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UART driver model, no implementations yet. 

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@2087 35acf78f-673a-0410-8e92-d51de3d6d3f4
This commit is contained in:
gdisirio 2010-07-24 09:03:11 +00:00
parent f11cfe16ba
commit ac1f65e8f8
9 changed files with 778 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

85
os/hal/hal.dox
View File

@ -406,3 +406,88 @@
*/
/**
* @defgroup UART UART Driver
* @brief Generic UART Driver.
* @details This module implements a generic UART driver. The driver implements
* a state machine internally:
* @dot
digraph example {
rankdir="LR";
node [shape=circle, fontname=Helvetica, fontsize=8, fixedsize="true", width="0.8", height="0.8"];
edge [fontname=Helvetica, fontsize=8];
subgraph cluster_RECEIVER {
rx_idle [label="RX_IDLE", style="bold"];
rx_active [label="RX_ACTIVE"];
rx_complete [label="RX_COMPLETE"];
rx_fatal [label="Fatal Error", style="bold"];
rx_idle -> rx_idle [label="\nuartStopReceive()\n>uc_rxchar<\n>uc_rxerr<"];
rx_idle -> rx_active [label="\nuartStartReceive()"];
rx_active -> rx_complete [label="\nbuffer filled\n>uc_rxend<"];
rx_active -> rx_idle [label="\nuartStopReceive()"];
rx_active -> rx_active [label="\nreceive error\n>uc_rxerr<"];
rx_active -> rx_fatal [label="\nuartStartReceive()"];
rx_complete -> rx_active [label="\nuartStartReceiveI()\nthen\ncallback return"];
rx_complete -> rx_idle [label="\ncallback return"];
color = blue;
label = "Receiver state machine (within driver state UART_READY)";
}
subgraph cluster_TRANSMITTER {
tx_idle [label="TX_IDLE", style="bold"];
tx_active [label="TX_ACTIVE"];
tx_complete [label="TX_COMPLETE"];
tx_fatal [label="Fatal Error", style="bold"];
tx_idle -> tx_active [label="\nuartStartSend()"];
tx_idle -> tx_idle [label="\nuartStopSend()\n>uc_txend2<"];
tx_active -> tx_complete [label="\nbuffer transmitted\n>uc_txend1<"];
tx_active -> tx_idle [label="\nuartStopSend()"];
tx_active -> tx_fatal [label="\nuartStartSend()"];
tx_complete -> tx_active [label="\nuartStartSendI()\nthen\ncallback return"];
tx_complete -> tx_idle [label="\ncallback return"];
color = blue;
label = "Transmitter state machine (within driver state UART_READY)";
}
subgraph cluster_DRIVER {
uninit [label="UART_UNINIT", style="bold"];
stop [label="UART_STOP\nLow Power"];
ready [label="UART_READY\nClock Enabled"];
uninit -> stop [label="\nuartInit()"];
stop -> ready [label="\nuartStart()"];
ready -> ready [label="\nuartStart()"];
ready -> stop [label="\nuartStop()"];
stop -> stop [label="\nuartStop()"];
color = blue;
label = "Driver state machine";
}
}
* @enddot
* The UART driver is meant for those application where unbuffered access to
* the physical device is required. The driver is totally asynchronous and
* invokes callbacks on relevant driver state transitions. If your application
* requires a buffered driver then the @ref SERIAL should be used instead.<br>
* This driver model is best used where communication events are meant to
* drive an higher level state machine, as example:
* - RS485 drivers.
* - Multipoint network drivers.
* - Protocol decoders.
* .
*
* @ingroup IO
*/
/**
* @defgroup UART_LLD UART Low Level Driver
* @brief @ref UART low level driver template.
*
* @ingroup UART
*/

126
os/hal/include/uart.h Normal file
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@ -0,0 +1,126 @@
/*
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
ChibiOS/RT is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
ChibiOS/RT is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file uart.h
* @brief UART Driver macros and structures.
*
* @addtogroup UART
* @{
*/
#ifndef _UART_H_
#define _UART_H_
#if CH_HAL_USE_UART || defined(__DOXYGEN__)
/*===========================================================================*/
/* Driver constants. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver pre-compile time settings. */
/*===========================================================================*/
/*===========================================================================*/
/* Derived constants and error checks. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver data structures and types. */
/*===========================================================================*/
/**
* @brief Generic UART notification callback type.
*/
typedef void (*uartcb_t)(void);
/**
* @brief Character received UART notification callback type.
*
* @param[in] c received character
*/
typedef void (*uartccb_t)(uint16_t c);
/**
* @brief Receive error UART notification callback type.
*
* @param[in] e receive error mask
*/
typedef void (*uartecb_t)(uint16_t e);
/**
* @brief Driver state machine possible states.
*/
typedef enum {
UART_UNINIT = 0, /**< @brief Not initialized. */
UART_STOP = 1, /**< @brief Stopped. */
UART_READY = 2 /**< @brief Ready. */
} uartstate_t;
/**
* @brief Transmitter state machine states.
*/
typedef enum {
UART_TX_IDLE = 0, /**< @brief Not transmitting. */
UART_TX_ACTIVE = 1, /**< @brief Transmitting. */
UART_TX_COMPLETE = 2 /**< @brief Buffer complete. */
} uarttxstate_t;
/**
* @brief Receiver state machine states.
*/
typedef enum {
UART_RX_IDLE = 0, /**< @brief Not receiving. */
UART_RX_ACTIVE = 1, /**< @brief Receiving. */
UART_TX_ERROR = 2, /**< @brief Receive error. */
UART_TX_COMPLETE = 3 /**< @brief Buffer complete. */
} uartrxstate_t;
#include "uart_lld.h"
/*===========================================================================*/
/* Driver macros. */
/*===========================================================================*/
/*===========================================================================*/
/* External declarations. */
/*===========================================================================*/
#ifdef __cplusplus
extern "C" {
#endif
void uartInit(void);
void uartObjectInit(UARTDriver *uartp);
void uartStart(UARTDriver *uartp, const UARTConfig *config);
void uartStop(UARTDriver *uartp);
void uartStartSend(UARTDriver *uartp, size_t n, const void *txbuf);
void uartStartSendI(UARTDriver *uartp, size_t n, const void *txbuf);
void uartStopSend(UARTDriver *uartp);
void uartStartReceive(UARTDriver *uartp, size_t n, void *rxbuf);
void uartStopReceive(UARTDriver *uartp);
#ifdef __cplusplus
}
#endif
#endif /* CH_HAL_USE_UART */
#endif /* _UART_H_ */
/** @} */

3
os/hal/src/hal.c
View File

@ -75,6 +75,9 @@ void halInit(void) {
#if CH_HAL_USE_MMC_SPI
mmcInit();
#endif
#if CH_HAL_USE_UART
uartInit();
#endif
}
/** @} */

299
os/hal/src/uart.c Normal file
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@ -0,0 +1,299 @@
/*
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
ChibiOS/RT is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
ChibiOS/RT is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file uart.c
* @brief UART Driver code.
*
* @addtogroup UART
* @{
*/
#include "ch.h"
#include "hal.h"
#if CH_HAL_USE_UART || defined(__DOXYGEN__)
/*===========================================================================*/
/* Driver exported variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local functions. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver exported functions. */
/*===========================================================================*/
/**
* @brief UART Driver initialization.
*/
void uartInit(void) {
uart_lld_init();
}
/**
* @brief Initializes the standard part of a @p UARTDriver structure.
*
* @param[in] uartp pointer to the @p UARTDriver object
*/
void uartObjectInit(UARTDriver *uartp) {
uartp->ud_state = UART_STOP;
uartp->ud_txstate = UART_TX_IDLE;
uartp->ud_rxstate = UART_RX_IDLE;
uartp->ud_config = NULL;
}
/**
* @brief Configures and activates the UART peripheral.
*
* @param[in] uartp pointer to the @p UARTDriver object
* @param[in] config pointer to the @p UARTConfig object
*/
void uartStart(UARTDriver *uartp, const UARTConfig *config) {
chDbgCheck((uartp != NULL) && (config != NULL), "uartStart");
chSysLock();
chDbgAssert((uartp->ud_state == UART_STOP) ||
(uartp->ud_state == UART_READY),
"uartStart(), #1",
"invalid state");
uartp->ud_config = config;
uart_lld_start(uartp);
uartp->ud_state = UART_READY;
chSysUnlock();
}
/**
* @brief Deactivates the UART peripheral.
*
* @param[in] uartp pointer to the @p UARTDriver object
*/
void uartStop(UARTDriver *uartp) {
chDbgCheck(uartp != NULL, "uartStop");
chSysLock();
chDbgAssert((uartp->ud_state == UART_STOP) ||
(uartp->ud_state == UART_READY),
"uartStop(), #1",
"invalid state");
uart_lld_stop(uartp);
uartp->ud_state = UART_STOP;
uartp->ud_txstate = UART_TX_IDLE;
uartp->ud_rxstate = UART_RX_IDLE;
chSysUnlock();
}
/**
* @brief Starts a transmission on the UART peripheral.
* @note The buffers are organized as uint8_t arrays for data sizes below
* or equal to 8 bits else it is organized as uint16_t arrays.
*
* @param[in] uartp pointer to the @p UARTDriver object
* @param[in] n number of data frames to send
* @param[in] txbuf the pointer to the transmit buffer
*/
void uartStartSend(UARTDriver *uartp, size_t n, const void *txbuf) {
chDbgCheck((uartp != NULL) && (n > 0) && (txbuf != NULL),
"uartStartSend");
chSysLock();
chDbgAssert((uartp->ud_state == UART_READY) &&
(uartp->ud_txstate == UART_TX_IDLE),
"uartStartSend(), #1",
"not active");
uart_lld_start_send(uartp, n, txbuf);
uartp->ud_txstate = UART_TX_ACTIVE;
chSysUnlock();
}
/**
* @brief Starts a transmission on the UART peripheral.
* @note The buffers are organized as uint8_t arrays for data sizes below
* or equal to 8 bits else it is organized as uint16_t arrays.
* @note This function has to be invoked from a lock zone.
*
* @param[in] uartp pointer to the @p UARTDriver object
* @param[in] n number of data frames to send
* @param[in] txbuf the pointer to the transmit buffer
*/
void uartStartSendI(UARTDriver *uartp, size_t n, const void *txbuf) {
chDbgCheck((uartp != NULL) && (n > 0) && (txbuf != NULL),
"uartStartSendI");
chDbgAssert((uartp->ud_state == UART_READY) &&
(uartp->ud_txstate != UART_TX_ACTIVE),
"uartStartSendI(), #1",
"not active");
uart_lld_start_send(uartp, n, txbuf);
uartp->ud_txstate = UART_TX_ACTIVE;
}
/**
* @brief Stops any ongoing transmission.
* @note Stopping a transmission also suppresses the transmission callbacks.
*
* @param[in] uartp pointer to the @p UARTDriver object
*/
void uartStopSend(UARTDriver *uartp) {
chDbgCheck(uartp != NULL, "uartStopSend");
chSysLock()
chDbgAssert(uartp->ud_state == UART_READY,
"uartStopSend(), #1",
"not active");
if (uartp->ud_txstate == UART_TX_ACTIVE) {
uart_lld_stop_send(uartp);
uartp->ud_txstate = UART_TX_IDLE;
}
chSysUnlock();
}
/**
* @brief Stops any ongoing transmission.
* @note Stopping a transmission also suppresses the transmission callbacks.
* @note This function has to be invoked from a lock zone.
*
* @param[in] uartp pointer to the @p UARTDriver object
*/
void uartStopSendI(UARTDriver *uartp) {
chDbgCheck(uartp != NULL, "uartStopSendI");
chDbgAssert(uartp->ud_state == UART_READY,
"uartStopSendI(), #1",
"not active");
if (uartp->ud_txstate == UART_TX_ACTIVE) {
uart_lld_stop_send(uartp);
uartp->ud_txstate = UART_TX_IDLE;
}
}
/**
* @brief Starts a receive operation on the UART peripheral.
* @note The buffers are organized as uint8_t arrays for data sizes below
* or equal to 8 bits else it is organized as uint16_t arrays.
*
* @param[in] uartp pointer to the @p UARTDriver object
* @param[in] n number of data frames to send
* @param[in] rxbuf the pointer to the receive buffer
*/
void uartStartReceive(UARTDriver *uartp, size_t n, void *rxbuf) {
chDbgCheck((uartp != NULL) && (n > 0) && (rxbuf != NULL),
"uartStartReceive");
chSysLock();
chDbgAssert((uartp->ud_state == UART_READY) &&
(uartp->ud_rxstate == UART_RX_IDLE),
"uartStartReceive(), #1",
"not active");
uart_lld_start_receive(uartp, n, txbuf);
uartp->ud_rxstate = UART_RX_ACTIVE;
chSysUnlock();
}
/**
* @brief Starts a receive operation on the UART peripheral.
* @note The buffers are organized as uint8_t arrays for data sizes below
* or equal to 8 bits else it is organized as uint16_t arrays.
* @note This function has to be invoked from a lock zone.
*
* @param[in] uartp pointer to the @p UARTDriver object
* @param[in] n number of data frames to send
* @param[in] rxbuf the pointer to the receive buffer
*/
void uartStartReceiveI(UARTDriver *uartp, size_t n, void *rxbuf) {
chDbgCheck((uartp != NULL) && (n > 0) && (rxbuf != NULL),
"uartStartReceiveI");
chDbgAssert((uartp->ud_state == UART_READY) &&
(uartp->ud_rxstate == UART_RX_IDLE),
"uartStartReceiveI(), #1",
"not active");
uart_lld_start_receive(uartp, n, txbuf);
uartp->ud_rxstate = UART_RX_ACTIVE;
}
/**
* @brief Stops any ongoing receive operation.
* @note Stopping a receive operation also suppresses the receive callbacks.
*
* @param[in] uartp pointer to the @p UARTDriver object
*/
void uartStopReceive(UARTDriver *uartp) {
chDbgCheck(uartp != NULL, "uartStopReceive");
chSysLock()
chDbgAssert(uartp->ud_state == UART_READY,
"uartStopReceive(), #1",
"not active");
if (uartp->ud_rxstate == UART_RX_ACTIVE) {
uart_lld_stop_receive(uartp);
uartp->ud_rxstate = UART_RX_IDLE;
}
chSysUnlock();
}
/**
* @brief Stops any ongoing receive operation.
* @note Stopping a receive operation also suppresses the receive callbacks.
* @note This function has to be invoked from a lock zone.
*
* @param[in] uartp pointer to the @p UARTDriver object
*/
void uartStopReceiveI(UARTDriver *uartp) {
chDbgCheck(uartp != NULL, "uartStopReceiveI");
chDbgAssert(uartp->ud_state == UART_READY,
"uartStopReceiveI(), #1",
"not active");
if (uartp->ud_rxstate == UART_RX_ACTIVE) {
uart_lld_stop_receive(uartp);
uartp->ud_rxstate = UART_RX_IDLE;
}
}
#endif /* CH_HAL_USE_UART */
/** @} */

11
os/hal/templates/halconf.h
View File

@ -154,6 +154,17 @@
/*#define MMC_POLLING_INTERVAL 10*/
/*#define MMC_POLLING_DELAY 10*/
/*===========================================================================*/
/* UART driver related settings. */
/*===========================================================================*/
/**
* @brief Enables the UART subsystem.
*/
#if !defined(CH_HAL_USE_UART) || defined(__DOXYGEN__)
#define CH_HAL_USE_UART TRUE
#endif
#endif /* _HALCONF_H_ */
/** @} */

130
os/hal/templates/uart_lld.c Normal file
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@ -0,0 +1,130 @@
/*
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
ChibiOS/RT is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
ChibiOS/RT is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file templates/uart_lld.c
* @brief UART Driver subsystem low level driver source template.
*
* @addtogroup UART_LLD
* @{
*/
#include "ch.h"
#include "hal.h"
#if CH_HAL_USE_UART || defined(__DOXYGEN__)
/*===========================================================================*/
/* Driver exported variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local variables. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local functions. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver interrupt handlers. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver exported functions. */
/*===========================================================================*/
/**
* @brief Low level UART driver initialization.
*/
void uart_lld_init(void) {
}
/**
* @brief Configures and activates the UART peripheral.
*
* @param[in] uartp pointer to the @p UARTDriver object
*/
void uart_lld_start(UARTDriver *uartp) {
if (uartp->uart_state == UART_STOP) {
/* Clock activation.*/
}
/* Configuration.*/
}
/**
* @brief Deactivates the UART peripheral.
*
* @param[in] uartp pointer to the @p UARTDriver object
*/
void uart_lld_stop(UARTDriver *uartp) {
}
/**
* @brief Starts a transmission on the UART peripheral.
* @note The buffers are organized as uint8_t arrays for data sizes below
* or equal to 8 bits else it is organized as uint16_t arrays.
*
* @param[in] uartp pointer to the @p UARTDriver object
* @param[in] n number of data frames to send
* @param[in] txbuf the pointer to the transmit buffer
*/
void uart_lld_start_send(UARTDriver *uartp, size_t n, const void *txbuf) {
}
/**
* @brief Stops any ongoing transmission.
* @note Stopping a transmission also suppresses the transmission callbacks.
*
* @param[in] uartp pointer to the @p UARTDriver object
*/
void uart_lld_stop_send(UARTDriver *uartp) {
}
/**
* @brief Starts a receive operation on the UART peripheral.
* @note The buffers are organized as uint8_t arrays for data sizes below
* or equal to 8 bits else it is organized as uint16_t arrays.
*
* @param[in] uartp pointer to the @p UARTDriver object
* @param[in] n number of data frames to send
* @param[in] rxbuf the pointer to the receive buffer
*/
void uart_lld_start_receive(UARTDriver *uartp, size_t n, void *rxbuf) {
}
/**
* @brief Stops any ongoing receive operation.
* @note Stopping a receive operation also suppresses the receive callbacks.
*
* @param[in] uartp pointer to the @p UARTDriver object
*/
void uart_lld_stop_receive(UARTDriver *uartp) {
}
#endif /* CH_HAL_USE_UART */
/** @} */

116
os/hal/templates/uart_lld.h Normal file
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@ -0,0 +1,116 @@
/*
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
ChibiOS/RT is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
ChibiOS/RT is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file templates/uart_lld.h
* @brief UART Driver subsystem low level driver header template.
*
* @addtogroup UART_LLD
* @{
*/
#ifndef _UART_LLD_H_
#define _UART_LLD_H_
#if CH_HAL_USE_UART || defined(__DOXYGEN__)
/*===========================================================================*/
/* Driver constants. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver pre-compile time settings. */
/*===========================================================================*/
/*===========================================================================*/
/* Derived constants and error checks. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver data structures and types. */
/*===========================================================================*/
/**
* @brief Driver configuration structure.
* @note It could be empty on some architectures.
*/
typedef struct {
/** @brief End of transmission buffer callback.*/
uartcb_t uc_txend1;
/** @brief Physical end of transmission callback.*/
uartcb_t uc_txend2;
/** @brief Receive buffer filled callback.*/
uartcb_t uc_rxend;
/** @brief Character received while out if the @p UART_RECEIVE state.*/
uartcb_t uc_rxchar;
/** @brief Receive error callback.*/
uartcb_t uc_rxerr;
/* End of the mandatory fields.*/
} UARTConfig;
/**
* @brief Structure representing an UART driver.
*/
typedef struct {
/**
* @brief Driver state.
*/
uartstate_t ud_state;
/**
* @brief Transmitter state.
*/
uarttxstate_t ud_txstate;
/**
* @brief Receiver state.
*/
uartrxstate_t ud_rxstate;
/**
* @brief Current configuration data.
*/
const UARTConfig *ud_config;
/* End of the mandatory fields.*/
} UARTDriver;
/*===========================================================================*/
/* Driver macros. */
/*===========================================================================*/
/*===========================================================================*/
/* External declarations. */
/*===========================================================================*/
#ifdef __cplusplus
extern "C" {
#endif
void uart_lld_init(void);
void uart_lld_start(UARTDriver *uartp);
void uart_lld_stop(UARTDriver *uartp);
void uart_lld_start_send(UARTDriver *uartp, size_t n, const void *txbuf);
void uart_lld_stop_send(UARTDriver *uartp);
void uart_lld_start_receive(UARTDriver *uartp, size_t n, void *rxbuf);
void uart_lld_stop_receive(UARTDriver *uartp);
#ifdef __cplusplus
}
#endif
#endif /* CH_HAL_USE_UART */
#endif /* _UART_LLD_H_ */
/** @} */

2
readme.txt
View File

@ -76,6 +76,8 @@
3025549)(backported to 2.0.2).
- FIX: Added option to enforce the stack alignment to 32 or 64 bits in the
Cortex-Mx port (bug 3025133)(backported to 2.0.2).
- NEW: New UART device driver model, this device driver allows unbuffered,
callback driven access to UART-type devices.
- NEW: Added friendly interrupt vectors names to the STM32 HAL (change request
3023944).
- NEW: Added support for SPI3 in the STM32 HAL.

12
todo.txt
View File

@ -6,6 +6,12 @@ X = In progress, some work done.
Within 2.1.x (hopefully)
* Binary Semaphores on top of Counting Semaphores.
X Direct unbuffered UART driver (evaluate rebuilding the current serial driver
as a generic driver on top of the low level UART driver).
Requirements: low level, callbacks, DMA capable, state machines buildable
on top, support data words greater than 8 bits, callback for
"last byte transmitted (RS485)", simple implementation,
verifiable.
X Resist doing more changes and optimizations in the kernel, fixes only.
- Merge the Coldfire branch in mainline.
- Merge the H8S branch in mainline.
@ -13,12 +19,6 @@ X Resist doing more changes and optimizations in the kernel, fixes only.
- Add a *very simple* ADC API for simgle one shot sampling (implement it as
an injected conversion on the STM32).
- MAC driver for STM32F105/STM32F107 (hardware missing).
- Direct unbuffered UART driver (evaluate rebuilding the current serial driver
as a generic driver on top of the low level UART driver).
Requirements: low level, callbacks, DMA capable, state machines buildable
on top, support data words greater than 8 bits, callback for
"last byte transmitted (RS485)", simple implementation,
verifiable.
- Device drivers for STM8 (SPI, ADC, PWM, bring it on par with STM32).
- Support for more compilers (ARMCMx only initially).
- Support for not just Makefiles (Ride7, Crossworks, Eclipse CDT etc).