Changeset 0764cc8a in mainline

Timestamp:

2014-05-26T20:52:46Z (10 years ago)

Author:

Agnieszka Tabaka <nufcia@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

59b3095

Parents:

f1ac202

Message:

Add more function stubs to allow proper driver attaching, add code for
allocating DMA ring buffers. Interrupt handler and status notifications
work!

Location:

uspace/drv/nic/rtl8169

Files:

• driver.c (modified) (9 diffs)
• driver.h (modified) (2 diffs)

uspace/drv/nic/rtl8169/driver.c

@@ -87 +87 @@
 static rtl8169_t *rtl8169_create_dev_data(ddf_dev_t *dev);
 
+static int rtl8169_unicast_set(nic_t *nic_data, nic_unicast_mode_t mode,
+    const nic_address_t *, size_t);
+static int rtl8169_multicast_set(nic_t *nic_data, nic_multicast_mode_t mode,
+    const nic_address_t *addr, size_t addr_count);
+static int rtl8169_broadcast_set(nic_t *nic_data, nic_broadcast_mode_t mode);
+
+
 /** Network interface options for RTL8169 card driver */
 static nic_iface_t rtl8169_nic_iface = {
@@ -221 +228 @@
 }
 
+static int rtl8169_allocate_buffers(rtl8169_t *rtl8169)
+{
+        int rc;
+
+        ddf_msg(LVL_DEBUG, "Allocating DMA buffer rings");
+
+        /* Allocate TX ring */
+        rc = dmamem_map_anonymous(TX_RING_SIZE, DMAMEM_4GiB, 
+            AS_AREA_READ | AS_AREA_WRITE, 0, &rtl8169->tx_ring_phys,
+            &rtl8169->tx_ring_virt);
+
+        if (rc != EOK)
+                return rc;
+
+        /* Allocate RX ring */
+        rc = dmamem_map_anonymous(RX_RING_SIZE, DMAMEM_4GiB, 
+            AS_AREA_READ | AS_AREA_WRITE, 0, &rtl8169->rx_ring_phys,
+            &rtl8169->rx_ring_virt);
+
+        if (rc != EOK)
+                return rc;
+
+        /* Allocate TX buffers */
+        rc = dmamem_map_anonymous(TX_BUFFERS_SIZE, DMAMEM_4GiB, 
+            AS_AREA_READ | AS_AREA_WRITE, 0, &rtl8169->tx_buff_phys,
+            &rtl8169->tx_buff_virt);
+
+        if (rc != EOK)
+                return rc;
+
+        /* Allocate RX buffers */
+        rc = dmamem_map_anonymous(RX_BUFFERS_SIZE, DMAMEM_4GiB, 
+            AS_AREA_READ | AS_AREA_WRITE, 0, &rtl8169->rx_buff_phys,
+            &rtl8169->rx_buff_virt);
+
+        if (rc != EOK)
+                return rc;
+}
+
 static rtl8169_t *rtl8169_create_dev_data(ddf_dev_t *dev)
 {
@@ -244 +290 @@
                 rtl8169_on_activated, NULL, rtl8169_on_stopped);
         nic_set_filtering_change_handlers(nic_data,
-                NULL, NULL, NULL, NULL, NULL);
+                rtl8169_unicast_set, rtl8169_multicast_set, rtl8169_broadcast_set,
+                NULL, NULL);
 
         fibril_mutex_initialize(&rtl8169->rx_lock);
@@ -255 +302 @@
         return rtl8169;
 }
-
 
 static int rtl8169_dev_initialize(ddf_dev_t *dev)
@@ -344 +390 @@
         ddf_msg(LVL_DEBUG, "Interrupt handler installed");
 
-        rtl8169_reset(rtl8169);
-        pio_write_16(rtl8169->regs + IMR, 0xffff);
-
         uint8_t cr_value = pio_read_8(rtl8169->regs + CR);
         pio_write_8(rtl8169->regs + CR, cr_value | CR_TE | CR_RE);
@@ -377 +420 @@
                 goto err_fun_bind;
         }
-
+        
         ddf_msg(LVL_NOTE, "The %s device has been successfully initialized.",
             ddf_dev_get_name(dev));
@@ -474 +517 @@
         rtl8169_t *rtl8169 = nic_get_specific(nic_data);
 
+        /* Reset card */
+        pio_write_8(rtl8169->regs + CONFIG0, 0);
+        rtl8169_reset(rtl8169);
+
+        /* Enable TX and RX */
+        uint8_t cr = pio_read_8(rtl8169->regs + CR);
+        cr |= CR_TE | CR_RE;
+        pio_write_8(rtl8169->regs + CR, cr);
+
         pio_write_16(rtl8169->regs + IMR, 0xffff);
+        nic_enable_interrupt(nic_data, rtl8169->irq);
 
         return EOK;
@@ -481 +534 @@
 static int rtl8169_on_stopped(nic_t *nic_data)
 {
+        ddf_msg(LVL_NOTE, "Stopping device");
         return EOK;
 }
@@ -522 +576 @@
 
 }
+
+static int rtl8169_unicast_set(nic_t *nic_data, nic_unicast_mode_t mode,
+    const nic_address_t *addr, size_t addr_count)
+{
+        return EOK;
+}
+
+static int rtl8169_multicast_set(nic_t *nic_data, nic_multicast_mode_t mode,
+    const nic_address_t *addr, size_t addr_count)
+{
+        return EOK;
+}
+
+static int rtl8169_broadcast_set(nic_t *nic_data, nic_broadcast_mode_t mode)
+{
+        return EOK;
+}
+
+
 
 static void rtl8169_irq_handler(ddf_dev_t *dev, ipc_callid_t iid,

uspace/drv/nic/rtl8169/driver.h

@@ -38 +38 @@
 #define NAME  "rtl8169"
 
-#define TX_BUFF_COUNT   16
+#define TX_BUFFERS_COUNT        16
+#define RX_BUFFERS_COUNT        16
+
+#define TX_RING_SIZE            (sizeof(rtl8169_descr_t) * TX_BUFFERS_COUNT)
+#define RX_RING_SIZE            (sizeof(rtl8169_descr_t) * RX_BUFFERS_COUNT)
 
 /** RTL8139 device data */
@@ -48 +52 @@
         /** The irq assigned */
         int irq;
-
         /** Mask of the turned interupts (IMR value) */
         uint16_t int_mask;
-
-        /** The memory allocated for the transmittion buffers
-         *  Each buffer takes 2kB
-         */
+        /** TX ring */
+        uintptr_t tx_ring_phys;
+        void *tx_ring_virt;
+        /** RX ring */
+        uintptr_t rx_ring_phys;
+        void *rx_ring_virt;
+        /** TX buffers */
         uintptr_t tx_buff_phys;
         void *tx_buff_virt;
-
-        /** Virtual adresses of the Tx buffers */
-        void *tx_buff[TX_BUFF_COUNT];
-
+        /** RX buffers */
+        uintptr_t rx_buff_phys;
+        void *rx_buff;
         /** The nubmer of the next buffer to use, index = tx_next % TX_BUFF_COUNT */
         size_t tx_next;