Changes in uspace/drv/char/i8042/i8042.c [75751db6:8820544] in mainline

File:

• uspace/drv/char/i8042/i8042.c (modified) (10 diffs)

uspace/drv/char/i8042/i8042.c

@@ -2 +2 @@
  * Copyright (c) 2001-2004 Jakub Jermar
  * Copyright (c) 2006 Josef Cejka
- * Copyright (c) 2014 Jiri Svoboda
+ * Copyright (c) 2009 Jiri Svoboda
  * Copyright (c) 2011 Jan Vesely
  * All rights reserved.
@@ -39 +39 @@
  */
 
-#include <ddf/log.h>
-#include <ddf/interrupt.h>
+#include <device/hw_res.h>
 #include <ddi.h>
-#include <device/hw_res.h>
 #include <errno.h>
 #include <str_error.h>
 #include <inttypes.h>
-#include <io/chardev_srv.h>
-
+#include <ddf/log.h>
+#include <ddf/interrupt.h>
 #include "i8042.h"
 
@@ -66 +64 @@
 #define i8042_KBD_TRANSLATE  0x40  /* Use this to switch to XT scancodes */
 
-static void i8042_char_conn(ipc_callid_t, ipc_call_t *, void *);
-static int i8042_read(chardev_srv_t *, void *, size_t);
-static int i8042_write(chardev_srv_t *, const void *, size_t);
-
-static chardev_ops_t i8042_chardev_ops = {
-        .read = i8042_read,
-        .write = i8042_write
+static void default_handler(ddf_fun_t *, ipc_callid_t, ipc_call_t *);
+
+/** Port function operations. */
+static ddf_dev_ops_t ops = {
+        .default_handler = default_handler
 };
 
@@ -110 +106 @@
 };
 
+/** Get i8042 soft state from device node. */
+static i8042_t *dev_i8042(ddf_dev_t *dev)
+{
+        return ddf_dev_data_get(dev);
+}
+
 /** Wait until it is safe to write to the device. */
 static void wait_ready(i8042_t *dev)
@@ -129 +131 @@
     ddf_dev_t *dev)
 {
-        i8042_t *controller = ddf_dev_data_get(dev);
+        i8042_t *controller = dev_i8042(dev);
         
         const uint8_t status = IPC_GET_ARG1(*call);
@@ -184 +186 @@
         };
         
-        dev->kbd = ddf_fun_data_alloc(dev->kbd_fun, sizeof(i8042_port_t));
-        if (dev->kbd == NULL) {
-                rc = ENOMEM;
-                goto error;
-        }
-        
-        dev->kbd->ctl = dev;
-        chardev_srvs_init(&dev->kbd->cds);
-        dev->kbd->cds.ops = &i8042_chardev_ops;
-        dev->kbd->cds.sarg = dev->kbd;
-        
         rc = ddf_fun_add_match_id(dev->kbd_fun, "char/xtkbd", 90);
         if (rc != EOK)
@@ -205 +196 @@
         }
         
-        dev->aux = ddf_fun_data_alloc(dev->aux_fun, sizeof(i8042_port_t));
-        if (dev->aux == NULL) {
-                rc = ENOMEM;
-                goto error;
-        }
-        
-        dev->aux->ctl = dev;
-        chardev_srvs_init(&dev->aux->cds);
-        dev->aux->cds.ops = &i8042_chardev_ops;
-        dev->aux->cds.sarg = dev->aux;
-        
         rc = ddf_fun_add_match_id(dev->aux_fun, "char/ps2mouse", 90);
         if (rc != EOK)
                 goto error;
         
-        ddf_fun_set_conn_handler(dev->kbd_fun, i8042_char_conn);
-        ddf_fun_set_conn_handler(dev->aux_fun, i8042_char_conn);
+        ddf_fun_set_ops(dev->kbd_fun, &ops);
+        ddf_fun_set_ops(dev->aux_fun, &ops);
         
         buffer_init(&dev->kbd_buffer, dev->kbd_data, BUFFER_SIZE);
@@ -318 +298 @@
 }
 
+// FIXME TODO use shared instead this
+enum {
+        IPC_CHAR_READ = DEV_FIRST_CUSTOM_METHOD,
+        IPC_CHAR_WRITE,
+};
+
 /** Write data to i8042 port.
  *
- * @param srv    Connection-specific data
- * @param buffer Data source
- * @param size   Data size
+ * @param fun    DDF function.
+ * @param buffer Data source.
+ * @param size   Data size.
  *
  * @return Bytes written.
  *
  */
-static int i8042_write(chardev_srv_t *srv, const void *data, size_t size)
-{
-        i8042_port_t *port = (i8042_port_t *)srv->srvs->sarg;
-        i8042_t *i8042 = port->ctl;
-        const char *dp = (const char *)data;
-        
-        fibril_mutex_lock(&i8042->write_guard);
+static int i8042_write(ddf_fun_t *fun, char *buffer, size_t size)
+{
+        i8042_t *controller = dev_i8042(ddf_fun_get_dev(fun));
+        fibril_mutex_lock(&controller->write_guard);
         
         for (size_t i = 0; i < size; ++i) {
-                if (port == i8042->aux) {
-                        wait_ready(i8042);
-                        pio_write_8(&i8042->regs->status,
+                if (controller->aux_fun == fun) {
+                        wait_ready(controller);
+                        pio_write_8(&controller->regs->status,
                             i8042_CMD_WRITE_AUX);
                 }
                 
-                wait_ready(i8042);
-                pio_write_8(&i8042->regs->data, dp[i]);
-        }
-        
-        fibril_mutex_unlock(&i8042->write_guard);
+                wait_ready(controller);
+                pio_write_8(&controller->regs->data, buffer[i]);
+        }
+        
+        fibril_mutex_unlock(&controller->write_guard);
         return size;
 }
@@ -352 +335 @@
 /** Read data from i8042 port.
  *
- * @param srv    Connection-specific data
- * @param buffer Data place
- * @param size   Data place size
+ * @param fun    DDF function.
+ * @param buffer Data place.
+ * @param size   Data place size.
  *
  * @return Bytes read.
  *
  */
-static int i8042_read(chardev_srv_t *srv, void *dest, size_t size)
-{
-        i8042_port_t *port = (i8042_port_t *)srv->srvs->sarg;
-        i8042_t *i8042 = port->ctl;
-        uint8_t *destp = (uint8_t *)dest;
-        
-        buffer_t *buffer = (port == i8042->aux) ?
-            &i8042->aux_buffer : &i8042->kbd_buffer;
+static int i8042_read(ddf_fun_t *fun, char *data, size_t size)
+{
+        i8042_t *controller = dev_i8042(ddf_fun_get_dev(fun));
+        buffer_t *buffer = (fun == controller->aux_fun) ?
+            &controller->aux_buffer : &controller->kbd_buffer;
         
         for (size_t i = 0; i < size; ++i)
-                *destp++ = buffer_read(buffer);
+                *data++ = buffer_read(buffer);
         
         return size;
@@ -376 +356 @@
 /** Handle data requests.
  *
+ * @param fun  ddf_fun_t function.
  * @param id   callid
  * @param call IPC request.
- * @param arg  ddf_fun_t function.
- */
-void i8042_char_conn(ipc_callid_t iid, ipc_call_t *icall, void *arg)
-{
-        i8042_port_t *port = ddf_fun_data_get((ddf_fun_t *)arg);
-
-        chardev_conn(iid, icall, &port->cds);
+ *
+ */
+static void default_handler(ddf_fun_t *fun, ipc_callid_t id, ipc_call_t *call)
+{
+        const sysarg_t method = IPC_GET_IMETHOD(*call);
+        const size_t size = IPC_GET_ARG1(*call);
+        
+        switch (method) {
+        case IPC_CHAR_READ:
+                if (size <= 4 * sizeof(sysarg_t)) {
+                        sysarg_t message[4] = {};
+                        
+                        i8042_read(fun, (char *) message, size);
+                        async_answer_4(id, size, message[0], message[1],
+                            message[2], message[3]);
+                } else
+                        async_answer_0(id, ELIMIT);
+                break;
+        
+        case IPC_CHAR_WRITE:
+                if (size <= 3 * sizeof(sysarg_t)) {
+                        const sysarg_t message[3] = {
+                                IPC_GET_ARG2(*call),
+                                IPC_GET_ARG3(*call),
+                                IPC_GET_ARG4(*call)
+                        };
+                        
+                        i8042_write(fun, (char *) message, size);
+                        async_answer_0(id, size);
+                } else
+                        async_answer_0(id, ELIMIT);
+        
+        default:
+                async_answer_0(id, EINVAL);
+        }
 }