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smbus: Cleanup CX25871 device and track cmd

This commit is contained in:
Matt Borgerson 2019-07-03 23:04:48 -07:00
parent edf04b1364
commit 1f2ae93e5c
1 changed files with 36 additions and 27 deletions
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63
hw/xbox/smbus_cx25871.c
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@ -25,9 +25,12 @@
#include "qemu/osdep.h"
#include "hw/hw.h"
#include "hw/i2c/i2c.h"
#include "hw/i2c/smbus.h"
#include "hw/i2c/smbus_slave.h"
#include "smbus.h"
#define TYPE_SMBUS_CX25871 "smbus-cx25871"
#define SMBUS_CX25871(obj) OBJECT_CHECK(SMBusCX25871Device, (obj), TYPE_SMBUS_CX25871)
// #define DEBUG
#ifdef DEBUG
# define DPRINTF(format, ...) printf(format, ## __VA_ARGS__)
@ -38,55 +41,61 @@
typedef struct SMBusCX25871Device {
SMBusDevice smbusdev;
uint8_t registers[256];
uint8_t cmd;
} SMBusCX25871Device;
static void cx_quick_cmd(SMBusDevice *dev, uint8_t read)
static void smbus_cx25871_quick_cmd(SMBusDevice *dev, uint8_t read)
{
DPRINTF("cx_quick_cmd: addr=0x%02x read=%d\n", dev->i2c.address, read);
DPRINTF("smbus_cx25871_quick_cmd: addr=0x%02x read=%d\n", dev->i2c.address, read);
}
static void cx_send_byte(SMBusDevice *dev, uint8_t val)
static int smbus_cx25871_write_data(SMBusDevice *dev, uint8_t *buf, uint8_t len)
{
DPRINTF("cx_send_byte: addr=0x%02x val=0x%02x\n", dev->i2c.address, val);
}
SMBusCX25871Device *cx = SMBUS_CX25871(dev);
static uint8_t cx_receive_byte(SMBusDevice *dev)
{
DPRINTF("cx_receive_byte: addr=0x%02x\n", dev->i2c.address);
return 0;
}
cx->cmd = buf[0];
uint8_t cmd = cx->cmd;
buf++;
len--;
static void cx_write_data(SMBusDevice *dev, uint8_t cmd, uint8_t *buf, int len)
{
SMBusCX25871Device *cx = (SMBusCX25871Device *)dev;
DPRINTF("cx_write_byte: addr=0x%02x cmd=0x%02x val=0x%02x\n",
if (len < 1) return 0;
DPRINTF("smbus_cx25871_write_data: addr=0x%02x cmd=0x%02x val=0x%02x\n",
dev->i2c.address, cmd, buf[0]);
memcpy(cx->registers + cmd, buf, MIN(len, 256 - cmd));
return 0;
}
static uint8_t cx_read_data(SMBusDevice *dev, uint8_t cmd, int n)
static uint8_t smbus_cx25871_receive_byte(SMBusDevice *dev)
{
SMBusCX25871Device *cx = (SMBusCX25871Device *)dev;
DPRINTF("cx_read_data: addr=0x%02x cmd=0x%02x n=%d\n",
dev->i2c.address, cmd, n);
SMBusCX25871Device *cx = SMBUS_CX25871(dev);
DPRINTF("smbus_cx25871_receive_byte: addr=0x%02x cmd=0x%02x\n",
dev->i2c.address, cx->cmd);
return cx->registers[cx->cmd++];
}
return cx->registers[cmd];
static void smbus_cx25871_realize(DeviceState *dev, Error **errp)
{
SMBusCX25871Device *cx = SMBUS_CX25871(dev);
memset(cx->registers, 0, 256);
cx->cmd = 0;
}
static void smbus_cx25871_class_initfn(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
SMBusDeviceClass *sc = SMBUS_DEVICE_CLASS(klass);
sc->quick_cmd = cx_quick_cmd;
sc->send_byte = cx_send_byte;
sc->receive_byte = cx_receive_byte;
sc->write_data = cx_write_data;
sc->read_data = cx_read_data;
dc->realize = smbus_cx25871_realize;
sc->quick_cmd = smbus_cx25871_quick_cmd;
sc->receive_byte = smbus_cx25871_receive_byte;
sc->write_data = smbus_cx25871_write_data;
}
static TypeInfo smbus_cx25871_info = {
.name = "smbus-cx25871",
.name = TYPE_SMBUS_CX25871,
.parent = TYPE_SMBUS_DEVICE,
.instance_size = sizeof(SMBusCX25871Device),
.class_init = smbus_cx25871_class_initfn,
@ -102,7 +111,7 @@ type_init(smbus_cx25871_register_devices)
void smbus_cx25871_init(I2CBus *smbus, int address)
{
DeviceState *cx;
cx = qdev_create((BusState *)smbus, "smbus-cx25871");
cx = qdev_create((BusState *)smbus, TYPE_SMBUS_CX25871);
qdev_prop_set_uint8(cx, "address", address);
qdev_init_nofail(cx);
}