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use actual request type as parameter

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At the moment, usbctrl_vendorreq's requesttype parameter must be set to
1 for reading and 0 for writing. It's then converted to the actual
bmRequestType for the USB control request. We can simplify the code and
avoid this conversion if the caller passes the actual bmRequestType.

This patch is an adaptation of commit 788fde031027 ("staging: rtl8188eu:
use actual request type as parameter") for the new r8188eu driver.

Link: https://lore.kernel.org/r/20210821164859.4351-3-martin@kaiser.cx
This commit is contained in:
Carlos Garces
2021-10-14 15:56:07 +02:00
parent a0549c5041
commit 4ddd7165fb
3 changed files with 16 additions and 29 deletions
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23
os_dep/linux/usb_ops_linux.c
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@@ -34,7 +34,6 @@ int usbctrl_vendorreq(struct intf_hdl *pintfhdl, u16 value, u16 index, void *pda
#ifdef CONFIG_USB_VENDOR_REQ_BUFFER_DYNAMIC_ALLOCATE
u32 tmp_buflen = 0;
#endif
u8 reqtype;
u8 *pIo_buf;
int vendorreq_times = 0;
@@ -94,32 +93,30 @@ int usbctrl_vendorreq(struct intf_hdl *pintfhdl, u16 value, u16 index, void *pda
goto release_mutex;
}
if (requesttype == VENDOR_READ)
if (requesttype == REALTEK_USB_VENQT_READ)
pipe = usb_rcvctrlpipe(udev, 0);/* read_in */
else
pipe = usb_sndctrlpipe(udev, 0);/* write_out */
while (++vendorreq_times <= MAX_USBCTRL_VENDORREQ_TIMES) {
if (requesttype == VENDOR_READ) {
if (requesttype == REALTEK_USB_VENQT_READ) {
memset(pIo_buf, 0, len);
reqtype = REALTEK_USB_VENQT_READ;
} else {
reqtype = REALTEK_USB_VENQT_WRITE;
memcpy(pIo_buf, pdata, len);
}
status = usb_control_msg(udev, pipe, REALTEK_USB_VENQT_CMD_REQ, reqtype, value, index, pIo_buf, len, RTW_USB_CONTROL_MSG_TIMEOUT);
status = usb_control_msg(udev, pipe, REALTEK_USB_VENQT_CMD_REQ, requesttype, value, index, pIo_buf, len, RTW_USB_CONTROL_MSG_TIMEOUT);
if (status == len) { /* Success this control transfer. */
rtw_reset_continual_io_error(pdvobjpriv);
if (requesttype == VENDOR_READ) {
if (requesttype == REALTEK_USB_VENQT_READ) {
/* For Control read transfer, we have to copy the read data from pIo_buf to pdata. */
memcpy(pdata, pIo_buf, len);
}
} else { /* error cases */
RTW_INFO("reg 0x%x, usb %s %u fail, status:%d value=0x%x, vendorreq_times:%d\n"
, value, (requesttype == VENDOR_READ) ? "read" : "write" , len, status, *(u32 *)pdata, vendorreq_times);
, value, (requesttype == REALTEK_USB_VENQT_READ) ? "read" : "write" , len, status, *(u32 *)pdata, vendorreq_times);
if (status < 0) {
if (status == (-ESHUTDOWN) || status == -ENODEV)
@@ -168,7 +165,6 @@ int usbctrl_vendorreq(struct intf_hdl *pintfhdl, u16 value, u16 index, void *pda
if (current_reg_sec == REG_ON_SEC) {
unsigned int t_pipe = usb_sndctrlpipe(udev, 0);/* write_out */
u8 t_reqtype = REALTEK_USB_VENQT_WRITE;
u8 t_len = 1;
u8 t_req = 0x05;
u16 t_reg = 0;
@@ -176,7 +172,7 @@ int usbctrl_vendorreq(struct intf_hdl *pintfhdl, u16 value, u16 index, void *pda
t_reg = 0x4e0;
status = usb_control_msg(udev, t_pipe, t_req, t_reqtype, t_reg, t_index, pIo_buf, t_len, RTW_USB_CONTROL_MSG_TIMEOUT);
status = usb_control_msg(udev, t_pipe, t_req, REALTEK_USB_VENQT_WRITE, t_reg, t_index, pIo_buf, t_len, RTW_USB_CONTROL_MSG_TIMEOUT);
if (status == t_len)
rtw_reset_continual_io_error(pdvobjpriv);
@@ -215,18 +211,15 @@ int _usbctrl_vendorreq_async_write(struct usb_device *udev, u8 request,
{
int rc;
unsigned int pipe;
u8 reqtype;
struct usb_ctrlrequest *dr;
struct urb *urb;
struct rtw_async_write_data *buf;
if (requesttype == VENDOR_READ) {
if (requesttype == REALTEK_USB_VENQT_READ) {
pipe = usb_rcvctrlpipe(udev, 0);/* read_in */
reqtype = REALTEK_USB_VENQT_READ;
} else {
pipe = usb_sndctrlpipe(udev, 0);/* write_out */
reqtype = REALTEK_USB_VENQT_WRITE;
}
buf = (struct rtl819x_async_write_data *)rtw_zmalloc(sizeof(*buf));
@@ -244,7 +237,7 @@ int _usbctrl_vendorreq_async_write(struct usb_device *udev, u8 request,
dr = &buf->dr;
dr->bRequestType = reqtype;
dr->bRequestType = requesttype;
dr->bRequest = request;
dr->wValue = cpu_to_le16(value);
dr->wIndex = cpu_to_le16(index);