Changeset 89ac5513 in mainline for kernel/genarch/src/drivers/omap/uart.c

Timestamp:

2013-06-23T19:54:53Z (11 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

ddb1922

Parents:

3abf0760 (diff), 96cbd18 (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.

Message:

Merge mainline changes.

File:

• kernel/genarch/src/drivers/omap/uart.c (moved) (moved from kernel/genarch/src/drivers/am335x/uart.c ) (10 diffs)

kernel/genarch/src/drivers/omap/uart.c

@@ -32 +32 @@
 /**
  * @file
- * @brief Texas Instruments AM335x on-chip uart serial line driver.
+ * @brief Texas Instruments OMAP on-chip uart serial line driver.
  */
 
-#include <genarch/drivers/am335x/uart.h>
+#include <genarch/drivers/omap/uart.h>
 #include <ddi/device.h>
 #include <str.h>
 #include <mm/km.h>
 
-static void am335x_uart_txb(am335x_uart_t *uart, uint8_t b)
+static void omap_uart_txb(omap_uart_t *uart, uint8_t b)
 {
         /* Wait for buffer */
-        while (uart->regs->ssr & AM335x_UART_SSR_TX_FIFO_FULL_FLAG);
+        while (uart->regs->ssr & OMAP_UART_SSR_TX_FIFO_FULL_FLAG);
         /* Write to the outgoing fifo */
         uart->regs->thr = b;
 }
 
-static void am335x_uart_putchar(outdev_t *dev, wchar_t ch)
+static void omap_uart_putchar(outdev_t *dev, wchar_t ch)
 {
-        am335x_uart_t *uart = dev->data;
+        omap_uart_t *uart = dev->data;
         if (!ascii_check(ch)) {
-                am335x_uart_txb(uart, U_SPECIAL);
+                omap_uart_txb(uart, U_SPECIAL);
         } else {
                 if (ch == '\n')
-                        am335x_uart_txb(uart, '\r');
-                am335x_uart_txb(uart, ch);
+                        omap_uart_txb(uart, '\r');
+                omap_uart_txb(uart, ch);
         }
 }
 
-static outdev_operations_t am335x_uart_ops = {
+static outdev_operations_t omap_uart_ops = {
         .redraw = NULL,
-        .write = am335x_uart_putchar,
+        .write = omap_uart_putchar,
 };
 
-static irq_ownership_t am335x_uart_claim(irq_t *irq)
+static irq_ownership_t omap_uart_claim(irq_t *irq)
 {
         return IRQ_ACCEPT;
 }
 
-static void am335x_uart_handler(irq_t *irq)
+static void omap_uart_handler(irq_t *irq)
 {
-        am335x_uart_t *uart = irq->instance;
+        omap_uart_t *uart = irq->instance;
         while ((uart->regs->rx_fifo_lvl)) {
                 const uint8_t val = uart->regs->rhr;
@@ -81 +81 @@
 }
 
-bool am335x_uart_init(
-    am335x_uart_t *uart, inr_t interrupt, uintptr_t addr, size_t size)
+bool omap_uart_init(
+    omap_uart_t *uart, inr_t interrupt, uintptr_t addr, size_t size)
 {
         ASSERT(uart);
@@ -90 +90 @@
 
         /* Soft reset the port */
-        uart->regs->sysc = AM335x_UART_SYSC_SOFTRESET_FLAG;
-        while (!(uart->regs->syss & AM335x_UART_SYSS_RESETDONE_FLAG));
+        uart->regs->sysc = OMAP_UART_SYSC_SOFTRESET_FLAG;
+        while (!(uart->regs->syss & OMAP_UART_SYSS_RESETDONE_FLAG));
 
         /* Disable the UART module */
-        uart->regs->mdr1 |= AM335x_UART_MDR_MS_DISABLE;
+        uart->regs->mdr1 |= OMAP_UART_MDR_MS_DISABLE;
 
         /* Enable access to EFR register */
@@ -100 +100 @@
 
         /* Enable access to TCL_TLR register */
-        const bool enhanced = uart->regs->efr & AM335x_UART_EFR_ENH_FLAG;
-        uart->regs->efr |= AM335x_UART_EFR_ENH_FLAG; /* Turn on enh. */
+        const bool enhanced = uart->regs->efr & OMAP_UART_EFR_ENH_FLAG;
+        uart->regs->efr |= OMAP_UART_EFR_ENH_FLAG; /* Turn on enh. */
         uart->regs->lcr = 0x80;              /* Config mode A */
 
         /* Set default (val 0) triggers, disable DMA enable FIFOs */
-        const bool tcl_tlr = uart->regs->mcr & AM335x_UART_MCR_TCR_TLR_FLAG;
+        const bool tcl_tlr = uart->regs->mcr & OMAP_UART_MCR_TCR_TLR_FLAG;
         /* Enable access to tcr and tlr registers */
-        uart->regs->mcr |= AM335x_UART_MCR_TCR_TLR_FLAG;
+        uart->regs->mcr |= OMAP_UART_MCR_TCR_TLR_FLAG;
 
         /* Enable FIFOs */
-        uart->regs->fcr = AM335x_UART_FCR_FIFO_EN_FLAG;
+        uart->regs->fcr = OMAP_UART_FCR_FIFO_EN_FLAG;
 
         /* Enable fine granularity for RX FIFO and set trigger level to 1,
          * TX FIFO, trigger level is irrelevant*/
         uart->regs->lcr = 0xBF;              /* Sets config mode B */
-        uart->regs->scr = AM335x_UART_SCR_RX_TRIG_GRANU1_FLAG;
-        uart->regs->tlr = 1 << AM335x_UART_TLR_RX_FIFO_TRIG_SHIFT;
+        uart->regs->scr = OMAP_UART_SCR_RX_TRIG_GRANU1_FLAG;
+        uart->regs->tlr = 1 << OMAP_UART_TLR_RX_FIFO_TRIG_SHIFT;
 
         /* Sets config mode A */
@@ -122 +122 @@
         /* Restore tcl_tlr access flag */
         if (!tcl_tlr)
-                uart->regs->mcr &= ~AM335x_UART_MCR_TCR_TLR_FLAG;
+                uart->regs->mcr &= ~OMAP_UART_MCR_TCR_TLR_FLAG;
         /* Sets config mode B */
         uart->regs->lcr = 0xBF;
@@ -132 +132 @@
         /* Restore enhanced */
         if (!enhanced)
-                uart->regs->efr &= ~AM335x_UART_EFR_ENH_FLAG;
+                uart->regs->efr &= ~OMAP_UART_EFR_ENH_FLAG;
 
         /* Set the DIV_EN bit to 0 */
-        uart->regs->lcr &= ~AM335x_UART_LCR_DIV_EN_FLAG;
+        uart->regs->lcr &= ~OMAP_UART_LCR_DIV_EN_FLAG;
         /* Set the BREAK_EN bit to 0 */
-        uart->regs->lcr &= ~AM335x_UART_LCR_BREAK_EN_FLAG;
+        uart->regs->lcr &= ~OMAP_UART_LCR_BREAK_EN_FLAG;
         /* No parity */
-        uart->regs->lcr &= ~AM335x_UART_LCR_PARITY_EN_FLAG;
+        uart->regs->lcr &= ~OMAP_UART_LCR_PARITY_EN_FLAG;
         /* Stop = 1 bit */
-        uart->regs->lcr &= ~AM335x_UART_LCR_NB_STOP_FLAG;
+        uart->regs->lcr &= ~OMAP_UART_LCR_NB_STOP_FLAG;
         /* Char length = 8 bits */
-        uart->regs->lcr |= AM335x_UART_LCR_CHAR_LENGTH_8BITS;
+        uart->regs->lcr |= OMAP_UART_LCR_CHAR_LENGTH_8BITS;
 
         /* Enable the UART module */
-        uart->regs->mdr1 &= (AM335x_UART_MDR_MS_UART16 &
-            ~AM335x_UART_MDR_MS_MASK);
+        uart->regs->mdr1 &= (OMAP_UART_MDR_MS_UART16 &
+            ~OMAP_UART_MDR_MS_MASK);
 
         /* Disable interrupts */
@@ -153 +153 @@
 
         /* Setup outdev */
-        outdev_initialize("am335x_uart_dev", &uart->outdev, &am335x_uart_ops);
+        outdev_initialize("omap_uart_dev", &uart->outdev, &omap_uart_ops);
         uart->outdev.data = uart;
 
@@ -160 +160 @@
         uart->irq.devno = device_assign_devno();
         uart->irq.inr = interrupt;
-        uart->irq.claim = am335x_uart_claim;
-        uart->irq.handler = am335x_uart_handler;
+        uart->irq.claim = omap_uart_claim;
+        uart->irq.handler = omap_uart_handler;
         uart->irq.instance = uart;
 
@@ -167 +167 @@
 }
 
-void am335x_uart_input_wire(am335x_uart_t *uart, indev_t *indev)
+void omap_uart_input_wire(omap_uart_t *uart, indev_t *indev)
 {
         ASSERT(uart);
@@ -175 +175 @@
         irq_register(&uart->irq);
         /* Enable interrupt on receive */
-        uart->regs->ier |= AM335x_UART_IER_RHR_IRQ_FLAG;
+        uart->regs->ier |= OMAP_UART_IER_RHR_IRQ_FLAG;
 }