/* * c67x00-drv.c: Cypress C67X00 USB Common infrastructure * * Copyright (C) 2006-2008 Barco N.V. * Derived from the Cypress cy7c67200/300 ezusb linux driver and * based on multiple host controller drivers inside the linux kernel. * * 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 * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, * MA 02110-1301 USA. */ /* * This file implements the common infrastructure for using the c67x00. * It is both the link between the platform configuration and subdrivers and * the link between the common hardware parts and the subdrivers (e.g. * interrupt handling). * * The c67x00 has 2 SIE's (serial interface engine) which can be configured * to be host, device or OTG (with some limitations, E.G. only SIE1 can be OTG). * * Depending on the platform configuration, the SIE's are created and * the corresponding subdriver is initialized (c67x00_probe_sie). */ #include #include #include #include #include #include #include #include "c67x00.h" #include "c67x00-hcd.h" static void c67x00_probe_sie(struct c67x00_sie *sie, struct c67x00_device *dev, int sie_num) { spin_lock_init(&sie->lock); sie->dev = dev; sie->sie_num = sie_num; sie->mode = c67x00_sie_config(dev->pdata->sie_config, sie_num); switch (sie->mode) { case C67X00_SIE_HOST: c67x00_hcd_probe(sie); break; case C67X00_SIE_UNUSED: dev_info(sie_dev(sie), "Not using SIE %d as requested\n", sie->sie_num); break; default: dev_err(sie_dev(sie), "Unsupported configuration: 0x%x for SIE %d\n", sie->mode, sie->sie_num); break; } } static void c67x00_remove_sie(struct c67x00_sie *sie) { switch (sie->mode) { case C67X00_SIE_HOST: c67x00_hcd_remove(sie); break; default: break; } } static irqreturn_t c67x00_irq(int irq, void *__dev) { struct c67x00_device *c67x00 = __dev; struct c67x00_sie *sie; u16 msg, int_status; int i, count = 8; int_status = c67x00_ll_hpi_status(c67x00); if (!int_status) return IRQ_NONE; while (int_status != 0 && (count-- >= 0)) { c67x00_ll_irq(c67x00, int_status); for (i = 0; i < C67X00_SIES; i++) { sie = &c67x00->sie[i]; msg = 0; if (int_status & SIEMSG_FLG(i)) msg = c67x00_ll_fetch_siemsg(c67x00, i); if (sie->irq) sie->irq(sie, int_status, msg); } int_status = c67x00_ll_hpi_status(c67x00); } if (int_status) dev_warn(&c67x00->pdev->dev, "Not all interrupts handled! " "status = 0x%04x\n", int_status); return IRQ_HANDLED; } /* ------------------------------------------------------------------------- */ static int c67x00_drv_probe(struct platform_device *pdev) { struct c67x00_device *c67x00; struct c67x00_platform_data *pdata; struct resource *res, *res2; int ret, i; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) return -ENODEV; res2 = platform_get_resource(pdev, IORESOURCE_IRQ, 0); if (!res2) return -ENODEV; pdata = dev_get_platdata(&pdev->dev); if (!pdata) return -ENODEV; c67x00 = kzalloc(sizeof(*c67x00), GFP_KERNEL); if (!c67x00) return -ENOMEM; if (!request_mem_region(res->start, resource_size(res), pdev->name)) { dev_err(&pdev->dev, "Memory region busy\n"); ret = -EBUSY; goto request_mem_failed; } c67x00->hpi.base = ioremap(res->start, resource_size(res)); if (!c67x00->hpi.base) { dev_err(&pdev->dev, "Unable to map HPI registers\n"); ret = -EIO; goto map_failed; } spin_lock_init(&c67x00->hpi.lock); c67x00->hpi.regstep = pdata->hpi_regstep; c67x00->pdata = dev_get_platdata(&pdev->dev); c67x00->pdev = pdev; c67x00_ll_init(c67x00); c67x00_ll_hpi_reg_init(c67x00); ret = request_irq(res2->start, c67x00_irq, 0, pdev->name, c67x00); if (ret) { dev_err(&pdev->dev, "Cannot claim IRQ\n"); goto request_irq_failed; } ret = c67x00_ll_reset(c67x00); if (ret) { dev_err(&pdev->dev, "Device reset failed\n"); goto reset_failed; } for (i = 0; i < C67X00_SIES; i++) c67x00_probe_sie(&c67x00->sie[i], c67x00, i); platform_set_drvdata(pdev, c67x00); return 0; reset_failed: free_irq(res2->start, c67x00); request_irq_failed: iounmap(c67x00->hpi.base); map_failed: release_mem_region(res->start, resource_size(res)); request_mem_failed: kfree(c67x00); return ret; } static int c67x00_drv_remove(struct platform_device *pdev) { struct c67x00_device *c67x00 = platform_get_drvdata(pdev); struct resource *res; int i; for (i = 0; i < C67X00_SIES; i++) c67x00_remove_sie(&c67x00->sie[i]); c67x00_ll_release(c67x00); res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); if (res) free_irq(res->start, c67x00); iounmap(c67x00->hpi.base); res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (res) release_mem_region(res->start, resource_size(res)); kfree(c67x00); return 0; } static struct platform_driver c67x00_driver = { .probe = c67x00_drv_probe, .remove = c67x00_drv_remove, .driver = { .name = "c67x00", }, }; module_platform_driver(c67x00_driver); MODULE_AUTHOR("Peter Korsgaard, Jan Veldeman, Grant Likely"); MODULE_DESCRIPTION("Cypress C67X00 USB Controller Driver"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:c67x00"); tr> parent3365135d43f861003555c963b309672d053a2228 (diff)parent950eabbd6ddedc1b08350b9169a6a51b130ebaaf (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller: 1) GTP fixes from Andreas Schultz (missing genl module alias, clear IP DF on transmit). 2) Netfilter needs to reflect the fwmark when sending resets, from Pau Espin Pedrol. 3) nftable dump OOPS fix from Liping Zhang. 4) Fix erroneous setting of VIRTIO_NET_HDR_F_DATA_VALID on transmit, from Rolf Neugebauer. 5) Fix build error of ipt_CLUSTERIP when procfs is disabled, from Arnd Bergmann. 6) Fix regression in handling of NETIF_F_SG in harmonize_features(), from Eric Dumazet. 7) Fix RTNL deadlock wrt. lwtunnel module loading, from David Ahern. 8) tcp_fastopen_create_child() needs to setup tp->max_window, from Alexey Kodanev. 9) Missing kmemdup() failure check in ipv6 segment routing code, from Eric Dumazet. 10) Don't execute unix_bind() under the bindlock, otherwise we deadlock with splice. From WANG Cong. 11) ip6_tnl_parse_tlv_enc_lim() potentially reallocates the skb buffer, therefore callers must reload cached header pointers into that skb. Fix from Eric Dumazet. 12) Fix various bugs in legacy IRQ fallback handling in alx driver, from Tobias Regnery. 13) Do not allow lwtunnel drivers to be unloaded while they are referenced by active instances, from Robert Shearman. 14) Fix truncated PHY LED trigger names, from Geert Uytterhoeven. 15) Fix a few regressions from virtio_net XDP support, from John Fastabend and Jakub Kicinski. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (102 commits) ISDN: eicon: silence misleading array-bounds warning net: phy: micrel: add support for KSZ8795 gtp: fix cross netns recv on gtp socket gtp: clear DF bit on GTP packet tx gtp: add genl family modules alias tcp: don't annotate mark on control socket from tcp_v6_send_response() ravb: unmap descriptors when freeing rings virtio_net: reject XDP programs using header adjustment virtio_net: use dev_kfree_skb for small buffer XDP receive r8152: check rx after napi is enabled r8152: re-schedule napi for tx r8152: avoid start_xmit to schedule napi when napi is disabled r8152: avoid start_xmit to call napi_schedule during autosuspend net: dsa: Bring back device detaching in dsa_slave_suspend() net: phy: leds: Fix truncated LED trigger names net: phy: leds: Break dependency of phy.h on phy_led_triggers.h net: phy: leds: Clear phy_num_led_triggers on failure to avoid crash net-next: ethernet: mediatek: change the compatible string Documentation: devicetree: change the mediatek ethernet compatible string bnxt_en: Fix RTNL lock usage on bnxt_get_port_module_status(). ...
Diffstat (limited to 'sound/usb/card.h')