Initial import of qemu-2.4.1HEADmaster

3 files changed, 189 insertions, 0 deletions

diff --git a/include/hw/i2c/i2c.h b/include/hw/i2c/i2c.h
new file mode 100644
index 00000000..4986ebc7
--- /dev/null
+++ b/include/hw/i2c/i2c.h
@@ -0,0 +1,86 @@
+#ifndef QEMU_I2C_H
+#define QEMU_I2C_H
+
+#include "hw/qdev.h"
+
+/* The QEMU I2C implementation only supports simple transfers that complete
+   immediately.  It does not support slave devices that need to be able to
+   defer their response (eg. CPU slave interfaces where the data is supplied
+   by the device driver in response to an interrupt).  */
+
+enum i2c_event {
+    I2C_START_RECV,
+    I2C_START_SEND,
+    I2C_FINISH,
+    I2C_NACK /* Masker NACKed a receive byte.  */
+};
+
+typedef struct I2CSlave I2CSlave;
+
+#define TYPE_I2C_SLAVE "i2c-slave"
+#define I2C_SLAVE(obj) \
+     OBJECT_CHECK(I2CSlave, (obj), TYPE_I2C_SLAVE)
+#define I2C_SLAVE_CLASS(klass) \
+     OBJECT_CLASS_CHECK(I2CSlaveClass, (klass), TYPE_I2C_SLAVE)
+#define I2C_SLAVE_GET_CLASS(obj) \
+     OBJECT_GET_CLASS(I2CSlaveClass, (obj), TYPE_I2C_SLAVE)
+
+typedef struct I2CSlaveClass
+{
+    DeviceClass parent_class;
+
+    /* Callbacks provided by the device.  */
+    int (*init)(I2CSlave *dev);
+
+    /* Master to slave.  */
+    int (*send)(I2CSlave *s, uint8_t data);
+
+    /* Slave to master.  */
+    int (*recv)(I2CSlave *s);
+
+    /* Notify the slave of a bus state change.  */
+    void (*event)(I2CSlave *s, enum i2c_event event);
+} I2CSlaveClass;
+
+struct I2CSlave
+{
+    DeviceState qdev;
+
+    /* Remaining fields for internal use by the I2C code.  */
+    uint8_t address;
+};
+
+I2CBus *i2c_init_bus(DeviceState *parent, const char *name);
+void i2c_set_slave_address(I2CSlave *dev, uint8_t address);
+int i2c_bus_busy(I2CBus *bus);
+int i2c_start_transfer(I2CBus *bus, uint8_t address, int recv);
+void i2c_end_transfer(I2CBus *bus);
+void i2c_nack(I2CBus *bus);
+int i2c_send(I2CBus *bus, uint8_t data);
+int i2c_recv(I2CBus *bus);
+
+DeviceState *i2c_create_slave(I2CBus *bus, const char *name, uint8_t addr);
+
+/* wm8750.c */
+void wm8750_data_req_set(DeviceState *dev,
+                void (*data_req)(void *, int, int), void *opaque);
+void wm8750_dac_dat(void *opaque, uint32_t sample);
+uint32_t wm8750_adc_dat(void *opaque);
+void *wm8750_dac_buffer(void *opaque, int samples);
+void wm8750_dac_commit(void *opaque);
+void wm8750_set_bclk_in(void *opaque, int new_hz);
+
+/* lm832x.c */
+void lm832x_key_event(DeviceState *dev, int key, int state);
+
+extern const VMStateDescription vmstate_i2c_slave;
+
+#define VMSTATE_I2C_SLAVE(_field, _state) {                          \
+    .name       = (stringify(_field)),                               \
+    .size       = sizeof(I2CSlave),                                  \
+    .vmsd       = &vmstate_i2c_slave,                                \
+    .flags      = VMS_STRUCT,                                        \
+    .offset     = vmstate_offset_value(_state, _field, I2CSlave),    \
+}
+
+#endif
diff --git a/include/hw/i2c/pm_smbus.h b/include/hw/i2c/pm_smbus.h
new file mode 100644
index 00000000..926603fd
--- /dev/null
+++ b/include/hw/i2c/pm_smbus.h
@@ -0,0 +1,20 @@
+#ifndef PM_SMBUS_H
+#define PM_SMBUS_H
+
+typedef struct PMSMBus {
+    I2CBus *smbus;
+    MemoryRegion io;
+
+    uint8_t smb_stat;
+    uint8_t smb_ctl;
+    uint8_t smb_cmd;
+    uint8_t smb_addr;
+    uint8_t smb_data0;
+    uint8_t smb_data1;
+    uint8_t smb_data[32];
+    uint8_t smb_index;
+} PMSMBus;
+
+void pm_smbus_init(DeviceState *parent, PMSMBus *smb);
+
+#endif /* !PM_SMBUS_H */
diff --git a/include/hw/i2c/smbus.h b/include/hw/i2c/smbus.h
new file mode 100644
index 00000000..544bbc19
--- /dev/null
+++ b/include/hw/i2c/smbus.h
@@ -0,0 +1,83 @@
+#ifndef QEMU_SMBUS_H
+#define QEMU_SMBUS_H
+
+/*
+ * QEMU SMBus API
+ *
+ * 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/i2c/i2c.h"
+
+#define TYPE_SMBUS_DEVICE "smbus-device"
+#define SMBUS_DEVICE(obj) \
+     OBJECT_CHECK(SMBusDevice, (obj), TYPE_SMBUS_DEVICE)
+#define SMBUS_DEVICE_CLASS(klass) \
+     OBJECT_CLASS_CHECK(SMBusDeviceClass, (klass), TYPE_SMBUS_DEVICE)
+#define SMBUS_DEVICE_GET_CLASS(obj) \
+     OBJECT_GET_CLASS(SMBusDeviceClass, (obj), TYPE_SMBUS_DEVICE)
+
+typedef struct SMBusDeviceClass
+{
+    I2CSlaveClass parent_class;
+    int (*init)(SMBusDevice *dev);
+    void (*quick_cmd)(SMBusDevice *dev, uint8_t read);
+    void (*send_byte)(SMBusDevice *dev, uint8_t val);
+    uint8_t (*receive_byte)(SMBusDevice *dev);
+    /* We can't distinguish between a word write and a block write with
+       length 1, so pass the whole data block including the length byte
+       (if present).  The device is responsible figuring out what type of
+       command  this is.  */
+    void (*write_data)(SMBusDevice *dev, uint8_t cmd, uint8_t *buf, int len);
+    /* Likewise we can't distinguish between different reads, or even know
+       the length of the read until the read is complete, so read data a
+       byte at a time.  The device is responsible for adding the length
+       byte on block reads.  */
+    uint8_t (*read_data)(SMBusDevice *dev, uint8_t cmd, int n);
+} SMBusDeviceClass;
+
+struct SMBusDevice {
+    /* The SMBus protocol is implemented on top of I2C.  */
+    I2CSlave i2c;
+
+    /* Remaining fields for internal use only.  */
+    int mode;
+    int data_len;
+    uint8_t data_buf[34]; /* command + len + 32 bytes of data.  */
+    uint8_t command;
+};
+
+/* Master device commands.  */
+int smbus_quick_command(I2CBus *bus, uint8_t addr, int read);
+int smbus_receive_byte(I2CBus *bus, uint8_t addr);
+int smbus_send_byte(I2CBus *bus, uint8_t addr, uint8_t data);
+int smbus_read_byte(I2CBus *bus, uint8_t addr, uint8_t command);
+int smbus_write_byte(I2CBus *bus, uint8_t addr, uint8_t command, uint8_t data);
+int smbus_read_word(I2CBus *bus, uint8_t addr, uint8_t command);
+int smbus_write_word(I2CBus *bus, uint8_t addr, uint8_t command, uint16_t data);
+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(I2CBus *smbus, int nb_eeprom,
+                       const uint8_t *eeprom_spd, int size);
+
+#endif