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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 | ||
e73a9891 KM |
20 | #include <linux/interrupt.h> |
21 | #include <linux/sh_dma.h> | |
22 | #include <asm/dma.h> | |
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23 | #include "pipe.h" |
24 | ||
e73a9891 KM |
25 | #define DMA_ADDR_INVALID (~(dma_addr_t)0) |
26 | ||
d3af90a5 | 27 | struct usbhs_fifo { |
e73a9891 | 28 | char *name; |
d3af90a5 KM |
29 | u32 port; /* xFIFO */ |
30 | u32 sel; /* xFIFOSEL */ | |
31 | u32 ctr; /* xFIFOCTR */ | |
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32 | |
33 | struct usbhs_pipe *pipe; | |
e73a9891 KM |
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; | |
d3af90a5 KM |
41 | }; |
42 | ||
43 | struct usbhs_fifo_info { | |
44 | struct usbhs_fifo cfifo; | |
e73a9891 KM |
45 | struct usbhs_fifo d0fifo; |
46 | struct usbhs_fifo d1fifo; | |
d3af90a5 KM |
47 | }; |
48 | ||
dad67397 | 49 | struct usbhs_pkt_handle; |
4bd04811 | 50 | struct usbhs_pkt { |
6acb95d4 | 51 | struct list_head node; |
4bd04811 | 52 | struct usbhs_pipe *pipe; |
dad67397 | 53 | struct usbhs_pkt_handle *handler; |
e73a9891 | 54 | dma_addr_t dma; |
4bd04811 KM |
55 | void *buf; |
56 | int length; | |
e73a9891 | 57 | int trans; |
4bd04811 | 58 | int actual; |
659d4954 | 59 | int zero; |
4bd04811 | 60 | }; |
e8d548d5 | 61 | |
dad67397 | 62 | struct usbhs_pkt_handle { |
97664a20 KM |
63 | int (*prepare)(struct usbhs_pkt *pkt, int *is_done); |
64 | int (*try_run)(struct usbhs_pkt *pkt, int *is_done); | |
e73a9891 | 65 | int (*dma_done)(struct usbhs_pkt *pkt, int *is_done); |
dad67397 KM |
66 | }; |
67 | ||
e8d548d5 KM |
68 | /* |
69 | * fifo | |
70 | */ | |
d3af90a5 KM |
71 | int usbhs_fifo_probe(struct usbhs_priv *priv); |
72 | void usbhs_fifo_remove(struct usbhs_priv *priv); | |
dad67397 KM |
73 | void usbhs_fifo_init(struct usbhs_priv *priv); |
74 | void usbhs_fifo_quit(struct usbhs_priv *priv); | |
e8d548d5 | 75 | |
4bd04811 KM |
76 | /* |
77 | * packet info | |
78 | */ | |
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79 | enum { |
80 | USBHSF_PKT_PREPARE, | |
81 | USBHSF_PKT_TRY_RUN, | |
e73a9891 | 82 | USBHSF_PKT_DMA_DONE, |
97664a20 KM |
83 | }; |
84 | ||
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85 | extern struct usbhs_pkt_handle usbhs_fifo_pio_push_handler; |
86 | extern struct usbhs_pkt_handle usbhs_fifo_pio_pop_handler; | |
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87 | extern struct usbhs_pkt_handle usbhs_ctrl_stage_end_handler; |
88 | ||
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89 | extern struct usbhs_pkt_handle usbhs_fifo_dma_push_handler; |
90 | extern struct usbhs_pkt_handle usbhs_fifo_dma_pop_handler; | |
91 | ||
92 | ||
6acb95d4 | 93 | void usbhs_pkt_init(struct usbhs_pkt *pkt); |
659d4954 | 94 | void usbhs_pkt_push(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt, |
dad67397 | 95 | struct usbhs_pkt_handle *handler, |
659d4954 | 96 | void *buf, int len, int zero); |
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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); | |
4bd04811 | 99 | |
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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) | |
e73a9891 | 102 | #define usbhs_pkt_dmadone(p) __usbhs_pkt_handler(p, USBHSF_PKT_DMA_DONE) |
dad67397 | 103 | |
e8d548d5 | 104 | #endif /* RENESAS_USB_FIFO_H */ |