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5fd54ace | 1 | // SPDX-License-Identifier: GPL-1.0+ |
e8d548d5 KM |
2 | /* |
3 | * Renesas USB driver | |
4 | * | |
5 | * Copyright (C) 2011 Renesas Solutions Corp. | |
6 | * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this program; if not, write to the Free Software | |
15 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
16 | * | |
17 | */ | |
18 | #ifndef RENESAS_USB_FIFO_H | |
19 | #define RENESAS_USB_FIFO_H | |
20 | ||
e73a9891 KM |
21 | #include <linux/interrupt.h> |
22 | #include <linux/sh_dma.h> | |
6e4b74e4 | 23 | #include <linux/workqueue.h> |
e73a9891 | 24 | #include <asm/dma.h> |
4bd04811 KM |
25 | #include "pipe.h" |
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 | |
35 | struct dma_chan *tx_chan; | |
36 | struct dma_chan *rx_chan; | |
37 | ||
38 | struct sh_dmae_slave tx_slave; | |
39 | struct sh_dmae_slave rx_slave; | |
d3af90a5 KM |
40 | }; |
41 | ||
d3cf6a4b | 42 | #define USBHS_MAX_NUM_DFIFO 4 |
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43 | struct usbhs_fifo_info { |
44 | struct usbhs_fifo cfifo; | |
c907e423 | 45 | struct usbhs_fifo dfifo[USBHS_MAX_NUM_DFIFO]; |
d3af90a5 | 46 | }; |
3a2634a5 | 47 | #define usbhsf_get_dnfifo(p, n) (&((p)->fifo_info.dfifo[n])) |
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48 | #define usbhs_for_each_dfifo(priv, dfifo, i) \ |
49 | for ((i) = 0; \ | |
50 | ((i) < USBHS_MAX_NUM_DFIFO) && \ | |
51 | ((dfifo) = usbhsf_get_dnfifo(priv, (i))); \ | |
52 | (i)++) | |
d3af90a5 | 53 | |
dad67397 | 54 | struct usbhs_pkt_handle; |
4bd04811 | 55 | struct usbhs_pkt { |
6acb95d4 | 56 | struct list_head node; |
4bd04811 | 57 | struct usbhs_pipe *pipe; |
fcb42e23 | 58 | const struct usbhs_pkt_handle *handler; |
b331872b KM |
59 | void (*done)(struct usbhs_priv *priv, |
60 | struct usbhs_pkt *pkt); | |
6e4b74e4 | 61 | struct work_struct work; |
e73a9891 | 62 | dma_addr_t dma; |
ab330cf3 | 63 | dma_cookie_t cookie; |
4bd04811 KM |
64 | void *buf; |
65 | int length; | |
e73a9891 | 66 | int trans; |
4bd04811 | 67 | int actual; |
659d4954 | 68 | int zero; |
3edeee38 | 69 | int sequence; |
4bd04811 | 70 | }; |
e8d548d5 | 71 | |
dad67397 | 72 | struct usbhs_pkt_handle { |
97664a20 KM |
73 | int (*prepare)(struct usbhs_pkt *pkt, int *is_done); |
74 | int (*try_run)(struct usbhs_pkt *pkt, int *is_done); | |
e73a9891 | 75 | int (*dma_done)(struct usbhs_pkt *pkt, int *is_done); |
dad67397 KM |
76 | }; |
77 | ||
e8d548d5 KM |
78 | /* |
79 | * fifo | |
80 | */ | |
d3af90a5 KM |
81 | int usbhs_fifo_probe(struct usbhs_priv *priv); |
82 | void usbhs_fifo_remove(struct usbhs_priv *priv); | |
dad67397 KM |
83 | void usbhs_fifo_init(struct usbhs_priv *priv); |
84 | void usbhs_fifo_quit(struct usbhs_priv *priv); | |
cdeb7943 | 85 | void usbhs_fifo_clear_dcp(struct usbhs_pipe *pipe); |
e8d548d5 | 86 | |
4bd04811 KM |
87 | /* |
88 | * packet info | |
89 | */ | |
fcb42e23 JL |
90 | extern const struct usbhs_pkt_handle usbhs_fifo_pio_push_handler; |
91 | extern const struct usbhs_pkt_handle usbhs_fifo_pio_pop_handler; | |
92 | extern const struct usbhs_pkt_handle usbhs_ctrl_stage_end_handler; | |
dad67397 | 93 | |
fcb42e23 JL |
94 | extern const struct usbhs_pkt_handle usbhs_fifo_dma_push_handler; |
95 | extern const struct usbhs_pkt_handle usbhs_fifo_dma_pop_handler; | |
e73a9891 | 96 | |
fcb42e23 JL |
97 | extern const struct usbhs_pkt_handle usbhs_dcp_status_stage_in_handler; |
98 | extern const struct usbhs_pkt_handle usbhs_dcp_status_stage_out_handler; | |
9e74d601 | 99 | |
fcb42e23 JL |
100 | extern const struct usbhs_pkt_handle usbhs_dcp_data_stage_in_handler; |
101 | extern const struct usbhs_pkt_handle usbhs_dcp_data_stage_out_handler; | |
e73a9891 | 102 | |
6acb95d4 | 103 | void usbhs_pkt_init(struct usbhs_pkt *pkt); |
659d4954 | 104 | void usbhs_pkt_push(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt, |
b331872b KM |
105 | void (*done)(struct usbhs_priv *priv, |
106 | struct usbhs_pkt *pkt), | |
3edeee38 | 107 | void *buf, int len, int zero, int sequence); |
97664a20 | 108 | struct usbhs_pkt *usbhs_pkt_pop(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt); |
51b8a021 | 109 | void usbhs_pkt_start(struct usbhs_pipe *pipe); |
dad67397 | 110 | |
e8d548d5 | 111 | #endif /* RENESAS_USB_FIFO_H */ |