1 //==========================================================================
3 // devs/wallclock/arm/aim711/include/devs_wallclock_arm_aim711.inl
5 // ARM Industrial Module AIM 711 RTC IO definitions
7 //==========================================================================
8 //####ECOSGPLCOPYRIGHTBEGIN####
9 // -------------------------------------------
10 // This file is part of eCos, the Embedded Configurable Operating System.
11 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
12 // Copyright (C) 2003 Gary Thomas
14 // eCos is free software; you can redistribute it and/or modify it under
15 // the terms of the GNU General Public License as published by the Free
16 // Software Foundation; either version 2 or (at your option) any later version.
18 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
19 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
20 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
23 // You should have received a copy of the GNU General Public License along
24 // with eCos; if not, write to the Free Software Foundation, Inc.,
25 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
27 // As a special exception, if other files instantiate templates or use macros
28 // or inline functions from this file, or you compile this file and link it
29 // with other works to produce a work based on this file, this file does not
30 // by itself cause the resulting work to be covered by the GNU General Public
31 // License. However the source code for this file must still be made available
32 // in accordance with section (3) of the GNU General Public License.
34 // This exception does not invalidate any other reasons why a work based on
35 // this file might be covered by the GNU General Public License.
37 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
38 // at http://sources.redhat.com/ecos/ecos-license/
39 // -------------------------------------------
40 //####ECOSGPLCOPYRIGHTEND####
41 //==========================================================================
42 //#####DESCRIPTIONBEGIN####
44 // Author(s): rcassebohm
45 // Contributors:rcassebohm
47 // Purpose: AIM 711 RTC definitions for using DS1339
48 //####DESCRIPTIONEND####
49 //==========================================================================
51 #include <cyg/hal/hal_io.h>
54 #include CYGDAT_DEVS_WALLCLOCK_ARM_AIM711_CFG
56 static __inline__ void
57 DS_GET(cyg_uint8 *regs)
59 hal_ks32c_i2c_msg_t msgs[2];
61 cyg_uint8 offset = 0x00;
63 // write message to set the address
64 msgs[0].devaddr = AIM711_RTC_ADDR | KS32C_I2C_WR;
65 msgs[0].pbuf = &offset;
66 msgs[0].bufsize = sizeof(offset);
69 msgs[1].devaddr = AIM711_RTC_ADDR | KS32C_I2C_RD;
71 msgs[1].bufsize = DS_REGS_SIZE;
73 // transfer the messages
74 status = hal_ks32c_i2c_transfer(2, msgs);
77 diag_printf("%s - Can't read RTC\n", __FUNCTION__);
82 static __inline__ void
83 DS_PUT(cyg_uint8 *regs)
85 hal_ks32c_i2c_msg_t msg;
87 cyg_uint8 offset = 0x00;
88 cyg_uint8 buffer[1 + DS_REGS_SIZE];
91 memcpy(&buffer[1], regs, DS_REGS_SIZE);
94 msg.devaddr = AIM711_RTC_ADDR | KS32C_I2C_WR;
96 msg.bufsize = sizeof(buffer);
98 // transfer the messages
99 status = hal_ks32c_i2c_transfer(1, &msg);
102 diag_printf("%s - Can't write RTC\n", __FUNCTION__);
107 // EOF devs_wallclock_arm_aim711.inl