/*
- * superio.c: RAM driver for SMSC LPC47B272 Super I/O chip
+ * This file is part of the coreboot project.
*
- * Copyright 2000 AG Electronics Ltd.
- * Copyright 2003-2004 Linux Networx
- * Copyright 2004 Tyan
+ * Copyright (C) 2000 AG Electronics Ltd.
+ * Copyright (C) 2003-2004 Linux Networx
+ * Copyright (C) 2004 Tyan
* Copyright (C) 2005 Digital Design Corporation
*
* This program is free software; you can redistribute it and/or modify
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
+/* RAM driver for SMSC LPC47B272 Super I/O chip. */
+
#include <arch/io.h>
#include <device/device.h>
#include <device/pnp.h>
#include <bitops.h>
#include <uart8250.h>
#include <pc80/keyboard.h>
+#include <stdlib.h>
#include "chip.h"
#include "lpc47b272.h"
-// Forward declarations
+/* Forward declarations */
static void enable_dev(device_t dev);
-void lpc47b272_pnp_set_resources(device_t dev);
-void lpc47b272_pnp_set_resources(device_t dev);
-void lpc47b272_pnp_enable_resources(device_t dev);
-void lpc47b272_pnp_enable(device_t dev);
+static void lpc47b272_pnp_set_resources(device_t dev);
+static void lpc47b272_pnp_enable_resources(device_t dev);
+static void lpc47b272_pnp_enable(device_t dev);
static void lpc47b272_init(device_t dev);
static void pnp_enter_conf_state(device_t dev);
static void pnp_exit_conf_state(device_t dev);
-static void dump_pnp_device(device_t dev);
-
+//static void dump_pnp_device(device_t dev);
struct chip_operations superio_smsc_lpc47b272_ops = {
CHIP_NAME("SMSC LPC47B272 Super I/O")
};
static struct pnp_info pnp_dev_info[] = {
- { &ops, LPC47B272_FDC, PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, { 0x07f8, 0}, },
- { &ops, LPC47B272_PP, PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, { 0x07f8, 0}, },
- { &ops, LPC47B272_SP1, PNP_IO0 | PNP_IRQ0, { 0x7f8, 0 }, },
- { &ops, LPC47B272_SP2, PNP_IO0 | PNP_IRQ0, { 0x7f8, 0 }, },
- { &ops, LPC47B272_KBC, PNP_IO0 | PNP_IO1 | PNP_IRQ0 | PNP_IRQ1, { 0x7ff, 0 }, { 0x7ff, 0x4}, },
- { &ops, LPC47B272_RT, PNP_IO0, { 0x780, 0 }, },
+ { &ops, LPC47B272_FDC, PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, { 0x07f8, 0}, },
+ { &ops, LPC47B272_PP, PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, { 0x07f8, 0}, },
+ { &ops, LPC47B272_SP1, PNP_IO0 | PNP_IRQ0, { 0x7f8, 0 }, },
+ { &ops, LPC47B272_SP2, PNP_IO0 | PNP_IRQ0, { 0x7f8, 0 }, },
+ { &ops, LPC47B272_KBC, PNP_IO0 | PNP_IO1 | PNP_IRQ0 | PNP_IRQ1, { 0x7ff, 0 }, { 0x7ff, 0x4}, },
+ { &ops, LPC47B272_RT, PNP_IO0, { 0x780, 0 }, },
};
-/**********************************************************************************/
-/* PUBLIC INTERFACE */
-/**********************************************************************************/
-
-//----------------------------------------------------------------------------------
-// Function: enable_dev
-// Parameters: dev - pointer to structure describing a Super I/O device
-// Return Value: None
-// Description: Create device structures and allocate resources to devices
-// specified in the pnp_dev_info array (above).
-//
+/**
+ * Create device structures and allocate resources to devices specified in the
+ * pnp_dev_info array (above).
+ *
+ * @param dev Pointer to structure describing a Super I/O device.
+ */
static void enable_dev(device_t dev)
{
- pnp_enable_devices(dev, &pnp_ops,
- sizeof(pnp_dev_info)/sizeof(pnp_dev_info[0]),
- pnp_dev_info);
+ pnp_enable_devices(dev, &pnp_ops, ARRAY_SIZE(pnp_dev_info),
+ pnp_dev_info);
}
-//----------------------------------------------------------------------------------
-// Function: lpc47b272_pnp_set_resources
-// Parameters: dev - pointer to structure describing a Super I/O device
-// Return Value: None
-// Description: Configure the specified Super I/O device with the resources
-// (I/O space, etc.) that have been allocated for it.
-//
-void lpc47b272_pnp_set_resources(device_t dev)
+/**
+ * Configure the specified Super I/O device with the resources (I/O space,
+ * etc.) that have been allocated for it.
+ *
+ * @param dev Pointer to structure describing a Super I/O device.
+ */
+static void lpc47b272_pnp_set_resources(device_t dev)
{
- pnp_enter_conf_state(dev);
+ pnp_enter_conf_state(dev);
pnp_set_resources(dev);
- pnp_exit_conf_state(dev);
-}
+ pnp_exit_conf_state(dev);
+}
-void lpc47b272_pnp_enable_resources(device_t dev)
-{
+static void lpc47b272_pnp_enable_resources(device_t dev)
+{
pnp_enter_conf_state(dev);
- pnp_enable_resources(dev);
- pnp_exit_conf_state(dev);
+ pnp_enable_resources(dev);
+ pnp_exit_conf_state(dev);
}
-void lpc47b272_pnp_enable(device_t dev)
+static void lpc47b272_pnp_enable(device_t dev)
{
- pnp_enter_conf_state(dev);
+ pnp_enter_conf_state(dev);
pnp_set_logical_device(dev);
if(dev->enabled) {
else {
pnp_set_enable(dev, 0);
}
- pnp_exit_conf_state(dev);
+ pnp_exit_conf_state(dev);
}
-//----------------------------------------------------------------------------------
-// Function: lpc47b272_init
-// Parameters: dev - pointer to structure describing a Super I/O device
-// Return Value: None
-// Description: Initialize the specified Super I/O device.
-// Devices other than COM ports and the keyboard controller are
-// ignored. For COM ports, we configure the baud rate.
-//
+/**
+ * Initialize the specified Super I/O device.
+ *
+ * Devices other than COM ports and the keyboard controller are ignored.
+ * For COM ports, we configure the baud rate.
+ *
+ * @param dev Pointer to structure describing a Super I/O device.
+ */
static void lpc47b272_init(device_t dev)
{
struct superio_smsc_lpc47b272_config *conf = dev->chip_info;
- struct resource *res0, *res1;
+ struct resource *res0;
if (!dev->enabled)
return;
-
- switch(dev->path.u.pnp.device) {
- case LPC47B272_SP1:
+
+ switch(dev->path.pnp.device) {
+ case LPC47B272_SP1:
res0 = find_resource(dev, PNP_IDX_IO0);
init_uart8250(res0->base, &conf->com1);
break;
-
+
case LPC47B272_SP2:
res0 = find_resource(dev, PNP_IDX_IO0);
init_uart8250(res0->base, &conf->com2);
break;
-
+
case LPC47B272_KBC:
- res0 = find_resource(dev, PNP_IDX_IO0);
- res1 = find_resource(dev, PNP_IDX_IO1);
- init_pc_keyboard(res0->base, res1->base, &conf->keyboard);
+ pc_keyboard_init(&conf->keyboard);
break;
}
}
-/**********************************************************************************/
-/* PRIVATE FUNCTIONS */
-/**********************************************************************************/
-
-//----------------------------------------------------------------------------------
-// Function: pnp_enter_conf_state
-// Parameters: dev - pointer to structure describing a Super I/O device
-// Return Value: None
-// Description: Enable access to the LPC47B272's configuration registers.
-//
-static void pnp_enter_conf_state(device_t dev)
+/** Enable access to the LPC47B272's configuration registers. */
+static void pnp_enter_conf_state(device_t dev)
{
- outb(0x55, dev->path.u.pnp.port);
+ outb(0x55, dev->path.pnp.port);
}
-//----------------------------------------------------------------------------------
-// Function: pnp_exit_conf_state
-// Parameters: dev - pointer to structure describing a Super I/O device
-// Return Value: None
-// Description: Disable access to the LPC47B272's configuration registers.
-//
-static void pnp_exit_conf_state(device_t dev)
+/** Disable access to the LPC47B272's configuration registers. */
+static void pnp_exit_conf_state(device_t dev)
{
- outb(0xaa, dev->path.u.pnp.port);
+ outb(0xaa, dev->path.pnp.port);
}
#if 0
-//----------------------------------------------------------------------------------
-// Function: dump_pnp_device
-// Parameters: dev - pointer to structure describing a Super I/O device
-// Return Value: None
-// Description: Print the values of all of the LPC47B272's configuration registers.
-// NOTE: The LPC47B272 must be in configuration mode when this
-// function is called.
-//
+/**
+ * Print the values of all of the LPC47B272's configuration registers.
+ *
+ * NOTE: The LPC47B272 must be in config mode when this function is called.
+ *
+ * @param dev Pointer to structure describing a Super I/O device.
+ */
static void dump_pnp_device(device_t dev)
{
- int register_index;
- print_debug("\r\n");
+ int register_index;
+ print_debug("\n");
- for(register_index = 0; register_index <= LPC47B272_MAX_CONFIG_REGISTER; register_index++) {
- uint8_t register_value;
+ for(register_index = 0; register_index <= LPC47B272_MAX_CONFIG_REGISTER; register_index++) {
+ uint8_t register_value;
- if ((register_index & 0x0f) == 0) {
- print_debug_hex8(register_index);
- print_debug_char(':');
- }
+ if ((register_index & 0x0f) == 0) {
+ print_debug_hex8(register_index);
+ print_debug_char(':');
+ }
- // Skip over 'register' that would cause exit from configuration mode
- if (register_index == 0xaa)
+ /* Skip over 'register' that would cause exit from configuration mode */
+ if (register_index == 0xaa)
register_value = 0xaa;
else
- register_value = pnp_read_config(dev, register_index);
+ register_value = pnp_read_config(dev, register_index);
- print_debug_char(' ');
- print_debug_hex8(register_value);
- if ((register_index & 0x0f) == 0x0f) {
- print_debug("\r\n");
- }
- }
+ print_debug_char(' ');
+ print_debug_hex8(register_value);
+ if ((register_index & 0x0f) == 0x0f) {
+ print_debug("\n");
+ }
+ }
- print_debug("\r\n");
+ print_debug("\n");
}
#endif
projects / coreboot.git / blobdiff