migrate from req_ctx to msgb

We now generalize the USB communiction and abandon the 'req_ctx'
structure inherited from openpcd.  Instead we use the libosmocore 'msgb'
structure to handle incoming and outgoing USB tranfers.  We also use
linuxlist-based msgb-queues for each endpoint.
This commit is contained in:
Harald Welte
2017-05-07 16:14:33 +02:00
parent eb81d23a56
commit 8e7fca3255
18 changed files with 494 additions and 382 deletions

View File

@@ -10,7 +10,8 @@ enum card_io {
CARD_IO_CLK,
};
struct card_handle *card_emu_init(uint8_t slot_num, uint8_t tc_chan, uint8_t uart_chan);
struct card_handle *card_emu_init(uint8_t slot_num, uint8_t tc_chan, uint8_t uart_chan,
uint8_t in_ep, uint8_t irq_ep);
/* process a single byte received from the reader */
void card_emu_process_rx_byte(struct card_handle *ch, uint8_t byte);
@@ -25,7 +26,6 @@ void card_emu_io_statechg(struct card_handle *ch, enum card_io io, int active);
int card_emu_set_atr(struct card_handle *ch, const uint8_t *atr, uint8_t len);
struct llist_head *card_emu_get_uart_tx_queue(struct card_handle *ch);
struct llist_head *card_emu_get_usb_tx_queue(struct card_handle *ch);
void card_emu_have_new_uart_tx(struct card_handle *ch);
void card_emu_report_status(struct card_handle *ch);

View File

@@ -113,8 +113,4 @@ extern void mode_cardemu_usart1_irq(void);
void Timer_Init( void );
void TC0_Counter_Reset( void );
struct llist_head;
int usb_refill_to_host(struct llist_head *queue, uint32_t ep);
int usb_refill_from_host(struct llist_head *queue, int ep);
#endif /* SIMTRACE_H */

View File

@@ -0,0 +1,25 @@
#pragma once
#include <stdlib.h>
#include <stdarg.h>
/* minimalistic emulation of core talloc API functions used by msgb.c */
#define __TALLOC_STRING_LINE1__(s) #s
#define __TALLOC_STRING_LINE2__(s) __TALLOC_STRING_LINE1__(s)
#define __TALLOC_STRING_LINE3__ __TALLOC_STRING_LINE2__(__LINE__)
#define __location__ __FILE__ ":" __TALLOC_STRING_LINE3__
#define talloc_zero(ctx, type) (type *)_talloc_zero(ctx, sizeof(type), #type)
#define talloc_zero_size(ctx, size) _talloc_zero(ctx, size, __location__)
void *_talloc_zero(const void *ctx, size_t size, const char *name);
#define talloc_free(ctx) _talloc_free(ctx, __location__)
int _talloc_free(void *ptr, const char *location);
/* Unsupported! */
#define talloc_size(ctx, size) talloc_named_const(ctx, size, __location__)
void *talloc_named_const(const void *context, size_t size, const char *name);
void talloc_set_name_const(const void *ptr, const char *name);
char *talloc_strdup(const void *t, const char *p);
void *talloc_pool(const void *context, size_t size);

View File

@@ -0,0 +1,28 @@
#pragma once
#include "osmocom/core/linuxlist.h"
#include "osmocom/core/msgb.h"
/* buffered USB endpoint (with queue of msgb) */
struct usb_buffered_ep {
/* endpoint number */
uint8_t ep;
/* OUT endpoint (1) or IN/IRQ (0)? */
uint8_t out_from_host;
/* currently any transfer in progress? */
volatile uint32_t in_progress;
/* Tx queue (IN) / Rx queue (OUT) */
struct llist_head queue;
};
struct msgb *usb_buf_alloc(uint8_t ep);
void usb_buf_free(struct msgb *msg);
int usb_buf_submit(struct msgb *msg);
struct llist_head *usb_get_queue(uint8_t ep);
int usb_drain_queue(uint8_t ep);
void usb_buf_init(void);
struct usb_buffered_ep *usb_get_buf_ep(uint8_t ep);
int usb_refill_to_host(uint8_t ep);
int usb_refill_from_host(uint8_t ep);