From 8af81ddb12cf34e2f6eab7e130f1e55e1911ab8f Mon Sep 17 00:00:00 2001 From: Abylay Ospan Date: Sun, 2 Jan 2011 09:14:00 -0300 Subject: [PATCH] [media] Fix CI code for NetUP Dual DVB-T/C CI RF card CI reset takes several seconds on some CAM, so there is no need to lock mutex all that time. Also we need not to preserve CI's reset bits in CIBUSCTRL register, they are handled automatically by FPGA. Set it to 0 explicitly in order to not reset wrong CAM. Signed-off-by: Abylay Ospan Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/cx23885/altera-ci.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/drivers/media/video/cx23885/altera-ci.c b/drivers/media/video/cx23885/altera-ci.c index 4269e05..678539b 100644 --- a/drivers/media/video/cx23885/altera-ci.c +++ b/drivers/media/video/cx23885/altera-ci.c @@ -283,7 +283,7 @@ int altera_ci_op_cam(struct dvb_ca_en50221 *en50221, int slot, netup_fpga_op_rw(inter, NETUP_CI_ADDR1, ((addr >> 7) & 0x7f), 0); store = netup_fpga_op_rw(inter, NETUP_CI_BUSCTRL, 0, NETUP_CI_FLG_RD); - store &= 0x3f; + store &= 0x0f; store |= ((state->nr << 7) | (flag << 6)); netup_fpga_op_rw(inter, NETUP_CI_BUSCTRL, store, 0); @@ -340,19 +340,25 @@ int altera_ci_slot_reset(struct dvb_ca_en50221 *en50221, int slot) ret = netup_fpga_op_rw(inter, NETUP_CI_BUSCTRL, 0, NETUP_CI_FLG_RD); netup_fpga_op_rw(inter, NETUP_CI_BUSCTRL, - ret | (1 << (5 - state->nr)), 0); + (ret & 0xcf) | (1 << (5 - state->nr)), 0); + + mutex_unlock(&inter->fpga_mutex); for (;;) { mdelay(50); + + mutex_lock(&inter->fpga_mutex); + ret = netup_fpga_op_rw(inter, NETUP_CI_BUSCTRL, 0, NETUP_CI_FLG_RD); + mutex_unlock(&inter->fpga_mutex); + if ((ret & (1 << (5 - state->nr))) == 0) break; if (time_after(jiffies, t_out)) break; } - mutex_unlock(&inter->fpga_mutex); ci_dbg_print("%s: %d msecs\n", __func__, jiffies_to_msecs(jiffies + msecs_to_jiffies(9999) - t_out)); @@ -381,7 +387,7 @@ int altera_ci_slot_ts_ctl(struct dvb_ca_en50221 *en50221, int slot) ret = netup_fpga_op_rw(inter, NETUP_CI_BUSCTRL, 0, NETUP_CI_FLG_RD); netup_fpga_op_rw(inter, NETUP_CI_BUSCTRL, - ret | (1 << (3 - state->nr)), 0); + (ret & 0x0f) | (1 << (3 - state->nr)), 0); mutex_unlock(&inter->fpga_mutex); -- 2.7.4