| /* |
| * host_platform.c |
| * |
| * Copyright(c) 1998 - 2009 Texas Instruments. All rights reserved. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name Texas Instruments nor the names of its |
| * contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| #include "tidef.h" |
| #include <linux/kernel.h> |
| #include <asm/io.h> |
| #include <mach/tc.h> |
| #include <linux/delay.h> |
| #include <linux/platform_device.h> |
| #include <linux/wifi_tiwlan.h> |
| |
| #include "host_platform.h" |
| #include "ioctl_init.h" |
| #include "WlanDrvIf.h" |
| #include "Device1273.h" |
| |
| |
| #define OS_API_MEM_ADDR 0x0000000 |
| #define OS_API_REG_ADDR 0x300000 |
| #if 0 /* needed for first time new host ramp*/ |
| static void dump_omap_registers(void); |
| #endif |
| |
| #define SDIO_ATTEMPT_LONGER_DELAY_LINUX 150 |
| |
| static struct wifi_platform_data *wifi_control_data = NULL; |
| static struct resource *wifi_irqres = NULL; |
| |
| static int wifi_probe( struct platform_device *pdev ) |
| { |
| struct wifi_platform_data *wifi_ctrl = (struct wifi_platform_data *)(pdev->dev.platform_data); |
| |
| wifi_irqres = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "device_wifi_irq"); |
| |
| if( wifi_ctrl ) { |
| wifi_control_data = wifi_ctrl; |
| } |
| return 0; |
| } |
| |
| static int wifi_remove( struct platform_device *pdev ) |
| { |
| struct wifi_platform_data *wifi_ctrl = (struct wifi_platform_data *)(pdev->dev.platform_data); |
| |
| if( wifi_ctrl ) { |
| if( wifi_ctrl->set_carddetect ) |
| wifi_ctrl->set_carddetect(0); /* CardDetect (1->0) */ |
| if( wifi_ctrl->set_reset ) |
| wifi_ctrl->set_reset(1); /* Reset active */ |
| if( wifi_ctrl->set_power ) |
| wifi_ctrl->set_power(0); /* Power Off */ |
| } |
| return 0; |
| } |
| |
| static struct platform_driver wifi_device = { |
| .probe = wifi_probe, |
| .remove = wifi_remove, |
| .suspend = NULL, |
| .resume = NULL, |
| .driver = { |
| .name = "device_wifi", |
| }, |
| }; |
| |
| static int wifi_add_dev( void ) |
| { |
| return platform_driver_register( &wifi_device ); |
| } |
| |
| static void wifi_del_dev( void ) |
| { |
| platform_driver_unregister( &wifi_device ); |
| } |
| |
| int wifi_set_carddetect( int on ) |
| { |
| if( wifi_control_data && wifi_control_data->set_carddetect ) { |
| wifi_control_data->set_carddetect(on); |
| } |
| return 0; |
| } |
| |
| #if 0 /* Pad configurations are taken care in kernel */ |
| static void pad_config(unsigned long pad_addr, u32 andmask, u32 ormask) |
| { |
| int val; |
| u32 *addr; |
| |
| addr = (u32 *) ioremap(pad_addr, 4); |
| if (!addr) { |
| printk(KERN_ERR "OMAP3430_pad_config: ioremap failed with addr %lx\n", pad_addr); |
| return; |
| } |
| |
| val = __raw_readl(addr); |
| val &= andmask; |
| val |= ormask; |
| __raw_writel(val, addr); |
| |
| iounmap(addr); |
| } |
| #endif |
| |
| static int OMAP3430_TNETW_Power(int power_on) |
| { |
| if (power_on) { |
| gpio_set_value(PMENA_GPIO, 1); |
| } else { |
| gpio_set_value(PMENA_GPIO, 0); |
| } |
| |
| return 0; |
| } |
| |
| /*----------------------------------------------------------------------------- |
| Routine Name: |
| hPlatform_hardResetTnetw |
| Routine Description: |
| set the GPIO to low after awaking the TNET from ELP. |
| Arguments: |
| OsContext - our adapter context. |
| Return Value: |
| None |
| -----------------------------------------------------------------------------*/ |
| |
| int hPlatform_hardResetTnetw(void) |
| { |
| int err; |
| |
| /* Turn power OFF*/ |
| if ((err = OMAP3430_TNETW_Power(0)) == 0) |
| { |
| mdelay(500); |
| /* Turn power ON*/ |
| err = OMAP3430_TNETW_Power(1); |
| mdelay(50); |
| } |
| return err; |
| |
| } /* hPlatform_hardResetTnetw() */ |
| |
| /* Turn device power off */ |
| int hPlatform_DevicePowerOff (void) |
| { |
| int err; |
| |
| err = OMAP3430_TNETW_Power(0); |
| |
| mdelay(10); |
| |
| return err; |
| } |
| |
| |
| /* Turn device power off according to a given delay */ |
| int hPlatform_DevicePowerOffSetLongerDelay(void) |
| { |
| int err; |
| |
| err = OMAP3430_TNETW_Power(0); |
| |
| mdelay(SDIO_ATTEMPT_LONGER_DELAY_LINUX); |
| |
| return err; |
| } |
| |
| |
| /* Turn device power on */ |
| int hPlatform_DevicePowerOn (void) |
| { |
| int err; |
| |
| err = OMAP3430_TNETW_Power(1); |
| |
| /* New Power Up Sequence */ |
| mdelay(15); |
| err = OMAP3430_TNETW_Power(0); |
| mdelay(1); |
| |
| err = OMAP3430_TNETW_Power(1); |
| |
| /* Should not be changed, 50 msec cause failures */ |
| mdelay(70); |
| |
| return err; |
| } |
| |
| /*--------------------------------------------------------------------------------------*/ |
| |
| int hPlatform_Wlan_Hardware_Init(void) |
| { |
| wifi_add_dev(); |
| return 0; |
| } |
| |
| /*----------------------------------------------------------------------------- |
| |
| Routine Name: |
| |
| InitInterrupt |
| |
| Routine Description: |
| |
| this function init the interrupt to the Wlan ISR routine. |
| |
| Arguments: |
| |
| tnet_drv - Golbal Tnet driver pointer. |
| |
| |
| Return Value: |
| |
| status |
| |
| -----------------------------------------------------------------------------*/ |
| |
| int hPlatform_initInterrupt(void *tnet_drv, void* handle_add ) |
| { |
| TWlanDrvIfObj *drv = tnet_drv; |
| int rc; |
| |
| if (drv->irq == 0 || handle_add == NULL) |
| { |
| print_err("hPlatform_initInterrupt() bad param drv->irq=%d handle_add=0x%x !!!\n",drv->irq,(int)handle_add); |
| return -EINVAL; |
| } |
| |
| if ((rc = request_irq(drv->irq, handle_add, IRQF_TRIGGER_FALLING, drv->netdev->name, drv))) |
| { |
| print_err("TIWLAN: Failed to register interrupt handler\n"); |
| gpio_free(IRQ_GPIO); |
| return rc; |
| } |
| |
| set_irq_wake(drv->irq, 1); |
| |
| /* |
| * request_gpio and gpio_direction are now taken care in kernel |
| * File: arch/arm/mach-omap2/board-zoom2-wifi.c |
| */ |
| |
| return rc; |
| |
| } /* hPlatform_initInterrupt() */ |
| |
| /*--------------------------------------------------------------------------------------*/ |
| |
| void hPlatform_freeInterrupt(void) |
| { |
| /* gpio_free(IRQ_GPIO); */ |
| } |
| |
| /**************************************************************************************** |
| * hPlatform_hwGetRegistersAddr() |
| **************************************************************************************** |
| DESCRIPTION: |
| |
| ARGUMENTS: |
| |
| RETURN: |
| |
| NOTES: |
| *****************************************************************************************/ |
| void* |
| hPlatform_hwGetRegistersAddr( |
| TI_HANDLE OsContext |
| ) |
| { |
| return (void*)OS_API_REG_ADDR; |
| } |
| |
| /**************************************************************************************** |
| * hPlatform_hwGetMemoryAddr() |
| **************************************************************************************** |
| DESCRIPTION: |
| |
| ARGUMENTS: |
| |
| RETURN: |
| |
| NOTES: |
| *****************************************************************************************/ |
| void* |
| hPlatform_hwGetMemoryAddr( |
| TI_HANDLE OsContext |
| ) |
| { |
| return (void*)OS_API_MEM_ADDR; |
| } |
| |
| |
| void hPlatform_Wlan_Hardware_DeInit(void) |
| { |
| /* gpio_free(PMENA_GPIO); */ |
| wifi_del_dev(); |
| } |
| |
| #if 0/* needed for first time new host ramp*/ |
| static void dump_omap_registers(void) |
| { |
| printk(KERN_ERR "MMC3 CMD addr 0x%x value is =%x\n", CONTROL_PADCONF_MMC3_CMD, omap_readl( CONTROL_PADCONF_MMC3_CMD )); |
| printk(KERN_ERR "MMC3 CLK addr 0x%x value is =%x\n", CONTROL_PADCONF_MMC3_CLK, omap_readl( CONTROL_PADCONF_MMC3_CLK )); |
| printk(KERN_ERR "MMC3 DAT0 addr 0x%x value is =%x\n", CONTROL_PADCONF_MMC3_DAT0, omap_readl( CONTROL_PADCONF_MMC3_DAT0 )); |
| printk(KERN_ERR "MMC3 DAT2 addr 0x%x value is =%x\n", CONTROL_PADCONF_MMC3_DAT2, omap_readl( CONTROL_PADCONF_MMC3_DAT2 )); |
| printk(KERN_ERR "MMC3 DAT3 addr 0x%x value is =%x\n", CONTROL_PADCONF_MMC3_DAT3, omap_readl( CONTROL_PADCONF_MMC3_DAT3 )); |
| printk(KERN_ERR "WLAN_EN addr 0x%x value is =%x\n", CONTROL_PADCONF_CAM_D1, omap_readl( CONTROL_PADCONF_CAM_D1 )); |
| printk(KERN_ERR "WLAN_IRQ addr 0x%x value is =%x\n", CONTROL_PADCONF_MCBSP1_CLKX, omap_readl( CONTROL_PADCONF_MCBSP1_CLKX )); |
| return; |
| } |
| #endif |
