Changeset 60744cb in mainline for uspace/drv/char/ns8250/ns8250.c

Timestamp:

2024-05-17T17:51:56Z (12 months ago)

Author:

Jiri Svoboda <jiri@…>

Branches:

master

Children:

1801005

Parents:

646849b3

Message:

Let driver specify any argument to IRQ handler

This allows the driver to register a single handler for multiple
interrupts and still distinguish between them. It also removes
the extra step of having to get softstate from ddf_dev_t.

File:

• uspace/drv/char/ns8250/ns8250.c (modified) (2 diffs)

uspace/drv/char/ns8250/ns8250.c

@@ -783 +783 @@
  * data and reading the line status register.
  *
- * @param dev The serial port device.
- *
- */
-static inline void ns8250_interrupt_handler(ipc_call_t *icall, ddf_dev_t *dev)
-{
-        ns8250_t *ns = dev_ns8250(dev);
+ * @pram icall IRQ event notificatoin
+ * @param arg Argument (ns8250_t *)
+ */
+static inline void ns8250_interrupt_handler(ipc_call_t *icall, void *arg)
+{
+        ns8250_t *ns = (ns8250_t *)arg;
         uint8_t iir = pio_read_8(&ns->regs->iid);
         if ((iir & NS8250_IID_CAUSE_MASK) == NS8250_IID_CAUSE_RXSTATUS) {
@@ -809 +809 @@
 {
         return register_interrupt_handler(ns->dev, ns->irq,
-            ns8250_interrupt_handler, NULL, ihandle);
+            ns8250_interrupt_handler, (void *)ns, NULL, ihandle);
 }