From 6fb73d771159f2d1c9936d769ee42b3a7be3086a Mon Sep 17 00:00:00 2001 From: Mike Isely Date: Sun, 21 Jan 2007 22:44:03 -0600 Subject: pvrusb2: Add comment for why G_TUNER only looks at index zero From: Mike Isely Mauro and I had fixed this bug at the same time. It's a silly one-liner, but my version of the fix included a comment explaining why it was needed. So I'm putting up this version of the fix. Signed-off-by: Mike Isely --- linux/drivers/media/video/pvrusb2/pvrusb2-v4l2.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'linux/drivers/media/video/pvrusb2') diff --git a/linux/drivers/media/video/pvrusb2/pvrusb2-v4l2.c b/linux/drivers/media/video/pvrusb2/pvrusb2-v4l2.c index 621a0dd31..ac7ead462 100644 --- a/linux/drivers/media/video/pvrusb2/pvrusb2-v4l2.c +++ b/linux/drivers/media/video/pvrusb2/pvrusb2-v4l2.c @@ -367,8 +367,7 @@ static int pvr2_v4l2_do_ioctl(struct inode *inode, struct file *file, { struct v4l2_tuner *vt = (struct v4l2_tuner *)arg; - if (vt->index != 0) - break; + if (vt->index != 0) break; /* Only answer for the 1st tuner */ pvr2_hdw_execute_tuner_poll(hdw); ret = pvr2_hdw_get_tuner_status(hdw,vt); -- cgit v1.2.3 From 659ced75da379c72af9c077030331a1aaa990a46 Mon Sep 17 00:00:00 2001 From: Mike Isely Date: Sun, 21 Jan 2007 23:17:55 -0600 Subject: pvrusb2: Use macro names for FX2 commands From: Michael Krufky This is a maintainability cleanup; use nice names for all the FX2 commands instead of raw bytes. This way we can easily find where we issue FX commands. Signed-off-by: Michael Krufky Signed-off-by: Mike Isely --- .../drivers/media/video/pvrusb2/pvrusb2-encoder.c | 6 +++-- .../drivers/media/video/pvrusb2/pvrusb2-fx2-cmd.h | 28 ++++++++++++++++++++++ linux/drivers/media/video/pvrusb2/pvrusb2-hdw.c | 18 +++++++------- .../drivers/media/video/pvrusb2/pvrusb2-i2c-core.c | 7 +++--- 4 files changed, 46 insertions(+), 13 deletions(-) create mode 100644 linux/drivers/media/video/pvrusb2/pvrusb2-fx2-cmd.h (limited to 'linux/drivers/media/video/pvrusb2') diff --git a/linux/drivers/media/video/pvrusb2/pvrusb2-encoder.c b/linux/drivers/media/video/pvrusb2/pvrusb2-encoder.c index 95e45be08..80a624d0f 100644 --- a/linux/drivers/media/video/pvrusb2/pvrusb2-encoder.c +++ b/linux/drivers/media/video/pvrusb2/pvrusb2-encoder.c @@ -27,6 +27,7 @@ #include "pvrusb2-encoder.h" #include "pvrusb2-hdw-internal.h" #include "pvrusb2-debug.h" +#include "pvrusb2-fx2-cmd.h" @@ -58,7 +59,7 @@ static int pvr2_encoder_write_words(struct pvr2_hdw *hdw, chunkCnt = 8; if (chunkCnt > dlen) chunkCnt = dlen; memset(hdw->cmd_buffer,0,sizeof(hdw->cmd_buffer)); - hdw->cmd_buffer[0] = 0x01; + hdw->cmd_buffer[0] = FX2CMD_MEM_WRITE_DWORD; for (idx = 0; idx < chunkCnt; idx++) { hdw->cmd_buffer[1+(idx*7)+6] = 0x44 + idx + offs; PVR2_DECOMPOSE_LE(hdw->cmd_buffer, 1+(idx*7), @@ -99,7 +100,8 @@ static int pvr2_encoder_read_words(struct pvr2_hdw *hdw,int statusFl, chunkCnt = 16; if (chunkCnt > dlen) chunkCnt = dlen; memset(hdw->cmd_buffer,0,sizeof(hdw->cmd_buffer)); - hdw->cmd_buffer[0] = statusFl ? 0x02 : 0x28; + hdw->cmd_buffer[0] = + (statusFl ? FX2CMD_MEM_READ_DWORD : FX2CMD_MEM_READ_64BYTES); hdw->cmd_buffer[7] = 0x44 + offs; ret = pvr2_send_request(hdw, hdw->cmd_buffer,8, diff --git a/linux/drivers/media/video/pvrusb2/pvrusb2-fx2-cmd.h b/linux/drivers/media/video/pvrusb2/pvrusb2-fx2-cmd.h new file mode 100644 index 000000000..556628ad4 --- /dev/null +++ b/linux/drivers/media/video/pvrusb2/pvrusb2-fx2-cmd.h @@ -0,0 +1,28 @@ +#ifndef _PVRUSB2_FX2_CMD_H_ +#define _PVRUSB2_FX2_CMD_H_ + +#define FX2CMD_MEM_WRITE_DWORD 0x01 +#define FX2CMD_MEM_READ_DWORD 0x02 + +#define FX2CMD_MEM_READ_64BYTES 0x28 + +#define FX2CMD_REG_WRITE 0x04 +#define FX2CMD_REG_READ 0x05 + +#define FX2CMD_I2C_WRITE 0x08 +#define FX2CMD_I2C_READ 0x09 + +#define FX2CMD_GET_USB_SPEED 0x0b + +#define FX2CMD_STREAMING_ON 0x36 +#define FX2CMD_STREAMING_OFF 0x37 + +#define FX2CMD_POWER_OFF 0xdc +#define FX2CMD_POWER_ON 0xde + +#define FX2CMD_DEEP_RESET 0xdd + +#define FX2CMD_GET_EEPROM_ADDR 0xeb +#define FX2CMD_GET_IR_CODE 0xec + +#endif /* _PVRUSB2_FX2_CMD_H_ */ diff --git a/linux/drivers/media/video/pvrusb2/pvrusb2-hdw.c b/linux/drivers/media/video/pvrusb2/pvrusb2-hdw.c index b07bd58ea..589c094f1 100644 --- a/linux/drivers/media/video/pvrusb2/pvrusb2-hdw.c +++ b/linux/drivers/media/video/pvrusb2/pvrusb2-hdw.c @@ -37,6 +37,7 @@ #include "pvrusb2-hdw-internal.h" #include "pvrusb2-encoder.h" #include "pvrusb2-debug.h" +#include "pvrusb2-fx2-cmd.h" #define TV_MIN_FREQ 55250000L #define TV_MAX_FREQ 850000000L @@ -1674,7 +1675,7 @@ static int pvr2_hdw_check_firmware(struct pvr2_hdw *hdw) firmware needs be loaded. */ int result; LOCK_TAKE(hdw->ctl_lock); do { - hdw->cmd_buffer[0] = 0xeb; + hdw->cmd_buffer[0] = FX2CMD_GET_EEPROM_ADDR; result = pvr2_send_request_ex(hdw,HZ*1,!0, hdw->cmd_buffer,1, hdw->cmd_buffer,1); @@ -2565,7 +2566,7 @@ int pvr2_hdw_is_hsm(struct pvr2_hdw *hdw) { int result; LOCK_TAKE(hdw->ctl_lock); do { - hdw->cmd_buffer[0] = 0x0b; + hdw->cmd_buffer[0] = FX2CMD_GET_USB_SPEED; result = pvr2_send_request(hdw, hdw->cmd_buffer,1, hdw->cmd_buffer,1); @@ -3089,7 +3090,7 @@ int pvr2_write_register(struct pvr2_hdw *hdw, u16 reg, u32 data) LOCK_TAKE(hdw->ctl_lock); - hdw->cmd_buffer[0] = 0x04; /* write register prefix */ + hdw->cmd_buffer[0] = FX2CMD_REG_WRITE; /* write register prefix */ PVR2_DECOMPOSE_LE(hdw->cmd_buffer,1,data); hdw->cmd_buffer[5] = 0; hdw->cmd_buffer[6] = (reg >> 8) & 0xff; @@ -3110,7 +3111,7 @@ static int pvr2_read_register(struct pvr2_hdw *hdw, u16 reg, u32 *data) LOCK_TAKE(hdw->ctl_lock); - hdw->cmd_buffer[0] = 0x05; /* read register prefix */ + hdw->cmd_buffer[0] = FX2CMD_REG_READ; /* read register prefix */ hdw->cmd_buffer[1] = 0; hdw->cmd_buffer[2] = 0; hdw->cmd_buffer[3] = 0; @@ -3234,7 +3235,7 @@ int pvr2_hdw_cmd_deep_reset(struct pvr2_hdw *hdw) LOCK_TAKE(hdw->ctl_lock); do { pvr2_trace(PVR2_TRACE_INIT,"Requesting uproc hard reset"); hdw->flag_ok = !0; - hdw->cmd_buffer[0] = 0xdd; + hdw->cmd_buffer[0] = FX2CMD_DEEP_RESET; status = pvr2_send_request(hdw,hdw->cmd_buffer,1,NULL,0); } while (0); LOCK_GIVE(hdw->ctl_lock); return status; @@ -3246,7 +3247,7 @@ int pvr2_hdw_cmd_powerup(struct pvr2_hdw *hdw) int status; LOCK_TAKE(hdw->ctl_lock); do { pvr2_trace(PVR2_TRACE_INIT,"Requesting powerup"); - hdw->cmd_buffer[0] = 0xde; + hdw->cmd_buffer[0] = FX2CMD_POWER_ON; status = pvr2_send_request(hdw,hdw->cmd_buffer,1,NULL,0); } while (0); LOCK_GIVE(hdw->ctl_lock); return status; @@ -3279,7 +3280,8 @@ static int pvr2_hdw_cmd_usbstream(struct pvr2_hdw *hdw,int runFl) { int status; LOCK_TAKE(hdw->ctl_lock); do { - hdw->cmd_buffer[0] = (runFl ? 0x36 : 0x37); + hdw->cmd_buffer[0] = + (runFl ? FX2CMD_STREAMING_ON : FX2CMD_STREAMING_OFF); status = pvr2_send_request(hdw,hdw->cmd_buffer,1,NULL,0); } while (0); LOCK_GIVE(hdw->ctl_lock); if (!status) { @@ -3378,7 +3380,7 @@ static int pvr2_hdw_get_eeprom_addr(struct pvr2_hdw *hdw) { int result; LOCK_TAKE(hdw->ctl_lock); do { - hdw->cmd_buffer[0] = 0xeb; + hdw->cmd_buffer[0] = FX2CMD_GET_EEPROM_ADDR; result = pvr2_send_request(hdw, hdw->cmd_buffer,1, hdw->cmd_buffer,1); diff --git a/linux/drivers/media/video/pvrusb2/pvrusb2-i2c-core.c b/linux/drivers/media/video/pvrusb2/pvrusb2-i2c-core.c index 4a4f1d64b..05c39d25f 100644 --- a/linux/drivers/media/video/pvrusb2/pvrusb2-i2c-core.c +++ b/linux/drivers/media/video/pvrusb2/pvrusb2-i2c-core.c @@ -23,6 +23,7 @@ #include "pvrusb2-i2c-core.h" #include "pvrusb2-hdw-internal.h" #include "pvrusb2-debug.h" +#include "pvrusb2-fx2-cmd.h" #define trace_i2c(...) pvr2_trace(PVR2_TRACE_I2C,__VA_ARGS__) @@ -70,7 +71,7 @@ static int pvr2_i2c_write(struct pvr2_hdw *hdw, /* Context */ memset(hdw->cmd_buffer, 0, sizeof(hdw->cmd_buffer)); /* Set up command buffer for an I2C write */ - hdw->cmd_buffer[0] = 0x08; /* write prefix */ + hdw->cmd_buffer[0] = FX2CMD_I2C_WRITE; /* write prefix */ hdw->cmd_buffer[1] = i2c_addr; /* i2c addr of chip */ hdw->cmd_buffer[2] = length; /* length of what follows */ if (length) memcpy(hdw->cmd_buffer + 3, data, length); @@ -139,7 +140,7 @@ static int pvr2_i2c_read(struct pvr2_hdw *hdw, /* Context */ memset(hdw->cmd_buffer, 0, sizeof(hdw->cmd_buffer)); /* Set up command buffer for an I2C write followed by a read */ - hdw->cmd_buffer[0] = 0x09; /* read prefix */ + hdw->cmd_buffer[0] = FX2CMD_I2C_READ; /* read prefix */ hdw->cmd_buffer[1] = dlen; /* arg length */ hdw->cmd_buffer[2] = rlen; /* answer length. Device will send one more byte (status). */ @@ -296,7 +297,7 @@ static int i2c_24xxx_ir(struct pvr2_hdw *hdw, /* Issue a command to the FX2 to read the IR receiver. */ LOCK_TAKE(hdw->ctl_lock); do { - hdw->cmd_buffer[0] = 0xec; + hdw->cmd_buffer[0] = FX2CMD_GET_IR_CODE; stat = pvr2_send_request(hdw, hdw->cmd_buffer,1, hdw->cmd_buffer,4); -- cgit v1.2.3 From 3d22ccad1a2aa5805380d65da1c56b9bf8286f6a Mon Sep 17 00:00:00 2001 From: Mike Isely Date: Sun, 21 Jan 2007 23:18:54 -0600 Subject: pvrusb2: Add boilerplate to new header file From: Mike Isely Signed-off-by: Mike Isely --- .../drivers/media/video/pvrusb2/pvrusb2-fx2-cmd.h | 31 ++++++++++++++++++++++ 1 file changed, 31 insertions(+) (limited to 'linux/drivers/media/video/pvrusb2') diff --git a/linux/drivers/media/video/pvrusb2/pvrusb2-fx2-cmd.h b/linux/drivers/media/video/pvrusb2/pvrusb2-fx2-cmd.h index 556628ad4..c6aa9751a 100644 --- a/linux/drivers/media/video/pvrusb2/pvrusb2-fx2-cmd.h +++ b/linux/drivers/media/video/pvrusb2/pvrusb2-fx2-cmd.h @@ -1,3 +1,24 @@ +/* + * + * $Id$ + * + * Copyright (C) 2007 Michael Krufky + * + * 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 + * + * 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 + * + */ + #ifndef _PVRUSB2_FX2_CMD_H_ #define _PVRUSB2_FX2_CMD_H_ @@ -26,3 +47,13 @@ #define FX2CMD_GET_IR_CODE 0xec #endif /* _PVRUSB2_FX2_CMD_H_ */ + +/* + Stuff for Emacs to see, in order to encourage consistent editing style: + *** Local Variables: *** + *** mode: c *** + *** fill-column: 75 *** + *** tab-width: 8 *** + *** c-basic-offset: 8 *** + *** End: *** + */ -- cgit v1.2.3 From e47971a164355e16e5be9d82f5977b5525d2fe57 Mon Sep 17 00:00:00 2001 From: Mike Isely Date: Sun, 28 Jan 2007 12:38:55 -0600 Subject: pvrusb2: Control protocol cleanup From: Mike Isely Several special-case FX2 commands were being issued through pvr2_write_u16() and pvr2_write_8(), but there's really nothing special case about them. These date from a very early time in the driver development. This patch removes these functions and replaces their use with calls to pvr2_send_request. Signed-off-by: Mike Isely --- .../drivers/media/video/pvrusb2/pvrusb2-fx2-cmd.h | 3 ++ linux/drivers/media/video/pvrusb2/pvrusb2-hdw.c | 50 ++++++---------------- 2 files changed, 15 insertions(+), 38 deletions(-) (limited to 'linux/drivers/media/video/pvrusb2') diff --git a/linux/drivers/media/video/pvrusb2/pvrusb2-fx2-cmd.h b/linux/drivers/media/video/pvrusb2/pvrusb2-fx2-cmd.h index c6aa9751a..ffbc6d096 100644 --- a/linux/drivers/media/video/pvrusb2/pvrusb2-fx2-cmd.h +++ b/linux/drivers/media/video/pvrusb2/pvrusb2-fx2-cmd.h @@ -29,6 +29,7 @@ #define FX2CMD_REG_WRITE 0x04 #define FX2CMD_REG_READ 0x05 +#define FX2CMD_MEMSEL 0x06 #define FX2CMD_I2C_WRITE 0x08 #define FX2CMD_I2C_READ 0x09 @@ -38,6 +39,8 @@ #define FX2CMD_STREAMING_ON 0x36 #define FX2CMD_STREAMING_OFF 0x37 +#define FX2CMD_FWPOST1 0x52 + #define FX2CMD_POWER_OFF 0xdc #define FX2CMD_POWER_ON 0xde diff --git a/linux/drivers/media/video/pvrusb2/pvrusb2-hdw.c b/linux/drivers/media/video/pvrusb2/pvrusb2-hdw.c index 87384848b..7e6ac85b6 100644 --- a/linux/drivers/media/video/pvrusb2/pvrusb2-hdw.c +++ b/linux/drivers/media/video/pvrusb2/pvrusb2-hdw.c @@ -272,8 +272,6 @@ static int pvr2_send_request_ex(struct pvr2_hdw *hdw, unsigned int timeout,int probe_fl, void *write_data,unsigned int write_len, void *read_data,unsigned int read_len); -static int pvr2_write_u16(struct pvr2_hdw *hdw, u16 data, int res); -static int pvr2_write_u8(struct pvr2_hdw *hdw, u8 data, int res); static int ctrl_channelfreq_get(struct pvr2_ctrl *cptr,int *vp) { @@ -1258,8 +1256,13 @@ int pvr2_upload_firmware2(struct pvr2_hdw *hdw) ret |= pvr2_write_register(hdw, 0xaa04, 0x00057810); /*unknown*/ ret |= pvr2_write_register(hdw, 0xaa10, 0x00148500); /*unknown*/ ret |= pvr2_write_register(hdw, 0xaa18, 0x00840000); /*unknown*/ - ret |= pvr2_write_u8(hdw, 0x52, 0); - ret |= pvr2_write_u16(hdw, 0x0600, 0); + LOCK_TAKE(hdw->ctl_lock); do { + hdw->cmd_buffer[0] = FX2CMD_FWPOST1; + ret |= pvr2_send_request(hdw,hdw->cmd_buffer,1,0,0); + hdw->cmd_buffer[0] = FX2CMD_MEMSEL; + hdw->cmd_buffer[1] = 0; + ret |= pvr2_send_request(hdw,hdw->cmd_buffer,2,0,0); + } while (0); LOCK_GIVE(hdw->ctl_lock); if (ret) { pvr2_trace(PVR2_TRACE_ERROR_LEGS, @@ -1321,7 +1324,11 @@ int pvr2_upload_firmware2(struct pvr2_hdw *hdw) ret |= pvr2_write_register(hdw, 0x9054, 0xffffffff); /*reset hw blocks*/ ret |= pvr2_write_register(hdw, 0x9058, 0xffffffe8); /*VPU ctrl*/ - ret |= pvr2_write_u16(hdw, 0x0600, 0); + LOCK_TAKE(hdw->ctl_lock); do { + hdw->cmd_buffer[0] = FX2CMD_MEMSEL; + hdw->cmd_buffer[1] = 0; + ret |= pvr2_send_request(hdw,hdw->cmd_buffer,2,0,0); + } while (0); LOCK_GIVE(hdw->ctl_lock); if (ret) { pvr2_trace(PVR2_TRACE_ERROR_LEGS, @@ -3129,39 +3136,6 @@ static int pvr2_read_register(struct pvr2_hdw *hdw, u16 reg, u32 *data) } -static int pvr2_write_u16(struct pvr2_hdw *hdw, u16 data, int res) -{ - int ret; - - LOCK_TAKE(hdw->ctl_lock); - - hdw->cmd_buffer[0] = (data >> 8) & 0xff; - hdw->cmd_buffer[1] = data & 0xff; - - ret = pvr2_send_request(hdw, hdw->cmd_buffer, 2, hdw->cmd_buffer, res); - - LOCK_GIVE(hdw->ctl_lock); - - return ret; -} - - -static int pvr2_write_u8(struct pvr2_hdw *hdw, u8 data, int res) -{ - int ret; - - LOCK_TAKE(hdw->ctl_lock); - - hdw->cmd_buffer[0] = data; - - ret = pvr2_send_request(hdw, hdw->cmd_buffer, 1, hdw->cmd_buffer, res); - - LOCK_GIVE(hdw->ctl_lock); - - return ret; -} - - static void pvr2_hdw_render_useless_unlocked(struct pvr2_hdw *hdw) { if (!hdw->flag_ok) return; -- cgit v1.2.3 From 4d697b98a476c4492c271bd489c71a3faf55558d Mon Sep 17 00:00:00 2001 From: Mike Isely Date: Sun, 28 Jan 2007 12:41:12 -0600 Subject: pvrusb2: encoder comm protocol cleanup From: Mike Isely Update the implementation of the communication protocol for operating the encoder, using updated knowledge about the encoder. Signed-off-by: Mike Isely --- .../drivers/media/video/pvrusb2/pvrusb2-encoder.c | 150 +++++++++++++-------- 1 file changed, 92 insertions(+), 58 deletions(-) (limited to 'linux/drivers/media/video/pvrusb2') diff --git a/linux/drivers/media/video/pvrusb2/pvrusb2-encoder.c b/linux/drivers/media/video/pvrusb2/pvrusb2-encoder.c index 80a624d0f..66217093b 100644 --- a/linux/drivers/media/video/pvrusb2/pvrusb2-encoder.c +++ b/linux/drivers/media/video/pvrusb2/pvrusb2-encoder.c @@ -36,34 +36,41 @@ #define IVTV_MBOX_DRIVER_DONE 0x00000002 #define IVTV_MBOX_DRIVER_BUSY 0x00000001 +#define MBOX_BASE 0x44 + static int pvr2_encoder_write_words(struct pvr2_hdw *hdw, + unsigned int offs, const u32 *data, unsigned int dlen) { - unsigned int idx; + unsigned int idx,addr; + unsigned int bAddr; int ret; - unsigned int offs = 0; unsigned int chunkCnt; /* Format: First byte must be 0x01. Remaining 32 bit words are - spread out into chunks of 7 bytes each, little-endian ordered, - offset at zero within each 2 blank bytes following and a - single byte that is 0x44 plus the offset of the word. Repeat - request for additional words, with offset adjusted - accordingly. + spread out into chunks of 7 bytes each, with the first 4 bytes + being the data word (little endian), and the next 3 bytes + being the address where that data word is to be written (big + endian). Repeat request for additional words, with offset + adjusted accordingly. */ while (dlen) { chunkCnt = 8; if (chunkCnt > dlen) chunkCnt = dlen; memset(hdw->cmd_buffer,0,sizeof(hdw->cmd_buffer)); - hdw->cmd_buffer[0] = FX2CMD_MEM_WRITE_DWORD; + bAddr = 0; + hdw->cmd_buffer[bAddr++] = FX2CMD_MEM_WRITE_DWORD; for (idx = 0; idx < chunkCnt; idx++) { - hdw->cmd_buffer[1+(idx*7)+6] = 0x44 + idx + offs; - PVR2_DECOMPOSE_LE(hdw->cmd_buffer, 1+(idx*7), - data[idx]); + addr = idx + offs; + hdw->cmd_buffer[bAddr+6] = (addr & 0xffu); + hdw->cmd_buffer[bAddr+5] = ((addr>>8) & 0xffu); + hdw->cmd_buffer[bAddr+4] = ((addr>>16) & 0xffu); + PVR2_DECOMPOSE_LE(hdw->cmd_buffer, bAddr,data[idx]); + bAddr += 7; } ret = pvr2_send_request(hdw, hdw->cmd_buffer,1+(chunkCnt*7), @@ -78,34 +85,42 @@ static int pvr2_encoder_write_words(struct pvr2_hdw *hdw, } -static int pvr2_encoder_read_words(struct pvr2_hdw *hdw,int statusFl, +static int pvr2_encoder_read_words(struct pvr2_hdw *hdw, + unsigned int offs, u32 *data, unsigned int dlen) { unsigned int idx; int ret; - unsigned int offs = 0; unsigned int chunkCnt; /* Format: First byte must be 0x02 (status check) or 0x28 (read back block of 32 bit words). Next 6 bytes must be zero, - followed by a single byte of 0x44+offset for portion to be - read. Returned data is packed set of 32 bits words that were - read. + followed by a single byte of MBOX_BASE+offset for portion to + be read. Returned data is packed set of 32 bits words that + were read. */ while (dlen) { chunkCnt = 16; if (chunkCnt > dlen) chunkCnt = dlen; - memset(hdw->cmd_buffer,0,sizeof(hdw->cmd_buffer)); + if (chunkCnt < 16) chunkCnt = 1; hdw->cmd_buffer[0] = - (statusFl ? FX2CMD_MEM_READ_DWORD : FX2CMD_MEM_READ_64BYTES); - hdw->cmd_buffer[7] = 0x44 + offs; + ((chunkCnt == 1) ? + FX2CMD_MEM_READ_DWORD : FX2CMD_MEM_READ_64BYTES); + hdw->cmd_buffer[1] = 0; + hdw->cmd_buffer[2] = 0; + hdw->cmd_buffer[3] = 0; + hdw->cmd_buffer[4] = 0; + hdw->cmd_buffer[5] = ((offs>>16) & 0xffu); + hdw->cmd_buffer[6] = ((offs>>8) & 0xffu); + hdw->cmd_buffer[7] = (offs & 0xffu); ret = pvr2_send_request(hdw, hdw->cmd_buffer,8, - hdw->cmd_buffer,chunkCnt * 4); + hdw->cmd_buffer, + (chunkCnt == 1 ? 4 : 16 * 4)); if (ret) return ret; for (idx = 0; idx < chunkCnt; idx++) { @@ -132,6 +147,8 @@ static int pvr2_encoder_cmd(void *ctxt, u32 *argp) { unsigned int poll_count; + unsigned int try_count = 0; + int retry_flag; int ret = 0; unsigned int idx; /* These sizes look to be limited by the FX2 firmware implementation */ @@ -164,14 +181,15 @@ static int pvr2_encoder_cmd(void *ctxt, /* The encoder seems to speak entirely using blocks 32 bit words. - In ivtv driver terms, this is a mailbox which we populate with - data and watch what the hardware does with it. The first word - is a set of flags used to control the transaction, the second - word is the command to execute, the third byte is zero (ivtv - driver suggests that this is some kind of return value), and - the fourth byte is a specified timeout (windows driver always - uses 0x00060000 except for one case when it is zero). All - successive words are the argument words for the command. + In ivtv driver terms, this is a mailbox at MBOX_BASE which we + populate with data and watch what the hardware does with it. + The first word is a set of flags used to control the + transaction, the second word is the command to execute, the + third byte is zero (ivtv driver suggests that this is some + kind of return value), and the fourth byte is a specified + timeout (windows driver always uses 0x00060000 except for one + case when it is zero). All successive words are the argument + words for the command. First, write out the entire set of words, with the first word being zero. @@ -180,13 +198,10 @@ static int pvr2_encoder_cmd(void *ctxt, IVTV_MBOX_DRIVER_DONE | IVTV_DRIVER_BUSY this time (which probably means "go"). - Next, read back 16 words as status. Check the first word, + Next, read back the return count words. Check the first word, which should have IVTV_MBOX_FIRMWARE_DONE set. If however that bit is not set, then the command isn't done so repeat the - read. - - Next, read back 32 words and compare with the original - arugments. Hopefully they will match. + read until it is set. Finally, write out just the first word again, but set it to 0x0 this time (which probably means "idle"). @@ -216,6 +231,9 @@ static int pvr2_encoder_cmd(void *ctxt, LOCK_TAKE(hdw->ctl_lock); do { + retry_flag = 0; + try_count++; + ret = 0; wrData[0] = 0; wrData[1] = cmd; wrData[2] = 0; @@ -227,48 +245,64 @@ static int pvr2_encoder_cmd(void *ctxt, wrData[idx+4] = 0; } - ret = pvr2_encoder_write_words(hdw,wrData,idx); + ret = pvr2_encoder_write_words(hdw,MBOX_BASE,wrData,idx); if (ret) break; wrData[0] = IVTV_MBOX_DRIVER_DONE|IVTV_MBOX_DRIVER_BUSY; - ret = pvr2_encoder_write_words(hdw,wrData,1); + ret = pvr2_encoder_write_words(hdw,MBOX_BASE,wrData,1); if (ret) break; poll_count = 0; while (1) { - if (poll_count < 10000000) poll_count++; - ret = pvr2_encoder_read_words(hdw,!0,rdData,1); - if (ret) break; + poll_count++; + ret = pvr2_encoder_read_words(hdw,MBOX_BASE,rdData, + arg_cnt_recv+4); + if (ret) { + break; + } if (rdData[0] & IVTV_MBOX_FIRMWARE_DONE) { break; } - if (poll_count == 100) { + if (rdData[0] && (poll_count < 1000)) continue; + if (!rdData[0]) { + retry_flag = !0; + pvr2_trace( + PVR2_TRACE_ERROR_LEGS, + "Encoder timed out waiting for us" + "; arranging to retry"); + } else { pvr2_trace( PVR2_TRACE_ERROR_LEGS, "***WARNING*** device's encoder" " appears to be stuck" " (status=0%08x)",rdData[0]); + } + pvr2_trace( + PVR2_TRACE_ERROR_LEGS, + "Encoder command: 0x%02x",cmd); + for (idx = 4; idx < arg_cnt_send; idx++) { pvr2_trace( PVR2_TRACE_ERROR_LEGS, - "Encoder command: 0x%02x",cmd); - for (idx = 4; idx < arg_cnt_send; idx++) { - pvr2_trace( - PVR2_TRACE_ERROR_LEGS, - "Encoder arg%d: 0x%08x", - idx-3,wrData[idx]); - } - pvr2_trace( - PVR2_TRACE_ERROR_LEGS, - "Giving up waiting." - " It is likely that" - " this is a bad idea..."); - ret = -EBUSY; - break; + "Encoder arg%d: 0x%08x", + idx-3,wrData[idx]); } + ret = -EBUSY; + break; + } + if (retry_flag) { + if (try_count < 20) continue; + pvr2_trace( + PVR2_TRACE_ERROR_LEGS, + "Too many retries..."); + ret = -EBUSY; + } + if (ret) { + pvr2_trace( + PVR2_TRACE_ERROR_LEGS, + "Giving up on command." + " It is likely that" + " this is a bad idea..."); + break; } - if (ret) break; wrData[0] = 0x7; - ret = pvr2_encoder_read_words( - hdw,0,rdData, ARRAY_SIZE(rdData)); - if (ret) break; #if 0 for (idx = 0; idx < args; idx++) { if (rdData[idx] != wrData[idx]) { @@ -285,7 +319,7 @@ static int pvr2_encoder_cmd(void *ctxt, } wrData[0] = 0x0; - ret = pvr2_encoder_write_words(hdw,wrData,1); + ret = pvr2_encoder_write_words(hdw,MBOX_BASE,wrData,1); if (ret) break; } while(0); LOCK_GIVE(hdw->ctl_lock); -- cgit v1.2.3 From 8b4ce16d98330197e98a4fba5c0e753fd03de634 Mon Sep 17 00:00:00 2001 From: Mike Isely Date: Sun, 28 Jan 2007 12:42:56 -0600 Subject: pvrusb2: video corruption fixes From: Mike Isely Tweak the encoder setup in order to stop it from corrupting the video data when there is a disruption in the data flow (e.g. a channel change). Signed-off-by: Mike Isely --- .../drivers/media/video/pvrusb2/pvrusb2-encoder.c | 69 ++++++++++++++++++++++ 1 file changed, 69 insertions(+) (limited to 'linux/drivers/media/video/pvrusb2') diff --git a/linux/drivers/media/video/pvrusb2/pvrusb2-encoder.c b/linux/drivers/media/video/pvrusb2/pvrusb2-encoder.c index 66217093b..07bbe5c02 100644 --- a/linux/drivers/media/video/pvrusb2/pvrusb2-encoder.c +++ b/linux/drivers/media/video/pvrusb2/pvrusb2-encoder.c @@ -354,6 +354,73 @@ static int pvr2_encoder_vcmd(struct pvr2_hdw *hdw, int cmd, return pvr2_encoder_cmd(hdw,cmd,args,0,data); } + +/* This implements some extra setup for the encoder that seems to be + specific to the PVR USB2 hardware. */ +int pvr2_encoder_prep_config(struct pvr2_hdw *hdw) +{ + int ret = 0; + int encMisc3Arg = 0; + +#ifdef notdef + /* This inexplicable bit happens in the Hauppage windows + driver (for both 24xxx and 29xxx devices). However I + currently see no difference in behavior with or without + this stuff. Leave this here as a note of its existence, + but don't use it. */ + LOCK_TAKE(hdw->ctl_lock); do { + u32 dat[1]; + dat[0] = 0x80000640; + pvr2_encoder_write_words(hdw,0x01fe,dat,1); + pvr2_encoder_write_words(hdw,0x023e,dat,1); + } while(0); LOCK_GIVE(hdw->ctl_lock); +#endif + + /* Mike Isely 26-Jan-2006 The windows driver + sends the following list of ENC_MISC commands (for both + 24xxx and 29xxx devices). Meanings are not entirely clear, + however without the ENC_MISC(3,1) command then we risk + random perpetual video corruption whenever the video input + breaks up for a moment (like when switching channels). */ + + +#ifdef notdef + /* This ENC_MISC(5,0) command seems to hurt 29xxx sync + performance on channel changes, but is not a problem on + 24xxx devices. */ + ret |= pvr2_encoder_vcmd(hdw, CX2341X_ENC_MISC,4, 5,0,0,0); +#endif + + /* This ENC_MISC(3,encMisc3Arg) command is critical - without + it there will eventually be video corruption. Also, the + 29xxx case is strange - the Windows driver is passing 1 + regardless of device type but if we have 1 for 29xxx device + the video turns sluggish. */ + switch (hdw->hdw_type) { + case PVR2_HDW_TYPE_24XXX: encMisc3Arg = 1; break; + case PVR2_HDW_TYPE_29XXX: encMisc3Arg = 0; break; + default: break; + } + ret |= pvr2_encoder_vcmd(hdw, CX2341X_ENC_MISC,4, 3, + encMisc3Arg,0,0); + + ret |= pvr2_encoder_vcmd(hdw, CX2341X_ENC_MISC,4, 8,0,0,0); + +#ifdef notdef + /* This ENC_MISC(4,1) command is poisonous, so it is commented + out. But I'm leaving it here anyway to document its + existence in the Windows driver. The effect of this + command is that apps displaying the stream become sluggish + with stuttering video. */ + ret |= pvr2_encoder_vcmd(hdw, CX2341X_ENC_MISC,4, 4,1,0,0); +#endif + + ret |= pvr2_encoder_vcmd(hdw, CX2341X_ENC_MISC,4, 0,3,0,0); + ret |= pvr2_encoder_vcmd(hdw, CX2341X_ENC_MISC,4,15,0,0,0); + + return ret; +} + int pvr2_encoder_configure(struct pvr2_hdw *hdw) { int ret; @@ -368,6 +435,8 @@ int pvr2_encoder_configure(struct pvr2_hdw *hdw) ret = 0; + ret |= pvr2_encoder_prep_config(hdw); + if (!ret) ret = pvr2_encoder_vcmd( hdw,CX2341X_ENC_SET_NUM_VSYNC_LINES, 2, 0xf0, 0xf0); -- cgit v1.2.3 From fa3c54d7157ced7633dabdf681c21f139976f384 Mon Sep 17 00:00:00 2001 From: Mike Isely Date: Sun, 28 Jan 2007 13:08:36 -0600 Subject: pvrusb2: VIDIOC_DBG_[S|G]_REGISTER fixups From: Mike Isely Support 64 bit register IDs internally. Only allow root access to this API (for both set and get). Note that actual 64 bit access only becomes possible once the definition for v4l2_register is updated, but this change clears the way for it from the viewpoint of the pvrusb2 driver. Signed-off-by: Mike Isely --- linux/drivers/media/video/pvrusb2/pvrusb2-hdw.c | 4 +++- linux/drivers/media/video/pvrusb2/pvrusb2-hdw.h | 2 +- linux/drivers/media/video/pvrusb2/pvrusb2-v4l2.c | 4 ---- 3 files changed, 4 insertions(+), 6 deletions(-) (limited to 'linux/drivers/media/video/pvrusb2') diff --git a/linux/drivers/media/video/pvrusb2/pvrusb2-hdw.c b/linux/drivers/media/video/pvrusb2/pvrusb2-hdw.c index 7e6ac85b6..06a840a47 100644 --- a/linux/drivers/media/video/pvrusb2/pvrusb2-hdw.c +++ b/linux/drivers/media/video/pvrusb2/pvrusb2-hdw.c @@ -3366,7 +3366,7 @@ static int pvr2_hdw_get_eeprom_addr(struct pvr2_hdw *hdw) int pvr2_hdw_register_access(struct pvr2_hdw *hdw, - u32 chip_id, u32 reg_id, + u32 chip_id, u64 reg_id, int setFl,u32 *val_ptr) { #ifdef CONFIG_VIDEO_ADV_DEBUG @@ -3376,6 +3376,8 @@ int pvr2_hdw_register_access(struct pvr2_hdw *hdw, int stat = 0; int okFl = 0; + if (!capable(CAP_SYS_ADMIN)) return -EPERM; + req.i2c_id = chip_id; req.reg = reg_id; if (setFl) req.val = *val_ptr; diff --git a/linux/drivers/media/video/pvrusb2/pvrusb2-hdw.h b/linux/drivers/media/video/pvrusb2/pvrusb2-hdw.h index 9785ffcce..aa45114ba 100644 --- a/linux/drivers/media/video/pvrusb2/pvrusb2-hdw.h +++ b/linux/drivers/media/video/pvrusb2/pvrusb2-hdw.h @@ -231,7 +231,7 @@ void pvr2_hdw_v4l_store_minor_number(struct pvr2_hdw *, setFl - true to set the register, false to read it val_ptr - storage location for source / result. */ int pvr2_hdw_register_access(struct pvr2_hdw *, - u32 chip_id,u32 reg_id, + u32 chip_id,u64 reg_id, int setFl,u32 *val_ptr); /* The following entry points are all lower level things you normally don't diff --git a/linux/drivers/media/video/pvrusb2/pvrusb2-v4l2.c b/linux/drivers/media/video/pvrusb2/pvrusb2-v4l2.c index 9bc03cfda..165c00f44 100644 --- a/linux/drivers/media/video/pvrusb2/pvrusb2-v4l2.c +++ b/linux/drivers/media/video/pvrusb2/pvrusb2-v4l2.c @@ -739,10 +739,6 @@ static int pvr2_v4l2_do_ioctl(struct inode *inode, struct file *file, } #ifdef CONFIG_VIDEO_ADV_DEBUG case VIDIOC_DBG_S_REGISTER: - if (!capable(CAP_SYS_ADMIN)) { - ret = -EPERM; - break; - } /* fall through */ case VIDIOC_DBG_G_REGISTER: { u32 val; -- cgit v1.2.3