diff options
Diffstat (limited to 'drivers/usb/renesas_usbhs/fifo.h')
-rw-r--r-- | drivers/usb/renesas_usbhs/fifo.h | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/drivers/usb/renesas_usbhs/fifo.h b/drivers/usb/renesas_usbhs/fifo.h new file mode 100644 index 000000000000..ed6d8e56c13c --- /dev/null +++ b/drivers/usb/renesas_usbhs/fifo.h | |||
@@ -0,0 +1,104 @@ | |||
1 | /* | ||
2 | * Renesas USB driver | ||
3 | * | ||
4 | * Copyright (C) 2011 Renesas Solutions Corp. | ||
5 | * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | ||
6 | * | ||
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. | ||
11 | * | ||
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 | ||
15 | * | ||
16 | */ | ||
17 | #ifndef RENESAS_USB_FIFO_H | ||
18 | #define RENESAS_USB_FIFO_H | ||
19 | |||
20 | #include <linux/interrupt.h> | ||
21 | #include <linux/sh_dma.h> | ||
22 | #include <asm/dma.h> | ||
23 | #include "pipe.h" | ||
24 | |||
25 | #define DMA_ADDR_INVALID (~(dma_addr_t)0) | ||
26 | |||
27 | struct usbhs_fifo { | ||
28 | char *name; | ||
29 | u32 port; /* xFIFO */ | ||
30 | u32 sel; /* xFIFOSEL */ | ||
31 | u32 ctr; /* xFIFOCTR */ | ||
32 | |||
33 | struct usbhs_pipe *pipe; | ||
34 | struct tasklet_struct tasklet; | ||
35 | |||
36 | struct dma_chan *tx_chan; | ||
37 | struct dma_chan *rx_chan; | ||
38 | |||
39 | struct sh_dmae_slave tx_slave; | ||
40 | struct sh_dmae_slave rx_slave; | ||
41 | }; | ||
42 | |||
43 | struct usbhs_fifo_info { | ||
44 | struct usbhs_fifo cfifo; | ||
45 | struct usbhs_fifo d0fifo; | ||
46 | struct usbhs_fifo d1fifo; | ||
47 | }; | ||
48 | |||
49 | struct usbhs_pkt_handle; | ||
50 | struct usbhs_pkt { | ||
51 | struct list_head node; | ||
52 | struct usbhs_pipe *pipe; | ||
53 | struct usbhs_pkt_handle *handler; | ||
54 | dma_addr_t dma; | ||
55 | void *buf; | ||
56 | int length; | ||
57 | int trans; | ||
58 | int actual; | ||
59 | int zero; | ||
60 | }; | ||
61 | |||
62 | struct usbhs_pkt_handle { | ||
63 | int (*prepare)(struct usbhs_pkt *pkt, int *is_done); | ||
64 | int (*try_run)(struct usbhs_pkt *pkt, int *is_done); | ||
65 | int (*dma_done)(struct usbhs_pkt *pkt, int *is_done); | ||
66 | }; | ||
67 | |||
68 | /* | ||
69 | * fifo | ||
70 | */ | ||
71 | int usbhs_fifo_probe(struct usbhs_priv *priv); | ||
72 | void usbhs_fifo_remove(struct usbhs_priv *priv); | ||
73 | void usbhs_fifo_init(struct usbhs_priv *priv); | ||
74 | void usbhs_fifo_quit(struct usbhs_priv *priv); | ||
75 | |||
76 | /* | ||
77 | * packet info | ||
78 | */ | ||
79 | enum { | ||
80 | USBHSF_PKT_PREPARE, | ||
81 | USBHSF_PKT_TRY_RUN, | ||
82 | USBHSF_PKT_DMA_DONE, | ||
83 | }; | ||
84 | |||
85 | extern struct usbhs_pkt_handle usbhs_fifo_pio_push_handler; | ||
86 | extern struct usbhs_pkt_handle usbhs_fifo_pio_pop_handler; | ||
87 | extern struct usbhs_pkt_handle usbhs_ctrl_stage_end_handler; | ||
88 | |||
89 | extern struct usbhs_pkt_handle usbhs_fifo_dma_push_handler; | ||
90 | extern struct usbhs_pkt_handle usbhs_fifo_dma_pop_handler; | ||
91 | |||
92 | |||
93 | void usbhs_pkt_init(struct usbhs_pkt *pkt); | ||
94 | void usbhs_pkt_push(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt, | ||
95 | struct usbhs_pkt_handle *handler, | ||
96 | void *buf, int len, int zero); | ||
97 | struct usbhs_pkt *usbhs_pkt_pop(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt); | ||
98 | int __usbhs_pkt_handler(struct usbhs_pipe *pipe, int type); | ||
99 | |||
100 | #define usbhs_pkt_start(p) __usbhs_pkt_handler(p, USBHSF_PKT_PREPARE) | ||
101 | #define usbhs_pkt_run(p) __usbhs_pkt_handler(p, USBHSF_PKT_TRY_RUN) | ||
102 | #define usbhs_pkt_dmadone(p) __usbhs_pkt_handler(p, USBHSF_PKT_DMA_DONE) | ||
103 | |||
104 | #endif /* RENESAS_USB_FIFO_H */ | ||