| /* |
| * Regular cardbus driver ("yenta_socket") |
| * |
| * (C) Copyright 1999, 2000 Linus Torvalds |
| * |
| * Changelog: |
| * Aug 2002: Manfred Spraul <manfred@colorfullife.com> |
| * Dynamically adjust the size of the bridge resource |
| * |
| * May 2003: Dominik Brodowski <linux@brodo.de> |
| * Merge pci_socket.c and yenta.c into one file |
| */ |
| #include <linux/init.h> |
| #include <linux/pci.h> |
| #include <linux/workqueue.h> |
| #include <linux/interrupt.h> |
| #include <linux/delay.h> |
| #include <linux/module.h> |
| #include <linux/io.h> |
| #include <linux/slab.h> |
| |
| #include <pcmcia/ss.h> |
| |
| #include "yenta_socket.h" |
| #include "i82365.h" |
| |
| static bool disable_clkrun; |
| module_param(disable_clkrun, bool, 0444); |
| MODULE_PARM_DESC(disable_clkrun, "If PC card doesn't function properly, please try this option"); |
| |
| static bool isa_probe = 1; |
| module_param(isa_probe, bool, 0444); |
| MODULE_PARM_DESC(isa_probe, "If set ISA interrupts are probed (default). Set to N to disable probing"); |
| |
| static bool pwr_irqs_off; |
| module_param(pwr_irqs_off, bool, 0644); |
| MODULE_PARM_DESC(pwr_irqs_off, "Force IRQs off during power-on of slot. Use only when seeing IRQ storms!"); |
| |
| static char o2_speedup[] = "default"; |
| module_param_string(o2_speedup, o2_speedup, sizeof(o2_speedup), 0444); |
| MODULE_PARM_DESC(o2_speedup, "Use prefetch/burst for O2-bridges: 'on', 'off' " |
| "or 'default' (uses recommended behaviour for the detected bridge)"); |
| |
| /* |
| * Only probe "regular" interrupts, don't |
| * touch dangerous spots like the mouse irq, |
| * because there are mice that apparently |
| * get really confused if they get fondled |
| * too intimately. |
| * |
| * Default to 11, 10, 9, 7, 6, 5, 4, 3. |
| */ |
| static u32 isa_interrupts = 0x0ef8; |
| |
| |
| #define debug(x, s, args...) dev_dbg(&s->dev->dev, x, ##args) |
| |
| /* Don't ask.. */ |
| #define to_cycles(ns) ((ns)/120) |
| #define to_ns(cycles) ((cycles)*120) |
| |
| /* |
| * yenta PCI irq probing. |
| * currently only used in the TI/EnE initialization code |
| */ |
| #ifdef CONFIG_YENTA_TI |
| static int yenta_probe_cb_irq(struct yenta_socket *socket); |
| static unsigned int yenta_probe_irq(struct yenta_socket *socket, |
| u32 isa_irq_mask); |
| #endif |
| |
| |
| static unsigned int override_bios; |
| module_param(override_bios, uint, 0000); |
| MODULE_PARM_DESC(override_bios, "yenta ignore bios resource allocation"); |
| |
| /* |
| * Generate easy-to-use ways of reading a cardbus sockets |
| * regular memory space ("cb_xxx"), configuration space |
| * ("config_xxx") and compatibility space ("exca_xxxx") |
| */ |
| static inline u32 cb_readl(struct yenta_socket *socket, unsigned reg) |
| { |
| u32 val = readl(socket->base + reg); |
| debug("%04x %08x\n", socket, reg, val); |
| return val; |
| } |
| |
| static inline void cb_writel(struct yenta_socket *socket, unsigned reg, u32 val) |
| { |
| debug("%04x %08x\n", socket, reg, val); |
| writel(val, socket->base + reg); |
| readl(socket->base + reg); /* avoid problems with PCI write posting */ |
| } |
| |
| static inline u8 config_readb(struct yenta_socket *socket, unsigned offset) |
| { |
| u8 val; |
| pci_read_config_byte(socket->dev, offset, &val); |
| debug("%04x %02x\n", socket, offset, val); |
| return val; |
| } |
| |
| static inline u16 config_readw(struct yenta_socket *socket, unsigned offset) |
| { |
| u16 val; |
| pci_read_config_word(socket->dev, offset, &val); |
| debug("%04x %04x\n", socket, offset, val); |
| return val; |
| } |
| |
| static inline u32 config_readl(struct yenta_socket *socket, unsigned offset) |
| { |
| u32 val; |
| pci_read_config_dword(socket->dev, offset, &val); |
| debug("%04x %08x\n", socket, offset, val); |
| return val; |
| } |
| |
| static inline void config_writeb(struct yenta_socket *socket, unsigned offset, u8 val) |
| { |
| debug("%04x %02x\n", socket, offset, val); |
| pci_write_config_byte(socket->dev, offset, val); |
| } |
| |
| static inline void config_writew(struct yenta_socket *socket, unsigned offset, u16 val) |
| { |
| debug("%04x %04x\n", socket, offset, val); |
| pci_write_config_word(socket->dev, offset, val); |
| } |
| |
| static inline void config_writel(struct yenta_socket *socket, unsigned offset, u32 val) |
| { |
| debug("%04x %08x\n", socket, offset, val); |
| pci_write_config_dword(socket->dev, offset, val); |
| } |
| |
| static inline u8 exca_readb(struct yenta_socket *socket, unsigned reg) |
| { |
| u8 val = readb(socket->base + 0x800 + reg); |
| debug("%04x %02x\n", socket, reg, val); |
| return val; |
| } |
| |
| static inline u8 exca_readw(struct yenta_socket *socket, unsigned reg) |
| { |
| u16 val; |
| val = readb(socket->base + 0x800 + reg); |
| val |= readb(socket->base + 0x800 + reg + 1) << 8; |
| debug("%04x %04x\n", socket, reg, val); |
| return val; |
| } |
| |
| static inline void exca_writeb(struct yenta_socket *socket, unsigned reg, u8 val) |
| { |
| debug("%04x %02x\n", socket, reg, val); |
| writeb(val, socket->base + 0x800 + reg); |
| readb(socket->base + 0x800 + reg); /* PCI write posting... */ |
| } |
| |
| static void exca_writew(struct yenta_socket *socket, unsigned reg, u16 val) |
| { |
| debug("%04x %04x\n", socket, reg, val); |
| writeb(val, socket->base + 0x800 + reg); |
| writeb(val >> 8, socket->base + 0x800 + reg + 1); |
| |
| /* PCI write posting... */ |
| readb(socket->base + 0x800 + reg); |
| readb(socket->base + 0x800 + reg + 1); |
| } |
| |
| static ssize_t show_yenta_registers(struct device *yentadev, struct device_attribute *attr, char *buf) |
| { |
| struct pci_dev *dev = to_pci_dev(yentadev); |
| struct yenta_socket *socket = pci_get_drvdata(dev); |
| int offset = 0, i; |
| |
| offset = snprintf(buf, PAGE_SIZE, "CB registers:"); |
| for (i = 0; i < 0x24; i += 4) { |
| unsigned val; |
| if (!(i & 15)) |
| offset += snprintf(buf + offset, PAGE_SIZE - offset, "\n%02x:", i); |
| val = cb_readl(socket, i); |
| offset += snprintf(buf + offset, PAGE_SIZE - offset, " %08x", val); |
| } |
| |
| offset += snprintf(buf + offset, PAGE_SIZE - offset, "\n\nExCA registers:"); |
| for (i = 0; i < 0x45; i++) { |
| unsigned char val; |
| if (!(i & 7)) { |
| if (i & 8) { |
| memcpy(buf + offset, " -", 2); |
| offset += 2; |
| } else |
| offset += snprintf(buf + offset, PAGE_SIZE - offset, "\n%02x:", i); |
| } |
| val = exca_readb(socket, i); |
| offset += snprintf(buf + offset, PAGE_SIZE - offset, " %02x", val); |
| } |
| buf[offset++] = '\n'; |
| return offset; |
| } |
| |
| static DEVICE_ATTR(yenta_registers, S_IRUSR, show_yenta_registers, NULL); |
| |
| /* |
| * Ugh, mixed-mode cardbus and 16-bit pccard state: things depend |
| * on what kind of card is inserted.. |
| */ |
| static int yenta_get_status(struct pcmcia_socket *sock, unsigned int *value) |
| { |
| struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); |
| unsigned int val; |
| u32 state = cb_readl(socket, CB_SOCKET_STATE); |
| |
| val = (state & CB_3VCARD) ? SS_3VCARD : 0; |
| val |= (state & CB_XVCARD) ? SS_XVCARD : 0; |
| val |= (state & (CB_5VCARD | CB_3VCARD | CB_XVCARD | CB_YVCARD)) ? 0 : SS_PENDING; |
| val |= (state & (CB_CDETECT1 | CB_CDETECT2)) ? SS_PENDING : 0; |
| |
| |
| if (state & CB_CBCARD) { |
| val |= SS_CARDBUS; |
| val |= (state & CB_CARDSTS) ? SS_STSCHG : 0; |
| val |= (state & (CB_CDETECT1 | CB_CDETECT2)) ? 0 : SS_DETECT; |
| val |= (state & CB_PWRCYCLE) ? SS_POWERON | SS_READY : 0; |
| } else if (state & CB_16BITCARD) { |
| u8 status = exca_readb(socket, I365_STATUS); |
| val |= ((status & I365_CS_DETECT) == I365_CS_DETECT) ? SS_DETECT : 0; |
| if (exca_readb(socket, I365_INTCTL) & I365_PC_IOCARD) { |
| val |= (status & I365_CS_STSCHG) ? 0 : SS_STSCHG; |
| } else { |
| val |= (status & I365_CS_BVD1) ? 0 : SS_BATDEAD; |
| val |= (status & I365_CS_BVD2) ? 0 : SS_BATWARN; |
| } |
| val |= (status & I365_CS_WRPROT) ? SS_WRPROT : 0; |
| val |= (status & I365_CS_READY) ? SS_READY : 0; |
| val |= (status & I365_CS_POWERON) ? SS_POWERON : 0; |
| } |
| |
| *value = val; |
| return 0; |
| } |
| |
| static void yenta_set_power(struct yenta_socket *socket, socket_state_t *state) |
| { |
| /* some birdges require to use the ExCA registers to power 16bit cards */ |
| if (!(cb_readl(socket, CB_SOCKET_STATE) & CB_CBCARD) && |
| (socket->flags & YENTA_16BIT_POWER_EXCA)) { |
| u8 reg, old; |
| reg = old = exca_readb(socket, I365_POWER); |
| reg &= ~(I365_VCC_MASK | I365_VPP1_MASK | I365_VPP2_MASK); |
| |
| /* i82365SL-DF style */ |
| if (socket->flags & YENTA_16BIT_POWER_DF) { |
| switch (state->Vcc) { |
| case 33: |
| reg |= I365_VCC_3V; |
| break; |
| case 50: |
| reg |= I365_VCC_5V; |
| break; |
| default: |
| reg = 0; |
| break; |
| } |
| switch (state->Vpp) { |
| case 33: |
| case 50: |
| reg |= I365_VPP1_5V; |
| break; |
| case 120: |
| reg |= I365_VPP1_12V; |
| break; |
| } |
| } else { |
| /* i82365SL-B style */ |
| switch (state->Vcc) { |
| case 50: |
| reg |= I365_VCC_5V; |
| break; |
| default: |
| reg = 0; |
| break; |
| } |
| switch (state->Vpp) { |
| case 50: |
| reg |= I365_VPP1_5V | I365_VPP2_5V; |
| break; |
| case 120: |
| reg |= I365_VPP1_12V | I365_VPP2_12V; |
| break; |
| } |
| } |
| |
| if (reg != old) |
| exca_writeb(socket, I365_POWER, reg); |
| } else { |
| u32 reg = 0; /* CB_SC_STPCLK? */ |
| switch (state->Vcc) { |
| case 33: |
| reg = CB_SC_VCC_3V; |
| break; |
| case 50: |
| reg = CB_SC_VCC_5V; |
| break; |
| default: |
| reg = 0; |
| break; |
| } |
| switch (state->Vpp) { |
| case 33: |
| reg |= CB_SC_VPP_3V; |
| break; |
| case 50: |
| reg |= CB_SC_VPP_5V; |
| break; |
| case 120: |
| reg |= CB_SC_VPP_12V; |
| break; |
| } |
| if (reg != cb_readl(socket, CB_SOCKET_CONTROL)) |
| cb_writel(socket, CB_SOCKET_CONTROL, reg); |
| } |
| } |
| |
| static int yenta_set_socket(struct pcmcia_socket *sock, socket_state_t *state) |
| { |
| struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); |
| u16 bridge; |
| |
| /* if powering down: do it immediately */ |
| if (state->Vcc == 0) |
| yenta_set_power(socket, state); |
| |
| socket->io_irq = state->io_irq; |
| bridge = config_readw(socket, CB_BRIDGE_CONTROL) & ~(CB_BRIDGE_CRST | CB_BRIDGE_INTR); |
| if (cb_readl(socket, CB_SOCKET_STATE) & CB_CBCARD) { |
| u8 intr; |
| bridge |= (state->flags & SS_RESET) ? CB_BRIDGE_CRST : 0; |
| |
| /* ISA interrupt control? */ |
| intr = exca_readb(socket, I365_INTCTL); |
| intr = (intr & ~0xf); |
| if (!socket->dev->irq) { |
| intr |= socket->cb_irq ? socket->cb_irq : state->io_irq; |
| bridge |= CB_BRIDGE_INTR; |
| } |
| exca_writeb(socket, I365_INTCTL, intr); |
| } else { |
| u8 reg; |
| |
| reg = exca_readb(socket, I365_INTCTL) & (I365_RING_ENA | I365_INTR_ENA); |
| reg |= (state->flags & SS_RESET) ? 0 : I365_PC_RESET; |
| reg |= (state->flags & SS_IOCARD) ? I365_PC_IOCARD : 0; |
| if (state->io_irq != socket->dev->irq) { |
| reg |= state->io_irq; |
| bridge |= CB_BRIDGE_INTR; |
| } |
| exca_writeb(socket, I365_INTCTL, reg); |
| |
| reg = exca_readb(socket, I365_POWER) & (I365_VCC_MASK|I365_VPP1_MASK); |
| reg |= I365_PWR_NORESET; |
| if (state->flags & SS_PWR_AUTO) |
| reg |= I365_PWR_AUTO; |
| if (state->flags & SS_OUTPUT_ENA) |
| reg |= I365_PWR_OUT; |
| if (exca_readb(socket, I365_POWER) != reg) |
| exca_writeb(socket, I365_POWER, reg); |
| |
| /* CSC interrupt: no ISA irq for CSC */ |
| reg = exca_readb(socket, I365_CSCINT); |
| reg &= I365_CSC_IRQ_MASK; |
| reg |= I365_CSC_DETECT; |
| if (state->flags & SS_IOCARD) { |
| if (state->csc_mask & SS_STSCHG) |
| reg |= I365_CSC_STSCHG; |
| } else { |
| if (state->csc_mask & SS_BATDEAD) |
| reg |= I365_CSC_BVD1; |
| if (state->csc_mask & SS_BATWARN) |
| reg |= I365_CSC_BVD2; |
| if (state->csc_mask & SS_READY) |
| reg |= I365_CSC_READY; |
| } |
| exca_writeb(socket, I365_CSCINT, reg); |
| exca_readb(socket, I365_CSC); |
| if (sock->zoom_video) |
| sock->zoom_video(sock, state->flags & SS_ZVCARD); |
| } |
| config_writew(socket, CB_BRIDGE_CONTROL, bridge); |
| /* Socket event mask: get card insert/remove events.. */ |
| cb_writel(socket, CB_SOCKET_EVENT, -1); |
| cb_writel(socket, CB_SOCKET_MASK, CB_CDMASK); |
| |
| /* if powering up: do it as the last step when the socket is configured */ |
| if (state->Vcc != 0) |
| yenta_set_power(socket, state); |
| return 0; |
| } |
| |
| static int yenta_set_io_map(struct pcmcia_socket *sock, struct pccard_io_map *io) |
| { |
| struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); |
| int map; |
| unsigned char ioctl, addr, enable; |
| |
| map = io->map; |
| |
| if (map > 1) |
| return -EINVAL; |
| |
| enable = I365_ENA_IO(map); |
| addr = exca_readb(socket, I365_ADDRWIN); |
| |
| /* Disable the window before changing it.. */ |
| if (addr & enable) { |
| addr &= ~enable; |
| exca_writeb(socket, I365_ADDRWIN, addr); |
| } |
| |
| exca_writew(socket, I365_IO(map)+I365_W_START, io->start); |
| exca_writew(socket, I365_IO(map)+I365_W_STOP, io->stop); |
| |
| ioctl = exca_readb(socket, I365_IOCTL) & ~I365_IOCTL_MASK(map); |
| if (io->flags & MAP_0WS) |
| ioctl |= I365_IOCTL_0WS(map); |
| if (io->flags & MAP_16BIT) |
| ioctl |= I365_IOCTL_16BIT(map); |
| if (io->flags & MAP_AUTOSZ) |
| ioctl |= I365_IOCTL_IOCS16(map); |
| exca_writeb(socket, I365_IOCTL, ioctl); |
| |
| if (io->flags & MAP_ACTIVE) |
| exca_writeb(socket, I365_ADDRWIN, addr | enable); |
| return 0; |
| } |
| |
| static int yenta_set_mem_map(struct pcmcia_socket *sock, struct pccard_mem_map *mem) |
| { |
| struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); |
| struct pci_bus_region region; |
| int map; |
| unsigned char addr, enable; |
| unsigned int start, stop, card_start; |
| unsigned short word; |
| |
| pcibios_resource_to_bus(socket->dev, ®ion, mem->res); |
| |
| map = mem->map; |
| start = region.start; |
| stop = region.end; |
| card_start = mem->card_start; |
| |
| if (map > 4 || start > stop || ((start ^ stop) >> 24) || |
| (card_start >> 26) || mem->speed > 1000) |
| return -EINVAL; |
| |
| enable = I365_ENA_MEM(map); |
| addr = exca_readb(socket, I365_ADDRWIN); |
| if (addr & enable) { |
| addr &= ~enable; |
| exca_writeb(socket, I365_ADDRWIN, addr); |
| } |
| |
| exca_writeb(socket, CB_MEM_PAGE(map), start >> 24); |
| |
| word = (start >> 12) & 0x0fff; |
| if (mem->flags & MAP_16BIT) |
| word |= I365_MEM_16BIT; |
| if (mem->flags & MAP_0WS) |
| word |= I365_MEM_0WS; |
| exca_writew(socket, I365_MEM(map) + I365_W_START, word); |
| |
| word = (stop >> 12) & 0x0fff; |
| switch (to_cycles(mem->speed)) { |
| case 0: |
| break; |
| case 1: |
| word |= I365_MEM_WS0; |
| break; |
| case 2: |
| word |= I365_MEM_WS1; |
| break; |
| default: |
| word |= I365_MEM_WS1 | I365_MEM_WS0; |
| break; |
| } |
| exca_writew(socket, I365_MEM(map) + I365_W_STOP, word); |
| |
| word = ((card_start - start) >> 12) & 0x3fff; |
| if (mem->flags & MAP_WRPROT) |
| word |= I365_MEM_WRPROT; |
| if (mem->flags & MAP_ATTRIB) |
| word |= I365_MEM_REG; |
| exca_writew(socket, I365_MEM(map) + I365_W_OFF, word); |
| |
| if (mem->flags & MAP_ACTIVE) |
| exca_writeb(socket, I365_ADDRWIN, addr | enable); |
| return 0; |
| } |
| |
| |
| |
| static irqreturn_t yenta_interrupt(int irq, void *dev_id) |
| { |
| unsigned int events; |
| struct yenta_socket *socket = (struct yenta_socket *) dev_id; |
| u8 csc; |
| u32 cb_event; |
| |
| /* Clear interrupt status for the event */ |
| cb_event = cb_readl(socket, CB_SOCKET_EVENT); |
| cb_writel(socket, CB_SOCKET_EVENT, cb_event); |
| |
| csc = exca_readb(socket, I365_CSC); |
| |
| if (!(cb_event || csc)) |
| return IRQ_NONE; |
| |
| events = (cb_event & (CB_CD1EVENT | CB_CD2EVENT)) ? SS_DETECT : 0 ; |
| events |= (csc & I365_CSC_DETECT) ? SS_DETECT : 0; |
| if (exca_readb(socket, I365_INTCTL) & I365_PC_IOCARD) { |
| events |= (csc & I365_CSC_STSCHG) ? SS_STSCHG : 0; |
| } else { |
| events |= (csc & I365_CSC_BVD1) ? SS_BATDEAD : 0; |
| events |= (csc & I365_CSC_BVD2) ? SS_BATWARN : 0; |
| events |= (csc & I365_CSC_READY) ? SS_READY : 0; |
| } |
| |
| if (events) |
| pcmcia_parse_events(&socket->socket, events); |
| |
| return IRQ_HANDLED; |
| } |
| |
| static void yenta_interrupt_wrapper(unsigned long data) |
| { |
| struct yenta_socket *socket = (struct yenta_socket *) data; |
| |
| yenta_interrupt(0, (void *)socket); |
| socket->poll_timer.expires = jiffies + HZ; |
| add_timer(&socket->poll_timer); |
| } |
| |
| static void yenta_clear_maps(struct yenta_socket *socket) |
| { |
| int i; |
| struct resource res = { .start = 0, .end = 0x0fff }; |
| pccard_io_map io = { 0, 0, 0, 0, 1 }; |
| pccard_mem_map mem = { .res = &res, }; |
| |
| yenta_set_socket(&socket->socket, &dead_socket); |
| for (i = 0; i < 2; i++) { |
| io.map = i; |
| yenta_set_io_map(&socket->socket, &io); |
| } |
| for (i = 0; i < 5; i++) { |
| mem.map = i; |
| yenta_set_mem_map(&socket->socket, &mem); |
| } |
| } |
| |
| /* redoes voltage interrogation if required */ |
| static void yenta_interrogate(struct yenta_socket *socket) |
| { |
| u32 state; |
| |
| state = cb_readl(socket, CB_SOCKET_STATE); |
| if (!(state & (CB_5VCARD | CB_3VCARD | CB_XVCARD | CB_YVCARD)) || |
| (state & (CB_CDETECT1 | CB_CDETECT2 | CB_NOTACARD | CB_BADVCCREQ)) || |
| ((state & (CB_16BITCARD | CB_CBCARD)) == (CB_16BITCARD | CB_CBCARD))) |
| cb_writel(socket, CB_SOCKET_FORCE, CB_CVSTEST); |
| } |
| |
| /* Called at resume and initialization events */ |
| static int yenta_sock_init(struct pcmcia_socket *sock) |
| { |
| struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); |
| |
| exca_writeb(socket, I365_GBLCTL, 0x00); |
| exca_writeb(socket, I365_GENCTL, 0x00); |
| |
| /* Redo card voltage interrogation */ |
| yenta_interrogate(socket); |
| |
| yenta_clear_maps(socket); |
| |
| if (socket->type && socket->type->sock_init) |
| socket->type->sock_init(socket); |
| |
| /* Re-enable CSC interrupts */ |
| cb_writel(socket, CB_SOCKET_MASK, CB_CDMASK); |
| |
| return 0; |
| } |
| |
| static int yenta_sock_suspend(struct pcmcia_socket *sock) |
| { |
| struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); |
| |
| /* Disable CSC interrupts */ |
| cb_writel(socket, CB_SOCKET_MASK, 0x0); |
| |
| return 0; |
| } |
| |
| /* |
| * Use an adaptive allocation for the memory resource, |
| * sometimes the memory behind pci bridges is limited: |
| * 1/8 of the size of the io window of the parent. |
| * max 4 MB, min 16 kB. We try very hard to not get below |
| * the "ACC" values, though. |
| */ |
| #define BRIDGE_MEM_MAX (4*1024*1024) |
| #define BRIDGE_MEM_ACC (128*1024) |
| #define BRIDGE_MEM_MIN (16*1024) |
| |
| #define BRIDGE_IO_MAX 512 |
| #define BRIDGE_IO_ACC 256 |
| #define BRIDGE_IO_MIN 32 |
| |
| #ifndef PCIBIOS_MIN_CARDBUS_IO |
| #define PCIBIOS_MIN_CARDBUS_IO PCIBIOS_MIN_IO |
| #endif |
| |
| static int yenta_search_one_res(struct resource *root, struct resource *res, |
| u32 min) |
| { |
| u32 align, size, start, end; |
| |
| if (res->flags & IORESOURCE_IO) { |
| align = 1024; |
| size = BRIDGE_IO_MAX; |
| start = PCIBIOS_MIN_CARDBUS_IO; |
| end = ~0U; |
| } else { |
| unsigned long avail = root->end - root->start; |
| int i; |
| size = BRIDGE_MEM_MAX; |
| if (size > avail/8) { |
| size = (avail+1)/8; |
| /* round size down to next power of 2 */ |
| i = 0; |
| while ((size /= 2) != 0) |
| i++; |
| size = 1 << i; |
| } |
| if (size < min) |
| size = min; |
| align = size; |
| start = PCIBIOS_MIN_MEM; |
| end = ~0U; |
| } |
| |
| do { |
| if (allocate_resource(root, res, size, start, end, align, |
| NULL, NULL) == 0) { |
| return 1; |
| } |
| size = size/2; |
| align = size; |
| } while (size >= min); |
| |
| return 0; |
| } |
| |
| |
| static int yenta_search_res(struct yenta_socket *socket, struct resource *res, |
| u32 min) |
| { |
| struct resource *root; |
| int i; |
| |
| pci_bus_for_each_resource(socket->dev->bus, root, i) { |
| if (!root) |
| continue; |
| |
| if ((res->flags ^ root->flags) & |
| (IORESOURCE_IO | IORESOURCE_MEM | IORESOURCE_PREFETCH)) |
| continue; /* Wrong type */ |
| |
| if (yenta_search_one_res(root, res, min)) |
| return 1; |
| } |
| return 0; |
| } |
| |
| static int yenta_allocate_res(struct yenta_socket *socket, int nr, unsigned type, int addr_start, int addr_end) |
| { |
| struct pci_dev *dev = socket->dev; |
| struct resource *res; |
| struct pci_bus_region region; |
| unsigned mask; |
| |
| res = dev->resource + PCI_BRIDGE_RESOURCES + nr; |
| /* Already allocated? */ |
| if (res->parent) |
| return 0; |
| |
| /* The granularity of the memory limit is 4kB, on IO it's 4 bytes */ |
| mask = ~0xfff; |
| if (type & IORESOURCE_IO) |
| mask = ~3; |
| |
| res->name = dev->subordinate->name; |
| res->flags = type; |
| |
| region.start = config_readl(socket, addr_start) & mask; |
| region.end = config_readl(socket, addr_end) | ~mask; |
| if (region.start && region.end > region.start && !override_bios) { |
| pcibios_bus_to_resource(dev, res, ®ion); |
| if (pci_claim_resource(dev, PCI_BRIDGE_RESOURCES + nr) == 0) |
| return 0; |
| dev_printk(KERN_INFO, &dev->dev, |
| "Preassigned resource %d busy or not available, " |
| "reconfiguring...\n", |
| nr); |
| } |
| |
| if (type & IORESOURCE_IO) { |
| if ((yenta_search_res(socket, res, BRIDGE_IO_MAX)) || |
| (yenta_search_res(socket, res, BRIDGE_IO_ACC)) || |
| (yenta_search_res(socket, res, BRIDGE_IO_MIN))) |
| return 1; |
| } else { |
| if (type & IORESOURCE_PREFETCH) { |
| if ((yenta_search_res(socket, res, BRIDGE_MEM_MAX)) || |
| (yenta_search_res(socket, res, BRIDGE_MEM_ACC)) || |
| (yenta_search_res(socket, res, BRIDGE_MEM_MIN))) |
| return 1; |
| /* Approximating prefetchable by non-prefetchable */ |
| res->flags = IORESOURCE_MEM; |
| } |
| if ((yenta_search_res(socket, res, BRIDGE_MEM_MAX)) || |
| (yenta_search_res(socket, res, BRIDGE_MEM_ACC)) || |
| (yenta_search_res(socket, res, BRIDGE_MEM_MIN))) |
| return 1; |
| } |
| |
| dev_printk(KERN_INFO, &dev->dev, |
| "no resource of type %x available, trying to continue...\n", |
| type); |
| res->start = res->end = res->flags = 0; |
| return 0; |
| } |
| |
| /* |
| * Allocate the bridge mappings for the device.. |
| */ |
| static void yenta_allocate_resources(struct yenta_socket *socket) |
| { |
| int program = 0; |
| program += yenta_allocate_res(socket, 0, IORESOURCE_IO, |
| PCI_CB_IO_BASE_0, PCI_CB_IO_LIMIT_0); |
| program += yenta_allocate_res(socket, 1, IORESOURCE_IO, |
| PCI_CB_IO_BASE_1, PCI_CB_IO_LIMIT_1); |
| program += yenta_allocate_res(socket, 2, IORESOURCE_MEM|IORESOURCE_PREFETCH, |
| PCI_CB_MEMORY_BASE_0, PCI_CB_MEMORY_LIMIT_0); |
| program += yenta_allocate_res(socket, 3, IORESOURCE_MEM, |
| PCI_CB_MEMORY_BASE_1, PCI_CB_MEMORY_LIMIT_1); |
| if (program) |
| pci_setup_cardbus(socket->dev->subordinate); |
| } |
| |
| |
| /* |
| * Free the bridge mappings for the device.. |
| */ |
| static void yenta_free_resources(struct yenta_socket *socket) |
| { |
| int i; |
| for (i = 0; i < 4; i++) { |
| struct resource *res; |
| res = socket->dev->resource + PCI_BRIDGE_RESOURCES + i; |
| if (res->start != 0 && res->end != 0) |
| release_resource(res); |
| res->start = res->end = res->flags = 0; |
| } |
| } |
| |
| |
| /* |
| * Close it down - release our resources and go home.. |
| */ |
| static void yenta_close(struct pci_dev *dev) |
| { |
| struct yenta_socket *sock = pci_get_drvdata(dev); |
| |
| /* Remove the register attributes */ |
| device_remove_file(&dev->dev, &dev_attr_yenta_registers); |
| |
| /* we don't want a dying socket registered */ |
| pcmcia_unregister_socket(&sock->socket); |
| |
| /* Disable all events so we don't die in an IRQ storm */ |
| cb_writel(sock, CB_SOCKET_MASK, 0x0); |
| exca_writeb(sock, I365_CSCINT, 0); |
| |
| if (sock->cb_irq) |
| free_irq(sock->cb_irq, sock); |
| else |
| del_timer_sync(&sock->poll_timer); |
| |
| if (sock->base) |
| iounmap(sock->base); |
| yenta_free_resources(sock); |
| |
| pci_release_regions(dev); |
| pci_disable_device(dev); |
| pci_set_drvdata(dev, NULL); |
| } |
| |
| |
| static struct pccard_operations yenta_socket_operations = { |
| .init = yenta_sock_init, |
| .suspend = yenta_sock_suspend, |
| .get_status = yenta_get_status, |
| .set_socket = yenta_set_socket, |
| .set_io_map = yenta_set_io_map, |
| .set_mem_map = yenta_set_mem_map, |
| }; |
| |
| |
| #ifdef CONFIG_YENTA_TI |
| #include "ti113x.h" |
| #endif |
| #ifdef CONFIG_YENTA_RICOH |
| #include "ricoh.h" |
| #endif |
| #ifdef CONFIG_YENTA_TOSHIBA |
| #include "topic.h" |
| #endif |
| #ifdef CONFIG_YENTA_O2 |
| #include "o2micro.h" |
| #endif |
| |
| enum { |
| CARDBUS_TYPE_DEFAULT = -1, |
| CARDBUS_TYPE_TI, |
| CARDBUS_TYPE_TI113X, |
| CARDBUS_TYPE_TI12XX, |
| CARDBUS_TYPE_TI1250, |
| CARDBUS_TYPE_RICOH, |
| CARDBUS_TYPE_TOPIC95, |
| CARDBUS_TYPE_TOPIC97, |
| CARDBUS_TYPE_O2MICRO, |
| CARDBUS_TYPE_ENE, |
| }; |
| |
| /* |
| * Different cardbus controllers have slightly different |
| * initialization sequences etc details. List them here.. |
| */ |
| static struct cardbus_type cardbus_type[] = { |
| #ifdef CONFIG_YENTA_TI |
| [CARDBUS_TYPE_TI] = { |
| .override = ti_override, |
| .save_state = ti_save_state, |
| .restore_state = ti_restore_state, |
| .sock_init = ti_init, |
| }, |
| [CARDBUS_TYPE_TI113X] = { |
| .override = ti113x_override, |
| .save_state = ti_save_state, |
| .restore_state = ti_restore_state, |
| .sock_init = ti_init, |
| }, |
| [CARDBUS_TYPE_TI12XX] = { |
| .override = ti12xx_override, |
| .save_state = ti_save_state, |
| .restore_state = ti_restore_state, |
| .sock_init = ti_init, |
| }, |
| [CARDBUS_TYPE_TI1250] = { |
| .override = ti1250_override, |
| .save_state = ti_save_state, |
| .restore_state = ti_restore_state, |
| .sock_init = ti_init, |
| }, |
| [CARDBUS_TYPE_ENE] = { |
| .override = ene_override, |
| .save_state = ti_save_state, |
| .restore_state = ti_restore_state, |
| .sock_init = ti_init, |
| }, |
| #endif |
| #ifdef CONFIG_YENTA_RICOH |
| [CARDBUS_TYPE_RICOH] = { |
| .override = ricoh_override, |
| .save_state = ricoh_save_state, |
| .restore_state = ricoh_restore_state, |
| }, |
| #endif |
| #ifdef CONFIG_YENTA_TOSHIBA |
| [CARDBUS_TYPE_TOPIC95] = { |
| .override = topic95_override, |
| }, |
| [CARDBUS_TYPE_TOPIC97] = { |
| .override = topic97_override, |
| }, |
| #endif |
| #ifdef CONFIG_YENTA_O2 |
| [CARDBUS_TYPE_O2MICRO] = { |
| .override = o2micro_override, |
| .restore_state = o2micro_restore_state, |
| }, |
| #endif |
| }; |
| |
| |
| static unsigned int yenta_probe_irq(struct yenta_socket *socket, u32 isa_irq_mask) |
| { |
| int i; |
| unsigned long val; |
| u32 mask; |
| u8 reg; |
| |
| /* |
| * Probe for usable interrupts using the force |
| * register to generate bogus card status events. |
| */ |
| cb_writel(socket, CB_SOCKET_EVENT, -1); |
| cb_writel(socket, CB_SOCKET_MASK, CB_CSTSMASK); |
| reg = exca_readb(socket, I365_CSCINT); |
| exca_writeb(socket, I365_CSCINT, 0); |
| val = probe_irq_on() & isa_irq_mask; |
| for (i = 1; i < 16; i++) { |
| if (!((val >> i) & 1)) |
| continue; |
| exca_writeb(socket, I365_CSCINT, I365_CSC_STSCHG | (i << 4)); |
| cb_writel(socket, CB_SOCKET_FORCE, CB_FCARDSTS); |
| udelay(100); |
| cb_writel(socket, CB_SOCKET_EVENT, -1); |
| } |
| cb_writel(socket, CB_SOCKET_MASK, 0); |
| exca_writeb(socket, I365_CSCINT, reg); |
| |
| mask = probe_irq_mask(val) & 0xffff; |
| |
| return mask; |
| } |
| |
| |
| /* |
| * yenta PCI irq probing. |
| * currently only used in the TI/EnE initialization code |
| */ |
| #ifdef CONFIG_YENTA_TI |
| |
| /* interrupt handler, only used during probing */ |
| static irqreturn_t yenta_probe_handler(int irq, void *dev_id) |
| { |
| struct yenta_socket *socket = (struct yenta_socket *) dev_id; |
| u8 csc; |
| u32 cb_event; |
| |
| /* Clear interrupt status for the event */ |
| cb_event = cb_readl(socket, CB_SOCKET_EVENT); |
| cb_writel(socket, CB_SOCKET_EVENT, -1); |
| csc = exca_readb(socket, I365_CSC); |
| |
| if (cb_event || csc) { |
| socket->probe_status = 1; |
| return IRQ_HANDLED; |
| } |
| |
| return IRQ_NONE; |
| } |
| |
| /* probes the PCI interrupt, use only on override functions */ |
| static int yenta_probe_cb_irq(struct yenta_socket *socket) |
| { |
| u8 reg = 0; |
| |
| if (!socket->cb_irq) |
| return -1; |
| |
| socket->probe_status = 0; |
| |
| if (request_irq(socket->cb_irq, yenta_probe_handler, IRQF_SHARED, "yenta", socket)) { |
| dev_printk(KERN_WARNING, &socket->dev->dev, |
| "request_irq() in yenta_probe_cb_irq() failed!\n"); |
| return -1; |
| } |
| |
| /* generate interrupt, wait */ |
| if (!socket->dev->irq) |
| reg = exca_readb(socket, I365_CSCINT); |
| exca_writeb(socket, I365_CSCINT, reg | I365_CSC_STSCHG); |
| cb_writel(socket, CB_SOCKET_EVENT, -1); |
| cb_writel(socket, CB_SOCKET_MASK, CB_CSTSMASK); |
| cb_writel(socket, CB_SOCKET_FORCE, CB_FCARDSTS); |
| |
| msleep(100); |
| |
| /* disable interrupts */ |
| cb_writel(socket, CB_SOCKET_MASK, 0); |
| exca_writeb(socket, I365_CSCINT, reg); |
| cb_writel(socket, CB_SOCKET_EVENT, -1); |
| exca_readb(socket, I365_CSC); |
| |
| free_irq(socket->cb_irq, socket); |
| |
| return (int) socket->probe_status; |
| } |
| |
| #endif /* CONFIG_YENTA_TI */ |
| |
| |
| /* |
| * Set static data that doesn't need re-initializing.. |
| */ |
| static void yenta_get_socket_capabilities(struct yenta_socket *socket, u32 isa_irq_mask) |
| { |
| socket->socket.pci_irq = socket->cb_irq; |
| if (isa_probe) |
| socket->socket.irq_mask = yenta_probe_irq(socket, isa_irq_mask); |
| else |
| socket->socket.irq_mask = 0; |
| |
| dev_printk(KERN_INFO, &socket->dev->dev, |
| "ISA IRQ mask 0x%04x, PCI irq %d\n", |
| socket->socket.irq_mask, socket->cb_irq); |
| } |
| |
| /* |
| * Initialize the standard cardbus registers |
| */ |
| static void yenta_config_init(struct yenta_socket *socket) |
| { |
| u16 bridge; |
| struct pci_dev *dev = socket->dev; |
| struct pci_bus_region region; |
| |
| pcibios_resource_to_bus(socket->dev, ®ion, &dev->resource[0]); |
| |
| config_writel(socket, CB_LEGACY_MODE_BASE, 0); |
| config_writel(socket, PCI_BASE_ADDRESS_0, region.start); |
| config_writew(socket, PCI_COMMAND, |
| PCI_COMMAND_IO | |
| PCI_COMMAND_MEMORY | |
| PCI_COMMAND_MASTER | |
| PCI_COMMAND_WAIT); |
| |
| /* MAGIC NUMBERS! Fixme */ |
| config_writeb(socket, PCI_CACHE_LINE_SIZE, L1_CACHE_BYTES / 4); |
| config_writeb(socket, PCI_LATENCY_TIMER, 168); |
| config_writel(socket, PCI_PRIMARY_BUS, |
| (176 << 24) | /* sec. latency timer */ |
| ((unsigned int)dev->subordinate->busn_res.end << 16) | /* subordinate bus */ |
| ((unsigned int)dev->subordinate->busn_res.start << 8) | /* secondary bus */ |
| dev->subordinate->primary); /* primary bus */ |
| |
| /* |
| * Set up the bridging state: |
| * - enable write posting. |
| * - memory window 0 prefetchable, window 1 non-prefetchable |
| * - PCI interrupts enabled if a PCI interrupt exists.. |
| */ |
| bridge = config_readw(socket, CB_BRIDGE_CONTROL); |
| bridge &= ~(CB_BRIDGE_CRST | CB_BRIDGE_PREFETCH1 | CB_BRIDGE_ISAEN | CB_BRIDGE_VGAEN); |
| bridge |= CB_BRIDGE_PREFETCH0 | CB_BRIDGE_POSTEN; |
| config_writew(socket, CB_BRIDGE_CONTROL, bridge); |
| } |
| |
| /** |
| * yenta_fixup_parent_bridge - Fix subordinate bus# of the parent bridge |
| * @cardbus_bridge: The PCI bus which the CardBus bridge bridges to |
| * |
| * Checks if devices on the bus which the CardBus bridge bridges to would be |
| * invisible during PCI scans because of a misconfigured subordinate number |
| * of the parent brige - some BIOSes seem to be too lazy to set it right. |
| * Does the fixup carefully by checking how far it can go without conflicts. |
| * See http://bugzilla.kernel.org/show_bug.cgi?id=2944 for more information. |
| */ |
| static void yenta_fixup_parent_bridge(struct pci_bus *cardbus_bridge) |
| { |
| struct list_head *tmp; |
| unsigned char upper_limit; |
| /* |
| * We only check and fix the parent bridge: All systems which need |
| * this fixup that have been reviewed are laptops and the only bridge |
| * which needed fixing was the parent bridge of the CardBus bridge: |
| */ |
| struct pci_bus *bridge_to_fix = cardbus_bridge->parent; |
| |
| /* Check bus numbers are already set up correctly: */ |
| if (bridge_to_fix->busn_res.end >= cardbus_bridge->busn_res.end) |
| return; /* The subordinate number is ok, nothing to do */ |
| |
| if (!bridge_to_fix->parent) |
| return; /* Root bridges are ok */ |
| |
| /* stay within the limits of the bus range of the parent: */ |
| upper_limit = bridge_to_fix->parent->busn_res.end; |
| |
| /* check the bus ranges of all silbling bridges to prevent overlap */ |
| list_for_each(tmp, &bridge_to_fix->parent->children) { |
| struct pci_bus *silbling = pci_bus_b(tmp); |
| /* |
| * If the silbling has a higher secondary bus number |
| * and it's secondary is equal or smaller than our |
| * current upper limit, set the new upper limit to |
| * the bus number below the silbling's range: |
| */ |
| if (silbling->busn_res.start > bridge_to_fix->busn_res.end |
| && silbling->busn_res.start <= upper_limit) |
| upper_limit = silbling->busn_res.start - 1; |
| } |
| |
| /* Show that the wanted subordinate number is not possible: */ |
| if (cardbus_bridge->busn_res.end > upper_limit) |
| dev_printk(KERN_WARNING, &cardbus_bridge->dev, |
| "Upper limit for fixing this " |
| "bridge's parent bridge: #%02x\n", upper_limit); |
| |
| /* If we have room to increase the bridge's subordinate number, */ |
| if (bridge_to_fix->busn_res.end < upper_limit) { |
| |
| /* use the highest number of the hidden bus, within limits */ |
| unsigned char subordinate_to_assign = |
| min_t(int, cardbus_bridge->busn_res.end, upper_limit); |
| |
| dev_printk(KERN_INFO, &bridge_to_fix->dev, |
| "Raising subordinate bus# of parent " |
| "bus (#%02x) from #%02x to #%02x\n", |
| bridge_to_fix->number, |
| (int)bridge_to_fix->busn_res.end, subordinate_to_assign); |
| |
| /* Save the new subordinate in the bus struct of the bridge */ |
| bridge_to_fix->busn_res.end = subordinate_to_assign; |
| |
| /* and update the PCI config space with the new subordinate */ |
| pci_write_config_byte(bridge_to_fix->self, |
| PCI_SUBORDINATE_BUS, bridge_to_fix->busn_res.end); |
| } |
| } |
| |
| /* |
| * Initialize a cardbus controller. Make sure we have a usable |
| * interrupt, and that we can map the cardbus area. Fill in the |
| * socket information structure.. |
| */ |
| static int yenta_probe(struct pci_dev *dev, const struct pci_device_id *id) |
| { |
| struct yenta_socket *socket; |
| int ret; |
| |
| /* |
| * If we failed to assign proper bus numbers for this cardbus |
| * controller during PCI probe, its subordinate pci_bus is NULL. |
| * Bail out if so. |
| */ |
| if (!dev->subordinate) { |
| dev_printk(KERN_ERR, &dev->dev, "no bus associated! " |
| "(try 'pci=assign-busses')\n"); |
| return -ENODEV; |
| } |
| |
| socket = kzalloc(sizeof(struct yenta_socket), GFP_KERNEL); |
| if (!socket) |
| return -ENOMEM; |
| |
| /* prepare pcmcia_socket */ |
| socket->socket.ops = ¥ta_socket_operations; |
| socket->socket.resource_ops = &pccard_nonstatic_ops; |
| socket->socket.dev.parent = &dev->dev; |
| socket->socket.driver_data = socket; |
| socket->socket.owner = THIS_MODULE; |
| socket->socket.features = SS_CAP_PAGE_REGS | SS_CAP_PCCARD; |
| socket->socket.map_size = 0x1000; |
| socket->socket.cb_dev = dev; |
| |
| /* prepare struct yenta_socket */ |
| socket->dev = dev; |
| pci_set_drvdata(dev, socket); |
| |
| /* |
| * Do some basic sanity checking.. |
| */ |
| if (pci_enable_device(dev)) { |
| ret = -EBUSY; |
| goto free; |
| } |
| |
| ret = pci_request_regions(dev, "yenta_socket"); |
| if (ret) |
| goto disable; |
| |
| if (!pci_resource_start(dev, 0)) { |
| dev_printk(KERN_ERR, &dev->dev, "No cardbus resource!\n"); |
| ret = -ENODEV; |
| goto release; |
| } |
| |
| /* |
| * Ok, start setup.. Map the cardbus registers, |
| * and request the IRQ. |
| */ |
| socket->base = ioremap(pci_resource_start(dev, 0), 0x1000); |
| if (!socket->base) { |
| ret = -ENOMEM; |
| goto release; |
| } |
| |
| /* |
| * report the subsystem vendor and device for help debugging |
| * the irq stuff... |
| */ |
| dev_printk(KERN_INFO, &dev->dev, "CardBus bridge found [%04x:%04x]\n", |
| dev->subsystem_vendor, dev->subsystem_device); |
| |
| yenta_config_init(socket); |
| |
| /* Disable all events */ |
| cb_writel(socket, CB_SOCKET_MASK, 0x0); |
| |
| /* Set up the bridge regions.. */ |
| yenta_allocate_resources(socket); |
| |
| socket->cb_irq = dev->irq; |
| |
| /* Do we have special options for the device? */ |
| if (id->driver_data != CARDBUS_TYPE_DEFAULT && |
| id->driver_data < ARRAY_SIZE(cardbus_type)) { |
| socket->type = &cardbus_type[id->driver_data]; |
| |
| ret = socket->type->override(socket); |
| if (ret < 0) |
| goto unmap; |
| } |
| |
| /* We must finish initialization here */ |
| |
| if (!socket->cb_irq || request_irq(socket->cb_irq, yenta_interrupt, IRQF_SHARED, "yenta", socket)) { |
| /* No IRQ or request_irq failed. Poll */ |
| socket->cb_irq = 0; /* But zero is a valid IRQ number. */ |
| init_timer(&socket->poll_timer); |
| socket->poll_timer.function = yenta_interrupt_wrapper; |
| socket->poll_timer.data = (unsigned long)socket; |
| socket->poll_timer.expires = jiffies + HZ; |
| add_timer(&socket->poll_timer); |
| dev_printk(KERN_INFO, &dev->dev, |
| "no PCI IRQ, CardBus support disabled for this " |
| "socket.\n"); |
| dev_printk(KERN_INFO, &dev->dev, |
| "check your BIOS CardBus, BIOS IRQ or ACPI " |
| "settings.\n"); |
| } else { |
| socket->socket.features |= SS_CAP_CARDBUS; |
| } |
| |
| /* Figure out what the dang thing can do for the PCMCIA layer... */ |
| yenta_interrogate(socket); |
| yenta_get_socket_capabilities(socket, isa_interrupts); |
| dev_printk(KERN_INFO, &dev->dev, |
| "Socket status: %08x\n", cb_readl(socket, CB_SOCKET_STATE)); |
| |
| yenta_fixup_parent_bridge(dev->subordinate); |
| |
| /* Register it with the pcmcia layer.. */ |
| ret = pcmcia_register_socket(&socket->socket); |
| if (ret == 0) { |
| /* Add the yenta register attributes */ |
| ret = device_create_file(&dev->dev, &dev_attr_yenta_registers); |
| if (ret == 0) |
| goto out; |
| |
| /* error path... */ |
| pcmcia_unregister_socket(&socket->socket); |
| } |
| |
| unmap: |
| iounmap(socket->base); |
| release: |
| pci_release_regions(dev); |
| disable: |
| pci_disable_device(dev); |
| free: |
| kfree(socket); |
| out: |
| return ret; |
| } |
| |
| #ifdef CONFIG_PM |
| static int yenta_dev_suspend_noirq(struct device *dev) |
| { |
| struct pci_dev *pdev = to_pci_dev(dev); |
| struct yenta_socket *socket = pci_get_drvdata(pdev); |
| |
| if (!socket) |
| return 0; |
| |
| if (socket->type && socket->type->save_state) |
| socket->type->save_state(socket); |
| |
| pci_save_state(pdev); |
| pci_read_config_dword(pdev, 16*4, &socket->saved_state[0]); |
| pci_read_config_dword(pdev, 17*4, &socket->saved_state[1]); |
| pci_disable_device(pdev); |
| |
| return 0; |
| } |
| |
| static int yenta_dev_resume_noirq(struct device *dev) |
| { |
| struct pci_dev *pdev = to_pci_dev(dev); |
| struct yenta_socket *socket = pci_get_drvdata(pdev); |
| int ret; |
| |
| if (!socket) |
| return 0; |
| |
| pci_write_config_dword(pdev, 16*4, socket->saved_state[0]); |
| pci_write_config_dword(pdev, 17*4, socket->saved_state[1]); |
| |
| ret = pci_enable_device(pdev); |
| if (ret) |
| return ret; |
| |
| pci_set_master(pdev); |
| |
| if (socket->type && socket->type->restore_state) |
| socket->type->restore_state(socket); |
| |
| return 0; |
| } |
| |
| static const struct dev_pm_ops yenta_pm_ops = { |
| .suspend_noirq = yenta_dev_suspend_noirq, |
| .resume_noirq = yenta_dev_resume_noirq, |
| .freeze_noirq = yenta_dev_suspend_noirq, |
| .thaw_noirq = yenta_dev_resume_noirq, |
| .poweroff_noirq = yenta_dev_suspend_noirq, |
| .restore_noirq = yenta_dev_resume_noirq, |
| }; |
| |
| #define YENTA_PM_OPS (¥ta_pm_ops) |
| #else |
| #define YENTA_PM_OPS NULL |
| #endif |
| |
| #define CB_ID(vend, dev, type) \ |
| { \ |
| .vendor = vend, \ |
| .device = dev, \ |
| .subvendor = PCI_ANY_ID, \ |
| .subdevice = PCI_ANY_ID, \ |
| .class = PCI_CLASS_BRIDGE_CARDBUS << 8, \ |
| .class_mask = ~0, \ |
| .driver_data = CARDBUS_TYPE_##type, \ |
| } |
| |
| static DEFINE_PCI_DEVICE_TABLE(yenta_table) = { |
| CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1031, TI), |
| |
| /* |
| * TBD: Check if these TI variants can use more |
| * advanced overrides instead. (I can't get the |
| * data sheets for these devices. --rmk) |
| */ |
| #ifdef CONFIG_YENTA_TI |
| CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1210, TI), |
| |
| CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1130, TI113X), |
| CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1131, TI113X), |
| |
| CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1211, TI12XX), |
| CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1220, TI12XX), |
| CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1221, TI12XX), |
| CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1225, TI12XX), |
| CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1251A, TI12XX), |
| CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1251B, TI12XX), |
| CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1420, TI12XX), |
| CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1450, TI12XX), |
| CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1451A, TI12XX), |
| CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1510, TI12XX), |
| CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1520, TI12XX), |
| CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1620, TI12XX), |
| CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4410, TI12XX), |
| CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4450, TI12XX), |
| CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4451, TI12XX), |
| CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4510, TI12XX), |
| CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4520, TI12XX), |
| |
| CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1250, TI1250), |
| CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1410, TI1250), |
| |
| CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XX21_XX11, TI12XX), |
| CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X515, TI12XX), |
| CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XX12, TI12XX), |
| CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X420, TI12XX), |
| CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X620, TI12XX), |
| CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_7410, TI12XX), |
| CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_7510, TI12XX), |
| CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_7610, TI12XX), |
| |
| CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_710, ENE), |
| CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_712, ENE), |
| CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_720, ENE), |
| CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_722, ENE), |
| CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1211, ENE), |
| CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1225, ENE), |
| CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1410, ENE), |
| CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1420, ENE), |
| #endif /* CONFIG_YENTA_TI */ |
| |
| #ifdef CONFIG_YENTA_RICOH |
| CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C465, RICOH), |
| CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C466, RICOH), |
| CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C475, RICOH), |
| CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C476, RICOH), |
| CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C478, RICOH), |
| #endif |
| |
| #ifdef CONFIG_YENTA_TOSHIBA |
| CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC95, TOPIC95), |
| CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC97, TOPIC97), |
| CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC100, TOPIC97), |
| #endif |
| |
| #ifdef CONFIG_YENTA_O2 |
| CB_ID(PCI_VENDOR_ID_O2, PCI_ANY_ID, O2MICRO), |
| #endif |
| |
| /* match any cardbus bridge */ |
| CB_ID(PCI_ANY_ID, PCI_ANY_ID, DEFAULT), |
| { /* all zeroes */ } |
| }; |
| MODULE_DEVICE_TABLE(pci, yenta_table); |
| |
| |
| static struct pci_driver yenta_cardbus_driver = { |
| .name = "yenta_cardbus", |
| .id_table = yenta_table, |
| .probe = yenta_probe, |
| .remove = yenta_close, |
| .driver.pm = YENTA_PM_OPS, |
| }; |
| |
| module_pci_driver(yenta_cardbus_driver); |
| |
| MODULE_LICENSE("GPL"); |