1 files changed, 123 insertions, 0 deletions

diff --git a/drivers/mmc/host/tmio_mmc.h b/drivers/mmc/host/tmio_mmc.h
new file mode 100644
index 000000000000..099ed49a259b
--- /dev/null
+++ b/drivers/mmc/host/tmio_mmc.h
@@ -0,0 +1,123 @@
+/*
+ * linux/drivers/mmc/host/tmio_mmc.h
+ *
+ * Copyright (C) 2007 Ian Molton
+ * Copyright (C) 2004 Ian Molton
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Driver for the MMC / SD / SDIO cell found in:
+ *
+ * TC6393XB TC6391XB TC6387XB T7L66XB ASIC3
+ */
+
+#ifndef TMIO_MMC_H
+#define TMIO_MMC_H
+
+#include <linux/highmem.h>
+#include <linux/mmc/tmio.h>
+#include <linux/pagemap.h>
+
+/* Definitions for values the CTRL_SDIO_STATUS register can take. */
+#define TMIO_SDIO_STAT_IOIRQ    0x0001
+#define TMIO_SDIO_STAT_EXPUB52  0x4000
+#define TMIO_SDIO_STAT_EXWT     0x8000
+#define TMIO_SDIO_MASK_ALL      0xc007
+
+/* Define some IRQ masks */
+/* This is the mask used at reset by the chip */
+#define TMIO_MASK_ALL           0x837f031d
+#define TMIO_MASK_READOP  (TMIO_STAT_RXRDY | TMIO_STAT_DATAEND)
+#define TMIO_MASK_WRITEOP (TMIO_STAT_TXRQ | TMIO_STAT_DATAEND)
+#define TMIO_MASK_CMD     (TMIO_STAT_CMDRESPEND | TMIO_STAT_CMDTIMEOUT | \
+                TMIO_STAT_CARD_REMOVE | TMIO_STAT_CARD_INSERT)
+#define TMIO_MASK_IRQ     (TMIO_MASK_READOP | TMIO_MASK_WRITEOP | TMIO_MASK_CMD)
+
+struct tmio_mmc_data;
+
+struct tmio_mmc_host {
+        void __iomem *ctl;
+        unsigned long bus_shift;
+        struct mmc_command      *cmd;
+        struct mmc_request      *mrq;
+        struct mmc_data         *data;
+        struct mmc_host         *mmc;
+        int                     irq;
+        unsigned int            sdio_irq_enabled;
+
+        /* Callbacks for clock / power control */
+        void (*set_pwr)(struct platform_device *host, int state);
+        void (*set_clk_div)(struct platform_device *host, int state);
+
+        /* pio related stuff */
+        struct scatterlist      *sg_ptr;
+        struct scatterlist      *sg_orig;
+        unsigned int            sg_len;
+        unsigned int            sg_off;
+
+        struct platform_device *pdev;
+        struct tmio_mmc_data *pdata;
+
+        /* DMA support */
+        bool                    force_pio;
+        struct dma_chan         *chan_rx;
+        struct dma_chan         *chan_tx;
+        struct tasklet_struct   dma_complete;
+        struct tasklet_struct   dma_issue;
+        struct scatterlist      bounce_sg;
+        u8                      *bounce_buf;
+
+        /* Track lost interrupts */
+        struct delayed_work     delayed_reset_work;
+        spinlock_t              lock;
+        unsigned long           last_req_ts;
+};
+
+int tmio_mmc_host_probe(struct tmio_mmc_host **host,
+                        struct platform_device *pdev,
+                        struct tmio_mmc_data *pdata);
+void tmio_mmc_host_remove(struct tmio_mmc_host *host);
+void tmio_mmc_do_data_irq(struct tmio_mmc_host *host);
+
+void tmio_mmc_enable_mmc_irqs(struct tmio_mmc_host *host, u32 i);
+void tmio_mmc_disable_mmc_irqs(struct tmio_mmc_host *host, u32 i);
+
+static inline char *tmio_mmc_kmap_atomic(struct scatterlist *sg,
+                                         unsigned long *flags)
+{
+        local_irq_save(*flags);
+        return kmap_atomic(sg_page(sg), KM_BIO_SRC_IRQ) + sg->offset;
+}
+
+static inline void tmio_mmc_kunmap_atomic(struct scatterlist *sg,
+                                          unsigned long *flags, void *virt)
+{
+        kunmap_atomic(virt - sg->offset, KM_BIO_SRC_IRQ);
+        local_irq_restore(*flags);
+}
+
+#if defined(CONFIG_MMC_SDHI) || defined(CONFIG_MMC_SDHI_MODULE)
+void tmio_mmc_start_dma(struct tmio_mmc_host *host, struct mmc_data *data);
+void tmio_mmc_request_dma(struct tmio_mmc_host *host, struct tmio_mmc_data *pdata);
+void tmio_mmc_release_dma(struct tmio_mmc_host *host);
+#else
+static inline void tmio_mmc_start_dma(struct tmio_mmc_host *host,
+                               struct mmc_data *data)
+{
+}
+
+static inline void tmio_mmc_request_dma(struct tmio_mmc_host *host,
+                                 struct tmio_mmc_data *pdata)
+{
+        host->chan_tx = NULL;
+        host->chan_rx = NULL;
+}
+
+static inline void tmio_mmc_release_dma(struct tmio_mmc_host *host)
+{
+}
+#endif
+
+#endif