| /* |
| * Sonics Silicon Backplane PCI-Hostbus related functions. |
| * |
| * Copyright (C) 2005-2006 Michael Buesch <m@bues.ch> |
| * Copyright (C) 2005 Martin Langer <martin-langer@gmx.de> |
| * Copyright (C) 2005 Stefano Brivio <st3@riseup.net> |
| * Copyright (C) 2005 Danny van Dyk <kugelfang@gentoo.org> |
| * Copyright (C) 2005 Andreas Jaggi <andreas.jaggi@waterwave.ch> |
| * |
| * Derived from the Broadcom 4400 device driver. |
| * Copyright (C) 2002 David S. Miller (davem@redhat.com) |
| * Fixed by Pekka Pietikainen (pp@ee.oulu.fi) |
| * Copyright (C) 2006 Broadcom Corporation. |
| * |
| * Licensed under the GNU/GPL. See COPYING for details. |
| */ |
| |
| #include <linux/ssb/ssb.h> |
| #include <linux/ssb/ssb_regs.h> |
| #include <linux/slab.h> |
| #include <linux/pci.h> |
| #include <linux/delay.h> |
| |
| #include "ssb_private.h" |
| |
| |
| /* Define the following to 1 to enable a printk on each coreswitch. */ |
| #define SSB_VERBOSE_PCICORESWITCH_DEBUG 0 |
| |
| |
| /* Lowlevel coreswitching */ |
| int ssb_pci_switch_coreidx(struct ssb_bus *bus, u8 coreidx) |
| { |
| int err; |
| int attempts = 0; |
| u32 cur_core; |
| |
| while (1) { |
| err = pci_write_config_dword(bus->host_pci, SSB_BAR0_WIN, |
| (coreidx * SSB_CORE_SIZE) |
| + SSB_ENUM_BASE); |
| if (err) |
| goto error; |
| err = pci_read_config_dword(bus->host_pci, SSB_BAR0_WIN, |
| &cur_core); |
| if (err) |
| goto error; |
| cur_core = (cur_core - SSB_ENUM_BASE) |
| / SSB_CORE_SIZE; |
| if (cur_core == coreidx) |
| break; |
| |
| if (attempts++ > SSB_BAR0_MAX_RETRIES) |
| goto error; |
| udelay(10); |
| } |
| return 0; |
| error: |
| ssb_printk(KERN_ERR PFX "Failed to switch to core %u\n", coreidx); |
| return -ENODEV; |
| } |
| |
| int ssb_pci_switch_core(struct ssb_bus *bus, |
| struct ssb_device *dev) |
| { |
| int err; |
| unsigned long flags; |
| |
| #if SSB_VERBOSE_PCICORESWITCH_DEBUG |
| ssb_printk(KERN_INFO PFX |
| "Switching to %s core, index %d\n", |
| ssb_core_name(dev->id.coreid), |
| dev->core_index); |
| #endif |
| |
| spin_lock_irqsave(&bus->bar_lock, flags); |
| err = ssb_pci_switch_coreidx(bus, dev->core_index); |
| if (!err) |
| bus->mapped_device = dev; |
| spin_unlock_irqrestore(&bus->bar_lock, flags); |
| |
| return err; |
| } |
| |
| /* Enable/disable the on board crystal oscillator and/or PLL. */ |
| int ssb_pci_xtal(struct ssb_bus *bus, u32 what, int turn_on) |
| { |
| int err; |
| u32 in, out, outenable; |
| u16 pci_status; |
| |
| if (bus->bustype != SSB_BUSTYPE_PCI) |
| return 0; |
| |
| err = pci_read_config_dword(bus->host_pci, SSB_GPIO_IN, &in); |
| if (err) |
| goto err_pci; |
| err = pci_read_config_dword(bus->host_pci, SSB_GPIO_OUT, &out); |
| if (err) |
| goto err_pci; |
| err = pci_read_config_dword(bus->host_pci, SSB_GPIO_OUT_ENABLE, &outenable); |
| if (err) |
| goto err_pci; |
| |
| outenable |= what; |
| |
| if (turn_on) { |
| /* Avoid glitching the clock if GPRS is already using it. |
| * We can't actually read the state of the PLLPD so we infer it |
| * by the value of XTAL_PU which *is* readable via gpioin. |
| */ |
| if (!(in & SSB_GPIO_XTAL)) { |
| if (what & SSB_GPIO_XTAL) { |
| /* Turn the crystal on */ |
| out |= SSB_GPIO_XTAL; |
| if (what & SSB_GPIO_PLL) |
| out |= SSB_GPIO_PLL; |
| err = pci_write_config_dword(bus->host_pci, SSB_GPIO_OUT, out); |
| if (err) |
| goto err_pci; |
| err = pci_write_config_dword(bus->host_pci, SSB_GPIO_OUT_ENABLE, |
| outenable); |
| if (err) |
| goto err_pci; |
| msleep(1); |
| } |
| if (what & SSB_GPIO_PLL) { |
| /* Turn the PLL on */ |
| out &= ~SSB_GPIO_PLL; |
| err = pci_write_config_dword(bus->host_pci, SSB_GPIO_OUT, out); |
| if (err) |
| goto err_pci; |
| msleep(5); |
| } |
| } |
| |
| err = pci_read_config_word(bus->host_pci, PCI_STATUS, &pci_status); |
| if (err) |
| goto err_pci; |
| pci_status &= ~PCI_STATUS_SIG_TARGET_ABORT; |
| err = pci_write_config_word(bus->host_pci, PCI_STATUS, pci_status); |
| if (err) |
| goto err_pci; |
| } else { |
| if (what & SSB_GPIO_XTAL) { |
| /* Turn the crystal off */ |
| out &= ~SSB_GPIO_XTAL; |
| } |
| if (what & SSB_GPIO_PLL) { |
| /* Turn the PLL off */ |
| out |= SSB_GPIO_PLL; |
| } |
| err = pci_write_config_dword(bus->host_pci, SSB_GPIO_OUT, out); |
| if (err) |
| goto err_pci; |
| err = pci_write_config_dword(bus->host_pci, SSB_GPIO_OUT_ENABLE, outenable); |
| if (err) |
| goto err_pci; |
| } |
| |
| out: |
| return err; |
| |
| err_pci: |
| printk(KERN_ERR PFX "Error: ssb_pci_xtal() could not access PCI config space!\n"); |
| err = -EBUSY; |
| goto out; |
| } |
| |
| /* Get the word-offset for a SSB_SPROM_XXX define. */ |
| #define SPOFF(offset) ((offset) / sizeof(u16)) |
| /* Helper to extract some _offset, which is one of the SSB_SPROM_XXX defines. */ |
| #define SPEX16(_outvar, _offset, _mask, _shift) \ |
| out->_outvar = ((in[SPOFF(_offset)] & (_mask)) >> (_shift)) |
| #define SPEX32(_outvar, _offset, _mask, _shift) \ |
| out->_outvar = ((((u32)in[SPOFF((_offset)+2)] << 16 | \ |
| in[SPOFF(_offset)]) & (_mask)) >> (_shift)) |
| #define SPEX(_outvar, _offset, _mask, _shift) \ |
| SPEX16(_outvar, _offset, _mask, _shift) |
| |
| |
| static inline u8 ssb_crc8(u8 crc, u8 data) |
| { |
| /* Polynomial: x^8 + x^7 + x^6 + x^4 + x^2 + 1 */ |
| static const u8 t[] = { |
| 0x00, 0xF7, 0xB9, 0x4E, 0x25, 0xD2, 0x9C, 0x6B, |
| 0x4A, 0xBD, 0xF3, 0x04, 0x6F, 0x98, 0xD6, 0x21, |
| 0x94, 0x63, 0x2D, 0xDA, 0xB1, 0x46, 0x08, 0xFF, |
| 0xDE, 0x29, 0x67, 0x90, 0xFB, 0x0C, 0x42, 0xB5, |
| 0x7F, 0x88, 0xC6, 0x31, 0x5A, 0xAD, 0xE3, 0x14, |
| 0x35, 0xC2, 0x8C, 0x7B, 0x10, 0xE7, 0xA9, 0x5E, |
| 0xEB, 0x1C, 0x52, 0xA5, 0xCE, 0x39, 0x77, 0x80, |
| 0xA1, 0x56, 0x18, 0xEF, 0x84, 0x73, 0x3D, 0xCA, |
| 0xFE, 0x09, 0x47, 0xB0, 0xDB, 0x2C, 0x62, 0x95, |
| 0xB4, 0x43, 0x0D, 0xFA, 0x91, 0x66, 0x28, 0xDF, |
| 0x6A, 0x9D, 0xD3, 0x24, 0x4F, 0xB8, 0xF6, 0x01, |
| 0x20, 0xD7, 0x99, 0x6E, 0x05, 0xF2, 0xBC, 0x4B, |
| 0x81, 0x76, 0x38, 0xCF, 0xA4, 0x53, 0x1D, 0xEA, |
| 0xCB, 0x3C, 0x72, 0x85, 0xEE, 0x19, 0x57, 0xA0, |
| 0x15, 0xE2, 0xAC, 0x5B, 0x30, 0xC7, 0x89, 0x7E, |
| 0x5F, 0xA8, 0xE6, 0x11, 0x7A, 0x8D, 0xC3, 0x34, |
| 0xAB, 0x5C, 0x12, 0xE5, 0x8E, 0x79, 0x37, 0xC0, |
| 0xE1, 0x16, 0x58, 0xAF, 0xC4, 0x33, 0x7D, 0x8A, |
| 0x3F, 0xC8, 0x86, 0x71, 0x1A, 0xED, 0xA3, 0x54, |
| 0x75, 0x82, 0xCC, 0x3B, 0x50, 0xA7, 0xE9, 0x1E, |
| 0xD4, 0x23, 0x6D, 0x9A, 0xF1, 0x06, 0x48, 0xBF, |
| 0x9E, 0x69, 0x27, 0xD0, 0xBB, 0x4C, 0x02, 0xF5, |
| 0x40, 0xB7, 0xF9, 0x0E, 0x65, 0x92, 0xDC, 0x2B, |
| 0x0A, 0xFD, 0xB3, 0x44, 0x2F, 0xD8, 0x96, 0x61, |
| 0x55, 0xA2, 0xEC, 0x1B, 0x70, 0x87, 0xC9, 0x3E, |
| 0x1F, 0xE8, 0xA6, 0x51, 0x3A, 0xCD, 0x83, 0x74, |
| 0xC1, 0x36, 0x78, 0x8F, 0xE4, 0x13, 0x5D, 0xAA, |
| 0x8B, 0x7C, 0x32, 0xC5, 0xAE, 0x59, 0x17, 0xE0, |
| 0x2A, 0xDD, 0x93, 0x64, 0x0F, 0xF8, 0xB6, 0x41, |
| 0x60, 0x97, 0xD9, 0x2E, 0x45, 0xB2, 0xFC, 0x0B, |
| 0xBE, 0x49, 0x07, 0xF0, 0x9B, 0x6C, 0x22, 0xD5, |
| 0xF4, 0x03, 0x4D, 0xBA, 0xD1, 0x26, 0x68, 0x9F, |
| }; |
| return t[crc ^ data]; |
| } |
| |
| static u8 ssb_sprom_crc(const u16 *sprom, u16 size) |
| { |
| int word; |
| u8 crc = 0xFF; |
| |
| for (word = 0; word < size - 1; word++) { |
| crc = ssb_crc8(crc, sprom[word] & 0x00FF); |
| crc = ssb_crc8(crc, (sprom[word] & 0xFF00) >> 8); |
| } |
| crc = ssb_crc8(crc, sprom[size - 1] & 0x00FF); |
| crc ^= 0xFF; |
| |
| return crc; |
| } |
| |
| static int sprom_check_crc(const u16 *sprom, size_t size) |
| { |
| u8 crc; |
| u8 expected_crc; |
| u16 tmp; |
| |
| crc = ssb_sprom_crc(sprom, size); |
| tmp = sprom[size - 1] & SSB_SPROM_REVISION_CRC; |
| expected_crc = tmp >> SSB_SPROM_REVISION_CRC_SHIFT; |
| if (crc != expected_crc) |
| return -EPROTO; |
| |
| return 0; |
| } |
| |
| static int sprom_do_read(struct ssb_bus *bus, u16 *sprom) |
| { |
| int i; |
| |
| for (i = 0; i < bus->sprom_size; i++) |
| sprom[i] = ioread16(bus->mmio + bus->sprom_offset + (i * 2)); |
| |
| return 0; |
| } |
| |
| static int sprom_do_write(struct ssb_bus *bus, const u16 *sprom) |
| { |
| struct pci_dev *pdev = bus->host_pci; |
| int i, err; |
| u32 spromctl; |
| u16 size = bus->sprom_size; |
| |
| ssb_printk(KERN_NOTICE PFX "Writing SPROM. Do NOT turn off the power! Please stand by...\n"); |
| err = pci_read_config_dword(pdev, SSB_SPROMCTL, &spromctl); |
| if (err) |
| goto err_ctlreg; |
| spromctl |= SSB_SPROMCTL_WE; |
| err = pci_write_config_dword(pdev, SSB_SPROMCTL, spromctl); |
| if (err) |
| goto err_ctlreg; |
| ssb_printk(KERN_NOTICE PFX "[ 0%%"); |
| msleep(500); |
| for (i = 0; i < size; i++) { |
| if (i == size / 4) |
| ssb_printk("25%%"); |
| else if (i == size / 2) |
| ssb_printk("50%%"); |
| else if (i == (size * 3) / 4) |
| ssb_printk("75%%"); |
| else if (i % 2) |
| ssb_printk("."); |
| writew(sprom[i], bus->mmio + bus->sprom_offset + (i * 2)); |
| mmiowb(); |
| msleep(20); |
| } |
| err = pci_read_config_dword(pdev, SSB_SPROMCTL, &spromctl); |
| if (err) |
| goto err_ctlreg; |
| spromctl &= ~SSB_SPROMCTL_WE; |
| err = pci_write_config_dword(pdev, SSB_SPROMCTL, spromctl); |
| if (err) |
| goto err_ctlreg; |
| msleep(500); |
| ssb_printk("100%% ]\n"); |
| ssb_printk(KERN_NOTICE PFX "SPROM written.\n"); |
| |
| return 0; |
| err_ctlreg: |
| ssb_printk(KERN_ERR PFX "Could not access SPROM control register.\n"); |
| return err; |
| } |
| |
| static s8 r123_extract_antgain(u8 sprom_revision, const u16 *in, |
| u16 mask, u16 shift) |
| { |
| u16 v; |
| u8 gain; |
| |
| v = in[SPOFF(SSB_SPROM1_AGAIN)]; |
| gain = (v & mask) >> shift; |
| if (gain == 0xFF) |
| gain = 2; /* If unset use 2dBm */ |
| if (sprom_revision == 1) { |
| /* Convert to Q5.2 */ |
| gain <<= 2; |
| } else { |
| /* Q5.2 Fractional part is stored in 0xC0 */ |
| gain = ((gain & 0xC0) >> 6) | ((gain & 0x3F) << 2); |
| } |
| |
| return (s8)gain; |
| } |
| |
| static void sprom_extract_r123(struct ssb_sprom *out, const u16 *in) |
| { |
| int i; |
| u16 v; |
| s8 gain; |
| u16 loc[3]; |
| |
| if (out->revision == 3) /* rev 3 moved MAC */ |
| loc[0] = SSB_SPROM3_IL0MAC; |
| else { |
| loc[0] = SSB_SPROM1_IL0MAC; |
| loc[1] = SSB_SPROM1_ET0MAC; |
| loc[2] = SSB_SPROM1_ET1MAC; |
| } |
| for (i = 0; i < 3; i++) { |
| v = in[SPOFF(loc[0]) + i]; |
| *(((__be16 *)out->il0mac) + i) = cpu_to_be16(v); |
| } |
| if (out->revision < 3) { /* only rev 1-2 have et0, et1 */ |
| for (i = 0; i < 3; i++) { |
| v = in[SPOFF(loc[1]) + i]; |
| *(((__be16 *)out->et0mac) + i) = cpu_to_be16(v); |
| } |
| for (i = 0; i < 3; i++) { |
| v = in[SPOFF(loc[2]) + i]; |
| *(((__be16 *)out->et1mac) + i) = cpu_to_be16(v); |
| } |
| } |
| SPEX(et0phyaddr, SSB_SPROM1_ETHPHY, SSB_SPROM1_ETHPHY_ET0A, 0); |
| SPEX(et1phyaddr, SSB_SPROM1_ETHPHY, SSB_SPROM1_ETHPHY_ET1A, |
| SSB_SPROM1_ETHPHY_ET1A_SHIFT); |
| SPEX(et0mdcport, SSB_SPROM1_ETHPHY, SSB_SPROM1_ETHPHY_ET0M, 14); |
| SPEX(et1mdcport, SSB_SPROM1_ETHPHY, SSB_SPROM1_ETHPHY_ET1M, 15); |
| SPEX(board_rev, SSB_SPROM1_BINF, SSB_SPROM1_BINF_BREV, 0); |
| SPEX(country_code, SSB_SPROM1_BINF, SSB_SPROM1_BINF_CCODE, |
| SSB_SPROM1_BINF_CCODE_SHIFT); |
| SPEX(ant_available_a, SSB_SPROM1_BINF, SSB_SPROM1_BINF_ANTA, |
| SSB_SPROM1_BINF_ANTA_SHIFT); |
| SPEX(ant_available_bg, SSB_SPROM1_BINF, SSB_SPROM1_BINF_ANTBG, |
| SSB_SPROM1_BINF_ANTBG_SHIFT); |
| SPEX(pa0b0, SSB_SPROM1_PA0B0, 0xFFFF, 0); |
| SPEX(pa0b1, SSB_SPROM1_PA0B1, 0xFFFF, 0); |
| SPEX(pa0b2, SSB_SPROM1_PA0B2, 0xFFFF, 0); |
| SPEX(pa1b0, SSB_SPROM1_PA1B0, 0xFFFF, 0); |
| SPEX(pa1b1, SSB_SPROM1_PA1B1, 0xFFFF, 0); |
| SPEX(pa1b2, SSB_SPROM1_PA1B2, 0xFFFF, 0); |
| SPEX(gpio0, SSB_SPROM1_GPIOA, SSB_SPROM1_GPIOA_P0, 0); |
| SPEX(gpio1, SSB_SPROM1_GPIOA, SSB_SPROM1_GPIOA_P1, |
| SSB_SPROM1_GPIOA_P1_SHIFT); |
| SPEX(gpio2, SSB_SPROM1_GPIOB, SSB_SPROM1_GPIOB_P2, 0); |
| SPEX(gpio3, SSB_SPROM1_GPIOB, SSB_SPROM1_GPIOB_P3, |
| SSB_SPROM1_GPIOB_P3_SHIFT); |
| SPEX(maxpwr_a, SSB_SPROM1_MAXPWR, SSB_SPROM1_MAXPWR_A, |
| SSB_SPROM1_MAXPWR_A_SHIFT); |
| SPEX(maxpwr_bg, SSB_SPROM1_MAXPWR, SSB_SPROM1_MAXPWR_BG, 0); |
| SPEX(itssi_a, SSB_SPROM1_ITSSI, SSB_SPROM1_ITSSI_A, |
| SSB_SPROM1_ITSSI_A_SHIFT); |
| SPEX(itssi_bg, SSB_SPROM1_ITSSI, SSB_SPROM1_ITSSI_BG, 0); |
| SPEX(boardflags_lo, SSB_SPROM1_BFLLO, 0xFFFF, 0); |
| if (out->revision >= 2) |
| SPEX(boardflags_hi, SSB_SPROM2_BFLHI, 0xFFFF, 0); |
| |
| /* Extract the antenna gain values. */ |
| gain = r123_extract_antgain(out->revision, in, |
| SSB_SPROM1_AGAIN_BG, |
| SSB_SPROM1_AGAIN_BG_SHIFT); |
| out->antenna_gain.ghz24.a0 = gain; |
| out->antenna_gain.ghz24.a1 = gain; |
| out->antenna_gain.ghz24.a2 = gain; |
| out->antenna_gain.ghz24.a3 = gain; |
| gain = r123_extract_antgain(out->revision, in, |
| SSB_SPROM1_AGAIN_A, |
| SSB_SPROM1_AGAIN_A_SHIFT); |
| out->antenna_gain.ghz5.a0 = gain; |
| out->antenna_gain.ghz5.a1 = gain; |
| out->antenna_gain.ghz5.a2 = gain; |
| out->antenna_gain.ghz5.a3 = gain; |
| } |
| |
| /* Revs 4 5 and 8 have partially shared layout */ |
| static void sprom_extract_r458(struct ssb_sprom *out, const u16 *in) |
| { |
| SPEX(txpid2g[0], SSB_SPROM4_TXPID2G01, |
| SSB_SPROM4_TXPID2G0, SSB_SPROM4_TXPID2G0_SHIFT); |
| SPEX(txpid2g[1], SSB_SPROM4_TXPID2G01, |
| SSB_SPROM4_TXPID2G1, SSB_SPROM4_TXPID2G1_SHIFT); |
| SPEX(txpid2g[2], SSB_SPROM4_TXPID2G23, |
| SSB_SPROM4_TXPID2G2, SSB_SPROM4_TXPID2G2_SHIFT); |
| SPEX(txpid2g[3], SSB_SPROM4_TXPID2G23, |
| SSB_SPROM4_TXPID2G3, SSB_SPROM4_TXPID2G3_SHIFT); |
| |
| SPEX(txpid5gl[0], SSB_SPROM4_TXPID5GL01, |
| SSB_SPROM4_TXPID5GL0, SSB_SPROM4_TXPID5GL0_SHIFT); |
| SPEX(txpid5gl[1], SSB_SPROM4_TXPID5GL01, |
| SSB_SPROM4_TXPID5GL1, SSB_SPROM4_TXPID5GL1_SHIFT); |
| SPEX(txpid5gl[2], SSB_SPROM4_TXPID5GL23, |
| SSB_SPROM4_TXPID5GL2, SSB_SPROM4_TXPID5GL2_SHIFT); |
| SPEX(txpid5gl[3], SSB_SPROM4_TXPID5GL23, |
| SSB_SPROM4_TXPID5GL3, SSB_SPROM4_TXPID5GL3_SHIFT); |
| |
| SPEX(txpid5g[0], SSB_SPROM4_TXPID5G01, |
| SSB_SPROM4_TXPID5G0, SSB_SPROM4_TXPID5G0_SHIFT); |
| SPEX(txpid5g[1], SSB_SPROM4_TXPID5G01, |
| SSB_SPROM4_TXPID5G1, SSB_SPROM4_TXPID5G1_SHIFT); |
| SPEX(txpid5g[2], SSB_SPROM4_TXPID5G23, |
| SSB_SPROM4_TXPID5G2, SSB_SPROM4_TXPID5G2_SHIFT); |
| SPEX(txpid5g[3], SSB_SPROM4_TXPID5G23, |
| SSB_SPROM4_TXPID5G3, SSB_SPROM4_TXPID5G3_SHIFT); |
| |
| SPEX(txpid5gh[0], SSB_SPROM4_TXPID5GH01, |
| SSB_SPROM4_TXPID5GH0, SSB_SPROM4_TXPID5GH0_SHIFT); |
| SPEX(txpid5gh[1], SSB_SPROM4_TXPID5GH01, |
| SSB_SPROM4_TXPID5GH1, SSB_SPROM4_TXPID5GH1_SHIFT); |
| SPEX(txpid5gh[2], SSB_SPROM4_TXPID5GH23, |
| SSB_SPROM4_TXPID5GH2, SSB_SPROM4_TXPID5GH2_SHIFT); |
| SPEX(txpid5gh[3], SSB_SPROM4_TXPID5GH23, |
| SSB_SPROM4_TXPID5GH3, SSB_SPROM4_TXPID5GH3_SHIFT); |
| } |
| |
| static void sprom_extract_r45(struct ssb_sprom *out, const u16 *in) |
| { |
| int i; |
| u16 v; |
| u16 il0mac_offset; |
| |
| if (out->revision == 4) |
| il0mac_offset = SSB_SPROM4_IL0MAC; |
| else |
| il0mac_offset = SSB_SPROM5_IL0MAC; |
| /* extract the MAC address */ |
| for (i = 0; i < 3; i++) { |
| v = in[SPOFF(il0mac_offset) + i]; |
| *(((__be16 *)out->il0mac) + i) = cpu_to_be16(v); |
| } |
| SPEX(et0phyaddr, SSB_SPROM4_ETHPHY, SSB_SPROM4_ETHPHY_ET0A, 0); |
| SPEX(et1phyaddr, SSB_SPROM4_ETHPHY, SSB_SPROM4_ETHPHY_ET1A, |
| SSB_SPROM4_ETHPHY_ET1A_SHIFT); |
| if (out->revision == 4) { |
| SPEX(country_code, SSB_SPROM4_CCODE, 0xFFFF, 0); |
| SPEX(boardflags_lo, SSB_SPROM4_BFLLO, 0xFFFF, 0); |
| SPEX(boardflags_hi, SSB_SPROM4_BFLHI, 0xFFFF, 0); |
| SPEX(boardflags2_lo, SSB_SPROM4_BFL2LO, 0xFFFF, 0); |
| SPEX(boardflags2_hi, SSB_SPROM4_BFL2HI, 0xFFFF, 0); |
| } else { |
| SPEX(country_code, SSB_SPROM5_CCODE, 0xFFFF, 0); |
| SPEX(boardflags_lo, SSB_SPROM5_BFLLO, 0xFFFF, 0); |
| SPEX(boardflags_hi, SSB_SPROM5_BFLHI, 0xFFFF, 0); |
| SPEX(boardflags2_lo, SSB_SPROM5_BFL2LO, 0xFFFF, 0); |
| SPEX(boardflags2_hi, SSB_SPROM5_BFL2HI, 0xFFFF, 0); |
| } |
| SPEX(ant_available_a, SSB_SPROM4_ANTAVAIL, SSB_SPROM4_ANTAVAIL_A, |
| SSB_SPROM4_ANTAVAIL_A_SHIFT); |
| SPEX(ant_available_bg, SSB_SPROM4_ANTAVAIL, SSB_SPROM4_ANTAVAIL_BG, |
| SSB_SPROM4_ANTAVAIL_BG_SHIFT); |
| SPEX(maxpwr_bg, SSB_SPROM4_MAXP_BG, SSB_SPROM4_MAXP_BG_MASK, 0); |
| SPEX(itssi_bg, SSB_SPROM4_MAXP_BG, SSB_SPROM4_ITSSI_BG, |
| SSB_SPROM4_ITSSI_BG_SHIFT); |
| SPEX(maxpwr_a, SSB_SPROM4_MAXP_A, SSB_SPROM4_MAXP_A_MASK, 0); |
| SPEX(itssi_a, SSB_SPROM4_MAXP_A, SSB_SPROM4_ITSSI_A, |
| SSB_SPROM4_ITSSI_A_SHIFT); |
| if (out->revision == 4) { |
| SPEX(gpio0, SSB_SPROM4_GPIOA, SSB_SPROM4_GPIOA_P0, 0); |
| SPEX(gpio1, SSB_SPROM4_GPIOA, SSB_SPROM4_GPIOA_P1, |
| SSB_SPROM4_GPIOA_P1_SHIFT); |
| SPEX(gpio2, SSB_SPROM4_GPIOB, SSB_SPROM4_GPIOB_P2, 0); |
| SPEX(gpio3, SSB_SPROM4_GPIOB, SSB_SPROM4_GPIOB_P3, |
| SSB_SPROM4_GPIOB_P3_SHIFT); |
| } else { |
| SPEX(gpio0, SSB_SPROM5_GPIOA, SSB_SPROM5_GPIOA_P0, 0); |
| SPEX(gpio1, SSB_SPROM5_GPIOA, SSB_SPROM5_GPIOA_P1, |
| SSB_SPROM5_GPIOA_P1_SHIFT); |
| SPEX(gpio2, SSB_SPROM5_GPIOB, SSB_SPROM5_GPIOB_P2, 0); |
| SPEX(gpio3, SSB_SPROM5_GPIOB, SSB_SPROM5_GPIOB_P3, |
| SSB_SPROM5_GPIOB_P3_SHIFT); |
| } |
| |
| /* Extract the antenna gain values. */ |
| SPEX(antenna_gain.ghz24.a0, SSB_SPROM4_AGAIN01, |
| SSB_SPROM4_AGAIN0, SSB_SPROM4_AGAIN0_SHIFT); |
| SPEX(antenna_gain.ghz24.a1, SSB_SPROM4_AGAIN01, |
| SSB_SPROM4_AGAIN1, SSB_SPROM4_AGAIN1_SHIFT); |
| SPEX(antenna_gain.ghz24.a2, SSB_SPROM4_AGAIN23, |
| SSB_SPROM4_AGAIN2, SSB_SPROM4_AGAIN2_SHIFT); |
| SPEX(antenna_gain.ghz24.a3, SSB_SPROM4_AGAIN23, |
| SSB_SPROM4_AGAIN3, SSB_SPROM4_AGAIN3_SHIFT); |
| memcpy(&out->antenna_gain.ghz5, &out->antenna_gain.ghz24, |
| sizeof(out->antenna_gain.ghz5)); |
| |
| sprom_extract_r458(out, in); |
| |
| /* TODO - get remaining rev 4 stuff needed */ |
| } |
| |
| static void sprom_extract_r8(struct ssb_sprom *out, const u16 *in) |
| { |
| int i; |
| u16 v; |
| |
| /* extract the MAC address */ |
| for (i = 0; i < 3; i++) { |
| v = in[SPOFF(SSB_SPROM8_IL0MAC) + i]; |
| *(((__be16 *)out->il0mac) + i) = cpu_to_be16(v); |
| } |
| SPEX(country_code, SSB_SPROM8_CCODE, 0xFFFF, 0); |
| SPEX(boardflags_lo, SSB_SPROM8_BFLLO, 0xFFFF, 0); |
| SPEX(boardflags_hi, SSB_SPROM8_BFLHI, 0xFFFF, 0); |
| SPEX(boardflags2_lo, SSB_SPROM8_BFL2LO, 0xFFFF, 0); |
| SPEX(boardflags2_hi, SSB_SPROM8_BFL2HI, 0xFFFF, 0); |
| SPEX(ant_available_a, SSB_SPROM8_ANTAVAIL, SSB_SPROM8_ANTAVAIL_A, |
| SSB_SPROM8_ANTAVAIL_A_SHIFT); |
| SPEX(ant_available_bg, SSB_SPROM8_ANTAVAIL, SSB_SPROM8_ANTAVAIL_BG, |
| SSB_SPROM8_ANTAVAIL_BG_SHIFT); |
| SPEX(maxpwr_bg, SSB_SPROM8_MAXP_BG, SSB_SPROM8_MAXP_BG_MASK, 0); |
| SPEX(itssi_bg, SSB_SPROM8_MAXP_BG, SSB_SPROM8_ITSSI_BG, |
| SSB_SPROM8_ITSSI_BG_SHIFT); |
| SPEX(maxpwr_a, SSB_SPROM8_MAXP_A, SSB_SPROM8_MAXP_A_MASK, 0); |
| SPEX(itssi_a, SSB_SPROM8_MAXP_A, SSB_SPROM8_ITSSI_A, |
| SSB_SPROM8_ITSSI_A_SHIFT); |
| SPEX(maxpwr_ah, SSB_SPROM8_MAXP_AHL, SSB_SPROM8_MAXP_AH_MASK, 0); |
| SPEX(maxpwr_al, SSB_SPROM8_MAXP_AHL, SSB_SPROM8_MAXP_AL_MASK, |
| SSB_SPROM8_MAXP_AL_SHIFT); |
| SPEX(gpio0, SSB_SPROM8_GPIOA, SSB_SPROM8_GPIOA_P0, 0); |
| SPEX(gpio1, SSB_SPROM8_GPIOA, SSB_SPROM8_GPIOA_P1, |
| SSB_SPROM8_GPIOA_P1_SHIFT); |
| SPEX(gpio2, SSB_SPROM8_GPIOB, SSB_SPROM8_GPIOB_P2, 0); |
| SPEX(gpio3, SSB_SPROM8_GPIOB, SSB_SPROM8_GPIOB_P3, |
| SSB_SPROM8_GPIOB_P3_SHIFT); |
| SPEX(tri2g, SSB_SPROM8_TRI25G, SSB_SPROM8_TRI2G, 0); |
| SPEX(tri5g, SSB_SPROM8_TRI25G, SSB_SPROM8_TRI5G, |
| SSB_SPROM8_TRI5G_SHIFT); |
| SPEX(tri5gl, SSB_SPROM8_TRI5GHL, SSB_SPROM8_TRI5GL, 0); |
| SPEX(tri5gh, SSB_SPROM8_TRI5GHL, SSB_SPROM8_TRI5GH, |
| SSB_SPROM8_TRI5GH_SHIFT); |
| SPEX(rxpo2g, SSB_SPROM8_RXPO, SSB_SPROM8_RXPO2G, 0); |
| SPEX(rxpo5g, SSB_SPROM8_RXPO, SSB_SPROM8_RXPO5G, |
| SSB_SPROM8_RXPO5G_SHIFT); |
| SPEX(rssismf2g, SSB_SPROM8_RSSIPARM2G, SSB_SPROM8_RSSISMF2G, 0); |
| SPEX(rssismc2g, SSB_SPROM8_RSSIPARM2G, SSB_SPROM8_RSSISMC2G, |
| SSB_SPROM8_RSSISMC2G_SHIFT); |
| SPEX(rssisav2g, SSB_SPROM8_RSSIPARM2G, SSB_SPROM8_RSSISAV2G, |
| SSB_SPROM8_RSSISAV2G_SHIFT); |
| SPEX(bxa2g, SSB_SPROM8_RSSIPARM2G, SSB_SPROM8_BXA2G, |
| SSB_SPROM8_BXA2G_SHIFT); |
| SPEX(rssismf5g, SSB_SPROM8_RSSIPARM5G, SSB_SPROM8_RSSISMF5G, 0); |
| SPEX(rssismc5g, SSB_SPROM8_RSSIPARM5G, SSB_SPROM8_RSSISMC5G, |
| SSB_SPROM8_RSSISMC5G_SHIFT); |
| SPEX(rssisav5g, SSB_SPROM8_RSSIPARM5G, SSB_SPROM8_RSSISAV5G, |
| SSB_SPROM8_RSSISAV5G_SHIFT); |
| SPEX(bxa5g, SSB_SPROM8_RSSIPARM5G, SSB_SPROM8_BXA5G, |
| SSB_SPROM8_BXA5G_SHIFT); |
| SPEX(pa0b0, SSB_SPROM8_PA0B0, 0xFFFF, 0); |
| SPEX(pa0b1, SSB_SPROM8_PA0B1, 0xFFFF, 0); |
| SPEX(pa0b2, SSB_SPROM8_PA0B2, 0xFFFF, 0); |
| SPEX(pa1b0, SSB_SPROM8_PA1B0, 0xFFFF, 0); |
| SPEX(pa1b1, SSB_SPROM8_PA1B1, 0xFFFF, 0); |
| SPEX(pa1b2, SSB_SPROM8_PA1B2, 0xFFFF, 0); |
| SPEX(pa1lob0, SSB_SPROM8_PA1LOB0, 0xFFFF, 0); |
| SPEX(pa1lob1, SSB_SPROM8_PA1LOB1, 0xFFFF, 0); |
| SPEX(pa1lob2, SSB_SPROM8_PA1LOB2, 0xFFFF, 0); |
| SPEX(pa1hib0, SSB_SPROM8_PA1HIB0, 0xFFFF, 0); |
| SPEX(pa1hib1, SSB_SPROM8_PA1HIB1, 0xFFFF, 0); |
| SPEX(pa1hib2, SSB_SPROM8_PA1HIB2, 0xFFFF, 0); |
| SPEX(cck2gpo, SSB_SPROM8_CCK2GPO, 0xFFFF, 0); |
| SPEX32(ofdm2gpo, SSB_SPROM8_OFDM2GPO, 0xFFFFFFFF, 0); |
| SPEX32(ofdm5glpo, SSB_SPROM8_OFDM5GLPO, 0xFFFFFFFF, 0); |
| SPEX32(ofdm5gpo, SSB_SPROM8_OFDM5GPO, 0xFFFFFFFF, 0); |
| SPEX32(ofdm5ghpo, SSB_SPROM8_OFDM5GHPO, 0xFFFFFFFF, 0); |
| |
| /* Extract the antenna gain values. */ |
| SPEX(antenna_gain.ghz24.a0, SSB_SPROM8_AGAIN01, |
| SSB_SPROM8_AGAIN0, SSB_SPROM8_AGAIN0_SHIFT); |
| SPEX(antenna_gain.ghz24.a1, SSB_SPROM8_AGAIN01, |
| SSB_SPROM8_AGAIN1, SSB_SPROM8_AGAIN1_SHIFT); |
| SPEX(antenna_gain.ghz24.a2, SSB_SPROM8_AGAIN23, |
| SSB_SPROM8_AGAIN2, SSB_SPROM8_AGAIN2_SHIFT); |
| SPEX(antenna_gain.ghz24.a3, SSB_SPROM8_AGAIN23, |
| SSB_SPROM8_AGAIN3, SSB_SPROM8_AGAIN3_SHIFT); |
| memcpy(&out->antenna_gain.ghz5, &out->antenna_gain.ghz24, |
| sizeof(out->antenna_gain.ghz5)); |
| |
| sprom_extract_r458(out, in); |
| |
| /* TODO - get remaining rev 8 stuff needed */ |
| } |
| |
| static int sprom_extract(struct ssb_bus *bus, struct ssb_sprom *out, |
| const u16 *in, u16 size) |
| { |
| memset(out, 0, sizeof(*out)); |
| |
| out->revision = in[size - 1] & 0x00FF; |
| ssb_dprintk(KERN_DEBUG PFX "SPROM revision %d detected.\n", out->revision); |
| memset(out->et0mac, 0xFF, 6); /* preset et0 and et1 mac */ |
| memset(out->et1mac, 0xFF, 6); |
| |
| if ((bus->chip_id & 0xFF00) == 0x4400) { |
| /* Workaround: The BCM44XX chip has a stupid revision |
| * number stored in the SPROM. |
| * Always extract r1. */ |
| out->revision = 1; |
| ssb_dprintk(KERN_DEBUG PFX "SPROM treated as revision %d\n", out->revision); |
| } |
| |
| switch (out->revision) { |
| case 1: |
| case 2: |
| case 3: |
| sprom_extract_r123(out, in); |
| break; |
| case 4: |
| case 5: |
| sprom_extract_r45(out, in); |
| break; |
| case 8: |
| sprom_extract_r8(out, in); |
| break; |
| default: |
| ssb_printk(KERN_WARNING PFX "Unsupported SPROM" |
| " revision %d detected. Will extract" |
| " v1\n", out->revision); |
| out->revision = 1; |
| sprom_extract_r123(out, in); |
| } |
| |
| if (out->boardflags_lo == 0xFFFF) |
| out->boardflags_lo = 0; /* per specs */ |
| if (out->boardflags_hi == 0xFFFF) |
| out->boardflags_hi = 0; /* per specs */ |
| |
| return 0; |
| } |
| |
| static int ssb_pci_sprom_get(struct ssb_bus *bus, |
| struct ssb_sprom *sprom) |
| { |
| int err; |
| u16 *buf; |
| |
| if (!ssb_is_sprom_available(bus)) { |
| ssb_printk(KERN_ERR PFX "No SPROM available!\n"); |
| return -ENODEV; |
| } |
| if (bus->chipco.dev) { /* can be unavailable! */ |
| /* |
| * get SPROM offset: SSB_SPROM_BASE1 except for |
| * chipcommon rev >= 31 or chip ID is 0x4312 and |
| * chipcommon status & 3 == 2 |
| */ |
| if (bus->chipco.dev->id.revision >= 31) |
| bus->sprom_offset = SSB_SPROM_BASE31; |
| else if (bus->chip_id == 0x4312 && |
| (bus->chipco.status & 0x03) == 2) |
| bus->sprom_offset = SSB_SPROM_BASE31; |
| else |
| bus->sprom_offset = SSB_SPROM_BASE1; |
| } else { |
| bus->sprom_offset = SSB_SPROM_BASE1; |
| } |
| ssb_dprintk(KERN_INFO PFX "SPROM offset is 0x%x\n", bus->sprom_offset); |
| |
| buf = kcalloc(SSB_SPROMSIZE_WORDS_R123, sizeof(u16), GFP_KERNEL); |
| if (!buf) |
| return -ENOMEM; |
| bus->sprom_size = SSB_SPROMSIZE_WORDS_R123; |
| sprom_do_read(bus, buf); |
| err = sprom_check_crc(buf, bus->sprom_size); |
| if (err) { |
| /* try for a 440 byte SPROM - revision 4 and higher */ |
| kfree(buf); |
| buf = kcalloc(SSB_SPROMSIZE_WORDS_R4, sizeof(u16), |
| GFP_KERNEL); |
| if (!buf) |
| return -ENOMEM; |
| bus->sprom_size = SSB_SPROMSIZE_WORDS_R4; |
| sprom_do_read(bus, buf); |
| err = sprom_check_crc(buf, bus->sprom_size); |
| if (err) { |
| /* All CRC attempts failed. |
| * Maybe there is no SPROM on the device? |
| * Now we ask the arch code if there is some sprom |
| * available for this device in some other storage */ |
| err = ssb_fill_sprom_with_fallback(bus, sprom); |
| if (err) { |
| ssb_printk(KERN_WARNING PFX "WARNING: Using" |
| " fallback SPROM failed (err %d)\n", |
| err); |
| } else { |
| ssb_dprintk(KERN_DEBUG PFX "Using SPROM" |
| " revision %d provided by" |
| " platform.\n", sprom->revision); |
| err = 0; |
| goto out_free; |
| } |
| ssb_printk(KERN_WARNING PFX "WARNING: Invalid" |
| " SPROM CRC (corrupt SPROM)\n"); |
| } |
| } |
| err = sprom_extract(bus, sprom, buf, bus->sprom_size); |
| |
| out_free: |
| kfree(buf); |
| return err; |
| } |
| |
| static void ssb_pci_get_boardinfo(struct ssb_bus *bus, |
| struct ssb_boardinfo *bi) |
| { |
| pci_read_config_word(bus->host_pci, PCI_SUBSYSTEM_VENDOR_ID, |
| &bi->vendor); |
| pci_read_config_word(bus->host_pci, PCI_SUBSYSTEM_ID, |
| &bi->type); |
| pci_read_config_word(bus->host_pci, PCI_REVISION_ID, |
| &bi->rev); |
| } |
| |
| int ssb_pci_get_invariants(struct ssb_bus *bus, |
| struct ssb_init_invariants *iv) |
| { |
| int err; |
| |
| err = ssb_pci_sprom_get(bus, &iv->sprom); |
| if (err) |
| goto out; |
| ssb_pci_get_boardinfo(bus, &iv->boardinfo); |
| |
| out: |
| return err; |
| } |
| |
| #ifdef CONFIG_SSB_DEBUG |
| static int ssb_pci_assert_buspower(struct ssb_bus *bus) |
| { |
| if (likely(bus->powered_up)) |
| return 0; |
| |
| printk(KERN_ERR PFX "FATAL ERROR: Bus powered down " |
| "while accessing PCI MMIO space\n"); |
| if (bus->power_warn_count <= 10) { |
| bus->power_warn_count++; |
| dump_stack(); |
| } |
| |
| return -ENODEV; |
| } |
| #else /* DEBUG */ |
| static inline int ssb_pci_assert_buspower(struct ssb_bus *bus) |
| { |
| return 0; |
| } |
| #endif /* DEBUG */ |
| |
| static u8 ssb_pci_read8(struct ssb_device *dev, u16 offset) |
| { |
| struct ssb_bus *bus = dev->bus; |
| |
| if (unlikely(ssb_pci_assert_buspower(bus))) |
| return 0xFF; |
| if (unlikely(bus->mapped_device != dev)) { |
| if (unlikely(ssb_pci_switch_core(bus, dev))) |
| return 0xFF; |
| } |
| return ioread8(bus->mmio + offset); |
| } |
| |
| static u16 ssb_pci_read16(struct ssb_device *dev, u16 offset) |
| { |
| struct ssb_bus *bus = dev->bus; |
| |
| if (unlikely(ssb_pci_assert_buspower(bus))) |
| return 0xFFFF; |
| if (unlikely(bus->mapped_device != dev)) { |
| if (unlikely(ssb_pci_switch_core(bus, dev))) |
| return 0xFFFF; |
| } |
| return ioread16(bus->mmio + offset); |
| } |
| |
| static u32 ssb_pci_read32(struct ssb_device *dev, u16 offset) |
| { |
| struct ssb_bus *bus = dev->bus; |
| |
| if (unlikely(ssb_pci_assert_buspower(bus))) |
| return 0xFFFFFFFF; |
| if (unlikely(bus->mapped_device != dev)) { |
| if (unlikely(ssb_pci_switch_core(bus, dev))) |
| return 0xFFFFFFFF; |
| } |
| return ioread32(bus->mmio + offset); |
| } |
| |
| #ifdef CONFIG_SSB_BLOCKIO |
| static void ssb_pci_block_read(struct ssb_device *dev, void *buffer, |
| size_t count, u16 offset, u8 reg_width) |
| { |
| struct ssb_bus *bus = dev->bus; |
| void __iomem *addr = bus->mmio + offset; |
| |
| if (unlikely(ssb_pci_assert_buspower(bus))) |
| goto error; |
| if (unlikely(bus->mapped_device != dev)) { |
| if (unlikely(ssb_pci_switch_core(bus, dev))) |
| goto error; |
| } |
| switch (reg_width) { |
| case sizeof(u8): |
| ioread8_rep(addr, buffer, count); |
| break; |
| case sizeof(u16): |
| SSB_WARN_ON(count & 1); |
| ioread16_rep(addr, buffer, count >> 1); |
| break; |
| case sizeof(u32): |
| SSB_WARN_ON(count & 3); |
| ioread32_rep(addr, buffer, count >> 2); |
| break; |
| default: |
| SSB_WARN_ON(1); |
| } |
| |
| return; |
| error: |
| memset(buffer, 0xFF, count); |
| } |
| #endif /* CONFIG_SSB_BLOCKIO */ |
| |
| static void ssb_pci_write8(struct ssb_device *dev, u16 offset, u8 value) |
| { |
| struct ssb_bus *bus = dev->bus; |
| |
| if (unlikely(ssb_pci_assert_buspower(bus))) |
| return; |
| if (unlikely(bus->mapped_device != dev)) { |
| if (unlikely(ssb_pci_switch_core(bus, dev))) |
| return; |
| } |
| iowrite8(value, bus->mmio + offset); |
| } |
| |
| static void ssb_pci_write16(struct ssb_device *dev, u16 offset, u16 value) |
| { |
| struct ssb_bus *bus = dev->bus; |
| |
| if (unlikely(ssb_pci_assert_buspower(bus))) |
| return; |
| if (unlikely(bus->mapped_device != dev)) { |
| if (unlikely(ssb_pci_switch_core(bus, dev))) |
| return; |
| } |
| iowrite16(value, bus->mmio + offset); |
| } |
| |
| static void ssb_pci_write32(struct ssb_device *dev, u16 offset, u32 value) |
| { |
| struct ssb_bus *bus = dev->bus; |
| |
| if (unlikely(ssb_pci_assert_buspower(bus))) |
| return; |
| if (unlikely(bus->mapped_device != dev)) { |
| if (unlikely(ssb_pci_switch_core(bus, dev))) |
| return; |
| } |
| iowrite32(value, bus->mmio + offset); |
| } |
| |
| #ifdef CONFIG_SSB_BLOCKIO |
| static void ssb_pci_block_write(struct ssb_device *dev, const void *buffer, |
| size_t count, u16 offset, u8 reg_width) |
| { |
| struct ssb_bus *bus = dev->bus; |
| void __iomem *addr = bus->mmio + offset; |
| |
| if (unlikely(ssb_pci_assert_buspower(bus))) |
| return; |
| if (unlikely(bus->mapped_device != dev)) { |
| if (unlikely(ssb_pci_switch_core(bus, dev))) |
| return; |
| } |
| switch (reg_width) { |
| case sizeof(u8): |
| iowrite8_rep(addr, buffer, count); |
| break; |
| case sizeof(u16): |
| SSB_WARN_ON(count & 1); |
| iowrite16_rep(addr, buffer, count >> 1); |
| break; |
| case sizeof(u32): |
| SSB_WARN_ON(count & 3); |
| iowrite32_rep(addr, buffer, count >> 2); |
| break; |
| default: |
| SSB_WARN_ON(1); |
| } |
| } |
| #endif /* CONFIG_SSB_BLOCKIO */ |
| |
| /* Not "static", as it's used in main.c */ |
| const struct ssb_bus_ops ssb_pci_ops = { |
| .read8 = ssb_pci_read8, |
| .read16 = ssb_pci_read16, |
| .read32 = ssb_pci_read32, |
| .write8 = ssb_pci_write8, |
| .write16 = ssb_pci_write16, |
| .write32 = ssb_pci_write32, |
| #ifdef CONFIG_SSB_BLOCKIO |
| .block_read = ssb_pci_block_read, |
| .block_write = ssb_pci_block_write, |
| #endif |
| }; |
| |
| static ssize_t ssb_pci_attr_sprom_show(struct device *pcidev, |
| struct device_attribute *attr, |
| char *buf) |
| { |
| struct pci_dev *pdev = container_of(pcidev, struct pci_dev, dev); |
| struct ssb_bus *bus; |
| |
| bus = ssb_pci_dev_to_bus(pdev); |
| if (!bus) |
| return -ENODEV; |
| |
| return ssb_attr_sprom_show(bus, buf, sprom_do_read); |
| } |
| |
| static ssize_t ssb_pci_attr_sprom_store(struct device *pcidev, |
| struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct pci_dev *pdev = container_of(pcidev, struct pci_dev, dev); |
| struct ssb_bus *bus; |
| |
| bus = ssb_pci_dev_to_bus(pdev); |
| if (!bus) |
| return -ENODEV; |
| |
| return ssb_attr_sprom_store(bus, buf, count, |
| sprom_check_crc, sprom_do_write); |
| } |
| |
| static DEVICE_ATTR(ssb_sprom, 0600, |
| ssb_pci_attr_sprom_show, |
| ssb_pci_attr_sprom_store); |
| |
| void ssb_pci_exit(struct ssb_bus *bus) |
| { |
| struct pci_dev *pdev; |
| |
| if (bus->bustype != SSB_BUSTYPE_PCI) |
| return; |
| |
| pdev = bus->host_pci; |
| device_remove_file(&pdev->dev, &dev_attr_ssb_sprom); |
| } |
| |
| int ssb_pci_init(struct ssb_bus *bus) |
| { |
| struct pci_dev *pdev; |
| int err; |
| |
| if (bus->bustype != SSB_BUSTYPE_PCI) |
| return 0; |
| |
| pdev = bus->host_pci; |
| mutex_init(&bus->sprom_mutex); |
| err = device_create_file(&pdev->dev, &dev_attr_ssb_sprom); |
| if (err) |
| goto out; |
| |
| out: |
| return err; |
| } |