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-rw-r--r--drivers/usb/host/whci/whcd.h197
1 files changed, 197 insertions, 0 deletions
diff --git a/drivers/usb/host/whci/whcd.h b/drivers/usb/host/whci/whcd.h
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index 000000000000..1d2a53bd39fd
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+++ b/drivers/usb/host/whci/whcd.h
@@ -0,0 +1,197 @@
1/*
2 * Wireless Host Controller (WHC) private header.
3 *
4 * Copyright (C) 2007 Cambridge Silicon Radio Ltd.
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License version
8 * 2 as published by the Free Software Foundation.
9 *
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.
14 *
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., 51 Franklin Street, Fifth Floor, Boston, MA
18 * 02110-1301, USA.
19 */
20#ifndef __WHCD_H
21#define __WHCD_H
22
23#include <linux/uwb/whci.h>
24#include <linux/workqueue.h>
25
26#include "whci-hc.h"
27
28/* Generic command timeout. */
29#define WHC_GENCMD_TIMEOUT_MS 100
30
31
32struct whc {
33 struct wusbhc wusbhc;
34 struct umc_dev *umc;
35
36 resource_size_t base_phys;
37 void __iomem *base;
38 int irq;
39
40 u8 n_devices;
41 u8 n_keys;
42 u8 n_mmc_ies;
43
44 u64 *pz_list;
45 struct dn_buf_entry *dn_buf;
46 struct di_buf_entry *di_buf;
47 dma_addr_t pz_list_dma;
48 dma_addr_t dn_buf_dma;
49 dma_addr_t di_buf_dma;
50
51 spinlock_t lock;
52 struct mutex mutex;
53
54 void * gen_cmd_buf;
55 dma_addr_t gen_cmd_buf_dma;
56 wait_queue_head_t cmd_wq;
57
58 struct workqueue_struct *workqueue;
59 struct work_struct dn_work;
60
61 struct dma_pool *qset_pool;
62
63 struct list_head async_list;
64 struct list_head async_removed_list;
65 wait_queue_head_t async_list_wq;
66 struct work_struct async_work;
67
68 struct list_head periodic_list[5];
69 struct list_head periodic_removed_list;
70 wait_queue_head_t periodic_list_wq;
71 struct work_struct periodic_work;
72};
73
74#define wusbhc_to_whc(w) (container_of((w), struct whc, wusbhc))
75
76/**
77 * struct whc_std - a software TD.
78 * @urb: the URB this sTD is for.
79 * @offset: start of the URB's data for this TD.
80 * @len: the length of data in the associated TD.
81 * @ntds_remaining: number of TDs (starting from this one) in this transfer.
82 *
83 * Queued URBs may require more TDs than are available in a qset so we
84 * use a list of these "software TDs" (sTDs) to hold per-TD data.
85 */
86struct whc_std {
87 struct urb *urb;
88 size_t len;
89 int ntds_remaining;
90 struct whc_qtd *qtd;
91
92 struct list_head list_node;
93 int num_pointers;
94 dma_addr_t dma_addr;
95 struct whc_page_list_entry *pl_virt;
96};
97
98/**
99 * struct whc_urb - per URB host controller structure.
100 * @urb: the URB this struct is for.
101 * @qset: the qset associated to the URB.
102 * @dequeue_work: the work to remove the URB when dequeued.
103 * @is_async: the URB belongs to async sheduler or not.
104 * @status: the status to be returned when calling wusbhc_giveback_urb.
105 */
106struct whc_urb {
107 struct urb *urb;
108 struct whc_qset *qset;
109 struct work_struct dequeue_work;
110 bool is_async;
111 int status;
112};
113
114/**
115 * whc_std_last - is this sTD the URB's last?
116 * @std: the sTD to check.
117 */
118static inline bool whc_std_last(struct whc_std *std)
119{
120 return std->ntds_remaining <= 1;
121}
122
123enum whc_update {
124 WHC_UPDATE_ADDED = 0x01,
125 WHC_UPDATE_REMOVED = 0x02,
126 WHC_UPDATE_UPDATED = 0x04,
127};
128
129/* init.c */
130int whc_init(struct whc *whc);
131void whc_clean_up(struct whc *whc);
132
133/* hw.c */
134void whc_write_wusbcmd(struct whc *whc, u32 mask, u32 val);
135int whc_do_gencmd(struct whc *whc, u32 cmd, u32 params, void *addr, size_t len);
136
137/* wusb.c */
138int whc_wusbhc_start(struct wusbhc *wusbhc);
139void whc_wusbhc_stop(struct wusbhc *wusbhc);
140int whc_mmcie_add(struct wusbhc *wusbhc, u8 interval, u8 repeat_cnt,
141 u8 handle, struct wuie_hdr *wuie);
142int whc_mmcie_rm(struct wusbhc *wusbhc, u8 handle);
143int whc_bwa_set(struct wusbhc *wusbhc, s8 stream_index, const struct uwb_mas_bm *mas_bm);
144int whc_dev_info_set(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev);
145int whc_set_num_dnts(struct wusbhc *wusbhc, u8 interval, u8 slots);
146int whc_set_ptk(struct wusbhc *wusbhc, u8 port_idx, u32 tkid,
147 const void *ptk, size_t key_size);
148int whc_set_gtk(struct wusbhc *wusbhc, u32 tkid,
149 const void *gtk, size_t key_size);
150int whc_set_cluster_id(struct whc *whc, u8 bcid);
151
152/* int.c */
153irqreturn_t whc_int_handler(struct usb_hcd *hcd);
154void whc_dn_work(struct work_struct *work);
155
156/* asl.c */
157void asl_start(struct whc *whc);
158void asl_stop(struct whc *whc);
159int asl_init(struct whc *whc);
160void asl_clean_up(struct whc *whc);
161int asl_urb_enqueue(struct whc *whc, struct urb *urb, gfp_t mem_flags);
162int asl_urb_dequeue(struct whc *whc, struct urb *urb, int status);
163void asl_qset_delete(struct whc *whc, struct whc_qset *qset);
164void scan_async_work(struct work_struct *work);
165
166/* pzl.c */
167int pzl_init(struct whc *whc);
168void pzl_clean_up(struct whc *whc);
169void pzl_start(struct whc *whc);
170void pzl_stop(struct whc *whc);
171int pzl_urb_enqueue(struct whc *whc, struct urb *urb, gfp_t mem_flags);
172int pzl_urb_dequeue(struct whc *whc, struct urb *urb, int status);
173void pzl_qset_delete(struct whc *whc, struct whc_qset *qset);
174void scan_periodic_work(struct work_struct *work);
175
176/* qset.c */
177struct whc_qset *qset_alloc(struct whc *whc, gfp_t mem_flags);
178void qset_free(struct whc *whc, struct whc_qset *qset);
179struct whc_qset *get_qset(struct whc *whc, struct urb *urb, gfp_t mem_flags);
180void qset_delete(struct whc *whc, struct whc_qset *qset);
181void qset_clear(struct whc *whc, struct whc_qset *qset);
182int qset_add_urb(struct whc *whc, struct whc_qset *qset, struct urb *urb,
183 gfp_t mem_flags);
184void qset_free_std(struct whc *whc, struct whc_std *std);
185void qset_remove_urb(struct whc *whc, struct whc_qset *qset,
186 struct urb *urb, int status);
187void process_halted_qtd(struct whc *whc, struct whc_qset *qset,
188 struct whc_qtd *qtd);
189void process_inactive_qtd(struct whc *whc, struct whc_qset *qset,
190 struct whc_qtd *qtd);
191enum whc_update qset_add_qtds(struct whc *whc, struct whc_qset *qset);
192void qset_remove_complete(struct whc *whc, struct whc_qset *qset);
193void dump_qset(struct whc_qset *qset, struct device *dev);
194void pzl_update(struct whc *whc, uint32_t wusbcmd);
195void asl_update(struct whc *whc, uint32_t wusbcmd);
196
197#endif /* #ifndef __WHCD_H */
generated by cgit v1.2.2 (git 2.25.0) at 2026-01-09 17:15:10 -0500