flashrom July 2012

flashrom@flashrom.org

38 participants
156 discussions

[PATCH] Support chips MBM29F040 and W29EE512
by Andreas Seltenreich 08 Aug '12

08 Aug '12

Hi, I had to modify my copy a bit to use the PLCC chips I had salvaged somewhere as boot ROMs in Intel NICs. Patch attached. I'm not sure if the 512kB one qualifies as tested because the programmer only supports 128kB, and I had to --force it. regards, andreas

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[PATCH] Automatically release I/O permissions on shutdown
by Carl-Daniel Hailfinger 08 Aug '12

08 Aug '12

get_io_perms() is renamed to rget_io_perms() and automatically registers a function to release I/O permissions on shutdown. Actually release I/O permissions on Solaris and iopl()-supporting operating systems like Linux. This patch fixes quite a few programmers which forgot to release I/O permissions on shutdown, and it simplifies the shutdown and error handling code for all others. Note: The next steps will be to do the same with PCI init and /dev/mem accesses. That should make probably 3/4 of all explicit shutdown functions empty and obsolete. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006(a)gmx.net> Index: flashrom-auto_release_io_perms/hwaccess.c =================================================================== --- flashrom-auto_release_io_perms/hwaccess.c (Revision 1547) +++ flashrom-auto_release_io_perms/hwaccess.c (Arbeitskopie) @@ -44,9 +44,25 @@ int io_fd; #endif -void get_io_perms(void) +int release_io_perms(void *p) { #if defined(__DJGPP__) || defined(__LIBPAYLOAD__) +#else +#if defined (__sun) && (defined(__i386) || defined(__amd64)) + sysi86(SI86V86, V86SC_IOPL, 0); +#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined (__DragonFly__) + close(io_fd); +#else + iopl(0); +#endif +#endif + return 0; +} + +/* Get I/O permissions with automatic permission release on shutdown. */ +void rget_io_perms(void) +{ +#if defined(__DJGPP__) || defined(__LIBPAYLOAD__) /* We have full permissions by default. */ return; #else @@ -65,17 +81,12 @@ msg_perr("single user mode.\n"); #endif exit(1); + } else { + register_shutdown(release_io_perms, NULL); } #endif } -void release_io_perms(void) -{ -#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__) - close(io_fd); -#endif -} - #elif defined(__powerpc__) || defined(__powerpc64__) || defined(__ppc__) || defined(__ppc64__) static inline void sync_primitive(void) @@ -88,15 +99,10 @@ } /* PCI port I/O is not yet implemented on PowerPC. */ -void get_io_perms(void) +void rget_io_perms(void) { } -/* PCI port I/O is not yet implemented on PowerPC. */ -void release_io_perms(void) -{ -} - #elif defined (__mips) || defined (__mips__) || defined (_mips) || defined (mips) /* sync primitive is not needed because /dev/mem on MIPS uses uncached accesses @@ -107,29 +113,20 @@ } /* PCI port I/O is not yet implemented on MIPS. */ -void get_io_perms(void) +void rget_io_perms(void) { } -/* PCI port I/O is not yet implemented on MIPS. */ -void release_io_perms(void) -{ -} - #elif defined (__arm__) static inline void sync_primitive(void) { } -void get_io_perms(void) +void rget_io_perms(void) { } -void release_io_perms(void) -{ -} - #else #error Unknown architecture Index: flashrom-auto_release_io_perms/ogp_spi.c =================================================================== --- flashrom-auto_release_io_perms/ogp_spi.c (Revision 1547) +++ flashrom-auto_release_io_perms/ogp_spi.c (Arbeitskopie) @@ -98,7 +98,6 @@ { physunmap(ogp_spibar, 4096); pci_cleanup(pacc); - release_io_perms(); return 0; } @@ -128,7 +127,7 @@ return 1; } - get_io_perms(); + rget_io_perms(); io_base_addr = pcidev_init(PCI_BASE_ADDRESS_0, ogp_spi); Index: flashrom-auto_release_io_perms/drkaiser.c =================================================================== --- flashrom-auto_release_io_perms/drkaiser.c (Revision 1547) +++ flashrom-auto_release_io_perms/drkaiser.c (Arbeitskopie) @@ -59,7 +59,6 @@ physunmap(drkaiser_bar, DRKAISER_MEMMAP_SIZE); /* Flash write is disabled automatically by PCI restore. */ pci_cleanup(pacc); - release_io_perms(); return 0; }; @@ -67,7 +66,7 @@ { uint32_t addr; - get_io_perms(); + rget_io_perms(); addr = pcidev_init(PCI_BASE_ADDRESS_2, drkaiser_pcidev); Index: flashrom-auto_release_io_perms/gfxnvidia.c =================================================================== --- flashrom-auto_release_io_perms/gfxnvidia.c (Revision 1547) +++ flashrom-auto_release_io_perms/gfxnvidia.c (Arbeitskopie) @@ -83,7 +83,6 @@ * by PCI restore. */ pci_cleanup(pacc); - release_io_perms(); return 0; } @@ -91,7 +90,7 @@ { uint32_t reg32; - get_io_perms(); + rget_io_perms(); io_base_addr = pcidev_init(PCI_BASE_ADDRESS_0, gfx_nvidia); Index: flashrom-auto_release_io_perms/nicrealtek.c =================================================================== --- flashrom-auto_release_io_perms/nicrealtek.c (Revision 1547) +++ flashrom-auto_release_io_perms/nicrealtek.c (Arbeitskopie) @@ -55,13 +55,12 @@ { /* FIXME: We forgot to disable software access again. */ pci_cleanup(pacc); - release_io_perms(); return 0; } int nicrealtek_init(void) { - get_io_perms(); + rget_io_perms(); io_base_addr = pcidev_init(PCI_BASE_ADDRESS_0, nics_realtek); Index: flashrom-auto_release_io_perms/satamv.c =================================================================== --- flashrom-auto_release_io_perms/satamv.c (Revision 1547) +++ flashrom-auto_release_io_perms/satamv.c (Arbeitskopie) @@ -60,7 +60,6 @@ { physunmap(mv_bar, 0x20000); pci_cleanup(pacc); - release_io_perms(); return 0; } @@ -85,7 +84,7 @@ uintptr_t addr; uint32_t tmp; - get_io_perms(); + rget_io_perms(); /* BAR0 has all internal registers memory mapped. */ /* No need to check for errors, pcidev_init() will not return in case @@ -161,7 +160,6 @@ error_out: pci_cleanup(pacc); - release_io_perms(); return 1; } Index: flashrom-auto_release_io_perms/internal.c =================================================================== --- flashrom-auto_release_io_perms/internal.c (Revision 1547) +++ flashrom-auto_release_io_perms/internal.c (Arbeitskopie) @@ -158,7 +158,6 @@ static int internal_shutdown(void *data) { - release_io_perms(); return 0; } @@ -225,7 +224,7 @@ } free(arg); - get_io_perms(); + rget_io_perms(); if (register_shutdown(internal_shutdown, NULL)) return 1; Index: flashrom-auto_release_io_perms/nicintel_spi.c =================================================================== --- flashrom-auto_release_io_perms/nicintel_spi.c (Revision 1547) +++ flashrom-auto_release_io_perms/nicintel_spi.c (Arbeitskopie) @@ -158,7 +158,6 @@ physunmap(nicintel_spibar, 4096); pci_cleanup(pacc); - release_io_perms(); return 0; } @@ -167,7 +166,7 @@ { uint32_t tmp; - get_io_perms(); + rget_io_perms(); io_base_addr = pcidev_init(PCI_BASE_ADDRESS_0, nics_intel_spi); Index: flashrom-auto_release_io_perms/nicnatsemi.c =================================================================== --- flashrom-auto_release_io_perms/nicnatsemi.c (Revision 1547) +++ flashrom-auto_release_io_perms/nicnatsemi.c (Arbeitskopie) @@ -53,13 +53,12 @@ static int nicnatsemi_shutdown(void *data) { pci_cleanup(pacc); - release_io_perms(); return 0; } int nicnatsemi_init(void) { - get_io_perms(); + rget_io_perms(); io_base_addr = pcidev_init(PCI_BASE_ADDRESS_0, nics_natsemi); Index: flashrom-auto_release_io_perms/rayer_spi.c =================================================================== --- flashrom-auto_release_io_perms/rayer_spi.c (Revision 1547) +++ flashrom-auto_release_io_perms/rayer_spi.c (Arbeitskopie) @@ -167,7 +167,7 @@ rayer_miso_bit = 4; } - get_io_perms(); + rget_io_perms(); /* Get the initial value before writing to any line. */ lpt_outbyte = INB(lpt_iobase); Index: flashrom-auto_release_io_perms/atahpt.c =================================================================== --- flashrom-auto_release_io_perms/atahpt.c (Revision 1547) +++ flashrom-auto_release_io_perms/atahpt.c (Arbeitskopie) @@ -59,7 +59,6 @@ { /* Flash access is disabled automatically by PCI restore. */ pci_cleanup(pacc); - release_io_perms(); return 0; } @@ -67,7 +66,7 @@ { uint32_t reg32; - get_io_perms(); + rget_io_perms(); io_base_addr = pcidev_init(PCI_BASE_ADDRESS_4, ata_hpt); Index: flashrom-auto_release_io_perms/nic3com.c =================================================================== --- flashrom-auto_release_io_perms/nic3com.c (Revision 1547) +++ flashrom-auto_release_io_perms/nic3com.c (Arbeitskopie) @@ -81,13 +81,12 @@ } pci_cleanup(pacc); - release_io_perms(); return 0; } int nic3com_init(void) { - get_io_perms(); + rget_io_perms(); io_base_addr = pcidev_init(PCI_BASE_ADDRESS_0, nics_3com); Index: flashrom-auto_release_io_perms/satasii.c =================================================================== --- flashrom-auto_release_io_perms/satasii.c (Revision 1547) +++ flashrom-auto_release_io_perms/satasii.c (Arbeitskopie) @@ -61,7 +61,6 @@ { physunmap(sii_bar, SATASII_MEMMAP_SIZE); pci_cleanup(pacc); - release_io_perms(); return 0; } @@ -70,7 +69,7 @@ uint32_t addr; uint16_t reg_offset; - get_io_perms(); + rget_io_perms(); pcidev_init(PCI_BASE_ADDRESS_0, satas_sii); Index: flashrom-auto_release_io_perms/nicintel.c =================================================================== --- flashrom-auto_release_io_perms/nicintel.c (Revision 1547) +++ flashrom-auto_release_io_perms/nicintel.c (Arbeitskopie) @@ -63,7 +63,6 @@ physunmap(nicintel_control_bar, NICINTEL_CONTROL_MEMMAP_SIZE); physunmap(nicintel_bar, NICINTEL_MEMMAP_SIZE); pci_cleanup(pacc); - release_io_perms(); return 0; } @@ -72,9 +71,9 @@ uintptr_t addr; /* Needed only for PCI accesses on some platforms. - * FIXME: Refactor that into get_mem_perms/get_io_perms/get_pci_perms? + * FIXME: Refactor that into get_mem_perms/rget_io_perms/get_pci_perms? */ - get_io_perms(); + rget_io_perms(); /* No need to check for errors, pcidev_init() will not return in case * of errors. @@ -117,7 +116,6 @@ physunmap(nicintel_bar, NICINTEL_MEMMAP_SIZE); error_out: pci_cleanup(pacc); - release_io_perms(); return 1; } Index: flashrom-auto_release_io_perms/programmer.h =================================================================== --- flashrom-auto_release_io_perms/programmer.h (Revision 1547) +++ flashrom-auto_release_io_perms/programmer.h (Arbeitskopie) @@ -300,8 +300,7 @@ struct pci_dev *pci_card_find(uint16_t vendor, uint16_t device, uint16_t card_vendor, uint16_t card_device); #endif -void get_io_perms(void); -void release_io_perms(void); +void rget_io_perms(void); #if CONFIG_INTERNAL == 1 extern int is_laptop; extern int laptop_ok; -- http://www.hailfinger.org/

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Re: [flashrom] [PATCH] ichspi: ignore bogus FREGs.
by Justin Bogner 08 Aug '12

08 Aug '12

Stefan Tauner <stefan.tauner(a)student.tuwien.ac.at> writes: > Some vendors forget to disable regions properly and set their FRAP bits > and FREG to 0. While not documented publicly this is being ignored by the > chipset(s)[1] and hence flashrom should do so too. Without this patch > flashrom prints a warning and disables writes. > The check for i (region index) excludes the descriptor region which should > not be becessary because specs suggest that the descriptor region should not > be locked, but if vendors would follow the specs this patch would not have > been necessary in the first place. > > [1]: http://www.flashrom.org/pipermail/flashrom/2012-May/009303.html > > Signed-off-by: Stefan Tauner <stefan.tauner(a)student.tuwien.ac.at> > --- > Justin, you could help testing this patch by applying it to the latest > development source from http://flashrom.org/Downloads and sending us > the flashrom output as before. I'll try this out in the next week or so. Thanks for looking into this.

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Re: [flashrom] Intel C602 support
by Stefan Tauner 02 Aug '12

02 Aug '12

On Thu, 28 Jun 2012 07:03:34 -0700 Greg Schardt <gschardt(a)ddn.com> wrote: > I apologize for the delay. likewise ;) > Here is the output: > > 00:1f.0 ISA bridge [0601]: Intel Corporation Patsburg LPC Controller [8086:1d41] (rev 06) > > Let me know if you need more information or would like me to test it. that one actually is already supported since september 2011, so the latest stable version should detect it and work correctly (as long as there are no locked regions). -- Kind regards/Mit freundlichen Grüßen, Stefan Tauner

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[PATCH] Fix VIA VX*** support.
by Stefan Tauner 31 Jul '12

31 Jul '12

Helge Wagner's patch that added VIA VX900 chipset support made me look closer at the datasheets which led to some concise documentation about newer VIA chipsets: http://flashrom.org/VIA Based on that this patch adds full support for VX800/VX820, VX855/VX875 and VX900, including SPI and LPC. VT8237S was not changed (SPI support only) because there is no public datasheet and it is not clear how to distinguish between LPC and SPI strapping and investigations in (NDAed) documents have not brought up anything conclusively. enable_flash_vt823x could probably be enhanced too due to various yet ignored LPC options of the chipset. Signed-off-by: Helge Wagner <Helge.Wagner(a)ge.com> Signed-off-by: Stefan Tauner <stefan.tauner(a)student.tuwien.ac.at> --- New version with tiny changes for 0.9.6... test status is NT and arguable... but since there are so few VIA users out there anyway i think we wont get too many mails anyway. chipset_enable.c | 80 +++++++++++++++++++++++++++++++++++++++++++++++------- ichspi.c | 11 +++----- programmer.h | 2 +- 3 files changed, 75 insertions(+), 18 deletions(-) diff --git a/chipset_enable.c b/chipset_enable.c index 936d7b8..0974427 100644 --- a/chipset_enable.c +++ b/chipset_enable.c @@ -6,6 +6,7 @@ * Copyright (C) 2006 Uwe Hermann <uwe(a)hermann-uwe.de> * Copyright (C) 2007,2008,2009 Carl-Daniel Hailfinger * Copyright (C) 2009 Kontron Modular Computers GmbH + * Copyright (C) 2011, 2012 Stefan Tauner * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -508,12 +509,6 @@ static int enable_flash_tunnelcreek(struct pci_dev *dev, const char *name) return ret; } -static int enable_flash_vt8237s_spi(struct pci_dev *dev, const char *name) -{ - /* Do we really need no write enable? */ - return via_init_spi(dev); -} - static int enable_flash_ich_dc_spi(struct pci_dev *dev, const char *name, enum ich_chipset ich_generation) { @@ -681,16 +676,80 @@ static int enable_flash_vt823x(struct pci_dev *dev, const char *name) return -1; } - if (dev->device_id == 0x3227) { /* VT8237R */ + if (dev->device_id == 0x3227) { /* VT8237 */ /* All memory cycles, not just ROM ones, go to LPC. */ val = pci_read_byte(dev, 0x59); val &= ~0x80; rpci_write_byte(dev, 0x59, val); } + internal_buses_supported = BUS_LPC | BUS_FWH; return 0; } +static int enable_flash_vt_vx(struct pci_dev *dev, const char *name) +{ + struct pci_dev *south_north = pci_dev_find(0x1106, 0xa353); + if (south_north == NULL) { + msg_perr("Could not find South-North Module Interface Control device!\n"); + return ERROR_FATAL; + } + + msg_pdbg("Strapped to "); + if ((pci_read_byte(south_north, 0x56) & 0x01) == 0) { + msg_pdbg("LPC.\n"); + return enable_flash_vt823x(dev, name); + } + msg_pdbg("SPI.\n"); + + uint32_t mmio_base; + void *mmio_base_physmapped; + uint32_t spi_cntl; + #define SPI_CNTL_LEN 0x08 + uint32_t spi0_mm_base = 0; + switch(dev->device_id) { + case 0x8353: /* VX800/VX820 */ + spi0_mm_base = pci_read_long(dev, 0xbc) << 8; + break; + case 0x8409: /* VX855/VX875 */ + case 0x8410: /* VX900 */ + mmio_base = pci_read_long(dev, 0xbc) << 8; + mmio_base_physmapped = physmap("VIA VX MMIO register", mmio_base, SPI_CNTL_LEN); + if (mmio_base_physmapped == ERROR_PTR) { + physunmap(mmio_base_physmapped, SPI_CNTL_LEN); + return ERROR_FATAL; + } + + /* Offset 0 - Bit 0 holds SPI Bus0 Enable Bit. */ + spi_cntl = mmio_readl(mmio_base_physmapped) + 0x00; + if ((spi_cntl & 0x01) == 0) { + msg_pdbg ("SPI Bus0 disabled!\n"); + physunmap(mmio_base_physmapped, SPI_CNTL_LEN); + return ERROR_FATAL; + } + /* Offset 1-3 has SPI Bus Memory Map Base Address: */ + spi0_mm_base = spi_cntl & 0xFFFFFF00; + + /* Offset 4 - Bit 0 holds SPI Bus1 Enable Bit. */ + spi_cntl = mmio_readl(mmio_base_physmapped) + 0x04; + if ((spi_cntl & 0x01) == 1) + msg_pdbg2("SPI Bus1 is enabled too.\n"); + + physunmap(mmio_base_physmapped, SPI_CNTL_LEN); + break; + default: + msg_perr("%s: Unsupported chipset %x:%x!\n", __func__, dev->vendor_id, dev->device_id); + return ERROR_FATAL; + } + + return via_init_spi(dev, spi0_mm_base); +} + +static int enable_flash_vt8237s_spi(struct pci_dev *dev, const char *name) +{ + return via_init_spi(dev, pci_read_long(dev, 0xbc) << 8); +} + static int enable_flash_cs5530(struct pci_dev *dev, const char *name) { uint8_t reg8; @@ -1263,7 +1322,7 @@ const struct penable chipset_enables[] = { {0x1106, 0x0586, OK, "VIA", "VT82C586A/B", enable_flash_amd8111}, {0x1106, 0x0596, OK, "VIA", "VT82C596", enable_flash_amd8111}, {0x1106, 0x0686, OK, "VIA", "VT82C686A/B", enable_flash_amd8111}, - {0x1106, 0x3074, OK, "VIA", "VT8233", enable_flash_vt823x}, + {0x1106, 0x3074, OK, "VIA", "VT8233/VT8237R", enable_flash_vt823x}, {0x1106, 0x3147, OK, "VIA", "VT8233A", enable_flash_vt823x}, {0x1106, 0x3177, OK, "VIA", "VT8235", enable_flash_vt823x}, {0x1106, 0x3227, OK, "VIA", "VT8237", enable_flash_vt823x}, @@ -1271,8 +1330,9 @@ const struct penable chipset_enables[] = { {0x1106, 0x3372, OK, "VIA", "VT8237S", enable_flash_vt8237s_spi}, {0x1106, 0x8231, NT, "VIA", "VT8231", enable_flash_vt823x}, {0x1106, 0x8324, OK, "VIA", "CX700", enable_flash_vt823x}, - {0x1106, 0x8353, OK, "VIA", "VX800/VX820", enable_flash_vt8237s_spi}, - {0x1106, 0x8409, OK, "VIA", "VX855/VX875", enable_flash_vt823x}, + {0x1106, 0x8353, NT, "VIA", "VX800/VX820", enable_flash_vt_vx}, + {0x1106, 0x8409, NT, "VIA", "VX855/VX875", enable_flash_vt_vx}, + {0x1106, 0x8410, NT, "VIA", "VX900", enable_flash_vt_vx}, {0x1166, 0x0200, OK, "Broadcom", "OSB4", enable_flash_osb4}, {0x1166, 0x0205, OK, "Broadcom", "HT-1000", enable_flash_ht1000}, {0x17f3, 0x6030, OK, "RDC", "R8610/R3210", enable_flash_rdc_r8610}, diff --git a/ichspi.c b/ichspi.c index 0223ae3..44d659b 100644 --- a/ichspi.c +++ b/ichspi.c @@ -1844,19 +1844,16 @@ static const struct spi_programmer spi_programmer_via = { .write_aai = default_spi_write_aai, }; -int via_init_spi(struct pci_dev *dev) +int via_init_spi(struct pci_dev *dev, uint32_t mmio_base) { - uint32_t mmio_base; int i; - mmio_base = (pci_read_long(dev, 0xbc)) << 8; - msg_pdbg("MMIO base at = 0x%x\n", mmio_base); - ich_spibar = physmap("VT8237S MMIO registers", mmio_base, 0x70); + ich_spibar = physmap("VIA SPI MMIO registers", mmio_base, 0x70); + /* Do we really need no write enable? Like the LPC one at D17F0 0x40 */ - /* Not sure if it speaks all these bus protocols. */ - internal_buses_supported = BUS_LPC | BUS_FWH; ich_generation = CHIPSET_ICH7; register_spi_programmer(&spi_programmer_via); + internal_buses_supported = BUS_SPI; msg_pdbg("0x00: 0x%04x (SPIS)\n", mmio_readw(ich_spibar + 0)); msg_pdbg("0x02: 0x%04x (SPIC)\n", mmio_readw(ich_spibar + 2)); diff --git a/programmer.h b/programmer.h index 5109ed9..ec29ed8 100644 --- a/programmer.h +++ b/programmer.h @@ -561,7 +561,7 @@ enum ich_chipset { extern uint32_t ichspi_bbar; int ich_init_spi(struct pci_dev *dev, uint32_t base, void *rcrb, enum ich_chipset ich_generation); -int via_init_spi(struct pci_dev *dev); +int via_init_spi(struct pci_dev *dev, uint32_t mmio_base); /* it85spi.c */ int it85xx_spi_init(struct superio s); -- Kind regards, Stefan Tauner

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Tagging flashrom 0.9.6
by Carl-Daniel Hailfinger 31 Jul '12

31 Jul '12

I plan to tag and release flashrom 0.9.6 Real Soon Now (tm). If you need anything merged, tell me NOW. flashrom svn HEAD doesn't have any known regressions compared to 0.9.5, so it seems stable enough to ship. Regards, Carl-Daniel -- http://www.hailfinger.org/

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[PATCH] remove exit calls from sp_docommand
by Niklas Söderlund 30 Jul '12

30 Jul '12

Adapted two callers to handle return codes instead of relying on the exit call. Rest of upstream callers are prepared to handle return values. Signed-off-by: Niklas Söderlund <niso(a)kth.se> --- serprog.c | 34 ++++++++++++++++++++++------------ 1 file changed, 22 insertions(+), 12 deletions(-) diff --git a/serprog.c b/serprog.c index f03d332..aac10af 100644 --- a/serprog.c +++ b/serprog.c @@ -246,17 +246,23 @@ static int sp_docommand(uint8_t command, uint32_t parmlen, unsigned char c; if (sp_automatic_cmdcheck(command)) return 1; - if (write(sp_fd, &command, 1) != 1) - sp_die("Error: cannot write op code"); - if (write(sp_fd, params, parmlen) != (parmlen)) - sp_die("Error: cannot write parameters"); - if (read(sp_fd, &c, 1) != 1) - sp_die("Error: cannot read from device"); + if (write(sp_fd, &command, 1) != 1) { + msg_perr("Error: cannot write op code: %s\n", strerror(errno)); + return 1; + } + if (write(sp_fd, params, parmlen) != (parmlen)) { + msg_perr("Error: cannot write parameters: %s\n", strerror(errno)); + return 1; + } + if (read(sp_fd, &c, 1) != 1) { + msg_perr("Error: cannot read from device: %s\n", strerror(errno)); + return 1; + } if (c == S_NAK) return 1; if (c != S_ACK) { - msg_perr("Error: invalid response 0x%02X from device\n",c); - exit(1); + msg_perr("Error: invalid response 0x%02X from device\n", c); + return 1; } if (retlen) { int rd_bytes = 0; @@ -264,8 +270,10 @@ static int sp_docommand(uint8_t command, uint32_t parmlen, int r; r = read(sp_fd, retparms + rd_bytes, retlen - rd_bytes); - if (r <= 0) - sp_die("Error: cannot read return parameters"); + if (r <= 0) { + msg_perr("Error: cannot read return parameters: %s\n", strerror(errno)); + return 1; + } rd_bytes += r; } while (rd_bytes != retlen); } @@ -491,7 +499,8 @@ int serprog_init(void) the programmer to tell us its limits, but if it doesn't, we will assume stuff, so it's in the programmers best interest to tell us. */ - sp_docommand(S_CMD_S_BUSTYPE, 1, &bt, 0, NULL); + if (sp_docommand(S_CMD_S_BUSTYPE, 1, &bt, 0, NULL)) + return 1; if (!sp_docommand(S_CMD_Q_WRNMAXLEN, 0, NULL, 3, rbuf)) { uint32_t v; v = ((unsigned int)(rbuf[0]) << 0); @@ -513,7 +522,8 @@ int serprog_init(void) msg_pdbg(MSGHEADER "Maximum read-n length is %d\n", v); } bt = serprog_buses_supported; - sp_docommand(S_CMD_S_BUSTYPE, 1, &bt, 0, NULL); + if (sp_docommand(S_CMD_S_BUSTYPE, 1, &bt, 0, NULL)) + return 1; } if (serprog_buses_supported & BUS_NONSPI) { -- 1.7.10.3

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[PATCH] remove exit calls from sp_openserport
by Niklas Söderlund 30 Jul '12

30 Jul '12

Instead: - Print same error message as before but use msg_perr instead of perror - Return -1 instead of calling exit(1) All callers of sp_openserport where able to handle this change without much trouble. There already where other error cases that where taken care of, so adding one more will not change behavior of there callers. Signed-off-by: Niklas Söderlund <niso(a)kth.se> --- buspirate_spi.c | 2 ++ pony_spi.c | 3 ++- serial.c | 32 +++++++++++++++++++++++--------- serprog.c | 3 ++- 4 files changed, 29 insertions(+), 11 deletions(-) diff --git a/buspirate_spi.c b/buspirate_spi.c index f816afd..f18538a 100644 --- a/buspirate_spi.c +++ b/buspirate_spi.c @@ -39,6 +39,8 @@ static int buspirate_serialport_setup(char *dev) { /* 115200bps, 8 databits, no parity, 1 stopbit */ sp_fd = sp_openserport(dev, 115200); + if (sp_fd < 0) + return 1; return 0; } #else diff --git a/pony_spi.c b/pony_spi.c index b5dfc2f..3a413c7 100644 --- a/pony_spi.c +++ b/pony_spi.c @@ -99,7 +99,8 @@ int pony_spi_init(void) if (arg && strlen(arg)) { sp_fd = sp_openserport( arg, 9600 ); - have_device++; + if (sp_fd >= 0) + have_device++; } free(arg); diff --git a/serial.c b/serial.c index 0a56568..32d7e6a 100644 --- a/serial.c +++ b/serial.c @@ -113,8 +113,10 @@ fdtype sp_openserport(char *dev, unsigned int baud) (tolower((unsigned char)dev[1]) == 'o') && (tolower((unsigned char)dev[2]) == 'm')) { dev2 = malloc(strlen(dev) + 5); - if (!dev2) - sp_die("Error: Out of memory"); + if (!dev2) { + msg_perr("Error: Out of memory: %s\n", strerror(errno)); + return -1; + } strcpy(dev2, "\\\\.\\"); strcpy(dev2 + 4, dev); } @@ -123,33 +125,45 @@ fdtype sp_openserport(char *dev, unsigned int baud) if (dev2 != dev) free(dev2); if (fd == INVALID_HANDLE_VALUE) { - sp_die("Error: cannot open serial port"); + msg_perr("Error: cannot open serial port: %s\n", + strerror(errno)); + return -1; } DCB dcb; if (!GetCommState(fd, &dcb)) { - sp_die("Error: Could not fetch serial port configuration"); + msg_perr("Error: Could not fetch serial port configuration: %s\n", + strerror(errno)); + return -1; } + switch (baud) { case 9600: dcb.BaudRate = CBR_9600; break; case 19200: dcb.BaudRate = CBR_19200; break; case 38400: dcb.BaudRate = CBR_38400; break; case 57600: dcb.BaudRate = CBR_57600; break; case 115200: dcb.BaudRate = CBR_115200; break; - default: sp_die("Error: Could not set baud rate"); + default: msg_perr("Error: Could not set baud rate: %s\n", + strerror(errno)); + return -1; } dcb.ByteSize = 8; dcb.Parity = NOPARITY; dcb.StopBits = ONESTOPBIT; if (!SetCommState(fd, &dcb)) { - sp_die("Error: Could not change serial port configuration"); + msg_perr("Error: Could not change serial port configuration: %s\n", + strerror(errno)); + return -1; } return fd; #else struct termios options; int fd, i; fd = open(dev, O_RDWR | O_NOCTTY | O_NDELAY); - if (fd < 0) - sp_die("Error: cannot open serial port"); + if (fd < 0) { + msg_perr("Error: cannot open serial port: %s\n", + strerror(errno)); + return -1; + } fcntl(fd, F_SETFL, 0); tcgetattr(fd, &options); for (i = 0;; i++) { @@ -157,7 +171,7 @@ fdtype sp_openserport(char *dev, unsigned int baud) close(fd); msg_perr("Error: cannot configure for baudrate %d\n", baud); - exit(1); + return -1; } if (sp_baudtable[i].baud == baud) { cfsetispeed(&options, sp_baudtable[i].flag); diff --git a/serprog.c b/serprog.c index 65539a1..baa1eab 100644 --- a/serprog.c +++ b/serprog.c @@ -361,7 +361,8 @@ int serprog_init(void) } if (strlen(device)) { sp_fd = sp_openserport(device, atoi(baudport)); - have_device++; + if (sp_fd >= 0) + have_device++; } } if (device && !strlen(device)) { -- 1.7.10.2

2 2

[PATCH] remove exit calls from sp_opensocket
by Niklas Söderlund 30 Jul '12

30 Jul '12

Replace with return statements and adopt the only upstream caller which in turn all plumbing is place for Signed-off-by: Niklas Söderlund <niso(a)kth.se> --- serprog.c | 19 ++++++++++++++----- 1 file changed, 14 insertions(+), 5 deletions(-) diff --git a/serprog.c b/serprog.c index d06fb0b..02996ea 100644 --- a/serprog.c +++ b/serprog.c @@ -110,20 +110,25 @@ static int sp_opensocket(char *ip, unsigned int port) int sock; msg_pdbg(MSGHEADER "IP %s port %d\n", ip, port); sock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP); - if (sock < 0) - sp_die("Error: serprog cannot open socket"); + if (sock < 0) { + msg_perr("Error: serprog cannot open socket: %s\n", strerror(errno)); + return -1; + } hostPtr = gethostbyname(ip); if (NULL == hostPtr) { hostPtr = gethostbyaddr(ip, strlen(ip), AF_INET); - if (NULL == hostPtr) - sp_die("Error: cannot resolve"); + if (NULL == hostPtr) { + msg_perr("Error: cannot resolve: %s\n", strerror(errno)); + return -1; + } } sp.si.sin_family = AF_INET; sp.si.sin_port = htons(port); (void)memcpy(&sp.si.sin_addr, hostPtr->h_addr, hostPtr->h_length); if (connect(sock, &sp.s, sizeof(sp.si)) < 0) { close(sock); - sp_die("Error: serprog cannot connect"); + msg_perr("Error: serprog cannot connect: %s\n", strerror(errno)); + return -1; } /* We are latency limited, and sometimes do write-write-read * * (write-n) - so enable TCP_NODELAY. */ @@ -398,6 +403,10 @@ int serprog_init(void) } if (strlen(device)) { sp_fd = sp_opensocket(device, atoi(baudport)); + if (sp_fd < 0) { + free(device); + return 1; + } have_device++; } } -- 1.7.10.3

2 1

Re: [flashrom] [PATCH] remove exit call from internal_init
by Stefan Tauner 30 Jul '12

30 Jul '12

On Wed, 30 May 2012 12:24:19 -0700 David Hendricks <dhendrix(a)google.com> wrote: > This seems trivial, as internal_init() already does the right thing when a > return value is used here. indeed. thanks niklas! i have applied it in r1557. -- Kind regards/Mit freundlichen Grüßen, Stefan Tauner

1 0

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flashrom July 2012