Add support for scanning USB etghernet devices with driver model. This mostly involves scanning all buses since device numbering is not unique across buses.
Signed-off-by: Simon Glass sjg@chromium.org ---
Changes in v2: None
drivers/usb/eth/usb_ether.c | 52 ++++++++++++++++++++++++++++++++++++++------- 1 file changed, 44 insertions(+), 8 deletions(-)
diff --git a/drivers/usb/eth/usb_ether.c b/drivers/usb/eth/usb_ether.c index 7cb96e3..c72b7e4 100644 --- a/drivers/usb/eth/usb_ether.c +++ b/drivers/usb/eth/usb_ether.c @@ -5,7 +5,9 @@ */
#include <common.h> +#include <dm.h> #include <usb.h> +#include <dm/device-internal.h>
#include "usb_ether.h"
@@ -118,8 +120,6 @@ static void probe_valid_drivers(struct usb_device *dev) int usb_host_eth_scan(int mode) { int i, old_async; - struct usb_device *dev; -
if (mode == 1) printf(" scanning usb for ethernet devices... "); @@ -138,23 +138,59 @@ int usb_host_eth_scan(int mode) }
usb_max_eth_dev = 0; +#ifdef CONFIG_DM_USB + /* + * TODO: We should add USB_DEVICE() declarations to each USB ethernet + * driver and then most of this file can be removed. + */ + struct udevice *bus; + struct uclass *uc; + int ret; + + ret = uclass_get(UCLASS_USB, &uc); + if (ret) + return ret; + uclass_foreach_dev(bus, uc) { + for (i = 0; i < USB_MAX_DEVICE; i++) { + struct usb_device *dev; + + dev = usb_get_dev_index(bus, i); /* get device */ + debug("i=%d, %s\n", i, dev ? dev->dev->name : "(done)"); + if (!dev) + break; /* no more devices available */ + + /* + * find valid usb_ether driver for this device, + * if any + */ + probe_valid_drivers(dev); + + /* check limit */ + if (usb_max_eth_dev == USB_MAX_ETH_DEV) + break; + } /* for */ + } +#else for (i = 0; i < USB_MAX_DEVICE; i++) { + struct usb_device *dev; + dev = usb_get_dev_index(i); /* get device */ debug("i=%d\n", i); - if (dev == NULL) + if (!dev) break; /* no more devices available */
/* find valid usb_ether driver for this device, if any */ probe_valid_drivers(dev);
/* check limit */ - if (usb_max_eth_dev == USB_MAX_ETH_DEV) { - printf("max USB Ethernet Device reached: %d stopping\n", - usb_max_eth_dev); + if (usb_max_eth_dev == USB_MAX_ETH_DEV) break; - } } /* for */ - +#endif + if (usb_max_eth_dev == USB_MAX_ETH_DEV) { + printf("max USB Ethernet Device reached: %d stopping\n", + usb_max_eth_dev); + } usb_disable_asynch(old_async); /* restore asynch value */ printf("%d Ethernet Device(s) found\n", usb_max_eth_dev); if (usb_max_eth_dev > 0)