2 * bf6xx_sport - Analog Devices BF6XX SPORT driver
4 * Copyright (c) 2012 Analog Devices Inc.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #ifndef _BF6XX_SPORT_H_
21 #define _BF6XX_SPORT_H_
23 #include <linux/platform_device.h>
24 #include <asm/bfin_sport3.h>
27 struct platform_device *pdev;
28 const unsigned short *pin_req;
29 struct sport_register *tx_regs;
30 struct sport_register *rx_regs;
36 void (*tx_callback)(void *data);
38 void (*rx_callback)(void *data);
41 struct dmasg *tx_desc;
42 struct dmasg *rx_desc;
43 unsigned int tx_desc_size;
44 unsigned int rx_desc_size;
45 unsigned char *tx_buf;
46 unsigned char *rx_buf;
47 unsigned int tx_fragsize;
48 unsigned int rx_fragsize;
49 unsigned int tx_frags;
50 unsigned int rx_frags;
59 struct sport_device *sport_create(struct platform_device *pdev);
60 void sport_delete(struct sport_device *sport);
61 int sport_set_tx_params(struct sport_device *sport,
62 struct sport_params *params);
63 int sport_set_rx_params(struct sport_device *sport,
64 struct sport_params *params);
65 void sport_tx_start(struct sport_device *sport);
66 void sport_rx_start(struct sport_device *sport);
67 void sport_tx_stop(struct sport_device *sport);
68 void sport_rx_stop(struct sport_device *sport);
69 void sport_set_tx_callback(struct sport_device *sport,
70 void (*tx_callback)(void *), void *tx_data);
71 void sport_set_rx_callback(struct sport_device *sport,
72 void (*rx_callback)(void *), void *rx_data);
73 int sport_config_tx_dma(struct sport_device *sport, void *buf,
74 int fragcount, size_t fragsize);
75 int sport_config_rx_dma(struct sport_device *sport, void *buf,
76 int fragcount, size_t fragsize);
77 unsigned long sport_curr_offset_tx(struct sport_device *sport);
78 unsigned long sport_curr_offset_rx(struct sport_device *sport);