forked from luck/tmp_suning_uos_patched
294a39e782
Support urbs with scatter-gather lists by trying to fit sg list elements into page lists in one or more qTDs. qTDs must end on a wMaxPacketSize boundary so if this isn't possible the urb's sg list must be copied into bounce buffers. Signed-off-by: David Vrabel <david.vrabel@csr.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
216 lines
6.6 KiB
C
216 lines
6.6 KiB
C
/*
|
|
* Wireless Host Controller (WHC) private header.
|
|
*
|
|
* Copyright (C) 2007 Cambridge Silicon Radio Ltd.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License version
|
|
* 2 as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
|
|
* 02110-1301, USA.
|
|
*/
|
|
#ifndef __WHCD_H
|
|
#define __WHCD_H
|
|
|
|
#include <linux/uwb/whci.h>
|
|
#include <linux/uwb/umc.h>
|
|
#include <linux/workqueue.h>
|
|
|
|
#include "whci-hc.h"
|
|
|
|
/* Generic command timeout. */
|
|
#define WHC_GENCMD_TIMEOUT_MS 100
|
|
|
|
struct whc_dbg;
|
|
|
|
struct whc {
|
|
struct wusbhc wusbhc;
|
|
struct umc_dev *umc;
|
|
|
|
resource_size_t base_phys;
|
|
void __iomem *base;
|
|
int irq;
|
|
|
|
u8 n_devices;
|
|
u8 n_keys;
|
|
u8 n_mmc_ies;
|
|
|
|
u64 *pz_list;
|
|
struct dn_buf_entry *dn_buf;
|
|
struct di_buf_entry *di_buf;
|
|
dma_addr_t pz_list_dma;
|
|
dma_addr_t dn_buf_dma;
|
|
dma_addr_t di_buf_dma;
|
|
|
|
spinlock_t lock;
|
|
struct mutex mutex;
|
|
|
|
void * gen_cmd_buf;
|
|
dma_addr_t gen_cmd_buf_dma;
|
|
wait_queue_head_t cmd_wq;
|
|
|
|
struct workqueue_struct *workqueue;
|
|
struct work_struct dn_work;
|
|
|
|
struct dma_pool *qset_pool;
|
|
|
|
struct list_head async_list;
|
|
struct list_head async_removed_list;
|
|
wait_queue_head_t async_list_wq;
|
|
struct work_struct async_work;
|
|
|
|
struct list_head periodic_list[5];
|
|
struct list_head periodic_removed_list;
|
|
wait_queue_head_t periodic_list_wq;
|
|
struct work_struct periodic_work;
|
|
|
|
struct whc_dbg *dbg;
|
|
};
|
|
|
|
#define wusbhc_to_whc(w) (container_of((w), struct whc, wusbhc))
|
|
|
|
/**
|
|
* struct whc_std - a software TD.
|
|
* @urb: the URB this sTD is for.
|
|
* @offset: start of the URB's data for this TD.
|
|
* @len: the length of data in the associated TD.
|
|
* @ntds_remaining: number of TDs (starting from this one) in this transfer.
|
|
*
|
|
* @bounce_buf: a bounce buffer if the std was from an urb with a sg
|
|
* list that could not be mapped to qTDs directly.
|
|
* @bounce_sg: the first scatterlist element bounce_buf is for.
|
|
* @bounce_offset: the offset into bounce_sg for the start of bounce_buf.
|
|
*
|
|
* Queued URBs may require more TDs than are available in a qset so we
|
|
* use a list of these "software TDs" (sTDs) to hold per-TD data.
|
|
*/
|
|
struct whc_std {
|
|
struct urb *urb;
|
|
size_t len;
|
|
int ntds_remaining;
|
|
struct whc_qtd *qtd;
|
|
|
|
struct list_head list_node;
|
|
int num_pointers;
|
|
dma_addr_t dma_addr;
|
|
struct whc_page_list_entry *pl_virt;
|
|
|
|
void *bounce_buf;
|
|
struct scatterlist *bounce_sg;
|
|
unsigned bounce_offset;
|
|
};
|
|
|
|
/**
|
|
* struct whc_urb - per URB host controller structure.
|
|
* @urb: the URB this struct is for.
|
|
* @qset: the qset associated to the URB.
|
|
* @dequeue_work: the work to remove the URB when dequeued.
|
|
* @is_async: the URB belongs to async sheduler or not.
|
|
* @status: the status to be returned when calling wusbhc_giveback_urb.
|
|
*/
|
|
struct whc_urb {
|
|
struct urb *urb;
|
|
struct whc_qset *qset;
|
|
struct work_struct dequeue_work;
|
|
bool is_async;
|
|
int status;
|
|
};
|
|
|
|
/**
|
|
* whc_std_last - is this sTD the URB's last?
|
|
* @std: the sTD to check.
|
|
*/
|
|
static inline bool whc_std_last(struct whc_std *std)
|
|
{
|
|
return std->ntds_remaining <= 1;
|
|
}
|
|
|
|
enum whc_update {
|
|
WHC_UPDATE_ADDED = 0x01,
|
|
WHC_UPDATE_REMOVED = 0x02,
|
|
WHC_UPDATE_UPDATED = 0x04,
|
|
};
|
|
|
|
/* init.c */
|
|
int whc_init(struct whc *whc);
|
|
void whc_clean_up(struct whc *whc);
|
|
|
|
/* hw.c */
|
|
void whc_write_wusbcmd(struct whc *whc, u32 mask, u32 val);
|
|
int whc_do_gencmd(struct whc *whc, u32 cmd, u32 params, void *addr, size_t len);
|
|
void whc_hw_error(struct whc *whc, const char *reason);
|
|
|
|
/* wusb.c */
|
|
int whc_wusbhc_start(struct wusbhc *wusbhc);
|
|
void whc_wusbhc_stop(struct wusbhc *wusbhc, int delay);
|
|
int whc_mmcie_add(struct wusbhc *wusbhc, u8 interval, u8 repeat_cnt,
|
|
u8 handle, struct wuie_hdr *wuie);
|
|
int whc_mmcie_rm(struct wusbhc *wusbhc, u8 handle);
|
|
int whc_bwa_set(struct wusbhc *wusbhc, s8 stream_index, const struct uwb_mas_bm *mas_bm);
|
|
int whc_dev_info_set(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev);
|
|
int whc_set_num_dnts(struct wusbhc *wusbhc, u8 interval, u8 slots);
|
|
int whc_set_ptk(struct wusbhc *wusbhc, u8 port_idx, u32 tkid,
|
|
const void *ptk, size_t key_size);
|
|
int whc_set_gtk(struct wusbhc *wusbhc, u32 tkid,
|
|
const void *gtk, size_t key_size);
|
|
int whc_set_cluster_id(struct whc *whc, u8 bcid);
|
|
|
|
/* int.c */
|
|
irqreturn_t whc_int_handler(struct usb_hcd *hcd);
|
|
void whc_dn_work(struct work_struct *work);
|
|
|
|
/* asl.c */
|
|
void asl_start(struct whc *whc);
|
|
void asl_stop(struct whc *whc);
|
|
int asl_init(struct whc *whc);
|
|
void asl_clean_up(struct whc *whc);
|
|
int asl_urb_enqueue(struct whc *whc, struct urb *urb, gfp_t mem_flags);
|
|
int asl_urb_dequeue(struct whc *whc, struct urb *urb, int status);
|
|
void asl_qset_delete(struct whc *whc, struct whc_qset *qset);
|
|
void scan_async_work(struct work_struct *work);
|
|
|
|
/* pzl.c */
|
|
int pzl_init(struct whc *whc);
|
|
void pzl_clean_up(struct whc *whc);
|
|
void pzl_start(struct whc *whc);
|
|
void pzl_stop(struct whc *whc);
|
|
int pzl_urb_enqueue(struct whc *whc, struct urb *urb, gfp_t mem_flags);
|
|
int pzl_urb_dequeue(struct whc *whc, struct urb *urb, int status);
|
|
void pzl_qset_delete(struct whc *whc, struct whc_qset *qset);
|
|
void scan_periodic_work(struct work_struct *work);
|
|
|
|
/* qset.c */
|
|
struct whc_qset *qset_alloc(struct whc *whc, gfp_t mem_flags);
|
|
void qset_free(struct whc *whc, struct whc_qset *qset);
|
|
struct whc_qset *get_qset(struct whc *whc, struct urb *urb, gfp_t mem_flags);
|
|
void qset_delete(struct whc *whc, struct whc_qset *qset);
|
|
void qset_clear(struct whc *whc, struct whc_qset *qset);
|
|
void qset_reset(struct whc *whc, struct whc_qset *qset);
|
|
int qset_add_urb(struct whc *whc, struct whc_qset *qset, struct urb *urb,
|
|
gfp_t mem_flags);
|
|
void qset_free_std(struct whc *whc, struct whc_std *std);
|
|
void qset_remove_urb(struct whc *whc, struct whc_qset *qset,
|
|
struct urb *urb, int status);
|
|
void process_halted_qtd(struct whc *whc, struct whc_qset *qset,
|
|
struct whc_qtd *qtd);
|
|
void process_inactive_qtd(struct whc *whc, struct whc_qset *qset,
|
|
struct whc_qtd *qtd);
|
|
enum whc_update qset_add_qtds(struct whc *whc, struct whc_qset *qset);
|
|
void qset_remove_complete(struct whc *whc, struct whc_qset *qset);
|
|
void pzl_update(struct whc *whc, uint32_t wusbcmd);
|
|
void asl_update(struct whc *whc, uint32_t wusbcmd);
|
|
|
|
/* debug.c */
|
|
void whc_dbg_init(struct whc *whc);
|
|
void whc_dbg_clean_up(struct whc *whc);
|
|
|
|
#endif /* #ifndef __WHCD_H */
|