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usb: gadget: g_ffs: convert to new interface of f_ecm 

There is a new funtion interface and g_ffs is the last gadget to use the old.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Andrzej Pietrasiewicz 2013-12-03 15:15:23 +01:00 committed by Felipe Balbi
parent 1ec8f00f34
commit f212ad4e39
2 changed files with 80 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/usb/gadget/Kconfig
View File

@ -895,6 +895,7 @@ config USB_FUNCTIONFS_ETH
bool "Include configuration with CDC ECM (Ethernet)"
depends on USB_FUNCTIONFS && NET
select USB_U_ETHER
select USB_F_ECM
help
Include a configuration with CDC ECM function (Ethernet) and the
Function Filesystem.

93
drivers/usb/gadget/g_ffs.c
View File

@ -28,8 +28,7 @@
# define USB_ETH_RNDIS y
# endif
#define USBF_ECM_INCLUDED
# include "f_ecm.c"
# include "u_ecm.h"
#define USB_FSUBSET_INCLUDED
# include "f_subset.c"
# ifdef USB_ETH_RNDIS
@ -39,11 +38,15 @@
# endif
# include "u_ether.h"
USB_ETHERNET_MODULE_PARAMETERS();
static u8 gfs_host_mac[ETH_ALEN];
static struct eth_dev *the_dev;
# ifdef CONFIG_USB_FUNCTIONFS_ETH
static int eth_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN],
struct eth_dev *dev);
static struct usb_function_instance *fi_ecm;
static struct usb_function *f_ecm;
# endif
#else
# define the_dev NULL
@ -76,10 +79,6 @@ struct gfs_ffs_obj {
USB_GADGET_COMPOSITE_OPTIONS();
#if defined CONFIG_USB_FUNCTIONFS_ETH || defined CONFIG_USB_FUNCTIONFS_RNDIS
USB_ETHERNET_MODULE_PARAMETERS();
#endif
static struct usb_device_descriptor gfs_dev_desc = {
.bLength = sizeof gfs_dev_desc,
.bDescriptorType = USB_DT_DEVICE,
@ -355,14 +354,50 @@ static int gfs_bind(struct usb_composite_dev *cdev)
if (missing_funcs)
return -ENODEV;
#if defined CONFIG_USB_FUNCTIONFS_ETH || defined CONFIG_USB_FUNCTIONFS_RNDIS
#if defined CONFIG_USB_FUNCTIONFS_ETH
if (can_support_ecm(cdev->gadget)) {
struct f_ecm_opts *ecm_opts;
fi_ecm = usb_get_function_instance("ecm");
if (IS_ERR(fi_ecm))
return PTR_ERR(fi_ecm);
ecm_opts = container_of(fi_ecm, struct f_ecm_opts, func_inst);
gether_set_qmult(ecm_opts->net, qmult);
if (!gether_set_host_addr(ecm_opts->net, host_addr))
pr_info("using host ethernet address: %s", host_addr);
if (!gether_set_dev_addr(ecm_opts->net, dev_addr))
pr_info("using self ethernet address: %s", dev_addr);
the_dev = netdev_priv(ecm_opts->net);
} else {
the_dev = gether_setup(cdev->gadget, dev_addr, host_addr,
gfs_host_mac, qmult);
}
#elif defined CONFIG_USB_FUNCTIONFS_RNDIS
the_dev = gether_setup(cdev->gadget, dev_addr, host_addr, gfs_host_mac,
qmult);
#endif
if (IS_ERR(the_dev)) {
ret = PTR_ERR(the_dev);
goto error_quick;
if (IS_ERR(the_dev))
return PTR_ERR(the_dev);
#if defined CONFIG_USB_FUNCTIONFS_RNDIS && defined CONFIG_USB_FUNCTIONFS_ETH
if (can_support_ecm(cdev->gadget)) {
struct f_ecm_opts *ecm_opts;
ecm_opts = container_of(fi_ecm, struct f_ecm_opts, func_inst);
gether_set_gadget(ecm_opts->net, cdev->gadget);
ret = gether_register_netdev(ecm_opts->net);
if (ret)
goto error;
ecm_opts->bound = true;
gether_get_host_addr_u8(ecm_opts->net, gfs_host_mac);
}
#endif
ret = usb_string_ids_tab(cdev, gfs_strings);
if (unlikely(ret < 0))
@ -398,9 +433,16 @@ error_unbind:
for (i = 0; i < func_num; i++)
functionfs_unbind(ffs_tab[i].ffs_data);
error:
#if defined CONFIG_USB_FUNCTIONFS_ETH
if (can_support_ecm(cdev->gadget))
usb_put_function_instance(fi_ecm);
else
gether_cleanup(the_dev);
the_dev = NULL;
#elif defined CONFIG_USB_FUNCTIONFS_RNDIS
gether_cleanup(the_dev);
the_dev = NULL;
error_quick:
#endif
return ret;
}
@ -413,8 +455,19 @@ static int gfs_unbind(struct usb_composite_dev *cdev)
ENTER();
#if defined CONFIG_USB_FUNCTIONFS_ETH
if (can_support_ecm(cdev->gadget)) {
usb_put_function(f_ecm);
usb_put_function_instance(fi_ecm);
} else {
gether_cleanup(the_dev);
}
the_dev = NULL;
#elif defined CONFIG_USB_FUNCTIONFS_RNDIS
gether_cleanup(the_dev);
the_dev = NULL;
#endif
/*
* We may have been called in an error recovery from
@ -483,9 +536,21 @@ static int gfs_do_config(struct usb_configuration *c)
static int eth_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN],
struct eth_dev *dev)
{
return can_support_ecm(c->cdev->gadget)
? ecm_bind_config(c, ethaddr, dev)
: geth_bind_config(c, ethaddr, dev);
int status = 0;
if (can_support_ecm(c->cdev->gadget)) {
f_ecm = usb_get_function(fi_ecm);
if (IS_ERR(f_ecm))
return PTR_ERR(f_ecm);
status = usb_add_function(c, f_ecm);
if (status < 0)
usb_put_function(f_ecm);
} else {
status = geth_bind_config(c, ethaddr, dev);
}
return status;
}
#endif