diff options
| author | Jean Delvare <khali@linux-fr.org> | 2005-05-07 22:58:46 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2005-06-22 06:51:55 +0200 |
| commit | 815f55f280fb2781ba1c2a350516b73e55119c60 (patch) | |
| tree | 48c06bd1650d44aa274989ce2696eb5091d3805c /drivers/i2c | |
| parent | [PATCH] I2C: Allow for sharing of the interrupt line for i2c-mpc.c (diff) | |
| download | linux-815f55f280fb2781ba1c2a350516b73e55119c60.tar.xz linux-815f55f280fb2781ba1c2a350516b73e55119c60.zip | |
[PATCH] I2C: Remove redundancy from i2c-core.c
Call i2c_transfer() from i2c_master_send() and i2c_master_recv() to
avoid the redundant code that was in all three functions. It also
removes unnecessary debug statements as suggested by Jean Delvare.
This is important for the non-blocking interfaces because they will
have to handle a non-blocking interface in this area. Having it in
one place greatly simplifies the changes.
Signed-off-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/i2c-core.c | 64 |
1 files changed, 20 insertions, 44 deletions
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index ecf43b13fefc..f50342832d95 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -611,27 +611,16 @@ int i2c_master_send(struct i2c_client *client,const char *buf ,int count) struct i2c_adapter *adap=client->adapter; struct i2c_msg msg; - if (client->adapter->algo->master_xfer) { - msg.addr = client->addr; - msg.flags = client->flags & I2C_M_TEN; - msg.len = count; - msg.buf = (char *)buf; + msg.addr = client->addr; + msg.flags = client->flags & I2C_M_TEN; + msg.len = count; + msg.buf = (char *)buf; - dev_dbg(&client->adapter->dev, "master_send: writing %d bytes.\n", - count); - - down(&adap->bus_lock); - ret = adap->algo->master_xfer(adap,&msg,1); - up(&adap->bus_lock); + ret = i2c_transfer(adap, &msg, 1); - /* if everything went ok (i.e. 1 msg transmitted), return #bytes - * transmitted, else error code. - */ - return (ret == 1 )? count : ret; - } else { - dev_err(&client->adapter->dev, "I2C level transfers not supported\n"); - return -ENOSYS; - } + /* If everything went ok (i.e. 1 msg transmitted), return #bytes + transmitted, else error code. */ + return (ret == 1) ? count : ret; } int i2c_master_recv(struct i2c_client *client, char *buf ,int count) @@ -639,31 +628,18 @@ int i2c_master_recv(struct i2c_client *client, char *buf ,int count) struct i2c_adapter *adap=client->adapter; struct i2c_msg msg; int ret; - if (client->adapter->algo->master_xfer) { - msg.addr = client->addr; - msg.flags = client->flags & I2C_M_TEN; - msg.flags |= I2C_M_RD; - msg.len = count; - msg.buf = buf; - - dev_dbg(&client->adapter->dev, "master_recv: reading %d bytes.\n", - count); - - down(&adap->bus_lock); - ret = adap->algo->master_xfer(adap,&msg,1); - up(&adap->bus_lock); - - dev_dbg(&client->adapter->dev, "master_recv: return:%d (count:%d, addr:0x%02x)\n", - ret, count, client->addr); - - /* if everything went ok (i.e. 1 msg transmitted), return #bytes - * transmitted, else error code. - */ - return (ret == 1 )? count : ret; - } else { - dev_err(&client->adapter->dev, "I2C level transfers not supported\n"); - return -ENOSYS; - } + + msg.addr = client->addr; + msg.flags = client->flags & I2C_M_TEN; + msg.flags |= I2C_M_RD; + msg.len = count; + msg.buf = buf; + + ret = i2c_transfer(adap, &msg, 1); + + /* If everything went ok (i.e. 1 msg transmitted), return #bytes + transmitted, else error code. */ + return (ret == 1) ? count : ret; } |