forked from Minki/linux
[media] lirc_zilog: Split struct IR into structs IR, IR_tx, and IR_rx
This change is a mostly mechanical break of the main struct IR data structure into common, Rx, and Tx structures. There were some small logical changes required as well, such as eliminating "is_hdpvr", to accomplish this. This change is an intiial step in reworking lirc_zilog to decouple the Rx and Tx handling as much as possible to fit with the new I2C binding model. This change actually makes lirc_zilog a little more broken than it already was - memory deallocation in particular got worse. However, this change makes the remaining problems easier to see and address. Signed-off-by: Andy Walls <awalls@md.metrocast.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Andy Walls
Mauro Carvalho Chehab
parent
02fcaaa3a5
commit
06da95a3ec
@ -60,17 +60,9 @@
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#include <media/lirc_dev.h>
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#include <media/lirc.h>
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struct IR {
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struct lirc_driver l;
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/* Device info */
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struct mutex ir_lock;
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int open;
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bool is_hdpvr;
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struct IR_rx {
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/* RX device */
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struct i2c_client c_rx;
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int have_rx;
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/* RX device buffer & lock */
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struct lirc_buffer buf;
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@ -84,11 +76,26 @@ struct IR {
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/* RX read data */
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unsigned char b[3];
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bool hdpvr_data_fmt;
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};
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struct IR_tx {
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/* TX device */
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struct i2c_client c_tx;
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/* TX additional actions needed */
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int need_boot;
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int have_tx;
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bool post_tx_ready_poll;
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};
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struct IR {
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struct lirc_driver l;
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struct mutex ir_lock;
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int open;
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struct IR_rx *rx;
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struct IR_tx *tx;
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};
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/* Minor -> data mapping */
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@ -149,8 +156,12 @@ static int add_to_buf(struct IR *ir)
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int ret;
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int failures = 0;
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unsigned char sendbuf[1] = { 0 };
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struct IR_rx *rx = ir->rx;
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if (lirc_buffer_full(&ir->buf)) {
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if (rx == NULL)
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return -ENXIO;
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if (lirc_buffer_full(&rx->buf)) {
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dprintk("buffer overflow\n");
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return -EOVERFLOW;
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}
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@ -170,7 +181,7 @@ static int add_to_buf(struct IR *ir)
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* Send random "poll command" (?) Windows driver does this
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* and it is a good point to detect chip failure.
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*/
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ret = i2c_master_send(&ir->c_rx, sendbuf, 1);
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ret = i2c_master_send(&rx->c_rx, sendbuf, 1);
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if (ret != 1) {
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zilog_error("i2c_master_send failed with %d\n", ret);
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if (failures >= 3) {
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@ -186,44 +197,45 @@ static int add_to_buf(struct IR *ir)
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set_current_state(TASK_UNINTERRUPTIBLE);
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schedule_timeout((100 * HZ + 999) / 1000);
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ir->need_boot = 1;
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if (ir->tx != NULL)
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ir->tx->need_boot = 1;
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++failures;
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mutex_unlock(&ir->ir_lock);
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continue;
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}
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ret = i2c_master_recv(&ir->c_rx, keybuf, sizeof(keybuf));
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ret = i2c_master_recv(&rx->c_rx, keybuf, sizeof(keybuf));
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mutex_unlock(&ir->ir_lock);
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if (ret != sizeof(keybuf)) {
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zilog_error("i2c_master_recv failed with %d -- "
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"keeping last read buffer\n", ret);
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} else {
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ir->b[0] = keybuf[3];
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ir->b[1] = keybuf[4];
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ir->b[2] = keybuf[5];
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dprintk("key (0x%02x/0x%02x)\n", ir->b[0], ir->b[1]);
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rx->b[0] = keybuf[3];
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rx->b[1] = keybuf[4];
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rx->b[2] = keybuf[5];
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dprintk("key (0x%02x/0x%02x)\n", rx->b[0], rx->b[1]);
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}
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/* key pressed ? */
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if (ir->is_hdpvr) {
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if (rx->hdpvr_data_fmt) {
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if (got_data && (keybuf[0] == 0x80))
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return 0;
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else if (got_data && (keybuf[0] == 0x00))
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return -ENODATA;
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} else if ((ir->b[0] & 0x80) == 0)
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} else if ((rx->b[0] & 0x80) == 0)
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return got_data ? 0 : -ENODATA;
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/* look what we have */
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code = (((__u16)ir->b[0] & 0x7f) << 6) | (ir->b[1] >> 2);
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code = (((__u16)rx->b[0] & 0x7f) << 6) | (rx->b[1] >> 2);
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codes[0] = (code >> 8) & 0xff;
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codes[1] = code & 0xff;
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/* return it */
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lirc_buffer_write(&ir->buf, codes);
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lirc_buffer_write(&rx->buf, codes);
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++got_data;
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} while (!lirc_buffer_full(&ir->buf));
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} while (!lirc_buffer_full(&rx->buf));
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return 0;
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}
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@ -241,9 +253,13 @@ static int add_to_buf(struct IR *ir)
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static int lirc_thread(void *arg)
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{
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struct IR *ir = arg;
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struct IR_rx *rx = ir->rx;
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if (ir->t_notify != NULL)
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complete(ir->t_notify);
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if (rx == NULL)
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return -ENXIO;
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if (rx->t_notify != NULL)
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complete(rx->t_notify);
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dprintk("poll thread started\n");
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@ -264,23 +280,23 @@ static int lirc_thread(void *arg)
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* lost keypresses.
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*/
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schedule_timeout((260 * HZ) / 1000);
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if (ir->shutdown)
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if (rx->shutdown)
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break;
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if (!add_to_buf(ir))
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wake_up_interruptible(&ir->buf.wait_poll);
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wake_up_interruptible(&rx->buf.wait_poll);
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} else {
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/* if device not opened so we can sleep half a second */
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set_current_state(TASK_INTERRUPTIBLE);
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schedule_timeout(HZ/2);
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}
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} while (!ir->shutdown);
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} while (!rx->shutdown);
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if (ir->t_notify2 != NULL)
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wait_for_completion(ir->t_notify2);
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if (rx->t_notify2 != NULL)
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wait_for_completion(rx->t_notify2);
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ir->task = NULL;
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if (ir->t_notify != NULL)
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complete(ir->t_notify);
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rx->task = NULL;
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if (rx->t_notify != NULL)
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complete(rx->t_notify);
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dprintk("poll thread ended\n");
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return 0;
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@ -298,10 +314,10 @@ static int set_use_inc(void *data)
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* this is completely broken code. lirc_unregister_driver()
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* must be possible even when the device is open
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*/
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if (ir->c_rx.addr)
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i2c_use_client(&ir->c_rx);
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if (ir->c_tx.addr)
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i2c_use_client(&ir->c_tx);
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if (ir->rx != NULL)
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i2c_use_client(&ir->rx->c_rx);
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if (ir->tx != NULL)
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i2c_use_client(&ir->tx->c_tx);
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return 0;
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}
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@ -310,10 +326,10 @@ static void set_use_dec(void *data)
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{
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struct IR *ir = data;
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if (ir->c_rx.addr)
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i2c_release_client(&ir->c_rx);
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if (ir->c_tx.addr)
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i2c_release_client(&ir->c_tx);
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if (ir->rx)
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i2c_release_client(&ir->rx->c_rx);
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if (ir->tx)
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i2c_release_client(&ir->tx->c_tx);
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if (ir->l.owner != NULL)
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module_put(ir->l.owner);
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}
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@ -452,7 +468,7 @@ corrupt:
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}
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/* send a block of data to the IR TX device */
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static int send_data_block(struct IR *ir, unsigned char *data_block)
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static int send_data_block(struct IR_tx *tx, unsigned char *data_block)
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{
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int i, j, ret;
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unsigned char buf[5];
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@ -466,7 +482,7 @@ static int send_data_block(struct IR *ir, unsigned char *data_block)
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buf[1 + j] = data_block[i + j];
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dprintk("%02x %02x %02x %02x %02x",
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buf[0], buf[1], buf[2], buf[3], buf[4]);
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ret = i2c_master_send(&ir->c_tx, buf, tosend + 1);
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ret = i2c_master_send(&tx->c_tx, buf, tosend + 1);
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if (ret != tosend + 1) {
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zilog_error("i2c_master_send failed with %d\n", ret);
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return ret < 0 ? ret : -EFAULT;
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@ -477,32 +493,32 @@ static int send_data_block(struct IR *ir, unsigned char *data_block)
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}
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/* send boot data to the IR TX device */
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static int send_boot_data(struct IR *ir)
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static int send_boot_data(struct IR_tx *tx)
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{
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int ret;
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unsigned char buf[4];
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/* send the boot block */
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ret = send_data_block(ir, tx_data->boot_data);
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ret = send_data_block(tx, tx_data->boot_data);
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if (ret != 0)
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return ret;
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/* kick it off? */
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buf[0] = 0x00;
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buf[1] = 0x20;
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ret = i2c_master_send(&ir->c_tx, buf, 2);
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ret = i2c_master_send(&tx->c_tx, buf, 2);
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if (ret != 2) {
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zilog_error("i2c_master_send failed with %d\n", ret);
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return ret < 0 ? ret : -EFAULT;
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}
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ret = i2c_master_send(&ir->c_tx, buf, 1);
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ret = i2c_master_send(&tx->c_tx, buf, 1);
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if (ret != 1) {
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zilog_error("i2c_master_send failed with %d\n", ret);
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return ret < 0 ? ret : -EFAULT;
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}
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/* Here comes the firmware version... (hopefully) */
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ret = i2c_master_recv(&ir->c_tx, buf, 4);
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ret = i2c_master_recv(&tx->c_tx, buf, 4);
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if (ret != 4) {
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zilog_error("i2c_master_recv failed with %d\n", ret);
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return 0;
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@ -542,7 +558,7 @@ static void fw_unload(void)
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}
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/* load "firmware" for the IR TX device */
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static int fw_load(struct IR *ir)
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static int fw_load(struct IR_tx *tx)
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{
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int ret;
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unsigned int i;
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@ -557,7 +573,7 @@ static int fw_load(struct IR *ir)
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}
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/* Request codeset data file */
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ret = request_firmware(&fw_entry, "haup-ir-blaster.bin", &ir->c_tx.dev);
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ret = request_firmware(&fw_entry, "haup-ir-blaster.bin", &tx->c_tx.dev);
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if (ret != 0) {
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zilog_error("firmware haup-ir-blaster.bin not available "
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"(%d)\n", ret);
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@ -684,20 +700,20 @@ out:
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}
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/* initialise the IR TX device */
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static int tx_init(struct IR *ir)
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static int tx_init(struct IR_tx *tx)
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{
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int ret;
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/* Load 'firmware' */
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ret = fw_load(ir);
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ret = fw_load(tx);
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if (ret != 0)
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return ret;
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/* Send boot block */
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ret = send_boot_data(ir);
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ret = send_boot_data(tx);
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if (ret != 0)
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return ret;
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ir->need_boot = 0;
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tx->need_boot = 0;
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/* Looks good */
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return 0;
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@ -713,20 +729,20 @@ static loff_t lseek(struct file *filep, loff_t offset, int orig)
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static ssize_t read(struct file *filep, char *outbuf, size_t n, loff_t *ppos)
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{
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struct IR *ir = filep->private_data;
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unsigned char buf[ir->buf.chunk_size];
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struct IR_rx *rx = ir->rx;
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int ret = 0, written = 0;
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DECLARE_WAITQUEUE(wait, current);
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dprintk("read called\n");
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if (ir->c_rx.addr == 0)
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if (rx == NULL)
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return -ENODEV;
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if (mutex_lock_interruptible(&ir->buf_lock))
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if (mutex_lock_interruptible(&rx->buf_lock))
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return -ERESTARTSYS;
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if (n % ir->buf.chunk_size) {
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if (n % rx->buf.chunk_size) {
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dprintk("read result = -EINVAL\n");
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mutex_unlock(&ir->buf_lock);
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mutex_unlock(&rx->buf_lock);
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return -EINVAL;
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}
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@ -735,7 +751,7 @@ static ssize_t read(struct file *filep, char *outbuf, size_t n, loff_t *ppos)
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* to avoid losing scan code (in case when queue is awaken somewhere
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* between while condition checking and scheduling)
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*/
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add_wait_queue(&ir->buf.wait_poll, &wait);
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add_wait_queue(&rx->buf.wait_poll, &wait);
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set_current_state(TASK_INTERRUPTIBLE);
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/*
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@ -743,7 +759,7 @@ static ssize_t read(struct file *filep, char *outbuf, size_t n, loff_t *ppos)
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* mode and 'copy_to_user' is happy, wait for data.
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*/
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while (written < n && ret == 0) {
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if (lirc_buffer_empty(&ir->buf)) {
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if (lirc_buffer_empty(&rx->buf)) {
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/*
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* According to the read(2) man page, 'written' can be
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* returned as less than 'n', instead of blocking
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@ -763,16 +779,17 @@ static ssize_t read(struct file *filep, char *outbuf, size_t n, loff_t *ppos)
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schedule();
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set_current_state(TASK_INTERRUPTIBLE);
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} else {
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lirc_buffer_read(&ir->buf, buf);
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unsigned char buf[rx->buf.chunk_size];
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lirc_buffer_read(&rx->buf, buf);
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ret = copy_to_user((void *)outbuf+written, buf,
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ir->buf.chunk_size);
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written += ir->buf.chunk_size;
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rx->buf.chunk_size);
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written += rx->buf.chunk_size;
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}
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}
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remove_wait_queue(&ir->buf.wait_poll, &wait);
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remove_wait_queue(&rx->buf.wait_poll, &wait);
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set_current_state(TASK_RUNNING);
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mutex_unlock(&ir->buf_lock);
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mutex_unlock(&rx->buf_lock);
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dprintk("read result = %s (%d)\n",
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ret ? "-EFAULT" : "OK", ret);
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@ -781,7 +798,7 @@ static ssize_t read(struct file *filep, char *outbuf, size_t n, loff_t *ppos)
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}
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/* send a keypress to the IR TX device */
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static int send_code(struct IR *ir, unsigned int code, unsigned int key)
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static int send_code(struct IR_tx *tx, unsigned int code, unsigned int key)
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{
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unsigned char data_block[TX_BLOCK_SIZE];
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unsigned char buf[2];
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@ -798,26 +815,26 @@ static int send_code(struct IR *ir, unsigned int code, unsigned int key)
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return ret;
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/* Send the data block */
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ret = send_data_block(ir, data_block);
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ret = send_data_block(tx, data_block);
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if (ret != 0)
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return ret;
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/* Send data block length? */
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buf[0] = 0x00;
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buf[1] = 0x40;
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ret = i2c_master_send(&ir->c_tx, buf, 2);
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ret = i2c_master_send(&tx->c_tx, buf, 2);
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if (ret != 2) {
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zilog_error("i2c_master_send failed with %d\n", ret);
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return ret < 0 ? ret : -EFAULT;
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}
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ret = i2c_master_send(&ir->c_tx, buf, 1);
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ret = i2c_master_send(&tx->c_tx, buf, 1);
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if (ret != 1) {
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zilog_error("i2c_master_send failed with %d\n", ret);
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return ret < 0 ? ret : -EFAULT;
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}
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/* Send finished download? */
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ret = i2c_master_recv(&ir->c_tx, buf, 1);
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ret = i2c_master_recv(&tx->c_tx, buf, 1);
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if (ret != 1) {
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zilog_error("i2c_master_recv failed with %d\n", ret);
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return ret < 0 ? ret : -EFAULT;
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@ -831,7 +848,7 @@ static int send_code(struct IR *ir, unsigned int code, unsigned int key)
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/* Send prepare command? */
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buf[0] = 0x00;
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buf[1] = 0x80;
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ret = i2c_master_send(&ir->c_tx, buf, 2);
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ret = i2c_master_send(&tx->c_tx, buf, 2);
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if (ret != 2) {
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zilog_error("i2c_master_send failed with %d\n", ret);
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return ret < 0 ? ret : -EFAULT;
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@ -842,7 +859,7 @@ static int send_code(struct IR *ir, unsigned int code, unsigned int key)
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* last i2c_master_recv always fails with a -5, so for now, we're
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* going to skip this whole mess and say we're done on the HD PVR
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*/
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if (ir->is_hdpvr) {
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if (!tx->post_tx_ready_poll) {
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dprintk("sent code %u, key %u\n", code, key);
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return 0;
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}
|
||||
@ -856,7 +873,7 @@ static int send_code(struct IR *ir, unsigned int code, unsigned int key)
|
||||
for (i = 0; i < 20; ++i) {
|
||||
set_current_state(TASK_UNINTERRUPTIBLE);
|
||||
schedule_timeout((50 * HZ + 999) / 1000);
|
||||
ret = i2c_master_send(&ir->c_tx, buf, 1);
|
||||
ret = i2c_master_send(&tx->c_tx, buf, 1);
|
||||
if (ret == 1)
|
||||
break;
|
||||
dprintk("NAK expected: i2c_master_send "
|
||||
@ -869,7 +886,7 @@ static int send_code(struct IR *ir, unsigned int code, unsigned int key)
|
||||
}
|
||||
|
||||
/* Seems to be an 'ok' response */
|
||||
i = i2c_master_recv(&ir->c_tx, buf, 1);
|
||||
i = i2c_master_recv(&tx->c_tx, buf, 1);
|
||||
if (i != 1) {
|
||||
zilog_error("i2c_master_recv failed with %d\n", ret);
|
||||
return -EFAULT;
|
||||
@ -894,10 +911,11 @@ static ssize_t write(struct file *filep, const char *buf, size_t n,
|
||||
loff_t *ppos)
|
||||
{
|
||||
struct IR *ir = filep->private_data;
|
||||
struct IR_tx *tx = ir->tx;
|
||||
size_t i;
|
||||
int failures = 0;
|
||||
|
||||
if (ir->c_tx.addr == 0)
|
||||
if (tx == NULL)
|
||||
return -ENODEV;
|
||||
|
||||
/* Validate user parameters */
|
||||
@ -918,15 +936,15 @@ static ssize_t write(struct file *filep, const char *buf, size_t n,
|
||||
}
|
||||
|
||||
/* Send boot data first if required */
|
||||
if (ir->need_boot == 1) {
|
||||
ret = send_boot_data(ir);
|
||||
if (tx->need_boot == 1) {
|
||||
ret = send_boot_data(tx);
|
||||
if (ret == 0)
|
||||
ir->need_boot = 0;
|
||||
tx->need_boot = 0;
|
||||
}
|
||||
|
||||
/* Send the code */
|
||||
if (ret == 0) {
|
||||
ret = send_code(ir, (unsigned)command >> 16,
|
||||
ret = send_code(tx, (unsigned)command >> 16,
|
||||
(unsigned)command & 0xFFFF);
|
||||
if (ret == -EPROTO) {
|
||||
mutex_unlock(&ir->ir_lock);
|
||||
@ -951,7 +969,7 @@ static ssize_t write(struct file *filep, const char *buf, size_t n,
|
||||
}
|
||||
set_current_state(TASK_UNINTERRUPTIBLE);
|
||||
schedule_timeout((100 * HZ + 999) / 1000);
|
||||
ir->need_boot = 1;
|
||||
tx->need_boot = 1;
|
||||
++failures;
|
||||
} else
|
||||
i += sizeof(int);
|
||||
@ -968,22 +986,23 @@ static ssize_t write(struct file *filep, const char *buf, size_t n,
|
||||
static unsigned int poll(struct file *filep, poll_table *wait)
|
||||
{
|
||||
struct IR *ir = filep->private_data;
|
||||
struct IR_rx *rx = ir->rx;
|
||||
unsigned int ret;
|
||||
|
||||
dprintk("poll called\n");
|
||||
if (ir->c_rx.addr == 0)
|
||||
if (rx == NULL)
|
||||
return -ENODEV;
|
||||
|
||||
mutex_lock(&ir->buf_lock);
|
||||
mutex_lock(&rx->buf_lock);
|
||||
|
||||
poll_wait(filep, &ir->buf.wait_poll, wait);
|
||||
poll_wait(filep, &rx->buf.wait_poll, wait);
|
||||
|
||||
dprintk("poll result = %s\n",
|
||||
lirc_buffer_empty(&ir->buf) ? "0" : "POLLIN|POLLRDNORM");
|
||||
lirc_buffer_empty(&rx->buf) ? "0" : "POLLIN|POLLRDNORM");
|
||||
|
||||
ret = lirc_buffer_empty(&ir->buf) ? 0 : (POLLIN|POLLRDNORM);
|
||||
ret = lirc_buffer_empty(&rx->buf) ? 0 : (POLLIN|POLLRDNORM);
|
||||
|
||||
mutex_unlock(&ir->buf_lock);
|
||||
mutex_unlock(&rx->buf_lock);
|
||||
return ret;
|
||||
}
|
||||
|
||||
@ -993,9 +1012,9 @@ static long ioctl(struct file *filep, unsigned int cmd, unsigned long arg)
|
||||
int result;
|
||||
unsigned long mode, features = 0;
|
||||
|
||||
if (ir->c_rx.addr != 0)
|
||||
if (ir->rx != NULL)
|
||||
features |= LIRC_CAN_REC_LIRCCODE;
|
||||
if (ir->c_tx.addr != 0)
|
||||
if (ir->tx != NULL)
|
||||
features |= LIRC_CAN_SEND_PULSE;
|
||||
|
||||
switch (cmd) {
|
||||
@ -1146,23 +1165,26 @@ static const struct file_operations lirc_fops = {
|
||||
static int ir_remove(struct i2c_client *client)
|
||||
{
|
||||
struct IR *ir = i2c_get_clientdata(client);
|
||||
struct IR_rx *rx = ir->rx;
|
||||
struct IR_tx *tx = ir->tx;
|
||||
|
||||
/* FIXME make tx, rx senitive */
|
||||
mutex_lock(&ir->ir_lock);
|
||||
|
||||
if (ir->have_rx || ir->have_tx) {
|
||||
if (rx != NULL || tx != NULL) {
|
||||
DECLARE_COMPLETION(tn);
|
||||
DECLARE_COMPLETION(tn2);
|
||||
|
||||
/* end up polling thread */
|
||||
if (ir->task && !IS_ERR(ir->task)) {
|
||||
ir->t_notify = &tn;
|
||||
ir->t_notify2 = &tn2;
|
||||
ir->shutdown = 1;
|
||||
wake_up_process(ir->task);
|
||||
if (rx->task && !IS_ERR(rx->task)) {
|
||||
rx->t_notify = &tn;
|
||||
rx->t_notify2 = &tn2;
|
||||
rx->shutdown = 1;
|
||||
wake_up_process(rx->task);
|
||||
complete(&tn2);
|
||||
wait_for_completion(&tn);
|
||||
ir->t_notify = NULL;
|
||||
ir->t_notify2 = NULL;
|
||||
rx->t_notify = NULL;
|
||||
rx->t_notify2 = NULL;
|
||||
}
|
||||
|
||||
} else {
|
||||
@ -1173,13 +1195,15 @@ static int ir_remove(struct i2c_client *client)
|
||||
}
|
||||
|
||||
/* unregister lirc driver */
|
||||
/* FIXME make tx, rx senitive */
|
||||
if (ir->l.minor >= 0 && ir->l.minor < MAX_IRCTL_DEVICES) {
|
||||
lirc_unregister_driver(ir->l.minor);
|
||||
ir_devices[ir->l.minor] = NULL;
|
||||
}
|
||||
|
||||
/* free memory */
|
||||
lirc_buffer_free(&ir->buf);
|
||||
/* FIXME make tx, rx senitive */
|
||||
lirc_buffer_free(&rx->buf);
|
||||
mutex_unlock(&ir->ir_lock);
|
||||
kfree(ir);
|
||||
|
||||
@ -1240,18 +1264,37 @@ static int ir_probe(struct i2c_client *client, const struct i2c_device_id *id)
|
||||
have_rx ? "RX only" : "TX only");
|
||||
|
||||
ir = kzalloc(sizeof(struct IR), GFP_KERNEL);
|
||||
|
||||
if (!ir)
|
||||
goto out_nomem;
|
||||
|
||||
ret = lirc_buffer_init(&ir->buf, 2, BUFLEN / 2);
|
||||
if (ret)
|
||||
goto out_nomem;
|
||||
if (have_tx) {
|
||||
ir->tx = kzalloc(sizeof(struct IR_tx), GFP_KERNEL);
|
||||
if (ir->tx != NULL) {
|
||||
ir->tx->need_boot = 1;
|
||||
ir->tx->post_tx_ready_poll =
|
||||
(id->driver_data & ID_FLAG_HDPVR) ? false : true;
|
||||
}
|
||||
}
|
||||
|
||||
if (have_rx) {
|
||||
ir->rx = kzalloc(sizeof(struct IR_rx), GFP_KERNEL);
|
||||
|
||||
if (ir->rx == NULL) {
|
||||
ret = -ENOMEM;
|
||||
} else {
|
||||
ir->rx->hdpvr_data_fmt =
|
||||
(id->driver_data & ID_FLAG_HDPVR) ? true : false;
|
||||
mutex_init(&ir->rx->buf_lock);
|
||||
ret = lirc_buffer_init(&ir->rx->buf, 2, BUFLEN / 2);
|
||||
}
|
||||
|
||||
if (ret && (ir->rx != NULL)) {
|
||||
kfree(ir->rx);
|
||||
ir->rx = NULL;
|
||||
}
|
||||
}
|
||||
|
||||
mutex_init(&ir->ir_lock);
|
||||
mutex_init(&ir->buf_lock);
|
||||
ir->need_boot = 1;
|
||||
ir->is_hdpvr = (id->driver_data & ID_FLAG_HDPVR) ? true : false;
|
||||
|
||||
memcpy(&ir->l, &lirc_template, sizeof(struct lirc_driver));
|
||||
ir->l.minor = -1;
|
||||
@ -1260,40 +1303,38 @@ static int ir_probe(struct i2c_client *client, const struct i2c_device_id *id)
|
||||
i2c_set_clientdata(client, ir);
|
||||
|
||||
/* initialise RX device */
|
||||
if (have_rx) {
|
||||
if (ir->rx != NULL) {
|
||||
DECLARE_COMPLETION(tn);
|
||||
memcpy(&ir->c_rx, client, sizeof(struct i2c_client));
|
||||
memcpy(&ir->rx->c_rx, client, sizeof(struct i2c_client));
|
||||
|
||||
ir->c_rx.addr = 0x71;
|
||||
strlcpy(ir->c_rx.name, ZILOG_HAUPPAUGE_IR_RX_NAME,
|
||||
ir->rx->c_rx.addr = 0x71;
|
||||
strlcpy(ir->rx->c_rx.name, ZILOG_HAUPPAUGE_IR_RX_NAME,
|
||||
I2C_NAME_SIZE);
|
||||
|
||||
/* try to fire up polling thread */
|
||||
ir->t_notify = &tn;
|
||||
ir->task = kthread_run(lirc_thread, ir, "lirc_zilog");
|
||||
if (IS_ERR(ir->task)) {
|
||||
ret = PTR_ERR(ir->task);
|
||||
ir->rx->t_notify = &tn;
|
||||
ir->rx->task = kthread_run(lirc_thread, ir, "lirc_zilog");
|
||||
if (IS_ERR(ir->rx->task)) {
|
||||
ret = PTR_ERR(ir->rx->task);
|
||||
zilog_error("lirc_register_driver: cannot run "
|
||||
"poll thread %d\n", ret);
|
||||
goto err;
|
||||
}
|
||||
wait_for_completion(&tn);
|
||||
ir->t_notify = NULL;
|
||||
ir->have_rx = 1;
|
||||
ir->rx->t_notify = NULL;
|
||||
}
|
||||
|
||||
/* initialise TX device */
|
||||
if (have_tx) {
|
||||
memcpy(&ir->c_tx, client, sizeof(struct i2c_client));
|
||||
ir->c_tx.addr = 0x70;
|
||||
strlcpy(ir->c_tx.name, ZILOG_HAUPPAUGE_IR_TX_NAME,
|
||||
if (ir->tx) {
|
||||
memcpy(&ir->tx->c_tx, client, sizeof(struct i2c_client));
|
||||
ir->tx->c_tx.addr = 0x70;
|
||||
strlcpy(ir->tx->c_tx.name, ZILOG_HAUPPAUGE_IR_TX_NAME,
|
||||
I2C_NAME_SIZE);
|
||||
ir->have_tx = 1;
|
||||
}
|
||||
|
||||
/* set lirc_dev stuff */
|
||||
ir->l.code_length = 13;
|
||||
ir->l.rbuf = &ir->buf;
|
||||
ir->l.rbuf = (ir->rx == NULL) ? NULL : &ir->rx->buf;
|
||||
ir->l.fops = &lirc_fops;
|
||||
ir->l.data = ir;
|
||||
ir->l.minor = minor;
|
||||
@ -1317,9 +1358,9 @@ static int ir_probe(struct i2c_client *client, const struct i2c_device_id *id)
|
||||
* after registering with lirc as otherwise hotplug seems to take
|
||||
* 10s to create the lirc device.
|
||||
*/
|
||||
if (have_tx) {
|
||||
if (ir->tx != NULL) {
|
||||
/* Special TX init */
|
||||
ret = tx_init(ir);
|
||||
ret = tx_init(ir->tx);
|
||||
if (ret != 0)
|
||||
goto err;
|
||||
}
|
||||
@ -1327,18 +1368,21 @@ static int ir_probe(struct i2c_client *client, const struct i2c_device_id *id)
|
||||
return 0;
|
||||
|
||||
err:
|
||||
/* FIXME - memory deallocation for all error cases needs work */
|
||||
/* undo everything, hopefully... */
|
||||
if (ir->c_rx.addr)
|
||||
ir_remove(&ir->c_rx);
|
||||
if (ir->c_tx.addr)
|
||||
ir_remove(&ir->c_tx);
|
||||
if (ir->rx != NULL)
|
||||
ir_remove(&ir->rx->c_rx);
|
||||
if (ir->tx != NULL)
|
||||
ir_remove(&ir->tx->c_tx);
|
||||
return ret;
|
||||
|
||||
out_nodev:
|
||||
/* FIXME - memory deallocation for all error cases needs work */
|
||||
zilog_error("no device found\n");
|
||||
return -ENODEV;
|
||||
|
||||
out_nomem:
|
||||
/* FIXME - memory deallocation for all error cases needs work */
|
||||
zilog_error("memory allocation failure\n");
|
||||
kfree(ir);
|
||||
return -ENOMEM;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user