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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-17 02:20:36 +0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-17 02:20:36 +0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/pcmcia/sa1111_generic.c
downloadlinux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/pcmcia/sa1111_generic.c')
-rw-r--r--drivers/pcmcia/sa1111_generic.c196
1 files changed, 196 insertions, 0 deletions
diff --git a/drivers/pcmcia/sa1111_generic.c b/drivers/pcmcia/sa1111_generic.c
new file mode 100644
index 000000000000..bd9d6b2fad68
--- /dev/null
+++ b/drivers/pcmcia/sa1111_generic.c
@@ -0,0 +1,196 @@
+/*
+ * 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/config.h>
+#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 <pcmcia/ss.h>
+
+#include <asm/hardware.h>
+#include <asm/hardware/sa1111.h>
+#include <asm/io.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" },
+};
+
+int sa1111_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
+{
+ if (skt->irq == NO_IRQ)
+ skt->irq = skt->nr ? IRQ_S1_READY_NINT : IRQ_S0_READY_NINT;
+
+ return soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs));
+}
+
+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_dev *sadev = SA1111_DEV(skt->dev);
+ unsigned long status = sa1111_readl(sadev->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_dev *sadev = SA1111_DEV(skt->dev);
+ 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(sadev->mapbase + SA1111_PCCR);
+ val &= ~pccr_skt_mask;
+ val |= pccr_set_mask & pccr_skt_mask;
+ sa1111_writel(val, sadev->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));
+}
+
+void sa1111_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
+{
+ soc_pcmcia_disable_irqs(skt, irqs, ARRAY_SIZE(irqs));
+}
+
+static int pcmcia_probe(struct sa1111_dev *dev)
+{
+ char *base;
+
+ 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)
+{
+ soc_common_drv_pcmcia_remove(&dev->dev);
+ release_mem_region(dev->res.start, 512);
+ return 0;
+}
+
+static int pcmcia_suspend(struct sa1111_dev *dev, u32 state)
+{
+ return pcmcia_socket_dev_suspend(&dev->dev, state);
+}
+
+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);
+}
+
+module_init(sa1111_drv_pcmcia_init);
+module_exit(sa1111_drv_pcmcia_exit);
+
+MODULE_DESCRIPTION("SA1111 PCMCIA card socket driver");
+MODULE_LICENSE("GPL");