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-rw-r--r--drivers/usbtty.c657
1 files changed, 0 insertions, 657 deletions
diff --git a/drivers/usbtty.c b/drivers/usbtty.c
deleted file mode 100644
index 5dad20a470..0000000000
--- a/drivers/usbtty.c
+++ /dev/null
@@ -1,657 +0,0 @@
-/*
- * (C) Copyright 2003
- * Gerry Hamel, geh@ti.com, Texas Instruments
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-#include <common.h>
-
-#ifdef CONFIG_USB_TTY
-
-#include <circbuf.h>
-#include <devices.h>
-#include "usbtty.h"
-
-#define TTYDBG(fmt,args...) do{}while(0)
-
-#define TTYERR(fmt,args...) do{}while(0)
-
-/*
- * Buffers to hold input and output data
- */
-#define USBTTY_BUFFER_SIZE 256
-static circbuf_t usbtty_input;
-static circbuf_t usbtty_output;
-
-
-/*
- * Instance variables
- */
-static device_t usbttydev;
-static struct usb_device_instance device_instance[1];
-static struct usb_bus_instance bus_instance[1];
-static struct usb_configuration_instance config_instance[NUM_CONFIGS];
-static struct usb_interface_instance interface_instance[NUM_INTERFACES];
-static struct usb_alternate_instance alternate_instance[NUM_INTERFACES];
-static struct usb_endpoint_instance endpoint_instance[NUM_ENDPOINTS+1]; /* one extra for control endpoint */
-
-/*
- * Static allocation of urbs
- */
-#define RECV_ENDPOINT 1
-#define TX_ENDPOINT 2
-
-/*
- * Global flag
- */
-int usbtty_configured_flag = 0;
-
-
-/*
- * Serial number
- */
-static char serial_number[16];
-
-/*
- * Descriptors
- */
-static u8 wstrLang[4] = {4,USB_DT_STRING,0x9,0x4};
-static u8 wstrManufacturer[2 + 2*(sizeof(CONFIG_USBD_MANUFACTURER)-1)];
-static u8 wstrProduct[2 + 2*(sizeof(CONFIG_USBD_PRODUCT_NAME)-1)];
-static u8 wstrSerial[2 + 2*(sizeof(serial_number) - 1)];
-static u8 wstrConfiguration[2 + 2*(sizeof(CONFIG_USBD_CONFIGURATION_STR)-1)];
-static u8 wstrInterface[2 + 2*(sizeof(CONFIG_USBD_INTERFACE_STR)-1)];
-
-static struct usb_string_descriptor *usbtty_string_table[] = {
- (struct usb_string_descriptor*)wstrLang,
- (struct usb_string_descriptor*)wstrManufacturer,
- (struct usb_string_descriptor*)wstrProduct,
- (struct usb_string_descriptor*)wstrSerial,
- (struct usb_string_descriptor*)wstrConfiguration,
- (struct usb_string_descriptor*)wstrInterface
-};
-extern struct usb_string_descriptor **usb_strings; /* defined and used by omap1510_ep0.c */
-
-static struct usb_device_descriptor device_descriptor = {
- bLength: sizeof(struct usb_device_descriptor),
- bDescriptorType: USB_DT_DEVICE,
- bcdUSB: USB_BCD_VERSION,
- bDeviceClass: USBTTY_DEVICE_CLASS,
- bDeviceSubClass: USBTTY_DEVICE_SUBCLASS,
- bDeviceProtocol: USBTTY_DEVICE_PROTOCOL,
- bMaxPacketSize0: EP0_MAX_PACKET_SIZE,
- idVendor: CONFIG_USBD_VENDORID,
- idProduct: CONFIG_USBD_PRODUCTID,
- bcdDevice: USBTTY_BCD_DEVICE,
- iManufacturer: STR_MANUFACTURER,
- iProduct: STR_PRODUCT,
- iSerialNumber: STR_SERIAL,
- bNumConfigurations: NUM_CONFIGS
- };
-static struct usb_configuration_descriptor config_descriptors[NUM_CONFIGS] = {
- {
- bLength: sizeof(struct usb_configuration_descriptor),
- bDescriptorType: USB_DT_CONFIG,
- wTotalLength: (sizeof(struct usb_configuration_descriptor)*NUM_CONFIGS) +
- (sizeof(struct usb_interface_descriptor)*NUM_INTERFACES) +
- (sizeof(struct usb_endpoint_descriptor)*NUM_ENDPOINTS),
- bNumInterfaces: NUM_INTERFACES,
- bConfigurationValue: 1,
- iConfiguration: STR_CONFIG,
- bmAttributes: BMATTRIBUTE_SELF_POWERED | BMATTRIBUTE_RESERVED,
- bMaxPower: USBTTY_MAXPOWER
- },
-};
-static struct usb_interface_descriptor interface_descriptors[NUM_INTERFACES] = {
- {
- bLength: sizeof(struct usb_interface_descriptor),
- bDescriptorType: USB_DT_INTERFACE,
- bInterfaceNumber: 0,
- bAlternateSetting: 0,
- bNumEndpoints: NUM_ENDPOINTS,
- bInterfaceClass: USBTTY_INTERFACE_CLASS,
- bInterfaceSubClass: USBTTY_INTERFACE_SUBCLASS,
- bInterfaceProtocol: USBTTY_INTERFACE_PROTOCOL,
- iInterface: STR_INTERFACE
- },
-};
-static struct usb_endpoint_descriptor ep_descriptors[NUM_ENDPOINTS] = {
- {
- bLength: sizeof(struct usb_endpoint_descriptor),
- bDescriptorType: USB_DT_ENDPOINT,
- bEndpointAddress: CONFIG_USBD_SERIAL_OUT_ENDPOINT | USB_DIR_OUT,
- bmAttributes: USB_ENDPOINT_XFER_BULK,
- wMaxPacketSize: CONFIG_USBD_SERIAL_OUT_PKTSIZE,
- bInterval: 0
- },
- {
- bLength: sizeof(struct usb_endpoint_descriptor),
- bDescriptorType: USB_DT_ENDPOINT,
- bEndpointAddress: CONFIG_USBD_SERIAL_IN_ENDPOINT | USB_DIR_IN,
- bmAttributes: USB_ENDPOINT_XFER_BULK,
- wMaxPacketSize: CONFIG_USBD_SERIAL_IN_PKTSIZE,
- bInterval: 0
- },
- {
- bLength: sizeof(struct usb_endpoint_descriptor),
- bDescriptorType: USB_DT_ENDPOINT,
- bEndpointAddress: CONFIG_USBD_SERIAL_INT_ENDPOINT | USB_DIR_IN,
- bmAttributes: USB_ENDPOINT_XFER_INT,
- wMaxPacketSize: CONFIG_USBD_SERIAL_INT_PKTSIZE,
- bInterval: 0
- },
-};
-static struct usb_endpoint_descriptor *ep_descriptor_ptrs[NUM_ENDPOINTS] = {
- &(ep_descriptors[0]),
- &(ep_descriptors[1]),
- &(ep_descriptors[2]),
-};
-
-/* utility function for converting char* to wide string used by USB */
-static void str2wide (char *str, u16 * wide)
-{
- int i;
-
- for (i = 0; i < strlen (str) && str[i]; i++)
- wide[i] = (u16) str[i];
-}
-
-/*
- * Prototypes
- */
-static void usbtty_init_strings (void);
-static void usbtty_init_instances (void);
-static void usbtty_init_endpoints (void);
-
-static void usbtty_event_handler (struct usb_device_instance *device,
- usb_device_event_t event, int data);
-static int usbtty_configured (void);
-
-static int write_buffer (circbuf_t * buf);
-static int fill_buffer (circbuf_t * buf);
-
-void usbtty_poll (void);
-static void pretend_interrupts (void);
-
-
-/*
- * Test whether a character is in the RX buffer
- */
-int usbtty_tstc (void)
-{
- usbtty_poll ();
- return (usbtty_input.size > 0);
-}
-
-/*
- * Read a single byte from the usb client port. Returns 1 on success, 0
- * otherwise. When the function is succesfull, the character read is
- * written into its argument c.
- */
-int usbtty_getc (void)
-{
- char c;
-
- while (usbtty_input.size <= 0) {
- usbtty_poll ();
- }
-
- buf_pop (&usbtty_input, &c, 1);
- return c;
-}
-
-/*
- * Output a single byte to the usb client port.
- */
-void usbtty_putc (const char c)
-{
- buf_push (&usbtty_output, &c, 1);
- /* If \n, also do \r */
- if (c == '\n')
- buf_push (&usbtty_output, "\r", 1);
-
- /* Poll at end to handle new data... */
- if ((usbtty_output.size + 2) >= usbtty_output.totalsize) {
- usbtty_poll ();
- }
-}
-
-
-/* usbtty_puts() helper function for finding the next '\n' in a string */
-static int next_nl_pos (const char *s)
-{
- int i;
-
- for (i = 0; s[i] != '\0'; i++) {
- if (s[i] == '\n')
- return i;
- }
- return i;
-}
-
-/*
- * Output a string to the usb client port.
- */
-static void __usbtty_puts (const char *str, int len)
-{
- int maxlen = usbtty_output.totalsize;
- int space, n;
-
- /* break str into chunks < buffer size, if needed */
- while (len > 0) {
- space = maxlen - usbtty_output.size;
-
- /* Empty buffer here, if needed, to ensure space... */
- if (space <= 0) {
- write_buffer (&usbtty_output);
- space = maxlen - usbtty_output.size;
- if (space <= 0) {
- space = len; /* allow old data to be overwritten. */
- }
- }
-
- n = MIN (space, MIN (len, maxlen));
- buf_push (&usbtty_output, str, n);
-
- str += n;
- len -= n;
- }
-}
-
-void usbtty_puts (const char *str)
-{
- int n;
- int len = strlen (str);
-
- /* add '\r' for each '\n' */
- while (len > 0) {
- n = next_nl_pos (str);
-
- if (str[n] == '\n') {
- __usbtty_puts (str, n + 1);
- __usbtty_puts ("\r", 1);
- str += (n + 1);
- len -= (n + 1);
- } else {
- /* No \n found. All done. */
- __usbtty_puts (str, n);
- break;
- }
- }
-
- /* Poll at end to handle new data... */
- usbtty_poll ();
-}
-
-/*
- * Initialize the usb client port.
- *
- */
-int drv_usbtty_init (void)
-{
- int rc;
- char * sn;
- int snlen;
-
- if (!(sn = getenv("serial#"))) {
- sn = "000000000000";
- }
- snlen = strlen(sn);
- if (snlen > sizeof(serial_number) - 1) {
- printf ("Warning: serial number %s is too long (%d > %d)\n",
- sn, snlen, sizeof(serial_number) - 1);
- snlen = sizeof(serial_number) - 1;
- }
- memcpy (serial_number, sn, snlen);
- serial_number[snlen] = '\0';
-
- /* prepare buffers... */
- buf_init (&usbtty_input, USBTTY_BUFFER_SIZE);
- buf_init (&usbtty_output, USBTTY_BUFFER_SIZE);
-
- /* Now, set up USB controller and infrastructure */
- udc_init (); /* Basic USB initialization */
-
- usbtty_init_strings ();
- usbtty_init_instances ();
-
- udc_startup_events (device_instance); /* Enable our device, initialize udc pointers */
- udc_connect (); /* Enable pullup for host detection */
-
- usbtty_init_endpoints ();
-
- /* Device initialization */
- memset (&usbttydev, 0, sizeof (usbttydev));
-
- strcpy (usbttydev.name, "usbtty");
- usbttydev.ext = 0; /* No extensions */
- usbttydev.flags = DEV_FLAGS_INPUT | DEV_FLAGS_OUTPUT;
- usbttydev.tstc = usbtty_tstc; /* 'tstc' function */
- usbttydev.getc = usbtty_getc; /* 'getc' function */
- usbttydev.putc = usbtty_putc; /* 'putc' function */
- usbttydev.puts = usbtty_puts; /* 'puts' function */
-
- rc = device_register (&usbttydev);
-
- return (rc == 0) ? 1 : rc;
-}
-
-static void usbtty_init_strings (void)
-{
- struct usb_string_descriptor *string;
-
- string = (struct usb_string_descriptor *) wstrManufacturer;
- string->bLength = sizeof (wstrManufacturer);
- string->bDescriptorType = USB_DT_STRING;
- str2wide (CONFIG_USBD_MANUFACTURER, string->wData);
-
- string = (struct usb_string_descriptor *) wstrProduct;
- string->bLength = sizeof (wstrProduct);
- string->bDescriptorType = USB_DT_STRING;
- str2wide (CONFIG_USBD_PRODUCT_NAME, string->wData);
-
- string = (struct usb_string_descriptor *) wstrSerial;
- string->bLength = 2 + 2*strlen(serial_number);
- string->bDescriptorType = USB_DT_STRING;
- str2wide (serial_number, string->wData);
-
- string = (struct usb_string_descriptor *) wstrConfiguration;
- string->bLength = sizeof (wstrConfiguration);
- string->bDescriptorType = USB_DT_STRING;
- str2wide (CONFIG_USBD_CONFIGURATION_STR, string->wData);
-
- string = (struct usb_string_descriptor *) wstrInterface;
- string->bLength = sizeof (wstrInterface);
- string->bDescriptorType = USB_DT_STRING;
- str2wide (CONFIG_USBD_INTERFACE_STR, string->wData);
-
- /* Now, initialize the string table for ep0 handling */
- usb_strings = usbtty_string_table;
-}
-
-static void usbtty_init_instances (void)
-{
- int i;
-
- /* initialize device instance */
- memset (device_instance, 0, sizeof (struct usb_device_instance));
- device_instance->device_state = STATE_INIT;
- device_instance->device_descriptor = &device_descriptor;
- device_instance->event = usbtty_event_handler;
- device_instance->bus = bus_instance;
- device_instance->configurations = NUM_CONFIGS;
- device_instance->configuration_instance_array = config_instance;
-
- /* initialize bus instance */
- memset (bus_instance, 0, sizeof (struct usb_bus_instance));
- bus_instance->device = device_instance;
- bus_instance->endpoint_array = endpoint_instance;
- bus_instance->max_endpoints = 1;
- bus_instance->maxpacketsize = 64;
- bus_instance->serial_number_str = serial_number;
-
- /* configuration instance */
- memset (config_instance, 0,
- sizeof (struct usb_configuration_instance));
- config_instance->interfaces = NUM_INTERFACES;
- config_instance->configuration_descriptor = config_descriptors;
- config_instance->interface_instance_array = interface_instance;
-
- /* interface instance */
- memset (interface_instance, 0,
- sizeof (struct usb_interface_instance));
- interface_instance->alternates = 1;
- interface_instance->alternates_instance_array = alternate_instance;
-
- /* alternates instance */
- memset (alternate_instance, 0,
- sizeof (struct usb_alternate_instance));
- alternate_instance->interface_descriptor = interface_descriptors;
- alternate_instance->endpoints = NUM_ENDPOINTS;
- alternate_instance->endpoints_descriptor_array = ep_descriptor_ptrs;
-
- /* endpoint instances */
- memset (&endpoint_instance[0], 0,
- sizeof (struct usb_endpoint_instance));
- endpoint_instance[0].endpoint_address = 0;
- endpoint_instance[0].rcv_packetSize = EP0_MAX_PACKET_SIZE;
- endpoint_instance[0].rcv_attributes = USB_ENDPOINT_XFER_CONTROL;
- endpoint_instance[0].tx_packetSize = EP0_MAX_PACKET_SIZE;
- endpoint_instance[0].tx_attributes = USB_ENDPOINT_XFER_CONTROL;
- udc_setup_ep (device_instance, 0, &endpoint_instance[0]);
-
- for (i = 1; i <= NUM_ENDPOINTS; i++) {
- memset (&endpoint_instance[i], 0,
- sizeof (struct usb_endpoint_instance));
-
- endpoint_instance[i].endpoint_address =
- ep_descriptors[i - 1].bEndpointAddress;
-
- endpoint_instance[i].rcv_packetSize =
- ep_descriptors[i - 1].wMaxPacketSize;
- endpoint_instance[i].rcv_attributes =
- ep_descriptors[i - 1].bmAttributes;
-
- endpoint_instance[i].tx_packetSize =
- ep_descriptors[i - 1].wMaxPacketSize;
- endpoint_instance[i].tx_attributes =
- ep_descriptors[i - 1].bmAttributes;
-
- urb_link_init (&endpoint_instance[i].rcv);
- urb_link_init (&endpoint_instance[i].rdy);
- urb_link_init (&endpoint_instance[i].tx);
- urb_link_init (&endpoint_instance[i].done);
-
- if (endpoint_instance[i].endpoint_address & USB_DIR_IN)
- endpoint_instance[i].tx_urb =
- usbd_alloc_urb (device_instance,
- &endpoint_instance[i]);
- else
- endpoint_instance[i].rcv_urb =
- usbd_alloc_urb (device_instance,
- &endpoint_instance[i]);
- }
-}
-
-static void usbtty_init_endpoints (void)
-{
- int i;
-
- bus_instance->max_endpoints = NUM_ENDPOINTS + 1;
- for (i = 0; i <= NUM_ENDPOINTS; i++) {
- udc_setup_ep (device_instance, i, &endpoint_instance[i]);
- }
-}
-
-
-/*********************************************************************************/
-
-static struct urb *next_urb (struct usb_device_instance *device,
- struct usb_endpoint_instance *endpoint)
-{
- struct urb *current_urb = NULL;
- int space;
-
- /* If there's a queue, then we should add to the last urb */
- if (!endpoint->tx_queue) {
- current_urb = endpoint->tx_urb;
- } else {
- /* Last urb from tx chain */
- current_urb =
- p2surround (struct urb, link, endpoint->tx.prev);
- }
-
- /* Make sure this one has enough room */
- space = current_urb->buffer_length - current_urb->actual_length;
- if (space > 0) {
- return current_urb;
- } else { /* No space here */
- /* First look at done list */
- current_urb = first_urb_detached (&endpoint->done);
- if (!current_urb) {
- current_urb = usbd_alloc_urb (device, endpoint);
- }
-
- urb_append (&endpoint->tx, current_urb);
- endpoint->tx_queue++;
- }
- return current_urb;
-}
-
-static int write_buffer (circbuf_t * buf)
-{
- if (!usbtty_configured ()) {
- return 0;
- }
-
- if (buf->size) {
-
- struct usb_endpoint_instance *endpoint =
- &endpoint_instance[TX_ENDPOINT];
- struct urb *current_urb = NULL;
- char *dest;
-
- int space_avail;
- int popnum, popped;
- int total = 0;
-
- /* Break buffer into urb sized pieces, and link each to the endpoint */
- while (buf->size > 0) {
- current_urb = next_urb (device_instance, endpoint);
- if (!current_urb) {
- TTYERR ("current_urb is NULL, buf->size %d\n",
- buf->size);
- return total;
- }
-
- dest = current_urb->buffer +
- current_urb->actual_length;
-
- space_avail =
- current_urb->buffer_length -
- current_urb->actual_length;
- popnum = MIN (space_avail, buf->size);
- if (popnum == 0)
- break;
-
- popped = buf_pop (buf, dest, popnum);
- if (popped == 0)
- break;
- current_urb->actual_length += popped;
- total += popped;
-
- /* If endpoint->last == 0, then transfers have not started on this endpoint */
- if (endpoint->last == 0) {
- udc_endpoint_write (endpoint);
- }
-
- } /* end while */
- return total;
- } /* end if tx_urb */
-
- return 0;
-}
-
-static int fill_buffer (circbuf_t * buf)
-{
- struct usb_endpoint_instance *endpoint =
- &endpoint_instance[RECV_ENDPOINT];
-
- if (endpoint->rcv_urb && endpoint->rcv_urb->actual_length) {
- unsigned int nb = endpoint->rcv_urb->actual_length;
- char *src = (char *) endpoint->rcv_urb->buffer;
-
- buf_push (buf, src, nb);
- endpoint->rcv_urb->actual_length = 0;
-
- return nb;
- }
-
- return 0;
-}
-
-static int usbtty_configured (void)
-{
- return usbtty_configured_flag;
-}
-
-/*********************************************************************************/
-
-static void usbtty_event_handler (struct usb_device_instance *device,
- usb_device_event_t event, int data)
-{
- switch (event) {
- case DEVICE_RESET:
- case DEVICE_BUS_INACTIVE:
- usbtty_configured_flag = 0;
- break;
- case DEVICE_CONFIGURED:
- usbtty_configured_flag = 1;
- break;
-
- case DEVICE_ADDRESS_ASSIGNED:
- usbtty_init_endpoints ();
-
- default:
- break;
- }
-}
-
-/*********************************************************************************/
-
-
-/*
- * Since interrupt handling has not yet been implemented, we use this function
- * to handle polling. This is called by the tstc,getc,putc,puts routines to
- * update the USB state.
- */
-void usbtty_poll (void)
-{
- /* New interrupts? */
- pretend_interrupts ();
-
- /* Write any output data to host buffer (do this before checking interrupts to avoid missing one) */
- if (usbtty_configured ()) {
- write_buffer (&usbtty_output);
- }
-
- /* New interrupts? */
- pretend_interrupts ();
-
- /* Check for new data from host.. (do this after checking interrupts to get latest data) */
- if (usbtty_configured ()) {
- fill_buffer (&usbtty_input);
- }
-
- /* New interrupts? */
- pretend_interrupts ();
-}
-
-static void pretend_interrupts (void)
-{
- /* Loop while we have interrupts.
- * If we don't do this, the input chain
- * polling delay is likely to miss
- * host requests.
- */
- while (inw (UDC_IRQ_SRC) & ~UDC_SOF_Flg) {
- /* Handle any new IRQs */
- omap1510_udc_irq ();
- omap1510_udc_noniso_irq ();
- }
-}
-#endif
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