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linux-xiaomi-chiron/drivers/usb/gadget/function
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Michael Grzeschik 87d76b5f1d usb: gadget: uvc: calculate the number of request depending on framesize 
The current limitation of possible number of requests being handled is
dependent on the gadget speed. It makes more sense to depend on the
typical frame size when calculating the number of requests. This patch
is changing this and is using the previous limits as boundaries for
reasonable minimum and maximum number of requests.

For a 1080p jpeg encoded video stream with a maximum imagesize of
e.g. 800kB with a maxburst of 8 and an multiplier of 1 the resulting
number of requests is calculated to 49.

        800768         1
nreqs = ------ * -------------- ~= 49
          2      (1024 * 8 * 1)

Tested-by: Dan Vacura <w36195@motorola.com>
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Link: https://lore.kernel.org/r/20220529223848.105914-2-m.grzeschik@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-10 11:50:54 +02:00
..
f_acm.c usb: gadget: f_acm: add support for USB_CDC_REQ_SEND_BREAK 2022-04-21 19:20:25 +02:00
f_ecm.c usb: fix various gadgets null ptr deref on 10gbps cabling. 2021-06-09 10:37:13 +02:00
f_eem.c usb: gadget: eem: fix echo command packet response issue 2021-06-21 11:27:22 +02:00
f_fs.c Linux 5.17-rc4 2022-02-14 09:04:36 +01:00
f_hid.c usb: gadget: f_hid: optional SETUP/SET_REPORT mode 2021-08-24 15:41:08 +02:00
f_loopback.c usb: fix various gadgets null ptr deref on 10gbps cabling. 2021-06-09 10:37:13 +02:00
f_mass_storage.c USB/Thunderbolt patches for 5.18-rc1 2022-03-26 13:08:25 -07:00
f_mass_storage.h
f_midi.c usb: gadget: f_midi: allow resetting index option 2021-11-17 14:40:43 +01:00
f_ncm.c usb: gadget: f_ncm: ncm_wrap_ntb - move var definitions into if statement 2021-07-21 10:04:19 +02:00
f_obex.c
f_phonet.c usb: gadget: f_phonet: Use struct_size() helper in kzalloc() 2022-01-26 14:01:28 +01:00
f_printer.c Linux 5.13-rc6 2021-06-14 09:18:07 +02:00
f_rndis.c usb: fix various gadgets null ptr deref on 10gbps cabling. 2021-06-09 10:37:13 +02:00
f_serial.c usb: gadget: f_serial: Ensure gserial disconnected during unbind 2022-01-26 13:57:59 +01:00
f_sourcesink.c usb: gadget: f_sourcesink: Fix isoc transfer for USB_SPEED_SUPER_PLUS 2022-01-26 13:41:53 +01:00
f_subset.c usb: fix various gadgets null ptr deref on 10gbps cabling. 2021-06-09 10:37:13 +02:00
f_tcm.c scsi: target: usb: Replace enable attr with ops.enable 2021-10-04 23:27:39 -04:00
f_uac1.c usb: gadget: f_uac1: allow changing interface name via configfs 2022-01-26 14:10:40 +01:00
f_uac1_legacy.c
f_uac2.c Linux 5.17-rc4 2022-02-14 09:04:36 +01:00
f_uvc.c usb: gadget: uvc: Fix comment blocks style 2022-06-10 11:20:30 +02:00
f_uvc.h
g_zero.h
Makefile
ndis.h
rndis.c usb: gadget: rndis: prevent integer overflow in rndis_set_response() 2022-03-15 15:48:57 +01:00
rndis.h usb: gadget: rndis: add spinlock for rndis response list 2022-02-24 11:16:57 +01:00
storage_common.c
storage_common.h
tcm.h
u_audio.c usb: gadget: u_audio: clean up some inconsistent indenting 2022-04-21 19:03:07 +02:00
u_audio.h usb: gadget: u_audio: Add suspend call 2022-01-26 14:06:09 +01:00
u_ecm.h
u_eem.h
u_ether.c usb: gadget: u_ether: fix race in setting MAC address in setup phase 2021-12-13 15:22:23 +01:00
u_ether.h usb: gadget: u_ether: support configuring interface names. 2021-01-15 16:08:53 +01:00
u_ether_configfs.h USB: gadget: u_ether: Fix a configfs return code 2021-03-10 09:36:12 +01:00
u_fs.h
u_gether.h
u_hid.h usb: gadget: f_hid: optional SETUP/SET_REPORT mode 2021-08-24 15:41:08 +02:00
u_midi.h usb: gadget: function: Fix inconsistent indent 2021-05-10 11:16:10 +02:00
u_ncm.h
u_phonet.h
u_printer.h
u_rndis.h
u_serial.c Merge 5.14-rc5 into tty-next 2021-08-09 08:52:46 +02:00
u_serial.h
u_tcm.h
u_uac1.h usb: gadget: f_uac1: allow changing interface name via configfs 2022-01-26 14:10:40 +01:00
u_uac1_legacy.c
u_uac1_legacy.h
u_uac2.h usb: gadget: f_uac2: Optionally determine bInterval for HS and SS 2022-01-31 14:26:18 +01:00
u_uvc.h usb: gadget: uvc: allow changing interface name via configfs 2022-04-21 18:14:34 +02:00
uac_common.h usb: gadget: u_audio: Support multiple sampling rates 2022-01-26 14:06:08 +01:00
uvc.h USB / Thunderbolt changes for 5.19-rc1 2022-06-03 11:17:49 -07:00
uvc_configfs.c usb: gadget: uvc: track frames in format entries 2022-05-05 22:10:36 +02:00
uvc_configfs.h usb: gadget: uvc: track frames in format entries 2022-05-05 22:10:36 +02:00
uvc_queue.c usb: gadget: uvc: calculate the number of request depending on framesize 2022-06-10 11:50:54 +02:00
uvc_queue.h usb: gadget: uvc: rework uvcg_queue_next_buffer to uvcg_complete_buffer 2022-04-21 18:15:33 +02:00
uvc_v4l2.c usb: gadget: uvc: allow for application to cleanly shutdown 2022-05-05 22:17:43 +02:00
uvc_v4l2.h
uvc_video.c usb: gadget: uvc: Fix comment blocks style 2022-06-10 11:20:30 +02:00
uvc_video.h usb: gadget: uvc: consistently use define for headerlen 2021-10-21 12:53:31 +02:00