mirror of
https://github.com/sakumisu/CherryUSB.git
synced 2025-05-09 00:21:44 +08:00
add pl2303 host driver
This commit is contained in:
sakumisu
parent
b51da4fbf9
commit
e081642c76
@ -182,6 +182,8 @@ if GetDepend(['PKG_CHERRYUSB_HOST']):
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src += Glob('class/vendor/serial/usbh_ch34x.c')
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if GetDepend(['PKG_CHERRYUSB_HOST_CP210X']):
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src += Glob('class/vendor/serial/usbh_cp210x.c')
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if GetDepend(['PKG_CHERRYUSB_HOST_PL2303']):
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src += Glob('class/vendor/serial/usbh_pl2303.c')
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if GetDepend(['PKG_CHERRYUSB_HOST_TEMPLATE']):
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src += Glob('demo/usb_host.c')
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@ -193,6 +193,9 @@ if(CONFIG_CHERRYUSB_HOST)
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if(CONFIG_CHERRYUSB_HOST_FTDI)
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list(APPEND cherryusb_srcs ${CMAKE_CURRENT_LIST_DIR}/class/vendor/serial/usbh_ftdi.c)
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endif()
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if(CONFIG_CHERRYUSB_HOST_PL2303)
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list(APPEND cherryusb_srcs ${CMAKE_CURRENT_LIST_DIR}/class/vendor/serial/usbh_pl2303.c)
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endif()
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if(DEFINED CONFIG_CHERRYUSB_HOST_HCD)
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if("${CONFIG_CHERRYUSB_HOST_HCD}" STREQUAL "ehci_bouffalo")
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426
class/vendor/serial/usbh_pl2303.c
vendored
Normal file
426
class/vendor/serial/usbh_pl2303.c
vendored
Normal file
@ -0,0 +1,426 @@
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/*
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* Copyright (c) 2024, sakumisu
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* Copyright (c) 2024, Derek Konigsberg
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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_pl2303.h"
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#undef USB_DBG_TAG
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#define USB_DBG_TAG "usbh_pl2303"
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#include "usb_log.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_pl2303_buf[64];
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#define CONFIG_USBHOST_MAX_PL2303_CLASS 4
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#define UT_WRITE_VENDOR_DEVICE (USB_REQUEST_DIR_OUT | USB_REQUEST_VENDOR | USB_REQUEST_RECIPIENT_DEVICE)
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#define UT_READ_VENDOR_DEVICE (USB_REQUEST_DIR_IN | USB_REQUEST_VENDOR | USB_REQUEST_RECIPIENT_DEVICE)
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static struct usbh_pl2303 g_pl2303_class[CONFIG_USBHOST_MAX_PL2303_CLASS];
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static uint32_t g_devinuse = 0;
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static struct usbh_pl2303 *usbh_pl2303_class_alloc(void)
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{
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int devno;
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for (devno = 0; devno < CONFIG_USBHOST_MAX_PL2303_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_pl2303_class[devno], 0, sizeof(struct usbh_pl2303));
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g_pl2303_class[devno].minor = devno;
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return &g_pl2303_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_pl2303_class_free(struct usbh_pl2303 *pl2303_class)
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{
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int devno = pl2303_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(pl2303_class, 0, sizeof(struct usbh_pl2303));
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}
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static int usbh_pl2303_get_chiptype(struct usbh_pl2303 *pl2303_class)
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{
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int ret = 0;
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switch (pl2303_class->hport->device_desc.bcdDevice) {
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case 0x0300:
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pl2303_class->chiptype = USBH_PL2303_TYPE_PL2303HX;
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/* or TA, that is HX with external crystal */
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break;
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case 0x0400:
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pl2303_class->chiptype = USBH_PL2303_TYPE_PL2303HXD;
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/* or EA, that is HXD with ESD protection */
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/* or RA, that has internal voltage level converter that works only up to 1Mbaud (!) */
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break;
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case 0x0500:
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pl2303_class->chiptype = USBH_PL2303_TYPE_PL2303HXD;
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/* in fact it's TB, that is HXD with external crystal */
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break;
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default:
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/* NOTE: I have no info about the bcdDevice for the base PL2303 (up to 1.2Mbaud,
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only fixed rates) and for PL2303SA (8-pin chip, up to 115200 baud */
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/* Determine the chip type. This algorithm is taken from Linux. */
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if (pl2303_class->hport->device_desc.bDeviceClass == 0x02) {
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pl2303_class->chiptype = USBH_PL2303_TYPE_PL2303;
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} else if (pl2303_class->hport->device_desc.bMaxPacketSize0 == 0x40) {
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pl2303_class->chiptype = USBH_PL2303_TYPE_PL2303HX;
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} else {
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pl2303_class->chiptype = USBH_PL2303_TYPE_PL2303;
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}
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break;
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}
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/*
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* The new chip revision PL2303HXN is only compatible with the new
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* PLCOM_SET_REQUEST_PL2303HXN command. Issuing the old command
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* PLCOM_SET_REQUEST to the new chip raises an error. Thus, PL2303HX
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* and PL2303HXN can be distinguished by issuing an old-style request
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* (on a status register) to the new chip and checking the error.
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*/
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if (pl2303_class->chiptype == USBH_PL2303_TYPE_PL2303HX) {
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struct usb_setup_packet *setup = pl2303_class->hport->setup;
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setup->bmRequestType = UT_READ_VENDOR_DEVICE;
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setup->bRequest = PL2303_SET_REQUEST;
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setup->wValue = PL2303_STATUS_REG_PL2303HX;
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setup->wIndex = 0;
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setup->wLength = 1;
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ret = usbh_control_transfer(pl2303_class->hport, setup, g_pl2303_buf);
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if (ret == -USB_ERR_STALL) {
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pl2303_class->chiptype = USBH_PL2303_TYPE_PL2303HXN;
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ret = 0;
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} else if (ret < 0) {
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USB_LOG_WRN("Error checking chip type: %d\r\n", ret);
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return ret;
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}
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}
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switch (pl2303_class->chiptype) {
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case USBH_PL2303_TYPE_PL2303:
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USB_LOG_INFO("chiptype = 2303\r\n");
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break;
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case USBH_PL2303_TYPE_PL2303HX:
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USB_LOG_INFO("chiptype = 2303HX/TA\r\n");
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break;
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case USBH_PL2303_TYPE_PL2303HXN:
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USB_LOG_INFO("chiptype = 2303HXN\r\n");
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break;
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case USBH_PL2303_TYPE_PL2303HXD:
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USB_LOG_INFO("chiptype = 2303HXD/TB/RA/EA\r\n");
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break;
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default:
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USB_LOG_INFO("chiptype = [%d]\r\n", pl2303_class->chiptype);
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break;
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}
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return ret;
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}
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static int usbh_pl2303_do(struct usbh_pl2303 *pl2303_class,
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uint8_t req_type, uint8_t request, uint16_t value, uint16_t index,
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uint16_t length)
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{
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struct usb_setup_packet *setup = pl2303_class->hport->setup;
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setup->bmRequestType = req_type;
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setup->bRequest = request;
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setup->wValue = value;
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setup->wIndex = index;
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setup->wLength = length;
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return usbh_control_transfer(pl2303_class->hport, setup, g_pl2303_buf);
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}
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int usbh_pl2303_set_line_coding(struct usbh_pl2303 *pl2303_class, struct cdc_line_coding *line_coding)
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{
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struct usb_setup_packet *setup = pl2303_class->hport->setup;
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setup->bmRequestType = USB_REQUEST_DIR_OUT | USB_REQUEST_CLASS | USB_REQUEST_RECIPIENT_INTERFACE;
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setup->bRequest = CDC_REQUEST_SET_LINE_CODING;
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setup->wValue = 0;
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setup->wIndex = pl2303_class->intf;
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setup->wLength = 7;
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memcpy(g_pl2303_buf, line_coding, sizeof(struct cdc_line_coding));
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return usbh_control_transfer(pl2303_class->hport, setup, g_pl2303_buf);
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}
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int usbh_pl2303_get_line_coding(struct usbh_pl2303 *pl2303_class, struct cdc_line_coding *line_coding)
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{
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struct usb_setup_packet *setup = pl2303_class->hport->setup;
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int ret;
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setup->bmRequestType = USB_REQUEST_DIR_IN | USB_REQUEST_CLASS | USB_REQUEST_RECIPIENT_INTERFACE;
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setup->bRequest = CDC_REQUEST_GET_LINE_CODING;
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setup->wValue = 0;
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setup->wIndex = pl2303_class->intf;
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setup->wLength = 7;
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ret = usbh_control_transfer(pl2303_class->hport, setup, g_pl2303_buf);
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if (ret < 0) {
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return ret;
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}
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memcpy(line_coding, g_pl2303_buf, sizeof(struct cdc_line_coding));
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return ret;
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}
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int usbh_pl2303_set_line_state(struct usbh_pl2303 *pl2303_class, bool dtr, bool rts)
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{
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struct usb_setup_packet *setup = pl2303_class->hport->setup;
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setup->bmRequestType = USB_REQUEST_DIR_OUT | USB_REQUEST_CLASS | USB_REQUEST_RECIPIENT_INTERFACE;
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setup->bRequest = CDC_REQUEST_SET_CONTROL_LINE_STATE;
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setup->wValue = (dtr << 0) | (rts << 1);
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setup->wIndex = pl2303_class->intf;
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setup->wLength = 0;
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return usbh_control_transfer(pl2303_class->hport, setup, NULL);
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}
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static int usbh_pl2303_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_pl2303 *pl2303_class = usbh_pl2303_class_alloc();
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if (pl2303_class == NULL) {
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USB_LOG_ERR("Fail to alloc pl2303_class\r\n");
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return -USB_ERR_NOMEM;
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}
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pl2303_class->hport = hport;
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pl2303_class->intf = intf;
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hport->config.intf[intf].priv = pl2303_class;
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do {
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ret = usbh_pl2303_get_chiptype(pl2303_class);
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if (ret < 0) {
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break;
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}
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/* Startup reset sequence, if necessary for the chip type */
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if (pl2303_class->chiptype != USBH_PL2303_TYPE_PL2303HXN) {
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struct usb_setup_packet *setup = pl2303_class->hport->setup;
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setup->bmRequestType = UT_WRITE_VENDOR_DEVICE;
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setup->bRequest = PL2303_SET_REQUEST;
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setup->wValue = 0;
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setup->wIndex = pl2303_class->intf;
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setup->wLength = 0;
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ret = usbh_control_transfer(pl2303_class->hport, setup, g_pl2303_buf);
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if (ret < 0) {
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USB_LOG_WRN("Initialization reset failed: %d\r\n", ret);
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break;
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}
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}
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if (pl2303_class->chiptype == USBH_PL2303_TYPE_PL2303) {
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/* HX variants seem to lock up after a clear stall request. */
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/*
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* The FreeBSD code sets the stall flags on the in and out pipes
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* here. Have no idea exactly how to do this, or if it is necessary.
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* May just leave this code unwritten until test hardware is available.
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*/
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} else if (pl2303_class->chiptype == USBH_PL2303_TYPE_PL2303HX || pl2303_class->chiptype == USBH_PL2303_TYPE_PL2303HXD) {
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/* Reset upstream data pipes */
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ret = usbh_pl2303_do(pl2303_class, UT_WRITE_VENDOR_DEVICE, PL2303_SET_REQUEST, 8, 0, 0);
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if (ret < 0) {
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USB_LOG_WRN("Could not reset upstream data pipes (8,0): %d\r\n", ret);
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break;
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}
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ret = usbh_pl2303_do(pl2303_class, UT_WRITE_VENDOR_DEVICE, PL2303_SET_REQUEST, 9, 0, 0);
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if (ret < 0) {
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USB_LOG_WRN("Could not reset upstream data pipes (9,0): %d\r\n", ret);
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break;
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}
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} else if (pl2303_class->chiptype == USBH_PL2303_TYPE_PL2303HXN) {
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/* Reset upstream data pipes */
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ret = usbh_pl2303_do(pl2303_class, UT_WRITE_VENDOR_DEVICE, PL2303_SET_REQUEST_PL2303HXN, 0x07, 0x03, 0);
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if (ret < 0) {
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USB_LOG_WRN("Could not reset upstream data pipes (7,3): %d\r\n", ret);
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break;
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}
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}
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/* Final device initialization, if necessary for the chip type */
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if (pl2303_class->chiptype != USBH_PL2303_TYPE_PL2303HXN) {
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if (usbh_pl2303_do(pl2303_class, UT_READ_VENDOR_DEVICE, PL2303_SET_REQUEST, 0x8484, 0, 1) < 0 ||
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usbh_pl2303_do(pl2303_class, UT_WRITE_VENDOR_DEVICE, PL2303_SET_REQUEST, 0x0404, 0, 0) < 0 ||
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usbh_pl2303_do(pl2303_class, UT_READ_VENDOR_DEVICE, PL2303_SET_REQUEST, 0x8484, 0, 1) < 0 ||
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usbh_pl2303_do(pl2303_class, UT_READ_VENDOR_DEVICE, PL2303_SET_REQUEST, 0x8383, 0, 1) < 0 ||
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usbh_pl2303_do(pl2303_class, UT_READ_VENDOR_DEVICE, PL2303_SET_REQUEST, 0x8484, 0, 1) < 0 ||
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usbh_pl2303_do(pl2303_class, UT_WRITE_VENDOR_DEVICE, PL2303_SET_REQUEST, 0x0404, 1, 0) < 0 ||
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usbh_pl2303_do(pl2303_class, UT_READ_VENDOR_DEVICE, PL2303_SET_REQUEST, 0x8484, 0, 1) < 0 ||
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usbh_pl2303_do(pl2303_class, UT_READ_VENDOR_DEVICE, PL2303_SET_REQUEST, 0x8383, 0, 1) < 0 ||
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usbh_pl2303_do(pl2303_class, UT_WRITE_VENDOR_DEVICE, PL2303_SET_REQUEST, 0, 1, 0) < 0 ||
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usbh_pl2303_do(pl2303_class, UT_WRITE_VENDOR_DEVICE, PL2303_SET_REQUEST, 1, 0, 0) < 0) {
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USB_LOG_WRN("Could not complete init sequence\r\n");
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ret = -USB_ERR_INVAL;
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break;
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}
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if (pl2303_class->chiptype != USBH_PL2303_TYPE_PL2303) {
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ret = usbh_pl2303_do(pl2303_class, UT_WRITE_VENDOR_DEVICE, PL2303_SET_REQUEST, 2, 0x44, 0);
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} else {
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ret = usbh_pl2303_do(pl2303_class, UT_WRITE_VENDOR_DEVICE, PL2303_SET_REQUEST, 2, 0x24, 0);
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}
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if (ret < 0) {
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USB_LOG_WRN("Could not complete final init request: %d\r\n", ret);
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break;
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}
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}
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} while (0);
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if (ret < 0) {
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USB_LOG_ERR("Failed to initialize PL2303 device: %d\r\n", ret);
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return ret;
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}
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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 (USB_GET_ENDPOINT_TYPE(ep_desc->bmAttributes) == USB_ENDPOINT_TYPE_INTERRUPT) {
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continue;
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} else {
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if (ep_desc->bEndpointAddress & 0x80) {
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USBH_EP_INIT(pl2303_class->bulkin, ep_desc);
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} else {
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USBH_EP_INIT(pl2303_class->bulkout, ep_desc);
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}
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}
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}
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snprintf(hport->config.intf[intf].devname, CONFIG_USBHOST_DEV_NAMELEN, DEV_FORMAT, pl2303_class->minor);
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USB_LOG_INFO("Register PL2303 Class:%s\r\n", hport->config.intf[intf].devname);
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#if 0
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USB_LOG_INFO("Test pl2303 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_pl2303_set_line_coding(pl2303_class, &linecoding);
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usbh_pl2303_set_line_state(pl2303_class, true, false);
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memset(g_pl2303_buf, 'a', sizeof(g_pl2303_buf));
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ret = usbh_pl2303_bulk_out_transfer(pl2303_class, g_pl2303_buf, sizeof(g_pl2303_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_pl2303_bulk_in_transfer(pl2303_class, g_pl2303_buf, sizeof(g_pl2303_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_pl2303_buf[i]);
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}
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}
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USB_LOG_RAW("\r\n");
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}
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#endif
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usbh_pl2303_run(pl2303_class);
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return ret;
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}
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static int usbh_pl2303_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_pl2303 *pl2303_class = (struct usbh_pl2303 *)hport->config.intf[intf].priv;
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if (pl2303_class) {
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if (pl2303_class->bulkin) {
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usbh_kill_urb(&pl2303_class->bulkin_urb);
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}
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if (pl2303_class->bulkout) {
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usbh_kill_urb(&pl2303_class->bulkout_urb);
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}
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if (hport->config.intf[intf].devname[0] != '\0') {
|
||||
USB_LOG_INFO("Unregister PL2303 Class:%s\r\n", hport->config.intf[intf].devname);
|
||||
usbh_pl2303_stop(pl2303_class);
|
||||
}
|
||||
|
||||
usbh_pl2303_class_free(pl2303_class);
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
int usbh_pl2303_bulk_in_transfer(struct usbh_pl2303 *pl2303_class, uint8_t *buffer, uint32_t buflen, uint32_t timeout)
|
||||
{
|
||||
int ret;
|
||||
struct usbh_urb *urb = &pl2303_class->bulkin_urb;
|
||||
|
||||
usbh_bulk_urb_fill(urb, pl2303_class->hport, pl2303_class->bulkin, buffer, buflen, timeout, NULL, NULL);
|
||||
ret = usbh_submit_urb(urb);
|
||||
if (ret == 0) {
|
||||
ret = urb->actual_length;
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
int usbh_pl2303_bulk_out_transfer(struct usbh_pl2303 *pl2303_class, uint8_t *buffer, uint32_t buflen, uint32_t timeout)
|
||||
{
|
||||
int ret;
|
||||
struct usbh_urb *urb = &pl2303_class->bulkout_urb;
|
||||
|
||||
usbh_bulk_urb_fill(urb, pl2303_class->hport, pl2303_class->bulkout, buffer, buflen, timeout, NULL, NULL);
|
||||
ret = usbh_submit_urb(urb);
|
||||
if (ret == 0) {
|
||||
ret = urb->actual_length;
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
__WEAK void usbh_pl2303_run(struct usbh_pl2303 *pl2303_class)
|
||||
{
|
||||
}
|
||||
|
||||
__WEAK void usbh_pl2303_stop(struct usbh_pl2303 *pl2303_class)
|
||||
{
|
||||
}
|
||||
|
||||
static const uint16_t pl2303_id_table[][2] = {
|
||||
{ 0x067B, 0x2303 }, // PL2303 Serial (ATEN/IOGEAR UC232A)
|
||||
{ 0x067B, 0x23A3 }, // PL2303HXN Serial, type GC
|
||||
{ 0x067B, 0x23B3 }, // PL2303HXN Serial, type GB
|
||||
{ 0x067B, 0x23C3 }, // PL2303HXN Serial, type GT
|
||||
{ 0x067B, 0x23D3 }, // PL2303HXN Serial, type GL
|
||||
{ 0x067B, 0x23E3 }, // PL2303HXN Serial, type GE
|
||||
{ 0x067B, 0x23F3 }, // PL2303HXN Serial, type GS
|
||||
{ 0, 0 },
|
||||
};
|
||||
|
||||
const struct usbh_class_driver pl2303_class_driver = {
|
||||
.driver_name = "pl2303",
|
||||
.connect = usbh_pl2303_connect,
|
||||
.disconnect = usbh_pl2303_disconnect
|
||||
};
|
||||
|
||||
CLASS_INFO_DEFINE const struct usbh_class_info pl2303_class_info = {
|
||||
.match_flags = USB_CLASS_MATCH_VID_PID | USB_CLASS_MATCH_INTF_CLASS,
|
||||
.class = 0xff,
|
||||
.subclass = 0x00,
|
||||
.protocol = 0x00,
|
||||
.id_table = pl2303_id_table,
|
||||
.class_driver = &pl2303_class_driver
|
||||
};
|
||||
62
class/vendor/serial/usbh_pl2303.h
vendored
Normal file
62
class/vendor/serial/usbh_pl2303.h
vendored
Normal file
@ -0,0 +1,62 @@
|
||||
/*
|
||||
* Copyright (c) 2024, sakumisu
|
||||
*
|
||||
* SPDX-License-Identifier: Apache-2.0
|
||||
*/
|
||||
#ifndef USBH_PL2303_H
|
||||
#define USBH_PL2303_H
|
||||
|
||||
#include "usb_cdc.h"
|
||||
|
||||
#define PL2303_SET_REQUEST 0x01
|
||||
#define PL2303_SET_REQUEST_PL2303HXN 0x80
|
||||
#define PL2303_SET_CRTSCTS 0x41
|
||||
#define PL2303_SET_CRTSCTS_PL2303X 0x61
|
||||
#define PL2303_SET_CRTSCTS_PL2303HXN 0xFA
|
||||
#define PL2303_CLEAR_CRTSCTS_PL2303HXN 0xFF
|
||||
#define PL2303_CRTSCTS_REG_PL2303HXN 0x0A
|
||||
#define PL2303_STATUS_REG_PL2303HX 0x8080
|
||||
|
||||
/* Different PL2303 IC types */
|
||||
#define USBH_PL2303_TYPE_UNKNOWN 0
|
||||
#define USBH_PL2303_TYPE_PL2303 1
|
||||
#define USBH_PL2303_TYPE_PL2303HX 2
|
||||
#define USBH_PL2303_TYPE_PL2303HXD 3
|
||||
#define USBH_PL2303_TYPE_PL2303HXN 4
|
||||
|
||||
struct usbh_pl2303 {
|
||||
struct usbh_hubport *hport;
|
||||
struct usb_endpoint_descriptor *bulkin; /* Bulk IN endpoint */
|
||||
struct usb_endpoint_descriptor *bulkout; /* Bulk OUT endpoint */
|
||||
|
||||
struct usbh_urb bulkout_urb;
|
||||
struct usbh_urb bulkin_urb;
|
||||
|
||||
struct cdc_line_coding linecoding;
|
||||
|
||||
uint8_t intf;
|
||||
uint8_t minor;
|
||||
uint8_t chiptype;
|
||||
|
||||
void *user_data;
|
||||
};
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
int usbh_pl2303_set_line_coding(struct usbh_pl2303 *pl2303_class, struct cdc_line_coding *line_coding);
|
||||
int usbh_pl2303_get_line_coding(struct usbh_pl2303 *pl2303_class, struct cdc_line_coding *line_coding);
|
||||
int usbh_pl2303_set_line_state(struct usbh_pl2303 *pl2303_class, bool dtr, bool rts);
|
||||
|
||||
int usbh_pl2303_bulk_in_transfer(struct usbh_pl2303 *pl2303_class, uint8_t *buffer, uint32_t buflen, uint32_t timeout);
|
||||
int usbh_pl2303_bulk_out_transfer(struct usbh_pl2303 *pl2303_class, uint8_t *buffer, uint32_t buflen, uint32_t timeout);
|
||||
|
||||
void usbh_pl2303_run(struct usbh_pl2303 *pl2303_class);
|
||||
void usbh_pl2303_stop(struct usbh_pl2303 *pl2303_class);
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* USBH_PL2303_H */
|
||||
Loading…
x
Reference in New Issue
Block a user