mirror of
https://github.com/sakumisu/CherryUSB.git
synced 2025-05-09 00:21:44 +08:00
327 lines
9.8 KiB
C
327 lines
9.8 KiB
C
/*
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* Copyright (c) 2024, sakumisu
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "usbh_core.h"
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#include "usbh_cp210x.h"
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#define DEV_FORMAT "/dev/ttyUSB%d"
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USB_NOCACHE_RAM_SECTION USB_MEM_ALIGNX uint8_t g_cp210x_buf[64];
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#define CONFIG_USBHOST_MAX_CP210X_CLASS 1
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static struct usbh_cp210x g_cp210x_class[CONFIG_USBHOST_MAX_CP210X_CLASS];
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static uint32_t g_devinuse = 0;
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static struct usbh_cp210x *usbh_cp210x_class_alloc(void)
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{
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int devno;
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for (devno = 0; devno < CONFIG_USBHOST_MAX_CP210X_CLASS; devno++) {
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if ((g_devinuse & (1 << devno)) == 0) {
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g_devinuse |= (1 << devno);
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memset(&g_cp210x_class[devno], 0, sizeof(struct usbh_cp210x));
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g_cp210x_class[devno].minor = devno;
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return &g_cp210x_class[devno];
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}
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}
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return NULL;
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}
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static void usbh_cp210x_class_free(struct usbh_cp210x *cp210x_class)
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{
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int devno = cp210x_class->minor;
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if (devno >= 0 && devno < 32) {
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g_devinuse &= ~(1 << devno);
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}
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memset(cp210x_class, 0, sizeof(struct usbh_cp210x));
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}
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static int usbh_cp210x_enable(struct usbh_cp210x *cp210x_class)
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{
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struct usb_setup_packet *setup;
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if (!cp210x_class || !cp210x_class->hport) {
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return -USB_ERR_INVAL;
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}
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setup = cp210x_class->hport->setup;
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setup->bmRequestType = USB_REQUEST_DIR_OUT | USB_REQUEST_VENDOR | USB_REQUEST_RECIPIENT_INTERFACE;
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setup->bRequest = CP210X_IFC_ENABLE;
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setup->wValue = 1;
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setup->wIndex = cp210x_class->intf;
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setup->wLength = 0;
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return usbh_control_transfer(cp210x_class->hport, setup, NULL);
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}
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static int usbh_cp210x_set_flow(struct usbh_cp210x *cp210x_class)
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{
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struct usb_setup_packet *setup;
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if (!cp210x_class || !cp210x_class->hport) {
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return -USB_ERR_INVAL;
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}
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setup = cp210x_class->hport->setup;
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setup->bmRequestType = USB_REQUEST_DIR_OUT | USB_REQUEST_VENDOR | USB_REQUEST_RECIPIENT_INTERFACE;
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setup->bRequest = CP210X_SET_FLOW;
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setup->wValue = 0;
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setup->wIndex = cp210x_class->intf;
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setup->wLength = 16;
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memset(g_cp210x_buf, 0, 16);
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g_cp210x_buf[13] = 0x20;
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return usbh_control_transfer(cp210x_class->hport, setup, g_cp210x_buf);
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}
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static int usbh_cp210x_set_chars(struct usbh_cp210x *cp210x_class)
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{
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struct usb_setup_packet *setup;
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if (!cp210x_class || !cp210x_class->hport) {
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return -USB_ERR_INVAL;
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}
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setup = cp210x_class->hport->setup;
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setup->bmRequestType = USB_REQUEST_DIR_OUT | USB_REQUEST_VENDOR | USB_REQUEST_RECIPIENT_INTERFACE;
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setup->bRequest = CP210X_SET_CHARS;
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setup->wValue = 0;
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setup->wIndex = cp210x_class->intf;
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setup->wLength = 6;
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memset(g_cp210x_buf, 0, 6);
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g_cp210x_buf[0] = 0x80;
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g_cp210x_buf[4] = 0x88;
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g_cp210x_buf[5] = 0x28;
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return usbh_control_transfer(cp210x_class->hport, setup, g_cp210x_buf);
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}
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static int usbh_cp210x_set_baudrate(struct usbh_cp210x *cp210x_class, uint32_t baudrate)
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{
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struct usb_setup_packet *setup;
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if (!cp210x_class || !cp210x_class->hport) {
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return -USB_ERR_INVAL;
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}
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setup = cp210x_class->hport->setup;
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setup->bmRequestType = USB_REQUEST_DIR_OUT | USB_REQUEST_VENDOR | USB_REQUEST_RECIPIENT_INTERFACE;
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setup->bRequest = CP210X_SET_BAUDRATE;
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setup->wValue = 0;
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setup->wIndex = cp210x_class->intf;
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setup->wLength = 4;
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memcpy(g_cp210x_buf, (uint8_t *)&baudrate, 4);
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return usbh_control_transfer(cp210x_class->hport, setup, g_cp210x_buf);
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}
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static int usbh_cp210x_set_data_format(struct usbh_cp210x *cp210x_class, uint8_t databits, uint8_t parity, uint8_t stopbits)
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{
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struct usb_setup_packet *setup;
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uint16_t value;
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if (!cp210x_class || !cp210x_class->hport) {
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return -USB_ERR_INVAL;
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}
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setup = cp210x_class->hport->setup;
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value = ((databits & 0x0F) << 8) | ((parity & 0x0f) << 4) | ((stopbits & 0x03) << 0);
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setup->bmRequestType = USB_REQUEST_DIR_OUT | USB_REQUEST_VENDOR | USB_REQUEST_RECIPIENT_INTERFACE;
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setup->bRequest = CP210X_SET_LINE_CTL;
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setup->wValue = value;
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setup->wIndex = cp210x_class->intf;
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setup->wLength = 0;
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return usbh_control_transfer(cp210x_class->hport, setup, NULL);
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}
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static int usbh_cp210x_set_mhs(struct usbh_cp210x *cp210x_class, uint8_t dtr, uint8_t rts, uint8_t dtr_mask, uint8_t rts_mask)
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{
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struct usb_setup_packet *setup;
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uint16_t value;
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if (!cp210x_class || !cp210x_class->hport) {
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return -USB_ERR_INVAL;
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}
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setup = cp210x_class->hport->setup;
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value = ((dtr & 0x01) << 0) | ((rts & 0x01) << 1) | ((dtr_mask & 0x01) << 8) | ((rts_mask & 0x01) << 9);
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setup->bmRequestType = USB_REQUEST_DIR_OUT | USB_REQUEST_VENDOR | USB_REQUEST_RECIPIENT_INTERFACE;
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setup->bRequest = CP210X_SET_MHS;
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setup->wValue = value;
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setup->wIndex = cp210x_class->intf;
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setup->wLength = 0;
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return usbh_control_transfer(cp210x_class->hport, setup, NULL);
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}
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int usbh_cp210x_set_line_coding(struct usbh_cp210x *cp210x_class, struct cdc_line_coding *line_coding)
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{
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memcpy((uint8_t *)&cp210x_class->line_coding, line_coding, sizeof(struct cdc_line_coding));
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usbh_cp210x_set_baudrate(cp210x_class, line_coding->dwDTERate);
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return usbh_cp210x_set_data_format(cp210x_class, line_coding->bDataBits, line_coding->bParityType, line_coding->bCharFormat);
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}
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int usbh_cp210x_get_line_coding(struct usbh_cp210x *cp210x_class, struct cdc_line_coding *line_coding)
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{
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memcpy(line_coding, (uint8_t *)&cp210x_class->line_coding, sizeof(struct cdc_line_coding));
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return 0;
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}
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int usbh_cp210x_set_line_state(struct usbh_cp210x *cp210x_class, bool dtr, bool rts)
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{
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return usbh_cp210x_set_mhs(cp210x_class, dtr, rts, 1, 1);
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}
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static int usbh_cp210x_connect(struct usbh_hubport *hport, uint8_t intf)
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{
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struct usb_endpoint_descriptor *ep_desc;
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int ret = 0;
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struct usbh_cp210x *cp210x_class = usbh_cp210x_class_alloc();
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if (cp210x_class == NULL) {
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USB_LOG_ERR("Fail to alloc cp210x_class\r\n");
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return -USB_ERR_NOMEM;
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}
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cp210x_class->hport = hport;
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cp210x_class->intf = intf;
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hport->config.intf[intf].priv = cp210x_class;
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usbh_cp210x_enable(cp210x_class);
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usbh_cp210x_set_flow(cp210x_class);
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usbh_cp210x_set_chars(cp210x_class);
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for (uint8_t i = 0; i < hport->config.intf[intf].altsetting[0].intf_desc.bNumEndpoints; i++) {
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ep_desc = &hport->config.intf[intf].altsetting[0].ep[i].ep_desc;
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if (ep_desc->bEndpointAddress & 0x80) {
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USBH_EP_INIT(cp210x_class->bulkin, ep_desc);
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} else {
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USBH_EP_INIT(cp210x_class->bulkout, ep_desc);
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}
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}
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snprintf(hport->config.intf[intf].devname, CONFIG_USBHOST_DEV_NAMELEN, DEV_FORMAT, cp210x_class->minor);
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USB_LOG_INFO("Register CP210X Class:%s\r\n", hport->config.intf[intf].devname);
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#if 0
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USB_LOG_INFO("Test cp2102 rx and tx and rx for 5 times, baudrate is 115200\r\n");
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struct cdc_line_coding linecoding;
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uint8_t count = 5;
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linecoding.dwDTERate = 115200;
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linecoding.bDataBits = 8;
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linecoding.bParityType = 0;
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linecoding.bCharFormat = 0;
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usbh_cp210x_set_line_coding(cp210x_class, &linecoding);
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usbh_cp210x_set_line_state(cp210x_class, true, false);
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memset(g_cp210x_buf, 'a', sizeof(g_cp210x_buf));
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ret = usbh_cp210x_bulk_out_transfer(cp210x_class, g_cp210x_buf, sizeof(g_cp210x_buf), 0xfffffff);
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USB_LOG_RAW("out ret:%d\r\n", ret);
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while (count--) {
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ret = usbh_cp210x_bulk_in_transfer(cp210x_class, g_cp210x_buf, sizeof(g_cp210x_buf), 0xfffffff);
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USB_LOG_RAW("in ret:%d\r\n", ret);
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if (ret > 0) {
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for (uint32_t i = 0; i < ret; i++) {
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USB_LOG_RAW("%02x ", g_cp210x_buf[i]);
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}
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USB_LOG_RAW("\r\n");
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}
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}
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#endif
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usbh_cp210x_run(cp210x_class);
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return ret;
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}
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static int usbh_cp210x_disconnect(struct usbh_hubport *hport, uint8_t intf)
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{
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int ret = 0;
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struct usbh_cp210x *cp210x_class = (struct usbh_cp210x *)hport->config.intf[intf].priv;
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if (cp210x_class) {
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if (cp210x_class->bulkin) {
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usbh_kill_urb(&cp210x_class->bulkin_urb);
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}
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if (cp210x_class->bulkout) {
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usbh_kill_urb(&cp210x_class->bulkout_urb);
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}
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if (hport->config.intf[intf].devname[0] != '\0') {
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USB_LOG_INFO("Unregister CP210X Class:%s\r\n", hport->config.intf[intf].devname);
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usbh_cp210x_stop(cp210x_class);
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}
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usbh_cp210x_class_free(cp210x_class);
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}
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return ret;
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}
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int usbh_cp210x_bulk_in_transfer(struct usbh_cp210x *cp210x_class, uint8_t *buffer, uint32_t buflen, uint32_t timeout)
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{
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int ret;
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struct usbh_urb *urb = &cp210x_class->bulkin_urb;
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usbh_bulk_urb_fill(urb, cp210x_class->hport, cp210x_class->bulkin, buffer, buflen, timeout, NULL, NULL);
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ret = usbh_submit_urb(urb);
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if (ret == 0) {
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ret = urb->actual_length;
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}
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return ret;
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}
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int usbh_cp210x_bulk_out_transfer(struct usbh_cp210x *cp210x_class, uint8_t *buffer, uint32_t buflen, uint32_t timeout)
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{
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int ret;
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struct usbh_urb *urb = &cp210x_class->bulkout_urb;
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usbh_bulk_urb_fill(urb, cp210x_class->hport, cp210x_class->bulkout, buffer, buflen, timeout, NULL, NULL);
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ret = usbh_submit_urb(urb);
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if (ret == 0) {
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ret = urb->actual_length;
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}
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return ret;
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}
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__WEAK void usbh_cp210x_run(struct usbh_cp210x *cp210x_class)
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{
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(void)cp210x_class;
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}
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__WEAK void usbh_cp210x_stop(struct usbh_cp210x *cp210x_class)
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{
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(void)cp210x_class;
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}
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static const uint16_t cp210x_id_table[][2] = {
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{ 0x10C4, 0xEA60 },
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{ 0, 0 },
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};
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const struct usbh_class_driver cp210x_class_driver = {
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.driver_name = "cp210x",
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.connect = usbh_cp210x_connect,
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.disconnect = usbh_cp210x_disconnect
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};
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CLASS_INFO_DEFINE const struct usbh_class_info cp210x_class_info = {
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.match_flags = USB_CLASS_MATCH_VID_PID | USB_CLASS_MATCH_INTF_CLASS,
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.class = 0xff,
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.subclass = 0x00,
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.protocol = 0x00,
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.id_table = cp210x_id_table,
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.class_driver = &cp210x_class_driver
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}; |