New cleaned-up (and then messed up again) SSC code

Better layering separation


git-svn-id: https://svn.openpcd.org:2342/trunk@434 6dc7ffe9-61d6-0310-9af1-9938baff3ed1

1 files changed, 0 insertions, 105 deletions

diff --git a/openpicc/application/ssc_picc.h b/openpicc/application/ssc_picc.h
deleted file mode 100644
index 3b6182a..0000000
--- a/openpicc/application/ssc_picc.h
+++ /dev/null
@@ -1,105 +0,0 @@
-#ifndef _SSC_H
-#define _SSC_H
-
-#include "queue.h"
-#include "iso14443_layer3a.h"
-
-extern void ssc_rx_start(void);
-extern void ssc_rx_stop(void);
-
-/* Rx/Tx initialization separate, since Tx disables PWM output ! */
-extern void ssc_tx_init(void);
-extern void ssc_rx_init(void);
-
-extern void ssc_fini(void);
-extern void ssc_rx_stop(void);
-extern void ssc_rx_unthrottle(void);
-extern void __ramfunc ssc_rx_stop_frame_ended(void);
-
-
-enum ssc_mode {
-	SSC_MODE_NONE,
-	SSC_MODE_14443A_SHORT,
-	SSC_MODE_14443A_STANDARD,
-	SSC_MODE_14443A,
-	SSC_MODE_14443B,
-	SSC_MODE_EDGE_ONE_SHOT,
-	SSC_MODE_CONTINUOUS,
-};
-
-extern void ssc_rx_mode_set(enum ssc_mode ssc_mode);
-
-typedef void (*ssc_irq_ext_t)(u_int32_t ssc_sr, enum ssc_mode ssc_mode, u_int8_t* samples);
-
-/* A fast method to extend the IRQ handler from the higher level code, e.g. to prepare
- * an ATQA answer to REQA or WUPA in iso14443_layer3a. Normally I'd use the FreeRTOS 
- * primitives to wake the task and then do everything in task context, but the delay
- * from SSC IRQ to the task returning from xQueueReceive is around 165us. Additionally to the
- * delay from end of communication to SSC IRQ which is around 50us. This results in way more delay
- * than acceptable for the synchronous responses (around 87us).*/ 
-extern ssc_irq_ext_t ssc_set_irq_extension(ssc_irq_ext_t ext_handler);
-
-/* These are various SSC performance metrics that can be queried */
-typedef enum {
-	OVERFLOWS,     /* Overflows (e.g. no free buffer when reloading DMA controller) */
-	BUFFER_ERRORS, /* Internal buffer management errors */
-	FREE_BUFFERS,  /* Free RX buffers */
-	LATE_FRAMES,   /* Frames that were not ready to be sent when the FDT passed; e.g. sent too late */
-	SSC_ERRORS,    /* General error count, e.g. OVERFLOWS + BUFFER_ERRORS */
-} ssc_metric;
-extern int ssc_get_metric(ssc_metric metric);
-
-#define SSC_RX_BUFFER_SIZE 2048
-#define SSC_DMA_BUFFER_COUNT 4
-
-#if SSC_RX_BUFFER_SIZE < ISO14443A_MAX_RX_FRAME_SIZE_IN_BITS
-#undef SSC_RX_BUFFER_SIZE
-#define SSC_RX_BUFFER_SIZE ISO14443A_MAX_RX_FRAME_SIZE_IN_BITS
-#endif
-
-typedef enum {
-	FREE=0,    /* Buffer is free */
-	PENDING,   /* Buffer has been given to the DMA controller and is currently being filled */
-	FULL,      /* DMA controller signalled that the buffer is full */
-	PROCESSING,/* The buffer is currently processed by the consumer (e.g. decoder) */
-	PREFILLED, /* The buffer has been prefilled for later usage (only used for TX) */
-} ssc_dma_buffer_state_t;
-
-typedef struct {
-	enum ssc_mode mode;
-	u_int16_t transfersize_ssc;
-	u_int16_t transfersize_pdc;
-	u_int16_t transfers;
-} ssc_mode_def;
-
-typedef struct {
-	volatile ssc_dma_buffer_state_t state;
-	u_int32_t len_transfers;  /* Length of the content, in transfers */
-	const ssc_mode_def *reception_mode; /* Pointer to the SSC mode definition that the buffer has been loaded for (affects element size and count) */
-	u_int8_t data[SSC_RX_BUFFER_SIZE];
-} ssc_dma_rx_buffer_t;
-
-extern xQueueHandle ssc_rx_queue;
-
-/* in bytes, used for the sample buffer that holds the subcarrier modulation data at fc/8 = 1695 MHz */
-#define SSC_TX_BUFFER_SIZE ((MAXIMUM_FRAME_SIZE*( (8+1)*2 ) ) + 2 + 2)
-
-typedef struct {
-	volatile ssc_dma_buffer_state_t state;
-	u_int32_t len;  /* Length of the content */
-	void *source; /* Source pointer for a prefilled buffer; set to NULL if not used */
-	u_int8_t data[SSC_TX_BUFFER_SIZE];
-} ssc_dma_tx_buffer_t;
-
-/* Declare one TX buffer. This means that only one buffer can ever be pending for sending. That's because
- * this buffer must be huge (one frame of 256 bytes of subcarrier modulation data at  1695 MHz sample
- * rate is approx 4k bytes). */
-extern ssc_dma_tx_buffer_t ssc_tx_buffer;
-
-extern void ssc_tx_start(ssc_dma_tx_buffer_t *buf);
-extern volatile u_int32_t ssc_tx_fiq_fdt_cdiv;
-extern volatile u_int32_t ssc_tx_fiq_fdt_ssc;
-
-extern void ssc_set_data_gate(int enable);
-
-#endif