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author | Sascha Hauer <s.hauer@pengutronix.de> | 2020-09-25 08:06:22 +0200 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2020-09-25 08:06:22 +0200 |
commit | faddac631a0e521780854ecf9a53f96481a32716 (patch) | |
tree | 292c866315fd161df41d90f4bbde1572b14415d1 /drivers/usb | |
parent | 1ab2e649dc0ccef7ee990b999e1d8f8c32e7cd24 (diff) | |
parent | 0d4d157cf0d42206491b7a1b417c9904a9abd553 (diff) | |
download | barebox-faddac631a0e521780854ecf9a53f96481a32716.tar.gz barebox-faddac631a0e521780854ecf9a53f96481a32716.tar.xz |
Merge branch 'for-next/net' into master
Diffstat (limited to 'drivers/usb')
-rw-r--r-- | drivers/usb/core/usb.c | 12 | ||||
-rw-r--r-- | drivers/usb/gadget/f_fastboot.c | 54 |
2 files changed, 52 insertions, 14 deletions
diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c index 30c251f405..c068c64c6b 100644 --- a/drivers/usb/core/usb.c +++ b/drivers/usb/core/usb.c @@ -75,28 +75,30 @@ static int host_busnum = 1; static inline int usb_host_acquire(struct usb_host *host) { - if (host->sem) + if (slice_acquired(&host->slice)) return -EAGAIN; - host->sem++; + + slice_acquire(&host->slice); + return 0; } static inline void usb_host_release(struct usb_host *host) { - if (host->sem > 0) - host->sem--; + slice_release(&host->slice); } int usb_register_host(struct usb_host *host) { list_add_tail(&host->list, &host_list); host->busnum = host_busnum++; - host->sem = 0; + slice_init(&host->slice, dev_name(host->hw_dev)); return 0; } void usb_unregister_host(struct usb_host *host) { + slice_exit(&host->slice); list_del(&host->list); } diff --git a/drivers/usb/gadget/f_fastboot.c b/drivers/usb/gadget/f_fastboot.c index f8a9c32530..da3e0c7a8f 100644 --- a/drivers/usb/gadget/f_fastboot.c +++ b/drivers/usb/gadget/f_fastboot.c @@ -21,6 +21,7 @@ #define pr_fmt(fmt) "fastboot: " fmt #include <dma.h> +#include <work.h> #include <unistd.h> #include <progress.h> #include <fastboot.h> @@ -39,6 +40,7 @@ struct f_fastboot { /* IN/OUT EP's and corresponding requests */ struct usb_ep *in_ep, *out_ep; struct usb_request *in_req, *out_req; + struct work_queue wq; }; static inline struct f_fastboot *func_to_fastboot(struct usb_function *f) @@ -136,6 +138,32 @@ static void fastboot_complete(struct usb_ep *ep, struct usb_request *req) { } +struct fastboot_work { + struct work_struct work; + struct f_fastboot *f_fb; + char command[FASTBOOT_MAX_CMD_LEN + 1]; +}; + +static void fastboot_do_work(struct work_struct *w) +{ + struct fastboot_work *fw = container_of(w, struct fastboot_work, work); + struct f_fastboot *f_fb = fw->f_fb; + + fastboot_exec_cmd(&f_fb->fastboot, fw->command); + + memset(f_fb->out_req->buf, 0, EP_BUFFER_SIZE); + usb_ep_queue(f_fb->out_ep, f_fb->out_req); + + free(fw); +} + +static void fastboot_work_cancel(struct work_struct *w) +{ + struct fastboot_work *fw = container_of(w, struct fastboot_work, work); + + free(fw); +} + static struct usb_request *fastboot_alloc_request(struct usb_ep *ep) { struct usb_request *req; @@ -172,6 +200,11 @@ static int fastboot_bind(struct usb_configuration *c, struct usb_function *f) f_fb->fastboot.cmd_exec = opts->common.cmd_exec; f_fb->fastboot.cmd_flash = opts->common.cmd_flash; + f_fb->wq.fn = fastboot_do_work; + f_fb->wq.cancel = fastboot_work_cancel; + + wq_register(&f_fb->wq); + ret = fastboot_generic_init(&f_fb->fastboot, opts->common.export_bbu); if (ret) return ret; @@ -246,6 +279,8 @@ static void fastboot_unbind(struct usb_configuration *c, struct usb_function *f) usb_ep_free_request(f_fb->out_ep, f_fb->out_req); f_fb->out_req = NULL; + wq_unregister(&f_fb->wq); + fastboot_generic_free(&f_fb->fastboot); } @@ -313,8 +348,6 @@ static struct usb_function *fastboot_alloc_func(struct usb_function_instance *fi f_fb = xzalloc(sizeof(*f_fb)); - INIT_LIST_HEAD(&f_fb->fastboot.variables); - f_fb->func.name = "fastboot"; f_fb->func.strings = fastboot_strings; f_fb->func.bind = fastboot_bind; @@ -430,16 +463,19 @@ static void fastboot_start_download_usb(struct fastboot *fb) static void rx_handler_command(struct usb_ep *ep, struct usb_request *req) { - char *cmdbuf = req->buf; struct f_fastboot *f_fb = req->context; + struct fastboot_work *w; + int len; if (req->status != 0) return; - *(cmdbuf + req->actual) = 0; - fastboot_exec_cmd(&f_fb->fastboot, cmdbuf); - *cmdbuf = '\0'; - req->actual = 0; - memset(req->buf, 0, EP_BUFFER_SIZE); - usb_ep_queue(ep, req); + w = xzalloc(sizeof(*w)); + w->f_fb = f_fb; + + len = min_t(unsigned int, req->actual, FASTBOOT_MAX_CMD_LEN); + + memcpy(w->command, req->buf, len); + + wq_queue_work(&f_fb->wq, &w->work); } |