/* * linux/drivers/pcmcia/sa1111_generic.c * * We implement the generic parts of a SA1111 PCMCIA driver. This * basically means we handle everything except controlling the * power. Power is machine specific... */ #include <linux/module.h> #include <linux/kernel.h> #include <linux/ioport.h> #include <linux/device.h> #include <linux/interrupt.h> #include <linux/init.h> #include <linux/io.h> #include <pcmcia/ss.h> #include <mach/hardware.h> #include <asm/hardware/sa1111.h> #include <asm/irq.h> #include "sa1111_generic.h" static struct pcmcia_irqs irqs[] = { { 0, IRQ_S0_CD_VALID, "SA1111 PCMCIA card detect" }, { 0, IRQ_S0_BVD1_STSCHG, "SA1111 PCMCIA BVD1" }, { 1, IRQ_S1_CD_VALID, "SA1111 CF card detect" }, { 1, IRQ_S1_BVD1_STSCHG, "SA1111 CF BVD1" }, }; static int sa1111_pcmcia_hw_init(struct soc_pcmcia_socket *skt) { return soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs)); } static void sa1111_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt) { soc_pcmcia_free_irqs(skt, irqs, ARRAY_SIZE(irqs)); } void sa1111_pcmcia_socket_state(struct soc_pcmcia_socket *skt, struct pcmcia_state *state) { struct sa1111_pcmcia_socket *s = to_skt(skt); unsigned long status = sa1111_readl(s->dev->mapbase + SA1111_PCSR); switch (skt->nr) { case 0: state->detect = status & PCSR_S0_DETECT ? 0 : 1; state->ready = status & PCSR_S0_READY ? 1 : 0; state->bvd1 = status & PCSR_S0_BVD1 ? 1 : 0; state->bvd2 = status & PCSR_S0_BVD2 ? 1 : 0; state->wrprot = status & PCSR_S0_WP ? 1 : 0; state->vs_3v = status & PCSR_S0_VS1 ? 0 : 1; state->vs_Xv = status & PCSR_S0_VS2 ? 0 : 1; break; case 1: state->detect = status & PCSR_S1_DETECT ? 0 : 1; state->ready = status & PCSR_S1_READY ? 1 : 0; state->bvd1 = status & PCSR_S1_BVD1 ? 1 : 0; state->bvd2 = status & PCSR_S1_BVD2 ? 1 : 0; state->wrprot = status & PCSR_S1_WP ? 1 : 0; state->vs_3v = status & PCSR_S1_VS1 ? 0 : 1; state->vs_Xv = status & PCSR_S1_VS2 ? 0 : 1; break; } } int sa1111_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state) { struct sa1111_pcmcia_socket *s = to_skt(skt); unsigned int pccr_skt_mask, pccr_set_mask, val; unsigned long flags; switch (skt->nr) { case 0: pccr_skt_mask = PCCR_S0_RST|PCCR_S0_FLT|PCCR_S0_PWAITEN|PCCR_S0_PSE; break; case 1: pccr_skt_mask = PCCR_S1_RST|PCCR_S1_FLT|PCCR_S1_PWAITEN|PCCR_S1_PSE; break; default: return -1; } pccr_set_mask = 0; if (state->Vcc != 0) pccr_set_mask |= PCCR_S0_PWAITEN|PCCR_S1_PWAITEN; if (state->Vcc == 50) pccr_set_mask |= PCCR_S0_PSE|PCCR_S1_PSE; if (state->flags & SS_RESET) pccr_set_mask |= PCCR_S0_RST|PCCR_S1_RST; if (state->flags & SS_OUTPUT_ENA) pccr_set_mask |= PCCR_S0_FLT|PCCR_S1_FLT; local_irq_save(flags); val = sa1111_readl(s->dev->mapbase + SA1111_PCCR); val &= ~pccr_skt_mask; val |= pccr_set_mask & pccr_skt_mask; sa1111_writel(val, s->dev->mapbase + SA1111_PCCR); local_irq_restore(flags); return 0; } void sa1111_pcmcia_socket_init(struct soc_pcmcia_socket *skt) { soc_pcmcia_enable_irqs(skt, irqs, ARRAY_SIZE(irqs)); } static void sa1111_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt) { soc_pcmcia_disable_irqs(skt, irqs, ARRAY_SIZE(irqs)); } int sa1111_pcmcia_add(struct sa1111_dev *dev, struct pcmcia_low_level *ops, int (*add)(struct soc_pcmcia_socket *)) { struct sa1111_pcmcia_socket *s; int i, ret = 0; ops->hw_init = sa1111_pcmcia_hw_init; ops->hw_shutdown = sa1111_pcmcia_hw_shutdown; ops->socket_state = sa1111_pcmcia_socket_state; ops->socket_suspend = sa1111_pcmcia_socket_suspend; for (i = 0; i < ops->nr; i++) { s = kzalloc(sizeof(*s), GFP_KERNEL); if (!s) return -ENOMEM; s->soc.nr = ops->first + i; s->soc.ops = ops; s->soc.socket.owner = ops->owner; s->soc.socket.dev.parent = &dev->dev; s->soc.socket.pci_irq = s->soc.nr ? IRQ_S1_READY_NINT : IRQ_S0_READY_NINT; s->dev = dev; ret = add(&s->soc); if (ret == 0) { s->next = dev_get_drvdata(&dev->dev); dev_set_drvdata(&dev->dev, s); } else kfree(s); } return ret; } static int pcmcia_probe(struct sa1111_dev *dev) { void __iomem *base; dev_set_drvdata(&dev->dev, NULL); if (!request_mem_region(dev->res.start, 512, SA1111_DRIVER_NAME(dev))) return -EBUSY; base = dev->mapbase; /* * Initialise the suspend state. */ sa1111_writel(PCSSR_S0_SLEEP | PCSSR_S1_SLEEP, base + SA1111_PCSSR); sa1111_writel(PCCR_S0_FLT | PCCR_S1_FLT, base + SA1111_PCCR); #ifdef CONFIG_SA1100_BADGE4 pcmcia_badge4_init(&dev->dev); #endif #ifdef CONFIG_SA1100_JORNADA720 pcmcia_jornada720_init(&dev->dev); #endif #ifdef CONFIG_ARCH_LUBBOCK pcmcia_lubbock_init(dev); #endif #ifdef CONFIG_ASSABET_NEPONSET pcmcia_neponset_init(dev); #endif return 0; } static int __devexit pcmcia_remove(struct sa1111_dev *dev) { struct sa1111_pcmcia_socket *next, *s = dev_get_drvdata(&dev->dev); dev_set_drvdata(&dev->dev, NULL); for (; next = s->next, s; s = next) { soc_pcmcia_remove_one(&s->soc); kfree(s); } release_mem_region(dev->res.start, 512); return 0; } static int pcmcia_suspend(struct sa1111_dev *dev, pm_message_t state) { return pcmcia_socket_dev_suspend(&dev->dev); } static int pcmcia_resume(struct sa1111_dev *dev) { return pcmcia_socket_dev_resume(&dev->dev); } static struct sa1111_driver pcmcia_driver = { .drv = { .name = "sa1111-pcmcia", }, .devid = SA1111_DEVID_PCMCIA, .probe = pcmcia_probe, .remove = __devexit_p(pcmcia_remove), .suspend = pcmcia_suspend, .resume = pcmcia_resume, }; static int __init sa1111_drv_pcmcia_init(void) { return sa1111_driver_register(&pcmcia_driver); } static void __exit sa1111_drv_pcmcia_exit(void) { sa1111_driver_unregister(&pcmcia_driver); } fs_initcall(sa1111_drv_pcmcia_init); module_exit(sa1111_drv_pcmcia_exit); MODULE_DESCRIPTION("SA1111 PCMCIA card socket driver"); MODULE_LICENSE("GPL");