Commit e2224214 authored by Cédric Le Goater's avatar Cédric Le Goater Committed by Peter Maydell
Browse files

smbus: add a smbus_eeprom_init_one() routine 



This is an helper routine to add a single EEPROM on an I2C bus. It can
be directly used by smbus_eeprom_init() which adds a certain number of
EEPROMs on mips and x86 machines.

Signed-off-by: default avatarCédric Le Goater <clg@kaod.org>
Reviewed-by: default avatarPhilippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180530064049.27976-5-clg@kaod.org
Signed-off-by: default avatarPeter Maydell <peter.maydell@linaro.org>
parent 6c4567c7

hw/i2c/smbus_eeprom.c

+11 −5
Original line number Diff line number Diff line
@@ -139,6 +139,16 @@ static void smbus_eeprom_register_types(void) 


type_init(smbus_eeprom_register_types)



void smbus_eeprom_init_one(I2CBus *smbus, uint8_t address, uint8_t *eeprom_buf)

{

    DeviceState *dev;



    dev = qdev_create((BusState *) smbus, "smbus-eeprom");

    qdev_prop_set_uint8(dev, "address", address);

    qdev_prop_set_ptr(dev, "data", eeprom_buf);

    qdev_init_nofail(dev);

}



void smbus_eeprom_init(I2CBus *smbus, int nb_eeprom,

                       const uint8_t *eeprom_spd, int eeprom_spd_size)

{
@@ -149,10 +159,6 @@ void smbus_eeprom_init(I2CBus *smbus, int nb_eeprom, 
    }



    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);

        smbus_eeprom_init_one(smbus, 0x50 + i, eeprom_buf + (i * 256));

    }

}

include/hw/i2c/smbus.h

+1 −0
Original line number Diff line number Diff line
@@ -76,6 +76,7 @@ int smbus_read_block(I2CBus *bus, uint8_t addr, uint8_t command, uint8_t *data); 
int smbus_write_block(I2CBus *bus, uint8_t addr, uint8_t command, uint8_t *data,

                      int len);



void smbus_eeprom_init_one(I2CBus *smbus, uint8_t address, uint8_t *eeprom_buf);

void smbus_eeprom_init(I2CBus *smbus, int nb_eeprom,

                       const uint8_t *eeprom_spd, int size);