/* * drivers/pcmcia/sa1100_h3600.c * * PCMCIA implementation routines for H3600 * */ #include <linux/module.h> #include <linux/kernel.h> #include <linux/device.h> #include <linux/interrupt.h> #include <linux/init.h> #include <linux/delay.h> #include <mach/hardware.h> #include <asm/irq.h> #include <asm/mach-types.h> #include <mach/h3600.h> #include "sa1100_generic.h" static struct pcmcia_irqs irqs[] = { { 0, IRQ_GPIO_H3600_PCMCIA_CD0, "PCMCIA CD0" }, { 1, IRQ_GPIO_H3600_PCMCIA_CD1, "PCMCIA CD1" } }; static int h3600_pcmcia_hw_init(struct soc_pcmcia_socket *skt) { skt->irq = skt->nr ? IRQ_GPIO_H3600_PCMCIA_IRQ1 : IRQ_GPIO_H3600_PCMCIA_IRQ0; return soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs)); } static void h3600_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt) { soc_pcmcia_free_irqs(skt, irqs, ARRAY_SIZE(irqs)); /* Disable CF bus: */ clr_h3600_egpio(IPAQ_EGPIO_OPT_NVRAM_ON); clr_h3600_egpio(IPAQ_EGPIO_OPT_ON); set_h3600_egpio(IPAQ_EGPIO_OPT_RESET); } static void h3600_pcmcia_socket_state(struct soc_pcmcia_socket *skt, struct pcmcia_state *state) { unsigned long levels = GPLR; switch (skt->nr) { case 0: state->detect = levels & GPIO_H3600_PCMCIA_CD0 ? 0 : 1; state->ready = levels & GPIO_H3600_PCMCIA_IRQ0 ? 1 : 0; state->bvd1 = 0; state->bvd2 = 0; state->wrprot = 0; /* Not available on H3600. */ state->vs_3v = 0; state->vs_Xv = 0; break; case 1: state->detect = levels & GPIO_H3600_PCMCIA_CD1 ? 0 : 1; state->ready = levels & GPIO_H3600_PCMCIA_IRQ1 ? 1 : 0; state->bvd1 = 0; state->bvd2 = 0; state->wrprot = 0; /* Not available on H3600. */ state->vs_3v = 0; state->vs_Xv = 0; break; } } static int h3600_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state) { if (state->Vcc != 0 && state->Vcc != 33 && state->Vcc != 50) { printk(KERN_ERR "h3600_pcmcia: unrecognized Vcc %u.%uV\n", state->Vcc / 10, state->Vcc % 10); return -1; } if (state->flags & SS_RESET) set_h3600_egpio(IPAQ_EGPIO_CARD_RESET); else clr_h3600_egpio(IPAQ_EGPIO_CARD_RESET); /* Silently ignore Vpp, output enable, speaker enable. */ return 0; } static void h3600_pcmcia_socket_init(struct soc_pcmcia_socket *skt) { /* Enable CF bus: */ set_h3600_egpio(IPAQ_EGPIO_OPT_NVRAM_ON); set_h3600_egpio(IPAQ_EGPIO_OPT_ON); clr_h3600_egpio(IPAQ_EGPIO_OPT_RESET); msleep(10); soc_pcmcia_enable_irqs(skt, irqs, ARRAY_SIZE(irqs)); } static void h3600_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt) { soc_pcmcia_disable_irqs(skt, irqs, ARRAY_SIZE(irqs)); /* * FIXME: This doesn't fit well. We don't have the mechanism in * the generic PCMCIA layer to deal with the idea of two sockets * on one bus. We rely on the cs.c behaviour shutting down * socket 0 then socket 1. */ if (skt->nr == 1) { clr_h3600_egpio(IPAQ_EGPIO_OPT_ON); clr_h3600_egpio(IPAQ_EGPIO_OPT_NVRAM_ON); /* hmm, does this suck power? */ set_h3600_egpio(IPAQ_EGPIO_OPT_RESET); } } struct pcmcia_low_level h3600_pcmcia_ops = { .owner = THIS_MODULE, .hw_init = h3600_pcmcia_hw_init, .hw_shutdown = h3600_pcmcia_hw_shutdown, .socket_state = h3600_pcmcia_socket_state, .configure_socket = h3600_pcmcia_configure_socket, .socket_init = h3600_pcmcia_socket_init, .socket_suspend = h3600_pcmcia_socket_suspend, }; int __init pcmcia_h3600_init(struct device *dev) { int ret = -ENODEV; if (machine_is_h3600()) ret = sa11xx_drv_pcmcia_probe(dev, &h3600_pcmcia_ops, 0, 2); return ret; }