diff options
Diffstat (limited to 'hw/smbus_eeprom.c')
| -rw-r--r-- | hw/smbus_eeprom.c | 156 |
1 files changed, 0 insertions, 156 deletions
diff --git a/hw/smbus_eeprom.c b/hw/smbus_eeprom.c deleted file mode 100644 index dff8403d6c..0000000000 --- a/hw/smbus_eeprom.c +++ /dev/null @@ -1,156 +0,0 @@ -/* - * QEMU SMBus EEPROM device - * - * Copyright (c) 2007 Arastra, Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ - -#include "hw/hw.h" -#include "hw/i2c.h" -#include "hw/smbus.h" - -//#define DEBUG - -typedef struct SMBusEEPROMDevice { - SMBusDevice smbusdev; - void *data; - uint8_t offset; -} SMBusEEPROMDevice; - -static void eeprom_quick_cmd(SMBusDevice *dev, uint8_t read) -{ -#ifdef DEBUG - printf("eeprom_quick_cmd: addr=0x%02x read=%d\n", dev->i2c.address, read); -#endif -} - -static void eeprom_send_byte(SMBusDevice *dev, uint8_t val) -{ - SMBusEEPROMDevice *eeprom = (SMBusEEPROMDevice *) dev; -#ifdef DEBUG - printf("eeprom_send_byte: addr=0x%02x val=0x%02x\n", - dev->i2c.address, val); -#endif - eeprom->offset = val; -} - -static uint8_t eeprom_receive_byte(SMBusDevice *dev) -{ - SMBusEEPROMDevice *eeprom = (SMBusEEPROMDevice *) dev; - uint8_t *data = eeprom->data; - uint8_t val = data[eeprom->offset++]; -#ifdef DEBUG - printf("eeprom_receive_byte: addr=0x%02x val=0x%02x\n", - dev->i2c.address, val); -#endif - return val; -} - -static void eeprom_write_data(SMBusDevice *dev, uint8_t cmd, uint8_t *buf, int len) -{ - SMBusEEPROMDevice *eeprom = (SMBusEEPROMDevice *) dev; - int n; -#ifdef DEBUG - printf("eeprom_write_byte: addr=0x%02x cmd=0x%02x val=0x%02x\n", - dev->i2c.address, cmd, buf[0]); -#endif - /* An page write operation is not a valid SMBus command. - It is a block write without a length byte. Fortunately we - get the full block anyway. */ - /* TODO: Should this set the current location? */ - if (cmd + len > 256) - n = 256 - cmd; - else - n = len; - memcpy(eeprom->data + cmd, buf, n); - len -= n; - if (len) - memcpy(eeprom->data, buf + n, len); -} - -static uint8_t eeprom_read_data(SMBusDevice *dev, uint8_t cmd, int n) -{ - SMBusEEPROMDevice *eeprom = (SMBusEEPROMDevice *) dev; - /* If this is the first byte then set the current position. */ - if (n == 0) - eeprom->offset = cmd; - /* As with writes, we implement block reads without the - SMBus length byte. */ - return eeprom_receive_byte(dev); -} - -static int smbus_eeprom_initfn(SMBusDevice *dev) -{ - SMBusEEPROMDevice *eeprom = (SMBusEEPROMDevice *)dev; - - eeprom->offset = 0; - return 0; -} - -static Property smbus_eeprom_properties[] = { - DEFINE_PROP_PTR("data", SMBusEEPROMDevice, data), - DEFINE_PROP_END_OF_LIST(), -}; - -static void smbus_eeprom_class_initfn(ObjectClass *klass, void *data) -{ - DeviceClass *dc = DEVICE_CLASS(klass); - SMBusDeviceClass *sc = SMBUS_DEVICE_CLASS(klass); - - sc->init = smbus_eeprom_initfn; - sc->quick_cmd = eeprom_quick_cmd; - sc->send_byte = eeprom_send_byte; - sc->receive_byte = eeprom_receive_byte; - sc->write_data = eeprom_write_data; - sc->read_data = eeprom_read_data; - dc->props = smbus_eeprom_properties; -} - -static const TypeInfo smbus_eeprom_info = { - .name = "smbus-eeprom", - .parent = TYPE_SMBUS_DEVICE, - .instance_size = sizeof(SMBusEEPROMDevice), - .class_init = smbus_eeprom_class_initfn, -}; - -static void smbus_eeprom_register_types(void) -{ - type_register_static(&smbus_eeprom_info); -} - -type_init(smbus_eeprom_register_types) - -void smbus_eeprom_init(i2c_bus *smbus, int nb_eeprom, - const uint8_t *eeprom_spd, int eeprom_spd_size) -{ - int i; - uint8_t *eeprom_buf = g_malloc0(8 * 256); /* XXX: make this persistent */ - if (eeprom_spd_size > 0) { - memcpy(eeprom_buf, eeprom_spd, eeprom_spd_size); - } - - for (i = 0; i < nb_eeprom; i++) { - DeviceState *eeprom; - eeprom = qdev_create((BusState *)smbus, "smbus-eeprom"); - qdev_prop_set_uint8(eeprom, "address", 0x50 + i); - qdev_prop_set_ptr(eeprom, "data", eeprom_buf + (i * 256)); - qdev_init_nofail(eeprom); - } -} |