[PATCH] Remove amdtp, cmp drivers. Remove the Audio and Music Data Transmission Protocol driver and the Connection Management Procedures driver. These are incomplete, have never worked, and are better implemented in userland via raw1394 (see http://freebob.sourceforge.net/ for example.) Signed-off-by: Jody McIntyre Cc: Adrian Bunk Index: linux/Documentation/feature-removal-schedule.txt =================================================================== --- linux.orig/Documentation/feature-removal-schedule.txt +++ linux/Documentation/feature-removal-schedule.txt @@ -40,17 +40,6 @@ Who: Paul E. McKenney - ---------------------------- - What: raw1394: requests of type RAW1394_REQ_ISO_SEND, RAW1394_REQ_ISO_LISTEN When: November 2005 Why: Deprecated in favour of the new ioctl-based rawiso interface, which is Index: linux/drivers/ieee1394/Kconfig =================================================================== --- linux.orig/drivers/ieee1394/Kconfig +++ linux/drivers/ieee1394/Kconfig @@ -169,27 +169,4 @@ config IEEE1394_RAWIO To compile this driver as a module, say M here: the module will be called raw1394. -config IEEE1394_CMP - tristate "IEC61883-1 Plug support" - depends on IEEE1394 - help - This option enables the Connection Management Procedures - (IEC61883-1) driver, which implements input and output plugs. - - To compile this driver as a module, say M here: the - module will be called cmp. - -config IEEE1394_AMDTP - tristate "IEC61883-6 (Audio transmission) support" - depends on IEEE1394 && IEEE1394_OHCI1394 && IEEE1394_CMP - help - This option enables the Audio & Music Data Transmission Protocol - (IEC61883-6) driver, which implements audio transmission over - IEEE1394. - - The userspace interface is documented in amdtp.h. - - To compile this driver as a module, say M here: the - module will be called amdtp. - endmenu Index: linux/drivers/ieee1394/amdtp.c =================================================================== --- linux.orig/drivers/ieee1394/amdtp.c +++ /dev/null @@ -1,1299 +0,0 @@ -/* -*- c-basic-offset: 8 -*- - * - * amdtp.c - Audio and Music Data Transmission Protocol Driver - * Copyright (C) 2001 Kristian Høgsberg - * - * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - */ - -/* OVERVIEW - * -------- - * - * The AMDTP driver is designed to expose the IEEE1394 bus as a - * regular OSS soundcard, i.e. you can link /dev/dsp to /dev/amdtp and - * then your favourite MP3 player, game or whatever sound program will - * output to an IEEE1394 isochronous channel. The signal destination - * could be a set of IEEE1394 loudspeakers (if and when such things - * become available) or an amplifier with IEEE1394 input (like the - * Sony STR-LSA1). The driver only handles the actual streaming, some - * connection management is also required for this to actually work. - * That is outside the scope of this driver, and furthermore it is not - * really standardized yet. - * - * The Audio and Music Data Tranmission Protocol is available at - * - * http://www.1394ta.org/Download/Technology/Specifications/2001/AM20Final-jf2.pdf - * - * - * TODO - * ---- - * - * - We should be able to change input sample format between LE/BE, as - * we already shift the bytes around when we construct the iso - * packets. - * - * - Fix DMA stop after bus reset! - * - * - Clean up iso context handling in ohci1394. - * - * - * MAYBE TODO - * ---------- - * - * - Receive data for local playback or recording. Playback requires - * soft syncing with the sound card. - * - * - Signal processing, i.e. receive packets, do some processing, and - * transmit them again using the same packet structure and timestamps - * offset by processing time. - * - * - Maybe make an ALSA interface, that is, create a file_ops - * implementation that recognizes ALSA ioctls and uses defaults for - * things that can't be controlled through ALSA (iso channel). - * - * Changes: - * - * - Audit copy_from_user in amdtp_write. - * Daniele Bellucci - * - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "hosts.h" -#include "highlevel.h" -#include "ieee1394.h" -#include "ieee1394_core.h" -#include "ohci1394.h" - -#include "amdtp.h" -#include "cmp.h" - -#define FMT_AMDTP 0x10 -#define FDF_AM824 0x00 -#define FDF_SFC_32KHZ 0x00 -#define FDF_SFC_44K1HZ 0x01 -#define FDF_SFC_48KHZ 0x02 -#define FDF_SFC_88K2HZ 0x03 -#define FDF_SFC_96KHZ 0x04 -#define FDF_SFC_176K4HZ 0x05 -#define FDF_SFC_192KHZ 0x06 - -struct descriptor_block { - struct output_more_immediate { - u32 control; - u32 pad0; - u32 skip; - u32 pad1; - u32 header[4]; - } header_desc; - - struct output_last { - u32 control; - u32 data_address; - u32 branch; - u32 status; - } payload_desc; -}; - -struct packet { - struct descriptor_block *db; - dma_addr_t db_bus; - struct iso_packet *payload; - dma_addr_t payload_bus; -}; - -#include - -#if defined __BIG_ENDIAN_BITFIELD - -struct iso_packet { - /* First quadlet */ - unsigned int dbs : 8; - unsigned int eoh0 : 2; - unsigned int sid : 6; - - unsigned int dbc : 8; - unsigned int fn : 2; - unsigned int qpc : 3; - unsigned int sph : 1; - unsigned int reserved : 2; - - /* Second quadlet */ - unsigned int fdf : 8; - unsigned int eoh1 : 2; - unsigned int fmt : 6; - - unsigned int syt : 16; - - quadlet_t data[0]; -}; - -#elif defined __LITTLE_ENDIAN_BITFIELD - -struct iso_packet { - /* First quadlet */ - unsigned int sid : 6; - unsigned int eoh0 : 2; - unsigned int dbs : 8; - - unsigned int reserved : 2; - unsigned int sph : 1; - unsigned int qpc : 3; - unsigned int fn : 2; - unsigned int dbc : 8; - - /* Second quadlet */ - unsigned int fmt : 6; - unsigned int eoh1 : 2; - unsigned int fdf : 8; - - unsigned int syt : 16; - - quadlet_t data[0]; -}; - -#else - -#error Unknown bitfield type - -#endif - -struct fraction { - int integer; - int numerator; - int denominator; -}; - -#define PACKET_LIST_SIZE 256 -#define MAX_PACKET_LISTS 4 - -struct packet_list { - struct list_head link; - int last_cycle_count; - struct packet packets[PACKET_LIST_SIZE]; -}; - -#define BUFFER_SIZE 128 - -/* This implements a circular buffer for incoming samples. */ - -struct buffer { - size_t head, tail, length, size; - unsigned char data[0]; -}; - -struct stream { - int iso_channel; - int format; - int rate; - int dimension; - int fdf; - int mode; - int sample_format; - struct cmp_pcr *opcr; - - /* Input samples are copied here. */ - struct buffer *input; - - /* ISO Packer state */ - unsigned char dbc; - struct packet_list *current_packet_list; - int current_packet; - struct fraction ready_samples, samples_per_cycle; - - /* We use these to generate control bits when we are packing - * iec958 data. - */ - int iec958_frame_count; - int iec958_rate_code; - - /* The cycle_count and cycle_offset fields are used for the - * synchronization timestamps (syt) in the cip header. They - * are incremented by at least a cycle every time we put a - * time stamp in a packet. As we don't time stamp all - * packages, cycle_count isn't updated in every cycle, and - * sometimes it's incremented by 2. Thus, we have - * cycle_count2, which is simply incremented by one with each - * packet, so we can compare it to the transmission time - * written back in the dma programs. - */ - atomic_t cycle_count, cycle_count2; - struct fraction cycle_offset, ticks_per_syt_offset; - int syt_interval; - int stale_count; - - /* Theses fields control the sample output to the DMA engine. - * The dma_packet_lists list holds packet lists currently - * queued for dma; the head of the list is currently being - * processed. The last program in a packet list generates an - * interrupt, which removes the head from dma_packet_lists and - * puts it back on the free list. - */ - struct list_head dma_packet_lists; - struct list_head free_packet_lists; - wait_queue_head_t packet_list_wait; - spinlock_t packet_list_lock; - struct ohci1394_iso_tasklet iso_tasklet; - struct pci_pool *descriptor_pool, *packet_pool; - - /* Streams at a host controller are chained through this field. */ - struct list_head link; - struct amdtp_host *host; -}; - -struct amdtp_host { - struct hpsb_host *host; - struct ti_ohci *ohci; - struct list_head stream_list; - spinlock_t stream_list_lock; -}; - -static struct hpsb_highlevel amdtp_highlevel; - - -/* FIXME: This doesn't belong here... */ - -#define OHCI1394_CONTEXT_CYCLE_MATCH 0x80000000 -#define OHCI1394_CONTEXT_RUN 0x00008000 -#define OHCI1394_CONTEXT_WAKE 0x00001000 -#define OHCI1394_CONTEXT_DEAD 0x00000800 -#define OHCI1394_CONTEXT_ACTIVE 0x00000400 - -static void ohci1394_start_it_ctx(struct ti_ohci *ohci, int ctx, - dma_addr_t first_cmd, int z, int cycle_match) -{ - reg_write(ohci, OHCI1394_IsoXmitIntMaskSet, 1 << ctx); - reg_write(ohci, OHCI1394_IsoXmitCommandPtr + ctx * 16, first_cmd | z); - reg_write(ohci, OHCI1394_IsoXmitContextControlClear + ctx * 16, ~0); - wmb(); - reg_write(ohci, OHCI1394_IsoXmitContextControlSet + ctx * 16, - OHCI1394_CONTEXT_CYCLE_MATCH | (cycle_match << 16) | - OHCI1394_CONTEXT_RUN); -} - -static void ohci1394_wake_it_ctx(struct ti_ohci *ohci, int ctx) -{ - reg_write(ohci, OHCI1394_IsoXmitContextControlSet + ctx * 16, - OHCI1394_CONTEXT_WAKE); -} - -static void ohci1394_stop_it_ctx(struct ti_ohci *ohci, int ctx, int synchronous) -{ - u32 control; - int wait; - - reg_write(ohci, OHCI1394_IsoXmitIntMaskClear, 1 << ctx); - reg_write(ohci, OHCI1394_IsoXmitContextControlClear + ctx * 16, - OHCI1394_CONTEXT_RUN); - wmb(); - - if (synchronous) { - for (wait = 0; wait < 5; wait++) { - control = reg_read(ohci, OHCI1394_IsoXmitContextControlSet + ctx * 16); - if ((control & OHCI1394_CONTEXT_ACTIVE) == 0) - break; - - set_current_state(TASK_INTERRUPTIBLE); - schedule_timeout(1); - } - } -} - -/* Note: we can test if free_packet_lists is empty without aquiring - * the packet_list_lock. The interrupt handler only adds to the free - * list, there is no race condition between testing the list non-empty - * and acquiring the lock. - */ - -static struct packet_list *stream_get_free_packet_list(struct stream *s) -{ - struct packet_list *pl; - unsigned long flags; - - if (list_empty(&s->free_packet_lists)) - return NULL; - - spin_lock_irqsave(&s->packet_list_lock, flags); - pl = list_entry(s->free_packet_lists.next, struct packet_list, link); - list_del(&pl->link); - spin_unlock_irqrestore(&s->packet_list_lock, flags); - - return pl; -} - -static void stream_start_dma(struct stream *s, struct packet_list *pl) -{ - u32 syt_cycle, cycle_count, start_cycle; - - cycle_count = reg_read(s->host->ohci, - OHCI1394_IsochronousCycleTimer) >> 12; - syt_cycle = (pl->last_cycle_count - PACKET_LIST_SIZE + 1) & 0x0f; - - /* We program the DMA controller to start transmission at - * least 17 cycles from now - this happens when the lower four - * bits of cycle_count is 0x0f and syt_cycle is 0, in this - * case the start cycle is cycle_count - 15 + 32. */ - start_cycle = (cycle_count & ~0x0f) + 32 + syt_cycle; - if ((start_cycle & 0x1fff) >= 8000) - start_cycle = start_cycle - 8000 + 0x2000; - - ohci1394_start_it_ctx(s->host->ohci, s->iso_tasklet.context, - pl->packets[0].db_bus, 3, - start_cycle & 0x7fff); -} - -static void stream_put_dma_packet_list(struct stream *s, - struct packet_list *pl) -{ - unsigned long flags; - struct packet_list *prev; - - /* Remember the cycle_count used for timestamping the last packet. */ - pl->last_cycle_count = atomic_read(&s->cycle_count2) - 1; - pl->packets[PACKET_LIST_SIZE - 1].db->payload_desc.branch = 0; - - spin_lock_irqsave(&s->packet_list_lock, flags); - list_add_tail(&pl->link, &s->dma_packet_lists); - spin_unlock_irqrestore(&s->packet_list_lock, flags); - - prev = list_entry(pl->link.prev, struct packet_list, link); - if (pl->link.prev != &s->dma_packet_lists) { - struct packet *last = &prev->packets[PACKET_LIST_SIZE - 1]; - last->db->payload_desc.branch = pl->packets[0].db_bus | 3; - last->db->header_desc.skip = pl->packets[0].db_bus | 3; - ohci1394_wake_it_ctx(s->host->ohci, s->iso_tasklet.context); - } - else - stream_start_dma(s, pl); -} - -static void stream_shift_packet_lists(unsigned long l) -{ - struct stream *s = (struct stream *) l; - struct packet_list *pl; - struct packet *last; - int diff; - - if (list_empty(&s->dma_packet_lists)) { - HPSB_ERR("empty dma_packet_lists in %s", __FUNCTION__); - return; - } - - /* Now that we know the list is non-empty, we can get the head - * of the list without locking, because the process context - * only adds to the tail. - */ - pl = list_entry(s->dma_packet_lists.next, struct packet_list, link); - last = &pl->packets[PACKET_LIST_SIZE - 1]; - - /* This is weird... if we stop dma processing in the middle of - * a packet list, the dma context immediately generates an - * interrupt if we enable it again later. This only happens - * when amdtp_release is interrupted while waiting for dma to - * complete, though. Anyway, we detect this by seeing that - * the status of the dma descriptor that we expected an - * interrupt from is still 0. - */ - if (last->db->payload_desc.status == 0) { - HPSB_INFO("weird interrupt..."); - return; - } - - /* If the last descriptor block does not specify a branch - * address, we have a sample underflow. - */ - if (last->db->payload_desc.branch == 0) - HPSB_INFO("FIXME: sample underflow..."); - - /* Here we check when (which cycle) the last packet was sent - * and compare it to what the iso packer was using at the - * time. If there is a mismatch, we adjust the cycle count in - * the iso packer. However, there are still up to - * MAX_PACKET_LISTS packet lists queued with bad time stamps, - * so we disable time stamp monitoring for the next - * MAX_PACKET_LISTS packet lists. - */ - diff = (last->db->payload_desc.status - pl->last_cycle_count) & 0xf; - if (diff > 0 && s->stale_count == 0) { - atomic_add(diff, &s->cycle_count); - atomic_add(diff, &s->cycle_count2); - s->stale_count = MAX_PACKET_LISTS; - } - - if (s->stale_count > 0) - s->stale_count--; - - /* Finally, we move the packet list that was just processed - * back to the free list, and notify any waiters. - */ - spin_lock(&s->packet_list_lock); - list_del(&pl->link); - list_add_tail(&pl->link, &s->free_packet_lists); - spin_unlock(&s->packet_list_lock); - - wake_up_interruptible(&s->packet_list_wait); -} - -static struct packet *stream_current_packet(struct stream *s) -{ - if (s->current_packet_list == NULL && - (s->current_packet_list = stream_get_free_packet_list(s)) == NULL) - return NULL; - - return &s->current_packet_list->packets[s->current_packet]; -} - -static void stream_queue_packet(struct stream *s) -{ - s->current_packet++; - if (s->current_packet == PACKET_LIST_SIZE) { - stream_put_dma_packet_list(s, s->current_packet_list); - s->current_packet_list = NULL; - s->current_packet = 0; - } -} - -/* Integer fractional math. When we transmit a 44k1Hz signal we must - * send 5 41/80 samples per isochronous cycle, as these occur 8000 - * times a second. Of course, we must send an integral number of - * samples in a packet, so we use the integer math to alternate - * between sending 5 and 6 samples per packet. - */ - -static void fraction_init(struct fraction *f, int numerator, int denominator) -{ - f->integer = numerator / denominator; - f->numerator = numerator % denominator; - f->denominator = denominator; -} - -static __inline__ void fraction_add(struct fraction *dst, - struct fraction *src1, - struct fraction *src2) -{ - /* assert: src1->denominator == src2->denominator */ - - int sum, denom; - - /* We use these two local variables to allow gcc to optimize - * the division and the modulo into only one division. */ - - sum = src1->numerator + src2->numerator; - denom = src1->denominator; - dst->integer = src1->integer + src2->integer + sum / denom; - dst->numerator = sum % denom; - dst->denominator = denom; -} - -static __inline__ void fraction_sub_int(struct fraction *dst, - struct fraction *src, int integer) -{ - dst->integer = src->integer - integer; - dst->numerator = src->numerator; - dst->denominator = src->denominator; -} - -static __inline__ int fraction_floor(struct fraction *frac) -{ - return frac->integer; -} - -static __inline__ int fraction_ceil(struct fraction *frac) -{ - return frac->integer + (frac->numerator > 0 ? 1 : 0); -} - -static void packet_initialize(struct packet *p, struct packet *next) -{ - /* Here we initialize the dma descriptor block for - * transferring one iso packet. We use two descriptors per - * packet: an OUTPUT_MORE_IMMMEDIATE descriptor for the - * IEEE1394 iso packet header and an OUTPUT_LAST descriptor - * for the payload. - */ - - p->db->header_desc.control = - DMA_CTL_OUTPUT_MORE | DMA_CTL_IMMEDIATE | 8; - - if (next) { - p->db->payload_desc.control = - DMA_CTL_OUTPUT_LAST | DMA_CTL_BRANCH; - p->db->payload_desc.branch = next->db_bus | 3; - p->db->header_desc.skip = next->db_bus | 3; - } - else { - p->db->payload_desc.control = - DMA_CTL_OUTPUT_LAST | DMA_CTL_BRANCH | - DMA_CTL_UPDATE | DMA_CTL_IRQ; - p->db->payload_desc.branch = 0; - p->db->header_desc.skip = 0; - } - p->db->payload_desc.data_address = p->payload_bus; - p->db->payload_desc.status = 0; -} - -static struct packet_list *packet_list_alloc(struct stream *s) -{ - int i; - struct packet_list *pl; - struct packet *next; - - pl = kmalloc(sizeof *pl, SLAB_KERNEL); - if (pl == NULL) - return NULL; - - for (i = 0; i < PACKET_LIST_SIZE; i++) { - struct packet *p = &pl->packets[i]; - p->db = pci_pool_alloc(s->descriptor_pool, SLAB_KERNEL, - &p->db_bus); - p->payload = pci_pool_alloc(s->packet_pool, SLAB_KERNEL, - &p->payload_bus); - } - - for (i = 0; i < PACKET_LIST_SIZE; i++) { - if (i < PACKET_LIST_SIZE - 1) - next = &pl->packets[i + 1]; - else - next = NULL; - packet_initialize(&pl->packets[i], next); - } - - return pl; -} - -static void packet_list_free(struct packet_list *pl, struct stream *s) -{ - int i; - - for (i = 0; i < PACKET_LIST_SIZE; i++) { - struct packet *p = &pl->packets[i]; - pci_pool_free(s->descriptor_pool, p->db, p->db_bus); - pci_pool_free(s->packet_pool, p->payload, p->payload_bus); - } - kfree(pl); -} - -static struct buffer *buffer_alloc(int size) -{ - struct buffer *b; - - b = kmalloc(sizeof *b + size, SLAB_KERNEL); - if (b == NULL) - return NULL; - b->head = 0; - b->tail = 0; - b->length = 0; - b->size = size; - - return b; -} - -static unsigned char *buffer_get_bytes(struct buffer *buffer, int size) -{ - unsigned char *p; - - if (buffer->head + size > buffer->size) - BUG(); - - p = &buffer->data[buffer->head]; - buffer->head += size; - if (buffer->head == buffer->size) - buffer->head = 0; - buffer->length -= size; - - return p; -} - -static unsigned char *buffer_put_bytes(struct buffer *buffer, - size_t max, size_t *actual) -{ - size_t length; - unsigned char *p; - - p = &buffer->data[buffer->tail]; - length = min(buffer->size - buffer->length, max); - if (buffer->tail + length < buffer->size) { - *actual = length; - buffer->tail += length; - } - else { - *actual = buffer->size - buffer->tail; - buffer->tail = 0; - } - - buffer->length += *actual; - return p; -} - -static u32 get_iec958_header_bits(struct stream *s, int sub_frame, u32 sample) -{ - int csi, parity, shift; - int block_start; - u32 bits; - - switch (s->iec958_frame_count) { - case 1: - csi = s->format == AMDTP_FORMAT_IEC958_AC3; - break; - case 2: - case 9: - csi = 1; - break; - case 24 ... 27: - csi = (s->iec958_rate_code >> (27 - s->iec958_frame_count)) & 0x01; - break; - default: - csi = 0; - break; - } - - block_start = (s->iec958_frame_count == 0 && sub_frame == 0); - - /* The parity bit is the xor of the sample bits and the - * channel status info bit. */ - for (shift = 16, parity = sample ^ csi; shift > 0; shift >>= 1) - parity ^= (parity >> shift); - - bits = (block_start << 5) | /* Block start bit */ - ((sub_frame == 0) << 4) | /* Subframe bit */ - ((parity & 1) << 3) | /* Parity bit */ - (csi << 2); /* Channel status info bit */ - - return bits; -} - -static u32 get_header_bits(struct stream *s, int sub_frame, u32 sample) -{ - switch (s->format) { - case AMDTP_FORMAT_IEC958_PCM: - case AMDTP_FORMAT_IEC958_AC3: - return get_iec958_header_bits(s, sub_frame, sample); - - case AMDTP_FORMAT_RAW: - return 0x40; - - default: - return 0; - } -} - -static void fill_payload_le16(struct stream *s, quadlet_t *data, int nevents) -{ - quadlet_t *event, sample, bits; - unsigned char *p; - int i, j; - - for (i = 0, event = data; i < nevents; i++) { - - for (j = 0; j < s->dimension; j++) { - p = buffer_get_bytes(s->input, 2); - sample = (p[1] << 16) | (p[0] << 8); - bits = get_header_bits(s, j, sample); - event[j] = cpu_to_be32((bits << 24) | sample); - } - - event += s->dimension; - if (++s->iec958_frame_count == 192) - s->iec958_frame_count = 0; - } -} - -static void fill_packet(struct stream *s, struct packet *packet, int nevents) -{ - int syt_index, syt, size; - u32 control; - - size = (nevents * s->dimension + 2) * sizeof(quadlet_t); - - /* Update DMA descriptors */ - packet->db->payload_desc.status = 0; - control = packet->db->payload_desc.control & 0xffff0000; - packet->db->payload_desc.control = control | size; - - /* Fill IEEE1394 headers */ - packet->db->header_desc.header[0] = - (IEEE1394_SPEED_100 << 16) | (0x01 << 14) | - (s->iso_channel << 8) | (TCODE_ISO_DATA << 4); - packet->db->header_desc.header[1] = size << 16; - - /* Calculate synchronization timestamp (syt). First we - * determine syt_index, that is, the index in the packet of - * the sample for which the timestamp is valid. */ - syt_index = (s->syt_interval - s->dbc) & (s->syt_interval - 1); - if (syt_index < nevents) { - syt = ((atomic_read(&s->cycle_count) << 12) | - s->cycle_offset.integer) & 0xffff; - fraction_add(&s->cycle_offset, - &s->cycle_offset, &s->ticks_per_syt_offset); - - /* This next addition should be modulo 8000 (0x1f40), - * but we only use the lower 4 bits of cycle_count, so - * we don't need the modulo. */ - atomic_add(s->cycle_offset.integer / 3072, &s->cycle_count); - s->cycle_offset.integer %= 3072; - } - else - syt = 0xffff; - - atomic_inc(&s->cycle_count2); - - /* Fill cip header */ - packet->payload->eoh0 = 0; - packet->payload->sid = s->host->host->node_id & 0x3f; - packet->payload->dbs = s->dimension; - packet->payload->fn = 0; - packet->payload->qpc = 0; - packet->payload->sph = 0; - packet->payload->reserved = 0; - packet->payload->dbc = s->dbc; - packet->payload->eoh1 = 2; - packet->payload->fmt = FMT_AMDTP; - packet->payload->fdf = s->fdf; - packet->payload->syt = cpu_to_be16(syt); - - switch (s->sample_format) { - case AMDTP_INPUT_LE16: - fill_payload_le16(s, packet->payload->data, nevents); - break; - } - - s->dbc += nevents; -} - -static void stream_flush(struct stream *s) -{ - struct packet *p; - int nevents; - struct fraction next; - - /* The AMDTP specifies two transmission modes: blocking and - * non-blocking. In blocking mode you always transfer - * syt_interval or zero samples, whereas in non-blocking mode - * you send as many samples as you have available at transfer - * time. - * - * The fraction samples_per_cycle specifies the number of - * samples that become available per cycle. We add this to - * the fraction ready_samples, which specifies the number of - * leftover samples from the previous transmission. The sum, - * stored in the fraction next, specifies the number of - * samples available for transmission, and from this we - * determine the number of samples to actually transmit. - */ - - while (1) { - fraction_add(&next, &s->ready_samples, &s->samples_per_cycle); - if (s->mode == AMDTP_MODE_BLOCKING) { - if (fraction_floor(&next) >= s->syt_interval) - nevents = s->syt_interval; - else - nevents = 0; - } - else - nevents = fraction_floor(&next); - - p = stream_current_packet(s); - if (s->input->length < nevents * s->dimension * 2 || p == NULL) - break; - - fill_packet(s, p, nevents); - stream_queue_packet(s); - - /* Now that we have successfully queued the packet for - * transmission, we update the fraction ready_samples. */ - fraction_sub_int(&s->ready_samples, &next, nevents); - } -} - -static int stream_alloc_packet_lists(struct stream *s) -{ - int max_nevents, max_packet_size, i; - - if (s->mode == AMDTP_MODE_BLOCKING) - max_nevents = s->syt_interval; - else - max_nevents = fraction_ceil(&s->samples_per_cycle); - - max_packet_size = max_nevents * s->dimension * 4 + 8; - s->packet_pool = pci_pool_create("packet pool", s->host->ohci->dev, - max_packet_size, 0, 0); - - if (s->packet_pool == NULL) - return -1; - - INIT_LIST_HEAD(&s->free_packet_lists); - INIT_LIST_HEAD(&s->dma_packet_lists); - for (i = 0; i < MAX_PACKET_LISTS; i++) { - struct packet_list *pl = packet_list_alloc(s); - if (pl == NULL) - break; - list_add_tail(&pl->link, &s->free_packet_lists); - } - - return i < MAX_PACKET_LISTS ? -1 : 0; -} - -static void stream_free_packet_lists(struct stream *s) -{ - struct packet_list *packet_l, *packet_l_next; - - if (s->current_packet_list != NULL) - packet_list_free(s->current_packet_list, s); - list_for_each_entry_safe(packet_l, packet_l_next, &s->dma_packet_lists, link) - packet_list_free(packet_l, s); - list_for_each_entry_safe(packet_l, packet_l_next, &s->free_packet_lists, link) - packet_list_free(packet_l, s); - if (s->packet_pool != NULL) - pci_pool_destroy(s->packet_pool); - - s->current_packet_list = NULL; - INIT_LIST_HEAD(&s->free_packet_lists); - INIT_LIST_HEAD(&s->dma_packet_lists); - s->packet_pool = NULL; -} - -static void plug_update(struct cmp_pcr *plug, void *data) -{ - struct stream *s = data; - - HPSB_INFO("plug update: p2p_count=%d, channel=%d", - plug->p2p_count, plug->channel); - s->iso_channel = plug->channel; - if (plug->p2p_count > 0) { - struct packet_list *pl; - - pl = list_entry(s->dma_packet_lists.next, struct packet_list, link); - stream_start_dma(s, pl); - } - else { - ohci1394_stop_it_ctx(s->host->ohci, s->iso_tasklet.context, 0); - } -} - -static int stream_configure(struct stream *s, int cmd, struct amdtp_ioctl *cfg) -{ - const int transfer_delay = 9000; - - if (cfg->format <= AMDTP_FORMAT_IEC958_AC3) - s->format = cfg->format; - else - return -EINVAL; - - switch (cfg->rate) { - case 32000: - s->syt_interval = 8; - s->fdf = FDF_SFC_32KHZ; - s->iec958_rate_code = 0x0c; - break; - case 44100: - s->syt_interval = 8; - s->fdf = FDF_SFC_44K1HZ; - s->iec958_rate_code = 0x00; - break; - case 48000: - s->syt_interval = 8; - s->fdf = FDF_SFC_48KHZ; - s->iec958_rate_code = 0x04; - break; - case 88200: - s->syt_interval = 16; - s->fdf = FDF_SFC_88K2HZ; - s->iec958_rate_code = 0x00; - break; - case 96000: - s->syt_interval = 16; - s->fdf = FDF_SFC_96KHZ; - s->iec958_rate_code = 0x00; - break; - case 176400: - s->syt_interval = 32; - s->fdf = FDF_SFC_176K4HZ; - s->iec958_rate_code = 0x00; - break; - case 192000: - s->syt_interval = 32; - s->fdf = FDF_SFC_192KHZ; - s->iec958_rate_code = 0x00; - break; - - default: - return -EINVAL; - } - - s->rate = cfg->rate; - fraction_init(&s->samples_per_cycle, s->rate, 8000); - fraction_init(&s->ready_samples, 0, 8000); - - /* The ticks_per_syt_offset is initialized to the number of - * ticks between syt_interval events. The number of ticks per - * second is 24.576e6, so the number of ticks between - * syt_interval events is 24.576e6 * syt_interval / rate. - */ - fraction_init(&s->ticks_per_syt_offset, - 24576000 * s->syt_interval, s->rate); - fraction_init(&s->cycle_offset, (transfer_delay % 3072) * s->rate, s->rate); - atomic_set(&s->cycle_count, transfer_delay / 3072); - atomic_set(&s->cycle_count2, 0); - - s->mode = cfg->mode; - s->sample_format = AMDTP_INPUT_LE16; - - /* When using the AM824 raw subformat we can stream signals of - * any dimension. The IEC958 subformat, however, only - * supports 2 channels. - */ - if (s->format == AMDTP_FORMAT_RAW || cfg->dimension == 2) - s->dimension = cfg->dimension; - else - return -EINVAL; - - if (s->opcr != NULL) { - cmp_unregister_opcr(s->host->host, s->opcr); - s->opcr = NULL; - } - - switch(cmd) { - case AMDTP_IOC_PLUG: - s->opcr = cmp_register_opcr(s->host->host, cfg->u.plug, - /*payload*/ 12, plug_update, s); - if (s->opcr == NULL) - return -EINVAL; - s->iso_channel = s->opcr->channel; - break; - - case AMDTP_IOC_CHANNEL: - if (cfg->u.channel >= 0 && cfg->u.channel < 64) - s->iso_channel = cfg->u.channel; - else - return -EINVAL; - break; - } - - /* The ioctl settings were all valid, so we realloc the packet - * lists to make sure the packet size is big enough. - */ - if (s->packet_pool != NULL) - stream_free_packet_lists(s); - - if (stream_alloc_packet_lists(s) < 0) { - stream_free_packet_lists(s); - return -ENOMEM; - } - - return 0; -} - -static struct stream *stream_alloc(struct amdtp_host *host) -{ - struct stream *s; - unsigned long flags; - - s = kmalloc(sizeof(struct stream), SLAB_KERNEL); - if (s == NULL) - return NULL; - - memset(s, 0, sizeof(struct stream)); - s->host = host; - - s->input = buffer_alloc(BUFFER_SIZE); - if (s->input == NULL) { - kfree(s); - return NULL; - } - - s->descriptor_pool = pci_pool_create("descriptor pool", host->ohci->dev, - sizeof(struct descriptor_block), - 16, 0); - - if (s->descriptor_pool == NULL) { - kfree(s->input); - kfree(s); - return NULL; - } - - INIT_LIST_HEAD(&s->free_packet_lists); - INIT_LIST_HEAD(&s->dma_packet_lists); - - init_waitqueue_head(&s->packet_list_wait); - spin_lock_init(&s->packet_list_lock); - - ohci1394_init_iso_tasklet(&s->iso_tasklet, OHCI_ISO_TRANSMIT, - stream_shift_packet_lists, - (unsigned long) s); - - if (ohci1394_register_iso_tasklet(host->ohci, &s->iso_tasklet) < 0) { - pci_pool_destroy(s->descriptor_pool); - kfree(s->input); - kfree(s); - return NULL; - } - - spin_lock_irqsave(&host->stream_list_lock, flags); - list_add_tail(&s->link, &host->stream_list); - spin_unlock_irqrestore(&host->stream_list_lock, flags); - - return s; -} - -static void stream_free(struct stream *s) -{ - unsigned long flags; - - /* Stop the DMA. We wait for the dma packet list to become - * empty and let the dma controller run out of programs. This - * seems to be more reliable than stopping it directly, since - * that sometimes generates an it transmit interrupt if we - * later re-enable the context. - */ - wait_event_interruptible(s->packet_list_wait, - list_empty(&s->dma_packet_lists)); - - ohci1394_stop_it_ctx(s->host->ohci, s->iso_tasklet.context, 1); - ohci1394_unregister_iso_tasklet(s->host->ohci, &s->iso_tasklet); - - if (s->opcr != NULL) - cmp_unregister_opcr(s->host->host, s->opcr); - - spin_lock_irqsave(&s->host->stream_list_lock, flags); - list_del(&s->link); - spin_unlock_irqrestore(&s->host->stream_list_lock, flags); - - kfree(s->input); - - stream_free_packet_lists(s); - pci_pool_destroy(s->descriptor_pool); - - kfree(s); -} - -/* File operations */ - -static ssize_t amdtp_write(struct file *file, const char __user *buffer, size_t count, - loff_t *offset_is_ignored) -{ - struct stream *s = file->private_data; - unsigned char *p; - int i; - size_t length; - - if (s->packet_pool == NULL) - return -EBADFD; - - /* Fill the circular buffer from the input buffer and call the - * iso packer when the buffer is full. The iso packer may - * leave bytes in the buffer for two reasons: either the - * remaining bytes wasn't enough to build a new packet, or - * there were no free packet lists. In the first case we - * re-fill the buffer and call the iso packer again or return - * if we used all the data from userspace. In the second - * case, the wait_event_interruptible will block until the irq - * handler frees a packet list. - */ - - for (i = 0; i < count; i += length) { - p = buffer_put_bytes(s->input, count - i, &length); - if (copy_from_user(p, buffer + i, length)) - return -EFAULT; - if (s->input->length < s->input->size) - continue; - - stream_flush(s); - - if (s->current_packet_list != NULL) - continue; - - if (file->f_flags & O_NONBLOCK) - return i + length > 0 ? i + length : -EAGAIN; - - if (wait_event_interruptible(s->packet_list_wait, - !list_empty(&s->free_packet_lists))) - return -EINTR; - } - - return count; -} - -static long amdtp_ioctl(struct file *file, unsigned int cmd, unsigned long arg) -{ - struct stream *s = file->private_data; - struct amdtp_ioctl cfg; - int err; - lock_kernel(); - switch(cmd) - { - case AMDTP_IOC_PLUG: - case AMDTP_IOC_CHANNEL: - if (copy_from_user(&cfg, (struct amdtp_ioctl __user *) arg, sizeof cfg)) - err = -EFAULT; - else - err = stream_configure(s, cmd, &cfg); - break; - - default: - err = -EINVAL; - break; - } - unlock_kernel(); - return err; -} - -static unsigned int amdtp_poll(struct file *file, poll_table *pt) -{ - struct stream *s = file->private_data; - - poll_wait(file, &s->packet_list_wait, pt); - - if (!list_empty(&s->free_packet_lists)) - return POLLOUT | POLLWRNORM; - else - return 0; -} - -static int amdtp_open(struct inode *inode, struct file *file) -{ - struct amdtp_host *host; - int i = ieee1394_file_to_instance(file); - - host = hpsb_get_hostinfo_bykey(&amdtp_highlevel, i); - if (host == NULL) - return -ENODEV; - - file->private_data = stream_alloc(host); - if (file->private_data == NULL) - return -ENOMEM; - - return 0; -} - -static int amdtp_release(struct inode *inode, struct file *file) -{ - struct stream *s = file->private_data; - - stream_free(s); - - return 0; -} - -static struct cdev amdtp_cdev; -static struct file_operations amdtp_fops = -{ - .owner = THIS_MODULE, - .write = amdtp_write, - .poll = amdtp_poll, - .unlocked_ioctl = amdtp_ioctl, - .compat_ioctl = amdtp_ioctl, /* All amdtp ioctls are compatible */ - .open = amdtp_open, - .release = amdtp_release -}; - -/* IEEE1394 Subsystem functions */ - -static void amdtp_add_host(struct hpsb_host *host) -{ - struct amdtp_host *ah; - int minor; - - if (strcmp(host->driver->name, OHCI1394_DRIVER_NAME) != 0) - return; - - ah = hpsb_create_hostinfo(&amdtp_highlevel, host, sizeof(*ah)); - if (!ah) { - HPSB_ERR("amdtp: Unable able to alloc hostinfo"); - return; - } - - ah->host = host; - ah->ohci = host->hostdata; - - hpsb_set_hostinfo_key(&amdtp_highlevel, host, ah->host->id); - - minor = IEEE1394_MINOR_BLOCK_AMDTP * 16 + ah->host->id; - - INIT_LIST_HEAD(&ah->stream_list); - spin_lock_init(&ah->stream_list_lock); - - devfs_mk_cdev(MKDEV(IEEE1394_MAJOR, minor), - S_IFCHR|S_IRUSR|S_IWUSR, "amdtp/%d", ah->host->id); -} - -static void amdtp_remove_host(struct hpsb_host *host) -{ - struct amdtp_host *ah = hpsb_get_hostinfo(&amdtp_highlevel, host); - - if (ah) - devfs_remove("amdtp/%d", ah->host->id); - - return; -} - -static struct hpsb_highlevel amdtp_highlevel = { - .name = "amdtp", - .add_host = amdtp_add_host, - .remove_host = amdtp_remove_host, -}; - -/* Module interface */ - -MODULE_AUTHOR("Kristian Hogsberg "); -MODULE_DESCRIPTION("Driver for Audio & Music Data Transmission Protocol " - "on OHCI boards."); -MODULE_SUPPORTED_DEVICE("amdtp"); -MODULE_LICENSE("GPL"); - -static int __init amdtp_init_module (void) -{ - cdev_init(&amdtp_cdev, &amdtp_fops); - amdtp_cdev.owner = THIS_MODULE; - kobject_set_name(&amdtp_cdev.kobj, "amdtp"); - if (cdev_add(&amdtp_cdev, IEEE1394_AMDTP_DEV, 16)) { - HPSB_ERR("amdtp: unable to add char device"); - return -EIO; - } - - devfs_mk_dir("amdtp"); - - hpsb_register_highlevel(&amdtp_highlevel); - - HPSB_INFO("Loaded AMDTP driver"); - - return 0; -} - -static void __exit amdtp_exit_module (void) -{ - hpsb_unregister_highlevel(&amdtp_highlevel); - devfs_remove("amdtp"); - cdev_del(&amdtp_cdev); - - HPSB_INFO("Unloaded AMDTP driver"); -} - -module_init(amdtp_init_module); -module_exit(amdtp_exit_module); Index: linux/drivers/ieee1394/amdtp.h =================================================================== --- linux.orig/drivers/ieee1394/amdtp.h +++ /dev/null @@ -1,84 +0,0 @@ -/* -*- c-basic-offset: 8 -*- */ - -#ifndef __AMDTP_H -#define __AMDTP_H - -#include -#include "ieee1394-ioctl.h" - -/* The userspace interface for the Audio & Music Data Transmission - * Protocol driver is really simple. First, open /dev/amdtp, use the - * ioctl to configure format, rate, dimension and either plug or - * channel, then start writing samples. - * - * The formats supported by the driver are listed below. - * AMDTP_FORMAT_RAW corresponds to the AM824 raw format, which can - * carry any number of channels, so use this if you're streaming - * multichannel audio. The AMDTP_FORMAT_IEC958_PCM corresponds to the - * AM824 IEC958 encapsulation without the IEC958 data bit set, using - * AMDTP_FORMAT_IEC958_AC3 will transmit the samples with the data bit - * set, suitable for transmitting compressed AC-3 audio. - * - * The rate field specifies the transmission rate; supported values - * are 32000, 44100, 48000, 88200, 96000, 176400 and 192000. - * - * The dimension field specifies the dimension of the signal, that is, - * the number of audio channels. Only AMDTP_FORMAT_RAW supports - * settings greater than 2. - * - * The mode field specifies which transmission mode to use. The AMDTP - * specifies two different transmission modes: blocking and - * non-blocking. The blocking transmission mode always send a fixed - * number of samples, typically 8, 16 or 32. To exactly match the - * transmission rate, the driver alternates between sending empty and - * non-empty packets. In non-blocking mode, the driver transmits as - * small packets as possible. For example, for a transmission rate of - * 44100Hz, the driver should send 5 41/80 samples in every cycle, but - * this is not possible so instead the driver alternates between - * sending 5 and 6 samples. - * - * The last thing to specify is either the isochronous channel to use - * or the output plug to connect to. If you know what channel the - * destination device will listen on, you can specify the channel - * directly and use the AMDTP_IOC_CHANNEL ioctl. However, if the - * destination device chooses the channel and uses the IEC61883-1 plug - * mechanism, you can specify an output plug to connect to. The - * driver will pick up the channel number from the plug once the - * destination device locks the output plug control register. In this - * case set the plug field and use the AMDTP_IOC_PLUG ioctl. - * - * Having configured the interface, the driver now accepts writes of - * regular 16 bit signed little endian samples, with the channels - * interleaved. For example, 4 channels would look like: - * - * | sample 0 | sample 1 ... - * | ch. 0 | ch. 1 | ch. 2 | ch. 3 | ch. 0 | ... - * | lsb | msb | lsb | msb | lsb | msb | lsb | msb | lsb | msb | ... - * - */ - -enum { - AMDTP_FORMAT_RAW, - AMDTP_FORMAT_IEC958_PCM, - AMDTP_FORMAT_IEC958_AC3 -}; - -enum { - AMDTP_MODE_BLOCKING, - AMDTP_MODE_NON_BLOCKING, -}; - -enum { - AMDTP_INPUT_LE16, - AMDTP_INPUT_BE16, -}; - -struct amdtp_ioctl { - __u32 format; - __u32 rate; - __u32 dimension; - __u32 mode; - union { __u32 channel; __u32 plug; } u; -}; - -#endif /* __AMDTP_H */ Index: linux/drivers/ieee1394/cmp.c =================================================================== --- linux.orig/drivers/ieee1394/cmp.c +++ /dev/null @@ -1,311 +0,0 @@ -/* -*- c-basic-offset: 8 -*- - * - * cmp.c - Connection Management Procedures - * Copyright (C) 2001 Kristian Høgsberg - * - * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - */ - -/* TODO - * ---- - * - * - Implement IEC61883-1 output plugs and connection management. - * This should probably be part of the general subsystem, as it could - * be shared with dv1394. - * - * - Add IEC61883 unit directory when loading this module. This - * requires a run-time changeable config rom. - */ - -#include -#include -#include -#include -#include -#include - -#include "hosts.h" -#include "highlevel.h" -#include "ieee1394.h" -#include "ieee1394_core.h" -#include "cmp.h" - -struct plug { - union { - struct cmp_pcr pcr; - quadlet_t quadlet; - } u; - void (*update)(struct cmp_pcr *plug, void *data); - void *data; -}; - -struct cmp_host { - struct hpsb_host *host; - - union { - struct cmp_mpr ompr; - quadlet_t ompr_quadlet; - } u; - struct plug opcr[2]; - - union { - struct cmp_mpr impr; - quadlet_t impr_quadlet; - } v; - struct plug ipcr[2]; -}; - -enum { - CMP_P2P_CONNECTION, - CMP_BC_CONNECTION -}; - -#define CSR_PCR_MAP 0x900 -#define CSR_PCR_MAP_END 0x9fc - -static struct hpsb_highlevel cmp_highlevel; - -static void cmp_add_host(struct hpsb_host *host); -static void cmp_host_reset(struct hpsb_host *host); -static int pcr_read(struct hpsb_host *host, int nodeid, quadlet_t *buf, - u64 addr, size_t length, u16 flags); -static int pcr_lock(struct hpsb_host *host, int nodeid, quadlet_t *store, - u64 addr, quadlet_t data, quadlet_t arg, int extcode, u16 flags); - -static struct hpsb_highlevel cmp_highlevel = { - .name = "cmp", - .add_host = cmp_add_host, - .host_reset = cmp_host_reset, -}; - -static struct hpsb_address_ops pcr_ops = { - .read = pcr_read, - .lock = pcr_lock, -}; - - -struct cmp_pcr * -cmp_register_opcr(struct hpsb_host *host, int opcr_number, int payload, - void (*update)(struct cmp_pcr *pcr, void *data), - void *data) -{ - struct cmp_host *ch; - struct plug *plug; - - ch = hpsb_get_hostinfo(&cmp_highlevel, host); - - if (opcr_number >= ch->u.ompr.nplugs || - ch->opcr[opcr_number].update != NULL) - return NULL; - - plug = &ch->opcr[opcr_number]; - plug->u.pcr.online = 1; - plug->u.pcr.bcast_count = 0; - plug->u.pcr.p2p_count = 0; - plug->u.pcr.overhead = 0; - plug->u.pcr.payload = payload; - plug->update = update; - plug->data = data; - - return &plug->u.pcr; -} - -void cmp_unregister_opcr(struct hpsb_host *host, struct cmp_pcr *opcr) -{ - struct cmp_host *ch; - struct plug *plug; - - ch = hpsb_get_hostinfo(&cmp_highlevel, host); - plug = (struct plug *)opcr; - if (plug - ch->opcr >= ch->u.ompr.nplugs) BUG(); - - plug->u.pcr.online = 0; - plug->update = NULL; -} - -static void reset_plugs(struct cmp_host *ch) -{ - int i; - - ch->u.ompr.non_persistent_ext = 0xff; - for (i = 0; i < ch->u.ompr.nplugs; i++) { - ch->opcr[i].u.pcr.bcast_count = 0; - ch->opcr[i].u.pcr.p2p_count = 0; - ch->opcr[i].u.pcr.overhead = 0; - } -} - -static void cmp_add_host(struct hpsb_host *host) -{ - struct cmp_host *ch = hpsb_create_hostinfo(&cmp_highlevel, host, sizeof (*ch)); - - if (ch == NULL) { - HPSB_ERR("Failed to allocate cmp_host"); - return; - } - - hpsb_register_addrspace(&cmp_highlevel, host, &pcr_ops, - CSR_REGISTER_BASE + CSR_PCR_MAP, - CSR_REGISTER_BASE + CSR_PCR_MAP_END); - - ch->host = host; - ch->u.ompr.rate = IEEE1394_SPEED_100; - ch->u.ompr.bcast_channel_base = 63; - ch->u.ompr.nplugs = 2; - - reset_plugs(ch); -} - -static void cmp_host_reset(struct hpsb_host *host) -{ - struct cmp_host *ch; - - ch = hpsb_get_hostinfo(&cmp_highlevel, host); - if (ch == NULL) { - HPSB_ERR("cmp: Tried to reset unknown host"); - return; - } - - reset_plugs(ch); -} - -static int pcr_read(struct hpsb_host *host, int nodeid, quadlet_t *buf, - u64 addr, size_t length, u16 flags) -{ - int csraddr = addr - CSR_REGISTER_BASE; - int plug; - struct cmp_host *ch; - - if (length != 4) - return RCODE_TYPE_ERROR; - - ch = hpsb_get_hostinfo(&cmp_highlevel, host); - if (csraddr == 0x900) { - *buf = cpu_to_be32(ch->u.ompr_quadlet); - return RCODE_COMPLETE; - } - else if (csraddr < 0x904 + ch->u.ompr.nplugs * 4) { - plug = (csraddr - 0x904) / 4; - *buf = cpu_to_be32(ch->opcr[plug].u.quadlet); - return RCODE_COMPLETE; - } - else if (csraddr < 0x980) { - return RCODE_ADDRESS_ERROR; - } - else if (csraddr == 0x980) { - *buf = cpu_to_be32(ch->v.impr_quadlet); - return RCODE_COMPLETE; - } - else if (csraddr < 0x984 + ch->v.impr.nplugs * 4) { - plug = (csraddr - 0x984) / 4; - *buf = cpu_to_be32(ch->ipcr[plug].u.quadlet); - return RCODE_COMPLETE; - } - else - return RCODE_ADDRESS_ERROR; -} - -static int pcr_lock(struct hpsb_host *host, int nodeid, quadlet_t *store, - u64 addr, quadlet_t data, quadlet_t arg, int extcode, u16 flags) -{ - int csraddr = addr - CSR_REGISTER_BASE; - int plug; - struct cmp_host *ch; - - ch = hpsb_get_hostinfo(&cmp_highlevel, host); - - if (extcode != EXTCODE_COMPARE_SWAP) - return RCODE_TYPE_ERROR; - - if (csraddr == 0x900) { - /* FIXME: Ignore writes to bits 30-31 and 0-7 */ - *store = cpu_to_be32(ch->u.ompr_quadlet); - if (arg == cpu_to_be32(ch->u.ompr_quadlet)) - ch->u.ompr_quadlet = be32_to_cpu(data); - - return RCODE_COMPLETE; - } - if (csraddr < 0x904 + ch->u.ompr.nplugs * 4) { - plug = (csraddr - 0x904) / 4; - *store = cpu_to_be32(ch->opcr[plug].u.quadlet); - - if (arg == *store) - ch->opcr[plug].u.quadlet = be32_to_cpu(data); - - if (be32_to_cpu(*store) != ch->opcr[plug].u.quadlet && - ch->opcr[plug].update != NULL) - ch->opcr[plug].update(&ch->opcr[plug].u.pcr, - ch->opcr[plug].data); - - return RCODE_COMPLETE; - } - else if (csraddr < 0x980) { - return RCODE_ADDRESS_ERROR; - } - else if (csraddr == 0x980) { - /* FIXME: Ignore writes to bits 24-31 and 0-7 */ - *store = cpu_to_be32(ch->u.ompr_quadlet); - if (arg == cpu_to_be32(ch->u.ompr_quadlet)) - ch->u.ompr_quadlet = be32_to_cpu(data); - - return RCODE_COMPLETE; - } - else if (csraddr < 0x984 + ch->v.impr.nplugs * 4) { - plug = (csraddr - 0x984) / 4; - *store = cpu_to_be32(ch->ipcr[plug].u.quadlet); - - if (arg == *store) - ch->ipcr[plug].u.quadlet = be32_to_cpu(data); - - if (be32_to_cpu(*store) != ch->ipcr[plug].u.quadlet && - ch->ipcr[plug].update != NULL) - ch->ipcr[plug].update(&ch->ipcr[plug].u.pcr, - ch->ipcr[plug].data); - - return RCODE_COMPLETE; - } - else - return RCODE_ADDRESS_ERROR; -} - - -/* Module interface */ - -MODULE_AUTHOR("Kristian Hogsberg "); -MODULE_DESCRIPTION("Connection Management Procedures (CMP)"); -MODULE_SUPPORTED_DEVICE("cmp"); -MODULE_LICENSE("GPL"); - -EXPORT_SYMBOL(cmp_register_opcr); -EXPORT_SYMBOL(cmp_unregister_opcr); - -static int __init cmp_init_module (void) -{ - hpsb_register_highlevel (&cmp_highlevel); - - HPSB_INFO("Loaded CMP driver"); - - return 0; -} - -static void __exit cmp_exit_module (void) -{ - hpsb_unregister_highlevel(&cmp_highlevel); - - HPSB_INFO("Unloaded CMP driver"); -} - -module_init(cmp_init_module); -module_exit(cmp_exit_module); Index: linux/drivers/ieee1394/cmp.h =================================================================== --- linux.orig/drivers/ieee1394/cmp.h +++ /dev/null @@ -1,31 +0,0 @@ -#ifndef __CMP_H -#define __CMP_H - -struct cmp_mpr { - u32 nplugs:5; - u32 reserved:3; - u32 persistent_ext:8; - u32 non_persistent_ext:8; - u32 bcast_channel_base:6; - u32 rate:2; -} __attribute__((packed)); - -struct cmp_pcr { - u32 payload:10; - u32 overhead:4; - u32 speed:2; - u32 channel:6; - u32 reserved:2; - u32 p2p_count:6; - u32 bcast_count:1; - u32 online:1; -} __attribute__((packed)); - -struct cmp_pcr *cmp_register_opcr(struct hpsb_host *host, int plug, - int payload, - void (*update)(struct cmp_pcr *plug, - void *data), - void *data); -void cmp_unregister_opcr(struct hpsb_host *host, struct cmp_pcr *plug); - -#endif /* __CMP_H */ Index: linux/drivers/ieee1394/ieee1394-ioctl.h =================================================================== --- linux.orig/drivers/ieee1394/ieee1394-ioctl.h +++ linux/drivers/ieee1394/ieee1394-ioctl.h @@ -7,14 +7,6 @@ #include #include - -/* AMDTP Gets 6 */ -#define AMDTP_IOC_CHANNEL _IOW('#', 0x00, struct amdtp_ioctl) -#define AMDTP_IOC_PLUG _IOW('#', 0x01, struct amdtp_ioctl) -#define AMDTP_IOC_PING _IOW('#', 0x02, struct amdtp_ioctl) -#define AMDTP_IOC_ZAP _IO ('#', 0x03) - - /* DV1394 Gets 10 */ /* Get the driver ready to transmit video. pass a struct dv1394_init* as Index: linux/drivers/ieee1394/ohci1394.h =================================================================== --- linux.orig/drivers/ieee1394/ohci1394.h +++ linux/drivers/ieee1394/ohci1394.h @@ -219,8 +219,8 @@ struct ti_ohci { int self_id_errors; - /* Tasklets for iso receive and transmit, used by video1394, - * amdtp and dv1394 */ + /* Tasklets for iso receive and transmit, used by video1394 + * and dv1394 */ struct list_head iso_tasklet_list; spinlock_t iso_tasklet_list_lock; Index: linux/drivers/ieee1394/Makefile =================================================================== --- linux.orig/drivers/ieee1394/Makefile +++ linux/drivers/ieee1394/Makefile @@ -14,8 +14,6 @@ obj-$(CONFIG_IEEE1394_RAWIO) += raw1394. obj-$(CONFIG_IEEE1394_SBP2) += sbp2.o obj-$(CONFIG_IEEE1394_DV1394) += dv1394.o obj-$(CONFIG_IEEE1394_ETH1394) += eth1394.o -obj-$(CONFIG_IEEE1394_AMDTP) += amdtp.o -obj-$(CONFIG_IEEE1394_CMP) += cmp.o quiet_cmd_oui2c = OUI2C $@ cmd_oui2c = $(CONFIG_SHELL) $(srctree)/$(src)/oui2c.sh < $< > $@