/* * Sonics Silicon Backplane * SDIO-Hostbus related functions * * Copyright 2009 Albert Herranz <[email protected]> * * Based on drivers/ssb/pcmcia.c * Copyright 2006 Johannes Berg <[email protected]> * Copyright 2007-2008 Michael Buesch <[email protected]> * * Licensed under the GNU/GPL. See COPYING for details. * */ #include "ssb_private.h" #include <linux/ssb/ssb.h> #include <linux/delay.h> #include <linux/io.h> #include <linux/etherdevice.h> #include <linux/mmc/sdio_func.h> /* Define the following to 1 to enable a printk on each coreswitch. */ #define SSB_VERBOSE_SDIOCORESWITCH_DEBUG … /* Hardware invariants CIS tuples */ #define SSB_SDIO_CIS … #define SSB_SDIO_CIS_SROMREV … #define SSB_SDIO_CIS_ID … #define SSB_SDIO_CIS_BOARDREV … #define SSB_SDIO_CIS_PA … #define SSB_SDIO_CIS_PA_PA0B0_LO … #define SSB_SDIO_CIS_PA_PA0B0_HI … #define SSB_SDIO_CIS_PA_PA0B1_LO … #define SSB_SDIO_CIS_PA_PA0B1_HI … #define SSB_SDIO_CIS_PA_PA0B2_LO … #define SSB_SDIO_CIS_PA_PA0B2_HI … #define SSB_SDIO_CIS_PA_ITSSI … #define SSB_SDIO_CIS_PA_MAXPOW … #define SSB_SDIO_CIS_OEMNAME … #define SSB_SDIO_CIS_CCODE … #define SSB_SDIO_CIS_ANTENNA … #define SSB_SDIO_CIS_ANTGAIN … #define SSB_SDIO_CIS_BFLAGS … #define SSB_SDIO_CIS_LEDS … #define CISTPL_FUNCE_LAN_NODE_ID … /* * Function 1 miscellaneous registers. * * Definitions match src/include/sbsdio.h from the * Android Open Source Project * http://android.git.kernel.org/?p=platform/system/wlan/broadcom.git * */ #define SBSDIO_FUNC1_SBADDRLOW … #define SBSDIO_FUNC1_SBADDRMID … #define SBSDIO_FUNC1_SBADDRHIGH … /* valid bits in SBSDIO_FUNC1_SBADDRxxx regs */ #define SBSDIO_SBADDRLOW_MASK … #define SBSDIO_SBADDRMID_MASK … #define SBSDIO_SBADDRHIGH_MASK … #define SBSDIO_SB_OFT_ADDR_MASK … /* REVISIT: this flag doesn't seem to matter */ #define SBSDIO_SB_ACCESS_2_4B_FLAG … /* * Address map within the SDIO function address space (128K). * * Start End Description * ------- ------- ------------------------------------------ * 0x00000 0x0ffff selected backplane address window (64K) * 0x10000 0x1ffff backplane control registers (max 64K) * * The current address window is configured by writing to registers * SBADDRLOW, SBADDRMID and SBADDRHIGH. * * In order to access the contents of a 32-bit Silicon Backplane address * the backplane address window must be first loaded with the highest * 16 bits of the target address. Then, an access must be done to the * SDIO function address space using the lower 15 bits of the address. * Bit 15 of the address must be set when doing 32 bit accesses. * * 10987654321098765432109876543210 * WWWWWWWWWWWWWWWWW SB Address Window * OOOOOOOOOOOOOOOO Offset within SB Address Window * a 32-bit access flag */ /* * SSB I/O via SDIO. * * NOTE: SDIO address @addr is 17 bits long (SDIO address space is 128K). */ static inline struct device *ssb_sdio_dev(struct ssb_bus *bus) { … } /* host claimed */ static int ssb_sdio_writeb(struct ssb_bus *bus, unsigned int addr, u8 val) { … } #if 0 static u8 ssb_sdio_readb(struct ssb_bus *bus, unsigned int addr) { u8 val; int error = 0; val = sdio_readb(bus->host_sdio, addr, &error); if (unlikely(error)) { dev_dbg(ssb_sdio_dev(bus), "%08X -> %02x, error %d\n", addr, val, error); } return val; } #endif /* host claimed */ static int ssb_sdio_set_sbaddr_window(struct ssb_bus *bus, u32 address) { … } /* for enumeration use only */ u32 ssb_sdio_scan_read32(struct ssb_bus *bus, u16 offset) { … } /* for enumeration use only */ int ssb_sdio_scan_switch_coreidx(struct ssb_bus *bus, u8 coreidx) { … } /* host must be already claimed */ static int ssb_sdio_switch_core(struct ssb_bus *bus, struct ssb_device *dev) { … } static u8 ssb_sdio_read8(struct ssb_device *dev, u16 offset) { … } static u16 ssb_sdio_read16(struct ssb_device *dev, u16 offset) { … } static u32 ssb_sdio_read32(struct ssb_device *dev, u16 offset) { … } #ifdef CONFIG_SSB_BLOCKIO static void ssb_sdio_block_read(struct ssb_device *dev, void *buffer, size_t count, u16 offset, u8 reg_width) { … } #endif /* CONFIG_SSB_BLOCKIO */ static void ssb_sdio_write8(struct ssb_device *dev, u16 offset, u8 val) { … } static void ssb_sdio_write16(struct ssb_device *dev, u16 offset, u16 val) { … } static void ssb_sdio_write32(struct ssb_device *dev, u16 offset, u32 val) { … } #ifdef CONFIG_SSB_BLOCKIO static void ssb_sdio_block_write(struct ssb_device *dev, const void *buffer, size_t count, u16 offset, u8 reg_width) { … } #endif /* CONFIG_SSB_BLOCKIO */ /* Not "static", as it's used in main.c */ const struct ssb_bus_ops ssb_sdio_ops = …; #define GOTO_ERROR_ON(condition, description) … int ssb_sdio_get_invariants(struct ssb_bus *bus, struct ssb_init_invariants *iv) { … } void ssb_sdio_exit(struct ssb_bus *bus) { … } int ssb_sdio_init(struct ssb_bus *bus) { … }
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