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device/smbus: Reuse I2C bus operations where applicable

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Reuse generic I2C functions that work for SMBus operations as well.

Change-Id: I5a93f17b905de38752254891aa4347ba4ed3b205
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/20855
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This commit is contained in:
Nico Huber
2017-08-02 16:57:17 +02:00
committed by Martin Roth
parent 0594c5973c
commit 632d6abb8a
2 changed files with 24 additions and 53 deletions
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51
src/device/smbus_ops.c
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@ -15,35 +15,19 @@
* GNU General Public License for more details.
*/
#include <console/console.h>
#include <stdint.h>
#include <console/console.h>
#include <device/device.h>
#include <device/path.h>
#include <device/smbus.h>
struct bus *get_pbus_smbus(device_t dev)
{
struct bus *pbus = dev->bus;
while (pbus && pbus->dev && !ops_smbus_bus(pbus)) {
if (pbus->dev->bus != pbus) {
pbus = pbus->dev->bus;
}
else {
printk(BIOS_WARNING,
"%s Find SMBus bus operations: unable to proceed\n",
dev_path(dev));
break;
}
}
if (!pbus || !pbus->dev || !pbus->dev->ops
|| !pbus->dev->ops->ops_smbus_bus) {
struct bus *const pbus = i2c_link(dev);
if (!pbus->dev->ops->ops_smbus_bus) {
printk(BIOS_ALERT, "%s Cannot find SMBus bus operations",
dev_path(dev));
die("");
}
return pbus;
}
@ -91,35 +75,6 @@ int smbus_set_link(device_t dev)
return -1; \
}
int smbus_recv_byte(device_t dev)
{
CHECK_PRESENCE(recv_byte);
return ops_smbus_bus(get_pbus_smbus(dev))->recv_byte(dev);
}
int smbus_send_byte(device_t dev, u8 byte)
{
CHECK_PRESENCE(send_byte);
return ops_smbus_bus(get_pbus_smbus(dev))->send_byte(dev, byte);
}
int smbus_read_byte(device_t dev, u8 addr)
{
CHECK_PRESENCE(read_byte);
return ops_smbus_bus(get_pbus_smbus(dev))->read_byte(dev, addr);
}
int smbus_write_byte(device_t dev, u8 addr, u8 val)
{
CHECK_PRESENCE(write_byte);
return ops_smbus_bus(get_pbus_smbus(dev))->write_byte(dev, addr, val);
}
int smbus_block_read(device_t dev, u8 cmd, u8 bytes, u8 *buffer)
{
CHECK_PRESENCE(block_read);