mirror of https://gitee.com/openkylin/linux.git
703 lines
14 KiB
C
703 lines
14 KiB
C
/*
|
|
* Renesas USB driver
|
|
*
|
|
* Copyright (C) 2011 Renesas Solutions Corp.
|
|
* Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
|
|
*
|
|
* 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 St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*
|
|
*/
|
|
#include <linux/delay.h>
|
|
#include <linux/slab.h>
|
|
#include "./common.h"
|
|
#include "./pipe.h"
|
|
|
|
/*
|
|
* macros
|
|
*/
|
|
#define usbhsp_addr_offset(p) ((usbhs_pipe_number(p) - 1) * 2)
|
|
|
|
#define usbhsp_flags_set(p, f) ((p)->flags |= USBHS_PIPE_FLAGS_##f)
|
|
#define usbhsp_flags_clr(p, f) ((p)->flags &= ~USBHS_PIPE_FLAGS_##f)
|
|
#define usbhsp_flags_has(p, f) ((p)->flags & USBHS_PIPE_FLAGS_##f)
|
|
#define usbhsp_flags_init(p) do {(p)->flags = 0; } while (0)
|
|
|
|
/*
|
|
* for debug
|
|
*/
|
|
static char *usbhsp_pipe_name[] = {
|
|
[USB_ENDPOINT_XFER_CONTROL] = "DCP",
|
|
[USB_ENDPOINT_XFER_BULK] = "BULK",
|
|
[USB_ENDPOINT_XFER_INT] = "INT",
|
|
[USB_ENDPOINT_XFER_ISOC] = "ISO",
|
|
};
|
|
|
|
char *usbhs_pipe_name(struct usbhs_pipe *pipe)
|
|
{
|
|
return usbhsp_pipe_name[usbhs_pipe_type(pipe)];
|
|
}
|
|
|
|
/*
|
|
* DCPCTR/PIPEnCTR functions
|
|
*/
|
|
static void usbhsp_pipectrl_set(struct usbhs_pipe *pipe, u16 mask, u16 val)
|
|
{
|
|
struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
|
|
int offset = usbhsp_addr_offset(pipe);
|
|
|
|
if (usbhs_pipe_is_dcp(pipe))
|
|
usbhs_bset(priv, DCPCTR, mask, val);
|
|
else
|
|
usbhs_bset(priv, PIPEnCTR + offset, mask, val);
|
|
}
|
|
|
|
static u16 usbhsp_pipectrl_get(struct usbhs_pipe *pipe)
|
|
{
|
|
struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
|
|
int offset = usbhsp_addr_offset(pipe);
|
|
|
|
if (usbhs_pipe_is_dcp(pipe))
|
|
return usbhs_read(priv, DCPCTR);
|
|
else
|
|
return usbhs_read(priv, PIPEnCTR + offset);
|
|
}
|
|
|
|
/*
|
|
* DCP/PIPE functions
|
|
*/
|
|
static void __usbhsp_pipe_xxx_set(struct usbhs_pipe *pipe,
|
|
u16 dcp_reg, u16 pipe_reg,
|
|
u16 mask, u16 val)
|
|
{
|
|
struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
|
|
|
|
if (usbhs_pipe_is_dcp(pipe))
|
|
usbhs_bset(priv, dcp_reg, mask, val);
|
|
else
|
|
usbhs_bset(priv, pipe_reg, mask, val);
|
|
}
|
|
|
|
/*
|
|
* DCPCFG/PIPECFG functions
|
|
*/
|
|
static void usbhsp_pipe_cfg_set(struct usbhs_pipe *pipe, u16 mask, u16 val)
|
|
{
|
|
__usbhsp_pipe_xxx_set(pipe, DCPCFG, PIPECFG, mask, val);
|
|
}
|
|
|
|
/*
|
|
* PIPEBUF
|
|
*/
|
|
static void usbhsp_pipe_buf_set(struct usbhs_pipe *pipe, u16 mask, u16 val)
|
|
{
|
|
if (usbhs_pipe_is_dcp(pipe))
|
|
return;
|
|
|
|
__usbhsp_pipe_xxx_set(pipe, 0, PIPEBUF, mask, val);
|
|
}
|
|
|
|
/*
|
|
* DCPMAXP/PIPEMAXP
|
|
*/
|
|
static void usbhsp_pipe_maxp_set(struct usbhs_pipe *pipe, u16 mask, u16 val)
|
|
{
|
|
__usbhsp_pipe_xxx_set(pipe, DCPMAXP, PIPEMAXP, mask, val);
|
|
}
|
|
|
|
/*
|
|
* pipe control functions
|
|
*/
|
|
static void usbhsp_pipe_select(struct usbhs_pipe *pipe)
|
|
{
|
|
struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
|
|
|
|
/*
|
|
* On pipe, this is necessary before
|
|
* accesses to below registers.
|
|
*
|
|
* PIPESEL : usbhsp_pipe_select
|
|
* PIPECFG : usbhsp_pipe_cfg_xxx
|
|
* PIPEBUF : usbhsp_pipe_buf_xxx
|
|
* PIPEMAXP : usbhsp_pipe_maxp_xxx
|
|
* PIPEPERI
|
|
*/
|
|
|
|
/*
|
|
* if pipe is dcp, no pipe is selected.
|
|
* it is no problem, because dcp have its register
|
|
*/
|
|
usbhs_write(priv, PIPESEL, 0xF & usbhs_pipe_number(pipe));
|
|
}
|
|
|
|
static int usbhsp_pipe_barrier(struct usbhs_pipe *pipe)
|
|
{
|
|
struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
|
|
int timeout = 1024;
|
|
u16 val;
|
|
|
|
/*
|
|
* make sure....
|
|
*
|
|
* Modify these bits when CSSTS = 0, PID = NAK, and no pipe number is
|
|
* specified by the CURPIPE bits.
|
|
* When changing the setting of this bit after changing
|
|
* the PID bits for the selected pipe from BUF to NAK,
|
|
* check that CSSTS = 0 and PBUSY = 0.
|
|
*/
|
|
|
|
/*
|
|
* CURPIPE bit = 0
|
|
*
|
|
* see also
|
|
* "Operation"
|
|
* - "Pipe Control"
|
|
* - "Pipe Control Registers Switching Procedure"
|
|
*/
|
|
usbhs_write(priv, CFIFOSEL, 0);
|
|
usbhs_pipe_disable(pipe);
|
|
|
|
do {
|
|
val = usbhsp_pipectrl_get(pipe);
|
|
val &= CSSTS | PID_MASK;
|
|
if (!val)
|
|
return 0;
|
|
|
|
udelay(10);
|
|
|
|
} while (timeout--);
|
|
|
|
return -EBUSY;
|
|
}
|
|
|
|
int usbhs_pipe_is_accessible(struct usbhs_pipe *pipe)
|
|
{
|
|
u16 val;
|
|
|
|
val = usbhsp_pipectrl_get(pipe);
|
|
if (val & BSTS)
|
|
return 0;
|
|
|
|
return -EBUSY;
|
|
}
|
|
|
|
/*
|
|
* PID ctrl
|
|
*/
|
|
static void __usbhsp_pid_try_nak_if_stall(struct usbhs_pipe *pipe)
|
|
{
|
|
u16 pid = usbhsp_pipectrl_get(pipe);
|
|
|
|
pid &= PID_MASK;
|
|
|
|
/*
|
|
* see
|
|
* "Pipe n Control Register" - "PID"
|
|
*/
|
|
switch (pid) {
|
|
case PID_STALL11:
|
|
usbhsp_pipectrl_set(pipe, PID_MASK, PID_STALL10);
|
|
/* fall-through */
|
|
case PID_STALL10:
|
|
usbhsp_pipectrl_set(pipe, PID_MASK, PID_NAK);
|
|
}
|
|
}
|
|
|
|
void usbhs_pipe_disable(struct usbhs_pipe *pipe)
|
|
{
|
|
int timeout = 1024;
|
|
u16 val;
|
|
|
|
/* see "Pipe n Control Register" - "PID" */
|
|
__usbhsp_pid_try_nak_if_stall(pipe);
|
|
|
|
usbhsp_pipectrl_set(pipe, PID_MASK, PID_NAK);
|
|
|
|
do {
|
|
val = usbhsp_pipectrl_get(pipe);
|
|
val &= PBUSY;
|
|
if (!val)
|
|
break;
|
|
|
|
udelay(10);
|
|
} while (timeout--);
|
|
}
|
|
|
|
void usbhs_pipe_enable(struct usbhs_pipe *pipe)
|
|
{
|
|
/* see "Pipe n Control Register" - "PID" */
|
|
__usbhsp_pid_try_nak_if_stall(pipe);
|
|
|
|
usbhsp_pipectrl_set(pipe, PID_MASK, PID_BUF);
|
|
}
|
|
|
|
void usbhs_pipe_stall(struct usbhs_pipe *pipe)
|
|
{
|
|
u16 pid = usbhsp_pipectrl_get(pipe);
|
|
|
|
pid &= PID_MASK;
|
|
|
|
/*
|
|
* see
|
|
* "Pipe n Control Register" - "PID"
|
|
*/
|
|
switch (pid) {
|
|
case PID_NAK:
|
|
usbhsp_pipectrl_set(pipe, PID_MASK, PID_STALL10);
|
|
break;
|
|
case PID_BUF:
|
|
usbhsp_pipectrl_set(pipe, PID_MASK, PID_STALL11);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* pipe setup
|
|
*/
|
|
static int usbhsp_possible_double_buffer(struct usbhs_pipe *pipe)
|
|
{
|
|
/*
|
|
* only ISO / BULK pipe can use double buffer
|
|
*/
|
|
if (usbhs_pipe_type_is(pipe, USB_ENDPOINT_XFER_BULK) ||
|
|
usbhs_pipe_type_is(pipe, USB_ENDPOINT_XFER_ISOC))
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static u16 usbhsp_setup_pipecfg(struct usbhs_pipe *pipe,
|
|
int is_host,
|
|
int dir_in)
|
|
{
|
|
u16 type = 0;
|
|
u16 bfre = 0;
|
|
u16 dblb = 0;
|
|
u16 cntmd = 0;
|
|
u16 dir = 0;
|
|
u16 epnum = 0;
|
|
u16 shtnak = 0;
|
|
u16 type_array[] = {
|
|
[USB_ENDPOINT_XFER_BULK] = TYPE_BULK,
|
|
[USB_ENDPOINT_XFER_INT] = TYPE_INT,
|
|
[USB_ENDPOINT_XFER_ISOC] = TYPE_ISO,
|
|
};
|
|
int is_double = usbhsp_possible_double_buffer(pipe);
|
|
|
|
if (usbhs_pipe_is_dcp(pipe))
|
|
return -EINVAL;
|
|
|
|
/*
|
|
* PIPECFG
|
|
*
|
|
* see
|
|
* - "Register Descriptions" - "PIPECFG" register
|
|
* - "Features" - "Pipe configuration"
|
|
* - "Operation" - "Pipe Control"
|
|
*/
|
|
|
|
/* TYPE */
|
|
type = type_array[usbhs_pipe_type(pipe)];
|
|
|
|
/* BFRE */
|
|
if (usbhs_pipe_type_is(pipe, USB_ENDPOINT_XFER_ISOC) ||
|
|
usbhs_pipe_type_is(pipe, USB_ENDPOINT_XFER_BULK))
|
|
bfre = 0; /* FIXME */
|
|
|
|
/* DBLB */
|
|
if (usbhs_pipe_type_is(pipe, USB_ENDPOINT_XFER_ISOC) ||
|
|
usbhs_pipe_type_is(pipe, USB_ENDPOINT_XFER_BULK))
|
|
dblb = (is_double) ? DBLB : 0;
|
|
|
|
/* CNTMD */
|
|
if (usbhs_pipe_type_is(pipe, USB_ENDPOINT_XFER_BULK))
|
|
cntmd = 0; /* FIXME */
|
|
|
|
/* DIR */
|
|
if (dir_in)
|
|
usbhsp_flags_set(pipe, IS_DIR_HOST);
|
|
|
|
if ((is_host && !dir_in) ||
|
|
(!is_host && dir_in))
|
|
dir |= DIR_OUT;
|
|
|
|
if (!dir)
|
|
usbhsp_flags_set(pipe, IS_DIR_IN);
|
|
|
|
/* SHTNAK */
|
|
if (usbhs_pipe_type_is(pipe, USB_ENDPOINT_XFER_BULK) &&
|
|
!dir)
|
|
shtnak = SHTNAK;
|
|
|
|
/* EPNUM */
|
|
epnum = 0; /* see usbhs_pipe_config_update() */
|
|
|
|
return type |
|
|
bfre |
|
|
dblb |
|
|
cntmd |
|
|
dir |
|
|
shtnak |
|
|
epnum;
|
|
}
|
|
|
|
static u16 usbhsp_setup_pipebuff(struct usbhs_pipe *pipe)
|
|
{
|
|
struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
|
|
struct usbhs_pipe_info *info = usbhs_priv_to_pipeinfo(priv);
|
|
struct device *dev = usbhs_priv_to_dev(priv);
|
|
int pipe_num = usbhs_pipe_number(pipe);
|
|
int is_double = usbhsp_possible_double_buffer(pipe);
|
|
u16 buff_size;
|
|
u16 bufnmb;
|
|
u16 bufnmb_cnt;
|
|
|
|
/*
|
|
* PIPEBUF
|
|
*
|
|
* see
|
|
* - "Register Descriptions" - "PIPEBUF" register
|
|
* - "Features" - "Pipe configuration"
|
|
* - "Operation" - "FIFO Buffer Memory"
|
|
* - "Operation" - "Pipe Control"
|
|
*
|
|
* ex) if pipe6 - pipe9 are USB_ENDPOINT_XFER_INT (SH7724)
|
|
*
|
|
* BUFNMB: PIPE
|
|
* 0: pipe0 (DCP 256byte)
|
|
* 1: -
|
|
* 2: -
|
|
* 3: -
|
|
* 4: pipe6 (INT 64byte)
|
|
* 5: pipe7 (INT 64byte)
|
|
* 6: pipe8 (INT 64byte)
|
|
* 7: pipe9 (INT 64byte)
|
|
* 8 - xx: free (for BULK, ISOC)
|
|
*/
|
|
|
|
/*
|
|
* FIXME
|
|
*
|
|
* it doesn't have good buffer allocator
|
|
*
|
|
* DCP : 256 byte
|
|
* BULK: 512 byte
|
|
* INT : 64 byte
|
|
* ISOC: 512 byte
|
|
*/
|
|
if (usbhs_pipe_type_is(pipe, USB_ENDPOINT_XFER_CONTROL))
|
|
buff_size = 256;
|
|
else if (usbhs_pipe_type_is(pipe, USB_ENDPOINT_XFER_INT))
|
|
buff_size = 64;
|
|
else
|
|
buff_size = 512;
|
|
|
|
/* change buff_size to register value */
|
|
bufnmb_cnt = (buff_size / 64) - 1;
|
|
|
|
/* BUFNMB has been reserved for INT pipe
|
|
* see above */
|
|
if (usbhs_pipe_type_is(pipe, USB_ENDPOINT_XFER_INT)) {
|
|
bufnmb = pipe_num - 2;
|
|
} else {
|
|
bufnmb = info->bufnmb_last;
|
|
info->bufnmb_last += bufnmb_cnt + 1;
|
|
|
|
/*
|
|
* double buffer
|
|
*/
|
|
if (is_double)
|
|
info->bufnmb_last += bufnmb_cnt + 1;
|
|
}
|
|
|
|
dev_dbg(dev, "pipe : %d : buff_size 0x%x: bufnmb 0x%x\n",
|
|
pipe_num, buff_size, bufnmb);
|
|
|
|
return (0x1f & bufnmb_cnt) << 10 |
|
|
(0xff & bufnmb) << 0;
|
|
}
|
|
|
|
void usbhs_pipe_config_update(struct usbhs_pipe *pipe, u16 devsel,
|
|
u16 epnum, u16 maxp)
|
|
{
|
|
if (devsel > 0xA) {
|
|
struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
|
|
struct device *dev = usbhs_priv_to_dev(priv);
|
|
|
|
dev_err(dev, "devsel error %d\n", devsel);
|
|
|
|
devsel = 0;
|
|
}
|
|
|
|
usbhsp_pipe_barrier(pipe);
|
|
|
|
pipe->maxp = maxp;
|
|
|
|
usbhsp_pipe_select(pipe);
|
|
usbhsp_pipe_maxp_set(pipe, 0xFFFF,
|
|
(devsel << 12) |
|
|
maxp);
|
|
|
|
if (!usbhs_pipe_is_dcp(pipe))
|
|
usbhsp_pipe_cfg_set(pipe, 0x000F, epnum);
|
|
}
|
|
|
|
/*
|
|
* pipe control
|
|
*/
|
|
int usbhs_pipe_get_maxpacket(struct usbhs_pipe *pipe)
|
|
{
|
|
/*
|
|
* see
|
|
* usbhs_pipe_config_update()
|
|
* usbhs_dcp_malloc()
|
|
*/
|
|
return pipe->maxp;
|
|
}
|
|
|
|
int usbhs_pipe_is_dir_in(struct usbhs_pipe *pipe)
|
|
{
|
|
return usbhsp_flags_has(pipe, IS_DIR_IN);
|
|
}
|
|
|
|
int usbhs_pipe_is_dir_host(struct usbhs_pipe *pipe)
|
|
{
|
|
return usbhsp_flags_has(pipe, IS_DIR_HOST);
|
|
}
|
|
|
|
void usbhs_pipe_data_sequence(struct usbhs_pipe *pipe, int data)
|
|
{
|
|
u16 mask = (SQCLR | SQSET);
|
|
u16 val = (data) ? SQSET : SQCLR;
|
|
|
|
usbhsp_pipectrl_set(pipe, mask, val);
|
|
}
|
|
|
|
void usbhs_pipe_clear(struct usbhs_pipe *pipe)
|
|
{
|
|
usbhsp_pipectrl_set(pipe, ACLRM, ACLRM);
|
|
usbhsp_pipectrl_set(pipe, ACLRM, 0);
|
|
}
|
|
|
|
static struct usbhs_pipe *usbhsp_get_pipe(struct usbhs_priv *priv, u32 type)
|
|
{
|
|
struct usbhs_pipe *pos, *pipe;
|
|
int i;
|
|
|
|
/*
|
|
* find target pipe
|
|
*/
|
|
pipe = NULL;
|
|
usbhs_for_each_pipe_with_dcp(pos, priv, i) {
|
|
if (!usbhs_pipe_type_is(pos, type))
|
|
continue;
|
|
if (usbhsp_flags_has(pos, IS_USED))
|
|
continue;
|
|
|
|
pipe = pos;
|
|
break;
|
|
}
|
|
|
|
if (!pipe)
|
|
return NULL;
|
|
|
|
/*
|
|
* initialize pipe flags
|
|
*/
|
|
usbhsp_flags_init(pipe);
|
|
usbhsp_flags_set(pipe, IS_USED);
|
|
|
|
return pipe;
|
|
}
|
|
|
|
void usbhs_pipe_init(struct usbhs_priv *priv,
|
|
int (*dma_map_ctrl)(struct usbhs_pkt *pkt, int map))
|
|
{
|
|
struct usbhs_pipe_info *info = usbhs_priv_to_pipeinfo(priv);
|
|
struct usbhs_pipe *pipe;
|
|
int i;
|
|
|
|
/*
|
|
* FIXME
|
|
*
|
|
* driver needs good allocator.
|
|
*
|
|
* find first free buffer area (BULK, ISOC)
|
|
* (DCP, INT area is fixed)
|
|
*
|
|
* buffer number 0 - 3 have been reserved for DCP
|
|
* see
|
|
* usbhsp_to_bufnmb
|
|
*/
|
|
info->bufnmb_last = 4;
|
|
usbhs_for_each_pipe_with_dcp(pipe, priv, i) {
|
|
if (usbhs_pipe_type_is(pipe, USB_ENDPOINT_XFER_INT))
|
|
info->bufnmb_last++;
|
|
|
|
usbhsp_flags_init(pipe);
|
|
pipe->fifo = NULL;
|
|
pipe->mod_private = NULL;
|
|
INIT_LIST_HEAD(&pipe->list);
|
|
|
|
/* pipe force init */
|
|
usbhs_pipe_clear(pipe);
|
|
}
|
|
|
|
info->dma_map_ctrl = dma_map_ctrl;
|
|
}
|
|
|
|
struct usbhs_pipe *usbhs_pipe_malloc(struct usbhs_priv *priv,
|
|
int endpoint_type,
|
|
int dir_in)
|
|
{
|
|
struct device *dev = usbhs_priv_to_dev(priv);
|
|
struct usbhs_pipe *pipe;
|
|
int is_host = usbhs_mod_is_host(priv);
|
|
int ret;
|
|
u16 pipecfg, pipebuf;
|
|
|
|
pipe = usbhsp_get_pipe(priv, endpoint_type);
|
|
if (!pipe) {
|
|
dev_err(dev, "can't get pipe (%s)\n",
|
|
usbhsp_pipe_name[endpoint_type]);
|
|
return NULL;
|
|
}
|
|
|
|
INIT_LIST_HEAD(&pipe->list);
|
|
|
|
usbhs_pipe_disable(pipe);
|
|
|
|
/* make sure pipe is not busy */
|
|
ret = usbhsp_pipe_barrier(pipe);
|
|
if (ret < 0) {
|
|
dev_err(dev, "pipe setup failed %d\n", usbhs_pipe_number(pipe));
|
|
return NULL;
|
|
}
|
|
|
|
pipecfg = usbhsp_setup_pipecfg(pipe, is_host, dir_in);
|
|
pipebuf = usbhsp_setup_pipebuff(pipe);
|
|
|
|
usbhsp_pipe_select(pipe);
|
|
usbhsp_pipe_cfg_set(pipe, 0xFFFF, pipecfg);
|
|
usbhsp_pipe_buf_set(pipe, 0xFFFF, pipebuf);
|
|
|
|
usbhs_pipe_sequence_data0(pipe);
|
|
|
|
dev_dbg(dev, "enable pipe %d : %s (%s)\n",
|
|
usbhs_pipe_number(pipe),
|
|
usbhs_pipe_name(pipe),
|
|
usbhs_pipe_is_dir_in(pipe) ? "in" : "out");
|
|
|
|
/*
|
|
* epnum / maxp are still not set to this pipe.
|
|
* call usbhs_pipe_config_update() after this function !!
|
|
*/
|
|
|
|
return pipe;
|
|
}
|
|
|
|
void usbhs_pipe_select_fifo(struct usbhs_pipe *pipe, struct usbhs_fifo *fifo)
|
|
{
|
|
if (pipe->fifo)
|
|
pipe->fifo->pipe = NULL;
|
|
|
|
pipe->fifo = fifo;
|
|
|
|
if (fifo)
|
|
fifo->pipe = pipe;
|
|
}
|
|
|
|
|
|
/*
|
|
* dcp control
|
|
*/
|
|
struct usbhs_pipe *usbhs_dcp_malloc(struct usbhs_priv *priv)
|
|
{
|
|
struct usbhs_pipe *pipe;
|
|
|
|
pipe = usbhsp_get_pipe(priv, USB_ENDPOINT_XFER_CONTROL);
|
|
if (!pipe)
|
|
return NULL;
|
|
|
|
INIT_LIST_HEAD(&pipe->list);
|
|
|
|
/*
|
|
* call usbhs_pipe_config_update() after this function !!
|
|
*/
|
|
|
|
return pipe;
|
|
}
|
|
|
|
void usbhs_dcp_control_transfer_done(struct usbhs_pipe *pipe)
|
|
{
|
|
struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
|
|
|
|
WARN_ON(!usbhs_pipe_is_dcp(pipe));
|
|
|
|
usbhs_pipe_enable(pipe);
|
|
|
|
if (!usbhs_mod_is_host(priv)) /* funconly */
|
|
usbhsp_pipectrl_set(pipe, CCPL, CCPL);
|
|
}
|
|
|
|
void usbhs_dcp_dir_for_host(struct usbhs_pipe *pipe, int dir_out)
|
|
{
|
|
usbhsp_pipe_cfg_set(pipe, DIR_OUT,
|
|
dir_out ? DIR_OUT : 0);
|
|
}
|
|
|
|
/*
|
|
* pipe module function
|
|
*/
|
|
int usbhs_pipe_probe(struct usbhs_priv *priv)
|
|
{
|
|
struct usbhs_pipe_info *info = usbhs_priv_to_pipeinfo(priv);
|
|
struct usbhs_pipe *pipe;
|
|
struct device *dev = usbhs_priv_to_dev(priv);
|
|
u32 *pipe_type = usbhs_get_dparam(priv, pipe_type);
|
|
int pipe_size = usbhs_get_dparam(priv, pipe_size);
|
|
int i;
|
|
|
|
/* This driver expects 1st pipe is DCP */
|
|
if (pipe_type[0] != USB_ENDPOINT_XFER_CONTROL) {
|
|
dev_err(dev, "1st PIPE is not DCP\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
info->pipe = kzalloc(sizeof(struct usbhs_pipe) * pipe_size, GFP_KERNEL);
|
|
if (!info->pipe) {
|
|
dev_err(dev, "Could not allocate pipe\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
info->size = pipe_size;
|
|
|
|
/*
|
|
* init pipe
|
|
*/
|
|
usbhs_for_each_pipe_with_dcp(pipe, priv, i) {
|
|
pipe->priv = priv;
|
|
|
|
usbhs_pipe_type(pipe) =
|
|
pipe_type[i] & USB_ENDPOINT_XFERTYPE_MASK;
|
|
|
|
dev_dbg(dev, "pipe %x\t: %s\n",
|
|
i, usbhsp_pipe_name[pipe_type[i]]);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void usbhs_pipe_remove(struct usbhs_priv *priv)
|
|
{
|
|
struct usbhs_pipe_info *info = usbhs_priv_to_pipeinfo(priv);
|
|
|
|
kfree(info->pipe);
|
|
}
|