| 1 |
/* |
| 2 |
* serial.h - Serial device driver |
| 3 |
* |
| 4 |
* Basilisk II (C) 1997-2008 Christian Bauer |
| 5 |
* |
| 6 |
* This program is free software; you can redistribute it and/or modify |
| 7 |
* it under the terms of the GNU General Public License as published by |
| 8 |
* the Free Software Foundation; either version 2 of the License, or |
| 9 |
* (at your option) any later version. |
| 10 |
* |
| 11 |
* This program is distributed in the hope that it will be useful, |
| 12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 |
* GNU General Public License for more details. |
| 15 |
* |
| 16 |
* You should have received a copy of the GNU General Public License |
| 17 |
* along with this program; if not, write to the Free Software |
| 18 |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 |
*/ |
| 20 |
|
| 21 |
#ifndef SERIAL_H |
| 22 |
#define SERIAL_H |
| 23 |
|
| 24 |
/* |
| 25 |
* port: |
| 26 |
* 0 - .AIn |
| 27 |
* 1 - .AOut |
| 28 |
* 2 - .BIn |
| 29 |
* 3 - .BOut |
| 30 |
*/ |
| 31 |
|
| 32 |
#ifdef POWERPC_ROM |
| 33 |
extern int16 SerialOpen(uint32 pb, uint32 dce); |
| 34 |
extern int16 SerialPrimeIn(uint32 pb, uint32 dce); |
| 35 |
extern int16 SerialPrimeOut(uint32 pb, uint32 dce); |
| 36 |
extern int16 SerialControl(uint32 pb, uint32 dce); |
| 37 |
extern int16 SerialStatus(uint32 pb, uint32 dce); |
| 38 |
extern int16 SerialClose(uint32 pb, uint32 dce); |
| 39 |
extern int16 SerialNothing(uint32 pb, uint32 dce); |
| 40 |
#else |
| 41 |
extern int16 SerialOpen(uint32 pb, uint32 dce, int port); |
| 42 |
extern int16 SerialPrime(uint32 pb, uint32 dce, int port); |
| 43 |
extern int16 SerialControl(uint32 pb, uint32 dce, int port); |
| 44 |
extern int16 SerialStatus(uint32 pb, uint32 dce, int port); |
| 45 |
extern int16 SerialClose(uint32 pb, uint32 dce, int port); |
| 46 |
#endif |
| 47 |
|
| 48 |
extern void SerialInterrupt(void); |
| 49 |
|
| 50 |
// System specific and internal functions/data |
| 51 |
extern void SerialInit(void); |
| 52 |
extern void SerialExit(void); |
| 53 |
|
| 54 |
// Serial driver Deferred Task structure |
| 55 |
enum { |
| 56 |
serdtCode = 20, // DT code is stored here |
| 57 |
serdtResult = 30, |
| 58 |
serdtDCE = 34, |
| 59 |
SIZEOF_serdt = 38 |
| 60 |
}; |
| 61 |
|
| 62 |
// Variables for one (In/Out combined) serial port |
| 63 |
// To implement a serial driver, you create a subclass of SERDPort |
| 64 |
class SERDPort { |
| 65 |
public: |
| 66 |
SERDPort() |
| 67 |
{ |
| 68 |
is_open = false; |
| 69 |
input_dt = output_dt = 0; |
| 70 |
} |
| 71 |
|
| 72 |
virtual ~SERDPort() {} |
| 73 |
|
| 74 |
virtual int16 open(uint16 config) = 0; |
| 75 |
virtual int16 prime_in(uint32 pb, uint32 dce) = 0; |
| 76 |
virtual int16 prime_out(uint32 pb, uint32 dce) = 0; |
| 77 |
virtual int16 control(uint32 pb, uint32 dce, uint16 code) = 0; |
| 78 |
virtual int16 status(uint32 pb, uint32 dce, uint16 code) = 0; |
| 79 |
virtual int16 close(void) = 0; |
| 80 |
|
| 81 |
bool is_open; // Port has been opened |
| 82 |
uint8 cum_errors; // Cumulative errors |
| 83 |
|
| 84 |
bool read_pending; // Read operation pending |
| 85 |
bool read_done; // Read operation complete |
| 86 |
uint32 input_dt; // Mac address of Deferred Task for reading |
| 87 |
|
| 88 |
bool write_pending; // Write operation pending |
| 89 |
bool write_done; // Write operation complete |
| 90 |
uint32 output_dt; // Mac address of Deferred Task for writing |
| 91 |
|
| 92 |
#ifdef POWERPC_ROM |
| 93 |
uint32 dt_store; |
| 94 |
#endif |
| 95 |
}; |
| 96 |
|
| 97 |
extern SERDPort *the_serd_port[2]; |
| 98 |
|
| 99 |
#endif |
