xref: /openbmc/qemu/include/hw/nvram/eeprom93xx.h (revision 47b5264eb3e1cd2825e48d28fd0d1b239ed53974)
1*0d09e41aSPaolo Bonzini /*
2*0d09e41aSPaolo Bonzini  * QEMU EEPROM 93xx emulation
3*0d09e41aSPaolo Bonzini  *
4*0d09e41aSPaolo Bonzini  * Copyright (c) 2006-2007 Stefan Weil
5*0d09e41aSPaolo Bonzini  *
6*0d09e41aSPaolo Bonzini  * This program is free software; you can redistribute it and/or modify
7*0d09e41aSPaolo Bonzini  * it under the terms of the GNU General Public License as published by
8*0d09e41aSPaolo Bonzini  * the Free Software Foundation; either version 2 of the License, or
9*0d09e41aSPaolo Bonzini  * (at your option) any later version.
10*0d09e41aSPaolo Bonzini  *
11*0d09e41aSPaolo Bonzini  * This program is distributed in the hope that it will be useful,
12*0d09e41aSPaolo Bonzini  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13*0d09e41aSPaolo Bonzini  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14*0d09e41aSPaolo Bonzini  * GNU General Public License for more details.
15*0d09e41aSPaolo Bonzini  *
16*0d09e41aSPaolo Bonzini  * You should have received a copy of the GNU General Public License
17*0d09e41aSPaolo Bonzini  * along with this program; if not, see <http://www.gnu.org/licenses/>.
18*0d09e41aSPaolo Bonzini  */
19*0d09e41aSPaolo Bonzini 
20*0d09e41aSPaolo Bonzini #ifndef EEPROM93XX_H
21*0d09e41aSPaolo Bonzini #define EEPROM93XX_H
22*0d09e41aSPaolo Bonzini 
23*0d09e41aSPaolo Bonzini typedef struct _eeprom_t eeprom_t;
24*0d09e41aSPaolo Bonzini 
25*0d09e41aSPaolo Bonzini /* Create a new EEPROM with (nwords * 2) bytes. */
26*0d09e41aSPaolo Bonzini eeprom_t *eeprom93xx_new(DeviceState *dev, uint16_t nwords);
27*0d09e41aSPaolo Bonzini 
28*0d09e41aSPaolo Bonzini /* Destroy an existing EEPROM. */
29*0d09e41aSPaolo Bonzini void eeprom93xx_free(DeviceState *dev, eeprom_t *eeprom);
30*0d09e41aSPaolo Bonzini 
31*0d09e41aSPaolo Bonzini /* Read from the EEPROM. */
32*0d09e41aSPaolo Bonzini uint16_t eeprom93xx_read(eeprom_t *eeprom);
33*0d09e41aSPaolo Bonzini 
34*0d09e41aSPaolo Bonzini /* Write to the EEPROM. */
35*0d09e41aSPaolo Bonzini void eeprom93xx_write(eeprom_t *eeprom, int eecs, int eesk, int eedi);
36*0d09e41aSPaolo Bonzini 
37*0d09e41aSPaolo Bonzini /* Get EEPROM data array. */
38*0d09e41aSPaolo Bonzini uint16_t *eeprom93xx_data(eeprom_t *eeprom);
39*0d09e41aSPaolo Bonzini 
40*0d09e41aSPaolo Bonzini #endif /* EEPROM93XX_H */
41