Lines Matching full:dev
34 static inline uint8_t r852_read_reg(struct r852_device *dev, int address) in r852_read_reg() argument
36 uint8_t reg = readb(dev->mmio + address); in r852_read_reg()
41 static inline void r852_write_reg(struct r852_device *dev, in r852_write_reg() argument
44 writeb(value, dev->mmio + address); in r852_write_reg()
49 static inline uint32_t r852_read_reg_dword(struct r852_device *dev, int address) in r852_read_reg_dword() argument
51 uint32_t reg = le32_to_cpu(readl(dev->mmio + address)); in r852_read_reg_dword()
56 static inline void r852_write_reg_dword(struct r852_device *dev, in r852_write_reg_dword() argument
59 writel(cpu_to_le32(value), dev->mmio + address); in r852_write_reg_dword()
71 static void r852_dma_test(struct r852_device *dev) in r852_dma_test() argument
73 dev->dma_usable = (r852_read_reg(dev, R852_DMA_CAP) & in r852_dma_test()
76 if (!dev->dma_usable) in r852_dma_test()
81 dev->dma_usable = 0; in r852_dma_test()
87 * Expects dev->dma_dir and dev->dma_state be set
89 static void r852_dma_enable(struct r852_device *dev) in r852_dma_enable() argument
94 dma_reg = r852_read_reg_dword(dev, R852_DMA_SETTINGS); in r852_dma_enable()
97 if (dev->dma_dir) in r852_dma_enable()
100 if (dev->dma_state == DMA_INTERNAL) { in r852_dma_enable()
104 r852_write_reg_dword(dev, R852_DMA_ADDR, in r852_dma_enable()
105 cpu_to_le32(dev->phys_bounce_buffer)); in r852_dma_enable()
108 r852_write_reg_dword(dev, R852_DMA_ADDR, in r852_dma_enable()
109 cpu_to_le32(dev->phys_dma_addr)); in r852_dma_enable()
113 r852_read_reg_dword(dev, R852_DMA_ADDR); in r852_dma_enable()
115 r852_write_reg_dword(dev, R852_DMA_SETTINGS, dma_reg); in r852_dma_enable()
118 dma_irq_reg = r852_read_reg_dword(dev, R852_DMA_IRQ_ENABLE); in r852_dma_enable()
119 r852_write_reg_dword(dev, R852_DMA_IRQ_ENABLE, in r852_dma_enable()
130 static void r852_dma_done(struct r852_device *dev, int error) in r852_dma_done() argument
132 WARN_ON(dev->dma_stage == 0); in r852_dma_done()
134 r852_write_reg_dword(dev, R852_DMA_IRQ_STA, in r852_dma_done()
135 r852_read_reg_dword(dev, R852_DMA_IRQ_STA)); in r852_dma_done()
137 r852_write_reg_dword(dev, R852_DMA_SETTINGS, 0); in r852_dma_done()
138 r852_write_reg_dword(dev, R852_DMA_IRQ_ENABLE, 0); in r852_dma_done()
141 r852_write_reg_dword(dev, R852_DMA_ADDR, in r852_dma_done()
142 cpu_to_le32(dev->phys_bounce_buffer)); in r852_dma_done()
143 r852_read_reg_dword(dev, R852_DMA_ADDR); in r852_dma_done()
145 dev->dma_error = error; in r852_dma_done()
146 dev->dma_stage = 0; in r852_dma_done()
148 if (dev->phys_dma_addr && dev->phys_dma_addr != dev->phys_bounce_buffer) in r852_dma_done()
149 dma_unmap_single(&dev->pci_dev->dev, dev->phys_dma_addr, in r852_dma_done()
151 dev->dma_dir ? DMA_FROM_DEVICE : DMA_TO_DEVICE); in r852_dma_done()
157 static int r852_dma_wait(struct r852_device *dev) in r852_dma_wait() argument
159 long timeout = wait_for_completion_timeout(&dev->dma_done, in r852_dma_wait()
172 static void r852_do_dma(struct r852_device *dev, uint8_t *buf, int do_read) in r852_do_dma() argument
178 dev->dma_error = 0; in r852_do_dma()
181 dev->dma_dir = do_read; in r852_do_dma()
182 dev->dma_stage = 1; in r852_do_dma()
183 reinit_completion(&dev->dma_done); in r852_do_dma()
189 dev->dma_state = do_read ? DMA_INTERNAL : DMA_MEMORY; in r852_do_dma()
196 dev->phys_dma_addr = dma_map_single(&dev->pci_dev->dev, buf, in r852_do_dma()
199 if (dma_mapping_error(&dev->pci_dev->dev, dev->phys_dma_addr)) in r852_do_dma()
205 dev->phys_dma_addr = dev->phys_bounce_buffer; in r852_do_dma()
207 memcpy(dev->bounce_buffer, buf, R852_DMA_LEN); in r852_do_dma()
211 spin_lock_irqsave(&dev->irqlock, flags); in r852_do_dma()
212 r852_dma_enable(dev); in r852_do_dma()
213 spin_unlock_irqrestore(&dev->irqlock, flags); in r852_do_dma()
216 error = r852_dma_wait(dev); in r852_do_dma()
219 r852_dma_done(dev, error); in r852_do_dma()
224 memcpy((void *)buf, dev->bounce_buffer, R852_DMA_LEN); in r852_do_dma()
232 struct r852_device *dev = r852_get_dev(nand_to_mtd(chip)); in r852_write_buf() local
236 if (dev->card_unstable) in r852_write_buf()
240 if (len == R852_DMA_LEN && dev->dma_usable) { in r852_write_buf()
241 r852_do_dma(dev, (uint8_t *)buf, 0); in r852_write_buf()
248 r852_write_reg_dword(dev, R852_DATALINE, reg); in r852_write_buf()
256 r852_write_reg(dev, R852_DATALINE, *buf++); in r852_write_buf()
266 struct r852_device *dev = r852_get_dev(nand_to_mtd(chip)); in r852_read_buf() local
269 if (dev->card_unstable) { in r852_read_buf()
277 if (len == R852_DMA_LEN && dev->dma_usable) { in r852_read_buf()
278 r852_do_dma(dev, buf, 1); in r852_read_buf()
285 reg = r852_read_reg_dword(dev, R852_DATALINE); in r852_read_buf()
295 *buf++ = r852_read_reg(dev, R852_DATALINE); in r852_read_buf()
303 struct r852_device *dev = r852_get_dev(nand_to_mtd(chip)); in r852_read_byte() local
306 if (dev->card_unstable) in r852_read_byte()
309 return r852_read_reg(dev, R852_DATALINE); in r852_read_byte()
317 struct r852_device *dev = r852_get_dev(nand_to_mtd(chip)); in r852_cmdctl() local
319 if (dev->card_unstable) in r852_cmdctl()
324 dev->ctlreg &= ~(R852_CTL_DATA | R852_CTL_COMMAND | in r852_cmdctl()
328 dev->ctlreg |= R852_CTL_DATA; in r852_cmdctl()
331 dev->ctlreg |= R852_CTL_COMMAND; in r852_cmdctl()
334 dev->ctlreg |= (R852_CTL_CARDENABLE | R852_CTL_ON); in r852_cmdctl()
336 dev->ctlreg &= ~R852_CTL_WRITE; in r852_cmdctl()
340 dev->ctlreg |= R852_CTL_WRITE; in r852_cmdctl()
342 r852_write_reg(dev, R852_CTL, dev->ctlreg); in r852_cmdctl()
347 if (dat == NAND_CMD_SEQIN && (dev->ctlreg & R852_CTL_COMMAND)) { in r852_cmdctl()
348 dev->ctlreg |= R852_CTL_WRITE; in r852_cmdctl()
349 r852_write_reg(dev, R852_CTL, dev->ctlreg); in r852_cmdctl()
353 r852_write_reg(dev, R852_DATALINE, dat); in r852_cmdctl()
362 struct r852_device *dev = nand_get_controller_data(chip); in r852_wait() local
376 if (dev->dma_error) { in r852_wait()
378 dev->dma_error = 0; in r852_wait()
389 struct r852_device *dev = r852_get_dev(nand_to_mtd(chip)); in r852_ready() local
390 if (dev->card_unstable) in r852_ready()
393 return !(r852_read_reg(dev, R852_CARD_STA) & R852_CARD_STA_BUSY); in r852_ready()
403 struct r852_device *dev = r852_get_dev(nand_to_mtd(chip)); in r852_ecc_hwctl() local
405 if (dev->card_unstable) in r852_ecc_hwctl()
412 dev->ctlreg |= R852_CTL_ECC_ENABLE; in r852_ecc_hwctl()
415 r852_write_reg(dev, R852_CTL, in r852_ecc_hwctl()
416 dev->ctlreg | R852_CTL_ECC_ACCESS); in r852_ecc_hwctl()
418 r852_read_reg_dword(dev, R852_DATALINE); in r852_ecc_hwctl()
419 r852_write_reg(dev, R852_CTL, dev->ctlreg); in r852_ecc_hwctl()
424 dev->ctlreg &= ~R852_CTL_ECC_ENABLE; in r852_ecc_hwctl()
425 r852_write_reg(dev, R852_CTL, dev->ctlreg); in r852_ecc_hwctl()
436 struct r852_device *dev = r852_get_dev(nand_to_mtd(chip)); in r852_ecc_calculate() local
440 if (dev->card_unstable) in r852_ecc_calculate()
443 dev->ctlreg &= ~R852_CTL_ECC_ENABLE; in r852_ecc_calculate()
444 r852_write_reg(dev, R852_CTL, dev->ctlreg | R852_CTL_ECC_ACCESS); in r852_ecc_calculate()
446 ecc1 = r852_read_reg_dword(dev, R852_DATALINE); in r852_ecc_calculate()
447 ecc2 = r852_read_reg_dword(dev, R852_DATALINE); in r852_ecc_calculate()
457 r852_write_reg(dev, R852_CTL, dev->ctlreg); in r852_ecc_calculate()
472 struct r852_device *dev = r852_get_dev(nand_to_mtd(chip)); in r852_ecc_correct() local
474 if (dev->card_unstable) in r852_ecc_correct()
477 if (dev->dma_error) { in r852_ecc_correct()
478 dev->dma_error = 0; in r852_ecc_correct()
482 r852_write_reg(dev, R852_CTL, dev->ctlreg | R852_CTL_ECC_ACCESS); in r852_ecc_correct()
483 ecc_reg = r852_read_reg_dword(dev, R852_DATALINE); in r852_ecc_correct()
484 r852_write_reg(dev, R852_CTL, dev->ctlreg); in r852_ecc_correct()
532 static void r852_engine_enable(struct r852_device *dev) in r852_engine_enable() argument
534 if (r852_read_reg_dword(dev, R852_HW) & R852_HW_UNKNOWN) { in r852_engine_enable()
535 r852_write_reg(dev, R852_CTL, R852_CTL_RESET | R852_CTL_ON); in r852_engine_enable()
536 r852_write_reg_dword(dev, R852_HW, R852_HW_ENABLED); in r852_engine_enable()
538 r852_write_reg_dword(dev, R852_HW, R852_HW_ENABLED); in r852_engine_enable()
539 r852_write_reg(dev, R852_CTL, R852_CTL_RESET | R852_CTL_ON); in r852_engine_enable()
542 r852_write_reg(dev, R852_CTL, 0); in r852_engine_enable()
550 static void r852_engine_disable(struct r852_device *dev) in r852_engine_disable() argument
552 r852_write_reg_dword(dev, R852_HW, 0); in r852_engine_disable()
553 r852_write_reg(dev, R852_CTL, R852_CTL_RESET); in r852_engine_disable()
560 static void r852_card_update_present(struct r852_device *dev) in r852_card_update_present() argument
565 spin_lock_irqsave(&dev->irqlock, flags); in r852_card_update_present()
566 reg = r852_read_reg(dev, R852_CARD_STA); in r852_card_update_present()
567 dev->card_detected = !!(reg & R852_CARD_STA_PRESENT); in r852_card_update_present()
568 spin_unlock_irqrestore(&dev->irqlock, flags); in r852_card_update_present()
575 static void r852_update_card_detect(struct r852_device *dev) in r852_update_card_detect() argument
577 int card_detect_reg = r852_read_reg(dev, R852_CARD_IRQ_ENABLE); in r852_update_card_detect()
578 dev->card_unstable = 0; in r852_update_card_detect()
583 card_detect_reg |= dev->card_detected ? in r852_update_card_detect()
586 r852_write_reg(dev, R852_CARD_IRQ_ENABLE, card_detect_reg); in r852_update_card_detect()
592 struct mtd_info *mtd = container_of(sys_dev, struct mtd_info, dev); in media_type_show()
593 struct r852_device *dev = r852_get_dev(mtd); in media_type_show() local
594 char *data = dev->sm ? "smartmedia" : "xd"; in media_type_show()
603 static void r852_update_media_status(struct r852_device *dev) in r852_update_media_status() argument
609 spin_lock_irqsave(&dev->irqlock, flags); in r852_update_media_status()
610 if (!dev->card_detected) { in r852_update_media_status()
612 spin_unlock_irqrestore(&dev->irqlock, flags); in r852_update_media_status()
616 readonly = r852_read_reg(dev, R852_CARD_STA) & R852_CARD_STA_RO; in r852_update_media_status()
617 reg = r852_read_reg(dev, R852_DMA_CAP); in r852_update_media_status()
618 dev->sm = (reg & (R852_DMA1 | R852_DMA2)) && (reg & R852_SMBIT); in r852_update_media_status()
621 dev->sm ? "SmartMedia" : "xD", in r852_update_media_status()
624 dev->readonly = readonly; in r852_update_media_status()
625 spin_unlock_irqrestore(&dev->irqlock, flags); in r852_update_media_status()
632 static int r852_register_nand_device(struct r852_device *dev) in r852_register_nand_device() argument
634 struct mtd_info *mtd = nand_to_mtd(dev->chip); in r852_register_nand_device()
636 WARN_ON(dev->card_registered); in r852_register_nand_device()
638 mtd->dev.parent = &dev->pci_dev->dev; in r852_register_nand_device()
640 if (dev->readonly) in r852_register_nand_device()
641 dev->chip->options |= NAND_ROM; in r852_register_nand_device()
643 r852_engine_enable(dev); in r852_register_nand_device()
645 if (sm_register_device(mtd, dev->sm)) in r852_register_nand_device()
648 if (device_create_file(&mtd->dev, &dev_attr_media_type)) { in r852_register_nand_device()
653 dev->card_registered = 1; in r852_register_nand_device()
656 WARN_ON(mtd_device_unregister(nand_to_mtd(dev->chip))); in r852_register_nand_device()
657 nand_cleanup(dev->chip); in r852_register_nand_device()
660 dev->card_detected = 0; in r852_register_nand_device()
668 static void r852_unregister_nand_device(struct r852_device *dev) in r852_unregister_nand_device() argument
670 struct mtd_info *mtd = nand_to_mtd(dev->chip); in r852_unregister_nand_device()
672 if (!dev->card_registered) in r852_unregister_nand_device()
675 device_remove_file(&mtd->dev, &dev_attr_media_type); in r852_unregister_nand_device()
677 nand_cleanup(dev->chip); in r852_unregister_nand_device()
678 r852_engine_disable(dev); in r852_unregister_nand_device()
679 dev->card_registered = 0; in r852_unregister_nand_device()
685 struct r852_device *dev = in r852_card_detect_work() local
688 r852_card_update_present(dev); in r852_card_detect_work()
689 r852_update_card_detect(dev); in r852_card_detect_work()
690 dev->card_unstable = 0; in r852_card_detect_work()
693 if (dev->card_detected == dev->card_registered) in r852_card_detect_work()
697 r852_update_media_status(dev); in r852_card_detect_work()
700 if (dev->card_detected) in r852_card_detect_work()
701 r852_register_nand_device(dev); in r852_card_detect_work()
703 r852_unregister_nand_device(dev); in r852_card_detect_work()
705 r852_update_card_detect(dev); in r852_card_detect_work()
709 static void r852_disable_irqs(struct r852_device *dev) in r852_disable_irqs() argument
712 reg = r852_read_reg(dev, R852_CARD_IRQ_ENABLE); in r852_disable_irqs()
713 r852_write_reg(dev, R852_CARD_IRQ_ENABLE, reg & ~R852_CARD_IRQ_MASK); in r852_disable_irqs()
715 reg = r852_read_reg_dword(dev, R852_DMA_IRQ_ENABLE); in r852_disable_irqs()
716 r852_write_reg_dword(dev, R852_DMA_IRQ_ENABLE, in r852_disable_irqs()
719 r852_write_reg(dev, R852_CARD_IRQ_STA, R852_CARD_IRQ_MASK); in r852_disable_irqs()
720 r852_write_reg_dword(dev, R852_DMA_IRQ_STA, R852_DMA_IRQ_MASK); in r852_disable_irqs()
726 struct r852_device *dev = (struct r852_device *)data; in r852_irq() local
731 spin_lock(&dev->irqlock); in r852_irq()
734 card_status = r852_read_reg(dev, R852_CARD_IRQ_STA); in r852_irq()
735 r852_write_reg(dev, R852_CARD_IRQ_STA, card_status); in r852_irq()
740 dev->card_detected = !!(card_status & R852_CARD_IRQ_INSERT); in r852_irq()
744 WARN_ON(dev->card_unstable); in r852_irq()
748 r852_disable_irqs(dev); in r852_irq()
750 if (dev->card_unstable) in r852_irq()
754 dev->card_unstable = 1; in r852_irq()
755 queue_delayed_work(dev->card_workqueue, in r852_irq()
756 &dev->card_detect_work, msecs_to_jiffies(100)); in r852_irq()
762 dma_status = r852_read_reg_dword(dev, R852_DMA_IRQ_STA); in r852_irq()
763 r852_write_reg_dword(dev, R852_DMA_IRQ_STA, dma_status); in r852_irq()
771 r852_dma_done(dev, -EIO); in r852_irq()
772 complete(&dev->dma_done); in r852_irq()
777 WARN_ON_ONCE(dev->dma_stage == 0); in r852_irq()
779 if (dev->dma_stage == 0) in r852_irq()
783 if (dev->dma_state == DMA_INTERNAL && in r852_irq()
786 dev->dma_state = DMA_MEMORY; in r852_irq()
787 dev->dma_stage++; in r852_irq()
791 if (dev->dma_state == DMA_MEMORY && in r852_irq()
793 dev->dma_state = DMA_INTERNAL; in r852_irq()
794 dev->dma_stage++; in r852_irq()
798 if (dev->dma_stage == 2) in r852_irq()
799 r852_dma_enable(dev); in r852_irq()
802 if (dev->dma_stage == 3) { in r852_irq()
803 r852_dma_done(dev, 0); in r852_irq()
804 complete(&dev->dma_done); in r852_irq()
817 spin_unlock(&dev->irqlock); in r852_irq()
848 struct r852_device *dev; in r852_probe() local
858 error = dma_set_mask(&pci_dev->dev, DMA_BIT_MASK(32)); in r852_probe()
886 dev = kzalloc(sizeof(struct r852_device), GFP_KERNEL); in r852_probe()
888 if (!dev) in r852_probe()
891 nand_set_controller_data(chip, dev); in r852_probe()
892 dev->chip = chip; in r852_probe()
893 dev->pci_dev = pci_dev; in r852_probe()
894 pci_set_drvdata(pci_dev, dev); in r852_probe()
896 nand_controller_init(&dev->controller); in r852_probe()
897 dev->controller.ops = &r852_ops; in r852_probe()
898 chip->controller = &dev->controller; in r852_probe()
900 dev->bounce_buffer = dma_alloc_coherent(&pci_dev->dev, R852_DMA_LEN, in r852_probe()
901 &dev->phys_bounce_buffer, GFP_KERNEL); in r852_probe()
903 if (!dev->bounce_buffer) in r852_probe()
908 dev->mmio = pci_ioremap_bar(pci_dev, 0); in r852_probe()
910 if (!dev->mmio) in r852_probe()
914 dev->tmp_buffer = kzalloc(SM_SECTOR_SIZE, GFP_KERNEL); in r852_probe()
916 if (!dev->tmp_buffer) in r852_probe()
919 init_completion(&dev->dma_done); in r852_probe()
921 dev->card_workqueue = create_freezable_workqueue(DRV_NAME); in r852_probe()
923 if (!dev->card_workqueue) in r852_probe()
926 INIT_DELAYED_WORK(&dev->card_detect_work, r852_card_detect_work); in r852_probe()
929 r852_engine_disable(dev); in r852_probe()
930 r852_disable_irqs(dev); in r852_probe()
932 r852_dma_test(dev); in r852_probe()
934 dev->irq = pci_dev->irq; in r852_probe()
935 spin_lock_init(&dev->irqlock); in r852_probe()
937 dev->card_detected = 0; in r852_probe()
938 r852_card_update_present(dev); in r852_probe()
943 DRV_NAME, dev)) in r852_probe()
947 queue_delayed_work(dev->card_workqueue, in r852_probe()
948 &dev->card_detect_work, 0); in r852_probe()
955 destroy_workqueue(dev->card_workqueue); in r852_probe()
957 kfree(dev->tmp_buffer); in r852_probe()
959 pci_iounmap(pci_dev, dev->mmio); in r852_probe()
961 dma_free_coherent(&pci_dev->dev, R852_DMA_LEN, dev->bounce_buffer, in r852_probe()
962 dev->phys_bounce_buffer); in r852_probe()
964 kfree(dev); in r852_probe()
978 struct r852_device *dev = pci_get_drvdata(pci_dev); in r852_remove() local
982 cancel_delayed_work_sync(&dev->card_detect_work); in r852_remove()
983 destroy_workqueue(dev->card_workqueue); in r852_remove()
986 r852_unregister_nand_device(dev); in r852_remove()
989 r852_disable_irqs(dev); in r852_remove()
990 free_irq(dev->irq, dev); in r852_remove()
993 kfree(dev->tmp_buffer); in r852_remove()
994 pci_iounmap(pci_dev, dev->mmio); in r852_remove()
995 dma_free_coherent(&pci_dev->dev, R852_DMA_LEN, dev->bounce_buffer, in r852_remove()
996 dev->phys_bounce_buffer); in r852_remove()
998 kfree(dev->chip); in r852_remove()
999 kfree(dev); in r852_remove()
1008 struct r852_device *dev = pci_get_drvdata(pci_dev); in r852_shutdown() local
1010 cancel_delayed_work_sync(&dev->card_detect_work); in r852_shutdown()
1011 r852_disable_irqs(dev); in r852_shutdown()
1012 synchronize_irq(dev->irq); in r852_shutdown()
1019 struct r852_device *dev = dev_get_drvdata(device); in r852_suspend() local
1021 if (dev->ctlreg & R852_CTL_CARDENABLE) in r852_suspend()
1025 cancel_delayed_work_sync(&dev->card_detect_work); in r852_suspend()
1028 r852_disable_irqs(dev); in r852_suspend()
1029 r852_engine_disable(dev); in r852_suspend()
1034 dev->card_unstable = 0; in r852_suspend()
1040 struct r852_device *dev = dev_get_drvdata(device); in r852_resume() local
1042 r852_disable_irqs(dev); in r852_resume()
1043 r852_card_update_present(dev); in r852_resume()
1044 r852_engine_disable(dev); in r852_resume()
1048 if (dev->card_detected != dev->card_registered) { in r852_resume()
1050 dev->card_detected ? "added" : "removed"); in r852_resume()
1052 queue_delayed_work(dev->card_workqueue, in r852_resume()
1053 &dev->card_detect_work, msecs_to_jiffies(1000)); in r852_resume()
1058 if (dev->card_registered) { in r852_resume()
1059 r852_engine_enable(dev); in r852_resume()
1060 nand_select_target(dev->chip, 0); in r852_resume()
1061 nand_reset_op(dev->chip); in r852_resume()
1062 nand_deselect_target(dev->chip); in r852_resume()
1066 r852_update_card_detect(dev); in r852_resume()