> -----Original Message----- > From: linux-mmc-owner@xxxxxxxxxxxxxxx [mailto:linux-mmc- > owner@xxxxxxxxxxxxxxx] On Behalf Of Ohad Ben-Cohen > Sent: Tuesday, July 06, 2010 6:08 AM > To: linux-wireless@xxxxxxxxxxxxxxx; linux-mmc@xxxxxxxxxxxxxxx; linux- > omap@xxxxxxxxxxxxxxx > Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; linux@xxxxxxxxxxxxxxxx; > Chikkature Rajashekar, Madhusudhan; Luciano Coelho; akpm@linux- > foundation.org; San Mehat; Ben-cohen, Ohad > Subject: [PATCH 14/15] omap: zoom: add WLAN device > > From: Ohad Ben-Cohen <ohadb@xxxxxx> > > Add WLAN platform device and control > functions (power and virtual card detect) > in order to allow software to control the > embedded SDIO WLAN device which resides on > the ZOOM board (TI's wl1271 device). > > Based on Android's WLAN control functions by > San Mehat <san@xxxxxxxxxxx>. > > Signed-off-by: Ohad Ben-Cohen <ohadb@xxxxxx> > --- > arch/arm/mach-omap2/board-zoom-wlan.c | 129 > +++++++++++++++++++++++++ > arch/arm/mach-omap2/include/mach/board-zoom.h | 5 + > 2 files changed, 134 insertions(+), 0 deletions(-) > create mode 100644 arch/arm/mach-omap2/board-zoom-wlan.c > > diff --git a/arch/arm/mach-omap2/board-zoom-wlan.c b/arch/arm/mach- > omap2/board-zoom-wlan.c > new file mode 100644 > index 0000000..7ed5139 > --- /dev/null > +++ b/arch/arm/mach-omap2/board-zoom-wlan.c > @@ -0,0 +1,129 @@ > +/* mach-omap2/board-zoom-wlan.c > + * > + * Board support for wl1271 embedded SDIO device. > + * > + * Copyright (C) 2010 Texas Instruments, Inc. > + * > + * This file is licensed under the terms of the GNU General Public > License > + * version 2. This program is licensed "as is" without any warranty of > any > + * kind, whether express or implied. > + */ > + > +#include <linux/kernel.h> > +#include <linux/init.h> > +#include <linux/platform_device.h> > +#include <linux/mmc/host.h> > +#include <linux/mmc/sdio_ids.h> > +#include <linux/err.h> > +#include <linux/gpio.h> > +#include <linux/wl12xx.h> > + > +#include "mux.h" > + > +#ifdef CONFIG_OMAP_ZOOM_WLAN [Ghorai] Again the file itself is zoom specific, why we need the additional flag? > + > +/* these are zoom-specific board numbers */ > +#define OMAP_ZOOM_WLAN_PMENA_GPIO (101) > +#define OMAP_ZOOM_WLAN_IRQ_GPIO (162) > + > +/* wl1271 virtual 'card detect' status */ > +static int omap_zoom_wlan_cd; > +static void (*wlan_set_virtual_cd)(void *dev_id, int card_present); > +static void (*wlan_set_data)(void *dev_id, void *priv); > +static void *wlan_host_devid; > + > +int omap_zoom_wlan_register_embedded_control(void *dev_id, > + void (*set_virtual_cd)(void *dev_id, int card_present), > + void (*set_data)(void *dev_id, void *priv)) > +{ > + if (wlan_host_devid || wlan_set_virtual_cd || wlan_set_data) > + return -EBUSY; > + > + wlan_set_virtual_cd = set_virtual_cd; > + wlan_set_data = set_data; > + wlan_host_devid = dev_id; > + > + return 0; > +} > + > +int omap_zoom_wlan_get_virtual_cd(void) > +{ > + return omap_zoom_wlan_cd; > +} > + > +static void omap_zoom_wlan_set_embedded_data(void *priv) > +{ > + if (wlan_set_data) > + wlan_set_data(wlan_host_devid, priv); > + else > + pr_err("%s: host controller not registered yet\n", __func__); > +} > + > +static void omap_zoom_wlan_set_carddetect(bool card_present) > +{ > + omap_zoom_wlan_cd = card_present ? 1 : 0; > + > + pr_info("%s: %d\n", __func__, omap_zoom_wlan_cd); > + > + if (wlan_set_virtual_cd) > + wlan_set_virtual_cd(wlan_host_devid, omap_zoom_wlan_cd); > + else > + pr_err("%s: host controller not registered yet\n", __func__); > +} > + > +static void omap_zoom_wlan_power(bool enable) > +{ > + int val = enable ? 1 : 0; > + > + pr_info("%s: set power %d\n", __func__, val); > + > + gpio_set_value(OMAP_ZOOM_WLAN_PMENA_GPIO, val); > +} > + > +struct wl12xx_platform_data omap_zoom_wlan_control = { > + .set_power = omap_zoom_wlan_power, > + .set_carddetect = omap_zoom_wlan_set_carddetect, > + .set_embedded_data = omap_zoom_wlan_set_embedded_data, > + /* ZOOM ref clock is 26 MHz */ > + .board_ref_clock = 1, > + .irq = OMAP_GPIO_IRQ(OMAP_ZOOM_WLAN_IRQ_GPIO), > +}; > + > +static struct platform_device omap_zoom_wlan_device = { > + .name = "wl1271_sdio", > + .id = 1, > + .dev = { > + .platform_data = &omap_zoom_wlan_control, > + }, > +}; > + > +int __init omap_zoom_wlan_init(void) > +{ > + int ret; > + > + ret = gpio_request(OMAP_ZOOM_WLAN_PMENA_GPIO, "wlan_power"); > + if (ret < 0) { > + pr_err("%s: power gpio request failed: %d\n", __func__, ret); > + return ret; > + } > + > + gpio_direction_output(OMAP_ZOOM_WLAN_PMENA_GPIO, 0); > + > + ret = gpio_request(OMAP_ZOOM_WLAN_IRQ_GPIO, "wlan_irq"); > + if (ret < 0) { > + pr_err("%s: gpio request failed: %d\n", __func__, ret); > + return ret; > + } > + gpio_direction_input(OMAP_ZOOM_WLAN_IRQ_GPIO); > + > + ret = platform_device_register(&omap_zoom_wlan_device); > + > + return ret; > +} > + > +#else > +int __init omap_zoom_wlan_init(void) > +{ > + return 0; > +} > +#endif /* CONFIG_OMAP_ZOOM_WLAN */ > diff --git a/arch/arm/mach-omap2/include/mach/board-zoom.h > b/arch/arm/mach-omap2/include/mach/board-zoom.h > index c93b29e..61bbd81 100644 > --- a/arch/arm/mach-omap2/include/mach/board-zoom.h > +++ b/arch/arm/mach-omap2/include/mach/board-zoom.h > @@ -3,3 +3,8 @@ > */ > extern int __init zoom_debugboard_init(void); > extern void __init zoom_peripherals_init(void); > +int __init omap_zoom_wlan_init(void); > +int omap_zoom_wlan_register_embedded_control(void *dev_id, > + void (*set_virtual_cd)(void *dev_id, int card_present), > + void (*set_data)(void *dev_id, void *priv)); > +int omap_zoom_wlan_get_virtual_cd(void); > -- > 1.7.0.4 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-mmc" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
