/*
* packet info function
*/
+static int usbhsf_null_handle(struct usbhs_pkt *pkt, int *is_done)
+{
+ struct usbhs_priv *priv = usbhs_pipe_to_priv(pkt->pipe);
+ struct device *dev = usbhs_priv_to_dev(priv);
+
+ dev_err(dev, "null handler\n");
+
+ return -EINVAL;
+}
+
+static struct usbhs_pkt_handle usbhsf_null_handler = {
+ .prepare = usbhsf_null_handle,
+ .try_run = usbhsf_null_handle,
+};
+
void usbhs_pkt_init(struct usbhs_pkt *pkt)
{
INIT_LIST_HEAD(&pkt->node);
}
void usbhs_pkt_push(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt,
+ struct usbhs_pkt_handle *handler,
void *buf, int len, int zero)
{
+ struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
+ struct device *dev = usbhs_priv_to_dev(priv);
+ unsigned long flags;
+
+ /******************** spin lock ********************/
+ usbhs_lock(priv, flags);
+
+ if (!handler) {
+ dev_err(dev, "no handler function\n");
+ handler = &usbhsf_null_handler;
+ }
+
list_del_init(&pkt->node);
list_add_tail(&pkt->node, &pipe->list);
pkt->pipe = pipe;
pkt->buf = buf;
+ pkt->handler = handler;
pkt->length = len;
pkt->zero = zero;
pkt->actual = 0;
+
+ usbhs_unlock(priv, flags);
+ /******************** spin unlock ******************/
}
-void usbhs_pkt_pop(struct usbhs_pkt *pkt)
+static void __usbhsf_pkt_del(struct usbhs_pkt *pkt)
{
list_del_init(&pkt->node);
}
-struct usbhs_pkt *usbhs_pkt_get(struct usbhs_pipe *pipe)
+static struct usbhs_pkt *__usbhsf_pkt_get(struct usbhs_pipe *pipe)
{
if (list_empty(&pipe->list))
return NULL;
return list_entry(pipe->list.next, struct usbhs_pkt, node);
}
+struct usbhs_pkt *usbhs_pkt_pop(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt)
+{
+ struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
+ unsigned long flags;
+
+ /******************** spin lock ********************/
+ usbhs_lock(priv, flags);
+
+ if (!pkt)
+ pkt = __usbhsf_pkt_get(pipe);
+
+ if (pkt)
+ __usbhsf_pkt_del(pkt);
+
+ usbhs_unlock(priv, flags);
+ /******************** spin unlock ******************/
+
+ return pkt;
+}
+
+int __usbhs_pkt_handler(struct usbhs_pipe *pipe, int type)
+{
+ struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
+ struct usbhs_pipe_info *info = usbhs_priv_to_pipeinfo(priv);
+ struct usbhs_pkt *pkt;
+ struct device *dev = usbhs_priv_to_dev(priv);
+ int (*func)(struct usbhs_pkt *pkt, int *is_done);
+ unsigned long flags;
+ int ret = 0;
+ int is_done = 0;
+
+ /******************** spin lock ********************/
+ usbhs_lock(priv, flags);
+
+ pkt = __usbhsf_pkt_get(pipe);
+ if (!pkt)
+ goto __usbhs_pkt_handler_end;
+
+ switch (type) {
+ case USBHSF_PKT_PREPARE:
+ func = pkt->handler->prepare;
+ break;
+ case USBHSF_PKT_TRY_RUN:
+ func = pkt->handler->try_run;
+ break;
+ default:
+ dev_err(dev, "unknown pkt hander\n");
+ goto __usbhs_pkt_handler_end;
+ }
+
+ ret = func(pkt, &is_done);
+
+ if (is_done)
+ __usbhsf_pkt_del(pkt);
+
+__usbhs_pkt_handler_end:
+ usbhs_unlock(priv, flags);
+ /******************** spin unlock ******************/
+
+ if (is_done)
+ info->done(pkt);
+
+ return ret;
+}
+
/*
* irq enable/disable function
*/
/*
* PIO fifo functions
*/
-int usbhs_fifo_prepare_write(struct usbhs_pipe *pipe)
-{
- return usbhsf_fifo_select(pipe, 1);
-}
-
-int usbhs_fifo_write(struct usbhs_pkt *pkt)
+static int usbhsf_try_push(struct usbhs_pkt *pkt, int *is_done)
{
struct usbhs_pipe *pipe = pkt->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);
void __iomem *addr = priv->base + CFIFO;
u8 *buf;
int maxp = usbhs_pipe_get_maxpacket(pipe);
int total_len;
int i, ret, len;
- int is_short, is_done;
+ int is_short;
- ret = usbhs_pipe_is_accessible(pipe);
+ ret = usbhsf_fifo_select(pipe, 1);
if (ret < 0)
goto usbhs_fifo_write_busy;
- ret = usbhsf_fifo_select(pipe, 1);
+ ret = usbhs_pipe_is_accessible(pipe);
if (ret < 0)
goto usbhs_fifo_write_busy;
pkt->actual += total_len;
if (pkt->actual < pkt->length)
- is_done = 0; /* there are remainder data */
+ *is_done = 0; /* there are remainder data */
else if (is_short)
- is_done = 1; /* short packet */
+ *is_done = 1; /* short packet */
else
- is_done = !pkt->zero; /* send zero packet ? */
+ *is_done = !pkt->zero; /* send zero packet ? */
/*
* pipe/irq handling
if (is_short)
usbhsf_send_terminator(pipe);
- usbhsf_tx_irq_ctrl(pipe, !is_done);
+ usbhsf_tx_irq_ctrl(pipe, !*is_done);
usbhs_pipe_enable(pipe);
dev_dbg(dev, " send %d (%d/ %d/ %d/ %d)\n",
usbhs_pipe_number(pipe),
- pkt->length, pkt->actual, is_done, pkt->zero);
+ pkt->length, pkt->actual, *is_done, pkt->zero);
/*
* Transmission end
*/
- if (is_done) {
+ if (*is_done) {
if (usbhs_pipe_is_dcp(pipe))
usbhs_dcp_control_transfer_done(pipe);
-
- if (info->tx_done)
- info->tx_done(pkt);
}
return 0;
return ret;
}
-int usbhs_fifo_prepare_read(struct usbhs_pipe *pipe)
+struct usbhs_pkt_handle usbhs_fifo_push_handler = {
+ .prepare = usbhsf_try_push,
+ .try_run = usbhsf_try_push,
+};
+
+static int usbhsf_prepare_pop(struct usbhs_pkt *pkt, int *is_done)
{
+ struct usbhs_pipe *pipe = pkt->pipe;
int ret;
/*
return ret;
}
-int usbhs_fifo_read(struct usbhs_pkt *pkt)
+static int usbhsf_try_pop(struct usbhs_pkt *pkt, int *is_done)
{
struct usbhs_pipe *pipe = pkt->pipe;
struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
int rcv_len, len;
int i, ret;
int total_len = 0;
- int is_done = 0;
ret = usbhsf_fifo_select(pipe, 0);
if (ret < 0)
usbhs_fifo_read_end:
if ((pkt->actual == pkt->length) || /* receive all data */
- (total_len < maxp)) /* short packet */
- is_done = 1;
+ (total_len < maxp)) { /* short packet */
+ *is_done = 1;
+ usbhsf_rx_irq_ctrl(pipe, 0);
+ usbhs_pipe_disable(pipe);
+ }
dev_dbg(dev, " recv %d (%d/ %d/ %d/ %d)\n",
usbhs_pipe_number(pipe),
- pkt->length, pkt->actual, is_done, pkt->zero);
+ pkt->length, pkt->actual, *is_done, pkt->zero);
- if (is_done) {
- struct usbhs_pipe_info *info = usbhs_priv_to_pipeinfo(priv);
+ return 0;
+}
- usbhsf_rx_irq_ctrl(pipe, 0);
- usbhs_pipe_disable(pipe);
+struct usbhs_pkt_handle usbhs_fifo_pop_handler = {
+ .prepare = usbhsf_prepare_pop,
+ .try_run = usbhsf_try_pop,
+};
+
+/*
+ * handler function
+ */
+static int usbhsf_ctrl_stage_end(struct usbhs_pkt *pkt, int *is_done)
+{
+ usbhs_dcp_control_transfer_done(pkt->pipe);
+
+ *is_done = 1;
+
+ return 0;
+}
+
+struct usbhs_pkt_handle usbhs_ctrl_stage_end_handler = {
+ .prepare = usbhsf_ctrl_stage_end,
+ .try_run = usbhsf_ctrl_stage_end,
+};
+
+/*
+ * irq functions
+ */
+static int usbhsf_irq_empty(struct usbhs_priv *priv,
+ struct usbhs_irq_state *irq_state)
+{
+ struct usbhs_pipe *pipe;
+ struct device *dev = usbhs_priv_to_dev(priv);
+ int i, ret;
+
+ if (!irq_state->bempsts) {
+ dev_err(dev, "debug %s !!\n", __func__);
+ return -EIO;
+ }
+
+ dev_dbg(dev, "irq empty [0x%04x]\n", irq_state->bempsts);
+
+ /*
+ * search interrupted "pipe"
+ * not "uep".
+ */
+ usbhs_for_each_pipe_with_dcp(pipe, priv, i) {
+ if (!(irq_state->bempsts & (1 << i)))
+ continue;
- if (info->rx_done)
- info->rx_done(pkt);
+ ret = usbhs_pkt_run(pipe);
+ if (ret < 0)
+ dev_err(dev, "irq_empty run_error %d : %d\n", i, ret);
}
return 0;
}
+
+static int usbhsf_irq_ready(struct usbhs_priv *priv,
+ struct usbhs_irq_state *irq_state)
+{
+ struct usbhs_pipe *pipe;
+ struct device *dev = usbhs_priv_to_dev(priv);
+ int i, ret;
+
+ if (!irq_state->brdysts) {
+ dev_err(dev, "debug %s !!\n", __func__);
+ return -EIO;
+ }
+
+ dev_dbg(dev, "irq ready [0x%04x]\n", irq_state->brdysts);
+
+ /*
+ * search interrupted "pipe"
+ * not "uep".
+ */
+ usbhs_for_each_pipe_with_dcp(pipe, priv, i) {
+ if (!(irq_state->brdysts & (1 << i)))
+ continue;
+
+ ret = usbhs_pkt_run(pipe);
+ if (ret < 0)
+ dev_err(dev, "irq_ready run_error %d : %d\n", i, ret);
+ }
+
+ return 0;
+}
+
+/*
+ * fifo init
+ */
+void usbhs_fifo_init(struct usbhs_priv *priv)
+{
+ struct usbhs_mod *mod = usbhs_mod_get_current(priv);
+
+ mod->irq_empty = usbhsf_irq_empty;
+ mod->irq_ready = usbhsf_irq_ready;
+ mod->irq_bempsts = 0;
+ mod->irq_brdysts = 0;
+}
+
+void usbhs_fifo_quit(struct usbhs_priv *priv)
+{
+ struct usbhs_mod *mod = usbhs_mod_get_current(priv);
+
+ mod->irq_empty = NULL;
+ mod->irq_ready = NULL;
+ mod->irq_bempsts = 0;
+ mod->irq_brdysts = 0;
+}
git.openpandora.org / pandora-kernel.git / blobdiff