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

Convert the legacy multi gadget to the new interface of f_ecm,
so that later the compatibility layer in f_ecm can be removed.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Andrzej Pietrasiewicz 2013-10-09 10:08:25 +02:00 committed by Felipe Balbi
parent e6c661ef18
commit 7388901528
2 changed files with 61 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/usb/gadget/Kconfig
View File

@ -1070,6 +1070,7 @@ config USB_G_MULTI_CDC
bool "CDC Ethernet + CDC Serial + Storage configuration"
depends on USB_G_MULTI
default n
select USB_F_ECM
help
This option enables a configuration with CDC Ethernet (ECM), CDC
Serial and Mass Storage functions available in the Multifunction

68
drivers/usb/gadget/multi.c
View File

@ -15,6 +15,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/netdevice.h>
#include "u_serial.h"
#if defined USB_ETH_RNDIS
@ -44,8 +45,7 @@ MODULE_LICENSE("GPL");
#define USB_FMS_INCLUDED
#include "f_mass_storage.c"
#define USBF_ECM_INCLUDED
#include "f_ecm.c"
#include "u_ecm.h"
#ifdef USB_ETH_RNDIS
# define USB_FRNDIS_INCLUDED
# include "f_rndis.c"
@ -151,14 +151,14 @@ FSG_MODULE_PARAMETERS(/* no prefix */, fsg_mod_data);
static struct fsg_common fsg_common;
static u8 host_mac[ETH_ALEN];
static struct usb_function_instance *fi_acm;
static struct eth_dev *the_dev;
/********** RNDIS **********/
#ifdef USB_ETH_RNDIS
static u8 host_mac[ETH_ALEN];
static struct usb_function *f_acm_rndis;
static __init int rndis_do_config(struct usb_configuration *c)
@ -220,7 +220,9 @@ static __ref int rndis_config_register(struct usb_composite_dev *cdev)
/********** CDC ECM **********/
#ifdef CONFIG_USB_G_MULTI_CDC
static struct usb_function_instance *fi_ecm;
static struct usb_function *f_acm_multi;
static struct usb_function *f_ecm;
static __init int cdc_do_config(struct usb_configuration *c)
{
@ -231,14 +233,20 @@ static __init int cdc_do_config(struct usb_configuration *c)
c->bmAttributes |= USB_CONFIG_ATT_WAKEUP;
}
ret = ecm_bind_config(c, host_mac, the_dev);
f_ecm = usb_get_function(fi_ecm);
if (IS_ERR(f_ecm))
return PTR_ERR(f_ecm);
ret = usb_add_function(c, f_ecm);
if (ret < 0)
return ret;
goto err_func_ecm;
/* implicit port_num is zero */
f_acm_multi = usb_get_function(fi_acm);
if (IS_ERR(f_acm_multi))
return PTR_ERR(f_acm_multi);
if (IS_ERR(f_acm_multi)) {
ret = PTR_ERR(f_acm_multi);
goto err_func_acm;
}
ret = usb_add_function(c, f_acm_multi);
if (ret)
@ -253,6 +261,10 @@ err_fsg:
usb_remove_function(c, f_acm_multi);
err_conf:
usb_put_function(f_acm_multi);
err_func_acm:
usb_remove_function(c, f_ecm);
err_func_ecm:
usb_put_function(f_ecm);
return ret;
}
@ -285,6 +297,9 @@ static __ref int cdc_config_register(struct usb_composite_dev *cdev)
static int __ref multi_bind(struct usb_composite_dev *cdev)
{
struct usb_gadget *gadget = cdev->gadget;
#ifdef CONFIG_USB_G_MULTI_CDC
struct f_ecm_opts *ecm_opts;
#endif
int status;
if (!can_support_ecm(cdev->gadget)) {
@ -293,11 +308,39 @@ static int __ref multi_bind(struct usb_composite_dev *cdev)
return -EINVAL;
}
#ifdef CONFIG_USB_G_MULTI_CDC
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);
#elif defined USB_ETH_RNDIS
/* set up network link layer */
the_dev = gether_setup(cdev->gadget, dev_addr, host_addr, host_mac,
qmult);
if (IS_ERR(the_dev))
return PTR_ERR(the_dev);
#endif
#if (defined CONFIG_USB_G_MULTI_CDC && defined USB_ETH_RNDIS)
gether_set_gadget(ecm_opts->net, cdev->gadget);
status = gether_register_netdev(ecm_opts->net);
if (status)
goto fail0;
ecm_opts->bound = true;
gether_get_host_addr_u8(ecm_opts->net, host_mac);
#endif
/* set up serial link layer */
fi_acm = usb_get_function_instance("acm");
@ -345,7 +388,11 @@ fail2:
fail1:
usb_put_function_instance(fi_acm);
fail0:
#ifdef CONFIG_USB_G_MULTI_CDC
usb_put_function_instance(fi_ecm);
#else
gether_cleanup(the_dev);
#endif
return status;
}
@ -358,7 +405,12 @@ static int __exit multi_unbind(struct usb_composite_dev *cdev)
usb_put_function(f_acm_rndis);
#endif
usb_put_function_instance(fi_acm);
#ifdef CONFIG_USB_G_MULTI_CDC
usb_put_function(f_ecm);
usb_put_function_instance(fi_ecm);
#else
gether_cleanup(the_dev);
#endif
return 0;
}