diff options
Diffstat (limited to 'nuttx/drivers/input/stmpe811_temp.c')
| -rw-r--r-- | nuttx/drivers/input/stmpe811_temp.c | 174 |
1 files changed, 0 insertions, 174 deletions
diff --git a/nuttx/drivers/input/stmpe811_temp.c b/nuttx/drivers/input/stmpe811_temp.c deleted file mode 100644 index 0fefd2069..000000000 --- a/nuttx/drivers/input/stmpe811_temp.c +++ /dev/null @@ -1,174 +0,0 @@ -/**************************************************************************** - * drivers/input/stmpe811_temp.c - * - * Copyright (C) 2012 Gregory Nutt. All rights reserved. - * Author: Gregory Nutt <gnutt@nuttx.org> - * - * References: - * "STMPE811 S-Touch® advanced resistive touchscreen controller with 8-bit - * GPIO expander," Doc ID 14489 Rev 6, CD00186725, STMicroelectronics" - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * 3. Neither the name NuttX nor the names of its contributors may be - * used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE - * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, - * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS - * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED - * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN - * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - * - ****************************************************************************/ - -/**************************************************************************** - * Included Files - ****************************************************************************/ - -#include <nuttx/config.h> - -#include <assert.h> -#include <errno.h> -#include <debug.h> - -#include <nuttx/input/stmpe811.h> - -#include "stmpe811.h" - -#if defined(CONFIG_INPUT) && defined(CONFIG_INPUT_STMPE811) && !defined(CONFIG_STMPE811_TEMP_DISABLE) - -/**************************************************************************** - * Private Types - ****************************************************************************/ - -/**************************************************************************** - * Private Data - ****************************************************************************/ - -/**************************************************************************** - * Private Functions - ****************************************************************************/ - -/**************************************************************************** - * Public Functions - ****************************************************************************/ - -/**************************************************************************** - * Name: stmpe811_tempinitialize - * - * Description: - * Configure the temperature sensor. - * - * Input Parameters: - * handle - The handle previously returned by stmpe811_instantiate - * - * Returned Value: - * Zero is returned on success. Otherwise, a negated errno value is - * returned to indicate the nature of the failure. - * - ****************************************************************************/ - -int stmpe811_tempinitialize(STMPE811_HANDLE handle) -{ - FAR struct stmpe811_dev_s *priv = (FAR struct stmpe811_dev_s *)handle; - uint8_t regval; - - /* Enable clocking for ADC and the temperature sensor */ - - regval = stmpe811_getreg8(priv, STMPE811_SYS_CTRL2); - regval &= ~(SYS_CTRL2_TS_OFF | SYS_CTRL2_ADC_OFF); - stmpe811_putreg8(priv, STMPE811_SYS_CTRL2, regval); - - /* Enable the temperature sensor */ - - stmpe811_putreg8(priv, STMPE811_TEMP_CTRL, TEMP_CTRL_ENABLE); - - /* Aquire data enable */ - - stmpe811_putreg8(priv, STMPE811_TEMP_CTRL, (TEMP_CTRL_ACQ|TEMP_CTRL_ENABLE)); - - return OK; -} - -/**************************************************************************** - * Name: stmpe811_tempread - * - * Description: - * Configure the temperature sensor. - * - * Input Parameters: - * handle - The handle previously returned by stmpe811_instantiate - * - * Returned Value: - * Zero is returned on success. Otherwise, a negated errno value is - * returned to indicate the nature of the failure. - * - ****************************************************************************/ - -uint16_t stmpe811_tempread(STMPE811_HANDLE handle) -{ - FAR struct stmpe811_dev_s *priv = (FAR struct stmpe811_dev_s *)handle; - uint32_t temp = 0; - uint8_t temp1; - uint8_t temp2; - - /* Acquire data enable */ - - stmpe811_putreg8(priv, STMPE811_TEMP_CTRL, (TEMP_CTRL_ACQ|TEMP_CTRL_ENABLE)); - - /* Read the temperature */ - - temp1 = stmpe811_getreg8(priv, STMPE811_SYS_CTRL2); - temp2 = stmpe811_getreg8(priv, STMPE811_SYS_CTRL2+1); - - /* Scale the temperature (where Vio is assumed to be .33) */ - - temp = ((uint32_t)(temp1 & 3) << 8) | temp2; - temp = (uint32_t)((33 * temp * 100) / 751); - temp = (uint32_t)((temp + 5) / 10); - - return (uint16_t)temp; -} - -/**************************************************************************** - * Name: stmpe811_tempinterrupt - * - * Description: - * Configure the temperature sensor to sample the temperature periodically. - * Set the temperature threshold to generate an interrupt and notify - * to the client using the provide callback function pointer. - * - * Input Parameters: - * handle - The handle previously returned by stmpe811_instantiate - * threshold - The threshold temperature value - * direction - True: Generate an interrupt if the temperate exceeds the - * threshold value; False: Generate an interrupt if the - * temperature falls below the threshold value. - * callback - The client callback function that will be called when - * the termperature crosses the threshold. - * - * Returned Value: - * Zero is returned on success. Otherwise, a negated errno value is - * returned to indicate the nature of the failure. - * - ****************************************************************************/ -/* Not implemented */ - -#endif /* CONFIG_INPUT && CONFIG_INPUT_STMPE811 && !CONFIG_STMPE811_TEMP_DISABLE */ - |