gisi: Adapt and refactor pipe module

Make use of the new client API and refactor the code.
This commit is contained in:
Aki Niemi 2010-11-14 18:29:09 +02:00
parent 7cd90666be
commit 068233c370
2 changed files with 153 additions and 113 deletions

View File

@ -26,12 +26,13 @@
#include <stdint.h>
#include <errno.h>
#include <glib.h>
#include "client.h"
#include "pipe.h"
#define PN_PIPE 0xd9
typedef struct {
struct isi_pipe_create_req {
uint8_t cmd;
uint8_t state_after;
uint8_t priority;
@ -45,37 +46,35 @@ typedef struct {
uint8_t object2;
uint8_t type2;
uint8_t n_sb;
} isi_pipe_create_req_t;
};
typedef struct {
struct isi_pipe_enable_req {
uint8_t cmd;
uint8_t pipe_handle;
uint8_t pad;
} isi_pipe_enable_req_t;
};
typedef struct {
struct isi_pipe_reset_req {
uint8_t cmd;
uint8_t pipe_handle;
uint8_t state_after;
} isi_pipe_reset_req_t;
};
typedef struct {
struct isi_pipe_remove_req {
uint8_t cmd;
uint8_t pipe_handle;
} isi_pipe_remove_req_t;
};
typedef struct {
uint8_t cmd;
struct isi_pipe_resp {
uint8_t pipe_handle;
uint8_t error_code;
uint8_t error1;
uint8_t error2;
} isi_pipe_resp_t;
};
#define PN_PIPE_INVALID_HANDLE 0xff
enum {
enum isi_pipe_message_id {
PNS_PIPE_CREATE_REQ,
PNS_PIPE_CREATE_RESP,
PNS_PIPE_REMOVE_REQ,
@ -90,8 +89,8 @@ enum {
PNS_PIPE_DISABLE_RESP,
};
enum { /* error codes */
PN_PIPE_NO_ERROR,
enum pn_pipe_error { /* error codes */
PN_PIPE_ERR_NO_ERROR,
PN_PIPE_ERR_INVALID_PARAM,
PN_PIPE_ERR_INVALID_HANDLE,
PN_PIPE_ERR_INVALID_CTRL_ID,
@ -105,20 +104,20 @@ enum { /* error codes */
PN_PIPE_ERR_NOT_SUPPORTED,
};
enum { /* initial pipe state */
enum pn_pipe_state { /* initial pipe state */
PN_PIPE_DISABLE,
PN_PIPE_ENABLE,
};
enum {
enum pn_msg_priority {
PN_MSG_PRIORITY_LOW = 1,
PN_MSG_PRIORITY_HIGH,
};
struct _GIsiPipe {
GIsiClient *client;
void (*handler)(GIsiPipe *);
void (*error_handler)(GIsiPipe *);
GIsiPipeHandler handler;
GIsiPipeErrorHandler error_handler;
void *opaque;
int error;
uint8_t handle;
@ -126,26 +125,34 @@ struct _GIsiPipe {
gboolean enabling;
};
static int g_isi_pipe_error(uint8_t code)
static int g_isi_pipe_error(enum pn_pipe_error code)
{
static const int codes[] = {
[PN_PIPE_NO_ERROR] = 0,
[PN_PIPE_ERR_INVALID_PARAM] = -EINVAL,
[PN_PIPE_ERR_INVALID_HANDLE] = -EBADF,
[PN_PIPE_ERR_INVALID_CTRL_ID] = -ENOTSUP,
[PN_PIPE_ERR_NOT_ALLOWED] = -EPERM,
[PN_PIPE_ERR_PEP_IN_USE] = -EBUSY,
[PN_PIPE_ERR_OVERLOAD] = -ENOBUFS,
[PN_PIPE_ERR_DEV_DISCONNECTED] = -ENETDOWN,
[PN_PIPE_ERR_TIMEOUT] = -ETIMEDOUT,
[PN_PIPE_ERR_ALL_PIPES_IN_USE] = -ENFILE,
[PN_PIPE_ERR_GENERAL] = -EAGAIN,
[PN_PIPE_ERR_NOT_SUPPORTED] = -ENOSYS,
};
if (code == PN_PIPE_NO_ERROR ||
((code < sizeof(codes) / sizeof(codes[0])) && codes[code]))
return codes[code];
switch (code) {
case PN_PIPE_ERR_NO_ERROR:
return 0;
case PN_PIPE_ERR_INVALID_PARAM:
return -EINVAL;
case PN_PIPE_ERR_INVALID_HANDLE:
return -EBADF;
case PN_PIPE_ERR_INVALID_CTRL_ID:
return -ENOTSUP;
case PN_PIPE_ERR_NOT_ALLOWED:
return -EPERM;
case PN_PIPE_ERR_PEP_IN_USE:
return -EBUSY;
case PN_PIPE_ERR_OVERLOAD:
return -ENOBUFS;
case PN_PIPE_ERR_DEV_DISCONNECTED:
return -ENETDOWN;
case PN_PIPE_ERR_TIMEOUT:
return -ETIMEDOUT;
case PN_PIPE_ERR_ALL_PIPES_IN_USE:
return -ENFILE;
case PN_PIPE_ERR_GENERAL:
return -EAGAIN;
case PN_PIPE_ERR_NOT_SUPPORTED:
return -ENOSYS;
}
return -EBADMSG;
}
@ -155,31 +162,41 @@ static void g_isi_pipe_handle_error(GIsiPipe *pipe, uint8_t code)
if (err == 0)
return;
pipe->error = err;
if (pipe->error_handler)
pipe->error_handler(pipe);
}
static gboolean g_isi_pipe_created(GIsiClient *client,
const void *restrict data, size_t len,
uint16_t object, void *opaque)
static void g_isi_pipe_created(const GIsiMessage *msg, void *data)
{
GIsiPipe *pipe = opaque;
const isi_pipe_resp_t *resp = data;
const struct isi_pipe_resp *resp = g_isi_msg_data(msg);
GIsiPipe *pipe = data;
if (len < 5 ||
resp->cmd != PNS_PIPE_CREATE_RESP)
return FALSE;
if (g_isi_msg_error(msg) < 0) {
g_isi_pipe_handle_error(pipe, PN_PIPE_ERR_TIMEOUT);
return;
}
if (resp->pipe_handle != PN_PIPE_INVALID_HANDLE) {
pipe->handle = resp->pipe_handle;
if (pipe->enabling)
g_isi_pipe_start(pipe);
if (pipe->handler)
pipe->handler(pipe);
} else
if (g_isi_msg_id(msg) != PNS_PIPE_CREATE_RESP)
return;
if (!resp || g_isi_msg_data_len(msg) != sizeof(struct isi_pipe_resp))
return;
if (resp->pipe_handle == PN_PIPE_INVALID_HANDLE) {
g_isi_pipe_handle_error(pipe, resp->error_code);
return TRUE;
return;
}
pipe->handle = resp->pipe_handle;
if (pipe->enabling)
g_isi_pipe_start(pipe);
if (pipe->handler)
pipe->handler(pipe);
}
/**
@ -192,11 +209,10 @@ static gboolean g_isi_pipe_created(GIsiClient *client,
* @param type2 Type of the second end point
* @return a pipe object on success, NULL on error.
*/
GIsiPipe *g_isi_pipe_create(GIsiModem *modem, void (*created)(GIsiPipe *),
uint16_t obj1, uint16_t obj2,
uint8_t type1, uint8_t type2)
GIsiPipe *g_isi_pipe_create(GIsiModem *modem, GIsiPipeHandler cb, uint16_t obj1,
uint16_t obj2, uint8_t type1, uint8_t type2)
{
isi_pipe_create_req_t msg = {
struct isi_pipe_create_req msg = {
.cmd = PNS_PIPE_CREATE_REQ,
.state_after = PN_PIPE_DISABLE,
.priority = PN_MSG_PRIORITY_LOW,
@ -208,73 +224,75 @@ GIsiPipe *g_isi_pipe_create(GIsiModem *modem, void (*created)(GIsiPipe *),
.type2 = type2,
.n_sb = 0,
};
GIsiPipe *pipe = g_try_malloc(sizeof(GIsiPipe));
GIsiPipe *pipe;
if (pipe == NULL)
pipe = g_try_new0(GIsiPipe, 1);
if (pipe == NULL) {
errno = ENOMEM;
return NULL;
}
pipe->client = g_isi_client_create(modem, PN_PIPE);
pipe->handler = created;
if (pipe->client == NULL) {
errno = ENOMEM;
g_free(pipe);
return NULL;
}
pipe->handler = cb;
pipe->error_handler = NULL;
pipe->error = 0;
pipe->enabling = FALSE;
pipe->enabled = FALSE;
pipe->handle = PN_PIPE_INVALID_HANDLE;
if (pipe->client == NULL ||
g_isi_request_make(pipe->client, &msg, sizeof(msg), 3,
g_isi_pipe_created, pipe) == NULL)
goto error;
if (g_isi_client_send(pipe->client, &msg, sizeof(msg), 3,
g_isi_pipe_created, pipe, NULL))
return pipe;
return pipe;
error:
if (pipe->client)
g_isi_client_destroy(pipe->client);
g_isi_client_destroy(pipe->client);
g_free(pipe);
return NULL;
}
static const isi_pipe_resp_t *
g_isi_pipe_check_resp(const GIsiPipe *pipe, uint8_t cmd,
const void *restrict data, size_t len)
static void g_isi_pipe_enabled(const GIsiMessage *msg, void *data)
{
const isi_pipe_resp_t *resp = data;
GIsiPipe *pipe = data;
const struct isi_pipe_resp *resp = g_isi_msg_data(msg);
if ((len < 5) || (resp->cmd != cmd) ||
(resp->pipe_handle != pipe->handle))
return NULL;
return resp;
}
if (g_isi_msg_error(msg) < 0) {
g_isi_pipe_handle_error(pipe, PN_PIPE_ERR_TIMEOUT);
return;
}
static gboolean g_isi_pipe_enabled(GIsiClient *client,
const void *restrict data, size_t len,
uint16_t object, void *opaque)
{
GIsiPipe *pipe = opaque;
const isi_pipe_resp_t *resp;
if (g_isi_msg_id(msg) != PNS_PIPE_ENABLE_RESP)
return;
resp = g_isi_pipe_check_resp(pipe, PNS_PIPE_ENABLE_RESP, data, len);
if (!resp)
return FALSE;
if (!resp || g_isi_msg_data_len(msg) != sizeof(struct isi_pipe_resp))
return;
if (pipe->handle != resp->pipe_handle)
return;
g_isi_pipe_handle_error(pipe, resp->error_code);
pipe->enabling = FALSE;
if (!pipe->error)
pipe->enabled = TRUE;
return TRUE;
}
static GIsiRequest *g_isi_pipe_enable(GIsiPipe *pipe)
static GIsiPending *g_isi_pipe_enable(GIsiPipe *pipe)
{
isi_pipe_enable_req_t msg = {
struct isi_pipe_enable_req msg = {
.cmd = PNS_PIPE_ENABLE_REQ,
.pipe_handle = pipe->handle,
};
const size_t len = 3;
size_t len = sizeof(struct isi_pipe_enable_req);
return g_isi_request_make(pipe->client, &msg, len, 5,
g_isi_pipe_enabled, pipe);
return g_isi_client_send(pipe->client, &msg, len, 5, g_isi_pipe_enabled,
pipe, NULL);
}
/**
@ -286,6 +304,7 @@ int g_isi_pipe_start(GIsiPipe *pipe)
{
if (pipe->error)
return pipe->error;
if (pipe->enabling || pipe->enabled)
return 0;
@ -298,33 +317,37 @@ int g_isi_pipe_start(GIsiPipe *pipe)
}
/* Not very useful, it will never have time to trigger */
static gboolean g_isi_pipe_removed(GIsiClient *client,
const void *restrict data, size_t len,
uint16_t object, void *opaque)
static void g_isi_pipe_removed(const GIsiMessage *msg, void *data)
{
GIsiPipe *pipe = opaque;
const isi_pipe_resp_t *resp;
GIsiPipe *pipe = data;
const struct isi_pipe_resp *resp = g_isi_msg_data(msg);
resp = g_isi_pipe_check_resp(pipe, PNS_PIPE_REMOVE_RESP, data, len);
if (!resp)
return FALSE;
if (g_isi_msg_error(msg) < 0) {
g_isi_pipe_handle_error(pipe, PN_PIPE_ERR_TIMEOUT);
return;
}
if (g_isi_msg_id(msg) != PNS_PIPE_REMOVE_RESP)
return;
if (!resp || g_isi_msg_data_len(msg) != sizeof(struct isi_pipe_resp))
return;
pipe->handle = PN_PIPE_INVALID_HANDLE;
pipe->error = -EPIPE;
return TRUE;
}
static GIsiRequest *g_isi_pipe_remove(GIsiPipe *pipe)
static GIsiPending *g_isi_pipe_remove(GIsiPipe *pipe)
{
isi_pipe_remove_req_t msg = {
struct isi_pipe_remove_req msg = {
.cmd = PNS_PIPE_REMOVE_REQ,
.pipe_handle = pipe->handle,
};
const size_t len = 3;
size_t len = sizeof(struct isi_pipe_remove_req);
return g_isi_request_make(pipe->client, &msg, len, 5,
g_isi_pipe_removed, pipe);
return g_isi_client_send(pipe->client, &msg, len, 5, g_isi_pipe_removed,
pipe, NULL);
}
/**
@ -335,11 +358,12 @@ void g_isi_pipe_destroy(GIsiPipe *pipe)
{
if (!pipe->error)
g_isi_pipe_remove(pipe);
g_isi_client_destroy(pipe->client);
g_free(pipe);
}
void g_isi_pipe_set_error_handler(GIsiPipe *pipe, void (*cb)(GIsiPipe *))
void g_isi_pipe_set_error_handler(GIsiPipe *pipe, GIsiPipeErrorHandler cb)
{
pipe->error_handler = cb;
}

View File

@ -19,17 +19,33 @@
*
*/
#ifndef __GISI_PIPE_H
#define __GISI_PIPE_H
#ifdef __cplusplus
extern "C" {
#endif
struct _GIsiPipe;
typedef struct _GIsiPipe GIsiPipe;
GIsiPipe *g_isi_pipe_create(GIsiModem *, void (*cb)(GIsiPipe *),
uint16_t obj1, uint16_t obj2,
uint8_t type1, uint8_t type2);
typedef void (*GIsiPipeHandler)(GIsiPipe *pipe);
typedef void (*GIsiPipeErrorHandler)(GIsiPipe *pipe);
GIsiPipe *g_isi_pipe_create(GIsiModem *modem, GIsiPipeHandler cb, uint16_t obj1,
uint16_t obj2, uint8_t type1, uint8_t type2);
void g_isi_pipe_destroy(GIsiPipe *pipe);
void g_isi_pipe_set_error_handler(GIsiPipe *pipe, void (*cb)(GIsiPipe *));
void g_isi_pipe_set_error_handler(GIsiPipe *pipe, GIsiPipeErrorHandler cb);
int g_isi_pipe_get_error(const GIsiPipe *pipe);
void *g_isi_pipe_set_userdata(GIsiPipe *pipe, void *data);
void *g_isi_pipe_get_userdata(GIsiPipe *pipe);
uint8_t g_isi_pipe_get_handle(GIsiPipe *pipe);
int g_isi_pipe_start(GIsiPipe *pipe);
#ifdef __cplusplus
}
#endif
#endif /* __GISI_PIPE_H */