From mboxrd@z Thu Jan 1 00:00:00 1970 From: Simon Glass Date: Wed, 25 Mar 2015 12:22:43 -0600 Subject: [U-Boot] [PATCH v2 55/80] dm: usb: Add support for USB ethernet devices with driver model In-Reply-To: <1427307788-7496-1-git-send-email-sjg@chromium.org> References: <1427307788-7496-1-git-send-email-sjg@chromium.org> Message-ID: <1427307788-7496-56-git-send-email-sjg@chromium.org> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de 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 --- 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 +#include #include +#include #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) -- 2.2.0.rc0.207.ga3a616c