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drivers/ssb/pcmcia.c
19.2 KB
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/* * Sonics Silicon Backplane * PCMCIA-Hostbus related functions * * Copyright 2006 Johannes Berg <johannes@sipsolutions.net> |
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* Copyright 2007-2008 Michael Buesch <m@bues.ch> |
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* * Licensed under the GNU/GPL. See COPYING for details. */ |
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#include "ssb_private.h" |
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#include <linux/ssb/ssb.h> #include <linux/delay.h> |
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#include <linux/io.h> |
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#include <linux/etherdevice.h> |
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#include <pcmcia/cistpl.h> #include <pcmcia/ciscode.h> #include <pcmcia/ds.h> #include <pcmcia/cisreg.h> |
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/* Define the following to 1 to enable a printk on each coreswitch. */ #define SSB_VERBOSE_PCMCIACORESWITCH_DEBUG 0 |
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/* PCMCIA configuration registers */ |
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#define SSB_PCMCIA_ADDRESS0 0x2E #define SSB_PCMCIA_ADDRESS1 0x30 #define SSB_PCMCIA_ADDRESS2 0x32 #define SSB_PCMCIA_MEMSEG 0x34 #define SSB_PCMCIA_SPROMCTL 0x36 #define SSB_PCMCIA_SPROMCTL_IDLE 0 #define SSB_PCMCIA_SPROMCTL_WRITE 1 #define SSB_PCMCIA_SPROMCTL_READ 2 #define SSB_PCMCIA_SPROMCTL_WRITEEN 4 #define SSB_PCMCIA_SPROMCTL_WRITEDIS 7 #define SSB_PCMCIA_SPROMCTL_DONE 8 #define SSB_PCMCIA_SPROM_DATALO 0x38 #define SSB_PCMCIA_SPROM_DATAHI 0x3A #define SSB_PCMCIA_SPROM_ADDRLO 0x3C #define SSB_PCMCIA_SPROM_ADDRHI 0x3E /* Hardware invariants CIS tuples */ #define SSB_PCMCIA_CIS 0x80 #define SSB_PCMCIA_CIS_ID 0x01 #define SSB_PCMCIA_CIS_BOARDREV 0x02 #define SSB_PCMCIA_CIS_PA 0x03 #define SSB_PCMCIA_CIS_PA_PA0B0_LO 0 #define SSB_PCMCIA_CIS_PA_PA0B0_HI 1 #define SSB_PCMCIA_CIS_PA_PA0B1_LO 2 #define SSB_PCMCIA_CIS_PA_PA0B1_HI 3 #define SSB_PCMCIA_CIS_PA_PA0B2_LO 4 #define SSB_PCMCIA_CIS_PA_PA0B2_HI 5 #define SSB_PCMCIA_CIS_PA_ITSSI 6 #define SSB_PCMCIA_CIS_PA_MAXPOW 7 #define SSB_PCMCIA_CIS_OEMNAME 0x04 #define SSB_PCMCIA_CIS_CCODE 0x05 #define SSB_PCMCIA_CIS_ANTENNA 0x06 #define SSB_PCMCIA_CIS_ANTGAIN 0x07 #define SSB_PCMCIA_CIS_BFLAGS 0x08 #define SSB_PCMCIA_CIS_LEDS 0x09 /* PCMCIA SPROM size. */ #define SSB_PCMCIA_SPROM_SIZE 256 #define SSB_PCMCIA_SPROM_SIZE_BYTES (SSB_PCMCIA_SPROM_SIZE * sizeof(u16)) /* Write to a PCMCIA configuration register. */ static int ssb_pcmcia_cfg_write(struct ssb_bus *bus, u8 offset, u8 value) { |
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int res; |
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res = pcmcia_write_config_byte(bus->host_pcmcia, offset, value); |
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if (unlikely(res != 0)) |
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return -EBUSY; return 0; } /* Read from a PCMCIA configuration register. */ static int ssb_pcmcia_cfg_read(struct ssb_bus *bus, u8 offset, u8 *value) { |
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int res; |
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res = pcmcia_read_config_byte(bus->host_pcmcia, offset, value); |
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if (unlikely(res != 0)) |
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return -EBUSY; |
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return 0; } |
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int ssb_pcmcia_switch_coreidx(struct ssb_bus *bus, u8 coreidx) { |
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int err; int attempts = 0; u32 cur_core; |
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u32 addr; u32 read_addr; |
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u8 val; |
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addr = (coreidx * SSB_CORE_SIZE) + SSB_ENUM_BASE; while (1) { |
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err = ssb_pcmcia_cfg_write(bus, SSB_PCMCIA_ADDRESS0, (addr & 0x0000F000) >> 12); if (err) |
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goto error; |
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err = ssb_pcmcia_cfg_write(bus, SSB_PCMCIA_ADDRESS1, (addr & 0x00FF0000) >> 16); if (err) |
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goto error; |
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err = ssb_pcmcia_cfg_write(bus, SSB_PCMCIA_ADDRESS2, (addr & 0xFF000000) >> 24); if (err) |
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goto error; read_addr = 0; |
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err = ssb_pcmcia_cfg_read(bus, SSB_PCMCIA_ADDRESS0, &val); if (err) |
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goto error; |
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read_addr |= ((u32)(val & 0x0F)) << 12; err = ssb_pcmcia_cfg_read(bus, SSB_PCMCIA_ADDRESS1, &val); if (err) |
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goto error; |
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read_addr |= ((u32)val) << 16; err = ssb_pcmcia_cfg_read(bus, SSB_PCMCIA_ADDRESS2, &val); if (err) |
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goto error; |
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read_addr |= ((u32)val) << 24; |
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cur_core = (read_addr - SSB_ENUM_BASE) / SSB_CORE_SIZE; if (cur_core == coreidx) break; |
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err = -ETIMEDOUT; |
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if (attempts++ > SSB_BAR0_MAX_RETRIES) goto error; udelay(10); } return 0; error: |
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pr_err("Failed to switch to core %u ", coreidx); |
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return err; |
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} |
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static int ssb_pcmcia_switch_core(struct ssb_bus *bus, struct ssb_device *dev) |
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{ int err; |
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#if SSB_VERBOSE_PCMCIACORESWITCH_DEBUG |
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pr_info("Switching to %s core, index %d ", ssb_core_name(dev->id.coreid), dev->core_index); |
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#endif |
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err = ssb_pcmcia_switch_coreidx(bus, dev->core_index); if (!err) bus->mapped_device = dev; |
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return err; } int ssb_pcmcia_switch_segment(struct ssb_bus *bus, u8 seg) { int attempts = 0; |
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int err; u8 val; |
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WARN_ON((seg != 0) && (seg != 1)); |
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while (1) { |
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err = ssb_pcmcia_cfg_write(bus, SSB_PCMCIA_MEMSEG, seg); if (err) |
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goto error; |
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err = ssb_pcmcia_cfg_read(bus, SSB_PCMCIA_MEMSEG, &val); if (err) |
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goto error; |
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if (val == seg) |
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break; |
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err = -ETIMEDOUT; |
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if (unlikely(attempts++ > SSB_BAR0_MAX_RETRIES)) goto error; udelay(10); } bus->mapped_pcmcia_seg = seg; |
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return 0; |
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error: |
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pr_err("Failed to switch pcmcia segment "); |
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return err; |
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} |
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static int select_core_and_segment(struct ssb_device *dev, u16 *offset) |
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{ |
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struct ssb_bus *bus = dev->bus; |
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int err; |
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u8 need_segment; if (*offset >= 0x800) { *offset -= 0x800; need_segment = 1; } else need_segment = 0; |
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if (unlikely(dev != bus->mapped_device)) { err = ssb_pcmcia_switch_core(bus, dev); if (unlikely(err)) return err; } |
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if (unlikely(need_segment != bus->mapped_pcmcia_seg)) { err = ssb_pcmcia_switch_segment(bus, need_segment); |
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if (unlikely(err)) return err; } |
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return 0; } |
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static u8 ssb_pcmcia_read8(struct ssb_device *dev, u16 offset) { struct ssb_bus *bus = dev->bus; unsigned long flags; int err; u8 value = 0xFF; spin_lock_irqsave(&bus->bar_lock, flags); err = select_core_and_segment(dev, &offset); if (likely(!err)) value = readb(bus->mmio + offset); spin_unlock_irqrestore(&bus->bar_lock, flags); return value; } |
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static u16 ssb_pcmcia_read16(struct ssb_device *dev, u16 offset) { struct ssb_bus *bus = dev->bus; |
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unsigned long flags; int err; u16 value = 0xFFFF; |
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spin_lock_irqsave(&bus->bar_lock, flags); err = select_core_and_segment(dev, &offset); if (likely(!err)) value = readw(bus->mmio + offset); spin_unlock_irqrestore(&bus->bar_lock, flags); |
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return value; |
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} static u32 ssb_pcmcia_read32(struct ssb_device *dev, u16 offset) { struct ssb_bus *bus = dev->bus; |
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unsigned long flags; int err; u32 lo = 0xFFFFFFFF, hi = 0xFFFFFFFF; |
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spin_lock_irqsave(&bus->bar_lock, flags); err = select_core_and_segment(dev, &offset); if (likely(!err)) { lo = readw(bus->mmio + offset); hi = readw(bus->mmio + offset + 2); } spin_unlock_irqrestore(&bus->bar_lock, flags); |
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return (lo | (hi << 16)); |
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} |
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#ifdef CONFIG_SSB_BLOCKIO static void ssb_pcmcia_block_read(struct ssb_device *dev, void *buffer, size_t count, u16 offset, u8 reg_width) { struct ssb_bus *bus = dev->bus; unsigned long flags; void __iomem *addr = bus->mmio + offset; int err; spin_lock_irqsave(&bus->bar_lock, flags); err = select_core_and_segment(dev, &offset); if (unlikely(err)) { memset(buffer, 0xFF, count); goto unlock; } switch (reg_width) { case sizeof(u8): { u8 *buf = buffer; while (count) { *buf = __raw_readb(addr); buf++; count--; } break; } case sizeof(u16): { __le16 *buf = buffer; |
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WARN_ON(count & 1); |
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while (count) { *buf = (__force __le16)__raw_readw(addr); buf++; count -= 2; } break; } case sizeof(u32): { __le16 *buf = buffer; |
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WARN_ON(count & 3); |
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while (count) { *buf = (__force __le16)__raw_readw(addr); buf++; *buf = (__force __le16)__raw_readw(addr + 2); buf++; count -= 4; } break; } default: |
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WARN_ON(1); |
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} unlock: spin_unlock_irqrestore(&bus->bar_lock, flags); } #endif /* CONFIG_SSB_BLOCKIO */ |
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static void ssb_pcmcia_write8(struct ssb_device *dev, u16 offset, u8 value) { struct ssb_bus *bus = dev->bus; unsigned long flags; int err; spin_lock_irqsave(&bus->bar_lock, flags); err = select_core_and_segment(dev, &offset); if (likely(!err)) writeb(value, bus->mmio + offset); |
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spin_unlock_irqrestore(&bus->bar_lock, flags); } |
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static void ssb_pcmcia_write16(struct ssb_device *dev, u16 offset, u16 value) { struct ssb_bus *bus = dev->bus; |
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unsigned long flags; int err; |
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spin_lock_irqsave(&bus->bar_lock, flags); err = select_core_and_segment(dev, &offset); if (likely(!err)) writew(value, bus->mmio + offset); |
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spin_unlock_irqrestore(&bus->bar_lock, flags); |
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} static void ssb_pcmcia_write32(struct ssb_device *dev, u16 offset, u32 value) { struct ssb_bus *bus = dev->bus; |
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unsigned long flags; int err; |
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spin_lock_irqsave(&bus->bar_lock, flags); err = select_core_and_segment(dev, &offset); if (likely(!err)) { writew((value & 0x0000FFFF), bus->mmio + offset); writew(((value & 0xFFFF0000) >> 16), bus->mmio + offset + 2); } |
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spin_unlock_irqrestore(&bus->bar_lock, flags); |
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} |
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#ifdef CONFIG_SSB_BLOCKIO static void ssb_pcmcia_block_write(struct ssb_device *dev, const void *buffer, size_t count, u16 offset, u8 reg_width) { struct ssb_bus *bus = dev->bus; unsigned long flags; void __iomem *addr = bus->mmio + offset; int err; spin_lock_irqsave(&bus->bar_lock, flags); err = select_core_and_segment(dev, &offset); if (unlikely(err)) goto unlock; switch (reg_width) { case sizeof(u8): { const u8 *buf = buffer; while (count) { __raw_writeb(*buf, addr); buf++; count--; } break; } case sizeof(u16): { const __le16 *buf = buffer; |
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WARN_ON(count & 1); |
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while (count) { __raw_writew((__force u16)(*buf), addr); buf++; count -= 2; } break; } case sizeof(u32): { const __le16 *buf = buffer; |
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while (count) { __raw_writew((__force u16)(*buf), addr); buf++; __raw_writew((__force u16)(*buf), addr + 2); buf++; count -= 4; } break; } default: |
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WARN_ON(1); |
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} unlock: |
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spin_unlock_irqrestore(&bus->bar_lock, flags); } #endif /* CONFIG_SSB_BLOCKIO */ |
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/* Not "static", as it's used in main.c */ const struct ssb_bus_ops ssb_pcmcia_ops = { |
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.read8 = ssb_pcmcia_read8, |
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.read16 = ssb_pcmcia_read16, .read32 = ssb_pcmcia_read32, |
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.write8 = ssb_pcmcia_write8, |
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.write16 = ssb_pcmcia_write16, .write32 = ssb_pcmcia_write32, |
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#ifdef CONFIG_SSB_BLOCKIO .block_read = ssb_pcmcia_block_read, .block_write = ssb_pcmcia_block_write, #endif |
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}; |
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static int ssb_pcmcia_sprom_command(struct ssb_bus *bus, u8 command) { unsigned int i; int err; u8 value; err = ssb_pcmcia_cfg_write(bus, SSB_PCMCIA_SPROMCTL, command); if (err) return err; for (i = 0; i < 1000; i++) { err = ssb_pcmcia_cfg_read(bus, SSB_PCMCIA_SPROMCTL, &value); if (err) return err; if (value & SSB_PCMCIA_SPROMCTL_DONE) return 0; udelay(10); } return -ETIMEDOUT; } /* offset is the 16bit word offset */ static int ssb_pcmcia_sprom_read(struct ssb_bus *bus, u16 offset, u16 *value) { int err; u8 lo, hi; offset *= 2; /* Make byte offset */ err = ssb_pcmcia_cfg_write(bus, SSB_PCMCIA_SPROM_ADDRLO, (offset & 0x00FF)); if (err) return err; err = ssb_pcmcia_cfg_write(bus, SSB_PCMCIA_SPROM_ADDRHI, (offset & 0xFF00) >> 8); if (err) return err; err = ssb_pcmcia_sprom_command(bus, SSB_PCMCIA_SPROMCTL_READ); if (err) return err; err = ssb_pcmcia_cfg_read(bus, SSB_PCMCIA_SPROM_DATALO, &lo); if (err) return err; err = ssb_pcmcia_cfg_read(bus, SSB_PCMCIA_SPROM_DATAHI, &hi); if (err) return err; *value = (lo | (((u16)hi) << 8)); return 0; } /* offset is the 16bit word offset */ static int ssb_pcmcia_sprom_write(struct ssb_bus *bus, u16 offset, u16 value) { int err; offset *= 2; /* Make byte offset */ err = ssb_pcmcia_cfg_write(bus, SSB_PCMCIA_SPROM_ADDRLO, (offset & 0x00FF)); if (err) return err; err = ssb_pcmcia_cfg_write(bus, SSB_PCMCIA_SPROM_ADDRHI, (offset & 0xFF00) >> 8); if (err) return err; err = ssb_pcmcia_cfg_write(bus, SSB_PCMCIA_SPROM_DATALO, (value & 0x00FF)); if (err) return err; err = ssb_pcmcia_cfg_write(bus, SSB_PCMCIA_SPROM_DATAHI, (value & 0xFF00) >> 8); if (err) return err; err = ssb_pcmcia_sprom_command(bus, SSB_PCMCIA_SPROMCTL_WRITE); if (err) return err; msleep(20); return 0; } /* Read the SPROM image. bufsize is in 16bit words. */ static int ssb_pcmcia_sprom_read_all(struct ssb_bus *bus, u16 *sprom) { int err, i; for (i = 0; i < SSB_PCMCIA_SPROM_SIZE; i++) { err = ssb_pcmcia_sprom_read(bus, i, &sprom[i]); if (err) return err; } return 0; } /* Write the SPROM image. size is in 16bit words. */ static int ssb_pcmcia_sprom_write_all(struct ssb_bus *bus, const u16 *sprom) { int i, err; bool failed = 0; size_t size = SSB_PCMCIA_SPROM_SIZE; |
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pr_notice("Writing SPROM. Do NOT turn off the power! Please stand by... "); |
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err = ssb_pcmcia_sprom_command(bus, SSB_PCMCIA_SPROMCTL_WRITEEN); if (err) { |
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pr_notice("Could not enable SPROM write access "); |
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return -EBUSY; } |
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pr_notice("[ 0%%"); |
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msleep(500); for (i = 0; i < size; i++) { if (i == size / 4) |
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pr_cont("25%%"); |
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else if (i == size / 2) |
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535 |
pr_cont("50%%"); |
e7ec2e323 ssb: Add SPROM/in... |
536 |
else if (i == (size * 3) / 4) |
b8b6069cf ssb: Remove home-... |
537 |
pr_cont("75%%"); |
e7ec2e323 ssb: Add SPROM/in... |
538 |
else if (i % 2) |
b8b6069cf ssb: Remove home-... |
539 |
pr_cont("."); |
e7ec2e323 ssb: Add SPROM/in... |
540 541 |
err = ssb_pcmcia_sprom_write(bus, i, sprom[i]); if (err) { |
b8b6069cf ssb: Remove home-... |
542 543 |
pr_notice("Failed to write to SPROM "); |
e7ec2e323 ssb: Add SPROM/in... |
544 545 546 547 548 549 |
failed = 1; break; } } err = ssb_pcmcia_sprom_command(bus, SSB_PCMCIA_SPROMCTL_WRITEDIS); if (err) { |
b8b6069cf ssb: Remove home-... |
550 551 |
pr_notice("Could not disable SPROM write access "); |
e7ec2e323 ssb: Add SPROM/in... |
552 553 554 555 |
failed = 1; } msleep(500); if (!failed) { |
b8b6069cf ssb: Remove home-... |
556 557 558 559 |
pr_cont("100%% ] "); pr_notice("SPROM written "); |
e7ec2e323 ssb: Add SPROM/in... |
560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 |
} return failed ? -EBUSY : 0; } static int ssb_pcmcia_sprom_check_crc(const u16 *sprom, size_t size) { //TODO return 0; } #define GOTO_ERROR_ON(condition, description) do { \ if (unlikely(condition)) { \ error_description = description; \ goto error; \ } \ } while (0) |
37ace3d41 pcmcia: convert s... |
577 578 579 |
static int ssb_pcmcia_get_mac(struct pcmcia_device *p_dev, tuple_t *tuple, void *priv) |
61e115a56 [SSB]: add Sonics... |
580 |
{ |
37ace3d41 pcmcia: convert s... |
581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 |
struct ssb_sprom *sprom = priv; if (tuple->TupleData[0] != CISTPL_FUNCE_LAN_NODE_ID) return -EINVAL; if (tuple->TupleDataLen != ETH_ALEN + 2) return -EINVAL; if (tuple->TupleData[1] != ETH_ALEN) return -EINVAL; memcpy(sprom->il0mac, &tuple->TupleData[2], ETH_ALEN); return 0; }; static int ssb_pcmcia_do_get_invariants(struct pcmcia_device *p_dev, tuple_t *tuple, void *priv) { struct ssb_init_invariants *iv = priv; |
e7ec2e323 ssb: Add SPROM/in... |
598 599 600 |
struct ssb_sprom *sprom = &iv->sprom; struct ssb_boardinfo *bi = &iv->boardinfo; const char *error_description; |
37ace3d41 pcmcia: convert s... |
601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 |
GOTO_ERROR_ON(tuple->TupleDataLen < 1, "VEN tpl < 1"); switch (tuple->TupleData[0]) { case SSB_PCMCIA_CIS_ID: GOTO_ERROR_ON((tuple->TupleDataLen != 5) && (tuple->TupleDataLen != 7), "id tpl size"); bi->vendor = tuple->TupleData[1] | ((u16)tuple->TupleData[2] << 8); break; case SSB_PCMCIA_CIS_BOARDREV: GOTO_ERROR_ON(tuple->TupleDataLen != 2, "boardrev tpl size"); sprom->board_rev = tuple->TupleData[1]; break; case SSB_PCMCIA_CIS_PA: GOTO_ERROR_ON((tuple->TupleDataLen != 9) && (tuple->TupleDataLen != 10), "pa tpl size"); sprom->pa0b0 = tuple->TupleData[1] | ((u16)tuple->TupleData[2] << 8); sprom->pa0b1 = tuple->TupleData[3] | ((u16)tuple->TupleData[4] << 8); sprom->pa0b2 = tuple->TupleData[5] | ((u16)tuple->TupleData[6] << 8); sprom->itssi_a = tuple->TupleData[7]; sprom->itssi_bg = tuple->TupleData[7]; sprom->maxpwr_a = tuple->TupleData[8]; sprom->maxpwr_bg = tuple->TupleData[8]; break; case SSB_PCMCIA_CIS_OEMNAME: /* We ignore this. */ break; case SSB_PCMCIA_CIS_CCODE: GOTO_ERROR_ON(tuple->TupleDataLen != 2, "ccode tpl size"); sprom->country_code = tuple->TupleData[1]; break; case SSB_PCMCIA_CIS_ANTENNA: GOTO_ERROR_ON(tuple->TupleDataLen != 2, "ant tpl size"); sprom->ant_available_a = tuple->TupleData[1]; sprom->ant_available_bg = tuple->TupleData[1]; break; case SSB_PCMCIA_CIS_ANTGAIN: GOTO_ERROR_ON(tuple->TupleDataLen != 2, "antg tpl size"); |
f8f8a660b ssb: remove 5GHz ... |
647 648 649 650 |
sprom->antenna_gain.a0 = tuple->TupleData[1]; sprom->antenna_gain.a1 = tuple->TupleData[1]; sprom->antenna_gain.a2 = tuple->TupleData[1]; sprom->antenna_gain.a3 = tuple->TupleData[1]; |
37ace3d41 pcmcia: convert s... |
651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 |
break; case SSB_PCMCIA_CIS_BFLAGS: GOTO_ERROR_ON((tuple->TupleDataLen != 3) && (tuple->TupleDataLen != 5), "bfl tpl size"); sprom->boardflags_lo = tuple->TupleData[1] | ((u16)tuple->TupleData[2] << 8); break; case SSB_PCMCIA_CIS_LEDS: GOTO_ERROR_ON(tuple->TupleDataLen != 5, "leds tpl size"); sprom->gpio0 = tuple->TupleData[1]; sprom->gpio1 = tuple->TupleData[2]; sprom->gpio2 = tuple->TupleData[3]; sprom->gpio3 = tuple->TupleData[4]; break; } return -ENOSPC; /* continue with next entry */ error: |
b8b6069cf ssb: Remove home-... |
671 672 673 |
pr_err("PCMCIA: Failed to fetch device invariants: %s ", error_description); |
37ace3d41 pcmcia: convert s... |
674 675 676 677 678 679 680 681 682 |
return -ENODEV; } int ssb_pcmcia_get_invariants(struct ssb_bus *bus, struct ssb_init_invariants *iv) { struct ssb_sprom *sprom = &iv->sprom; int res; |
e7ec2e323 ssb: Add SPROM/in... |
683 684 685 686 687 688 |
memset(sprom, 0xFF, sizeof(*sprom)); sprom->revision = 1; sprom->boardflags_lo = 0; sprom->boardflags_hi = 0; /* First fetch the MAC address. */ |
37ace3d41 pcmcia: convert s... |
689 690 691 |
res = pcmcia_loop_tuple(bus->host_pcmcia, CISTPL_FUNCE, ssb_pcmcia_get_mac, sprom); if (res != 0) { |
b8b6069cf ssb: Remove home-... |
692 693 |
pr_err("PCMCIA: Failed to fetch MAC address "); |
37ace3d41 pcmcia: convert s... |
694 |
return -ENODEV; |
e7ec2e323 ssb: Add SPROM/in... |
695 |
} |
e7ec2e323 ssb: Add SPROM/in... |
696 697 |
/* Fetch the vendor specific tuples. */ |
37ace3d41 pcmcia: convert s... |
698 |
res = pcmcia_loop_tuple(bus->host_pcmcia, SSB_PCMCIA_CIS, |
dd3cb6330 ssb-pcmcia: Fix p... |
699 |
ssb_pcmcia_do_get_invariants, iv); |
37ace3d41 pcmcia: convert s... |
700 701 |
if ((res == 0) || (res == -ENOSPC)) return 0; |
e7ec2e323 ssb: Add SPROM/in... |
702 |
|
b8b6069cf ssb: Remove home-... |
703 704 |
pr_err("PCMCIA: Failed to fetch device invariants "); |
e7ec2e323 ssb: Add SPROM/in... |
705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 |
return -ENODEV; } static ssize_t ssb_pcmcia_attr_sprom_show(struct device *pcmciadev, struct device_attribute *attr, char *buf) { struct pcmcia_device *pdev = container_of(pcmciadev, struct pcmcia_device, dev); struct ssb_bus *bus; bus = ssb_pcmcia_dev_to_bus(pdev); if (!bus) return -ENODEV; return ssb_attr_sprom_show(bus, buf, ssb_pcmcia_sprom_read_all); } static ssize_t ssb_pcmcia_attr_sprom_store(struct device *pcmciadev, struct device_attribute *attr, const char *buf, size_t count) { struct pcmcia_device *pdev = container_of(pcmciadev, struct pcmcia_device, dev); struct ssb_bus *bus; bus = ssb_pcmcia_dev_to_bus(pdev); if (!bus) return -ENODEV; return ssb_attr_sprom_store(bus, buf, count, ssb_pcmcia_sprom_check_crc, ssb_pcmcia_sprom_write_all); } static DEVICE_ATTR(ssb_sprom, 0600, ssb_pcmcia_attr_sprom_show, ssb_pcmcia_attr_sprom_store); |
9788ba750 ssb-pcmcia: IRQ a... |
744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 |
static int ssb_pcmcia_cor_setup(struct ssb_bus *bus, u8 cor) { u8 val; int err; err = ssb_pcmcia_cfg_read(bus, cor, &val); if (err) return err; val &= ~COR_SOFT_RESET; val |= COR_FUNC_ENA | COR_IREQ_ENA | COR_LEVEL_REQ; err = ssb_pcmcia_cfg_write(bus, cor, val); if (err) return err; msleep(40); return 0; } |
8fe2b65a1 ssb: Turn suspend... |
761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 |
/* Initialize the PCMCIA hardware. This is called on Init and Resume. */ int ssb_pcmcia_hardware_setup(struct ssb_bus *bus) { int err; if (bus->bustype != SSB_BUSTYPE_PCMCIA) return 0; /* Switch segment to a known state and sync * bus->mapped_pcmcia_seg with hardware state. */ ssb_pcmcia_switch_segment(bus, 0); /* Init the COR register. */ err = ssb_pcmcia_cor_setup(bus, CISREG_COR); if (err) return err; /* Some cards also need this register to get poked. */ err = ssb_pcmcia_cor_setup(bus, CISREG_COR + 0x80); if (err) return err; return 0; } |
e7ec2e323 ssb: Add SPROM/in... |
783 784 785 786 787 788 |
void ssb_pcmcia_exit(struct ssb_bus *bus) { if (bus->bustype != SSB_BUSTYPE_PCMCIA) return; device_remove_file(&bus->host_pcmcia->dev, &dev_attr_ssb_sprom); |
61e115a56 [SSB]: add Sonics... |
789 790 791 792 |
} int ssb_pcmcia_init(struct ssb_bus *bus) { |
61e115a56 [SSB]: add Sonics... |
793 794 795 796 |
int err; if (bus->bustype != SSB_BUSTYPE_PCMCIA) return 0; |
8fe2b65a1 ssb: Turn suspend... |
797 |
err = ssb_pcmcia_hardware_setup(bus); |
e7ec2e323 ssb: Add SPROM/in... |
798 799 800 801 802 803 804 |
if (err) goto error; bus->sprom_size = SSB_PCMCIA_SPROM_SIZE; mutex_init(&bus->sprom_mutex); err = device_create_file(&bus->host_pcmcia->dev, &dev_attr_ssb_sprom); if (err) |
61e115a56 [SSB]: add Sonics... |
805 806 807 808 |
goto error; return 0; error: |
b8b6069cf ssb: Remove home-... |
809 810 |
pr_err("Failed to initialize PCMCIA host device "); |
e7ec2e323 ssb: Add SPROM/in... |
811 |
return err; |
61e115a56 [SSB]: add Sonics... |
812 |
} |