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Diffstat (limited to 'c/src/lib/libcpu/m68k/mcf5206/include/mcfmbus.h')
| -rw-r--r-- | c/src/lib/libcpu/m68k/mcf5206/include/mcfmbus.h | 129 |
1 files changed, 0 insertions, 129 deletions
diff --git a/c/src/lib/libcpu/m68k/mcf5206/include/mcfmbus.h b/c/src/lib/libcpu/m68k/mcf5206/include/mcfmbus.h deleted file mode 100644 index f70a70e483..0000000000 --- a/c/src/lib/libcpu/m68k/mcf5206/include/mcfmbus.h +++ /dev/null @@ -1,129 +0,0 @@ -/* - * MCF5206e MBUS module (I2C bus) driver header file - * - * Copyright (C) 2000 OKTET Ltd., St.-Petersburg, Russia - * Author: Victor V. Vengerov <vvv@oktet.ru> - * - * The license and distribution terms for this file may be - * found in the file LICENSE in this distribution or at - * http://www.rtems.org/license/LICENSE. - */ - -#ifndef __MCFBSP_MCFMBUS_H__ -#define __MCFBSP_MCFMBUS_H__ - -#include "mcf5206e.h" -#include "i2c.h" - -/* States of I2C machine */ -typedef enum mcfmbus_i2c_state { - STATE_IDLE, - STATE_ADDR_7, - STATE_ADDR_1_W, - STATE_ADDR_1_R, - STATE_SENDING, - STATE_RECEIVING -} mcfmbus_i2c_state; - -typedef struct mcfmbus { - uint32_t base; /* ColdFire internal peripherial base - address */ - enum mcfmbus_i2c_state state;/* State of I2C machine */ - i2c_message *msg; /* Pointer to the first message in transfer */ - int nmsg; /* Number of messages in transfer */ - i2c_message *cmsg; /* Current message */ - int byte; /* Byte number in current message */ - rtems_isr_entry oldisr; /* Old interrupt handler */ - rtems_id sema; /* MBUS semaphore */ - i2c_transfer_done done; /* Transfer done function */ - uintptr_t done_arg_ptr; /* Done function argument ptr */ -} mcfmbus; - -/* mcfmbus_initialize -- - * Initialize ColdFire MBUS I2C bus controller. - * - * PARAMETERS: - * i2c_bus - pointer to the bus descriptor structure - * base - ColdFire internal peripherial base address - * - * RETURNS: - * RTEMS_SUCCESSFUL, or RTEMS error code when initialization failed. - */ -rtems_status_code -mcfmbus_initialize(mcfmbus *i2c_bus, uint32_t base); - -/* mcfmbus_select_clock_divider -- - * Select divider for system clock which is used for I2C bus clock - * generation. Not each divider can be selected for I2C bus; this - * function select nearest larger or equal divider, or maximum - * possible divider, if passed value greater. - * - * PARAMETERS: - * i2c_bus - pointer to the bus descriptor structure - * divider - system frequency divider for I2C serial clock. - * - * RETURNS: - * RTEMS_SUCCESSFUL, if operation performed successfully, or - * RTEMS error code when failed. - */ -rtems_status_code -mcfmbus_select_clock_divider(mcfmbus *i2c_bus, int divider); - -/* mcfmbus_i2c_transfer -- - * Initiate multiple-messages transfer over I2C bus via ColdFire MBUS - * controller. - * - * PARAMETERS: - * bus - pointer to MBUS controller descriptor - * nmsg - number of messages - * msg - pointer to messages array - * done - function which is called when transfer is finished - * done_arg_ptr - arbitrary argument ptr passed to done funciton - * - * RETURNS: - * RTEMS_SUCCESSFUL if transfer initiated successfully, or error - * code when failed. - */ -rtems_status_code -mcfmbus_i2c_transfer(mcfmbus *bus, int nmsg, i2c_message *msg, - i2c_transfer_done done, void *done_arg_ptr); - -/* mcfmbus_i2c_done -- - * Close ColdFire MBUS I2C bus controller and release all resources. - * - * PARAMETERS: - * bus - pointer to MBUS controller descriptor - * - * RETURNS: - * RTEMS_SUCCESSFUL, if transfer initiated successfully, or error - * code when failed. - */ -rtems_status_code -mcfmbus_i2c_done(mcfmbus *i2c_bus); - -/* mcfmbus_i2c_interrupt_handler -- - * ColdFire MBUS I2C bus controller interrupt handler. This function - * called from real interrupt handler, and pointer to MBUS descriptor - * structure passed to this function. - * - * PARAMETERS: - * bus - pointert to the bus descriptor structure - * - * RETURNS: - * none - */ -void mcfmbus_i2c_interrupt_handler(mcfmbus *bus); - -/* mcfmbus_poll -- - * MBUS module poll routine; used to poll events when I2C driver - * operates in poll-driven mode. - * - * PARAMETERS: - * none - * - * RETURNS: - * none - */ -void mcfmbus_poll(mcfmbus *bus); - -#endif /* __MCFBSP_MCFMBUS_H__ */ |