
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/****************************************************************************
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* Private Types
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****************************************************************************/
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/****************************************************************************
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* Private Data
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****************************************************************************/
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/****************************************************************************
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* Public Data
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****************************************************************************/
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: tlsr82_analog_wait
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*
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* Description:
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* Wait until the analog quit from busy state
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*
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* Input Parameters:
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* void
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*
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* Returned Value:
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* void
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*
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****************************************************************************/
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static inline void tlsr82_analog_wait(void)
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{
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while (ANALOG_CTRL_REG & ANALOG_BUSY);
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}
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/****************************************************************************
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* Name: tlsr82_analog_read
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*
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* Description:
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* Read the analog register value at address <addr>
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*
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* Input Parameters:
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* addr - the address of analog register that read
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*
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* Returned Value:
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* read value
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*
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****************************************************************************/
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uint8_t locate_code(".ram_code") tlsr82_analog_read(uint8_t addr)
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{
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irqstate_t flags;
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uint8_t data;
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flags = enter_critical_section();
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/* Read analog address addr */
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ANALOG_ADDR_REG = addr;
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ANALOG_CTRL_REG = ANALOG_START;
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/* Wait until the read finish */
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tlsr82_analog_wait();
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/* Get the data and clear the analog contrl register */
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data = ANALOG_DATA_REG;
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ANALOG_CTRL_REG = 0;
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leave_critical_section(flags);
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return data;
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}
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/****************************************************************************
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* Name: tlsr82_analog_read
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*
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* Description:
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* Write the analog register value at address <addr>
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*
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* Input Parameters:
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* addr - the address of analog register that write
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* val - the write value
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*
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* Returned Value:
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* void
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*
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****************************************************************************/
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void locate_code(".ram_code") tlsr82_analog_write(uint8_t addr, uint8_t val)
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{
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irqstate_t flags;
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flags = enter_critical_section();
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/* Set the write address and value */
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ANALOG_ADDR_REG = addr;
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ANALOG_DATA_REG = val;
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ANALOG_CTRL_REG = (ANALOG_START | ANALOG_RW);
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/* Wait until the write finish */
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tlsr82_analog_wait();
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/* Clear the analog contrl register */
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ANALOG_CTRL_REG = 0;
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leave_critical_section(flags);
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}
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/****************************************************************************
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* Name: tlsr82_analog_modify
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*
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* Description:
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* Modity the value at <addr>
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*
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* Input Parameters:
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* addr - the address of analog register that write
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* val - the write value
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* mask - mask of the modified value
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* shift - modified value shift
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*
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* Returned Value:
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* void
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*
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****************************************************************************/
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void locate_code(".ram_code") tlsr82_analog_modify(uint8_t addr,
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uint8_t mask,
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uint8_t val)
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{
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tlsr82_analog_write(addr, (tlsr82_analog_read(addr) & (~mask)) | val);
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}
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