diff options
Diffstat (limited to 'hw/i2c')
| -rw-r--r-- | hw/i2c/Kconfig | 5 | ||||
| -rw-r--r-- | hw/i2c/Makefile.objs | 1 | ||||
| -rw-r--r-- | hw/i2c/i2c-ddc.c | 127 |
3 files changed, 0 insertions, 133 deletions
diff --git a/hw/i2c/Kconfig b/hw/i2c/Kconfig index 820b24d..78a2008 100644 --- a/hw/i2c/Kconfig +++ b/hw/i2c/Kconfig @@ -5,11 +5,6 @@ config SMBUS_EEPROM bool depends on I2C -config DDC - bool - depends on I2C - select EDID - config VERSATILE_I2C bool select I2C diff --git a/hw/i2c/Makefile.objs b/hw/i2c/Makefile.objs index 5f76b6a..d7073a4 100644 --- a/hw/i2c/Makefile.objs +++ b/hw/i2c/Makefile.objs @@ -1,6 +1,5 @@ common-obj-$(CONFIG_I2C) += core.o smbus_slave.o smbus_master.o common-obj-$(CONFIG_SMBUS_EEPROM) += smbus_eeprom.o -common-obj-$(CONFIG_DDC) += i2c-ddc.o common-obj-$(CONFIG_VERSATILE_I2C) += versatile_i2c.o common-obj-$(CONFIG_ACPI_X86_ICH) += smbus_ich9.o common-obj-$(CONFIG_ACPI_SMBUS) += pm_smbus.o diff --git a/hw/i2c/i2c-ddc.c b/hw/i2c/i2c-ddc.c deleted file mode 100644 index 7aa8727..0000000 --- a/hw/i2c/i2c-ddc.c +++ /dev/null @@ -1,127 +0,0 @@ -/* A simple I2C slave for returning monitor EDID data via DDC. - * - * Copyright (c) 2011 Linaro Limited - * Written by Peter Maydell - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, see <http://www.gnu.org/licenses/>. - */ - -#include "qemu/osdep.h" -#include "qemu-common.h" -#include "qemu/log.h" -#include "hw/i2c/i2c.h" -#include "hw/i2c/i2c-ddc.h" - -#ifndef DEBUG_I2CDDC -#define DEBUG_I2CDDC 0 -#endif - -#define DPRINTF(fmt, ...) do { \ - if (DEBUG_I2CDDC) { \ - qemu_log("i2c-ddc: " fmt , ## __VA_ARGS__); \ - } \ -} while (0) - -static void i2c_ddc_reset(DeviceState *ds) -{ - I2CDDCState *s = I2CDDC(ds); - - s->firstbyte = false; - s->reg = 0; -} - -static int i2c_ddc_event(I2CSlave *i2c, enum i2c_event event) -{ - I2CDDCState *s = I2CDDC(i2c); - - if (event == I2C_START_SEND) { - s->firstbyte = true; - } - - return 0; -} - -static uint8_t i2c_ddc_rx(I2CSlave *i2c) -{ - I2CDDCState *s = I2CDDC(i2c); - - int value; - value = s->edid_blob[s->reg % sizeof(s->edid_blob)]; - s->reg++; - return value; -} - -static int i2c_ddc_tx(I2CSlave *i2c, uint8_t data) -{ - I2CDDCState *s = I2CDDC(i2c); - if (s->firstbyte) { - s->reg = data; - s->firstbyte = false; - DPRINTF("[EDID] Written new pointer: %u\n", data); - return 0; - } - - /* Ignore all writes */ - s->reg++; - return 0; -} - -static void i2c_ddc_init(Object *obj) -{ - I2CDDCState *s = I2CDDC(obj); - - qemu_edid_generate(s->edid_blob, sizeof(s->edid_blob), &s->edid_info); -} - -static const VMStateDescription vmstate_i2c_ddc = { - .name = TYPE_I2CDDC, - .version_id = 1, - .fields = (VMStateField[]) { - VMSTATE_BOOL(firstbyte, I2CDDCState), - VMSTATE_UINT8(reg, I2CDDCState), - VMSTATE_END_OF_LIST() - } -}; - -static Property i2c_ddc_properties[] = { - DEFINE_EDID_PROPERTIES(I2CDDCState, edid_info), - DEFINE_PROP_END_OF_LIST(), -}; - -static void i2c_ddc_class_init(ObjectClass *oc, void *data) -{ - DeviceClass *dc = DEVICE_CLASS(oc); - I2CSlaveClass *isc = I2C_SLAVE_CLASS(oc); - - dc->reset = i2c_ddc_reset; - dc->vmsd = &vmstate_i2c_ddc; - dc->props = i2c_ddc_properties; - isc->event = i2c_ddc_event; - isc->recv = i2c_ddc_rx; - isc->send = i2c_ddc_tx; -} - -static TypeInfo i2c_ddc_info = { - .name = TYPE_I2CDDC, - .parent = TYPE_I2C_SLAVE, - .instance_size = sizeof(I2CDDCState), - .instance_init = i2c_ddc_init, - .class_init = i2c_ddc_class_init -}; - -static void ddc_register_devices(void) -{ - type_register_static(&i2c_ddc_info); -} - -type_init(ddc_register_devices); |