PM / sleep: Asynchronous threads for suspend_noirq
[linux/fpc-iii.git] / drivers / usb / renesas_usbhs / fifo.h
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1 /*
2 * Renesas USB driver
4 * Copyright (C) 2011 Renesas Solutions Corp.
5 * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
7 * This program is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 * GNU General Public License for more details.
12 * You should have received a copy of the GNU General Public License
13 * along with this program; if not, write to the Free Software
14 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
17 #ifndef RENESAS_USB_FIFO_H
18 #define RENESAS_USB_FIFO_H
20 #include <linux/interrupt.h>
21 #include <linux/sh_dma.h>
22 #include <linux/workqueue.h>
23 #include <asm/dma.h>
24 #include "pipe.h"
26 struct usbhs_fifo {
27 char *name;
28 u32 port; /* xFIFO */
29 u32 sel; /* xFIFOSEL */
30 u32 ctr; /* xFIFOCTR */
32 struct usbhs_pipe *pipe;
34 struct dma_chan *tx_chan;
35 struct dma_chan *rx_chan;
37 struct sh_dmae_slave tx_slave;
38 struct sh_dmae_slave rx_slave;
41 struct usbhs_fifo_info {
42 struct usbhs_fifo cfifo;
43 struct usbhs_fifo d0fifo;
44 struct usbhs_fifo d1fifo;
47 struct usbhs_pkt_handle;
48 struct usbhs_pkt {
49 struct list_head node;
50 struct usbhs_pipe *pipe;
51 struct usbhs_pkt_handle *handler;
52 void (*done)(struct usbhs_priv *priv,
53 struct usbhs_pkt *pkt);
54 struct work_struct work;
55 dma_addr_t dma;
56 void *buf;
57 int length;
58 int trans;
59 int actual;
60 int zero;
61 int sequence;
64 struct usbhs_pkt_handle {
65 int (*prepare)(struct usbhs_pkt *pkt, int *is_done);
66 int (*try_run)(struct usbhs_pkt *pkt, int *is_done);
67 int (*dma_done)(struct usbhs_pkt *pkt, int *is_done);
71 * fifo
73 int usbhs_fifo_probe(struct usbhs_priv *priv);
74 void usbhs_fifo_remove(struct usbhs_priv *priv);
75 void usbhs_fifo_init(struct usbhs_priv *priv);
76 void usbhs_fifo_quit(struct usbhs_priv *priv);
79 * packet info
81 extern struct usbhs_pkt_handle usbhs_fifo_pio_push_handler;
82 extern struct usbhs_pkt_handle usbhs_fifo_pio_pop_handler;
83 extern struct usbhs_pkt_handle usbhs_ctrl_stage_end_handler;
85 extern struct usbhs_pkt_handle usbhs_fifo_dma_push_handler;
86 extern struct usbhs_pkt_handle usbhs_fifo_dma_pop_handler;
88 extern struct usbhs_pkt_handle usbhs_dcp_status_stage_in_handler;
89 extern struct usbhs_pkt_handle usbhs_dcp_status_stage_out_handler;
91 extern struct usbhs_pkt_handle usbhs_dcp_data_stage_in_handler;
92 extern struct usbhs_pkt_handle usbhs_dcp_data_stage_out_handler;
94 void usbhs_pkt_init(struct usbhs_pkt *pkt);
95 void usbhs_pkt_push(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt,
96 void (*done)(struct usbhs_priv *priv,
97 struct usbhs_pkt *pkt),
98 void *buf, int len, int zero, int sequence);
99 struct usbhs_pkt *usbhs_pkt_pop(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt);
100 void usbhs_pkt_start(struct usbhs_pipe *pipe);
102 #endif /* RENESAS_USB_FIFO_H */